{"id":10008131,"date":"2023-08-22T12:59:46","date_gmt":"2023-08-22T04:59:46","guid":{"rendered":"https:\/\/blog.itmax.cn\/?p=10008131"},"modified":"2023-08-22T12:59:46","modified_gmt":"2023-08-22T04:59:46","slug":"%e9%9d%a2%e8%af%95%e5%ae%98%ef%bc%9afeign-%e7%ac%ac%e4%b8%80%e6%ac%a1%e8%b0%83%e7%94%a8%e4%b8%ba%e4%bb%80%e4%b9%88%e4%bc%9a%e5%be%88%e6%85%a2%ef%bc%9f%e5%a4%a7%e9%83%a8%e5%88%86%e4%ba%ba%e9%83%bd","status":"publish","type":"post","link":"https:\/\/itmax.cn\/?p=10008131","title":{"rendered":"\u9762\u8bd5\u5b98\uff1aFeign \u7b2c\u4e00\u6b21\u8c03\u7528\u4e3a\u4ec0\u4e48\u4f1a\u5f88\u6162\uff1f\u5927\u90e8\u5206\u4eba\u90fd\u7b54\u4e0d\u4e0a\u6765\uff01"},"content":{"rendered":"<p>\u4f5c\u8005\uff1aLxlxxx \/<br \/>\u94fe\u63a5\uff1a<a target=\"_blank\" href=\"https:\/\/link.segmentfault.com\/?enc=vCcydElFD8pME%2F6sZA8l0w%3D%3D.rz8AvQ8LnXvakq6sd5sG3NbjklzCFXeVFLOtmCyLSiJ0jNILtWOHgf3FwSjSHfAP\" rel=\"noopener noreferrer\">https:\/\/juejin.cn\/post\/7249624466150408250<\/a><\/p>\n<h2>\u524d\u8a00<\/h2>\n<p>\u9996\u5148\u8981\u4e86\u89e3Feign\u662f\u5982\u4f55\u8fdb\u884c\u8fdc\u7a0b\u8c03\u7528\u7684\uff0c\u8fd9\u91cc\u9762\u5305\u62ec\uff0c\u6ce8\u518c\u4e2d\u5fc3\u3001\u8d1f\u8f7d\u5747\u8861\u3001FeignClient\u4e4b\u95f4\u7684\u5173\u7cfb\uff0c\u5fae\u670d\u52a1\u901a\u8fc7\u4e0d\u8bba\u662feureka\u3001nacos\u4e5f\u597d\u6ce8\u518c\u5230\u670d\u52a1\u7aef\uff0cFeign\u662f\u9760Ribbon\u505a\u8d1f\u8f7d\u7684\uff0c\u800cRibbon\u9700\u8981\u62ff\u5230\u6ce8\u518c\u4e2d\u5fc3\u7684\u670d\u52a1\u5217\u8868\uff0c\u5c06\u670d\u52a1\u8fdb\u884c\u8d1f\u8f7d\u7f13\u5b58\u5230\u672c\u5730\uff0c\u7136\u540eFeignClient\u5ba2\u6237\u7aef\u5728\u8fdb\u884c\u8c03\u7528\uff0c\u5927\u6982\u5c31\u662f\u8fd9\u4e48\u4e00\u4e2a\u8fc7\u7a0b\u3002<\/p>\n<h2>Ribbon\u662f\u5982\u4f55\u8fdb\u884c\u8d1f\u8f7d\u7684<\/h2>\n<p>\u9996\u5148\u6211\u4eec\u8981\u6e05\u695aRibbon\u662f\u5982\u4f55\u8fdb\u884c\u8d1f\u8f7d\u7684\uff0c\u4e5f\u5c31\u662f\u5982\u4f55\u83b7\u53d6nacos\u3001eureka\u7684\u670d\u52a1\u5217\u8868\uff0c\u8fd9\u4e2a\u5f88\u5173\u952e\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" width=\"444\" height=\"372\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/bVc9l2a\" alt=\"\" title=\"\"><\/p>\n<h3>RibbonClientConfiguration<\/h3>\n<p>RibbonClientConfiguration\u7c7b\u4e2d\u901a\u8fc7LoadBalancer\uff0c\u6211\u4eec\u77e5\u9053ribbon\u662f\u9760LoadBalancer\u505a\u8d1f\u8f7d\u7684 \u65e0\u975e\u5c31\u662fILoadBalancer\u63a5\u53e3\u7684\u65b9\u6cd5\uff0c\u4f9d\u6b21\u662f\u6dfb\u52a0\u65b0\u7684\u670d\u52a1\u3001\u5728\u8d1f\u8f7d\u5747\u8861\u91cc\u9009\u62e9\u4e00\u4e2a\u670d\u52a1\u3001markServerDown\u670d\u52a1\u4e0b\u7ebf\u3001\u83b7\u53d6\u670d\u52a1\u5217\u8868\u3001\u83b7\u53d6\u5b58\u6d3b\u7684\u670d\u52a1\u5668\u3001\u83b7\u53d6\u6240\u6709\u670d\u52a1\u5668\uff08\u5305\u62ec\u5065\u5eb7\u548c\u4e0d\u5065\u5eb7\u7684\uff09<\/p>\n<p><img decoding=\"async\" width=\"723\" height=\"645\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/bVc9l2b\" alt=\"\" title=\"\" loading=\"lazy\"><\/p>\n<h3>ZoneAwareLoadBalancer<\/h3>\n<p>loadBalancer\u9ed8\u8ba4\u7684\u662fZoneAwareLoadBalancer\u8d1f\u8f7d\u5747\u8861\u5668\uff0c\u901a\u8fc7\u7ee7\u627f\u7236\u7c7bDynamicServerListLoadBalancer\u7684restOfInit\u65b9\u6cd5\uff0c\u91cc\u9762\u6bd4\u8f83\u91cd\u8981\u7684\u4e24\u4e2a\u65b9\u6cd5\uff0cenableAndInitLearnNewServersFeature\u548cupdateListOfServers\u65b9\u6cd5<\/p>\n<p><img decoding=\"async\" width=\"723\" height=\"300\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/bVc9l2c\" alt=\"\" title=\"\" loading=\"lazy\"><\/p>\n<p>enableAndInitLearnNewServersFeature\u65b9\u6cd5\u91cc\u9762<\/p>\n<pre><code class=\"less\">LOGGER.info(&quot;Using serverListUpdater {}&quot;, serverListUpdater.getClass().getSimpleName());\nserverListUpdater.start(updateAction);<\/code><\/pre>\n<p>\u8ba9\u6211\u4eec\u770bServerListUpdater.start\u65b9\u6cd5\u7684\u5b9e\u73b0\uff0c\u901a\u8fc7\u81ea\u5b9a\u4e49\u7ebf\u7a0b\u53bb\u62ff\uff0c\u8fd9\u5c31\u662f\u83b7\u53d6\u670d\u52a1\u5217\u8868\uff1b<\/p>\n<p><img decoding=\"async\" width=\"723\" height=\"554\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/bVc9l2d\" alt=\"\" title=\"\" loading=\"lazy\"><\/p>\n<h2>Ribbon\u8d1f\u8f7d\u5747\u8861\u7b56\u7565<\/h2>\n<p>\u670d\u52a1\u5217\u8868\u83b7\u53d6\u8bf4\u4e86\uff0c\u5f53\u7136\u8d1f\u8f7d\u5747\u8861\u7684\u7b56\u7565\u8fd9\u5757\u4e5f\u6709\u5fc5\u8981\u8bb2\u4e00\u4e0b\uff0c\u4e3b\u8981\u6709\u4e03\u79cd\uff1b<\/p>\n<ul>\n<li>RoundRobinRule\uff08\u8f6e\u8be2\u7b56\u7565\uff0c\u6309\u7167\u670d\u52a1\u987a\u5e8f\u4f9d\u6b21\u5faa\u73af\u8c03\u7528\uff09<\/li>\n<li>WeightedResponseTimeRule\uff08\u6743\u91cd\u6bd4\u7b56\u7565\uff0c\u4f18\u5148\u9009\u62e9\u6743\u91cd\u6bd4\u9ad8\u7684\u670d\u52a1\uff0c\u4e5f\u5c31\u662f\u670d\u52a1\u54cd\u5e94\u65f6\u95f4\u6bd4\u8f83\u77ed\u7684\uff0c\u54cd