{"id":118287,"date":"2026-10-26T21:01:55","date_gmt":"2026-10-26T13:01:55","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/118287.html"},"modified":"2026-10-26T21:01:55","modified_gmt":"2026-10-26T13:01:55","slug":"restclient-create%e7%bb%95%e8%bf%87%e8%b6%85%e6%97%b6%e4%b8%8e%e8%99%9a%e6%8b%9f%e7%ba%bf%e7%a8%8b%e9%85%8d%e7%bd%ae","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/118287.html","title":{"rendered":"RestClient.create()\u7ed5\u8fc7\u8d85\u65f6\u4e0e\u865a\u62df\u7ebf\u7a0b\u914d\u7f6e"},"content":{"rendered":"<p>        \/* MD \/ \u5bcc\u6587\u672c\u4e2d\u7684 .toc\uff08\u542b\u535a\u5ba2\u56ed\u642c\u5bb6\u7b49\u5d4c\u5957\u7ed3\u6784\uff09\uff1b.toc-box \u5728\u4fa7\u680f\uff0c\u4e0d\u53d7\u5f71\u54cd *\/<br \/>\n        #content_views .toc,<br \/>\n        \/* \u7f16\u8f91\u5668\u5e38\u5728\u76ee\u5f55\u524d\u540e\u63d2\u5165\u7a7a p\uff08:empty \u4ecd\u5360 20px\uff09\uff0c\u4e00\u5e76\u53bb\u6389\u907f\u514d\u9876\u7a7a\u9699 *\/<br \/>\n        #content_views.markdown_views &gt; p:empty:has(+ .toc),<br \/>\n        #content_views.markdown_views &gt; .toc + p:empty,<br \/>\n        \/* \u5bcc\u6587\u672c\u65e7\u7248\u76ee\u5f55\u6807\u8bb0 *\/<br \/>\n        #content_views.htmledit_views #main-toc,<br \/>\n        #content_views.htmledit_views #hr-toc,<br \/>\n        #content_views.htmledit_views p[id*=\\&#8221;-toc\\&#8221;] {<br \/>\n          display: none !important;<br \/>\n        }<br \/>\n        \/* \u76ee\u5f55\u53bb\u6389\u540e\uff0c\u7d27\u8ddf\u7684\u9996\u4e2a\u6807\u9898\u4e0d\u518d\u591a\u51fa\u4e00\u5757\u4e0a\u8fb9\u8ddd *\/<br \/>\n        #content_views.markdown_views &gt; .toc + h1,<br \/>\n        #content_views.markdown_views &gt; .toc + h2,<br \/>\n        #content_views.markdown_views &gt; .toc + h3,<br \/>\n        #content_views.markdown_views &gt; .toc + h4,<br \/>\n        #content_views.markdown_views &gt; .toc + p:empty + h1,<br \/>\n        #content_views.markdown_views &gt; .toc + p:empty + h2,<br \/>\n        #content_views.markdown_views &gt; .toc + p:empty + h3,<br \/>\n        #content_views.markdown_views &gt; .toc + p:empty + h4 {<br \/>\n          margin-top: 0 !important;<br \/>\n        }<\/p>\n<h2>Spring Boot RestClient&#xff1a;create() \u7ed5\u8fc7\u81ea\u52a8\u914d\u7f6e&#xff0c;\u8d85\u65f6\u548c\u865a\u62df\u7ebf\u7a0b\u90fd\u6ca1\u751f\u6548<\/h2>\n<p>YAML \u91cc\u914d\u4e86 spring.http.client.* \u8d85\u65f6&#xff0c;\u4e5f\u5f00\u4e86\u865a\u62df\u7ebf\u7a0b&#xff0c;RestClient.create() \u540e\u4e24\u8005\u5374\u50cf\u6ca1\u5199\u2014\u2014\u5b98\u65b9\u6587\u6863\u5176\u5b9e\u65e9\u5c31\u70b9\u540d\u4e86\u3002<\/p>\n<h3>\u4e00\u3001\u75c7\u72b6&#xff1a;\u8d85\u65f6\u4e0e\u865a\u62df\u7ebf\u7a0b\u300c\u5199\u4e86\u7b49\u4e8e\u6ca1\u5199\u300d<\/h3>\n<p>\u8054\u8c03\u6216\u538b\u6d4b\u65f6&#xff0c;\u5e38\u89c1\u4e24\u7c7b\u300c\u914d\u7f6e\u660e\u660e\u5f00\u4e86\u3001\u884c\u4e3a\u5374\u50cf\u9ed8\u8ba4\u300d\u7684\u73b0\u8c61&#xff1a;<\/p>\n<li>\u8bfb\/\u8fde\u8d85\u65f6\u4e0d\u751f\u6548&#xff1a;application.yml \u5df2\u5199 spring.http.client.connect-timeout\u3001read-timeout&#xff0c;\u4e0b\u6e38\u6545\u610f\u62d6\u6162\u65f6&#xff0c;\u5ba2\u6237\u7aef\u4ecd\u957f\u65f6\u95f4\u6302\u8d77&#xff0c;\u4e0d\u50cf\u4f60\u8bbe\u7684\u79d2\u7ea7\u5931\u8d25&#xff1b;<\/li>\n<li>\u865a\u62df\u7ebf\u7a0b\u5f00\u5173\u300c\u770b\u4e0d\u89c1\u300d&#xff1a;\u5df2\u8bbe spring.threads.virtual.enabled&#061;true&#xff08;Java 21&#043;&#xff09;&#xff0c;\u4f46\u5bf9 JDK HttpClient \u51fa\u7ad9\u8c03\u7528\u505a jstack \/ \u7ebf\u7a0b\u89c2\u6d4b\u65f6&#xff0c;\u4ecd\u5927\u91cf\u770b\u5230\u5e73\u53f0\u7ebf\u7a0b\u5f62\u6001\u7684 HttpClient-* worker&#xff0c;\u800c\u4e0d\u662f\u9884\u671f\u4e2d\u7684\u865a\u62df\u7ebf\u7a0b\u6267\u884c\u8def\u5f84\u3002<\/li>\n<p>\u8fd9\u4e24\u7c7b\u95ee\u9898\u7ecf\u5e38\u53e0\u5728\u4e00\u8d77&#xff1a;\u4e1a\u52a1\u4ee3\u7801\u91cc\u968f\u624b\u5199\u4e86 RestClient.create()&#xff0c;\u6216\u81ea\u5df1 new JdkClientHttpRequestFactory(&#8230;)&#xff0c;\u518d\u6307\u671b Boot \u7684\u5168\u5c40 HTTP \u5ba2\u6237\u7aef\u5c5e\u6027\u4e0e\u865a\u7ebf\u7a0b\u5f00\u5173\u81ea\u52a8\u8d34\u4e0a\u53bb\u3002\u7ed3\u679c YAML \u548c Customizer \u5168\u88ab\u7ed5\u8fc7&#xff0c;\u6392\u969c\u65f6\u5374\u5148\u53bb\u6000\u7591\u4e0b\u6e38\u3001\u7f51\u5173&#xff0c;\u751a\u81f3 JVM \u53c2\u6570\u3002<\/p>\n<p>\u89e6\u53d1\u573a\u666f\u5f88\u65e5\u5e38&#xff0c;\u4e0d\u7528\u7b49\u51fa\u4e8b\u6545\u624d\u649e\u4e0a&#xff1a;<\/p>\n<ul>\n<li>\u4ece RestTemplate \/ \u793a\u4f8b\u4ed3\u5e93\u6284\u6765\u7684 RestClient.create(baseUrl)&#xff0c;\u8bc4\u5ba1\u65f6\u6ca1\u4eba\u76ef\u81ea\u52a8\u914d\u7f6e\u8def\u5f84&#xff1b;<\/li>\n<li>\u5de5\u5177\u7c7b\u5199\u6210 static final RestClient CLIENT &#061; RestClient.create(&#8230;)&#xff0c;\u751f\u547d\u5468\u671f\u5b8c\u5168\u8131\u79bb