{"id":30712,"date":"2025-04-21T01:15:58","date_gmt":"2025-04-20T17:15:58","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/30712.html"},"modified":"2025-04-21T01:15:58","modified_gmt":"2025-04-20T17:15:58","slug":"%e7%bb%88%e6%9e%81%e5%af%b9%e5%86%b3%ef%bc%81tomcat-%e6%9c%8d%e5%8a%a1%e5%99%a8%e5%8e%8b%e7%bc%a9%e6%80%a7%e8%83%bd%e5%93%aa%e5%ae%b6%e5%bc%ba%ef%bc%9fgzip%e3%80%81brotli%e3%80%81zstd-%e5%85%a8","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/30712.html","title":{"rendered":"\u7ec8\u6781\u5bf9\u51b3\uff01Tomcat \u670d\u52a1\u5668\u538b\u7f29\u6027\u80fd\u54ea\u5bb6\u5f3a\uff1fGzip\u3001Brotli\u3001Zstd \u5168\u9762\u6d4b\u8bc4"},"content":{"rendered":"<p>Tomcat\u670d\u52a1\u5668\u7684\u4e09\u79cd\u538b\u7f29\u6d4b\u8bc4&#xff01;&#xff01;&#xff01;<\/p>\n<p>\u4e09\u4e07\u5b57\u957f\u6587&#xff0c;\u8ba9\u4f60\u4e00\u6b21\u770b\u4e2a\u591f<\/p>\n<h2>Tomcat \u670d\u52a1\u5668\u4e09\u79cd\u538b\u7f29\u65b9\u5f0f\u6d4b\u8bc4&#xff1a;Gzip\u3001Brotli\u3001Zstd<\/h2>\n<p>\u5728 Web \u670d\u52a1\u9886\u57df&#xff0c;\u6570\u636e\u538b\u7f29\u5bf9\u4e8e\u63d0\u5347\u7f51\u7ad9\u6027\u80fd\u81f3\u5173\u91cd\u8981\u3002\u901a\u8fc7\u538b\u7f29\u670d\u52a1\u5668\u54cd\u5e94\u6570\u636e&#xff0c;\u53ef\u4ee5\u6709\u6548\u51cf\u5c11\u7f51\u7edc\u4f20\u8f93\u91cf&#xff0c;\u4ece\u800c\u7f29\u77ed\u9875\u9762\u52a0\u8f7d\u65f6\u95f4&#xff0c;\u6539\u5584\u7528\u6237\u4f53\u9a8c&#xff0c;\u5e76\u8282\u7701\u5e26\u5bbd\u6210\u672c\u3002Tomcat \u670d\u52a1\u5668\u4f5c\u4e3a\u5e38\u7528\u7684 Java Web \u670d\u52a1\u5668&#xff0c;\u652f\u6301\u591a\u79cd\u538b\u7f29\u65b9\u5f0f&#xff0c;\u5176\u4e2d Gzip\u3001Brotli \u548c Zstd \u662f\u76ee\u524d\u6700\u4e3a\u6d41\u884c\u7684\u4e09\u79cd\u9009\u62e9\u3002<\/p>\n<p>\u672c\u6587\u5c06\u5bf9\u8fd9\u4e09\u79cd\u538b\u7f29\u65b9\u5f0f\u5728 Tomcat \u670d\u52a1\u5668\u4e0a\u7684\u6027\u80fd\u8868\u73b0\u8fdb\u884c\u5168\u9762\u7684\u6d4b\u8bc4&#xff0c;\u6db5\u76d6\u538b\u7f29\u7387\u3001\u538b\u7f29\u901f\u5ea6\u3001\u89e3\u538b\u7f29\u901f\u5ea6\u7b49\u5173\u952e\u6307\u6807\u3002\u6211\u4eec\u5c06\u5206\u6790\u5404\u79cd\u538b\u7f29\u7b97\u6cd5\u7684\u4f18\u7f3a\u70b9&#xff0c;\u5e76\u7ed3\u5408\u5b9e\u9645\u6d4b\u8bd5\u6570\u636e&#xff0c;\u5e2e\u52a9\u8bfb\u8005\u4e86\u89e3\u5982\u4f55\u5728 Tomcat \u4e2d\u9009\u62e9\u6700\u4f73\u7684\u538b\u7f29\u65b9\u6848&#xff0c;\u4ee5\u6700\u5927\u9650\u5ea6\u5730\u63d0\u5347\u7f51\u7ad9\u6027\u80fd\u3002\u6700\u7ec8&#xff0c;\u6211\u4eec\u5c06\u63d0\u4f9b\u4e00\u4e9b\u5b9e\u7528\u5efa\u8bae&#xff0c;\u6307\u5bfc\u8bfb\u8005\u6839\u636e\u81ea\u8eab\u9700\u6c42\u8fdb\u884c\u914d\u7f6e\u4f18\u5316\u3002<\/p>\n<p>\u4e00\u3001\u6d4b\u8bd5\u73af\u5883<\/p>\n<ul>\n<li>\u670d\u52a1\u5668&#xff1a;CentOS 7&#xff0c;4 \u6838 8G \u5185\u5b58<\/li>\n<li>Tomcat \u7248\u672c&#xff1a;Apache Tomcat 9.0.56<\/li>\n<li>\u6d4b\u8bd5\u5de5\u5177&#xff1a;Apache JMeter 5.4.3<\/li>\n<li>\u6d4b\u8bd5\u6570\u636e&#xff1a;1MB \u7684\u6587\u672c\u6587\u4ef6<\/li>\n<\/ul>\n<p>\u4e8c\u3001\u6d4b\u8bd5\u6307\u6807<\/p>\n<ul>\n<li>\u538b\u7f29\u7387&#xff1a; \u538b\u7f29\u540e\u6587\u4ef6\u5927\u5c0f\u4e0e\u538b\u7f29\u524d\u6587\u4ef6\u5927\u5c0f\u7684\u6bd4\u503c&#xff0c;\u8d8a\u5c0f\u8868\u793a\u538b\u7f29\u7387\u8d8a\u9ad8\u3002<\/li>\n<li>\u538b\u7f29\u901f\u5ea6&#xff1a; \u538b\u7f29 1MB \u6570\u636e\u6240\u9700\u7684\u65f6\u95f4&#xff0c;\u8d8a\u77ed\u8868\u793a\u538b\u7f29\u901f\u5ea6\u8d8a\u5feb\u3002<\/li>\n<li>\u89e3\u538b\u7f29\u901f\u5ea6&#xff1a; \u89e3\u538b\u7f29 1MB \u6570\u636e\u6240\u9700\u7684\u65f6\u95f4&#xff0c;\u8d8a\u77ed\u8868\u793a\u89e3\u538b\u7f29\u901f\u5ea6\u8d8a\u5feb\u3002<\/li>\n<li>CPU \u5360\u7528\u7387&#xff1a; \u538b\u7f29\u548c\u89e3\u538b\u7f29\u8fc7\u7a0b\u4e2d CPU \u7684\u5360\u7528\u7387&#xff0c;\u8d8a\u4f4e\u8868\u793a\u5bf9\u670d\u52a1\u5668\u8d44\u6e90\u7684\u6d88\u8017\u8d8a\u5c0f\u3002<\/li>\n<\/ul>\n<p>\u6d4b\u8bc4\u8fc7\u7a0b&#xff08;3\u4e2a\u538b\u7f29\u7b97\u6cd5&#xff0c;\u4e0d\u719f\u6089\u7684\u53ef\u4ee5\u53bb\u8fd9\u91cc&#xff09;<\/p>\n<h2>\u4e00\u3001Tomcat\u914d\u7f6eBrotli\u538b\u7f29<\/h2>\n<h4>1. \u5b89\u88c5Brotli\u6a21\u5757<\/h4>\n<p><span class=\"token comment\"># \u4e0b\u8f7dtomcat-brotli\u6a21\u5757<\/span><br \/>\n<span class=\"token function\">git<\/span> clone https:\/\/github.com\/nixxcode\/tomcat-brotli.git<\/p>\n<p><span class=\"token comment\"># \u7f16\u8bd1\u6a21\u5757<\/span><br \/>\nmvn clean package<\/p>\n<p><span class=\"token comment\"># \u5c06\u7f16\u8bd1\u597d\u7684jar\u590d\u5236\u5230Tomcat\u7684lib\u76ee\u5f55<\/span><br \/>\n<span class=\"token function\">cp<\/span> target\/tomcat-brotli.jar <span class=\"token variable\">$TOMCAT_HOME<\/span>\/lib\/<\/p>\n<h4>2. server.xml\u914d\u7f6e<\/h4>\n<p><span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>Connector<\/span> <span class=\"token attr-name\">port<\/span><span class=\"token attr-value\"><span class=\"token punctuation attr-equals\">&#061;<\/span><span class=\"token punctuation\">&#034;<\/span>8080<span class=\"token punctuation\">&#034;<\/span><\/span> <span class=\"token attr-name\">protocol<\/span><span class=\"token attr-value\"><span class=\"token punctuation attr-equals\">&#061;<\/span><span class=\"token punctuation\">&#034;<\/span>HTTP\/1.1<span class=\"token punctuation\">&#034;<\/span><\/span><br \/>\n           <span class=\"token attr-name\">connectionTimeout<\/span><span class=\"token attr-value\"><span class=\"token punctuation attr-equals\">&#061;<\/span><span class=\"token punctuation\">&#034;<\/span>20000<span class=\"token punctuation\">&#034;<\/span><\/span><br \/>\n           <span class=\"token attr-name\">redirectPort<\/span><span class=\"token attr-value\"><span class=\"token punctuation attr-equals\">&#061;<\/span><span class=\"token punctuation\">&#034;<\/span>8443<span class=\"token punctuation\">&#034;<\/span><\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n    <span class=\"token comment\">&lt;!&#8211; \u6dfb\u52a0Brotli\u538b\u7f29\u914d\u7f6e &#8211;&gt;<\/span><br \/>\n    <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>CompressionConfig<\/span><br \/>\n        <span class=\"token attr-name\">compressionLevel<\/span><span class=\"token attr-value\"><span class=\"token punctuation attr-equals\">&#061;<\/span><span class=\"token punctuation\">&#034;<\/span>6<span class=\"token punctuation\">&#034;<\/span><\/span><br \/>\n        <span class=\"token attr-name\">brotliCompressionLevel<\/span><span class=\"token attr-value\"><span class=\"token punctuation attr-equals\">&#061;<\/span><span class=\"token punctuation\">&#034;<\/span>6<span class=\"token punctuation\">&#034;<\/span><\/span><br \/>\n        <span class=\"token attr-name\">brotliWindowSize<\/span><span class=\"token attr-value\"><span class=\"token punctuation attr-equals\">&#061;<\/span><span class=\"token punctuation\">&#034;<\/span>22<span class=\"token punctuation\">&#034;<\/span><\/span><br \/>\n        <span class=\"token attr-name\">compressionMinSize<\/span><span class=\"token attr-value\"><span class=\"token punctuation attr-equals\">&#061;<\/span><span class=\"token punctuation\">&#034;<\/span>2048<span class=\"token punctuation\">&#034;<\/span><\/span><br \/>\n        <span class=\"token attr-name\">noCompressionUserAgents<\/span><span class=\"token attr-value\"><span class=\"token punctuation attr-equals\">&#061;<\/span><span class=\"token punctuation\">&#034;<\/span>gozilla, traviata<span class=\"token punctuation\">&#034;<\/span><\/span><br \/>\n        <span class=\"token attr-name\">compressibleMimeType<\/span><span class=\"token attr-value\"><span class=\"token punctuation attr-equals\">&#061;<\/span><span class=\"token punctuation\">&#034;<\/span>text\/html,text\/xml,text\/plain,text\/css,<br \/>\n                             text\/javascript,application\/javascript,<br \/>\n                             application\/json,application\/xml<span class=\"token punctuation\">&#034;<\/span><\/span><span class=\"token punctuation\">\/&gt;<\/span><\/span><br \/>\n<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>Connector<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><\/p>\n<h4>3. web.xml\u914d\u7f6e<\/h4>\n<p><span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>web-app<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n    <span class=\"token comment\">&lt;!&#8211; \u914d\u7f6e\u538b\u7f29\u8fc7\u6ee4\u5668 &#8211;&gt;<\/span><br \/>\n    <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>filter<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n        <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>filter-name<\/span><span class=\"token punctuation\">&gt;<\/span><\/span>BrotliFilter<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>filter-name<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n        <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>filter-class<\/span><span class=\"token punctuation\">&gt;<\/span><\/span>org.apache.catalina.filters.BrotliFilter<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>filter-class<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n        <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>init-param<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n            <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>param-name<\/span><span class=\"token punctuation\">&gt;<\/span><\/span>brotliCompressionLevel<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>param-name<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n            <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>param-value<\/span><span class=\"token punctuation\">&gt;<\/span><\/span>6<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>param-value<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n        <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>init-param<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n        <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>init-param<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n            <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>param-name<\/span><span class=\"token punctuation\">&gt;<\/span><\/span>compressionMinSize<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>param-name<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n            <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>param-value<\/span><span class=\"token punctuation\">&gt;<\/span><\/span>2048<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>param-value<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n        <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>init-param<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n        <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>init-param<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n            <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>param-name<\/span><span class=\"token punctuation\">&gt;<\/span><\/span>compressibleMimeTypes<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>param-name<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n            <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>param-value<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n                text\/html,text\/xml,text\/plain,text\/css,<br \/>\n                text\/javascript,application\/javascript,<br \/>\n                application\/json,application\/xml<br \/>\n            <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>param-value<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n        <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>init-param<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n    <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>filter<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><\/p>\n<p>    <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>filter-mapping<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n        <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>filter-name<\/span><span class=\"token punctuation\">&gt;<\/span><\/span>BrotliFilter<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>filter-name<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n        <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>url-pattern<\/span><span class=\"token punctuation\">&gt;<\/span><\/span>\/*<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>url-pattern<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n    <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>filter-mapping<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>web-app<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><\/p>\n<h3>\u4e8c\u3001Spring Boot\u4e2d\u7684Brotli\u914d\u7f6e<\/h3>\n<h4>1. \u6dfb\u52a0\u4f9d\u8d56<\/h4>\n<p><span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>dependency<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n    <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>groupId<\/span><span class=\"token punctuation\">&gt;<\/span><\/span>org.brotli<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>groupId<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n    <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>artifactId<\/span><span class=\"token punctuation\">&gt;<\/span><\/span>dec<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>artifactId<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n    <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>version<\/span><span class=\"token punctuation\">&gt;<\/span><\/span>0.1.2<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>version<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>dependency<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><\/p>\n<h4>2. \u914d\u7f6e\u538b\u7f29<\/h4>\n<p><span class=\"token annotation punctuation\">&#064;Configuration<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">BrotliConfig<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>    <span class=\"token annotation punctuation\">&#064;Bean<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token class-name\">FilterRegistrationBean<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token class-name\">BrotliFilter<\/span><span class=\"token punctuation\">&gt;<\/span><\/span> <span class=\"token function\">brotliFilter<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token class-name\">FilterRegistrationBean<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token class-name\">BrotliFilter<\/span><span class=\"token punctuation\">&gt;<\/span><\/span> registration <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">FilterRegistrationBean<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        registration<span class=\"token punctuation\">.<\/span><span class=\"token function\">setFilter<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">new<\/span> <span class=\"token class-name\">BrotliFilter<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        registration<span class=\"token punctuation\">.<\/span><span class=\"token function\">addUrlPatterns<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\/*&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token comment\">\/\/ \u914d\u7f6e\u53c2\u6570<\/span><br \/>\n        <span class=\"token class-name\">Map<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token class-name\">String<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">String<\/span><span class=\"token punctuation\">&gt;<\/span><\/span> params <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">HashMap<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        params<span class=\"token punctuation\">.<\/span><span class=\"token function\">put<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;brotliCompressionLevel&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;6&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        params<span class=\"token punctuation\">.<\/span><span class=\"token function\">put<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;compressionMinSize&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;2048&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        params<span class=\"token punctuation\">.<\/span><span class=\"token function\">put<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;compressibleMimeTypes&#034;<\/span><span class=\"token punctuation\">,<\/span><br \/>\n            <span class=\"token string\">&#034;text\/html,text\/xml,text\/plain,text\/css,&#034;<\/span> <span class=\"token operator\">&#043;<\/span><br \/>\n            <span class=\"token string\">&#034;text\/javascript,application\/javascript,&#034;<\/span> <span class=\"token operator\">&#043;<\/span><br \/>\n            <span class=\"token string\">&#034;application\/json,application\/xml&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        registration<span class=\"token punctuation\">.<\/span><span class=\"token function\">setInitParameters<\/span><span class=\"token punctuation\">(<\/span>params<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token keyword\">return<\/span> registration<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h4>3. application.properties\u914d\u7f6e<\/h4>\n<p># Brotli\u538b\u7f29\u914d\u7f6e<br \/>\nserver.compression.enabled&#061;true<br \/>\nserver.compression.min-response-size&#061;2048<br \/>\nserver.compression.mime-types&#061;text\/html,text\/xml,text\/plain,text\/css,\\\\<br \/>\n                            text\/javascript,application\/javascript,\\\\<br \/>\n                            application\/json,application\/xml<\/p>\n<h3>\u4e09\u3001\u9ad8\u7ea7\u914d\u7f6e\u548c\u4f18\u5316<\/h3>\n<h4>1. \u81ea\u5b9a\u4e49\u538b\u7f29\u8fc7\u6ee4\u5668<\/h4>\n<p><span class=\"token annotation punctuation\">&#064;Component<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">CustomBrotliFilter<\/span> <span class=\"token keyword\">extends<\/span> <span class=\"token class-name\">OncePerRequestFilter<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>    <span class=\"token keyword\">private<\/span> <span class=\"token keyword\">final<\/span> <span class=\"token class-name\">BrotliCompressor<\/span> compressor<span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token keyword\">public<\/span> <span class=\"token class-name\">CustomBrotliFilter<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>compressor <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">BrotliCompressor<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token annotation punctuation\">&#064;Override<\/span><br \/>\n    <span class=\"token keyword\">protected<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">doFilterInternal<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">HttpServletRequest<\/span> request<span class=\"token punctuation\">,<\/span><br \/>\n                                  <span class=\"token class-name\">HttpServletResponse<\/span> response<span class=\"token punctuation\">,<\/span><br \/>\n                                  <span class=\"token class-name\">FilterChain<\/span> filterChain<span class=\"token punctuation\">)<\/span> <span class=\"token keyword\">throws<\/span> <span class=\"token class-name\">ServletException<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">IOException<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>        <span class=\"token class-name\">String<\/span> acceptEncoding <span class=\"token operator\">&#061;<\/span> request<span class=\"token punctuation\">.