{"id":1778,"date":"2023-03-26T22:28:30","date_gmt":"2023-03-26T14:28:30","guid":{"rendered":"https:\/\/www.appblog.cn\/?p=1778"},"modified":"2023-04-23T21:18:11","modified_gmt":"2023-04-23T13:18:11","slug":"spring-cloud-simple-gray-publish","status":"publish","type":"post","link":"https:\/\/www.appblog.cn\/index.php\/2023\/03\/26\/spring-cloud-simple-gray-publish\/","title":{"rendered":"Spring Cloud \u7b80\u5355\u7070\u5ea6\u53d1\u5e03"},"content":{"rendered":"<h2>\u9700\u6c42<\/h2>\n<p>\u65b0\u5efa\u4e09\u4e2a\u9879\u76ee\uff1a<\/p>\n<ul>\n<li><code>demo-server<\/code> \u670d\u52a1\u7aef<\/li>\n<li><code>demo-client<\/code> \u5ba2\u6237\u7aef<\/li>\n<li><code>demo-gateway<\/code> \u7f51\u5173\u5c42<\/li>\n<\/ul>\n<p><!-- more --><\/p>\n<p>\u73b0\u5728\u5e0c\u671b\u53ef\u4ee5\u6839\u636e\u7528\u6237\u8bf7\u6c42\u8c03\u7528\u4e0d\u540c\u7248\u672c\u7684\u4ee3\u7801\uff0c\u5982\u4e0b\u6240\u793a<\/p>\n<pre><code>gateway -&gt; client(v1\u7248\u672c) -&gt; server(v1\u7248\u672c)\n        -&gt; client(v2\u7248\u672c) -&gt; server(v2\u7248\u672c)<\/code><\/pre>\n<h2>\u5206\u6790<\/h2>\n<p>\u53ef\u77e5\uff0c<code>gateway<\/code>\u9879\u76ee\u548c<code>client<\/code>\u9879\u76ee\uff0c\u9700\u8981\u6211\u4eec\u6839\u636e\u4e0d\u540c\u53c2\u6570\u6765\u5e72\u6d89\u8d1f\u8f7d\u5206\u53d1\u3002Spring Cloud\u662f\u4f7f\u7528<code>ribbon<\/code>\u4f5c\u4e3a\u8d1f\u8f7d\u5747\u8861\uff0c\u8fd9\u91cc\u6211\u4eec\u5f15\u5165\u5982\u4e0bpom\u4f9d\u8d56\uff1a<\/p>\n<pre><code class=\"language-xml\">&lt;dependency&gt;\n    &lt;groupId&gt;io.jmnarloch&lt;\/groupId&gt;\n    &lt;artifactId&gt;ribbon-discovery-filter-spring-cloud-starter&lt;\/artifactId&gt;\n    &lt;version&gt;2.1.0&lt;\/version&gt;\n&lt;\/dependency&gt;<\/code><\/pre>\n<p>GitHub\uff1a<a target=\"_blank\" rel=\"noopener\" href=\"https:\/\/github.com\/jmnarloch\/ribbon-discovery-filter-spring-cloud-starter\">https:\/\/github.com\/jmnarloch\/ribbon-discovery-filter-spring-cloud-starter<\/a><\/p>\n<p>\u5176\u539f\u7406\u662f\u901a\u8fc7\u5339\u914d\u8bf7\u6c42\u91cc\u9762\u7684\u8def\u7531\u53c2\u6570\u4e0e<code>Eureka<\/code>\u6ce8\u518c\u4e2d\u5fc3\u4e0a\u5b9e\u4f8b\u914d\u7f6e\u7684<code>metadata<\/code>\u91cc\u9762\u7684\u53c2\u6570\u503c\uff0c\u5982\u679c\u90fd\u5339\u914d\u4e0a\u4e86\uff0c\u624d\u9009\u62e9\u8be5\u5b9e\u4f8b\u8282\u70b9\u3002<\/p>\n<h2>\u5b9e\u73b0<\/h2>\n<h3>gateway\u9879\u76ee<\/h3>\n<p>\u5728<code>AccessFilter extends ZuulFilter<\/code>\u7684run\u65b9\u6cd5\u4e2d\u589e\u52a0\u5982\u4e0b\u4ee3\u7801\uff1a<\/p>\n<pre><code class=\"language-java\">RequestContext ctx = RequestContext.getCurrentContext();\nHttpServletRequest request = ctx.getRequest();\n\/\/\u7070\u5ea6\u793a\u4f8b\nRibbonFilterContextHolder.clearCurrentContext();\nString version = request.getHeader(&quot;dispatch-version&quot;);\n\nif (version != null &amp;&amp; !&quot;&quot;.equals(version)) {\n    RibbonFilterContextHolder.getCurrentContext().add(&quot;dispatch-version&quot;, version);\n}<\/code><\/pre>\n<p>\u6ce8\u610f\uff1a<code>gateway<\/code>\u9879\u76ee\u8bb0\u5f97\u914d\u7f6e<code>zuul.routes.client-api.sensitiveHeaders=Cookie,Set-Cookie,Authorization<\/code><\/p>\n<h3>client\u9879\u76ee<\/h3>\n<p>\u65b0\u589e<code>WebMvcConfig<\/code>\u7c7b<\/p>\n<pre><code class=\"language-java\">import org.springframework.context.annotation.Configuration;\nimport org.springframework.web.servlet.config.annotation.InterceptorRegistry;\nimport org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;\n\n@Configuration\npublic class WebMvcConfig extends