Spring&#xff1b;<\/li>\n<li>\u5355\u6d4b\u91cc\u7528 create() \u56fe\u7701\u4e8b&#xff0c;\u540e\u6765\u540c\u4e00\u5199\u6cd5\u8fdb\u4e86\u751f\u4ea7\u914d\u7f6e\u7c7b&#xff1b;<\/li>\n<li>\u660e\u786e\u8981\u7528 JDK \u5ba2\u6237\u7aef\u65f6&#xff0c;\u624b\u5199 HttpClient.newHttpClient() &#043; JdkClientHttpRequestFactory&#xff0c;\u4ee5\u4e3a\u300c\u5df2\u7ecf\u8ddf yaml \u91cc\u7684 factory&#061;jdk \u5bf9\u9f50\u4e86\u300d\u3002<\/li>\n<\/ul>\n<p>\u4e0b\u9762\u53ea\u6309 Spring Boot 3.5 \u00b7 Calling REST Services \u7684\u539f\u6587&#xff0c;\u5bf9\u7167 Framework \/ Boot \u8bae\u9898&#xff0c;\u8bb2\u6e05\u695a\u300c\u8c01\u751f\u6548\u3001\u8c01\u7ed5\u8fc7\u30013.5 \u4e0e 4.0 \u5dee\u5728\u54ea\u300d\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/10\/20261026130153-6adf4f41befba.png\" alt=\"YAML \u914d\u7f6e\u8d70 Builder \u4e0e create() \u7ed5\u8fc7\u5bf9\u7167\" \/><\/p>\n<h3>\u4e8c\u3001\u5b98\u65b9\u7ed3\u8bba&#xff1a;create() \u4e0d\u8d70\u81ea\u52a8\u914d\u7f6e<\/h3>\n<p>Boot 3.5 \u6587\u6863\u5bf9 RestClient \u5199\u5f97\u5f88\u76f4\u767d&#xff1a;<\/p>\n<p>Spring Boot \u4f1a\u4e3a\u4f60\u521b\u5efa\u5e76\u9884\u914d\u7f6e\u4e00\u4e2a\u539f\u578b&#xff08;prototype&#xff09; RestClient.Builder Bean\u3002\u5f3a\u70c8\u5efa\u8bae\u5728\u7ec4\u4ef6\u91cc\u6ce8\u5165\u5b83&#xff0c;\u518d\u7528\u5b83 build() \u51fa RestClient\u3002\u8be5 Builder \u4f1a\u5e26\u4e0a HttpMessageConverters \u4ee5\u53ca\u5408\u9002\u7684 ClientHttpRequestFactory\u3002<\/p>\n<p>\u5b9a\u5236\u8def\u5f84\u5206\u4e09\u6863&#xff08;\u7531\u7a84\u5230\u5bbd&#xff09;&#xff1a;<\/p>\n<li>\u6ce8\u5165\u81ea\u52a8\u914d\u7f6e\u7684 RestClient.Builder&#xff0c;\u5728\u5c40\u90e8\u6539 baseUrl\u3001header \u7b49&#xff1b;<\/li>\n<li>\u58f0\u660e RestClientCustomizer&#xff0c;\u5bf9\u6240\u6709\u6ce8\u5165\u70b9\u62ff\u5230\u7684 Builder \u505a\u5e94\u7528\u7ea7\u589e\u91cf\u5b9a\u5236&#xff1b;<\/li>\n<li>\u9000\u56de\u6846\u67b6\u539f API&#xff1a;RestClient.create()\u2014\u2014\u6587\u6863\u539f\u8bdd\u7684\u610f\u601d\u662f&#xff1a;\u6b64\u65f6\u4e0d\u4f1a\u5e94\u7528\u81ea\u52a8\u914d\u7f6e&#xff0c;\u4e5f\u4e0d\u4f1a\u5e94\u7528 RestClientCustomizer\u3002<\/li>\n<p>\u5168\u5c40 HTTP \u5ba2\u6237\u7aef\u5c5e\u6027&#xff08;\u5bf9\u8d70\u81ea\u52a8\u914d\u7f6e\u7684\u5de5\u5382\u751f\u6548&#xff09;\u5305\u62ec&#xff1a;<\/p>\n<p><span class=\"token key atrule\">spring<\/span><span class=\"token punctuation\">:<\/span><br \/>\n  <span class=\"token key atrule\">http<\/span><span class=\"token punctuation\">:<\/span><br \/>\n    <span class=\"token key atrule\">client<\/span><span class=\"token punctuation\">:<\/span><br \/>\n      <span class=\"token key atrule\">connect-timeout<\/span><span class=\"token punctuation\">:<\/span> 2s<br \/>\n      <span class=\"token key atrule\">read-timeout<\/span><span class=\"token punctuation\">:<\/span> 1s<br \/>\n      <span class=\"token key atrule\">redirects<\/span><span class=\"token punctuation\">:<\/span> dont<span class=\"token punctuation\">&#8211;<\/span>follow<br \/>\n      <span class=\"token comment\"># factory: jdk   # \u9700\u8981\u65f6\u663e\u5f0f\u6307\u5b9a<\/span><\/p>\n<p>\u8bb0\u4e00\u53e5\u53e3\u8bc0&#xff1a;YAML \/ Customizer \u53ea\u670d\u52a1\u300c\u6ce8\u5165 Builder \u518d build\u300d\u8fd9\u6761\u8def&#xff1b;create() \u662f\u65c1\u8def\u3002 \u624b\u6413 JdkClientHttpRequestFactory \u518d\u585e\u8fdb\u81ea\u5efa RestClient&#xff0c;\u540c\u6837\u4e0d\u7ecf\u8fc7 Boot \u66ff\u4f60\u88c5\u914d\u597d\u7684\u90a3\u6761\u94fe\u3002\u8d85\u65f6\u548c\u865a\u7ebf\u7a0b\u76f8\u5173\u7684\u81ea\u52a8\u88c5\u914d&#xff0c;\u4e5f\u5c31\u8c08\u4e0d\u4e0a\u300c\u81ea\u52a8\u300d\u4e86\u3002<\/p>\n<p>\u8fd8\u6709\u4e09\u4e2a\u5bb9\u6613\u5224\u65ad\u9519\u7684\u8fb9\u754c&#xff1a;<\/p>\n<li>\u300c\u6211\u7528\u4e86 RestClient.builder()\u300d\u2260 \u6ce8\u5165\u4e86 Boot \u7684 Builder\u3002\u6846\u67b6\u9759\u6001 RestClient.builder() \u53ea\u662f\u65b0\u5efa\u4e00\u4e2a\u7a7a\u767d\u5efa\u9020\u8005&#xff1b;\u53ea\u6709\u5bb9\u5668\u91cc\u90a3\u4e2a\u9884\u914d\u7f6e\u539f\u578b Bean \u624d\u5e26\u7740 converters\u3001\u5de5\u5382\u4e0e\u5168\u5c40 spring.http.client.