{"id":33436,"date":"2025-04-27T16:25:29","date_gmt":"2025-04-27T08:25:29","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/33436.html"},"modified":"2025-04-27T16:25:29","modified_gmt":"2025-04-27T08:25:29","slug":"java%e6%b8%b8%e6%88%8f%e5%90%8e%e7%ab%af%e7%9a%84%e6%89%9b%e5%8e%8b%e7%a7%98%e7%b1%8d%ef%bc%9a5%e6%ad%a5%e8%ae%a9%e6%9c%8d%e5%8a%a1%e5%99%a8%e6%89%9b%e4%bd%8f%e7%99%be%e4%b8%87","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/33436.html","title":{"rendered":"Java\u6e38\u620f\u540e\u7aef\u7684\u201c\u625b\u538b\u79d8\u7c4d\u201d\uff1a5\u6b65\u8ba9\u670d\u52a1\u5668\u625b\u4f4f\u767e\u4e07\u73a9\u5bb6\uff01"},"content":{"rendered":"<p>&#x1f525;\u5173\u6ce8\u58a8\u747e\u8f69&#xff0c;\u5e26\u4f60\u63a2\u7d22\u7f16\u7a0b\u7684\u5965\u79d8&#xff01;&#x1f680; &#x1f525;\u8d85\u840c\u6280\u672f\u653b\u7565&#xff0c;\u8f7b\u677e\u664b\u7ea7\u7f16\u7a0b\u9ad8\u624b&#x1f680; &#x1f525;\u6280\u672f\u5b9d\u5e93\u5df2\u5907\u597d&#xff0c;\u5c31\u7b49\u4f60\u6765\u6316\u6398&#x1f680; &#x1f525;\u8ba2\u9605\u58a8\u747e\u8f69&#xff0c;\u667a\u8da3\u5b66\u4e60\u4e0d\u5b64\u5355&#x1f680; &#x1f525;\u5373\u523b\u542f\u822a&#xff0c;\u7f16\u7a0b\u4e4b\u65c5\u66f4\u6709\u8da3&#x1f680;<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250427082527-680de9f775718.jpg\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250427082528-680de9f8ba96c.gif\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<h4>\u4e00\u3001Step 1&#xff1a;\u57fa\u7840\u67b6\u6784\u642d\u5efa\u2014\u2014\u201c\u5efa\u597d\u670d\u52a1\u5668\u96c6\u7fa4\u201d<\/h4>\n<h5>1.1 \u80cc\u666f&#xff1a;<\/h5>\n<p>\u6848\u4f8b&#xff1a; \u5355\u53f0\u670d\u52a1\u5668\u625b\u4e0d\u4f4f\u4e07\u4eba\u540c\u65f6\u5728\u7ebf&#xff1f;\u7528\u96c6\u7fa4\u50cf\u201c\u5efa\u591a\u4e2a\u526f\u672c\u201d\u4e00\u6837\u5206\u6563\u538b\u529b&#xff01; \u6838\u5fc3\u5de5\u5177&#xff1a; Spring Boot &#043; Netty &#043; Redis&#xff01;<\/p>\n<h5>1.2 \u4ee3\u7801\u5b9e\u6218&#xff1a;\u591a\u670d\u52a1\u5668\u96c6\u7fa4\u642d\u5efa<\/h5>\n<p>\u6b65\u9aa4&#xff1a;<\/p>\n<li>\u65b0\u5efaSpring Boot\u9879\u76ee&#xff0c;\u6dfb\u52a0\u4f9d\u8d56&#xff1a;<\/li>\n<p> <span class=\"token comment\">&lt;!&#8211; pom.xml &#8211;&gt;<\/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><br \/>\n    <span class=\"token comment\">&lt;!&#8211; Spring Boot Starter &#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.springframework.boot<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>spring-boot-starter<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>dependency<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><\/p>\n<p>    <span class=\"token comment\">&lt;!&#8211; Netty Websocket &#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>io.netty<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>netty-all<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>4.1.93.Final<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; Redis\u96c6\u7fa4 &#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.springframework.data<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>spring-data-redis<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>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<p>\u6ce8\u91ca&#xff1a;<\/p>\n<ul>\n<li>Netty\u5904\u7406\u9ad8\u5e76\u53d1\u7f51\u7edc\u8bf7\u6c42&#xff0c;Redis\u5b58\u50a8\u670d\u52a1\u5668\u72b6\u6001\u3002<\/li>\n<\/ul>\n<h5>1.3 \u542f\u52a8\u7c7b\u914d\u7f6e<\/h5>\n<p> <span class=\"token comment\">\/\/ Application.java<\/span><br \/>\n<span class=\"token annotation punctuation\">&#064;SpringBootApplication<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">GameServerApplication<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span><span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span> args<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token class-name\">SpringApplication<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">run<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">GameServerApplication<\/span><span class=\"token punctuation\">.<\/span><span class=\"token keyword\">class<\/span><span class=\"token punctuation\">,<\/span> args<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>\u6ce8\u91ca&#xff1a;<\/p>\n<ul>\n<li>\u7b80\u5355\u7684Spring Boot\u542f\u52a8\u7c7b&#xff0c;\u540e\u7eed\u6dfb\u52a0\u8d1f\u8f7d\u5747\u8861\u903b\u8f91&#xff01;<\/li>\n<\/ul>\n<hr \/>\n<h4>\u4e8c\u3001Step 2&#xff1a;\u8f6e\u8be2\u7b97\u6cd5\u2014\u2014\u201c\u73a9\u5bb6\u8f6e\u6d41\u8fdb\u526f\u672c\u201d<\/h4>\n<h5>2.1 \u80cc\u666f&#xff1a;<\/h5>\n<p>\u6848\u4f8b&#xff1a; \u73a9\u5bb6\u968f\u673a\u5206\u914d\u5230\u670d\u52a1\u5668&#xff1f;\u7528\u8f6e\u8be2\u50cf\u201c\u6392\u961f\u53eb\u53f7\u201d\u4e00\u6837\u516c\u5e73\u5206\u914d&#xff01;<\/p>\n<h5>2.2 \u4ee3\u7801\u5b9e\u6218&#xff1a;\u8f6e\u8be2\u7b97\u6cd5\u5b9e\u73b0<\/h5>\n<p> <span class=\"token comment\">\/\/ RoundRobinBalancer.java<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">RoundRobinBalancer<\/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\">List<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token class-name\">Server<\/span><span class=\"token punctuation\">&gt;<\/span><\/span> servers <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">ArrayList<\/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    <span class=\"token keyword\">private<\/span> <span class=\"token keyword\">int<\/span> currentIndex <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">synchronized<\/span> <span class=\"token class-name\">Server<\/span> <span class=\"token function\">selectServer<\/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>servers<span class=\"token punctuation\">.