<\/span><span class=\"token function\">getHeader<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;Accept-Encoding&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>acceptEncoding <span class=\"token operator\">!&#061;<\/span> <span class=\"token keyword\">null<\/span> <span class=\"token operator\">&amp;&amp;<\/span> acceptEncoding<span class=\"token punctuation\">.<\/span><span class=\"token function\">contains<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;br&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token class-name\">BrotliResponseWrapper<\/span> wrapper <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">BrotliResponseWrapper<\/span><span class=\"token punctuation\">(<\/span>response<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            filterChain<span class=\"token punctuation\">.<\/span><span class=\"token function\">doFilter<\/span><span class=\"token punctuation\">(<\/span>request<span class=\"token punctuation\">,<\/span> wrapper<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            wrapper<span class=\"token punctuation\">.<\/span><span class=\"token function\">finishResponse<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">else<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            filterChain<span class=\"token punctuation\">.<\/span><span class=\"token function\">doFilter<\/span><span class=\"token punctuation\">(<\/span>request<span class=\"token punctuation\">,<\/span> response<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h4>2. \u538b\u7f29\u7b49\u7ea7\u52a8\u6001\u8c03\u6574<\/h4>\n<p><span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">AdaptiveBrotliFilter<\/span> <span class=\"token keyword\">extends<\/span> <span class=\"token class-name\">OncePerRequestFilter<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>    <span class=\"token annotation punctuation\">&#064;Override<\/span><br \/>\n    <span class=\"token keyword\">protected<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">doFilterInternal<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">HttpServletRequest<\/span> request<span class=\"token punctuation\">,<\/span><br \/>\n                                  <span class=\"token class-name\">HttpServletResponse<\/span> response<span class=\"token punctuation\">,<\/span><br \/>\n                                  <span class=\"token class-name\">FilterChain<\/span> filterChain<span class=\"token punctuation\">)<\/span> <span class=\"token keyword\">throws<\/span> <span class=\"token class-name\">ServletException<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">IOException<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>        <span class=\"token keyword\">int<\/span> quality <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">determineQuality<\/span><span class=\"token punctuation\">(<\/span>request<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token class-name\">BrotliParameters<\/span> params <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">BrotliParameters<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        params<span class=\"token punctuation\">.<\/span><span class=\"token function\">setQuality<\/span><span class=\"token punctuation\">(<\/span>quality<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token comment\">\/\/ \u5e94\u7528\u538b\u7f29<\/span><br \/>\n        <span class=\"token function\">compress<\/span><span class=\"token punctuation\">(<\/span>request<span class=\"token punctuation\">,<\/span> response<span class=\"token punctuation\">,<\/span> filterChain<span class=\"token punctuation\">,<\/span> params<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token keyword\">private<\/span> <span class=\"token keyword\">int<\/span> <span class=\"token function\">determineQuality<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">HttpServletRequest<\/span> request<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token class-name\">String<\/span> contentType <span class=\"token operator\">&#061;<\/span> request<span class=\"token punctuation\">.<\/span><span class=\"token function\">getContentType<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token keyword\">long<\/span> contentLength <span class=\"token operator\">&#061;<\/span> request<span class=\"token punctuation\">.<\/span><span class=\"token function\">getContentLengthLong<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>contentLength <span class=\"token operator\">&lt;<\/span> <span class=\"token number\">10<\/span> <span class=\"token operator\">*<\/span> <span class=\"token number\">1024<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span> <span class=\"token comment\">\/\/ 10KB<\/span><br \/>\n            <span class=\"token keyword\">return<\/span> <span class=\"token number\">4<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u5feb\u901f\u538b\u7f29<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">else<\/span> <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>contentLength <span class=\"token operator\">&lt;<\/span> <span class=\"token number\">100<\/span> <span class=\"token operator\">*<\/span> <span class=\"token number\">1024<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span> <span class=\"token comment\">\/\/ 100KB<\/span><br \/>\n            <span class=\"token keyword\">return<\/span> <span class=\"token number\">6<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u4e2d\u7b49\u538b\u7f29<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">else<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token keyword\">return<\/span> <span class=\"token number\">8<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u9ad8\u538b\u7f29<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h4>3. \u7f13\u5b58\u914d\u7f6e<\/h4>\n<p><span class=\"token annotation punctuation\">&#064;Configuration<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">CacheConfig<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>    <span class=\"token annotation punctuation\">&#064;Bean<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token class-name\">CacheManager<\/span> <span class=\"token function\">cacheManager<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token class-name\">SimpleCacheManager<\/span> cacheManager <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">SimpleCacheManager<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token class-name\">ConcurrentMapCache<\/span> brotliCache <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">ConcurrentMapCache<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;brotliCache&#034;<\/span><span class=\"token punctuation\">,<\/span><br \/>\n            <span class=\"token class-name\">CacheBuilder<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">newBuilder<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n                <span class=\"token punctuation\">.<\/span><span class=\"token function\">maximumSize<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">1000<\/span><span class=\"token punctuation\">)<\/span><br \/>\n                <span class=\"token punctuation\">.<\/span><span class=\"token function\">expireAfterWrite<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">TimeUnit<\/span><span class=\"token punctuation\">.<\/span>HOURS<span class=\"token punctuation\">)<\/span><br \/>\n                <span class=\"token punctuation\">.<\/span><span class=\"token function\">build<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">asMap<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span><br \/>\n            <span class=\"token boolean\">false<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        cacheManager<span class=\"token punctuation\">.<\/span><span class=\"token function\">setCaches<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Collections<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">singletonList<\/span><span class=\"token punctuation\">(<\/span>brotliCache<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> cacheManager<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h3>\u56db\u3001\u76d1\u63a7\u548c\u6027\u80fd\u5206\u6790<\/h3>\n<h4>1. \u6027\u80fd\u76d1\u63a7<\/h4>\n<p><span class=\"token annotation punctuation\">&#064;Component<\/span><br \/>\n<span class=\"token annotation punctuation\">&#064;Aspect<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">BrotliCompressionMonitor<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>    <span class=\"token keyword\">private<\/span> <span class=\"token keyword\">final<\/span> <span class=\"token class-name\">MeterRegistry<\/span> meterRegistry<span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token keyword\">public<\/span> <span class=\"token class-name\">BrotliCompressionMonitor<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">MeterRegistry<\/span> meterRegistry<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>meterRegistry <span class=\"token operator\">&#061;<\/span> meterRegistry<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token annotation punctuation\">&#064;Around<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;execution(* org.apache.catalina.filters.BrotliFilter.doFilter(..))&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token class-name\">Object<\/span> <span class=\"token function\">monitorCompression<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">ProceedingJoinPoint<\/span> joinPoint<span class=\"token punctuation\">)<\/span> <span class=\"token keyword\">throws<\/span> <span class=\"token class-name\">Throwable<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token class-name\">Timer<span class=\"token punctuation\">.<\/span>Sample<\/span> sample <span class=\"token operator\">&#061;<\/span> <span class=\"token class-name\">Timer<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">start<\/span><span class=\"token punctuation\">(<\/span>meterRegistry<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token keyword\">try<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token keyword\">return<\/span> joinPoint<span class=\"token punctuation\">.<\/span><span class=\"token function\">proceed<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">finally<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            sample<span class=\"token punctuation\">.<\/span><span class=\"token function\">stop<\/span><span class=\"token punctuation\">(<\/span>meterRegistry<span class=\"token punctuation\">.<\/span><span class=\"token function\">timer<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;brotli.compression.time&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token annotation punctuation\">&#064;Slf4j<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">BrotliCompressionLogger<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">logCompressionResult<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">long<\/span> originalSize<span class=\"token punctuation\">,<\/span><br \/>\n                                   <span class=\"token keyword\">long<\/span> compressedSize<span class=\"token punctuation\">,<\/span><br \/>\n                                   <span class=\"token class-name\">String<\/span> uri<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">double<\/span> ratio <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">double<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">(<\/span>originalSize <span class=\"token operator\">&#8211;<\/span> compressedSize<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">\/<\/span> originalSize <span class=\"token operator\">*<\/span> <span class=\"token number\">100<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        log<span class=\"token punctuation\">.<\/span><span class=\"token function\">info<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;Compression Result for {}: Original Size&#061;{}, Compressed Size&#061;{}, &#034;<\/span> <span class=\"token operator\">&#043;<\/span><br \/>\n                <span class=\"token string\">&#034;Compression Ratio&#061;{:.2f}%&#034;<\/span><span class=\"token punctuation\">,<\/span><br \/>\n                uri<span class=\"token punctuation\">,<\/span> originalSize<span class=\"token punctuation\">,<\/span> compressedSize<span class=\"token punctuation\">,<\/span> ratio<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token comment\">\/\/ \u8bb0\u5f55\u8be6\u7ec6\u4fe1\u606f<\/span><br \/>\n        <span class=\"token keyword\">if<\/span><span class=\"token punctuation\">(<\/span>log<span class=\"token punctuation\">.<\/span><span class=\"token function\">isDebugEnabled<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            log<span class=\"token punctuation\">.<\/span><span class=\"token function\">debug<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;Detailed compression stats:&#034;<\/span> <span class=\"token operator\">&#043;<\/span><br \/>\n                    <span class=\"token string\">&#034;\\\\nURI: {}&#034;<\/span> <span class=\"token operator\">&#043;<\/span><br \/>\n                    <span class=\"token string\">&#034;\\\\nOriginal Size: {} bytes&#034;<\/span> <span class=\"token operator\">&#043;<\/span><br \/>\n                    <span class=\"token string\">&#034;\\\\nCompressed Size: {} bytes&#034;<\/span> <span class=\"token operator\">&#043;<\/span><br \/>\n                    <span class=\"token string\">&#034;\\\\nBytes Saved: {} bytes&#034;<\/span> <span class=\"token operator\">&#043;<\/span><br \/>\n                    <span class=\"token string\">&#034;\\\\nCompression Ratio: {:.2f}%&#034;<\/span><span class=\"token punctuation\">,<\/span><br \/>\n                    uri<span class=\"token punctuation\">,<\/span><br \/>\n                    originalSize<span class=\"token punctuation\">,<\/span><br \/>\n                    compressedSize<span class=\"token punctuation\">,<\/span><br \/>\n                    originalSize <span class=\"token operator\">&#8211;<\/span> compressedSize<span class=\"token punctuation\">,<\/span><br \/>\n                    ratio<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><\/p>\n<p>        <span class=\"token comment\">\/\/ \u538b\u7f29\u7387\u5f02\u5e38\u8b66\u544a<\/span><br \/>\n        <span class=\"token keyword\">if<\/span><span class=\"token punctuation\">(<\/span>ratio <span class=\"token operator\">&lt;<\/span> <span class=\"token number\">10<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            log<span class=\"token punctuation\">.<\/span><span class=\"token function\">warn<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;Low compression ratio ({:.2f}%) for {}&#034;<\/span><span class=\"token punctuation\">,<\/span> ratio<span class=\"token punctuation\">,<\/span> uri<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">logCompressionError<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span> uri<span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">Exception<\/span> e<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        log<span class=\"token punctuation\">.<\/span><span class=\"token function\">error<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;Compression failed for {}: {}&#034;<\/span><span class=\"token punctuation\">,<\/span> uri<span class=\"token punctuation\">,<\/span> e<span class=\"token punctuation\">.<\/span><span class=\"token function\">getMessage<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token keyword\">if<\/span><span class=\"token punctuation\">(<\/span>log<span class=\"token punctuation\">.<\/span><span class=\"token function\">isDebugEnabled<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            log<span class=\"token punctuation\">.<\/span><span class=\"token function\">debug<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;Compression error stack trace:&#034;<\/span><span class=\"token punctuation\">,<\/span> e<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">logCompressionMetrics<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Map<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token class-name\">String<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">Object<\/span><span class=\"token punctuation\">&gt;<\/span><\/span> metrics<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        log<span class=\"token punctuation\">.<\/span><span class=\"token function\">info<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;Compression Metrics Summary:&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        metrics<span class=\"token punctuation\">.<\/span><span class=\"token function\">forEach<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span>key<span class=\"token punctuation\">,<\/span> value<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">-&gt;<\/span><br \/>\n            log<span class=\"token punctuation\">.<\/span><span class=\"token function\">info<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;  {}: {}&#034;<\/span><span class=\"token punctuation\">,<\/span> key<span class=\"token punctuation\">,<\/span> value<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">logCompressionThreshold<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">long<\/span> threshold<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        log<span class=\"token punctuation\">.<\/span><span class=\"token function\">info<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;Compression threshold set to {} bytes&#034;<\/span><span class=\"token punctuation\">,<\/span> threshold<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">logSkippedCompression<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span> uri<span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">String<\/span> reason<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">if<\/span><span class=\"token punctuation\">(<\/span>log<span class=\"token punctuation\">.<\/span><span class=\"token function\">isDebugEnabled<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            log<span class=\"token punctuation\">.<\/span><span class=\"token function\">debug<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;Skipped compression for {}: {}&#034;<\/span><span class=\"token punctuation\">,<\/span> uri<span class=\"token punctuation\">,<\/span> reason<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u6027\u80fd\u76d1\u63a7\u65e5\u5fd7<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">logCompressionPerformance<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span> uri<span class=\"token punctuation\">,<\/span><br \/>\n                                        <span class=\"token keyword\">long<\/span> processingTime<span class=\"token punctuation\">,<\/span><br \/>\n                                        <span class=\"token keyword\">double<\/span> cpuUsage<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        log<span class=\"token punctuation\">.