*\u3002<\/li>\n<li>classpath \u4e0a\u7684 HTTP \u5e93\u4f18\u5148\u7ea7&#xff08;Apache \u2192 Jetty \u2192 Reactor Netty \u2192 JDK \u2192 Simple&#xff09;\u53ea\u51b3\u5b9a\u300c\u81ea\u52a8\u914d\u7f6e\u4f1a\u9009\u8c01\u300d&#xff1b;\u4e00\u65e6\u4f60 create() \u6216\u624b\u6413\u5de5\u5382&#xff0c;\u8fd9\u6761\u68c0\u6d4b\u94fe\u5bf9\u4f60\u624b\u4e0a\u7684\u5b9e\u4f8b\u65e0\u6548\u3002<\/li>\n<li>\u6587\u6863\u91cc\u7684 Global HTTP Client Configuration&#xff08;\u542b ClientHttpRequestFactoryBuilderCustomizer&#xff09;\u540c\u6837\u4f5c\u7528\u5728\u81ea\u52a8\u914d\u7f6e\u94fe\u4e0a\u2014\u2014\u65c1\u8def\u5b9e\u4f8b\u5206\u4eab\u4e0d\u5230\u8fd9\u4e9b\u5b9a\u5236\u70b9\u3002<\/li>\n<p>\u8fd9\u4e09\u70b9\u8fde\u540c\u300c\u5f3a\u70c8\u5efa\u8bae\u6ce8\u5165 Builder\u300d\u4e00\u8d77\u770b&#xff1a;yaml \u591a\u534a\u6ca1\u5199\u9519&#xff0c;\u95ee\u9898\u51fa\u5728\u6839\u672c\u6ca1\u8d70\u8fdb Boot \u66ff\u4f60\u94fa\u597d\u7684\u90a3\u6761\u8def\u3002<\/p>\n<h3>\u4e09\u3001\u6700\u5c0f\u590d\u73b0&#xff1a;Builder vs create()<\/h3>\n<p>\u4f9d\u8d56\u7528 spring-boot-starter-web&#xff08;\u6216\u81f3\u5c11\u5e26\u4e0a RestClient \u6240\u9700\u7684 web \u5ba2\u6237\u7aef\u6808&#xff09;\u5373\u53ef\u3002\u5148\u5199\u4e00\u4efd\u300c\u770b\u8d77\u6765\u5f88\u5b8c\u6574\u300d\u7684\u914d\u7f6e&#xff1a;<\/p>\n<p><span class=\"token key atrule\">spring<\/span><span class=\"token punctuation\">:<\/span><br \/>\n  <span class=\"token key atrule\">threads<\/span><span class=\"token punctuation\">:<\/span><br \/>\n    <span class=\"token key atrule\">virtual<\/span><span class=\"token punctuation\">:<\/span><br \/>\n      <span class=\"token key atrule\">enabled<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token boolean important\">true<\/span><br \/>\n  <span class=\"token key atrule\">http<\/span><span class=\"token punctuation\">:<\/span><br \/>\n    <span class=\"token key atrule\">client<\/span><span class=\"token punctuation\">:<\/span><br \/>\n      <span class=\"token key atrule\">connect-timeout<\/span><span class=\"token punctuation\">:<\/span> 2s<br \/>\n      <span class=\"token key atrule\">read-timeout<\/span><span class=\"token punctuation\">:<\/span> 1s<br \/>\n      <span class=\"token key atrule\">factory<\/span><span class=\"token punctuation\">:<\/span> jdk<\/p>\n<p>\u518d\u5bf9\u6bd4\u4e24\u4e2a Bean&#xff1a;\u4e00\u4e2a\u8d70\u5b98\u65b9 Builder&#xff0c;\u4e00\u4e2a\u9759\u6001 create()\u3002<\/p>\n<p><span class=\"token keyword\">import<\/span> <span class=\"token import\"><span class=\"token namespace\">org<span class=\"token punctuation\">.<\/span>springframework<span class=\"token punctuation\">.<\/span>context<span class=\"token punctuation\">.<\/span>annotation<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">Bean<\/span><\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token import\"><span class=\"token namespace\">org<span class=\"token punctuation\">.<\/span>springframework<span class=\"token punctuation\">.<\/span>context<span class=\"token punctuation\">.<\/span>annotation<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">Configuration<\/span><\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token import\"><span class=\"token namespace\">org<span class=\"token punctuation\">.<\/span>springframework<span class=\"token punctuation\">.<\/span>web<span class=\"token punctuation\">.<\/span>client<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">RestClient<\/span><\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token annotation punctuation\">&#064;Configuration<\/span><span class=\"token punctuation\">(<\/span>proxyBeanMethods <span class=\"token operator\">&#061;<\/span> <span class=\"token boolean\">false<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">RestClientCompareConfig<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>    <span class=\"token comment\">\/** \u5b98\u65b9\u8def\u5f84&#xff1a;\u7ee7\u627f\u81ea\u52a8\u914d\u7f6e\u7684 converters \/ request factory \/ http.client.* *\/<\/span><br \/>\n    <span class=\"token annotation punctuation\">&#064;Bean<\/span><br \/>\n    <span class=\"token class-name\">RestClient<\/span> <span class=\"token function\">configuredClient<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">RestClient<span class=\"token punctuation\">.<\/span>Builder<\/span> builder<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> builder<span class=\"token punctuation\">.<\/span><span class=\"token function\">baseUrl<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;http:\/\/127.0.0.1:18080&#034;<\/span><span class=\"token punctuation\">)<\/span><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 comment\">\/** \u65c1\u8def&#xff1a;\u6587\u6863\u660e\u786e \u2014\u2014 \u65e0\u81ea\u52a8\u914d\u7f6e\u3001\u65e0 RestClientCustomizer *\/<\/span><br \/>\n    <span class=\"token annotation punctuation\">&#064;Bean<\/span><br \/>\n    <span class=\"token class-name\">RestClient<\/span> <span class=\"token function\">rawCreateClient<\/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\">RestClient<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">create<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;http:\/\/127.0.0.1:18080&#034;<\/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>\u672c\u5730\u7528\u4e00\u4e2a\u6545\u610f sleep \u8d85\u8fc7 1s \u7684\u4e0b\u6e38&#xff08;\u4efb\u610f stub \u5373\u53ef&#xff09;\u5206\u522b\u8c03\u7528&#xff1a;<\/p>\n<p><span class=\"token keyword\">import<\/span> <span class=\"token import\"><span class=\"token namespace\">org<span class=\"token punctuation\">.