<\/span><span class=\"token function\">isEmpty<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token keyword\">return<\/span> <span class=\"token keyword\">null<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token class-name\">Server<\/span> selected <span class=\"token operator\">&#061;<\/span> servers<span class=\"token punctuation\">.<\/span><span class=\"token function\">get<\/span><span class=\"token punctuation\">(<\/span>currentIndex<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        currentIndex <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">(<\/span>currentIndex <span class=\"token operator\">&#043;<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">%<\/span> servers<span class=\"token punctuation\">.<\/span><span class=\"token function\">size<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> selected<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\">addServer<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Server<\/span> server<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        servers<span class=\"token punctuation\">.<\/span><span class=\"token function\">add<\/span><span class=\"token punctuation\">(<\/span>server<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>\u6ce8\u91ca&#xff1a;<\/p>\n<ul>\n<li>synchronized\u4fdd\u8bc1\u7ebf\u7a0b\u5b89\u5168&#xff0c;currentIndex\u5faa\u73af\u9012\u589e\u53d6\u6a21&#xff01;<\/li>\n<\/ul>\n<h5>2.3 \u96c6\u6210\u5230\u6e38\u620f\u767b\u5f55\u6d41\u7a0b<\/h5>\n<p> <span class=\"token comment\">\/\/ GameLoginService.java<\/span><br \/>\n<span class=\"token annotation punctuation\">&#064;Service<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">GameLoginService<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token annotation punctuation\">&#064;Autowired<\/span><br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token class-name\">RoundRobinBalancer<\/span> balancer<span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token keyword\">public<\/span> <span class=\"token class-name\">Server<\/span> <span class=\"token function\">loginPlayer<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span> playerId<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token class-name\">Server<\/span> server <span class=\"token operator\">&#061;<\/span> balancer<span class=\"token punctuation\">.<\/span><span class=\"token function\">selectServer<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token comment\">\/\/ \u8bb0\u5f55\u73a9\u5bb6\u4e0e\u670d\u52a1\u5668\u7684\u7ed1\u5b9a\u5173\u7cfb&#xff08;\u5982Redis&#xff09;<\/span><br \/>\n        redisTemplate<span class=\"token punctuation\">.<\/span><span class=\"token function\">opsForHash<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">put<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;player_servers&#034;<\/span><span class=\"token punctuation\">,<\/span> playerId<span class=\"token punctuation\">,<\/span> server<span class=\"token punctuation\">.<\/span><span class=\"token function\">getId<\/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> server<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u6ce8\u91ca&#xff1a;<\/p>\n<ul>\n<li>\u767b\u5f55\u65f6\u9009\u62e9\u670d\u52a1\u5668&#xff0c;\u7528Redis\u5b58\u50a8\u73a9\u5bb6-\u670d\u52a1\u5668\u6620\u5c04&#xff01;<\/li>\n<\/ul>\n<hr \/>\n<h4>\u4e09\u3001Step 3&#xff1a;\u52a0\u6743\u8f6e\u8be2\u2014\u2014\u201c\u670d\u52a1\u5668\u80fd\u529b\u4e0d\u540c&#xff0c;\u5206\u914d\u6bd4\u4f8b\u4e5f\u4e0d\u540c\u201d<\/h4>\n<h5>3.1 \u80cc\u666f&#xff1a;<\/h5>\n<p>\u6848\u4f8b&#xff1a; \u670d\u52a1\u5668A\u662f\u201c\u9876\u914d\u673a\u201d&#xff0c;\u670d\u52a1\u5668B\u662f\u201c\u8001\u53e4\u8463\u201d&#xff1f;\u7528\u52a0\u6743\u8f6e\u8be2\u50cf\u201c\u6309\u80fd\u529b\u5206\u914d\u4efb\u52a1\u201d&#xff01;<\/p>\n<h5>3.2 \u4ee3\u7801\u5b9e\u6218&#xff1a;\u52a0\u6743\u8f6e\u8be2\u7b97\u6cd5<\/h5>\n<p> <span class=\"token comment\">\/\/ WeightedRoundRobinBalancer.java<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">WeightedRoundRobinBalancer<\/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\">List<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token class-name\">Server<\/span><span class=\"token punctuation\">&gt;<\/span><\/span> servers <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">ArrayList<\/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    <span class=\"token keyword\">private<\/span> <span class=\"token keyword\">final<\/span> <span class=\"token class-name\">List<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token class-name\">Integer<\/span><span class=\"token punctuation\">&gt;<\/span><\/span> weightSum <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">ArrayList<\/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    <span class=\"token keyword\">private<\/span> <span class=\"token keyword\">int<\/span> totalWeight <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">synchronized<\/span> <span class=\"token class-name\">Server<\/span> <span class=\"token function\">selectServer<\/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>servers<span class=\"token punctuation\">.<\/span><span class=\"token function\">isEmpty<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token keyword\">return<\/span> <span class=\"token keyword\">null<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token keyword\">int<\/span> random <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Random<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">nextInt<\/span><span class=\"token punctuation\">(<\/span>totalWeight<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> weightSum<span class=\"token punctuation\">.