{"id":2044,"date":"2023-04-01T20:51:09","date_gmt":"2023-04-01T12:51:09","guid":{"rendered":"https:\/\/www.appblog.cn\/?p=2044"},"modified":"2023-04-07T06:11:17","modified_gmt":"2023-04-06T22:11:17","slug":"eureka-client-listening-startup-status","status":"publish","type":"post","link":"https:\/\/www.appblog.cn\/index.php\/2023\/04\/01\/eureka-client-listening-startup-status\/","title":{"rendered":"Eureka Client\u76d1\u542c\u542f\u52a8\u72b6\u6001"},"content":{"rendered":"<p>\u5728Eureka Client \u7aef\uff0c\u901a\u8fc7<code>@PostConstruct<\/code>\u6ce8\u89e3\u53bb\u505a\u4e00\u4e9b\u521d\u59cb\u5316\u5de5\u4f5c\uff0c\u6709\u65f6\u4f1a\u6d89\u53ca\u5230\u8c03\u7528\u5176\u4ed6\u5fae\u670d\u52a1\uff0c\u5982\u8c03\u7528\u7f13\u5b58\u670d\u52a1\u4ee5\u8bbe\u7f6e\u521d\u59cb\u5316\u914d\u7f6e\u4fe1\u606f\u7f13\u5b58\uff0c\u8fd9\u4e2a\u65f6\u5019\uff0c\u7531\u4e8eEureka Client\u5c1a\u672a\u542f\u52a8\u5b8c\u6210\uff0c\u6ce8\u518c\u4fe1\u606f\u8fd8\u6ca1\u6709\u4eceEureka Server\u4e0a\u62c9\u53d6\u4e0b\u6765\uff0c\u56e0\u6b64ribbon\u662f\u83b7\u53d6\u4e0d\u5230client\u4fe1\u606f\u7684\uff0c\u5728\u4f7f\u7528Fegin\u8c03\u7528\u7684\u8fc7\u7a0b\u4e2d\uff0c\u5982\u679c\u5f00\u542f\u4e86\u7194\u65ad\u5668\uff0c\u90a3\u4e48\u670d\u52a1\u8c03\u7528\u4f1a\u5feb\u901f\u5931\u8d25<\/p>\n<p><!-- more --><\/p>\n<pre><code class=\"language-yml\">feign:\n  hystrix:\n    enabled: true<\/code><\/pre>\n<p>\u5982\u679c\u9700\u8981\u4f7f\u7528\u7194\u65ad\uff0c\u53bb\u9664\u5982\u4e0a\u914d\u7f6e\uff0c\u90a3\u4e48\u8c03\u7528\u670d\u52a1\u9700\u8981\u7b49\u5230\u83b7\u53d6\u5230\u4e86Eureka Client\u4fe1\u606f\u4e4b\u540e\u624d\u5f00\u59cb\u8c03\u7528\u3002<\/p>\n<p>\u4e3a\u4fdd\u8bc1\u5728\u4f7f\u7528\u4e86Hystrix\u7684\u524d\u63d0\u4e0b\uff0c\u80fd\u591f\u5728\u7cfb\u7edf\u542f\u52a8\u6210\u529f\u4e4b\u540e\uff0c\u53ef\u4ee5\u8c03\u7528\u5176\u4ed6\u5fae\u670d\u52a1\u505a\u4e00\u4e9b\u521d\u59cb\u5316\u5de5\u4f5c\uff0c\u53ef\u4ee5\u4f7f\u7528\u5982\u4e0b\u65b9\u6cd5\uff1a<\/p>\n<pre><code class=\"language-java\">import com.netflix.appinfo.ApplicationInfoManager;\nimport com.netflix.appinfo.InstanceInfo;\nimport com.netflix.discovery.EurekaClient;\nimport com.netflix.discovery.StatusChangeEvent;\nimport lombok.extern.slf4j.Slf4j;\nimport org.springframework.stereotype.Component;\n\nimport javax.annotation.PostConstruct;\nimport javax.annotation.Resource;\n\n@Slf4j\n@Component\npublic class EurekaClientConfig {\n    ApplicationInfoManager.StatusChangeListener eurekaListener = null;\n\n    @Resource\n    private AppBlogConfig appblogConfig;\n\n    @Resource\n    private EurekaClient eurekaClient;\n\n    @PostConstruct\n    public void init() {\n        eurekaListener = new ApplicationInfoManager.StatusChangeListener() {\n            @Override\n            public String getId() {\n                return &quot;channel-front&quot;;\n            }\n            @Override\n            public void notify(StatusChangeEvent statusChangeEvent) {\n                \/\/ \u5f53\u524d\u72b6\u6001\u4e3aUP\uff0c\u4e4b\u524d\u7684\u72b6\u6001\u4e3aSTARTING\n                if (InstanceInfo.InstanceStatus.UP == statusChangeEvent.getStatus() &amp;&amp; InstanceInfo.InstanceStatus.STARTING == statusChangeEvent.getPreviousStatus()) {\n                    \/\/ \u6267\u884c\u4e00\u904d\u4e4b\u540e\uff0c\u5728\u5378\u8f7d\u8be5\u76d1\u542c\uff0c\u8fbe\u5230\u5728EurekaClient\u542f\u52a8\u5b8c\u6210\u4e4b\u540e\uff0c\u4ec5\u6267\u884c\u4e00\u6b21\n                    \/\/ ID\u53ef\u4ee5\u81ea\u5b9a\u4e49\n                    appblogConfig.init();\n                    ApplicationInfoManager.getInstance().unregisterStatusChangeListener(eurekaListener.getId());\n                    eurekaListener = null;\n                }\n            }\n        };\n        eurekaClient.getApplicationInfoManager().registerStatusChangeListener(eurekaListener);\n    }\n}<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>\u5728Eureka Client \u7aef\uff0c\u901a\u8fc7@PostConstruct\u6ce8\u89e3\u53bb\u505a\u4e00\u4e9b\u521d\u59cb\u5316\u5de5\u4f5c\uff0c\u6709\u65f6\u4f1a\u6d89\u53ca\u5230\u8c03\u7528\u5176\u4ed6 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[42],"tags":[248],"class_list":["post-2044","post","type-post","status-publish","format-standard","hentry","category-spring-cloud","tag-eureka"],"_links":{"self":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/posts\/2044","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/comments?post=2044"}],"version-history":[{"count":0,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/posts\/2044\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/media?parent=2044"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/categories?post=2044"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/tags?post=2044"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}