<\/span>springframework<span class=\"token punctuation\">.<\/span>boot<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">ApplicationRunner<\/span><\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token import\"><span class=\"token namespace\">org<span class=\"token punctuation\">.<\/span>springframework<span class=\"token punctuation\">.<\/span>context<span class=\"token punctuation\">.<\/span>annotation<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">Bean<\/span><\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token import\"><span class=\"token namespace\">org<span class=\"token punctuation\">.<\/span>springframework<span class=\"token punctuation\">.<\/span>context<span class=\"token punctuation\">.<\/span>annotation<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">Configuration<\/span><\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token import\"><span class=\"token namespace\">org<span class=\"token punctuation\">.<\/span>springframework<span class=\"token punctuation\">.<\/span>web<span class=\"token punctuation\">.<\/span>client<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">RestClient<\/span><\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token import\"><span class=\"token namespace\">org<span class=\"token punctuation\">.<\/span>springframework<span class=\"token punctuation\">.<\/span>web<span class=\"token punctuation\">.<\/span>client<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">ResourceAccessException<\/span><\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token annotation punctuation\">&#064;Configuration<\/span><span class=\"token punctuation\">(<\/span>proxyBeanMethods <span class=\"token operator\">&#061;<\/span> <span class=\"token boolean\">false<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token keyword\">class<\/span> <span class=\"token class-name\">ProbeConfig<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>    <span class=\"token annotation punctuation\">&#064;Bean<\/span><br \/>\n    <span class=\"token class-name\">ApplicationRunner<\/span> <span class=\"token function\">probe<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">RestClient<\/span> configuredClient<span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">RestClient<\/span> rawCreateClient<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> args <span class=\"token operator\">-&gt;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token function\">call<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;builder&#034;<\/span><span class=\"token punctuation\">,<\/span> configuredClient<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token function\">call<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;create&#034;<\/span><span class=\"token punctuation\">,<\/span> rawCreateClient<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <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\">static<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">call<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span> tag<span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">RestClient<\/span> client<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">long<\/span> t0 <span class=\"token operator\">&#061;<\/span> <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">nanoTime<\/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            client<span class=\"token punctuation\">.<\/span><span class=\"token function\">get<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">uri<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\/slow&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">retrieve<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">toBodilessEntity<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span>tag <span class=\"token operator\">&#043;<\/span> <span class=\"token string\">&#034; OK ms&#061;&#034;<\/span> <span class=\"token operator\">&#043;<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">nanoTime<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#8211;<\/span> t0<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">\/<\/span> <span class=\"token number\">1_000_000<\/span><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\">ResourceAccessException<\/span> ex<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span>tag <span class=\"token operator\">&#043;<\/span> <span class=\"token string\">&#034; TIMEOUT\/IO ms&#061;&#034;<\/span><br \/>\n                    <span class=\"token operator\">&#043;<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">nanoTime<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#8211;<\/span> t0<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">\/<\/span> <span class=\"token number\">1_000_000<\/span><br \/>\n                    <span class=\"token operator\">&#043;<\/span> <span class=\"token string\">&#034; -&gt; &#034;<\/span> <span class=\"token operator\">&#043;<\/span> ex<span class=\"token punctuation\">.