WebMvcConfigurerAdapter {\n\n    @Override\n    public void addInterceptors(InterceptorRegistry registry) {\n        super.addInterceptors(registry);\n        registry.addInterceptor(new VersionInterceptor());\n    }\n\n}<\/code><\/pre>\n<p>\u65b0\u589e<code>VersionInterceptor<\/code>\u7c7b<\/p>\n<pre><code class=\"language-java\">import io.jmnarloch.spring.cloud.ribbon.support.RibbonFilterContextHolder;\nimport org.springframework.web.servlet.handler.HandlerInterceptorAdapter;\n\nimport javax.servlet.http.HttpServletRequest;\nimport javax.servlet.http.HttpServletResponse;\n\npublic class VersionInterceptor extends HandlerInterceptorAdapter {\n    @Override\n    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {\n        RibbonFilterContextHolder.clearCurrentContext();\n        String version = request.getHeader(&quot;dispatch-version&quot;);\n        if (version != null &amp;&amp; !&quot;&quot;.equals(version)) {\n            RibbonFilterContextHolder.getCurrentContext().add(&quot;dispatch-version&quot;, version);\n        }\n\n        return true;\n    }\n}<\/code><\/pre>\n<p>\u5728<code>application.yml<\/code>\u91cc\u589e\u52a0\uff1a<\/p>\n<pre><code class=\"language-yml\">eureka:\n  instance:\n    metadata-map:\n      dispatch-version: v1<\/code><\/pre>\n<h3>server\u9879\u76ee<\/h3>\n<p>\u5728<code>application.yml<\/code>\u91cc\u589e\u52a0\uff1a<\/p>\n<pre><code class=\"language-yml\">eureka:\n  instance:\n    metadata-map:\n      dispatch-version: v1<\/code><\/pre>\n<h2>\u9a8c\u8bc1<\/h2>\n<ul>\n<li>\u542f\u52a8<code>gateway<\/code>\uff0c<code>client<\/code>\uff0c<code>server<\/code>\u9879\u76ee<\/li>\n<li>\u6a21\u62df\u8bf7\u6c42\u5728header\u91cc\u9762\u8bbe\u7f6e<code>dispatch-version=v1<\/code>\uff0c\u53d1\u73b0\u8bbf\u95ee\u6b63\u5e38\uff0c\u5982\u679c\u628a<code>dispatch-version<\/code>\u6539\u6210<code>v<\/code>2\uff0c\u53d1\u73b0\u8bbf\u95ee\u4e0d\u4e86<\/li>\n<li>\u8fd9\u65f6\uff0c\u4fee\u6539<code>client<\/code>\u548c<code>server<\/code>\u9879\u76ee\u7684\u7aef\u53e3\uff0c\u5e76\u4e14<code>dispatch-version<\/code>\u6539\u6210<code>v2<\/code>\uff0c\u518d\u542f\u52a8\u65b0\u5b9e\u4f8b\uff0c\u8fd9\u65f6\u518d\u6a21\u62df\u8bf7\u6c42<code>dispatch-version=v2<\/code>\uff0c\u53d1\u73b0\u8bbf\u95ee\u6b63\u5e38\u3002<\/li>\n<li>\u6765\u56de\u4fee\u6539<code>dispatch-version<\/code>\u7684\u503c\uff0c\u53d1\u73b0<code>v1<\/code>\u7684\u8bf7\u6c42\u53ea\u4f1a\u8bbf\u95ee<code>v1<\/code>\u7248\u672c\uff0c<code>v2<\/code>\u7684\u8bf7\u6c42\u53ea\u4f1a\u8bbf\u95ee<code>v2<\/code>\u7248\u672c\u3002\u81f3\u6b64\uff0c\u7070\u5ea6\u53d1\u5e03\u7684demo\u5df2\u9a8c\u8bc1\u6210\u529f\u3002<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>\u9700\u6c42 \u65b0\u5efa\u4e09\u4e2a\u9879\u76ee\uff1a demo-server \u670d\u52a1\u7aef demo-client \u5ba2\u6237\u7aef demo-gateway [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[42,448],"tags":[449],"class_list":["post-1778","post","type-post","status-publish","format-standard","hentry","category-spring-cloud","category-release","tag-449"],"_links":{"self":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/posts\/1778","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=1778"}],"version-history":[{"count":0,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/posts\/1778\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/media?parent=1778"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/categories?post=1778"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/tags?post=1778"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}