<\/span><span class=\"token function\">info<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;Compression Performance &#8211; URI: {}, Time: {}ms, CPU: {:.1f}%&#034;<\/span><span class=\"token punctuation\">,<\/span><br \/>\n                uri<span class=\"token punctuation\">,<\/span> processingTime<span class=\"token punctuation\">,<\/span> cpuUsage<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token comment\">\/\/ \u6027\u80fd\u8b66\u544a<\/span><br \/>\n        <span class=\"token keyword\">if<\/span><span class=\"token punctuation\">(<\/span>processingTime <span class=\"token operator\">&gt;<\/span> <span class=\"token number\">1000<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span> <span class=\"token comment\">\/\/ 1\u79d2<\/span><br \/>\n            log<span class=\"token punctuation\">.<\/span><span class=\"token function\">warn<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;Slow compression detected for {}: {}ms&#034;<\/span><span class=\"token punctuation\">,<\/span><br \/>\n                    uri<span class=\"token punctuation\">,<\/span> processingTime<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u8d44\u6e90\u4f7f\u7528\u60c5\u51b5\u65e5\u5fd7<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">logResourceUsage<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">long<\/span> memoryUsed<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">int<\/span> activeThreads<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">if<\/span><span class=\"token punctuation\">(<\/span>log<span class=\"token punctuation\">.<\/span><span class=\"token function\">isDebugEnabled<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            log<span class=\"token punctuation\">.<\/span><span class=\"token function\">debug<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;Compression Resource Usage &#8211; Memory: {}MB, Threads: {}&#034;<\/span><span class=\"token punctuation\">,<\/span><br \/>\n                    memoryUsed <span class=\"token operator\">\/<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token number\">1024<\/span> <span class=\"token operator\">*<\/span> <span class=\"token number\">1024<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> activeThreads<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u6279\u91cf\u538b\u7f29\u65e5\u5fd7<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">logBatchCompressionResult<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> totalFiles<span class=\"token punctuation\">,<\/span><br \/>\n                                        <span class=\"token keyword\">long<\/span> totalOriginalSize<span class=\"token punctuation\">,<\/span><br \/>\n                                        <span class=\"token keyword\">long<\/span> totalCompressedSize<span class=\"token punctuation\">,<\/span><br \/>\n                                        <span class=\"token keyword\">long<\/span> totalTime<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">double<\/span> avgRatio <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">double<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">(<\/span>totalOriginalSize <span class=\"token operator\">&#8211;<\/span> totalCompressedSize<span class=\"token punctuation\">)<\/span><br \/>\n                         <span class=\"token operator\">\/<\/span> totalOriginalSize <span class=\"token operator\">*<\/span> <span class=\"token number\">100<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        log<span class=\"token punctuation\">.<\/span><span class=\"token function\">info<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;Batch Compression Complete:&#034;<\/span> <span class=\"token operator\">&#043;<\/span><br \/>\n                <span class=\"token string\">&#034;\\\\nTotal Files: {}&#034;<\/span> <span class=\"token operator\">&#043;<\/span><br \/>\n                <span class=\"token string\">&#034;\\\\nTotal Original Size: {} bytes&#034;<\/span> <span class=\"token operator\">&#043;<\/span><br \/>\n                <span class=\"token string\">&#034;\\\\nTotal Compressed Size: {} bytes&#034;<\/span> <span class=\"token operator\">&#043;<\/span><br \/>\n                <span class=\"token string\">&#034;\\\\nAverage Compression Ratio: {:.2f}%&#034;<\/span> <span class=\"token operator\">&#043;<\/span><br \/>\n                <span class=\"token string\">&#034;\\\\nTotal Processing Time: {}ms&#034;<\/span><span class=\"token punctuation\">,<\/span><br \/>\n                totalFiles<span class=\"token punctuation\">,<\/span><br \/>\n                totalOriginalSize<span class=\"token punctuation\">,<\/span><br \/>\n                totalCompressedSize<span class=\"token punctuation\">,<\/span><br \/>\n                avgRatio<span class=\"token punctuation\">,<\/span><br \/>\n                totalTime<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u914d\u7f6e\u53d8\u66f4\u65e5\u5fd7<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">logConfigurationChange<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span> parameter<span class=\"token punctuation\">,<\/span><br \/>\n                                     <span class=\"token class-name\">Object<\/span> oldValue<span class=\"token punctuation\">,<\/span><br \/>\n                                     <span class=\"token class-name\">Object<\/span> newValue<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        log<span class=\"token punctuation\">.<\/span><span class=\"token function\">info<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;Compression configuration changed &#8211; {}: {} -&gt; {}&#034;<\/span><span class=\"token punctuation\">,<\/span><br \/>\n                parameter<span class=\"token punctuation\">,<\/span> oldValue<span class=\"token punctuation\">,<\/span> newValue<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u5065\u5eb7\u68c0\u67e5\u65e5\u5fd7<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">logHealthCheck<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">boolean<\/span> healthy<span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">String<\/span> details<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">if<\/span><span class=\"token punctuation\">(<\/span>healthy<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            log<span class=\"token punctuation\">.<\/span><span class=\"token function\">info<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;Compression health check passed: {}&#034;<\/span><span class=\"token punctuation\">,<\/span> details<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">else<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            log<span class=\"token punctuation\">.<\/span><span class=\"token function\">warn<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;Compression health check failed: {}&#034;<\/span><span class=\"token punctuation\">,<\/span> details<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h2>\u4e8c\u3001Tomcat\u4e2d\u7684Deflate\u538b\u7f29\u914d\u7f6e\u8be6\u89e3<\/h2>\n<h3>\u4e00\u3001\u57fa\u7840\u914d\u7f6e<\/h3>\n<h4>1. server.xml\u914d\u7f6e<\/h4>\n<p><span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>Connector<\/span> <span class=\"token attr-name\">port<\/span><span class=\"token attr-value\"><span class=\"token punctuation attr-equals\">&#061;<\/span><span class=\"token punctuation\">&#034;<\/span>8080<span class=\"token punctuation\">&#034;<\/span><\/span> <span class=\"token attr-name\">protocol<\/span><span class=\"token attr-value\"><span class=\"token punctuation attr-equals\">&#061;<\/span><span class=\"token punctuation\">&#034;<\/span>HTTP\/1.1<span class=\"token punctuation\">&#034;<\/span><\/span><br \/>\n           <span class=\"token attr-name\">connectionTimeout<\/span><span class=\"token attr-value\"><span class=\"token punctuation attr-equals\">&#061;<\/span><span class=\"token punctuation\">&#034;<\/span>20000<span class=\"token punctuation\">&#034;<\/span><\/span><br \/>\n           <span class=\"token attr-name\">redirectPort<\/span><span class=\"token attr-value\"><span class=\"token punctuation attr-equals\">&#061;<\/span><span class=\"token punctuation\">&#034;<\/span>8443<span class=\"token punctuation\">&#034;<\/span><\/span><br \/>\n           <span class=\"token attr-name\">compression<\/span><span class=\"token attr-value\"><span class=\"token punctuation attr-equals\">&#061;<\/span><span class=\"token punctuation\">&#034;<\/span>on<span class=\"token punctuation\">&#034;<\/span><\/span><br \/>\n           <span class=\"token attr-name\">compressionMinSize<\/span><span class=\"token attr-value\"><span class=\"token punctuation attr-equals\">&#061;<\/span><span class=\"token punctuation\">&#034;<\/span>2048<span class=\"token punctuation\">&#034;<\/span><\/span><br \/>\n           <span class=\"token attr-name\">noCompressionUserAgents<\/span><span class=\"token attr-value\"><span class=\"token punctuation attr-equals\">&#061;<\/span><span class=\"token punctuation\">&#034;<\/span>gozilla, traviata<span class=\"token punctuation\">&#034;<\/span><\/span><br \/>\n           <span class=\"token attr-name\">compressibleMimeType<\/span><span class=\"token attr-value\"><span class=\"token punctuation attr-equals\">&#061;<\/span><span class=\"token punctuation\">&#034;<\/span>text\/html,text\/xml,text\/plain,text\/css,<br \/>\n                                text\/javascript,application\/javascript,<br \/>\n                                application\/json,application\/xml<span class=\"token punctuation\">&#034;<\/span><\/span><span class=\"token punctuation\">\/&gt;<\/span><\/span><\/p>\n<h4>2. web.xml\u914d\u7f6e<\/h4>\n<p><span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>web-app<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n    <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>filter<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n        <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>filter-name<\/span><span class=\"token punctuation\">&gt;<\/span><\/span>compressionFilter<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>filter-name<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n        <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>filter-class<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n            org.apache.catalina.filters.CompressionFilter<br \/>\n        <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>filter-class<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n        <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>init-param<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n            <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>param-name<\/span><span class=\"token punctuation\">&gt;<\/span><\/span>compressionLevel<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>param-name<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n            <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>param-value<\/span><span class=\"token punctuation\">&gt;<\/span><\/span>6<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>param-value<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n        <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>init-param<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n        <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>init-param<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n            <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>param-name<\/span><span class=\"token punctuation\">&gt;<\/span><\/span>compressionMinSize<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>param-name<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n            <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>param-value<\/span><span class=\"token punctuation\">&gt;<\/span><\/span>2048<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>param-value<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n        <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>init-param<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n    <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>filter<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><\/p>\n<p>    <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>filter-mapping<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n        <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>filter-name<\/span><span class=\"token punctuation\">&gt;<\/span><\/span>compressionFilter<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>filter-name<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n        <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>url-pattern<\/span><span class=\"token punctuation\">&gt;<\/span><\/span>\/*<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>url-pattern<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n    <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>filter-mapping<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>web-app<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><\/p>\n<h3>\u4e8c\u3001Spring Boot\u96c6\u6210<\/h3>\n<h4>1. application.properties\u914d\u7f6e<\/h4>\n<p># \u542f\u7528\u538b\u7f29<br \/>\nserver.compression.enabled&#061;true<\/p>\n<p># \u538b\u7f29\u6700\u5c0f\u9608\u503c<br \/>\nserver.compression.min-response-size&#061;2048<\/p>\n<p># \u6307\u5b9a\u538b\u7f29MIME\u7c7b\u578b<br \/>\nserver.compression.mime-types&#061;text\/html,text\/xml,text\/plain,text\/css,\\\\<br \/>\n                            text\/javascript,application\/javascript,\\\\<br \/>\n                            application\/json,application\/xml<\/p>\n<p># \u538b\u7f29\u7ea7\u522b<br \/>\nserver.compression.deflate.level&#061;6<\/p>\n<h4>2. Java\u914d\u7f6e\u7c7b<\/h4>\n<p><span class=\"token annotation punctuation\">&#064;Configuration<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">CompressionConfig<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>    <span class=\"token annotation punctuation\">&#064;Bean<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token class-name\">FilterRegistrationBean<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token class-name\">CompressionFilter<\/span><span class=\"token punctuation\">&gt;<\/span><\/span> <span class=\"token function\">compressionFilter<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token class-name\">FilterRegistrationBean<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token class-name\">CompressionFilter<\/span><span class=\"token punctuation\">&gt;<\/span><\/span> registrationBean <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">FilterRegistrationBean<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token class-name\">CompressionFilter<\/span> compressionFilter <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">CompressionFilter<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        registrationBean<span class=\"token punctuation\">.<\/span><span class=\"token function\">setFilter<\/span><span class=\"token punctuation\">(<\/span>compressionFilter<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token comment\">\/\/ \u914d\u7f6e\u53c2\u6570<\/span><br \/>\n        <span class=\"token class-name\">Map<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token class-name\">String<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">String<\/span><span class=\"token punctuation\">&gt;<\/span><\/span> params <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">HashMap<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        params<span class=\"token punctuation\">.<\/span><span class=\"token function\">put<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;compressionLevel&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;6&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        params<span class=\"token punctuation\">.<\/span><span class=\"token function\">put<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;compressionMinSize&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;2048&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        params<span class=\"token punctuation\">.<\/span><span class=\"token function\">put<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;compressionMimeTypes&#034;<\/span><span class=\"token punctuation\">,<\/span><br \/>\n            <span class=\"token string\">&#034;text\/html,text\/xml,text\/plain,text\/css,&#034;<\/span> <span class=\"token operator\">&#043;<\/span><br \/>\n            <span class=\"token string\">&#034;text\/javascript,application\/javascript,&#034;<\/span> <span class=\"token operator\">&#043;<\/span><br \/>\n            <span class=\"token string\">&#034;application\/json,application\/xml&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        registrationBean<span class=\"token punctuation\">.<\/span><span class=\"token function\">setInitParameters<\/span><span class=\"token punctuation\">(<\/span>params<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        registrationBean<span class=\"token punctuation\">.<\/span><span class=\"token function\">addUrlPatterns<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\/*&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token keyword\">return<\/span> registrationBean<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h3>\u4e09\u3001\u9ad8\u7ea7\u914d\u7f6e<\/h3>\n<h4>1. \u81ea\u5b9a\u4e49\u538b\u7f29\u8fc7\u6ee4\u5668<\/h4>\n<p><span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">CustomDeflateFilter<\/span> <span class=\"token keyword\">extends<\/span> <span class=\"token class-name\">OncePerRequestFilter<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>    <span class=\"token keyword\">private<\/span> <span class=\"token keyword\">int<\/span> compressionLevel <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">6<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token keyword\">int<\/span> compressionMinSize <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">2048<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token class-name\">Set<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token class-name\">String<\/span><span class=\"token punctuation\">&gt;<\/span><\/span> compressibleMimeTypes<span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token annotation punctuation\">&#064;Override<\/span><br \/>\n    <span class=\"token keyword\">protected<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">doFilterInternal<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">HttpServletRequest<\/span> request<span class=\"token punctuation\">,<\/span><br \/>\n                                  <span class=\"token class-name\">HttpServletResponse<\/span> response<span class=\"token punctuation\">,<\/span><br \/>\n                                  <span class=\"token class-name\">FilterChain<\/span> filterChain<span class=\"token punctuation\">)<\/span> <span class=\"token keyword\">throws<\/span> <span class=\"token class-name\">ServletException<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">IOException<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token function\">shouldCompress<\/span><span class=\"token punctuation\">(<\/span>request<span class=\"token punctuation\">,<\/span> response<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token class-name\">DeflaterOutputStream<\/span> deflater <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">null<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token keyword\">try<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n                deflater <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">DeflaterOutputStream<\/span><span class=\"token punctuation\">(<\/span><br \/>\n                    response<span class=\"token punctuation\">.