\u5e94\u65f6\u95f4\u8d8a\u957f\u6743\u91cd\u6bd4\u8d8a\u4f4e\uff09<\/li>\n<li>RandomRule\uff08\u968f\u673a\u7b56\u7565\uff0c\u670d\u52a1\u63d0\u4f9b\u8005\u5217\u8868\u968f\u673a\u9009\u62e9\u4e00\u4e2a\u670d\u52a1\uff09<\/li>\n<li>BestAvailableRule\uff08\u6700\u5c0f\u8fde\u63a5\u6570\u7b56\u7565\uff0c\u83b7\u53d6\u670d\u52a1\u5217\u8868\u4e2d\u8fde\u63a5\u6570\u6700\u5c0f\u7684\u670d\u52a1\u5b9e\u4f8b\uff09<\/li>\n<li>RetryRule\uff08\u91cd\u8bd5\u7b56\u7565\uff0c\u91cd\u8bd5\u83b7\u53d6\u5df2\u7ecf\u5931\u6548\u7684\u670d\u52a1\uff0c\u6307\u5b9a\u65f6\u95f4\u6ca1\u6709\u83b7\u53d6\u5230\u8fd4\u56deNULL\uff09<\/li>\n<li>AvailabilityFilteringRule\uff08\u53ef\u7528\u6027\u654f\u611f\u7b56\u7565\uff0c\u8fc7\u6ee4\u975e\u5065\u5eb7\u670d\u52a1\u5b9e\u4f8b\uff0c\u9009\u62e9lianji\uff09<\/li>\n<li>ZoneAvoidanceRule\uff08\u533a\u57df\u654f\u611f\u7b56\u7565\uff09<\/li>\n<\/ul>\n<h2>Ribbon-eager-load\uff08\u9965\u997f\u52a0\u8f7d\uff09\u6a21\u5f0f<\/h2>\n<p>Ribbon\u5bf9\u4e8e\u8d1f\u8f7dClient\u662f\u5728\u670d\u52a1\u542f\u52a8\u540e\uff0c\u53d1\u751f\u8c03\u7528\u7684\u65f6\u5019\u624d\u4f1a\u53bb\u521b\u5efaClient\uff0c\u6240\u4ee5\u5728\u7b2c\u4e00\u6b21\u53d1\u751fhttp\u8bf7\u6c42\u8c03\u7528\u7684\u65f6\u5019\uff0c\u4e0d\u5149\u8981\u7b97\u4e0ahttp\u7684\u8bf7\u6c42\u65f6\u95f4\uff0c\u8fd8\u8981\u7b97\u4e0aClient\u7684\u521b\u5efa\u65f6\u95f4\uff0c\u6240\u4ee5\u7b2c\u4e00\u6b21\u8c03\u7528\u7684\u65f6\u5019\u624d\u4f1a\u5f88\u6162\uff0c\u5199\u4e2a\u65b9\u6cd5\u8c03\u7528\u4e0b;<\/p>\n<p>System \u670d\u52a1\u8c03\u7528System2\u670d\u52a1<\/p>\n<pre><code>public String requestSystem2Api(){\n    long startTime = System.currentTimeMillis();\n    R&lt;String&gt; stringR = iTestServiceClient.testRequestMethod();\n    if (null !=stringR){\n        log.info(&quot;\u63a5\u53e3\u8fd4\u56de\uff1a&quot;+stringR.getMsg());\n    }\n    long needTime = System.currentTimeMillis() - startTime;\n    log.info(&quot;\u63a5\u53e3\u8c03\u7528\u9700\u8981\u7684\u65f6\u95f4\uff1a&quot;+needTime);\n    return &quot;&quot;;\n}<\/code><\/pre>\n<p>\u4ece\u8c03\u7528\u65e5\u5fd7\u53ef\u4ee5\u770b\u51fa\uff0c\u7b2c\u4e00\u6b21\u8c03\u7528System2\u670d\u52a1\uff0cRibbon\u7684DynamicServerListLoadBalancer\u4f1a\u5c06feign\u5ba2\u6237\u7aef\u8fdb\u884c\u8d1f\u8f7d\uff0c\u7136\u540e\u8fdb\u884c\u8c03\u7528\uff0c\u7b2c\u4e00\u6b21\u8c03\u7528\u7684\u65f6\u95f4\u5c31\u662f\u4f1a\u957f\u4e00\u4e9b\uff0c\u7b2c\u4e8c\u6b21\u8c03\u7528\u76f4\u63a5\u8fdb\u884c\u8bf7\u6c42\u53ef\u4ee5\u770b\u5230\u8c03\u7528\u65f6\u95f4\u5f88\u5feb\u3002<\/p>\n<p><img