<\/span><span class=\"token function\">getClass<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">getSimpleName<\/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><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u9884\u671f\u73b0\u8c61&#xff08;\u770b\u8d8b\u52bf&#xff0c;\u522b\u76ef\u56fa\u5b9a\u6beb\u79d2\u6570&#xff09;&#xff1a;<\/p>\n<ul>\n<li>configuredClient&#xff1a;\u5728 Boot \u5df2\u628a read-timeout: 1s \u63a5\u5230\u81ea\u52a8\u914d\u7f6e\u7684 ClientHttpRequestFactory \u65f6&#xff0c;\u6162\u63a5\u53e3\u66f4\u5bb9\u6613\u5728\u7ea6 1s \u91cf\u7ea7\u4ee5 I\/O \/ \u8d85\u65f6\u7c7b\u5f02\u5e38\u5931\u8d25&#xff1b;<\/li>\n<li>rawCreateClient&#xff1a;\u672a\u8d70\u81ea\u52a8\u914d\u7f6e&#xff0c;\u4e0d\u4f1a\u56e0\u4e3a\u4f60\u5199\u4e86 spring.http.client.read-timeout \u5c31\u81ea\u52a8\u5e26\u4e0a\u540c\u6837\u7684\u5de5\u5382\u8bbe\u7f6e\u2014\u2014\u8868\u73b0\u4e3a\u300c\u66f4\u50cf\u9ed8\u8ba4\u3001\u66f4\u62d6\u300d\u3002<\/li>\n<\/ul>\n<p>\u590d\u73b0\u65f6\u6ce8\u610f&#xff1a;\u4e0b\u6e38 sleep \u8981\u660e\u663e\u5927\u4e8e read-timeout&#xff08;\u4f8b\u5982 sleep 5s\u3001\u8d85\u65f6 1s&#xff09;&#xff0c;\u5e76\u5728\u540c\u4e00\u8fdb\u7a0b\u5185\u5148\u540e\u6253\u4e24\u6b21&#xff0c;\u514d\u5f97\u628a\u300c\u7f51\u7edc\u6296\u52a8\u300d\u8bef\u8bfb\u6210\u914d\u7f6e\u5dee\u5f02\u3002\u5982\u679c classpath \u4e0a\u8fd8\u6709 Apache HttpClient \u7b49\u66f4\u9ad8\u4f18\u5148\u7ea7\u5b9e\u73b0&#xff0c;\u800c yaml \u672a\u5199 factory: jdk&#xff0c;\u81ea\u52a8\u914d\u7f6e\u53ef\u80fd\u6839\u672c\u6ca1\u843d\u5230 JDK\u3002\u8fd9\u65f6\u5148\u56fa\u5b9a spring.http.client.factory&#xff0c;\u518d\u770b\u865a\u7ebf\u7a0b worker \u5f62\u6001&#xff0c;\u4e0d\u7136\u4e24\u8fb9\u6bd4\u7684\u4e0d\u662f\u540c\u4e00\u6761\u5ba2\u6237\u7aef\u6808\u3002<\/p>\n<p>\u82e5\u4f60\u8fd8\u624b\u5199\u4e86&#xff1a;<\/p>\n<p><span class=\"token keyword\">import<\/span> <span class=\"token import\"><span class=\"token namespace\">java<span class=\"token punctuation\">.<\/span>net<span class=\"token punctuation\">.<\/span>http<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">HttpClient<\/span><\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token import\"><span class=\"token namespace\">org<span class=\"token punctuation\">.<\/span>springframework<span class=\"token punctuation\">.<\/span>http<span class=\"token punctuation\">.<\/span>client<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">JdkClientHttpRequestFactory<\/span><\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token import\"><span class=\"token namespace\">org<span class=\"token punctuation\">.<\/span>springframework<span class=\"token punctuation\">.<\/span>web<span class=\"token punctuation\">.<\/span>client<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">RestClient<\/span><\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token class-name\">RestClient<\/span> handBuilt <span class=\"token operator\">&#061;<\/span> <span class=\"token class-name\">RestClient<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">builder<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">.<\/span><span class=\"token function\">requestFactory<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">new<\/span> <span class=\"token class-name\">JdkClientHttpRequestFactory<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">HttpClient<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">newHttpClient<\/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><span class=\"token function\">baseUrl<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;http:\/\/127.0.0.1:18080&#034;<\/span><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>\u8fd9\u91cc\u7528\u7684\u662f\u81ea\u5df1 new \u7684 JDK HttpClient \/ \u5de5\u5382&#xff0c;\u540c\u6837\u4e0d\u4f1a\u81ea\u52a8\u5403\u5230 Boot \u6839\u636e spring.http.client.* \u4e0e&#xff08;\u5728\u652f\u6301\u7248\u672c\u4e0a&#xff09;\u865a\u7ebf\u7a0b\u5f00\u5173\u88c5\u914d\u597d\u7684\u90a3\u4efd\u5de5\u5382\u3002\u6b63\u786e\u505a\u6cd5\u8fd8\u662f&#xff1a;\u6ce8\u5165 Boot \u7684 RestClient.Builder&#xff0c;\u6216\u901a\u8fc7\u6587\u6863\u7ed9\u51fa\u7684 ClientHttpRequestFactoryBuilder \/ ClientHttpRequestFactoryBuilderCustomizer \u53c2\u4e0e\u81ea\u52a8\u914d\u7f6e\u94fe\u3002<\/p>\n<p>\u53ef\u9009\u7684\u5e94\u7528\u7ea7 Customizer&#xff08;\u53ea\u5bf9 Builder \u8def\u5f84\u751f\u6548&#xff09;&#xff1a;<\/p>\n<p><span class=\"token keyword\">import<\/span> <span class=\"token import\"><span class=\"token namespace\">org<span class=\"token punctuation\">.<\/span>springframework<span class=\"token punctuation\">.<\/span>boot<span class=\"token punctuation\">.