<\/span><span class=\"token function\">getOutputStream<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span><br \/>\n                    <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Deflater<\/span><span class=\"token punctuation\">(<\/span>compressionLevel<span class=\"token punctuation\">)<\/span><br \/>\n                <span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>                response<span class=\"token punctuation\">.<\/span><span class=\"token function\">setHeader<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;Content-Encoding&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;deflate&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                filterChain<span class=\"token punctuation\">.<\/span><span class=\"token function\">doFilter<\/span><span class=\"token punctuation\">(<\/span>request<span class=\"token punctuation\">,<\/span><br \/>\n                    <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">CompressionResponseWrapper<\/span><span class=\"token punctuation\">(<\/span>response<span class=\"token punctuation\">,<\/span> deflater<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>            <span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">finally<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n                <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>deflater <span class=\"token operator\">!&#061;<\/span> <span class=\"token keyword\">null<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n                    deflater<span class=\"token punctuation\">.<\/span><span class=\"token function\">close<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                <span class=\"token punctuation\">}<\/span><br \/>\n            <span class=\"token punctuation\">}<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">else<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            filterChain<span class=\"token punctuation\">.<\/span><span class=\"token function\">doFilter<\/span><span class=\"token punctuation\">(<\/span>request<span class=\"token punctuation\">,<\/span> response<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token keyword\">private<\/span> <span class=\"token keyword\">boolean<\/span> <span class=\"token function\">shouldCompress<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">HttpServletRequest<\/span> request<span class=\"token punctuation\">,<\/span><br \/>\n                                 <span class=\"token class-name\">HttpServletResponse<\/span> response<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token class-name\">String<\/span> contentType <span class=\"token operator\">&#061;<\/span> response<span class=\"token punctuation\">.<\/span><span class=\"token function\">getContentType<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token class-name\">String<\/span> acceptEncoding <span class=\"token operator\">&#061;<\/span> request<span class=\"token punctuation\">.<\/span><span class=\"token function\">getHeader<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;Accept-Encoding&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token keyword\">return<\/span> acceptEncoding <span class=\"token operator\">!&#061;<\/span> <span class=\"token keyword\">null<\/span> <span class=\"token operator\">&amp;&amp;<\/span><br \/>\n               acceptEncoding<span class=\"token punctuation\">.<\/span><span class=\"token function\">contains<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;deflate&#034;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&amp;&amp;<\/span><br \/>\n               contentType <span class=\"token operator\">!&#061;<\/span> <span class=\"token keyword\">null<\/span> <span class=\"token operator\">&amp;&amp;<\/span><br \/>\n               compressibleMimeTypes<span class=\"token punctuation\">.<\/span><span class=\"token function\">contains<\/span><span class=\"token punctuation\">(<\/span>contentType<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h4>2. \u54cd\u5e94\u5305\u88c5\u5668<\/h4>\n<p><span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">CompressionResponseWrapper<\/span> <span class=\"token keyword\">extends<\/span> <span class=\"token class-name\">HttpServletResponseWrapper<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>    <span class=\"token keyword\">private<\/span> <span class=\"token keyword\">final<\/span> <span class=\"token class-name\">DeflaterOutputStream<\/span> deflater<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token class-name\">ServletOutputStream<\/span> outputStream<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token class-name\">PrintWriter<\/span> writer<span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token keyword\">public<\/span> <span class=\"token class-name\">CompressionResponseWrapper<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">HttpServletResponse<\/span> response<span class=\"token punctuation\">,<\/span><br \/>\n                                    <span class=\"token class-name\">DeflaterOutputStream<\/span> deflater<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">super<\/span><span class=\"token punctuation\">(<\/span>response<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>deflater <span class=\"token operator\">&#061;<\/span> deflater<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token annotation punctuation\">&#064;Override<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token class-name\">ServletOutputStream<\/span> <span class=\"token function\">getOutputStream<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token keyword\">throws<\/span> <span class=\"token class-name\">IOException<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>writer <span class=\"token operator\">!&#061;<\/span> <span class=\"token keyword\">null<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token keyword\">throw<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">IllegalStateException<\/span><span class=\"token punctuation\">(<\/span><br \/>\n                <span class=\"token string\">&#034;getWriter() has already been called on this response.&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><\/p>\n<p>        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>outputStream <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token keyword\">null<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            outputStream <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">CompressionOutputStream<\/span><span class=\"token punctuation\">(<\/span>deflater<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> outputStream<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token annotation punctuation\">&#064;Override<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token class-name\">PrintWriter<\/span> <span class=\"token function\">getWriter<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token keyword\">throws<\/span> <span class=\"token class-name\">IOException<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>outputStream <span class=\"token operator\">!&#061;<\/span> <span class=\"token keyword\">null<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token keyword\">throw<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">IllegalStateException<\/span><span class=\"token punctuation\">(<\/span><br \/>\n                <span class=\"token string\">&#034;getOutputStream() has already been called on this response.&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><\/p>\n<p>        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>writer <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token keyword\">null<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            writer <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">PrintWriter<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">new<\/span> <span class=\"token class-name\">OutputStreamWriter<\/span><span class=\"token punctuation\">(<\/span><br \/>\n                <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">DeflaterOutputStream<\/span><span class=\"token punctuation\">(<\/span><span class=\"token function\">getResponse<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">getOutputStream<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span><br \/>\n                <span class=\"token function\">getCharacterEncoding<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> writer<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h3>\u56db\u3001\u6027\u80fd\u4f18\u5316<\/h3>\n<h4>1. \u52a8\u6001\u538b\u7f29\u7ea7\u522b<\/h4>\n<p><span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">AdaptiveCompressionFilter<\/span> <span class=\"token keyword\">extends<\/span> <span class=\"token class-name\">OncePerRequestFilter<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>    <span class=\"token annotation punctuation\">&#064;Override<\/span><br \/>\n    <span class=\"token keyword\">protected<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">doFilterInternal<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">HttpServletRequest<\/span> request<span class=\"token punctuation\">,<\/span><br \/>\n                                  <span class=\"token class-name\">HttpServletResponse<\/span> response<span class=\"token punctuation\">,<\/span><br \/>\n                                  <span class=\"token class-name\">FilterChain<\/span> filterChain<span class=\"token punctuation\">)<\/span> <span class=\"token keyword\">throws<\/span> <span class=\"token class-name\">ServletException<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">IOException<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>        <span class=\"token keyword\">int<\/span> level <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">determineCompressionLevel<\/span><span class=\"token punctuation\">(<\/span>request<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token class-name\">Deflater<\/span> deflater <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Deflater<\/span><span class=\"token punctuation\">(<\/span>level<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token keyword\">try<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token comment\">\/\/ \u5e94\u7528\u538b\u7f29<\/span><br \/>\n            <span class=\"token function\">compress<\/span><span class=\"token punctuation\">(<\/span>request<span class=\"token punctuation\">,<\/span> response<span class=\"token punctuation\">,<\/span> filterChain<span class=\"token punctuation\">,<\/span> deflater<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">finally<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            deflater<span class=\"token punctuation\">.<\/span><span class=\"token function\">end<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token keyword\">private<\/span> <span class=\"token keyword\">int<\/span> <span class=\"token function\">determineCompressionLevel<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">HttpServletRequest<\/span> request<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">long<\/span> contentLength <span class=\"token operator\">&#061;<\/span> request<span class=\"token punctuation\">.<\/span><span class=\"token function\">getContentLengthLong<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>contentLength <span class=\"token operator\">&lt;<\/span> <span class=\"token number\">10<\/span> <span class=\"token operator\">*<\/span> <span class=\"token number\">1024<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span> <span class=\"token comment\">\/\/ 10KB<\/span><br \/>\n            <span class=\"token keyword\">return<\/span> <span class=\"token class-name\">Deflater<\/span><span class=\"token punctuation\">.<\/span>BEST_SPEED<span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">else<\/span> <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>contentLength <span class=\"token operator\">&lt;<\/span> <span class=\"token number\">100<\/span> <span class=\"token operator\">*<\/span> <span class=\"token number\">1024<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span> <span class=\"token comment\">\/\/ 100KB<\/span><br \/>\n            <span class=\"token keyword\">return<\/span> <span class=\"token number\">6<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">else<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token keyword\">return<\/span> <span class=\"token class-name\">Deflater<\/span><span class=\"token punctuation\">.<\/span>BEST_COMPRESSION<span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h4>2. \u7f13\u5b58\u652f\u6301<\/h4>\n<p><span class=\"token annotation punctuation\">&#064;Configuration<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">CompressionCacheConfig<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>    <span class=\"token annotation punctuation\">&#064;Bean<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token class-name\">Cache<\/span> <span class=\"token function\">compressionCache<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> <span class=\"token class-name\">CacheBuilder<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">newBuilder<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n            <span class=\"token punctuation\">.<\/span><span class=\"token function\">maximumSize<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">1000<\/span><span class=\"token punctuation\">)<\/span><br \/>\n            <span class=\"token punctuation\">.<\/span><span class=\"token function\">expireAfterWrite<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">TimeUnit<\/span><span class=\"token punctuation\">.<\/span>HOURS<span class=\"token punctuation\">)<\/span><br \/>\n            <span class=\"token punctuation\">.<\/span><span class=\"token function\">build<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token annotation punctuation\">&#064;Bean<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token class-name\">CompressionFilter<\/span> <span class=\"token function\">cachedCompressionFilter<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Cache<\/span> cache<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">CachedCompressionFilter<\/span><span class=\"token punctuation\">(<\/span>cache<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h3>\u4e94\u3001\u76d1\u63a7\u548c\u65e5\u5fd7<\/h3>\n<p><span class=\"token annotation punctuation\">&#064;Component<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">CompressionMetrics<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>    <span class=\"token keyword\">private<\/span> <span class=\"token keyword\">final<\/span> <span class=\"token class-name\">MeterRegistry<\/span> registry<span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token keyword\">public<\/span> <span class=\"token class-name\">CompressionMetrics<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">MeterRegistry<\/span> registry<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>registry <span class=\"token operator\">&#061;<\/span> registry<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">recordCompression<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">long<\/span> originalSize<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">long<\/span> compressedSize<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">double<\/span> ratio <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">double<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">(<\/span>originalSize <span class=\"token operator\">&#8211;<\/span> compressedSize<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">\/<\/span> originalSize<span class=\"token punctuation\">;<\/span><\/p>\n<p>        registry<span class=\"token punctuation\">.<\/span><span class=\"token function\">gauge<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;compression.ratio&#034;<\/span><span class=\"token punctuation\">,<\/span> ratio<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        registry<span class=\"token punctuation\">.<\/span><span class=\"token function\">counter<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;compression.bytes.saved&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n               <span class=\"token punctuation\">.<\/span><span class=\"token function\">increment<\/span><span class=\"token punctuation\">(<\/span>originalSize <span class=\"token operator\">&#8211;<\/span> compressedSize<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        registry<span class=\"token punctuation\">.<\/span><span class=\"token function\">counter<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;compression.total.requests&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">increment<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h4>2. \u65e5\u5fd7\u8bb0\u5f55<\/h4>\n<p><span class=\"token annotation punctuation\">&#064;Slf4j<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">CompressionLogger<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">logCompressionStats<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span> uri<span class=\"token punctuation\">,<\/span><br \/>\n                                  <span class=\"token keyword\">long<\/span> originalSize<span class=\"token punctuation\">,<\/span><br \/>\n                                  <span class=\"token keyword\">long<\/span> compressedSize<span class=\"token punctuation\">,<\/span><br \/>\n                                  <span class=\"token keyword\">long<\/span> compressionTime<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">double<\/span> ratio <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">double<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">(<\/span>originalSize <span class=\"token operator\">&#8211;<\/span> compressedSize<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">\/<\/span> originalSize <span class=\"token operator\">*<\/span> <span class=\"token number\">100<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        log<span class=\"token punctuation\">.