<\/span><span class=\"token function\">size<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><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            <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>random <span class=\"token operator\">&lt;<\/span> weightSum<span class=\"token punctuation\">.<\/span><span class=\"token function\">get<\/span><span class=\"token punctuation\">(<\/span>i<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n                <span class=\"token keyword\">return<\/span> servers<span class=\"token punctuation\">.<\/span><span class=\"token function\">get<\/span><span class=\"token punctuation\">(<\/span>i<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 keyword\">return<\/span> servers<span class=\"token punctuation\">.<\/span><span class=\"token function\">get<\/span><span class=\"token punctuation\">(<\/span>servers<span class=\"token punctuation\">.<\/span><span class=\"token function\">size<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#8211;<\/span> <span class=\"token number\">1<\/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\">addServer<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Server<\/span> server<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">int<\/span> weight<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        servers<span class=\"token punctuation\">.<\/span><span class=\"token function\">add<\/span><span class=\"token punctuation\">(<\/span>server<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        totalWeight <span class=\"token operator\">&#043;&#061;<\/span> weight<span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>weightSum<span class=\"token punctuation\">.<\/span><span class=\"token function\">isEmpty<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            weightSum<span class=\"token punctuation\">.<\/span><span class=\"token function\">add<\/span><span class=\"token punctuation\">(<\/span>weight<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            weightSum<span class=\"token punctuation\">.<\/span><span class=\"token function\">add<\/span><span class=\"token punctuation\">(<\/span>weightSum<span class=\"token punctuation\">.<\/span><span class=\"token function\">get<\/span><span class=\"token punctuation\">(<\/span>weightSum<span class=\"token punctuation\">.<\/span><span class=\"token function\">size<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#8211;<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#043;<\/span> weight<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>\u6ce8\u91ca&#xff1a;<\/p>\n<ul>\n<li>weightSum\u8bb0\u5f55\u6743\u91cd\u7d2f\u52a0\u548c&#xff0c;random\u968f\u673a\u6570\u5339\u914d\u6743\u91cd\u533a\u95f4&#xff01;<\/li>\n<\/ul>\n<h5>3.3 \u52a8\u6001\u6743\u91cd\u8c03\u6574<\/h5>\n<p> <span class=\"token comment\">\/\/ \u6839\u636e\u670d\u52a1\u5668\u8d1f\u8f7d\u52a8\u6001\u66f4\u65b0\u6743\u91cd<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">updateWeight<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Server<\/span> server<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">int<\/span> newWeight<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">int<\/span> oldWeight <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">.<\/span><span class=\"token punctuation\">.<\/span><span class=\"token punctuation\">.<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u83b7\u53d6\u65e7\u6743\u91cd<\/span><br \/>\n    totalWeight <span class=\"token operator\">&#043;&#061;<\/span> newWeight <span class=\"token operator\">&#8211;<\/span> oldWeight<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u91cd\u65b0\u8ba1\u7b97weightSum<\/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> servers<span class=\"token punctuation\">.<\/span><span class=\"token function\">indexOf<\/span><span class=\"token punctuation\">(<\/span>server<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> i <span class=\"token operator\">&lt;<\/span> weightSum<span class=\"token punctuation\">.<\/span><span class=\"token function\">size<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><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        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>i <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            weightSum<span class=\"token punctuation\">.<\/span><span class=\"token function\">set<\/span><span class=\"token punctuation\">(<\/span>i<span class=\"token punctuation\">,<\/span> newWeight<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            weightSum<span class=\"token punctuation\">.<\/span><span class=\"token function\">set<\/span><span class=\"token punctuation\">(<\/span>i<span class=\"token punctuation\">,<\/span> weightSum<span class=\"token punctuation\">.<\/span><span class=\"token function\">get<\/span><span class=\"token punctuation\">(<\/span>i<span class=\"token operator\">&#8211;<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#043;<\/span> servers<span class=\"token punctuation\">.