JeecgBoot 2.4 微服务正式版本发布，基于SpringBoot的低代码平台

jeecg-boot/jeecg-boot-starter/jeecg-boot-starter-cloud/src/main/java/org/jeecg/starter/cloud/config/FeignClientConfig.java

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+package org.jeecg.starter.cloud.config;
+
+import feign.Feign;
+import feign.Logger;
+import feign.RequestInterceptor;
+import feign.codec.Encoder;
+import feign.form.spring.SpringFormEncoder;
+import lombok.extern.slf4j.Slf4j;
+import org.jeecg.common.constant.CommonConstant;
+import org.springframework.beans.factory.ObjectFactory;
+import org.springframework.boot.autoconfigure.AutoConfigureBefore;
+import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
+import org.springframework.boot.autoconfigure.http.HttpMessageConverters;
+import org.springframework.cloud.openfeign.FeignAutoConfiguration;
+import org.springframework.cloud.openfeign.support.SpringEncoder;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.context.annotation.Primary;
+import org.springframework.context.annotation.Scope;
+import org.springframework.web.context.request.RequestContextHolder;
+import org.springframework.web.context.request.ServletRequestAttributes;
+
+import javax.servlet.http.HttpServletRequest;
+
+
+@ConditionalOnClass(Feign.class)
+@AutoConfigureBefore(FeignAutoConfiguration.class)
+@Slf4j
+@Configuration
+public class FeignClientConfig {
+
+    @Bean
+    public RequestInterceptor requestInterceptor() {
+        return requestTemplate -> {
+            ServletRequestAttributes attributes = (ServletRequestAttributes) RequestContextHolder.getRequestAttributes();
+            if (null != attributes) {
+                HttpServletRequest request = attributes.getRequest();
+                log.info("Feign request: {}", request.getRequestURI());
+                // 将token信息放入header中
+                String token = request.getHeader(CommonConstant.X_ACCESS_TOKEN);
+                if(token==null){
+                    token = request.getParameter("token");
+                }
+                log.info("Feign request token: {}", token);
+                requestTemplate.header(CommonConstant.X_ACCESS_TOKEN, token);
+            }
+        };
+    }
+
+
+
+    /**
+     * Feign 客户端的日志记录，默认级别为NONE
+     * Logger.Level 的具体级别如下：
+     * NONE：不记录任何信息
+     * BASIC：仅记录请求方法、URL以及响应状态码和执行时间
+     * HEADERS：除了记录 BASIC级别的信息外，还会记录请求和响应的头信息
+     * FULL：记录所有请求与响应的明细，包括头信息、请求体、元数据
+     */
+    @Bean
+    Logger.Level feignLoggerLevel() {
+        return Logger.Level.FULL;
+    }
+
+    /**
+     * Feign支持文件上传
+     * @param messageConverters
+     * @return
+     */
+    @Bean
+    @Primary
+    @Scope("prototype")
+    public Encoder multipartFormEncoder(ObjectFactory<HttpMessageConverters> messageConverters) {
+        return new SpringFormEncoder(new SpringEncoder(messageConverters));
+    }
+}

jeecg-boot/jeecg-boot-starter/jeecg-boot-starter-cloud/src/main/java/org/jeecg/starter/cloud/config/PersonBeanConfiguration.java

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+package org.jeecg.starter.cloud.config;
+
+import feign.Client;
+import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
+import org.springframework.cloud.netflix.ribbon.SpringClientFactory;
+import org.springframework.cloud.openfeign.ribbon.CachingSpringLoadBalancerFactory;
+import org.springframework.cloud.openfeign.ribbon.LoadBalancerFeignClient;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+
+@Configuration
+public class PersonBeanConfiguration {
+
+    /**
+     * 创建FeignClient
+     */
+    @Bean
+    @ConditionalOnMissingBean
+    public Client feignClient(CachingSpringLoadBalancerFactory cachingFactory,
+                              SpringClientFactory clientFactory) {
+        return new LoadBalancerFeignClient(new Client.Default(null, null),
+                cachingFactory, clientFactory);
+    }
+}

jeecg-boot/jeecg-boot-starter/jeecg-boot-starter-cloud/src/main/java/org/jeecg/starter/cloud/feign/IJeecgFeignService.java

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+package org.jeecg.starter.cloud.feign;
+
+public interface IJeecgFeignService {
+
+    <T> T newInstance(Class<T> apiType, String name);
+}

jeecg-boot/jeecg-boot-starter/jeecg-boot-starter-cloud/src/main/java/org/jeecg/starter/cloud/feign/impl/JeecgFeignService.java

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+package org.jeecg.starter.cloud.feign.impl;
+
+import feign.*;
+import feign.codec.Decoder;
+import feign.codec.Encoder;
+import lombok.extern.slf4j.Slf4j;
+import org.jeecg.common.constant.CommonConstant;
+import org.jeecg.starter.cloud.feign.IJeecgFeignService;
+import org.springframework.boot.autoconfigure.AutoConfigureBefore;
+import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
+import org.springframework.cloud.openfeign.FeignAutoConfiguration;
+import org.springframework.cloud.openfeign.FeignClientsConfiguration;
+import org.springframework.context.annotation.Import;
+import org.springframework.stereotype.Service;
+import org.springframework.web.context.request.RequestContextHolder;
+import org.springframework.web.context.request.ServletRequestAttributes;
+
+import javax.servlet.http.HttpServletRequest;
+
+@Service
+@Slf4j
+@ConditionalOnClass(Feign.class)
+@AutoConfigureBefore(FeignAutoConfiguration.class)
+@Import(FeignClientsConfiguration.class)
+public class JeecgFeignService implements IJeecgFeignService {
+
+
+    //Feign 原生构造器
+    Feign.Builder builder;
+
+    //创建构造器
+    public JeecgFeignService(Decoder decoder, Encoder encoder, Client client, Contract contract) {
+        this.builder = Feign.builder()
+                .client(client)
+                .encoder(encoder)
+                .decoder(decoder)
+                .contract(contract);
+    }
+
+
+    @Override
+    public <T> T newInstance(Class<T> clientClass, String serviceName) {
+          builder.requestInterceptor(requestTemplate -> {
+              ServletRequestAttributes attributes = (ServletRequestAttributes) RequestContextHolder.getRequestAttributes();
+              if (null != attributes) {
+                  HttpServletRequest request = attributes.getRequest();
+                  log.info("Feign request: {}", request.getRequestURI());
+                  // 将token信息放入header中
+                  String token = request.getHeader(CommonConstant.X_ACCESS_TOKEN);
+                  if(token==null){
+                      token = request.getParameter("token");
+                  }
+                  log.info("Feign request token: {}", token);
+                  requestTemplate.header(CommonConstant.X_ACCESS_TOKEN, token);
+              }
+          });
+        return builder.target(clientClass, String.format("http://%s/", serviceName));
+    }
+}