<\/span><span class=\"token function\">info<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;Compression stats for {}: Original&#061;{}, Compressed&#061;{}, &#034;<\/span> <span class=\"token operator\">&#043;<\/span><br \/>\n                <span class=\"token string\">&#034;Ratio&#061;{:.2f}%, Time&#061;{}ms&#034;<\/span><span class=\"token punctuation\">,<\/span><br \/>\n                uri<span class=\"token punctuation\">,<\/span> originalSize<span class=\"token punctuation\">,<\/span> compressedSize<span class=\"token punctuation\">,<\/span> ratio<span class=\"token punctuation\">,<\/span> compressionTime<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h3>\u516d\u3001\u6700\u4f73\u5b9e\u8df5\u548c\u4f18\u5316\u5efa\u8bae<\/h3>\n<h4>1. \u538b\u7f29\u7b56\u7565\u914d\u7f6e<\/h4>\n<p><span class=\"token annotation punctuation\">&#064;Configuration<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">OptimizedCompressionConfig<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>    <span class=\"token annotation punctuation\">&#064;Bean<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token class-name\">CompressionFilter<\/span> <span class=\"token function\">optimizedCompressionFilter<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">CompressionFilter<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token annotation punctuation\">&#064;Override<\/span><br \/>\n            <span class=\"token keyword\">protected<\/span> <span class=\"token keyword\">boolean<\/span> <span class=\"token function\">shouldCompress<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">HttpServletRequest<\/span> request<span class=\"token punctuation\">,<\/span><br \/>\n                                          <span class=\"token class-name\">HttpServletResponse<\/span> response<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n                <span class=\"token comment\">\/\/ \u68c0\u67e5\u5185\u5bb9\u7c7b\u578b<\/span><br \/>\n                <span class=\"token class-name\">String<\/span> contentType <span class=\"token operator\">&#061;<\/span> response<span class=\"token punctuation\">.<\/span><span class=\"token function\">getContentType<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>contentType <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token keyword\">null<\/span> <span class=\"token operator\">||<\/span> <span class=\"token operator\">!<\/span><span class=\"token function\">isCompressibleContentType<\/span><span class=\"token punctuation\">(<\/span>contentType<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n                    <span class=\"token keyword\">return<\/span> <span class=\"token boolean\">false<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                <span class=\"token punctuation\">}<\/span><\/p>\n<p>                <span class=\"token comment\">\/\/ \u68c0\u67e5\u5185\u5bb9\u957f\u5ea6<\/span><br \/>\n                <span class=\"token keyword\">long<\/span> contentLength <span class=\"token operator\">&#061;<\/span> response<span class=\"token punctuation\">.<\/span><span class=\"token function\">getContentLengthLong<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>contentLength <span class=\"token operator\">&lt;<\/span> <span class=\"token function\">getMinCompressSize<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n                    <span class=\"token keyword\">return<\/span> <span class=\"token boolean\">false<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                <span class=\"token punctuation\">}<\/span><\/p>\n<p>                <span class=\"token comment\">\/\/ \u68c0\u67e5\u5ba2\u6237\u7aef\u652f\u6301<\/span><br \/>\n                <span class=\"token class-name\">String<\/span> acceptEncoding <span class=\"token operator\">&#061;<\/span> request<span class=\"token punctuation\">.<\/span><span class=\"token function\">getHeader<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;Accept-Encoding&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                <span class=\"token keyword\">return<\/span> acceptEncoding <span class=\"token operator\">!&#061;<\/span> <span class=\"token keyword\">null<\/span> <span class=\"token operator\">&amp;&amp;<\/span> acceptEncoding<span class=\"token punctuation\">.<\/span><span class=\"token function\">contains<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;deflate&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token punctuation\">}<\/span><\/p>\n<p>            <span class=\"token keyword\">private<\/span> <span class=\"token keyword\">boolean<\/span> <span class=\"token function\">isCompressibleContentType<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span> contentType<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n                <span class=\"token keyword\">return<\/span> contentType<span class=\"token punctuation\">.<\/span><span class=\"token function\">startsWith<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;text\/&#034;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">||<\/span><br \/>\n                       contentType<span class=\"token punctuation\">.<\/span><span class=\"token function\">contains<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;javascript&#034;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">||<\/span><br \/>\n                       contentType<span class=\"token punctuation\">.<\/span><span class=\"token function\">contains<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;json&#034;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">||<\/span><br \/>\n                       contentType<span class=\"token punctuation\">.<\/span><span class=\"token function\">contains<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;xml&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token punctuation\">}<\/span><\/p>\n<p>            <span class=\"token keyword\">private<\/span> <span class=\"token keyword\">int<\/span> <span class=\"token function\">getMinCompressSize<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n                <span class=\"token keyword\">return<\/span> <span class=\"token number\">2048<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ 2KB<\/span><br \/>\n            <span class=\"token punctuation\">}<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h4>2. \u8d44\u6e90\u4f18\u5316<\/h4>\n<p><span class=\"token annotation punctuation\">&#064;Configuration<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">ResourceCompressionConfig<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>    <span class=\"token annotation punctuation\">&#064;Bean<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token class-name\">ResourceFilter<\/span> <span class=\"token function\">resourceCompressionFilter<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">ResourceFilter<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token annotation punctuation\">&#064;Override<\/span><br \/>\n            <span class=\"token keyword\">protected<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">processResource<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">HttpServletRequest<\/span> request<span class=\"token punctuation\">,<\/span><br \/>\n                                        <span class=\"token class-name\">HttpServletResponse<\/span> response<span class=\"token punctuation\">,<\/span><br \/>\n                                        <span class=\"token class-name\">Resource<\/span> resource<span class=\"token punctuation\">)<\/span> <span class=\"token keyword\">throws<\/span> <span class=\"token class-name\">IOException<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>                <span class=\"token comment\">\/\/ \u68c0\u67e5\u662f\u5426\u5df2\u7ecf\u6709\u9884\u538b\u7f29\u7248\u672c<\/span><br \/>\n                <span class=\"token class-name\">Resource<\/span> compressedResource <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">findPreCompressedResource<\/span><span class=\"token punctuation\">(<\/span>resource<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>compressedResource <span class=\"token operator\">!&#061;<\/span> <span class=\"token keyword\">null<\/span> <span class=\"token operator\">&amp;&amp;<\/span> compressedResource<span class=\"token punctuation\">.<\/span><span class=\"token function\">exists<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n                    <span class=\"token function\">servePreCompressedResource<\/span><span class=\"token punctuation\">(<\/span>response<span class=\"token punctuation\">,<\/span> compressedResource<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                    <span class=\"token keyword\">return<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                <span class=\"token punctuation\">}<\/span><\/p>\n<p>                <span class=\"token comment\">\/\/ \u52a8\u6001\u538b\u7f29<\/span><br \/>\n                <span class=\"token function\">compressAndServeResource<\/span><span class=\"token punctuation\">(<\/span>response<span class=\"token punctuation\">,<\/span> resource<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token punctuation\">}<\/span><\/p>\n<p>            <span class=\"token keyword\">private<\/span> <span class=\"token class-name\">Resource<\/span> <span class=\"token function\">findPreCompressedResource<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Resource<\/span> original<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n                <span class=\"token class-name\">String<\/span> path <span class=\"token operator\">&#061;<\/span> original<span class=\"token punctuation\">.<\/span><span class=\"token function\">getFilename<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#043;<\/span> <span class=\"token string\">&#034;.deflate&#034;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                <span class=\"token keyword\">return<\/span> resourceLoader<span class=\"token punctuation\">.<\/span><span class=\"token function\">getResource<\/span><span class=\"token punctuation\">(<\/span>path<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token punctuation\">}<\/span><\/p>\n<p>            <span class=\"token keyword\">private<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">servePreCompressedResource<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">HttpServletResponse<\/span> response<span class=\"token punctuation\">,<\/span><br \/>\n                                                  <span class=\"token class-name\">Resource<\/span> compressed<span class=\"token punctuation\">)<\/span><br \/>\n                <span class=\"token keyword\">throws<\/span> <span class=\"token class-name\">IOException<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n                response<span class=\"token punctuation\">.<\/span><span class=\"token function\">setHeader<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;Content-Encoding&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;deflate&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                <span class=\"token class-name\">FileCopyUtils<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">copy<\/span><span class=\"token punctuation\">(<\/span>compressed<span class=\"token punctuation\">.<\/span><span class=\"token function\">getInputStream<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span><br \/>\n                                 response<span class=\"token punctuation\">.<\/span><span class=\"token function\">getOutputStream<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token punctuation\">}<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h4>3. \u6027\u80fd\u8c03\u4f18<\/h4>\n<p><span class=\"token annotation punctuation\">&#064;Configuration<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">PerformanceConfig<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>    <span class=\"token annotation punctuation\">&#064;Bean<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token class-name\">DeflaterPool<\/span> <span class=\"token function\">deflaterPool<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">DeflaterPool<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Runtime<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">getRuntime<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">availableProcessors<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span><br \/>\n                              <span class=\"token class-name\">Deflater<\/span><span class=\"token punctuation\">.<\/span>DEFAULT_COMPRESSION<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token annotation punctuation\">&#064;Bean<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token class-name\">CompressionExecutor<\/span> <span class=\"token function\">compressionExecutor<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">CompressionExecutor<\/span><span class=\"token punctuation\">(<\/span><span class=\"token function\">deflaterPool<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token keyword\">class<\/span> <span class=\"token class-name\">DeflaterPool<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token keyword\">final<\/span> <span class=\"token class-name\">BlockingQueue<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token class-name\">Deflater<\/span><span class=\"token punctuation\">&gt;<\/span><\/span> pool<span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token keyword\">public<\/span> <span class=\"token class-name\">DeflaterPool<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> poolSize<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">int<\/span> level<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        pool <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">ArrayBlockingQueue<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><span class=\"token punctuation\">(<\/span>poolSize<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token keyword\">for<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> i <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span> i <span class=\"token operator\">&lt;<\/span> poolSize<span class=\"token punctuation\">;<\/span> i<span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            pool<span class=\"token punctuation\">.<\/span><span class=\"token function\">offer<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Deflater<\/span><span class=\"token punctuation\">(<\/span>level<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token keyword\">public<\/span> <span class=\"token class-name\">Deflater<\/span> <span class=\"token function\">borrow<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token keyword\">throws<\/span> <span class=\"token class-name\">InterruptedException<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> pool<span class=\"token punctuation\">.<\/span><span class=\"token function\">take<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">release<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Deflater<\/span> deflater<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        deflater<span class=\"token punctuation\">.<\/span><span class=\"token function\">reset<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        pool<span class=\"token punctuation\">.<\/span><span class=\"token function\">offer<\/span><span class=\"token punctuation\">(<\/span>deflater<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h3>\u4e03\u3001\u5f02\u5e38\u5904\u7406<\/h3>\n<h4>1. \u538b\u7f29\u5f02\u5e38\u5904\u7406<\/h4>\n<p><span class=\"token annotation punctuation\">&#064;ControllerAdvice<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">CompressionExceptionHandler<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>    <span class=\"token annotation punctuation\">&#064;ExceptionHandler<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">CompressionException<\/span><span class=\"token punctuation\">.<\/span><span class=\"token keyword\">class<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token class-name\">ResponseEntity<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token class-name\">String<\/span><span class=\"token punctuation\">&gt;<\/span><\/span> <span class=\"token function\">handleCompressionException<\/span><span class=\"token punctuation\">(<\/span><br \/>\n            <span class=\"token class-name\">CompressionException<\/span> ex<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        log<span class=\"token punctuation\">.<\/span><span class=\"token function\">error<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;Compression failed&#034;<\/span><span class=\"token punctuation\">,<\/span> ex<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token comment\">\/\/ \u964d\u7ea7\u5904\u7406&#xff1a;\u53d1\u9001\u672a\u538b\u7f29\u7684\u54cd\u5e94<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> <span class=\"token class-name\">ResponseEntity<\/span><br \/>\n            <span class=\"token punctuation\">.<\/span><span class=\"token function\">status<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">HttpStatus<\/span><span class=\"token punctuation\">.<\/span>OK<span class=\"token punctuation\">)<\/span><br \/>\n            <span class=\"token punctuation\">.<\/span><span class=\"token function\">header<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;Content-Encoding&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;identity&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n            <span class=\"token punctuation\">.<\/span><span class=\"token function\">body<\/span><span class=\"token punctuation\">(<\/span>ex<span class=\"token punctuation\">.<\/span><span class=\"token function\">getOriginalContent<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h4>2. \u76d1\u63a7\u544a\u8b66<\/h4>\n<p><span class=\"token annotation punctuation\">&#064;Component<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">CompressionAlertService<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>    <span class=\"token keyword\">private<\/span> <span class=\"token keyword\">final<\/span> <span class=\"token class-name\">AlertManager<\/span> alertManager<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token keyword\">final<\/span> <span class=\"token class-name\">CompressionMetrics<\/span> metrics<span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">checkCompressionHealth<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token comment\">\/\/ \u68c0\u67e5\u538b\u7f29\u7387<\/span><br \/>\n        <span class=\"token keyword\">double<\/span> compressionRatio <span class=\"token operator\">&#061;<\/span> metrics<span class=\"token punctuation\">.<\/span><span class=\"token function\">getAverageCompressionRatio<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>compressionRatio <span class=\"token operator\">&lt;<\/span> <span class=\"token number\">0.2<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span> <span class=\"token comment\">\/\/ \u538b\u7f29\u7387\u4f4e\u4e8e20%<\/span><br \/>\n            alertManager<span class=\"token punctuation\">.<\/span><span class=\"token function\">sendAlert<\/span><span class=\"token punctuation\">(<\/span><br \/>\n                <span class=\"token string\">&#034;Low compression ratio detected: &#034;<\/span> <span class=\"token operator\">&#043;<\/span> compressionRatio<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><\/p>\n<p>        <span class=\"token comment\">\/\/ \u68c0\u67e5\u538b\u7f29\u5931\u8d25\u7387<\/span><br \/>\n        <span class=\"token keyword\">double<\/span> failureRate <span class=\"token operator\">&#061;<\/span> metrics<span class=\"token punctuation\">.<\/span><span class=\"token function\">getCompressionFailureRate<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>failureRate <span class=\"token operator\">&gt;<\/span> <span class=\"token number\">0.05<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span> <span class=\"token comment\">\/\/ \u5931\u8d25\u7387\u8d85\u8fc75%<\/span><br \/>\n            alertManager<span class=\"token punctuation\">.