<\/span><span class=\"token function\">get<\/span><span class=\"token punctuation\">(<\/span>i<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">getWeight<\/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>\u6ce8\u91ca&#xff1a;<\/p>\n<ul>\n<li>\u5b9a\u671f\u68c0\u67e5\u670d\u52a1\u5668CPU\/\u5185\u5b58&#xff0c;\u52a8\u6001\u8c03\u6574\u6743\u91cd&#xff01;<\/li>\n<\/ul>\n<hr \/>\n<h4>\u56db\u3001Step 4&#xff1a;\u4e00\u81f4\u6027\u54c8\u5e0c\u2014\u2014\u201c\u73a9\u5bb6\u6c38\u8fdc\u8fdb\u540c\u4e00\u4e2a\u526f\u672c\u201d<\/h4>\n<h5>4.1 \u80cc\u666f&#xff1a;<\/h5>\n<p>\u6848\u4f8b&#xff1a; \u73a9\u5bb6A\u767b\u5f55\u65f6\u88ab\u5206\u914d\u5230\u670d\u52a1\u56681&#xff0c;\u4e0b\u6b21\u767b\u5f55\u5374\u5230\u4e86\u670d\u52a1\u56682&#xff1f;\u7528\u4e00\u81f4\u6027\u54c8\u5e0c\u50cf\u201cGPS\u5b9a\u4f4d\u201d\u4e00\u6837\u56fa\u5b9a\u5206\u914d&#xff01;<\/p>\n<h5>4.2 \u4ee3\u7801\u5b9e\u6218&#xff1a;\u4e00\u81f4\u6027\u54c8\u5e0c\u5b9e\u73b0<\/h5>\n<p> <span class=\"token comment\">\/\/ ConsistentHashBalancer.java<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">ConsistentHashBalancer<\/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\">TreeMap<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token class-name\">Long<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">Server<\/span><span class=\"token punctuation\">&gt;<\/span><\/span> circle <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">TreeMap<\/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    <span class=\"token keyword\">private<\/span> <span class=\"token keyword\">final<\/span> <span class=\"token keyword\">int<\/span> virtualNodes <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">160<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u865a\u62df\u8282\u70b9\u6570<\/span><\/p>\n<p>    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">addServer<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Server<\/span> server<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> virtualNodes<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            <span class=\"token class-name\">String<\/span> nodeName <span class=\"token operator\">&#061;<\/span> server<span class=\"token punctuation\">.<\/span><span class=\"token function\">getId<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#043;<\/span> <span class=\"token string\">&#034;-&#034;<\/span> <span class=\"token operator\">&#043;<\/span> i<span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token keyword\">long<\/span> hash <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">hash<\/span><span class=\"token punctuation\">(<\/span>nodeName<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            circle<span class=\"token punctuation\">.<\/span><span class=\"token function\">put<\/span><span class=\"token punctuation\">(<\/span>hash<span class=\"token punctuation\">,<\/span> server<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\">Server<\/span> <span class=\"token function\">selectServer<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span> playerId<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">long<\/span> hash <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">hash<\/span><span class=\"token punctuation\">(<\/span>playerId<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token comment\">\/\/ \u627e\u5230\u5927\u4e8e\u7b49\u4e8ehash\u7684\u6700\u5c0f\u8282\u70b9<\/span><br \/>\n        <span class=\"token class-name\">Long<\/span> node <span class=\"token operator\">&#061;<\/span> circle<span class=\"token punctuation\">.<\/span><span class=\"token function\">ceilingKey<\/span><span class=\"token punctuation\">(<\/span>hash<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> node <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token keyword\">null<\/span> <span class=\"token operator\">?<\/span> circle<span class=\"token punctuation\">.<\/span><span class=\"token function\">firstEntry<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">getValue<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">:<\/span> circle<span class=\"token punctuation\">.<\/span><span class=\"token function\">get<\/span><span class=\"token punctuation\">(<\/span>node<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\">long<\/span> <span class=\"token function\">hash<\/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 comment\">\/\/ \u4f7f\u7528Murmur3\u7b97\u6cd5&#xff08;\u6b64\u5904\u7b80\u5316\u4e3a\u7b80\u5355\u54c8\u5e0c&#xff09;<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> key<span class=\"token punctuation\">.<\/span><span class=\"token function\">hashCode<\/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>\u6ce8\u91ca&#xff1a;<\/p>\n<ul>\n<li>virtualNodes\u865a\u62df\u8282\u70b9\u89e3\u51b3\u8282\u70b9\u5206\u5e03\u4e0d\u5747\u95ee\u9898&#xff01;<\/li>\n<\/ul>\n<h5>4.3 \u7ed3\u5408\u73a9\u5bb6ID\u5206\u914d<\/h5>\n<p> <span class=\"token comment\">\/\/ GameLoginService.java&#xff08;\u4f7f\u7528\u4e00\u81f4\u6027\u54c8\u5e0c&#xff09;<\/span><br \/>\n<span class=\"token annotation punctuation\">&#064;Service<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">GameLoginService<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token annotation punctuation\">&#064;Autowired<\/span><br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token class-name\">ConsistentHashBalancer<\/span> balancer<span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token keyword\">public<\/span> <span class=\"token class-name\">Server<\/span> <span class=\"token function\">loginPlayer<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span> playerId<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token class-name\">Server<\/span> server <span class=\"token operator\">&#061;<\/span> balancer<span class=\"token punctuation\">.<\/span><span class=\"token function\">selectServer<\/span><span class=\"token punctuation\">(<\/span>playerId<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token comment\">\/\/ \u8bb0\u5f55\u73a9\u5bb6\u4e0e\u670d\u52a1\u5668\u7ed1\u5b9a&#xff08;\u5982Redis&#xff09;<\/span><br \/>\n        redisTemplate<span class=\"token punctuation\">.