<\/span>web<span class=\"token punctuation\">.<\/span>client<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">RestClientCustomizer<\/span><\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token import\"><span class=\"token namespace\">org<span class=\"token punctuation\">.<\/span>springframework<span class=\"token punctuation\">.<\/span>context<span class=\"token punctuation\">.<\/span>annotation<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">Bean<\/span><\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token import\"><span class=\"token namespace\">org<span class=\"token punctuation\">.<\/span>springframework<span class=\"token punctuation\">.<\/span>context<span class=\"token punctuation\">.<\/span>annotation<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">Configuration<\/span><\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token import\"><span class=\"token namespace\">org<span class=\"token punctuation\">.<\/span>springframework<span class=\"token punctuation\">.<\/span>http<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">HttpHeaders<\/span><\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token annotation punctuation\">&#064;Configuration<\/span><span class=\"token punctuation\">(<\/span>proxyBeanMethods <span class=\"token operator\">&#061;<\/span> <span class=\"token boolean\">false<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">RestClientCustomizerConfig<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>    <span class=\"token annotation punctuation\">&#064;Bean<\/span><br \/>\n    <span class=\"token class-name\">RestClientCustomizer<\/span> <span class=\"token function\">demoCustomizer<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> builder <span class=\"token operator\">-&gt;<\/span> builder<span class=\"token punctuation\">.<\/span><span class=\"token function\">defaultHeader<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">HttpHeaders<\/span><span class=\"token punctuation\">.<\/span><span class=\"token constant\">USER_AGENT<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;demo-boot-restclient&#034;<\/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>\u5bf9 RestClient.create() \u51fa\u6765\u7684\u5b9e\u4f8b&#xff0c;\u8fd9\u4e2a Customizer \u4e0d\u4f1a\u88ab\u8c03\u7528\u2014\u2014\u6587\u6863\u5c31\u662f\u8fd9\u4e48\u89c4\u5b9a\u7684&#xff0c;\u522b\u5f53\u5076\u53d1 bug \u67e5\u3002<\/p>\n<h3>\u56db\u3001JDK HttpClient \u4e0e\u865a\u62df\u7ebf\u7a0b&#xff1a;3.5 vs 4.0<\/h3>\n<p>\u8d85\u65f6\u95ee\u9898\u7528\u300c\u6539\u6ce8\u5165 Builder\u300d\u901a\u5e38\u5c31\u80fd\u5bf9\u9f50\u3002\u865a\u62df\u7ebf\u7a0b\u8981\u518d\u62c6\u4e00\u5c42&#xff1a;\u8c01\u5728\u8dd1 JDK HttpClient \u7684\u963b\u585e\u9002\u914d \/ worker\u3002<\/p>\n<p>\u4f9d\u636e\u94fe&#xff08;\u6309\u8bae\u9898\u5f52\u5c5e&#xff0c;\u52ff\u6df7\u7248\u672c&#xff09;&#xff1a;<\/p>\n<table>\n<tr>\u4f9d\u636e\u8981\u70b9<\/tr>\n<tbody>\n<tr>\n<td>Framework #34393<\/td>\n<td>RestClient \u5305\u88c5\u5404 HTTP \u5e93&#xff1b;JDK HttpClient \u9700\u8981\u663e\u5f0f executor \u624d\u4f1a\u6309\u865a\u7ebf\u7a0b\u6a21\u578b\u8dd1<\/td>\n<\/tr>\n<tr>\n<td>Boot #45348<\/td>\n<td>\u5e0c\u671b\u300c\u5f00\u542f spring.threads.virtual.enabled \u65f6&#xff0c;\u81ea\u52a8\u914d\u7f6e\u7684 JDK \u5de5\u5382\u4e5f\u6302\u4e0a VT executor\u300d&#xff1b;\u540e\u7eed\u7531 PR \u843d\u5730<\/td>\n<\/tr>\n<tr>\n<td>Boot PR #46404<\/td>\n<td>\u5408\u5165 Spring Boot 4.0&#xff1a;\u5bf9\u81ea\u52a8\u914d\u7f6e\u4fa7\u7684 JDK ClientHttpRequestFactory \/ Builder \u8def\u5f84\u8865\u9f50\u865a\u7ebf\u7a0b executor<\/td>\n<\/tr>\n<tr>\n<td>Gateway #4150<\/td>\n<td>\u793e\u533a\u62a5\u544a&#xff1a;\u51fa\u7ad9 JDK HttpClient worker \u6c60\u5ffd\u7565 spring.threads.virtual.enabled\u3001\u4ecd\u89c1\u5e73\u53f0\u7ebf\u7a0b&#xff1b;\u7ef4\u62a4\u8005\u8ba8\u8bba\u6307\u5411 Boot \u4fa7\u4fee\u590d \/ \u663e\u5f0f virtual executor&#xff1b;\u8fd9\u91cc\u53ea\u4f5c\u75c7\u72b6\u5f52\u56e0\u53c2\u8003&#xff0c;\u4e0d\u5f53\u81ea\u6d4b\u57fa\u51c6<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u8fd8\u505c\u5728 Spring Boot 3.5 \u7684\u9879\u76ee&#xff0c;\u8bf4\u6cd5\u8981\u6536\u7740\u70b9&#xff1a;<\/p>\n<ul>\n<li>\u4e0d\u8981\u58f0\u79f0 PR #46404\u300c\u5df2\u7ecf\u5728 3.5 \u91cc\u751f\u6548\u300d&#xff1b;<\/li>\n<li>3.5 \u4e0a\u6ce8\u5165 RestClient.Builder&#xff0c;\u4ecd\u7136\u80fd\u62ff\u5230&#xff1a;\u6d88\u606f\u8f6c\u6362\u5668 &#043; \u5408\u9002\u7684\u8bf7\u6c42\u5de5\u5382 &#043; spring.http.client.