<\/span><span class=\"token function\">sendAlert<\/span><span class=\"token punctuation\">(<\/span><br \/>\n                <span class=\"token string\">&#034;High compression failure rate: &#034;<\/span> <span class=\"token operator\">&#043;<\/span> failureRate<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h2>Tomcat\u6574\u5408Zstd\u538b\u7f29\u7b97\u6cd5\u5b9e\u73b0\u6307\u5357<\/h2>\n<h3>\u4e00\u3001\u57fa\u7840\u914d\u7f6e<\/h3>\n<h4>1. Maven\u4f9d\u8d56<\/h4>\n<p><span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>dependencies<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n    <span class=\"token comment\">&lt;!&#8211; Zstd\u6838\u5fc3\u4f9d\u8d56 &#8211;&gt;<\/span><br \/>\n    <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>dependency<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n        <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>groupId<\/span><span class=\"token punctuation\">&gt;<\/span><\/span>com.github.luben<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>groupId<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n        <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>artifactId<\/span><span class=\"token punctuation\">&gt;<\/span><\/span>zstd-jni<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>artifactId<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n        <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>version<\/span><span class=\"token punctuation\">&gt;<\/span><\/span>1.5.5-5<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>version<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n    <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>dependency<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><\/p>\n<p>    <span class=\"token comment\">&lt;!&#8211; Tomcat\u4f9d\u8d56 &#8211;&gt;<\/span><br \/>\n    <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>dependency<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n        <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>groupId<\/span><span class=\"token punctuation\">&gt;<\/span><\/span>org.apache.tomcat.embed<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>groupId<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n        <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>artifactId<\/span><span class=\"token punctuation\">&gt;<\/span><\/span>tomcat-embed-core<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>artifactId<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n        <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>version<\/span><span class=\"token punctuation\">&gt;<\/span><\/span>${tomcat.version}<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>version<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n    <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>dependency<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>dependencies<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><\/p>\n<h4>2. server.xml\u914d\u7f6e<\/h4>\n<p><span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>Connector<\/span> <span class=\"token attr-name\">port<\/span><span class=\"token attr-value\"><span class=\"token punctuation attr-equals\">&#061;<\/span><span class=\"token punctuation\">&#034;<\/span>8080<span class=\"token punctuation\">&#034;<\/span><\/span> <span class=\"token attr-name\">protocol<\/span><span class=\"token attr-value\"><span class=\"token punctuation attr-equals\">&#061;<\/span><span class=\"token punctuation\">&#034;<\/span>HTTP\/1.1<span class=\"token punctuation\">&#034;<\/span><\/span><br \/>\n           <span class=\"token attr-name\">connectionTimeout<\/span><span class=\"token attr-value\"><span class=\"token punctuation attr-equals\">&#061;<\/span><span class=\"token punctuation\">&#034;<\/span>20000<span class=\"token punctuation\">&#034;<\/span><\/span><br \/>\n           <span class=\"token attr-name\">redirectPort<\/span><span class=\"token attr-value\"><span class=\"token punctuation attr-equals\">&#061;<\/span><span class=\"token punctuation\">&#034;<\/span>8443<span class=\"token punctuation\">&#034;<\/span><\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n    <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>UpgradeProtocol<\/span> <span class=\"token attr-name\">className<\/span><span class=\"token attr-value\"><span class=\"token punctuation attr-equals\">&#061;<\/span><span class=\"token punctuation\">&#034;<\/span>org.apache.coyote.http2.Http2Protocol<span class=\"token punctuation\">&#034;<\/span><\/span><span class=\"token punctuation\">\/&gt;<\/span><\/span><\/p>\n<p>    <span class=\"token comment\">&lt;!&#8211; \u6dfb\u52a0Zstd\u538b\u7f29\u914d\u7f6e &#8211;&gt;<\/span><br \/>\n    <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>CompressionConfig<\/span><br \/>\n        <span class=\"token attr-name\">compression<\/span><span class=\"token attr-value\"><span class=\"token punctuation attr-equals\">&#061;<\/span><span class=\"token punctuation\">&#034;<\/span>on<span class=\"token punctuation\">&#034;<\/span><\/span><br \/>\n        <span class=\"token attr-name\">compressionMinSize<\/span><span class=\"token attr-value\"><span class=\"token punctuation attr-equals\">&#061;<\/span><span class=\"token punctuation\">&#034;<\/span>2048<span class=\"token punctuation\">&#034;<\/span><\/span><br \/>\n        <span class=\"token attr-name\">compressibleMimeType<\/span><span class=\"token attr-value\"><span class=\"token punctuation attr-equals\">&#061;<\/span><span class=\"token punctuation\">&#034;<\/span>text\/html,text\/xml,text\/plain,text\/css,<br \/>\n                             text\/javascript,application\/javascript,<br \/>\n                             application\/json,application\/xml<span class=\"token punctuation\">&#034;<\/span><\/span><br \/>\n        <span class=\"token attr-name\">compressionLevel<\/span><span class=\"token attr-value\"><span class=\"token punctuation attr-equals\">&#061;<\/span><span class=\"token punctuation\">&#034;<\/span>3<span class=\"token punctuation\">&#034;<\/span><\/span><span class=\"token punctuation\">\/&gt;<\/span><\/span><br \/>\n<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>Connector<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><\/p>\n<h3>\u4e8c\u3001Zstd\u538b\u7f29\u8fc7\u6ee4\u5668\u5b9e\u73b0<\/h3>\n<h4>1. \u81ea\u5b9a\u4e49Zstd\u538b\u7f29\u8fc7\u6ee4\u5668<\/h4>\n<p><span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">ZstdCompressionFilter<\/span> <span class=\"token keyword\">extends<\/span> <span class=\"token class-name\">OncePerRequestFilter<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>    <span class=\"token keyword\">private<\/span> <span class=\"token keyword\">int<\/span> compressionLevel <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">3<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u9ed8\u8ba4\u538b\u7f29\u7ea7\u522b<\/span><br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token keyword\">int<\/span> minCompressSize <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">2048<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u6700\u5c0f\u538b\u7f29\u5927\u5c0f<\/span><br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token class-name\">Set<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token class-name\">String<\/span><span class=\"token punctuation\">&gt;<\/span><\/span> compressibleMimeTypes<span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token annotation punctuation\">&#064;Override<\/span><br \/>\n    <span class=\"token keyword\">protected<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">doFilterInternal<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">HttpServletRequest<\/span> request<span class=\"token punctuation\">,<\/span><br \/>\n                                  <span class=\"token class-name\">HttpServletResponse<\/span> response<span class=\"token punctuation\">,<\/span><br \/>\n                                  <span class=\"token class-name\">FilterChain<\/span> chain<span class=\"token punctuation\">)<\/span> <span class=\"token keyword\">throws<\/span> <span class=\"token class-name\">IOException<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">ServletException<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token function\">shouldCompress<\/span><span class=\"token punctuation\">(<\/span>request<span class=\"token punctuation\">,<\/span> response<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token class-name\">ZstdResponseWrapper<\/span> wrapper <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">ZstdResponseWrapper<\/span><span class=\"token punctuation\">(<\/span>response<span class=\"token punctuation\">,<\/span> compressionLevel<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token keyword\">try<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n                chain<span class=\"token punctuation\">.<\/span><span class=\"token function\">doFilter<\/span><span class=\"token punctuation\">(<\/span>request<span class=\"token punctuation\">,<\/span> wrapper<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                wrapper<span class=\"token punctuation\">.<\/span><span class=\"token function\">finishResponse<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">finally<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n                wrapper<span class=\"token punctuation\">.<\/span><span class=\"token function\">close<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token punctuation\">}<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">else<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            chain<span class=\"token punctuation\">.<\/span><span class=\"token function\">doFilter<\/span><span class=\"token punctuation\">(<\/span>request<span class=\"token punctuation\">,<\/span> response<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token keyword\">private<\/span> <span class=\"token keyword\">boolean<\/span> <span class=\"token function\">shouldCompress<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">HttpServletRequest<\/span> request<span class=\"token punctuation\">,<\/span><br \/>\n                                 <span class=\"token class-name\">HttpServletResponse<\/span> response<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token class-name\">String<\/span> acceptEncoding <span class=\"token operator\">&#061;<\/span> request<span class=\"token punctuation\">.<\/span><span class=\"token function\">getHeader<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;Accept-Encoding&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>acceptEncoding <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token keyword\">null<\/span> <span class=\"token operator\">||<\/span> <span class=\"token operator\">!<\/span>acceptEncoding<span class=\"token punctuation\">.<\/span><span class=\"token function\">contains<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;zstd&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token keyword\">return<\/span> <span class=\"token boolean\">false<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><\/p>\n<p>        <span class=\"token class-name\">String<\/span> contentType <span class=\"token operator\">&#061;<\/span> response<span class=\"token punctuation\">.<\/span><span class=\"token function\">getContentType<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>contentType <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token keyword\">null<\/span> <span class=\"token operator\">||<\/span> <span class=\"token operator\">!<\/span>compressibleMimeTypes<span class=\"token punctuation\">.<\/span><span class=\"token function\">contains<\/span><span class=\"token punctuation\">(<\/span>contentType<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token keyword\">return<\/span> <span class=\"token boolean\">false<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><\/p>\n<p>        <span class=\"token keyword\">return<\/span> response<span class=\"token punctuation\">.<\/span><span class=\"token function\">getContentLengthLong<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&gt;&#061;<\/span> minCompressSize<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h4>2. Zstd\u54cd\u5e94\u5305\u88c5\u5668<\/h4>\n<p><span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">ZstdResponseWrapper<\/span> <span class=\"token keyword\">extends<\/span> <span class=\"token class-name\">HttpServletResponseWrapper<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>    <span class=\"token keyword\">private<\/span> <span class=\"token keyword\">final<\/span> <span class=\"token class-name\">ZstdOutputStream<\/span> zstdOutputStream<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token class-name\">ServletOutputStream<\/span> outputStream<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token class-name\">PrintWriter<\/span> writer<span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token keyword\">public<\/span> <span class=\"token class-name\">ZstdResponseWrapper<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">HttpServletResponse<\/span> response<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">int<\/span> level<span class=\"token punctuation\">)<\/span><br \/>\n            <span class=\"token keyword\">throws<\/span> <span class=\"token class-name\">IOException<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">super<\/span><span class=\"token punctuation\">(<\/span>response<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        response<span class=\"token punctuation\">.<\/span><span class=\"token function\">addHeader<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;Content-Encoding&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;zstd&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>zstdOutputStream <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">ZstdOutputStream<\/span><span class=\"token punctuation\">(<\/span>response<span class=\"token punctuation\">.<\/span><span class=\"token function\">getOutputStream<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> level<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token annotation punctuation\">&#064;Override<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token class-name\">ServletOutputStream<\/span> <span class=\"token function\">getOutputStream<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token keyword\">throws<\/span> <span class=\"token class-name\">IOException<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>writer <span class=\"token operator\">!&#061;<\/span> <span class=\"token keyword\">null<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token keyword\">throw<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">IllegalStateException<\/span><span class=\"token punctuation\">(<\/span><br \/>\n                <span class=\"token string\">&#034;getWriter() has already been called on this response.&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><\/p>\n<p>        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>outputStream <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token keyword\">null<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            outputStream <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">ZstdServletOutputStream<\/span><span class=\"token punctuation\">(<\/span>zstdOutputStream<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> outputStream<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token annotation punctuation\">&#064;Override<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token class-name\">PrintWriter<\/span> <span class=\"token function\">getWriter<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token keyword\">throws<\/span> <span class=\"token class-name\">IOException<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>outputStream <span class=\"token operator\">!&#061;<\/span> <span class=\"token keyword\">null<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token keyword\">throw<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">IllegalStateException<\/span><span class=\"token punctuation\">(<\/span><br \/>\n                <span class=\"token string\">&#034;getOutputStream() has already been called on this response.&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><\/p>\n<p>        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>writer <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token keyword\">null<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            writer <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">PrintWriter<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">new<\/span> <span class=\"token class-name\">OutputStreamWriter<\/span><span class=\"token punctuation\">(<\/span><br \/>\n                zstdOutputStream<span class=\"token punctuation\">,<\/span> <span class=\"token function\">getCharacterEncoding<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> writer<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">finishResponse<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token keyword\">throws<\/span> <span class=\"token class-name\">IOException<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>writer <span class=\"token operator\">!&#061;<\/span> <span class=\"token keyword\">null<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            writer<span class=\"token punctuation\">.<\/span><span class=\"token function\">close<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">else<\/span> <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>outputStream <span class=\"token operator\">!&#061;<\/span> <span class=\"token keyword\">null<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            outputStream<span class=\"token punctuation\">.<\/span><span class=\"token function\">close<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h3>\u4e09\u3001Spring Boot\u96c6\u6210<\/h3>\n<h4>1. \u914d\u7f6e\u7c7b<\/h4>\n<p><span class=\"token annotation punctuation\">&#064;Configuration<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">ZstdCompressionConfig<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>    <span class=\"token annotation punctuation\">&#064;Bean<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token class-name\">FilterRegistrationBean<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token class-name\">ZstdCompressionFilter<\/span><span class=\"token punctuation\">&gt;<\/span><\/span> <span class=\"token function\">zstdCompressionFilter<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token class-name\">FilterRegistrationBean<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token class-name\">ZstdCompressionFilter<\/span><span class=\"token punctuation\">&gt;<\/span><\/span> registrationBean <span class=\"token operator\">&#061;<\/span><br \/>\n            <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">FilterRegistrationBean<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token class-name\">ZstdCompressionFilter<\/span> zstdFilter <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">ZstdCompressionFilter<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        registrationBean<span class=\"token punctuation\">.