<\/span><span class=\"token function\">opsForHash<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">put<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;player_servers&#034;<\/span><span class=\"token punctuation\">,<\/span> playerId<span class=\"token punctuation\">,<\/span> server<span class=\"token punctuation\">.<\/span><span class=\"token function\">getId<\/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> server<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u6ce8\u91ca&#xff1a;<\/p>\n<ul>\n<li>\u73a9\u5bb6ID\u4f5c\u4e3a\u54c8\u5e0c\u952e&#xff0c;\u4fdd\u8bc1\u6bcf\u6b21\u767b\u5f55\u5206\u914d\u5230\u540c\u4e00\u670d\u52a1\u5668&#xff01;<\/li>\n<\/ul>\n<hr \/>\n<h4>\u4e94\u3001Step 5&#xff1a;\u52a8\u6001\u6269\u7f29\u5bb9\u2014\u2014\u201c\u670d\u52a1\u5668\u50cf\u2018\u5206\u8eab\u2019\u4e00\u6837\u589e\u51cf\u201d<\/h4>\n<h5>5.1 \u80cc\u666f&#xff1a;<\/h5>\n<p>\u6848\u4f8b&#xff1a; \u73a9\u5bb6\u7a81\u7136\u6d8c\u5165\u5bfc\u81f4\u6392\u961f&#xff1f;\u7528\u52a8\u6001\u6269\u7f29\u5bb9\u50cf\u201c\u53ec\u5524\u5206\u8eab\u201d\u4e00\u6837\u81ea\u52a8\u6269\u5bb9&#xff01;<\/p>\n<h5>5.2 \u4ee3\u7801\u5b9e\u6218&#xff1a;\u57fa\u4e8ePrometheus&#043;Kubernetes\u7684\u81ea\u52a8\u6269\u7f29\u5bb9<\/h5>\n<p>\u6b65\u9aa41&#xff1a;\u76d1\u63a7\u670d\u52a1\u5668\u6307\u6807<\/p>\n<p> <span class=\"token comment\">\/\/ MetricsService.java<\/span><br \/>\n<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\">MetricsService<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token annotation punctuation\">&#064;Autowired<\/span><br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token class-name\">ServerManager<\/span> serverManager<span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token annotation punctuation\">&#064;Scheduled<\/span><span class=\"token punctuation\">(<\/span>fixedRate <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">10000<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">collectMetrics<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token class-name\">List<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token class-name\">Server<\/span><span class=\"token punctuation\">&gt;<\/span><\/span> servers <span class=\"token operator\">&#061;<\/span> serverManager<span class=\"token punctuation\">.<\/span><span class=\"token function\">getAllServers<\/span><span class=\"token punctuation\">(<\/span><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 class-name\">Server<\/span> server <span class=\"token operator\">:<\/span> servers<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token comment\">\/\/ \u91c7\u96c6CPU\/\u5185\u5b58\/\u8fde\u63a5\u6570\u7b49\u6307\u6807<\/span><br \/>\n            <span class=\"token keyword\">double<\/span> cpuUsage <span class=\"token operator\">&#061;<\/span> server<span class=\"token punctuation\">.<\/span><span class=\"token function\">getCpuUsage<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            prometheusGauge<span class=\"token punctuation\">.<\/span><span class=\"token function\">labels<\/span><span class=\"token punctuation\">(<\/span>server<span class=\"token punctuation\">.<\/span><span class=\"token function\">getId<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">set<\/span><span class=\"token punctuation\">(<\/span>cpuUsage<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>\u6ce8\u91ca&#xff1a;<\/p>\n<ul>\n<li>\u7528Prometheus\u66b4\u9732\u6307\u6807&#xff0c;\u5982server_cpu_usage{server_id&#061;&#034;1&#034;}\u3002<\/li>\n<\/ul>\n<p>\u6b65\u9aa42&#xff1a;Kubernetes HPA\u914d\u7f6e<\/p>\n<p> <span class=\"token comment\"># hpa.yaml<\/span><br \/>\n<span class=\"token key atrule\">apiVersion<\/span><span class=\"token punctuation\">:<\/span> autoscaling\/v2beta2<br \/>\n<span class=\"token key atrule\">kind<\/span><span class=\"token punctuation\">:<\/span> HorizontalPodAutoscaler<br \/>\n<span class=\"token key atrule\">metadata<\/span><span class=\"token punctuation\">:<\/span><br \/>\n  <span class=\"token key atrule\">name<\/span><span class=\"token punctuation\">:<\/span> game<span class=\"token punctuation\">&#8211;<\/span>server<span class=\"token punctuation\">&#8211;<\/span>hpa<br \/>\n<span class=\"token key atrule\">spec<\/span><span class=\"token punctuation\">:<\/span><br \/>\n  <span class=\"token key atrule\">scaleTargetRef<\/span><span class=\"token punctuation\">:<\/span><br \/>\n    <span class=\"token key atrule\">apiVersion<\/span><span class=\"token punctuation\">:<\/span> apps\/v1<br \/>\n    <span class=\"token key atrule\">kind<\/span><span class=\"token punctuation\">:<\/span> Deployment<br \/>\n    <span class=\"token key atrule\">name<\/span><span class=\"token punctuation\">:<\/span> game<span class=\"token punctuation\">&#8211;<\/span>server<span class=\"token punctuation\">&#8211;<\/span>deployment<br \/>\n  <span class=\"token key atrule\">minReplicas<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token number\">2<\/span><br \/>\n  <span class=\"token key atrule\">maxReplicas<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token number\">10<\/span><br \/>\n  <span class=\"token key atrule\">metrics<\/span><span class=\"token punctuation\">:<\/span><br \/>\n    <span class=\"token punctuation\">&#8211;<\/span> <span class=\"token key atrule\">type<\/span><span class=\"token punctuation\">:<\/span> Pods<br \/>\n      <span class=\"token key atrule\">pods<\/span><span class=\"token punctuation\">:<\/span><br \/>\n        <span class=\"token key atrule\">metricName<\/span><span class=\"token punctuation\">:<\/span> server_cpu_usage<br \/>\n        <span class=\"token key atrule\">targetAverageValue<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token number\">0.7<\/span> <span class=\"token comment\"># CPU\u4f7f\u7528\u7387\u8d85\u8fc770%\u89e6\u53d1\u6269\u5bb9<\/span><\/p>\n<p>\u6ce8\u91ca&#xff1a;<\/p>\n<ul>\n<li>\u6839\u636e\u81ea\u5b9a\u4e49\u6307\u6807\u81ea\u52a8\u6269\u7f29\u670d\u52a1\u5668\u6570\u91cf&#xff01;<\/li>\n<\/ul>\n<h5>5.3 \u52a8\u6001\u6ce8\u518c\u670d\u52a1\u5668<\/h5>\n<p> <span class=\"token comment\">\/\/ ServerManager.java<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">ServerManager<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token annotation punctuation\">&#064;Autowired<\/span><br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token class-name\">ConsistentHashBalancer<\/span> balancer<span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">registerServer<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Server<\/span> server<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        balancer<span class=\"token punctuation\">.<\/span><span class=\"token function\">addServer<\/span><span class=\"token punctuation\">(<\/span>server<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        redisTemplate<span class=\"token punctuation\">.<\/span><span class=\"token function\">opsForSet<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">add<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;active_servers&#034;<\/span><span class=\"token punctuation\">,<\/span> server<span class=\"token punctuation\">.<\/span><span class=\"token function\">getId<\/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><\/p>\n<p>    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">deregisterServer<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Server<\/span> server<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        balancer<span class=\"token punctuation\">.<\/span><span class=\"token function\">removeServer<\/span><span class=\"token punctuation\">(<\/span>server<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        redisTemplate<span class=\"token punctuation\">.<\/span><span class=\"token function\">opsForSet<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">remove<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;active_servers&#034;<\/span><span class=\"token punctuation\">,<\/span> server<span class=\"token punctuation\">.<\/span><span class=\"token function\">getId<\/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>\u6ce8\u91ca&#xff1a;<\/p>\n<ul>\n<li>\u670d\u52a1\u5668\u542f\u52a8\u65f6\u6ce8\u518c&#xff0c;\u5173\u95ed\u65f6\u6ce8\u9500&#xff0c;\u4fdd\u6301\u8d1f\u8f7d\u5747\u8861\u5668\u72b6\u6001\u540c\u6b65&#xff01;<\/li>\n<\/ul>\n<hr \/>\n<h4>\u516d\u3001\u5f69\u86cb&#xff1a;\u7194\u65ad\u4e0e\u964d\u7ea7\u2014\u2014\u201c\u670d\u52a1\u5668\u625b\u4e0d\u4f4f\u65f6\u81ea\u52a8\u2018\u6295\u964d\u2019\u201d<\/h4>\n<h5>6.1 \u80cc\u666f&#xff1a;<\/h5>\n<p>\u6848\u4f8b&#xff1a; \u67d0\u4e2a\u670d\u52a1\u5668\u5d29\u6e83\u5bfc\u81f4\u5168\u670d\u5361\u987f&#xff1f;\u7528\u7194\u65ad\u5668\u50cf\u201c\u7535\u8def\u4fdd\u9669\u4e1d\u201d\u4e00\u6837\u5207\u65ad\u6545\u969c\u8282\u70b9&#xff01;<\/p>\n<h5>6.2 \u4ee3\u7801\u5b9e\u6218&#xff1a;Hystrix\u7194\u65ad\u5668<\/h5>\n<p> <span class=\"token comment\">\/\/ ServerService.java<\/span><br \/>\n<span class=\"token annotation punctuation\">&#064;Service<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">ServerService<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token annotation punctuation\">&#064;Autowired<\/span><br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token class-name\">ServerManager<\/span> serverManager<span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token annotation punctuation\">&#064;HystrixCommand<\/span><span class=\"token punctuation\">(<\/span>fallbackMethod <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;fallback&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">processRequest<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span> playerId<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token class-name\">Server<\/span> server <span class=\"token operator\">&#061;<\/span> serverManager<span class=\"token punctuation\">.<\/span><span class=\"token function\">getServer<\/span><span class=\"token punctuation\">(<\/span>playerId<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token comment\">\/\/ \u5411\u670d\u52a1\u5668\u53d1\u9001\u8bf7\u6c42<\/span><br \/>\n        server<span class=\"token punctuation\">.<\/span><span class=\"token function\">sendRequest<\/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\">private<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">fallback<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span> playerId<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token comment\">\/\/ \u964d\u7ea7\u903b\u8f91&#xff1a;\u91cd\u5b9a\u5411\u5230\u5907\u7528\u670d\u52a1\u5668<\/span><br \/>\n        <span class=\"token class-name\">Server<\/span> backup <span class=\"token operator\">&#061;<\/span> serverManager<span class=\"token punctuation\">.<\/span><span class=\"token function\">getBackupServer<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        backup<span class=\"token punctuation\">.