* \u8d85\u65f6\/\u91cd\u5b9a\u5411\u7b49&#xff1b;<\/li>\n<li>JDK \u5ba2\u6237\u7aef\u7684 VT executor \u81ea\u52a8\u6302\u8f7d&#xff0c;\u8981\u4ee5 Boot 4.0 &#043; #46404 \u4e3a\u51c6&#xff1b;3.5 \u82e5\u5fc5\u987b\u8ba9 JDK HttpClient \u8dd1\u5728\u865a\u7ebf\u7a0b\u4e0a&#xff0c;\u9700\u8981\u81ea\u884c\u901a\u8fc7 HttpClient.Builder.executor(&#8230;)\u3001\u6216 ClientHttpRequestFactoryBuilderCustomizer \/ \u81ea\u5b9a\u4e49 ClientHttpRequestFactoryBuilder \u53c2\u4e0e\u88c5\u914d&#xff08;\u6587\u6863\u300cGlobal HTTP Client Configuration\u300d\u4e00\u8282\u7ed9\u7684\u5c31\u662f\u8fd9\u6761\u6269\u5c55\u70b9&#xff09;\u3002<\/li>\n<\/ul>\n<p>\u62c6\u6210\u4e24\u5f20\u8d26\u5355\u770b&#xff0c;\u4e0d\u5bb9\u6613\u8bf4\u9519\u8bdd&#xff1a;<\/p>\n<table>\n<tr>\u8d26\u5355Boot 3.5 &#043; \u6ce8\u5165 BuilderBoot 3.5 &#043; create()\/\u624b\u6413Boot 4.0 &#043; \u6ce8\u5165 Builder<\/tr>\n<tbody>\n<tr>\n<td>\u5168\u5c40 HTTP \u5ba2\u6237\u7aef\u8d85\u65f6<\/td>\n<td>spring.http.client.*&#xff0c;\u8d70\u81ea\u52a8\u914d\u7f6e\u5e94\u751f\u6548<\/td>\n<td>\u4e0d\u751f\u6548<\/td>\n<td>\u524d\u7f00\u6539\u4e3a spring.http.clients.*&#xff0c;\u5e94\u751f\u6548<\/td>\n<\/tr>\n<tr>\n<td>RestClientCustomizer<\/td>\n<td>\u5e94\u7528<\/td>\n<td>\u4e0d\u5e94\u7528<\/td>\n<td>\u5e94\u7528<\/td>\n<\/tr>\n<tr>\n<td>JDK HttpClient VT executor<\/td>\n<td>\u9700\u81ea\u6302 \/ \u81ea\u5b9a\u4e49<\/td>\n<td>\u9ed8\u8ba4\u5e73\u53f0\u7ebf\u7a0b\u6c60\u503e\u5411<\/td>\n<td>#46404 \u81ea\u52a8\u6302\u8f7d&#xff08;\u4ecd\u987b Builder&#xff09;<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Gateway #4150 \u91cc\u7ef4\u62a4\u8005\u8ba8\u8bba\u628a\u300c\u51fa\u7ad9 JDK worker \u4ecd\u662f\u5e73\u53f0\u7ebf\u7a0b\u300d\u6307\u5411 Boot \u4fa7\u4fee\u590d\u6216\u663e\u5f0f virtual executor\u2014\u2014\u8fd9\u4e0e\u4e0a\u8868\u4e00\u81f4&#xff1a;\u5f00\u5173\u5f00\u4e86 \u2260 \u6240\u6709 HTTP \u5ba2\u6237\u7aef\u5b9e\u73b0\u90fd\u81ea\u52a8\u5403\u5230\u3002\u5f15\u7528\u8be5 issue \u65f6\u8bf7\u6807\u660e\u300c\u793e\u533a\u62a5\u544a\u7684\u75c7\u72b6\u300d&#xff0c;\u4e0d\u8981\u6539\u5199\u6210\u300c\u6211\u4eec\u538b\u6d4b\u63d0\u5347\u4e86\u82e5\u5e72\u500d\u300d\u3002<\/p>\n<p>\u793a\u610f&#xff08;3.5 \u81ea\u5236 executor&#xff0c;\u4ec5\u6f14\u793a\u65b9\u5411&#xff0c;\u6309\u4f60\u4eec\u5e95\u5ea7\u5fae\u8c03&#xff09;&#xff1a;<\/p>\n<p><span class=\"token keyword\">import<\/span> <span class=\"token import\"><span class=\"token namespace\">java<span class=\"token punctuation\">.<\/span>net<span class=\"token punctuation\">.<\/span>http<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">HttpClient<\/span><\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token import\"><span class=\"token namespace\">java<span class=\"token punctuation\">.<\/span>util<span class=\"token punctuation\">.<\/span>concurrent<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">Executors<\/span><\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token import\"><span class=\"token namespace\">org<span class=\"token punctuation\">.<\/span>springframework<span class=\"token punctuation\">.<\/span>boot<span class=\"token punctuation\">.<\/span>http<span class=\"token punctuation\">.<\/span>client<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">ClientHttpRequestFactoryBuilder<\/span><\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token import\"><span class=\"token namespace\">org<span class=\"token punctuation\">.<\/span>springframework<span class=\"token punctuation\">.<\/span>context<span class=\"token punctuation\">.<\/span>annotation<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">Bean<\/span><\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token import\"><span class=\"token namespace\">org<span class=\"token punctuation\">.<\/span>springframework<span class=\"token punctuation\">.<\/span>context<span class=\"token punctuation\">.<\/span>annotation<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">Configuration<\/span><\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token annotation punctuation\">&#064;Configuration<\/span><span class=\"token punctuation\">(<\/span>proxyBeanMethods <span class=\"token operator\">&#061;<\/span> <span class=\"token boolean\">false<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">JdkVtClientConfig<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>    <span class=\"token annotation punctuation\">&#064;Bean<\/span><br \/>\n    <span class=\"token class-name\">ClientHttpRequestFactoryBuilder<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token operator\">?<\/span><span class=\"token punctuation\">&gt;<\/span><\/span> <span class=\"token function\">jdkWithVirtualExecutor<\/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\">ClientHttpRequestFactoryBuilder<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">jdk<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n                <span class=\"token punctuation\">.<\/span><span class=\"token function\">withHttpClientCustomizer<\/span><span class=\"token punctuation\">(<\/span>builder <span class=\"token operator\">-&gt;<\/span><br \/>\n                        builder<span class=\"token punctuation\">.