{"id":687,"date":"2023-09-08T16:38:34","date_gmt":"2023-09-08T08:38:34","guid":{"rendered":"http:\/\/www.huerpu.cc:7000\/?p=687"},"modified":"2024-02-08T14:20:41","modified_gmt":"2024-02-08T06:20:41","slug":"spring-cloudfinchley%e7%89%88%e6%9c%ac%e7%b3%bb%e5%88%97%e6%95%99%e7%a8%8b%e4%b8%89-%e6%9c%8d%e5%8a%a1%e6%b6%88%e8%b4%b9%e8%80%85feign","status":"publish","type":"post","link":"http:\/\/www.huerpu.cc:7000\/?p=687","title":{"rendered":"Spring Cloud(Finchley\u7248\u672c)\u7cfb\u5217\u6559\u7a0b(\u4e09) \u670d\u52a1\u6d88\u8d39\u8005(OpenFeign)"},"content":{"rendered":"

Spring Cloud(Finchley\u7248\u672c)\u7cfb\u5217\u6559\u7a0b(\u4e09) \u670d\u52a1\u6d88\u8d39\u8005(OpenFeign)<\/h3>\n

\u4e00\u3001Feign\u548cOpenFeign\u7684\u5bf9\u6bd4<\/h3>\n

Feign<\/code>\u662fNetflix<\/code>\u516c\u53f8\u5199\u7684\uff0c\u662fSpringCloud<\/code>\u7ec4\u4ef6\u4e2d\u7684\u4e00\u4e2a\u8f7b\u91cf\u7ea7RESTful<\/code>\u7684HTTP<\/code>\u670d\u52a1\u5ba2\u6237\u7aef\uff0c\u662fSpringCloud<\/code>\u4e2d\u7684\u7b2c\u4e00\u4ee3\u8d1f\u8f7d\u5747\u8861\u5ba2\u6237\u7aef\u3002OpenFeign<\/code>\u662fSpringCloud<\/code>\u81ea\u5df1\u7814\u53d1\u7684\uff0c\u5728Feign<\/code>\u7684\u57fa\u7840\u4e0a\u652f\u6301\u4e86Spring MVC<\/code>\u7684\u6ce8\u89e3\uff0c\u5982@RequesMapping<\/code>\u7b49\u7b49\u3002\u662fSpringCloud<\/code>\u4e2d\u7684\u7b2c\u4e8c\u4ee3\u8d1f\u8f7d\u5747\u8861\u5ba2\u6237\u7aef\u3002Feign<\/code>\u662f\u57282019<\/code>\u5c31\u5df2\u7ecf\u4e0d\u518d\u66f4\u65b0\u4e86\uff0c\u968f\u4e4b\u53d6\u4ee3\u7684\u662fOpenFeign<\/code>\uff0c\u4ece\u540d\u5b57\u4e0a\u5c31\u53ef\u4ee5\u77e5\u9053\uff0c\u5b83\u662fFeign<\/code>\u7684\u5347\u7ea7\u7248\u3002<\/p>\n

\n

SpringCloud F \u53caF\u7248\u672c\u4ee5\u4e0a SpringBoot 2.0 \u4ee5\u4e0a\u57fa\u672c\u4e0a\u4f7f\u7528OpenFeign\uff0cOpenFeign\u5982\u679c\u4ece\u6846\u67b6\u7ed3\u6784\u4e0a\u770b\u5c31\u662f2019\u5e74Feign\u505c\u66f4\u540e\u51fa\u73b0\u7248\u672c\uff0c\u4e5f\u53ef\u4ee5\u8bf4\u5927\u591a\u6570\u65b0\u9879\u76ee\u90fd\u7528OpenFeign\uff0c2018\u5e74\u4ee5\u524d\u7684\u9879\u76ee\u5728\u4f7f\u7528Feign\u3002\u7b14\u8005\u5f3a\u70c8\u5efa\u8bae\u4f7f\u7528OpenFeign\uff0c\u7d27\u8ddf\u65b0\u6280\u672f\u65f6\u4ee3\u6f6e\u6d41\u3002<\/p>\n<\/blockquote>\n