decoding=\"async\" width=\"723\" height=\"110\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/bVc9l2e\" alt=\"\" title=\"\" loading=\"lazy\"><\/p>\n<h3>\u5f00\u542fRibbon\u9965\u997f\u52a0\u8f7d<\/h3>\n<pre><code class=\"yaml\">ribbon:\n    nacos:\n      enabled: true # \u5f00\u542fnaocos\u8f6e\u8be2\n    eager-load:\n     enabled: true  # \u5f00\u542fRibbon\u7684\u9965\u997f\u52a0\u8f7d\u6a21\u5f0f(\u9632\u6b62\u7b2c\u4e00\u6b21\u8bf7\u6c42\u8d85\u65f6\u7684\u95ee\u9898)\n     clients: Lxlxxx-system2 # \u6307\u5b9a\u9700\u8981\u5f00\u542f\u7684\u670d\u52a1(\u9700\u8981\u5f00\u542fRibbon\u7684\u9965\u997f\u52a0\u8f7d\u6a21\u5f0f)\n     ReadTimeout: 10000\n     ConnectTimeout: 10000\n     MaxAutoRetries: 0\n     MaxAutoRetriesNextServer: 1\n     OkToRetryOnAllOperations: false<\/code><\/pre>\n<p>\u5728\u9879\u76ee\u542f\u52a8\u7684\u65f6\u5019\uff0c\u53ef\u4ee5\u4ece\u65e5\u5fd7\u770b\u5230\uff0c\u5df2\u7ecf\u628aLxlxxx-system2\u670d\u52a1\u8fdb\u884c\u52a0\u8f7d\uff0c\u4ece\u800c\u907f\u514d\u4e86\u7b2c\u4e00\u6b21\u8bf7\u6c42\u8d85\u65f6\u7684\u60c5\u51b5\uff1b<\/p>\n<p><img decoding=\"async\" width=\"723\" height=\"85\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/bVc9l2f\" alt=\"\" title=\"\" loading=\"lazy\"><\/p>\n<h2>\u603b\u7ed3<\/h2>\n<p>\u5176\u5b9e\u8fd9\u79cd\u9965\u997f\u52a0\u8f7d\u6a21\u5f0f\uff0c\u7c7b\u4f3c\u4e8e\u201c\u5ba2\u6237\u7aef\u8d1f\u8f7d\u9884\u70ed\u201d\u7684\u4e00\u4e2a\u64cd\u4f5c\uff0c\u9879\u76ee\u542f\u52a8\u7684\u65f6\u5019\u8fdb\u884c\u52a0\u8f7d\uff0c\u9632\u6b62\u670d\u52a1\u4e4b\u95f4\u8c03\u7528\u53ef\u4ee5\u56e0\u4e3a\u6570\u636e\u91cf\u3001\u4e1a\u52a1\u903b\u8f91\u5904\u7406\u590d\u6742\u6027\u5bfc\u81f4\u63a5\u53e3\u8d85\u65f6\uff0c\u5982\u679c\u4f60\u7684\u670d\u52a1\u4e4b\u95f4\u8c03\u7528\u4e1a\u52a1\u5904\u7406\u6bd4\u8f83\u590d\u6742\u3001\u4e14\u6162\uff0c\u4e0d\u59a8\u53ef\u4ee5\u8bd5\u8bd5\u8fd9\u79cd\u89e3\u51b3\u65b9\u5f0f\u3002<\/p>\n<p><strong>\u8fd1\u671f\u70ed\u6587\u63a8\u8350\uff1a<\/strong><\/p>\n<p>1.<a target=\"_blank\" href=\"https:\/\/link.segmentfault.com\/?enc=tkH6NUpe7rk4S%2FXOO8mfVA%3D%3D.dxFZs%2BxSvkRmuAV7N3J8ykU4F2waeW5JinAR%2F6Sp2z4%3D\" rel=\"noopener noreferrer\">1,000+ \u9053 Java\u9762\u8bd5\u9898\u53ca\u7b54\u6848\u6574\u7406(2022\u6700\u65b0\u7248)<\/a><\/p>\n<p>2.