<\/span><span class=\"token function\">executor<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Executors<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">newVirtualThreadPerTaskExecutor<\/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 punctuation\">}<\/span><\/p>\n<p>\u5347\u7ea7\u5230 Boot 4.0 \u540e&#xff1a;\u5728 spring.threads.virtual.enabled&#061;true \u4e14\u8d70\u81ea\u52a8\u914d\u7f6e Builder \u65f6&#xff0c;JDK \u5de5\u5382\u4fa7\u7684 VT executor \u7531 #46404 \u8865\u9f50&#xff1b;\u4f46 RestClient.create() \u4f9d\u7136\u7ed5\u8fc7\u81ea\u52a8\u914d\u7f6e\u2014\u2014\u7248\u672c\u5347\u7ea7\u89e3\u51b3\u4e0d\u4e86\u300c\u4f60\u6839\u672c\u6ca1\u8d70 Builder\u300d\u8fd9\u4e2a\u95ee\u9898\u3002\u53e6\u5916&#xff0c;4.x \u6587\u6863\u91cc\u5168\u5c40\u5c5e\u6027\u524d\u7f00\u5df2\u6539\u6210 spring.http.clients.*&#xff08;\u591a\u4e86\u4e2a s&#xff09;&#xff0c;\u5347\u7ea7\u65f6\u8bb0\u5f97\u4e00\u5e76\u8fc1\u79fb YAML&#xff0c;\u5426\u5219\u8d85\u65f6\u540c\u6837\u4f1a\u300c\u5199\u4e86\u6ca1\u751f\u6548\u300d\u3002<\/p>\n<h3>\u4e94\u3001\u6392\u969c\u6e05\u5355<\/h3>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/10\/20261026130154-6adf4f422da8d.png\" alt=\"\u8d85\u65f6\u672a\u751f\u6548\u4e0e\u5e73\u53f0\u7ebf\u7a0b Worker \u7684\u6392\u969c\u51b3\u7b56\u6811\" \/><\/p>\n<p>\u6309\u987a\u5e8f\u67e5&#xff0c;\u907f\u514d\u4e00\u4e0a\u6765\u6539 JVM \u6216\u4e0b\u6e38&#xff1a;<\/p>\n<li>\u641c\u521b\u5efa\u8def\u5f84&#xff1a;\u5168\u4ed3\u5e93\u641c RestClient.create(\u3001new JdkClientHttpRequestFactory\u3001\u4ee5\u53ca\u662f\u5426\u7ed5\u8fc7\u6ce8\u5165\u3001\u5728\u5de5\u5177\u7c7b\u91cc\u9759\u6001 new&#xff1b;<\/li>\n<li>\u6539\u5b98\u65b9\u8def\u5f84&#xff1a;\u4e1a\u52a1\u5ba2\u6237\u7aef\u6539\u4e3a\u6ce8\u5165 RestClient.Builder&#xff08;\u6216 clone \u540e\u518d baseUrl&#xff09;&#xff0c;\u786e\u8ba4 RestClientCustomizer \u662f\u5426\u6309\u9884\u671f\u6267\u884c&#xff08;\u4f8b\u5982\u9ed8\u8ba4 Header \u662f\u5426\u51fa\u73b0&#xff09;&#xff1b;<\/li>\n<li>\u6838\u5bf9\u5168\u5c40\u5c5e\u6027&#xff1a;spring.http.client.connect-timeout \/ read-timeout \/ redirects \/ factory \u662f\u5426\u88ab profile \/ \u73af\u5883\u53d8\u91cf\u8986\u76d6&#xff1b;factory&#061;jdk \u65f6\u624d\u8fdb\u5165 JDK \u4e13\u7528\u8ba8\u8bba&#xff1b;<\/li>\n<li>\u533a\u5206\u8d85\u65f6 vs VT&#xff1a;Builder \u4fee\u590d\u540e\u8d85\u65f6\u5df2\u6b63\u5e38\u3001\u4ec5 worker \u4ecd\u662f\u5e73\u53f0\u7ebf\u7a0b \u2192 \u67e5 Boot \u5927\u7248\u672c\u30023.5&#xff1a;\u81ea\u5b9a\u4e49 executor \/ BuilderCustomizer&#xff1b;4.0&#043;&#xff1a;\u786e\u8ba4\u5df2\u542f\u7528\u865a\u7ebf\u7a0b\u5f00\u5173\u4e14\u4ecd\u8d70 Builder&#xff08;\u53c2\u8003 #46404&#xff0c;\u4ee5\u53ca Gateway #4150 \u7684\u540c\u7c7b\u793e\u533a\u75c7\u72b6\u63cf\u8ff0&#xff09;&#xff1b;<\/li>\n<li>\u89c2\u6d4b\u624b\u6bb5&#xff1a;\u5bf9\u6bd4 create vs Builder \u7684\u5931\u8d25\u8017\u65f6&#xff1b;jstack \u770b HttpClient \u76f8\u5173\u7ebf\u7a0b\u662f\u5426\u4ecd\u4e3a\u5e73\u53f0\u7ebf\u7a0b\u3002\u4e0d\u8981\u7528\u672a\u7ecf\u9a8c\u8bc1\u7684\u300c\u63d0\u5347 N \u500d\u300d\u5f53\u7ed3\u8bba&#xff1b;<\/li>\n<li>Code Review \u62a4\u680f&#xff1a;\u7981\u6b62\u5728\u65b0\u4ee3\u7801\u91cc\u76f4\u63a5 RestClient.create() \u8bbf\u95ee\u9700\u7edf\u4e00\u8d85\u65f6\/\u89c2\u6d4b\u7684\u4e0b\u6e38&#xff1b;\u6d4b\u8bd5\u91cc\u82e5\u7528 create()&#xff0c;\u6ce8\u660e\u300c\u6545\u610f\u65c1\u8def&#xff0c;\u4e0d\u9a8c\u8bc1 Boot \u8d85\u65f6\u300d&#xff1b;<\/li>\n<li>\u9759\u6001\u5de5\u5177\u7c7b\u8fc1\u79fb&#xff1a;\u628a static RestClient \u6539\u6210 Spring \u7ba1\u7406\u7684 Bean&#xff08;\u6216\u5728 &#064;PostConstruct \/ \u914d\u7f6e\u7c7b\u91cc\u7528\u6ce8\u5165\u7684 Builder \u6784\u5efa\u4e00\u6b21&#xff09;&#xff0c;\u907f\u514d\u7c7b\u52a0\u8f7d\u671f\u5c31 create() \u5b9a\u7ec8\u8eab&#xff1b;<\/li>\n<li>\u7248\u672c\u6c9f\u901a&#xff1a;\u5411\u56e2\u961f\u540c\u6b65\u65f6\u5206\u5f00\u8bb2\u2014\u2014\u300c\u8d85\u65f6 \/ Customizer \u2192 \u6c38\u8fdc\u770b\u662f\u5426\u6ce8\u5165 Builder\u300d&#xff1b;\u300cJDK VT \u81ea\u52a8\u6302\u8f7d \u2192 \u770b\u662f\u5426 Boot 4.0&#043;#46404\u300d\u3002\u6df7\u5728\u4e00\u53e5\u8bdd\u91cc\u6700\u5bb9\u6613\u628a 4.0 \u7684\u4fee\u590d\u8bef\u4f20\u5230 3.5 \u5347\u7ea7\u8bf4\u660e\u91cc\u3002<\/li>\n<h3>\u516d\u3001\u5c0f\u7ed3<\/h3>\n<p>RestClient.create()&#xff08;\u4ee5\u53ca\u624b\u6413 JDK \u8bf7\u6c42\u5de5\u5382&#xff09;\u4f1a\u5b8c\u6574\u7ed5\u8fc7 Spring Boot \u7684 RestClient \u81ea\u52a8\u914d\u7f6e\u4e0e RestClientCustomizer&#xff0c;\u6240\u4ee5 spring.http.client.* \u8d85\u65f6\u300c\u5199\u4e86\u4e5f\u4e0d\u751f\u6548\u300d\u3002\u5b98\u65b9\u7ed9\u7684\u4fee\u6cd5\u662f\u6ce8\u5165\u539f\u578b RestClient.Builder&#xff0c;\u518d\u5199\u4e00\u904d YAML 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