<\/span><span class=\"token function\">sendRequest<\/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>\u6ce8\u91ca&#xff1a;<\/p>\n<ul>\n<li>\u5f53\u670d\u52a1\u5668\u8d85\u65f6\u6216\u5931\u8d25\u65f6\u89e6\u53d1fallback&#xff0c;\u907f\u514d\u96ea\u5d29\u6548\u5e94&#xff01;<\/li>\n<\/ul>\n<hr \/>\n<h4>\u4e03\u3001\u8fdb\u9636\u6280\u5de7&#xff1a;\u8de8\u670d\u6218\u4e0e\u6570\u636e\u540c\u6b65\u2014\u2014\u201c\u8ba9\u4e0d\u540c\u526f\u672c\u7684\u73a9\u5bb6\u6253\u4e00\u573a\u201d<\/h4>\n<h5>7.1 \u80cc\u666f&#xff1a;<\/h5>\n<p>\u6848\u4f8b&#xff1a; \u670d\u52a1\u5668A\u548cB\u7684\u73a9\u5bb6\u8981\u4e00\u8d77\u6253\u8de8\u670d\u6218&#xff1f;\u7528\u6570\u636e\u540c\u6b65\u50cf\u201c\u5168\u670d\u5e7f\u64ad\u201d\u4e00\u6837\u5b9e\u65f6\u540c\u6b65&#xff01;<\/p>\n<h5>7.2 \u4ee3\u7801\u5b9e\u6218&#xff1a;Redis Pub\/Sub\u540c\u6b65<\/h5>\n<p> <span class=\"token comment\">\/\/ CrossServerService.java<\/span><br \/>\n<span class=\"token annotation punctuation\">&#064;Service<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">CrossServerService<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token annotation punctuation\">&#064;Autowired<\/span><br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token class-name\">RedisTemplate<\/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> redisTemplate<span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">broadcastEvent<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span> event<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        redisTemplate<span class=\"token punctuation\">.<\/span><span class=\"token function\">convertAndSend<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;cross_server_channel&#034;<\/span><span class=\"token punctuation\">,<\/span> event<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\">MessageListenerAdapter<\/span> <span class=\"token function\">messageAdapter<\/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\">MessageListenerAdapter<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">new<\/span> <span class=\"token class-name\">MessageReceiver<\/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><\/p>\n<p>    <span class=\"token keyword\">private<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">MessageReceiver<\/span> <span class=\"token keyword\">implements<\/span> <span class=\"token class-name\">MessageListener<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token annotation punctuation\">&#064;Override<\/span><br \/>\n        <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">onMessage<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Message<\/span> message<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">byte<\/span><span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span> pattern<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token class-name\">String<\/span> event <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">String<\/span><span class=\"token punctuation\">(<\/span>message<span class=\"token punctuation\">.<\/span><span class=\"token function\">getBody<\/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 comment\">\/\/ \u5904\u7406\u8de8\u670d\u4e8b\u4ef6<\/span><br \/>\n            <span class=\"token function\">handleEvent<\/span><span class=\"token punctuation\">(<\/span>event<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>\u6ce8\u91ca&#xff1a;<\/p>\n<ul>\n<li>\u901a\u8fc7Redis\u9891\u9053\u5b9e\u73b0\u8de8\u670d\u52a1\u5668\u4e8b\u4ef6\u5e7f\u64ad&#xff01;<\/li>\n<\/ul>\n<hr \/>\n<h3>\u7ed3\u8bba&#xff1a;\u6e38\u620f\u540e\u7aef\u8d1f\u8f7d\u5747\u8861\u7684\u201c\u4e94\u7ef4\u751f\u5b58\u6cd5\u5219\u201d<\/h3>\n<p>\u603b\u7ed3&#xff1a;<\/p>\n<li>\u6838\u5fc3\u6b65\u9aa4&#xff1a;<\/li>\n<ul>\n<li>\u6784\u5efa\u96c6\u7fa4&#xff08;Step1&#xff09;\u2192\u8f6e\u8be2\u5206\u914d&#xff08;Step2&#xff09;\u2192\u52a0\u6743\u4f18\u5316&#xff08;Step3&#xff09;\u2192\u4e00\u81f4\u6027\u54c8\u5e0c\u56fa\u5b9a&#xff08;Step4&#xff09;\u2192\u52a8\u6001\u6269\u7f29&#xff08;Step5&#xff09;\u3002<\/li>\n<\/ul>\n<li>\u5173\u952e\u6280\u5de7&#xff1a;<\/li>\n<ul>\n<li>\u7ed3\u5408Netty\u5904\u7406\u9ad8\u5e76\u53d1&#xff0c;\u7528Redis\u5b58\u50a8\u72b6\u6001\u3002<\/li>\n<li>\u7194\u65ad\u5668\u9632\u6b62\u96ea\u5d29&#xff0c;\u4e00\u81f4\u6027\u54c8\u5e0c\u4fdd\u8bc1\u73a9\u5bb6\u7c98\u6027\u3002<\/li>\n<\/ul>\n<li>\u7ec8\u6781\u76ee\u6807&#xff1a;<\/li>\n<ul>\n<li>\u652f\u6301\u767e\u4e07\u73a9\u5bb6\u540c\u65f6\u5728\u7ebf&#xff0c;\u81ea\u52a8\u6269\u7f29\u5bb9&#xff0c;\u96f6\u5b95\u673a&#xff01;<\/li>\n<\/ul>\n<p>\u6700\u540e\u7684\u8bdd&#xff1a; \u73b0\u5728&#xff0c;\u4f60\u7684\u6e38\u620f\u670d\u52a1\u5668\u7ec8\u4e8e\u80fd\u50cf\u201c\u5206\u8eab\u5927\u6cd5\u201d\u4e00\u6837\u625b\u4f4f\u538b\u529b&#xff01;\u4e0b\u6b21\u9047\u5230\u201c\u670d\u52a1\u5668\u7206\u6ee1\u201d\u6295\u8bc9&#xff0c;\u4f60\u53ef\u4ee5\u81ea\u4fe1\u5730\u8bf4&#xff1a;\u201c\u6211\u7528Java&#043;Consistent Hashing&#xff0c;\u73a9\u5bb6\u6c38\u8fdc\u6709\u670d\u52a1\u5668\u8fdb&#xff01;\u201d<\/p>\n<p>\u5f69\u86cb&#xff1a; \u5982\u679c\u89c9\u5f97\u8fd8\u4e0d\u591f\u201c\u6781\u81f4\u201d&#xff0c;\u8bd5\u8bd5\u7528\u6e38\u620f\u670d\u52a1\u5668\u70ed\u8fc1\u79fb&#xff1a;<\/p>\n<p> <span class=\"token comment\">\/\/ \u70ed\u8fc1\u79fb\u903b\u8f91&#xff08;\u7b80\u5316\u7248&#xff09;<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">migratePlayer<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span> playerId<span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">Server<\/span> newServer<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token class-name\">Server<\/span> oldServer <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">getServer<\/span><span class=\"token punctuation\">(<\/span>playerId<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token comment\">\/\/ 1. \u901a\u77e5\u65e7\u670d\u52a1\u5668\u4fdd\u5b58\u73a9\u5bb6\u72b6\u6001<\/span><br \/>\n    oldServer<span class=\"token punctuation\">.