{"id":896,"date":"2023-03-11T06:54:28","date_gmt":"2023-03-10T22:54:28","guid":{"rendered":"https:\/\/www.appblog.cn\/?p=896"},"modified":"2023-04-29T16:35:44","modified_gmt":"2023-04-29T08:35:44","slug":"spring-cloud-manually-define-feign-client","status":"publish","type":"post","link":"https:\/\/www.appblog.cn\/index.php\/2023\/03\/11\/spring-cloud-manually-define-feign-client\/","title":{"rendered":"Spring Cloud\u624b\u52a8\u5b9a\u4e49Feign\u5ba2\u6237\u7aef"},"content":{"rendered":"<p>\u624b\u52a8\u5b9a\u4e49Feign\u5ba2\u6237\u7aef\uff0c\u53ef\u4ee5\u7075\u6d3b\u8bbe\u7f6e\u9700\u8981\u8c03\u7528\u7684\u670d\u52a1<\/p>\n<h2>\u57fa\u672c\u5b9e\u73b0<\/h2>\n<p><!-- more --><\/p>\n<pre><code class=\"language-java\">@RestController\n@Import(FeignClientsConfiguration.class)\npublic class AppblogService implements IAppblogService {\n\n    private ClientApi clientApi;\n\n    @Autowired\n    public AppblogService(Decoder decoder, Encoder encoder, Client client, Contract contract) {\n        clientApi = Feign.builder().client(client).encoder(encoder).decoder(decoder).contract(contract)\n                \/\/.target(ClientApi.class, &quot;http:\/\/appblog-pay-provider-channel-gateway-alipay&quot;)\n                \/\/.target(Target.EmptyTarget.create(ClientApi.class, &quot;appblog-pay-provider-channel-gateway-alipay&quot;));\n                .target(new Target.HardCodedTarget&lt;ClientApi&gt;(ClientApi.class, &quot;appblog-pay-provider-channel-gateway-alipay&quot;, &quot;http:\/\/appblog-pay-provider-channel-gateway-alipay&quot;));\n    }\n\n    ...<\/code><\/pre>\n<h2>\u5c01\u88c5\u4f7f\u7528<\/h2>\n<p>Application.java<\/p>\n<pre><code class=\"language-java\">@SpringBootApplication\n@EnableFeignClients\n@EnableDiscoveryClient\n\/\/@EnableEurekaClient\n@Import(FeignClientsConfiguration.class)\npublic class ChannelFrontApplication {\n\n    public static void main(String[] args) {\n        SpringApplication.run(ChannelFrontApplication.class, args);\n    }\n\n}<\/code><\/pre>\n<p>FeignConfig.java<\/p>\n<pre><code class=\"language-java\">import feign.Client;\nimport feign.Contract;\nimport feign.Feign;\nimport feign.codec.Decoder;\nimport feign.codec.Encoder;\nimport lombok.Data;\nimport org.springframework.beans.factory.annotation.Autowired;\nimport org.springframework.stereotype.Component;\n\n@Data\n@Component\npublic class FeignConfig {\n    private Feign.Builder feignBuilder;\n\n    @Autowired\n    public FeignConfig(Decoder decoder, Encoder encoder, Client client, Contract contract) {\n        feignBuilder = Feign.builder().client(client).encoder(encoder).decoder(decoder).contract(contract);\n    }\n}<\/code><\/pre>\n<p>ChannelPayService.java<\/p>\n<pre><code class=\"language-java\">@Resource\nprivate FeignConfig feignConfig;\nprivate Map&lt;String, ChannelGatewayPayApi&gt; channelGatewayApiMap = new HashMap&lt;&gt;();\nprivate Map&lt;String, String&gt; channelGatewayMap = new HashMap&lt;&gt;();\nprivate Map&lt;String, ChannelInfo&gt; channelInfoMap = new HashMap&lt;&gt;();\n\n@ResponseBody\n@Override\npublic Result&lt;ChannelPayResponse&gt; pay(ChannelPayRequest createRequest) {\n\n    ...\n\n    ChannelGatewayPayApi channelGatewayPayApi;\n    if ((channelGatewayPayApi = channelGatewayApiMap.get(channelInfo.getChnlCode())) == null) {\n        channelGatewayPayApi = feignConfig.getFeignBuilder().target(ChannelGatewayPayApi.class, &quot;http:\/\/&quot; + channelProduct.getServiceAppName());\n        channelGatewayApiMap.put(channelInfo.getChnlCode(), channelGatewayPayApi);\n        channelGatewayMap.put(channelInfo.getChnlCode(), channelProduct.getServiceAppName().substring(channelProduct.getServiceAppName().indexOf(&quot;gateway&quot;) + 8));\n    }\n\n    ...\n\n    Result&lt;ChannelGatewayPayCreateResponse&gt; channelGatewayResult = channelGatewayPayApi.pay(request);\n\n    ...\n}<\/code><\/pre>\n<p>\u53c2\u8003\uff1a<a target=\"_blank\" rel=\"noopener\" href=\"https:\/\/www.cnblogs.com\/jinjiyese153\/p\/8664370.html\">https:\/\/www.cnblogs.com\/jinjiyese153\/p\/8664370.html<\/a><br \/>\n\u53c2\u8003\uff1a<a target=\"_blank\" rel=\"noopener\" href=\"https:\/\/my.oschina.net\/joryqiao\/blog\/1925633\">https:\/\/my.oschina.net\/joryqiao\/blog\/1925633<\/a><br \/>\n\u53c2\u8003\uff1a<a target=\"_blank\" rel=\"noopener\" href=\"https:\/\/stackoverflow.com\/questions\/43733569\/how-can-i-change-the-feign-url-during-the-runtime\">https:\/\/stackoverflow.com\/questions\/43733569\/how-can-i-change-the-feign-url-during-the-runtime<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u624b\u52a8\u5b9a\u4e49Feign\u5ba2\u6237\u7aef\uff0c\u53ef\u4ee5\u7075\u6d3b\u8bbe\u7f6e\u9700\u8981\u8c03\u7528\u7684\u670d\u52a1 \u57fa\u672c\u5b9e\u73b0 @RestController @Import [&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":[251],"class_list":["post-896","post","type-post","status-publish","format-standard","hentry","category-spring-cloud","tag-feign"],"_links":{"self":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/posts\/896","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=896"}],"version-history":[{"count":0,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/posts\/896\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/media?parent=896"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/categories?post=896"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/tags?post=896"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}