\u4e8c\u3001\u521b\u5efahepServiceOpenFeign\u9879\u76ee<\/h3>\n

\u590d\u5236\u9879\u76eeeurekaClient<\/code>\uff0c\u5e76\u91cd\u547d\u540d\u4e3ahepServiceOpenFeign<\/code>\u3002<\/p>\n

\u4fee\u6539pom<\/code>\u6587\u4ef6\uff0c\u4e0b\u9762\u4e09\u9879\u6539\u4e3ahepServiceOpenFeign<\/code>\uff0c\u5e76\u589e\u52a0OpenFeign<\/code>\u4f9d\u8d56\u3002<\/p>\n

<artifactId>hepServiceOpenFeign<\/artifactId>\n<name>hepServiceOpenFeign<\/name>\n<description>hepServiceOpenFeignhepServiceOpenFeign<\/description>\n\n<dependency>\n    <groupId>org.springframework.cloud<\/groupId>\n    <artifactId>spring-cloud-starter-openfeign<\/artifactId>\n<\/dependency><\/code><\/pre>\n
\u4fee\u6539pplication.yml<\/code>\u6587\u4ef6\uff0c\u7aef\u53e3\u6539\u4e3a8007\uff0cspring.application.name<\/code>\u4e3ahepServiceOpenFeign<\/code>\uff0chostname<\/code>\u4e5f\u4e3ahepServiceOpenFeign<\/code>\u3002<\/p>\n
server:\n  port: 8007 # \u7aef\u53e3\u53f7\n\nspring:\n  application:\n    name: hepServiceOpenFeign # Eureka\u540d\u79f0\n\neureka:\n  instance:\n    prefer-ip-address: true\n    hostname: hepServiceOpenFeign\n  client:\n    healthcheck:\n      enabled: true\n    fetch-registry: true\n    register-with-eureka: true\n    service-url:\n      defaultZone: http:\/\/eureka:eurekapwd@www.huerpu.cc:1678\/eureka\/<\/code><\/pre>\n
\u4fee\u6539\u542f\u52a8\u7c7b\u540d\u79f0\u4e3aHepServiceOpenFeignApplication<\/code>\uff0c\u5e76\u52a0\u4e0a@EnableFeignClients<\/code>\u6ce8\u89e3\u5f00\u542fFeign\u7684\u529f\u80fd\u3002<\/p>\n
@SpringBootApplication\n@EnableDiscoveryClient\n@EnableFeignClients\npublic class HepServiceOpenFeignApplication {\n\n    public static void main(String[] args) {\n        SpringApplication.run(HepServiceOpenFeignApplication.class, args);\n    }\n\n}<\/code><\/pre>\n
\u4e09\u3001\u5b9a\u4e49Feign\u63a5\u53e3<\/h3>\n
\u5b9a\u4e49\u4e00\u4e2aFeign<\/code>\u63a5\u53e3\uff0c\u901a\u8fc7@FeignClient("\u670d\u52a1\u540d")<\/code>\uff0c\u6765\u6307\u5b9a\u8c03\u7528\u54ea\u4e2a\u670d\u52a1\u3002\u6bd4\u5982\u5728\u4ee3\u7801\u4e2d\u8c03\u7528\u4e86eurekaClient<\/code>\u670d\u52a1\u7684"\/getUserById"<\/code>\u63a5\u53e3\uff0c\u4ee3\u7801\u5982\u4e0b<\/p>\n
package cc.huerpu.eurekaserver.feign;\n\nimport org.springframework.cloud.openfeign.FeignClient;\nimport org.springframework.web.bind.annotation.RequestMapping;\n\n@FeignClient(value = "eurekaClient")\npublic interface UserService {\n    @RequestMapping(value = "\/getUserById")\n    String getUserById();\n}<\/code><\/pre>\n
\u521b\u5efa\u4e00\u4e2aUserController<\/code>\uff0c\u66b4\u9732\u63a5\u53e3"\/getUserByIdFeign"<\/code>\uff0c\u901a\u8fc7\u4e0a\u9762\u5b9a\u4e49\u7684Feign<\/code>\u5ba2\u6237\u7aefUserService<\/code>\u6765\u6d88\u8d39\u670d\u52a1\u3002<\/p>\n