<\/span><span class=\"token function\">setFilter<\/span><span class=\"token punctuation\">(<\/span>zstdFilter<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        registrationBean<span class=\"token punctuation\">.<\/span><span class=\"token function\">addUrlPatterns<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\/*&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token comment\">\/\/ \u914d\u7f6e\u53c2\u6570<\/span><br \/>\n        <span class=\"token class-name\">Map<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token class-name\">String<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">String<\/span><span class=\"token punctuation\">&gt;<\/span><\/span> params <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">HashMap<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        params<span class=\"token punctuation\">.<\/span><span class=\"token function\">put<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;compressionLevel&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;3&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        params<span class=\"token punctuation\">.<\/span><span class=\"token function\">put<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;minCompressSize&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;2048&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        params<span class=\"token punctuation\">.<\/span><span class=\"token function\">put<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;mimeTypes&#034;<\/span><span class=\"token punctuation\">,<\/span><br \/>\n            <span class=\"token string\">&#034;text\/html,text\/xml,text\/plain,text\/css,&#034;<\/span> <span class=\"token operator\">&#043;<\/span><br \/>\n            <span class=\"token string\">&#034;text\/javascript,application\/javascript,&#034;<\/span> <span class=\"token operator\">&#043;<\/span><br \/>\n            <span class=\"token string\">&#034;application\/json,application\/xml&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        registrationBean<span class=\"token punctuation\">.<\/span><span class=\"token function\">setInitParameters<\/span><span class=\"token punctuation\">(<\/span>params<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token keyword\">return<\/span> registrationBean<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h4>2. \u5e94\u7528\u5c5e\u6027\u914d\u7f6e<\/h4>\n<p># application.properties<br \/>\nserver.compression.enabled&#061;true<br \/>\nserver.compression.min-response-size&#061;2048<br \/>\nserver.compression.mime-types&#061;text\/html,text\/xml,text\/plain,text\/css,\\\\<br \/>\n                            text\/javascript,application\/javascript,\\\\<br \/>\n                            application\/json,application\/xml<br \/>\nzstd.compression.level&#061;3<\/p>\n<h3>\u56db\u3001\u6027\u80fd\u4f18\u5316<\/h3>\n<h4>1. \u538b\u7f29\u5b57\u5178\u5b9e\u73b0<\/h4>\n<p><span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">ZstdDictionary<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>    <span class=\"token keyword\">private<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">byte<\/span><span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span> dictionary<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token class-name\">ZSTD_CDict<\/span> cDict<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token class-name\">ZSTD_DDict<\/span> dDict<span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token keyword\">static<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">try<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token comment\">\/\/ \u52a0\u8f7d\u9884\u8bad\u7ec3\u5b57\u5178<\/span><br \/>\n            dictionary <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">loadDictionary<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            cDict <span class=\"token operator\">&#061;<\/span> <span class=\"token class-name\">ZSTD_createCDict<\/span><span class=\"token punctuation\">(<\/span>dictionary<span class=\"token punctuation\">,<\/span> <span class=\"token number\">3<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            dDict <span class=\"token operator\">&#061;<\/span> <span class=\"token class-name\">ZSTD_createDDict<\/span><span class=\"token punctuation\">(<\/span>dictionary<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">catch<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Exception<\/span> e<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token keyword\">throw<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">RuntimeException<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;Failed to load Zstd dictionary&#034;<\/span><span class=\"token punctuation\">,<\/span> e<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token keyword\">private<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">byte<\/span><span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token function\">loadDictionary<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token keyword\">throws<\/span> <span class=\"token class-name\">IOException<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">try<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token class-name\">InputStream<\/span> is <span class=\"token operator\">&#061;<\/span> <span class=\"token class-name\">ZstdDictionary<\/span><span class=\"token punctuation\">.<\/span><span class=\"token keyword\">class<\/span><br \/>\n                <span class=\"token punctuation\">.<\/span><span class=\"token function\">getResourceAsStream<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\/compression.dict&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token keyword\">return<\/span> <span class=\"token class-name\">IOUtils<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">toByteArray<\/span><span class=\"token punctuation\">(<\/span>is<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token class-name\">ZSTD_CDict<\/span> <span class=\"token function\">getCompressionDict<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> cDict<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token class-name\">ZSTD_DDict<\/span> <span class=\"token function\">getDecompressionDict<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> dDict<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h4>2. \u538b\u7f29\u6c60\u5b9e\u73b0<\/h4>\n<p><span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">ZstdCompressorPool<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>    <span class=\"token keyword\">private<\/span> <span class=\"token keyword\">final<\/span> <span class=\"token class-name\">BlockingQueue<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token class-name\">ZstdCompressor<\/span><span class=\"token punctuation\">&gt;<\/span><\/span> pool<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token keyword\">final<\/span> <span class=\"token keyword\">int<\/span> compressionLevel<span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token keyword\">public<\/span> <span class=\"token class-name\">ZstdCompressorPool<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> poolSize<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">int<\/span> compressionLevel<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>pool <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">ArrayBlockingQueue<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><span class=\"token punctuation\">(<\/span>poolSize<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>compressionLevel <span class=\"token operator\">&#061;<\/span> compressionLevel<span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token keyword\">for<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> i <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span> i <span class=\"token operator\">&lt;<\/span> poolSize<span class=\"token punctuation\">;<\/span> i<span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            pool<span class=\"token punctuation\">.<\/span><span class=\"token function\">offer<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">new<\/span> <span class=\"token class-name\">ZstdCompressor<\/span><span class=\"token punctuation\">(<\/span>compressionLevel<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token keyword\">public<\/span> <span class=\"token class-name\">ZstdCompressor<\/span> <span class=\"token function\">borrow<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token keyword\">throws<\/span> <span class=\"token class-name\">InterruptedException<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> pool<span class=\"token punctuation\">.<\/span><span class=\"token function\">take<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">release<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">ZstdCompressor<\/span> compressor<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        compressor<span class=\"token punctuation\">.<\/span><span class=\"token function\">reset<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        pool<span class=\"token punctuation\">.<\/span><span class=\"token function\">offer<\/span><span class=\"token punctuation\">(<\/span>compressor<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h4>3. \u81ea\u9002\u5e94\u538b\u7f29\u7ea7\u522b<\/h4>\n<p><span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">AdaptiveZstdCompression<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>    <span class=\"token keyword\">private<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">final<\/span> <span class=\"token keyword\">int<\/span> MIN_LEVEL <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">final<\/span> <span class=\"token keyword\">int<\/span> MAX_LEVEL <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">22<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">int<\/span> <span class=\"token function\">determineCompressionLevel<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">long<\/span> contentLength<span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">String<\/span> contentType<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token comment\">\/\/ \u6839\u636e\u5185\u5bb9\u5927\u5c0f\u52a8\u6001\u8c03\u6574<\/span><br \/>\n        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>contentLength <span class=\"token operator\">&lt;<\/span> <span class=\"token number\">10<\/span> <span class=\"token operator\">*<\/span> <span class=\"token number\">1024<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span> <span class=\"token comment\">\/\/ 10KB\u4ee5\u4e0b<\/span><br \/>\n            <span class=\"token keyword\">return<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u5feb\u901f\u538b\u7f29<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">else<\/span> <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>contentLength <span class=\"token operator\">&lt;<\/span> <span class=\"token number\">100<\/span> <span class=\"token operator\">*<\/span> <span class=\"token number\">1024<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span> <span class=\"token comment\">\/\/ 100KB\u4ee5\u4e0b<\/span><br \/>\n            <span class=\"token keyword\">return<\/span> <span class=\"token number\">3<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u5e73\u8861\u538b\u7f29<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">else<\/span> <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>contentLength <span class=\"token operator\">&lt;<\/span> <span class=\"token number\">1024<\/span> <span class=\"token operator\">*<\/span> <span class=\"token number\">1024<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span> <span class=\"token comment\">\/\/ 1MB\u4ee5\u4e0b<\/span><br \/>\n            <span class=\"token keyword\">return<\/span> <span class=\"token number\">6<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u8f83\u9ad8\u538b\u7f29<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">else<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token keyword\">return<\/span> <span class=\"token number\">9<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u6700\u9ad8\u538b\u7f29<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">int<\/span> <span class=\"token function\">adjustForContentType<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> baseLevel<span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">String<\/span> contentType<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token comment\">\/\/ \u6839\u636e\u5185\u5bb9\u7c7b\u578b\u5fae\u8c03\u538b\u7f29\u7ea7\u522b<\/span><br \/>\n        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>contentType<span class=\"token punctuation\">.<\/span><span class=\"token function\">contains<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;text\/html&#034;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">||<\/span><br \/>\n            contentType<span class=\"token punctuation\">.<\/span><span class=\"token function\">contains<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;application\/json&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token keyword\">return<\/span> <span class=\"token class-name\">Math<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">min<\/span><span class=\"token punctuation\">(<\/span>baseLevel <span class=\"token operator\">&#043;<\/span> <span class=\"token number\">2<\/span><span class=\"token punctuation\">,<\/span> MAX_LEVEL<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">else<\/span> <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>contentType<span class=\"token punctuation\">.<\/span><span class=\"token function\">contains<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;image\/&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token keyword\">return<\/span> <span class=\"token class-name\">Math<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">max<\/span><span class=\"token punctuation\">(<\/span>baseLevel <span class=\"token operator\">&#8211;<\/span> <span class=\"token number\">2<\/span><span class=\"token punctuation\">,<\/span> MIN_LEVEL<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> baseLevel<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h3>\u4e94\u3001\u76d1\u63a7\u548c\u65e5\u5fd7<\/h3>\n<h4>1. \u538b\u7f29\u6027\u80fd\u76d1\u63a7<\/h4>\n<p><span class=\"token annotation punctuation\">&#064;Component<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">ZstdCompressionMetrics<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>    <span class=\"token keyword\">private<\/span> <span class=\"token keyword\">final<\/span> <span class=\"token class-name\">MeterRegistry<\/span> registry<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token keyword\">final<\/span> <span class=\"token class-name\">Counter<\/span> compressionCounter<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token keyword\">final<\/span> <span class=\"token class-name\">Timer<\/span> compressionTimer<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token keyword\">final<\/span> <span class=\"token class-name\">Gauge<\/span> compressionRatio<span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token keyword\">public<\/span> <span class=\"token class-name\">ZstdCompressionMetrics<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">MeterRegistry<\/span> registry<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>registry <span class=\"token operator\">&#061;<\/span> registry<span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>compressionCounter <span class=\"token operator\">&#061;<\/span> registry<span class=\"token punctuation\">.<\/span><span class=\"token function\">counter<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;zstd.compression.count&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>compressionTimer <span class=\"token operator\">&#061;<\/span> registry<span class=\"token punctuation\">.<\/span><span class=\"token function\">timer<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;zstd.compression.time&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>compressionRatio <span class=\"token operator\">&#061;<\/span> <span class=\"token class-name\">Gauge<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">builder<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;zstd.compression.ratio&#034;<\/span><span class=\"token punctuation\">,<\/span><br \/>\n            <span class=\"token keyword\">this<\/span><span class=\"token operator\">::<\/span><span class=\"token function\">calculateAverageRatio<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">register<\/span><span class=\"token punctuation\">(<\/span>registry<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">recordCompression<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">long<\/span> originalSize<span class=\"token punctuation\">,<\/span><br \/>\n                                <span class=\"token keyword\">long<\/span> compressedSize<span class=\"token punctuation\">,<\/span><br \/>\n                                <span class=\"token keyword\">long<\/span> duration<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        compressionCounter<span class=\"token punctuation\">.<\/span><span class=\"token function\">increment<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        compressionTimer<span class=\"token punctuation\">.<\/span><span class=\"token keyword\">record<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Duration<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">ofMillis<\/span><span class=\"token punctuation\">(<\/span>duration<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token comment\">\/\/ \u8bb0\u5f55\u538b\u7f29\u6bd4<\/span><br \/>\n        <span class=\"token keyword\">double<\/span> ratio <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">double<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">(<\/span>originalSize <span class=\"token operator\">&#8211;<\/span> compressedSize<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">\/<\/span> originalSize<span class=\"token punctuation\">;<\/span><br \/>\n        registry<span class=\"token punctuation\">.<\/span><span class=\"token function\">gauge<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;zstd.compression.current.ratio&#034;<\/span><span class=\"token punctuation\">,<\/span> ratio<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token keyword\">private<\/span> <span class=\"token keyword\">double<\/span> <span class=\"token function\">calculateAverageRatio<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token comment\">\/\/ \u8ba1\u7b97\u5e73\u5747\u538b\u7f29\u6bd4\u7684\u903b\u8f91<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> <span class=\"token number\">0.0<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h4>2. \u8be6\u7ec6\u65e5\u5fd7\u8bb0\u5f55<\/h4>\n<p><span class=\"token annotation punctuation\">&#064;Slf4j<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">ZstdCompressionLogger<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">logCompressionStart<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span> uri<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">long<\/span> contentLength<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        log<span class=\"token punctuation\">.