<\/span><span class=\"token function\">savePlayerState<\/span><span class=\"token punctuation\">(<\/span>playerId<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token comment\">\/\/ 2. \u5728\u65b0\u670d\u52a1\u5668\u52a0\u8f7d\u73a9\u5bb6\u6570\u636e<\/span><br \/>\n    newServer<span class=\"token punctuation\">.<\/span><span class=\"token function\">loadPlayerState<\/span><span class=\"token punctuation\">(<\/span>playerId<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token comment\">\/\/ 3. \u66f4\u65b0Redis\u7ed1\u5b9a\u5173\u7cfb<\/span><br \/>\n    redisTemplate<span class=\"token punctuation\">.<\/span><span class=\"token function\">opsForHash<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">put<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;player_servers&#034;<\/span><span class=\"token punctuation\">,<\/span> playerId<span class=\"token punctuation\">,<\/span> newServer<span class=\"token punctuation\">.<\/span><span class=\"token function\">getId<\/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><\/p>\n<p>\u8ba9\u73a9\u5bb6\u5728\u201c\u65e0\u7f1d\u201d\u4e2d\u5207\u6362\u670d\u52a1\u5668&#xff01;<\/p>\n<hr \/>\n<h3>\u9644\u5f55&#xff1a;\u5e38\u89c1\u95ee\u9898\u4e0e\u89e3\u51b3\u65b9\u6848<\/h3>\n<h5>7.1 \u95ee\u9898&#xff1a;\u73a9\u5bb6\u767b\u5f55\u65f6\u670d\u52a1\u5668\u5168\u6302\u4e86&#xff1f;<\/h5>\n<p>\u89e3\u51b3\u65b9\u6848&#xff1a;<\/p>\n<p> <span class=\"token comment\">\/\/ \u6dfb\u52a0\u5065\u5eb7\u68c0\u67e5<\/span><br \/>\n<span class=\"token annotation punctuation\">&#064;Scheduled<\/span><span class=\"token punctuation\">(<\/span>fixedRate <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">30000<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">checkServerHealth<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token class-name\">List<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token class-name\">Server<\/span><span class=\"token punctuation\">&gt;<\/span><\/span> servers <span class=\"token operator\">&#061;<\/span> serverManager<span class=\"token punctuation\">.<\/span><span class=\"token function\">getAllServers<\/span><span class=\"token punctuation\">(<\/span><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 class-name\">Server<\/span> server <span class=\"token operator\">:<\/span> servers<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 operator\">!<\/span>server<span class=\"token punctuation\">.<\/span><span class=\"token function\">isHealthy<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            serverManager<span class=\"token punctuation\">.<\/span><span class=\"token function\">deregisterServer<\/span><span class=\"token punctuation\">(<\/span>server<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>\u6ce8\u91ca&#xff1a;<\/p>\n<ul>\n<li>\u5b9a\u671f\u68c0\u67e5\u670d\u52a1\u5668\u5b58\u6d3b\u72b6\u6001&#xff0c;\u5254\u9664\u6545\u969c\u8282\u70b9&#xff01;<\/li>\n<\/ul>\n<h5>7.2 \u95ee\u9898&#xff1a;\u4e00\u81f4\u6027\u54c8\u5e0c\u8282\u70b9\u53d8\u52a8\u65f6\u6570\u636e\u4e22\u5931&#xff1f;<\/h5>\n<p>\u89e3\u51b3\u65b9\u6848&#xff1a;<\/p>\n<p> <span class=\"token comment\">\/\/ \u4f7f\u7528\u865a\u62df\u8282\u70b9&#043;\u9884\u70ed<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">addServerWithWarmup<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Server<\/span> newServer<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    balancer<span class=\"token punctuation\">.<\/span><span class=\"token function\">addServer<\/span><span class=\"token punctuation\">(<\/span>newServer<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u9884\u70ed\u9636\u6bb5&#xff1a;\u5c06\u90e8\u5206\u73a9\u5bb6\u8fc1\u79fb\u8fc7\u6765<\/span><br \/>\n    <span class=\"token function\">transferPlayers<\/span><span class=\"token punctuation\">(<\/span>newServer<span class=\"token punctuation\">,<\/span> <span class=\"token number\">100<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u6ce8\u91ca&#xff1a;<\/p>\n<ul>\n<li>\u901a\u8fc7\u9884\u70ed\u51cf\u5c11\u8282\u70b9\u53d8\u52a8\u65f6\u7684\u54c8\u5e0c\u73af\u6296\u52a8&#xff01;<\/li>\n<\/ul>\n<h5>7.3 \u95ee\u9898&#xff1a;\u8de8\u670d\u6218\u5ef6\u8fdf\u8fc7\u9ad8&#xff1f;<\/h5>\n<p>\u89e3\u51b3\u65b9\u6848&#xff1a;<\/p>\n<p> <span class=\"token comment\">\/\/ \u4f7f\u7528\u5c31\u8fd1\u670d\u52a1\u5668\u7b56\u7565<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token class-name\">Server<\/span> <span class=\"token function\">selectNearestServer<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span> playerId<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u6839\u636e\u73a9\u5bb6IP\u9009\u62e9\u6700\u8fd1\u7684\u670d\u52a1\u5668<\/span><br \/>\n    <span class=\"token keyword\">return<\/span> serverManager<span class=\"token punctuation\">.<\/span><span class=\"token function\">getNearestServerByIP<\/span><span class=\"token punctuation\">(<\/span>playerIp<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u6ce8\u91ca&#xff1a;<\/p>\n<ul>\n<li>\u7ed3\u5408\u5730\u7406\u4f4d\u7f6e\u4f18\u5316\u6570\u636e\u540c\u6b65\u5ef6\u8fdf&#xff01;<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>\u6587\u7ae0\u6d4f\u89c8\u9605\u8bfb866\u6b21\uff0c\u70b9\u8d5e14\u6b21\uff0c\u6536\u85cf7\u6b21\u3002<\/p>\n","protected":false},"author":2,"featured_media":33434,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[99,2768,43,248],"topic":[],"class_list":{"0":"post-33436","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","6":"hentry","7":"category-server","8":"tag-java","10":"tag-43","11":"tag-248"},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ 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