package cc.huerpu.eurekaserver.controller;\n\nimport cc.huerpu.eurekaserver.feign.UserService;\nimport org.springframework.beans.factory.annotation.Autowired;\nimport org.springframework.web.bind.annotation.RequestMapping;\nimport org.springframework.web.bind.annotation.RestController;\n\n@RestController\npublic class UserController {\n\n    @Autowired\n    private UserService userService;\n    @RequestMapping("\/getUserByIdFeign")\n    public String getUserById(){\n        return "hepServiceOpenFeign UserController: " + userService.getUserById();\n    }\n}<\/code><\/pre>\n
\u56db\u3001OpenFeign\u8c03\u7528\u9a8c\u8bc1<\/h3>\n
\u542f\u52a8\u7a0b\u5e8f\uff0c\u591a\u6b21\u8bbf\u95ee\u63a5\u53e3http:\/\/localhost:8007\/getUserByIdFeign<\/code>\uff0c\u6d4f\u89c8\u5668\u4ea4\u66ff\u663e\u793a<\/p>\n
hepServiceOpenFeign UserController: {id:1,name:jason,age:23} from server:eurekaServer:8008\nhepServiceOpenFeign UserController: {id:1,name:jason,age:23} from server:eurekaServer:8009<\/code><\/pre>\n
\"image-20240208123253991\"<\/p>\n
\u4e94\u3001OpenFeign\u914d\u7f6e\u65e5\u5fd7<\/h3>\n
5.1 OpenFeignConfig\u914d\u7f6e\u65e5\u5fd7<\/h4>\n
\u589e\u52a0\u4e00\u4e2aOpenFeignConfig<\/code>\u914d\u7f6e\uff0c\u8bbe\u7f6e\u65e5\u5fd7\u7ea7\u522b\u4e3aFULL<\/code>\u3002<\/p>\n
package cc.huerpu.eurekaclient.config;\n\nimport feign.Logger;\nimport org.springframework.context.annotation.Bean;\nimport org.springframework.context.annotation.Configuration;\n\n@Configuration\npublic class OpenFeignConfig {\n    @Bean\n    public Logger.Level feignLoggerLevel(){\n        \/\/ OpenFeign\u7684\u65e5\u5fd7\u7ea7\u522b\u6709\u56db\u79cd\u5206\u522b\u4e3aNONE\u3001BASIC\u3001HEADERS\u3001FULL\u3002\u8fd9\u91cc\u8f93\u51fa\u65e5\u5fd7\u7ea7\u522bFULL\n        return Logger.Level.FULL;\n    }\n}<\/code><\/pre>\n
SpringBoot<\/code>\u7684\u65e5\u5fd7\u7ea7\u522b\u9ed8\u8ba4\u4e3ainfo<\/code>\uff0c\u5927\u4e8efull<\/code>\uff0c\u5bfc\u81f4feign<\/code>\u7684\u65e5\u5fd7\u914d\u7f6e\u4e0d\u4f1a\u8f93\u51fa\uff0c\u6240\u4ee5\u52a0\u4ee5\u4e0b\u914d\u7f6e<\/p>\n
#SpringBoot\u7684\u65e5\u5fd7\u7ea7\u522b\u9ed8\u8ba4\u4e3ainfo,\u5927\u4e8efull,\u5bfc\u81f4feign\u7684\u65e5\u5fd7\u914d\u7f6e\u4e0d\u4f1a\u8f93\u51fa\uff0c\u6240\u4ee5\u52a0\u4ee5\u4e0b\u914d\u7f6e\nlogging.level.cc.huerpu.eurekaserver.feign: DEBUG<\/code><\/pre>\n
\u91cd\u542f\u9879\u76ee\uff0c\u5e76\u8c03\u7528\u63a5\u53e3\u53ef\u5f97\u65e5\u5fd7\u7684\u4fe1\u606f<\/p>\n
\"image-20240208134453425\"<\/p>\n
5.2 \u901a\u8fc7\u914d\u7f6e\u6587\u4ef6\u914d\u7f6e\u65e5\u5fd7<\/h4>\n
\u5bf9\u6240\u6709\u670d\u52a1\u751f\u6548<\/p>\n
# Feign\u65e5\u5fd7\u5168\u5c40\u914d\u7f6e\nfeign:\n  client:\n    config:\n      default:\n        loggerLevel: FULL<\/code><\/pre>\n
\u5bf9\u5355\u4e2a\u670d\u52a1\u6709\u6548<\/p>\n