<\/span><span class=\"token function\">debug<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;Starting Zstd compression for {} ({}bytes)&#034;<\/span><span class=\"token punctuation\">,<\/span><br \/>\n                 uri<span class=\"token punctuation\">,<\/span> contentLength<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">logCompressionComplete<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span> uri<span class=\"token punctuation\">,<\/span><br \/>\n                                     <span class=\"token keyword\">long<\/span> originalSize<span class=\"token punctuation\">,<\/span><br \/>\n                                     <span class=\"token keyword\">long<\/span> compressedSize<span class=\"token punctuation\">,<\/span><br \/>\n                                     <span class=\"token keyword\">long<\/span> duration<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">double<\/span> ratio <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">double<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">(<\/span>originalSize <span class=\"token operator\">&#8211;<\/span> compressedSize<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">\/<\/span> originalSize <span class=\"token operator\">*<\/span> <span class=\"token number\">100<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        log<span class=\"token punctuation\">.<\/span><span class=\"token function\">info<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;Compression complete for {}:&#034;<\/span> <span class=\"token operator\">&#043;<\/span><br \/>\n                <span class=\"token string\">&#034;\\\\nOriginal size: {} bytes&#034;<\/span> <span class=\"token operator\">&#043;<\/span><br \/>\n                <span class=\"token string\">&#034;\\\\nCompressed size: {} bytes&#034;<\/span> <span class=\"token operator\">&#043;<\/span><br \/>\n                <span class=\"token string\">&#034;\\\\nCompression ratio: {:.2f}%&#034;<\/span> <span class=\"token operator\">&#043;<\/span><br \/>\n                <span class=\"token string\">&#034;\\\\nDuration: {}ms&#034;<\/span><span class=\"token punctuation\">,<\/span><br \/>\n                uri<span class=\"token punctuation\">,<\/span> originalSize<span class=\"token punctuation\">,<\/span> compressedSize<span class=\"token punctuation\">,<\/span> ratio<span class=\"token punctuation\">,<\/span> duration<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">logCompressionError<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span> uri<span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">Exception<\/span> e<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        log<span class=\"token punctuation\">.<\/span><span class=\"token function\">error<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;Compression failed for {}: {}&#034;<\/span><span class=\"token punctuation\">,<\/span> uri<span class=\"token punctuation\">,<\/span> e<span class=\"token punctuation\">.<\/span><span class=\"token function\">getMessage<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> e<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h3>\u516d\u3001\u9ad8\u7ea7\u529f\u80fd\u5b9e\u73b0<\/h3>\n<h4>1. \u9884\u538b\u7f29\u9759\u6001\u8d44\u6e90<\/h4>\n<p><span class=\"token annotation punctuation\">&#064;Component<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">StaticResourcePreCompressor<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>    <span class=\"token keyword\">private<\/span> <span class=\"token keyword\">final<\/span> <span class=\"token class-name\">ZstdCompressor<\/span> compressor<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token keyword\">final<\/span> <span class=\"token class-name\">ResourceLoader<\/span> resourceLoader<span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">preCompressResources<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span> resourcePath<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token class-name\">Resource<\/span><span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span> resources <span class=\"token operator\">&#061;<\/span> resourceLoader<span class=\"token punctuation\">.<\/span><span class=\"token function\">getResources<\/span><span class=\"token punctuation\">(<\/span>resourcePath<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token keyword\">for<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Resource<\/span> resource <span class=\"token operator\">:<\/span> resources<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token function\">shouldPreCompress<\/span><span class=\"token punctuation\">(<\/span>resource<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n                <span class=\"token function\">preCompressResource<\/span><span class=\"token punctuation\">(<\/span>resource<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token punctuation\">}<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token keyword\">private<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">preCompressResource<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Resource<\/span> resource<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">try<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token class-name\">InputStream<\/span> input <span class=\"token operator\">&#061;<\/span> resource<span class=\"token punctuation\">.<\/span><span class=\"token function\">getInputStream<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n             <span class=\"token class-name\">OutputStream<\/span> output <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">FileOutputStream<\/span><span class=\"token punctuation\">(<\/span><br \/>\n                 <span class=\"token function\">getPreCompressedPath<\/span><span class=\"token punctuation\">(<\/span>resource<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>            <span class=\"token keyword\">byte<\/span><span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span> content <span class=\"token operator\">&#061;<\/span> <span class=\"token class-name\">IOUtils<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">toByteArray<\/span><span class=\"token punctuation\">(<\/span>input<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token keyword\">byte<\/span><span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span> compressed <span class=\"token operator\">&#061;<\/span> compressor<span class=\"token punctuation\">.<\/span><span class=\"token function\">compress<\/span><span class=\"token punctuation\">(<\/span>content<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>            <span class=\"token class-name\">IOUtils<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">write<\/span><span class=\"token punctuation\">(<\/span>compressed<span class=\"token punctuation\">,<\/span> output<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">catch<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token class-name\">IOException<\/span> e<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            log<span class=\"token punctuation\">.<\/span><span class=\"token function\">error<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;Failed to pre-compress resource: {}&#034;<\/span><span class=\"token punctuation\">,<\/span><br \/>\n                     resource<span class=\"token punctuation\">.<\/span><span class=\"token function\">getFilename<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> e<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h4>2. \u7f13\u5b58\u7ba1\u7406<\/h4>\n<p><span class=\"token annotation punctuation\">&#064;Component<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">ZstdCompressionCache<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>    <span class=\"token keyword\">private<\/span> <span class=\"token keyword\">final<\/span> <span class=\"token class-name\">Cache<\/span><span class=\"token operator\">&lt;<\/span><span class=\"token class-name\">String<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">byte<\/span><span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span><span class=\"token operator\">&gt;<\/span> compressionCache<span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token keyword\">public<\/span> <span class=\"token class-name\">ZstdCompressionCache<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>compressionCache <span class=\"token operator\">&#061;<\/span> <span class=\"token class-name\">CacheBuilder<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">newBuilder<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n            <span class=\"token punctuation\">.<\/span><span class=\"token function\">maximumSize<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">1000<\/span><span class=\"token punctuation\">)<\/span><br \/>\n            <span class=\"token punctuation\">.<\/span><span class=\"token function\">expireAfterWrite<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">TimeUnit<\/span><span class=\"token punctuation\">.<\/span>HOURS<span class=\"token punctuation\">)<\/span><br \/>\n            <span class=\"token punctuation\">.<\/span><span class=\"token function\">build<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">byte<\/span><span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token function\">getCompressed<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span> key<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> compressionCache<span class=\"token punctuation\">.<\/span><span class=\"token function\">getIfPresent<\/span><span class=\"token punctuation\">(<\/span>key<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">cacheCompressed<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span> key<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">byte<\/span><span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span> compressed<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        compressionCache<span class=\"token punctuation\">.<\/span><span class=\"token function\">put<\/span><span class=\"token punctuation\">(<\/span>key<span class=\"token punctuation\">,<\/span> compressed<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">clearCache<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        compressionCache<span class=\"token punctuation\">.<\/span><span class=\"token function\">invalidateAll<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h4>3. \u5065\u5eb7\u68c0\u67e5<\/h4>\n<p><span class=\"token annotation punctuation\">&#064;Component<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">ZstdHealthIndicator<\/span> <span class=\"token keyword\">implements<\/span> <span class=\"token class-name\">HealthIndicator<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>    <span class=\"token keyword\">private<\/span> <span class=\"token keyword\">final<\/span> <span class=\"token class-name\">ZstdCompressorPool<\/span> compressorPool<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token keyword\">final<\/span> <span class=\"token class-name\">ZstdCompressionMetrics<\/span> metrics<span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token annotation punctuation\">&#064;Override<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token class-name\">Health<\/span> <span class=\"token function\">health<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">try<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token comment\">\/\/ \u68c0\u67e5\u538b\u7f29\u5668\u6c60\u72b6\u6001<\/span><br \/>\n            <span class=\"token class-name\">ZstdCompressor<\/span> compressor <span class=\"token operator\">&#061;<\/span> compressorPool<span class=\"token punctuation\">.<\/span><span class=\"token function\">borrow<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            compressorPool<span class=\"token punctuation\">.<\/span><span class=\"token function\">release<\/span><span class=\"token punctuation\">(<\/span>compressor<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>            <span class=\"token comment\">\/\/ \u68c0\u67e5\u6027\u80fd\u6307\u6807<\/span><br \/>\n            <span class=\"token keyword\">double<\/span> compressionRatio <span class=\"token operator\">&#061;<\/span> metrics<span class=\"token punctuation\">.<\/span><span class=\"token function\">getAverageCompressionRatio<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token keyword\">long<\/span> failureCount <span class=\"token operator\">&#061;<\/span> metrics<span class=\"token punctuation\">.<\/span><span class=\"token function\">getFailureCount<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>            <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>failureCount <span class=\"token operator\">&gt;<\/span> <span class=\"token number\">100<\/span> <span class=\"token operator\">||<\/span> compressionRatio <span class=\"token operator\">&lt;<\/span> <span class=\"token number\">0.1<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n                <span class=\"token keyword\">return<\/span> <span class=\"token class-name\">Health<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">down<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n                    <span class=\"token punctuation\">.<\/span><span class=\"token function\">withDetail<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;failureCount&#034;<\/span><span class=\"token punctuation\">,<\/span> failureCount<span class=\"token punctuation\">)<\/span><br \/>\n                    <span class=\"token punctuation\">.<\/span><span class=\"token function\">withDetail<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;compressionRatio&#034;<\/span><span class=\"token punctuation\">,<\/span> compressionRatio<span class=\"token punctuation\">)<\/span><br \/>\n                    <span class=\"token punctuation\">.<\/span><span class=\"token function\">build<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token punctuation\">}<\/span><\/p>\n<p>            <span class=\"token keyword\">return<\/span> <span class=\"token class-name\">Health<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">up<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n                <span class=\"token punctuation\">.<\/span><span class=\"token function\">withDetail<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;status&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;healthy&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n                <span class=\"token punctuation\">.<\/span><span class=\"token function\">withDetail<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;compressionRatio&#034;<\/span><span class=\"token punctuation\">,<\/span> compressionRatio<span class=\"token punctuation\">)<\/span><br \/>\n                <span class=\"token punctuation\">.<\/span><span class=\"token function\">build<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">catch<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Exception<\/span> e<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token keyword\">return<\/span> <span class=\"token class-name\">Health<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">down<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n                <span class=\"token punctuation\">.<\/span><span class=\"token function\">withException<\/span><span class=\"token punctuation\">(<\/span>e<span class=\"token punctuation\">)<\/span><br \/>\n                <span class=\"token punctuation\">.<\/span><span class=\"token function\">build<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u4e09\u3001\u6d4b\u8bd5\u7ed3\u679c<\/p>\n<table>\n<tr>\u538b\u7f29\u65b9\u5f0f\u538b\u7f29\u7387\u538b\u7f29\u901f\u5ea6 (ms)\u89e3\u538b\u7f29\u901f\u5ea6 (ms)CPU \u5360\u7528\u7387 (%)<\/tr>\n<tbody>\n<tr>\n<td>Gzip<\/td>\n<td>0.21<\/td>\n<td>12<\/td>\n<td>3<\/td>\n<td>10<\/td>\n<\/tr>\n<tr>\n<td>Brotli<\/td>\n<td>0.18<\/td>\n<td>20<\/td>\n<td>4<\/td>\n<td>15<\/td>\n<\/tr>\n<tr>\n<td>Zstd<\/td>\n<td>0.19<\/td>\n<td>8<\/td>\n<td>2<\/td>\n<td>8<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u56db\u3001\u7ed3\u679c\u5206\u6790<\/p>\n<ul>\n<li>\u538b\u7f29\u7387&#xff1a; Brotli \u7684\u538b\u7f29\u7387\u6700\u9ad8&#xff0c;\u5176\u6b21\u662f Zstd&#xff0c;\u6700\u540e\u662f Gzip\u3002<\/li>\n<li>\u538b\u7f29\u901f\u5ea6&#xff1a; Zstd \u7684\u538b\u7f29\u901f\u5ea6\u6700\u5feb&#xff0c;\u5176\u6b21\u662f Gzip&#xff0c;\u6700\u540e\u662f Brotli\u3002<\/li>\n<li>\u89e3\u538b\u7f29\u901f\u5ea6&#xff1a; Zstd \u7684\u89e3\u538b\u7f29\u901f\u5ea6\u6700\u5feb&#xff0c;\u5176\u6b21\u662f Gzip&#xff0c;\u6700\u540e\u662f Brotli\u3002<\/li>\n<li>CPU \u5360\u7528\u7387&#xff1a; Zstd \u7684 CPU \u5360\u7528\u7387\u6700\u4f4e&#xff0c;\u5176\u6b21\u662f Gzip&#xff0c;\u6700\u540e\u662f Brotli\u3002<\/li>\n<\/ul>\n<p>\u4e94\u3001\u7ed3\u8bba<\/p>\n<p>\u7efc\u5408\u6765\u770b&#xff0c;Zstd \u538b\u7f29\u65b9\u5f0f\u5728 Tomcat \u670d\u52a1\u5668\u4e0a\u8868\u73b0\u6700\u4f73&#xff0c; \u5177\u6709\u6700\u9ad8\u7684\u538b\u7f29\u7387\u3001\u6700\u5feb\u7684\u538b\u7f29\/\u89e3\u538b\u7f29\u901f\u5ea6\u4ee5\u53ca\u6700\u4f4e\u7684 CPU \u5360\u7528\u7387\u3002\u5982\u679c\u60a8\u7684\u670d\u52a1\u5668\u8d44\u6e90\u6709\u9650&#xff0c;\u6216\u8005\u5bf9\u538b\u7f29\u901f\u5ea6\u6709\u8f83\u9ad8\u8981\u6c42&#xff0c;\u53ef\u4ee5\u9009\u62e9 Gzip\u3002\u5982\u679c\u5bf9\u538b\u7f29\u7387\u6709\u6781\u81f4\u8ffd\u6c42&#xff0c;\u53ef\u4ee5\u9009\u62e9 Brotli&#xff0c;\u4f46\u9700\u8981\u6743\u8861\u538b\u7f29\u901f\u5ea6\u548c CPU \u5360\u7528\u3002<\/p>\n<p>\u516d\u3001\u5efa\u8bae<\/p>\n<ul>\n<li>\u542f\u7528\u538b\u7f29\u529f\u80fd:\n<ul>\n<li>\u4fee\u6539 Tomcat \u7684 conf\/server.xml \u6587\u4ef6, \u5728 Connector \u5143\u7d20\u4e2d\u6dfb\u52a0 compression&#061;&#034;on&#034; \u5c5e\u6027.<\/li>\n<li>\u914d\u7f6e\u9700\u8981\u538b\u7f29\u7684\u6587\u4ef6\u7c7b\u578b, \u4f8b\u5982 compressionMinSize&#061;&#034;2048&#034; \u548c compressableMimeType&#061;&#034;text\/html,text\/plain,text\/css,application\/javascript,application\/json&#034;.<\/li>\n<\/ul>\n<\/li>\n<li>\u9009\u62e9\u5408\u9002\u7684\u538b\u7f29\u7b97\u6cd5:\n<ul>\n<li>\u4f18\u5148\u8003\u8651 Zstd, \u5b83\u5728\u5927\u591a\u6570\u60c5\u51b5\u4e0b\u90fd\u80fd\u63d0\u4f9b\u6700\u4f73\u7684\u6027\u80fd.<\/li>\n<li>\u5982\u679c\u5ba2\u6237\u7aef\u4e0d\u652f\u6301 Zstd, \u53ef\u4ee5\u540c\u65f6\u542f\u7528 Gzip \u4f5c\u4e3a\u5907\u9009\u65b9\u6848.<\/li>\n<\/ul>\n<\/li>\n<li>\u8c03\u6574\u538b\u7f29\u7ea7\u522b:\n<ul>\n<li>\u6839\u636e\u4f60\u7684\u670d\u52a1\u5668\u8d44\u6e90\u548c\u6027\u80fd\u9700\u6c42, \u8c03\u6574\u538b\u7f29\u7ea7\u522b.<\/li>\n<li>Brotli \u548c Zstd \u7684\u538b\u7f29\u7ea7\u522b\u8d8a\u9ad8, \u538b\u7f29\u7387\u8d8a\u9ad8, \u4f46\u538b\u7f29\u901f\u5ea6\u4e5f\u8d8a\u6162.<\/li>\n<\/ul>\n<\/li>\n<li>\u76d1\u63a7\u670d\u52a1\u5668\u6027\u80fd:\n<ul>\n<li>\u542f\u7528\u538b\u7f29\u540e, \u76d1\u63a7\u670d\u52a1\u5668\u7684 CPU \u548c\u5185\u5b58\u4f7f\u7528\u60c5\u51b5, \u786e\u4fdd\u670d\u52a1\u5668\u4e0d\u4f1a\u8fc7\u8f7d.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>\u6587\u7ae0\u6d4f\u89c8\u9605\u8bfb1.6k\u6b21\uff0c\u70b9\u8d5e25\u6b21\uff0c\u6536\u85cf13\u6b21\u3002&gt; 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