<a target=\"_blank\" href=\"https:\/\/link.segmentfault.com\/?enc=fWS5J9ZxPEdJBFlGHI9jLg%3D%3D.67SesLkVVfv%2FRk9CMVJwDFmKJAegGA1jXrL6OrRI57yMSoxB7s0bWoW9MS8FpKCOqzcj6eGV4HEGUP%2FxU20iYw%3D%3D\" rel=\"noopener noreferrer\">\u52b2\u7206\uff01Java \u534f\u7a0b\u8981\u6765\u4e86\u3002\u3002\u3002<\/a><\/p>\n<p>3.<a target=\"_blank\" href=\"https:\/\/link.segmentfault.com\/?enc=WZVtqkeIdkSvGKZ7U5XqEQ%3D%3D.uRB5KQz6Vxl2One2XNaD8ARK7xRV6LFhuay5VLlmrRzbynWdhTQNeN1FeBVGwpw9\" rel=\"noopener noreferrer\">Spring Boot 2.x \u6559\u7a0b\uff0c\u592a\u5168\u4e86\uff01<\/a><\/p>\n<p>4.<a target=\"_blank\" href=\"https:\/\/link.segmentfault.com\/?enc=DFw4iGukfgGXfODq1hSyeA%3D%3D.P%2F4Tb%2FQG8rEOu%2BQN%2FOgcGVgfF4tUFcnKAjcRbuvJDf7Iaer38EXvWMlQMM5MsgEKPrBWWg2iIuxp8F%2BQx6Zndg%3D%3D\" rel=\"noopener noreferrer\">\u522b\u518d\u5199\u6ee1\u5c4f\u7684\u7206\u7206\u7206\u70b8\u7c7b\u4e86\uff0c\u8bd5\u8bd5\u88c5\u9970\u5668\u6a21\u5f0f\uff0c\u8fd9\u624d\u662f\u4f18\u96c5\u7684\u65b9\u5f0f\uff01\uff01<\/a><\/p>\n<p>5.<a target=\"_blank\" href=\"https:\/\/link.segmentfault.com\/?enc=See%2BV8wLUaV4EeKJQ%2F6K1Q%3D%3D.rzwND6AxJQZPqDJcvgUEtvlD0WQcNO6P3%2FDGc9cU5n4wNdMEx%2Fyk7a%2F6GmEvRLEBbUDlb9PTvRRz2DIR1M5j5A1ikXLuaATq5%2BNSuGQvKF0%3D\" rel=\"noopener noreferrer\">\u300aJava\u5f00\u53d1\u624b\u518c\uff08\u5d69\u5c71\u7248\uff09\u300b\u6700\u65b0\u53d1\u5e03\uff0c\u901f\u901f\u4e0b\u8f7d\uff01<\/a><\/p>\n<p>\u89c9\u5f97\u4e0d\u9519\uff0c\u522b\u5fd8\u4e86\u968f\u624b\u70b9\u8d5e+\u8f6c\u53d1\u54e6\uff01<\/p>\n<p><a href=\"https:\/\/segmentfault.com\/a\/1190000044136450\">https:\/\/segmentfault.com\/a\/1190000044136450<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4f5c\u8005\uff1aLxlxxx \/\u94fe\u63a5\uff1ahttps:\/\/juejin.cn\/post\/724962446615040825 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[4],"tags":[],"class_list":["post-10008131","post","type-post","status-publish","format-standard","hentry","category-share"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/posts\/10008131","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=10008131"}],"version-history":[{"count":0,"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/posts\/10008131\/revisions"}],"wp:attachment":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=10008131"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=10008131"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=10008131"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}