今天小编给大家分享一下怎么使用feign配置网络ip代理的相关知识点,内容详细,逻辑清晰,相信大部分人都还太了解这方面的知识,所以分享这篇文章给大家参考一下,希望大家阅读完这篇文章后有所收获,下面我们一起来了解一下吧。
feign配置网络ip代理
问题描述
测试环境将需要访问的外网地址加入了白名单,但是docker和宿主机网络不一样(试过挂载宿主机网络也不行,但是挂载宿主机网络会打乱原有的网络环境),所以造成了在宿主机上面可以访问该地址,但是docker里面是访问不到外网的地址,所使用feign的时候加上ip代理,代理宿主机ip来对外网地址进行访问!
为什么不直接对docker设置网络代理,测试环境里面基本都是内部服务调用,如果设置则会导致其网络不一致,并且开发测试正式环境较为复杂,如果不需要的时候直接在配置文件配置为null就行
1.依赖
<dependency> <groupId>org.apache.httpcomponents</groupId> <artifactId>httpclient</artifactId> <version>4.5.10</version></dependency><dependency> <groupId>io.github.openfeign</groupId> <artifactId>feign-okhttp</artifactId></dependency>//可能还需要feign相关依赖 feign-okhttp主要用来做网络代理,依赖需要自行百度
2.feignclinet接口
import io.swagger.annotations.ApiOperation;import org.springframework.cloud.openfeign.FeignClient;import org.springframework.http.MediaType;import org.springframework.web.bind.annotation.PathVariable;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.RequestMethod;import org.springframework.web.bind.annotation.RequestParam;import java.util.List;@FeignClient(url = "http://xxx.xxx.xxx.xxx:8090" ,name = "slmodel-one")public interface SlModelOneClient { @ApiOperation("XXXXXXX") @RequestMapping( method = RequestMethod.GET, value = "/efdcserver/efdcserver/getEfdcCodeByProjectName", consumes = "application/json;charset=UTF-8", produces = MediaType.APPLICATION_JSON_UTF8_VALUE) List<JsonAreaCode> getEfdcCodeByProjectName( @RequestParam("projectName") String projectName); @ApiOperation("XXXXXXX") @RequestMapping( method = RequestMethod.POST, value = "/efdcserver/hydro/getDepthMapByPost?efdcCode={efdcCode}&planName={planName}", consumes = "application/json;charset=UTF-8", produces = MediaType.APPLICATION_JSON_UTF8_VALUE) DepthMap getDepthMapByPost( @PathVariable(name="efdcCode") String efdcCode, @PathVariable(name ="planName")String planName); @ApiOperation("XXXXXXX") @RequestMapping( method = RequestMethod.GET, value = "/efdcserver/hydro/getPoint?planName={planName}&efdcCode={efdcCode}&lgtd={lgtd}<td={lttd}", consumes = "application/json;charset=UTF-8", produces = MediaType.APPLICATION_JSON_UTF8_VALUE) DepthMap getPointDepthByGet( @PathVariable(name ="planName")String planName, @PathVariable(name="efdcCode") String efdcCode , @PathVariable(name ="lotd")Double lgtd, @PathVariable(name ="lttd")Double lttd);}
3.Config
import okhttp3.*;import org.springframework.beans.factory.annotation.Value;import org.springframework.cloud.commons.httpclient.DefaultOkHttpClientFactory;import org.springframework.cloud.commons.httpclient.OkHttpClientFactory;import org.springframework.cloud.openfeign.EnableFeignClients;import org.springframework.context.annotation.Bean;import org.springframework.context.annotation.Configuration;import java.io.IOException;import java.net.*;import java.util.ArrayList;import java.util.Collections;import java.util.List;import java.util.Set;@Configuration@EnableFeignClients(basePackages = "com.ceshi..map.client")public class Config { @Value("${proxy.host}") private String proxyHost; @Value("${proxy.port}") private Integer proxyPort; @Value("#{'${proxy.domains}'.split(',')}") private Set<String> domainList; @Bean public OkHttpClientFactory okHttpClientFactory(OkHttpClient.Builder builder) { return new ProxyOkHttpClientFactory(builder); } class ProxyOkHttpClientFactory extends DefaultOkHttpClientFactory { public ProxyOkHttpClientFactory(OkHttpClient.Builder builder) { super(builder); //如果配置文件中的代理信息为null 则该代理ip配置不生效 if(proxyHost!=null&&proxyPort!=null&&domainList!=null) { Proxy proxy = new Proxy(Proxy.Type.HTTP, new InetSocketAddress(proxyHost, proxyPort)); List<Proxy> proxyList = new ArrayList<>(1); proxyList.add(proxy); builder.proxySelector(new ProxySelector() { @Override public List<Proxy> select(URI uri) { if (uri == null || !domainList.contains(uri.getHost())) { return Collections.singletonList(Proxy.NO_PROXY); } return proxyList; } @Override public void connectFailed(URI uri, SocketAddress sa, IOException ioe) { } }); } } }}
4.yml
使用IP代理
feign: okhttp: enabled: trueproxy: host: 199.168.233.32 //需要代理的ip port: 4444 domains: 222.222.231.116,222.222.231.117 //需要访问的地址 host 如果多个 用逗号分割
不使用IP代理
feign: okhttp: enabled: trueproxy: host: null port: null domains: null
调用指定ip的feign接口
@FeignClient(value = “center-educational-server”,url=“http://127.0.0.1:10005”)
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