# Feign\u9488\u5bf9\u67d0\u4e2a\u670d\u52a1\u914d\u7f6e\u65e5\u5fd7\nfeign:\n  client:\n    config:\n      #\u60f3\u8981\u8c03\u7528\u7684\u5fae\u670d\u52a1\u540d\u79f0\n      EUREKACLIENT:\n        loggerLevel: FULL<\/code><\/pre>\n
\u516d\u3001OpenFeign\u81ea\u5b9a\u4e49\u62e6\u622a\u5668<\/h3>\n
OpenFeign<\/code>\u62e6\u622a\u5668\uff0c\u65e0\u975e\u5c31\u662f\u548c\u6211\u4eecSpringMVC<\/code>\u4e2d\u7684\u62e6\u622a\u5668\u4e00\u6837\uff0c\u6bcf\u6b21Feign<\/code>\u53d1\u8d77http<\/code>\u8c03\u7528\u4e4b\u524d\uff0c\u4f1a\u53bb\u6267\u884c\u62e6\u622a\u5668\u4e2d\u7684\u903b\u8f91\uff0c\u6bd4\u5982\u7edf\u4e00\u6dfb\u52a0header<\/code>\u5934\u4fe1\u606f\uff0c\u5bf9body<\/code>\u4f53\u4e2d\u7684\u4fe1\u606f\u505a\u4fee\u6539\u6216\u66ff\u6362\u3002Feign<\/code>\u63d0\u4f9b\u4e86 feign.RequestInterceptor<\/code> \u63a5\u53e3\uff0c\u53ea\u9700\u5b9e\u73b0\u8be5\u63a5\u53e3\uff0c\u5b9e\u73b0\u5bf9\u5e94\u65b9\u6cd5\uff0c\u5e76\u5c06\u5b9e\u73b0\u7c7b\u901a\u8fc7 @Configuration<\/code>\u4ea4\u7ed9spring<\/code>\u5bb9\u5668\u7ba1\u7406\uff0c\u5373\u53ef\u52a0\u4e0a\u6211\u4eec\u81ea\u5df1\u7684\u901a\u7528\u5904\u7406\u903b\u8f91\u3002<\/p>\n
\u901a\u5e38\u6211\u4eec\u8c03\u7528\u7684\u63a5\u53e3\u90fd\u662f\u6709\u6743\u9650\u63a7\u5236\u7684\uff0c\u5f88\u591a\u65f6\u5019\u53ef\u80fd\u8ba4\u8bc1\u7684\u503c\u662f\u901a\u8fc7\u53c2\u6570\u53bb\u4f20\u9012\u7684\uff0c\u8fd8\u6709\u5c31\u662f\u901a\u8fc7\u8bf7\u6c42\u5934 \u53bb\u4f20\u9012\u8ba4\u8bc1\u4fe1\u606f\uff0c\u6bd4\u5982 Basic<\/code> \u8ba4\u8bc1\u65b9\u5f0f\u3002<\/p>\n
\u521b\u5efa\u4e00\u4e2aFeignAuthRequestInterceptor<\/code>\uff0c\u5e76\u5b9e\u73b0RequestInterceptor<\/code>\u63a5\u53e3\u3002<\/p>\n
package cc.huerpu.eurekaclient.config;\n\nimport feign.RequestInterceptor;\nimport feign.RequestTemplate;\nimport java.util.UUID;\n\npublic class FeignAuthRequestInterceptor implements RequestInterceptor {\n    @Override\n    public void apply(RequestTemplate requestTemplate) {\n        String uuid = UUID.randomUUID().toString();\n        requestTemplate.header("Authorization",uuid);\n    }\n}<\/code><\/pre>\n
OpenFeignConfig<\/code>\u4e2d\u589e\u52a0FeignAuthRequestInterceptor<\/code>\u914d\u7f6e\u3002<\/p>\n
package cc.huerpu.eurekaclient.config;\n\nimport feign.Logger;\nimport org.springframework.context.annotation.Bean;\nimport org.springframework.context.annotation.Configuration;\n\n@Configuration\npublic class OpenFeignConfig {\n    @Bean\n    public Logger.Level feignLoggerLevel(){\n        \/\/ OpenFeign\u7684\u65e5\u5fd7\u7ea7\u522b\u6709\u56db\u79cd\u5206\u522b\u4e3aNONE\u3001BASIC\u3001HEADERS\u3001FULL\u3002\u8fd9\u91cc\u8f93\u51fa\u65e5\u5fd7\u7ea7\u522bFULL\n        return Logger.Level.FULL;\n    }\n    @Bean\n    public FeignAuthRequestInterceptor feignAuthRequestInterceptor(){\n        return new FeignAuthRequestInterceptor();\n    }\n}<\/code><\/pre>\n
\u91cd\u542f\u9879\u76ee\uff0c\u5e76\u8c03\u7528\u63a5\u53e3\u53ef\u4ee5\u770b\u5230Authorization: 827232db-21fd-4880-aae8-04c974f75a7d<\/code>\u4fe1\u606f<\/p>\n
\"image-20240208135004041\"<\/p>\n
\u4e03\u3001\u8d85\u65f6\u65f6\u95f4\u914d\u7f6e<\/h3>\n
OpenFeign\u9ed8\u8ba4\u8d85\u65f6\u65f6\u95f4\u4e3a1s\uff0c\u8d85\u8fc71s\u5c31\u4f1a\u8fd4\u56de\u9519\u8bef\u9875\u9762\u3002\u5982\u679c\u6211\u4eec\u7684\u63a5\u53e3\u5904\u7406\u4e1a\u52a1\u786e\u5b9e\u8d85\u8fc71s,\u5c31\u9700\u8981\u5bf9\u63a5\u53e3\u8fdb\u884c\u8d85\u65f6\u914d\u7f6e<\/p>\n
7.1 \u5168\u5c40\u914d\u7f6e<\/h4>\n
\u5728OpenFeignConfig\u4e2d\u6ce8\u5165\u4e00\u4e2abean\u3002<\/p>\n
@Bean\npublic Request.Options options(){\n    return new Request.Options(5000,10000);\n}<\/code><\/pre>\n
7.2 yml\u914d\u7f6e<\/h4>\n
feign:\n  client:\n    config:\n      gulimall-ware:\n        logger-level: FULL\n        # \u8fde\u63a5\u8d85\u65f6\u65f6\u95f4\n        connectTimeout: 5000\n        # \u8bf7\u6c42\u5904\u7406\u8d85\u65f6\u65f6\u95f4\n        readTimeout: 10000\n        request-interceptors: cc.huerpu.eurekaclient.config.FeignAuthRequestInterceptor<\/code><\/pre>\n
\n
\u672c\u6587\u53c2\u8003SpringCloud OpenFeign\u94fe\u63a5\uff1ahttps:\/\/docs.spring.io\/spring-cloud-openfeign\/docs\/4.0.2\/reference\/html\/<\/code><\/p>\n<\/blockquote>\n","protected":false},"excerpt":{"rendered":"
Spring Cloud(Finchley\u7248\u672c)\u7cfb\u5217\u6559\u7a0b(\u4e09) \u670d\u52a1\u6d88\u8d39\u8005(OpenFeign) \u4e00\u3001Feig […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[24],"tags":[],"class_list":["post-687","post","type-post","status-publish","format-standard","hentry","category-spring-cloudfinchley"],"_links":{"self":[{"href":"http:\/\/www.huerpu.cc:7000\/index.php?rest_route=\/wp\/v2\/posts\/687","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.huerpu.cc:7000\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.huerpu.cc:7000\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.huerpu.cc:7000\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.huerpu.cc:7000\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=687"}],"version-history":[{"count":2,"href":"http:\/\/www.huerpu.cc:7000\/index.php?rest_route=\/wp\/v2\/posts\/687\/revisions"}],"predecessor-version":[{"id":715,"href":"http:\/\/www.huerpu.cc:7000\/index.php?rest_route=\/wp\/v2\/posts\/687\/revisions\/715"}],"wp:attachment":[{"href":"http:\/\/www.huerpu.cc:7000\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=687"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.huerpu.cc:7000\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=687"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.huerpu.cc:7000\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=687"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}