使用Feign传递请求头信息(Finchley版本)

import feign.RequestInterceptor;

import feign.RequestTemplate;

import org.springframework.web.context.request.RequestContextHolder;

import org.springframework.web.context.request.ServletRequestAttributes;

import javax.servlet.http.HttpServletRequest;

import java.util.Enumeration;

/**

  * Feign请求拦截器（设置请求头，传递登录信息）

  *

  * @author simon

  * @create 2018-09-07 9:51

  **/

public class FeignBasicAuthRequestInterceptor implements RequestInterceptor {

   @Override

   public void apply(RequestTemplate requestTemplate) {

    ServletRequestAttributes attributes = (ServletRequestAttributes) RequestContextHolder

            .getRequestAttributes();

    HttpServletRequest request = attributes.getRequest();

    Enumeration<String> headerNames = request.getHeaderNames();

    if (headerNames != null ) {

      while (headerNames.hasMoreElements()) {

        String name = headerNames.nextElement();

        String values = request.getHeader(name);

        requestTemplate.header(name, values);

      }

    }

   }

}

public class FeignBasicAuthRequestInterceptor implements RequestInterceptor {

   @Override

   public void apply(RequestTemplate requestTemplate) {

    ServletRequestAttributes attributes = (ServletRequestAttributes) RequestContextHolder

            .getRequestAttributes();

    HttpServletRequest request = attributes.getRequest();

    Enumeration<String> headerNames = request.getHeaderNames();

    if (headerNames != null ) {

      while (headerNames.hasMoreElements()) {

        String name = headerNames.nextElement();

        String values = request.getHeader(name);

        requestTemplate.header(name, values);

      }

    }

    Enumeration<String> bodyNames = request.getParameterNames();

      StringBuffer body = new StringBuffer();

      if (bodyNames != null ) {

          while (bodyNames.hasMoreElements()) {

            String name = bodyNames.nextElement();

            String values = request.getParameter(name);

            body.append(name).append( "=" ).append(values).append( "&" );

          }

      }

      if (body.length()!= 0 ) {

        body.deleteCharAt(body.length()- 1 );

        template.body(body.toString());

        logger.info( "feign interceptor body:{}" ,body.toString());

    }

   }

}

package com.southgis.ibase.personalConfigure.config;

import com.southgis.ibase.utils.FeignBasicAuthRequestInterceptor;

import com.southgis.ibase.utils.FeignSpringFormEncoder;

import feign.RequestInterceptor;

import feign.codec.Encoder;

import org.springframework.context.annotation.Bean;

import org.springframework.context.annotation.Configuration;

/**

  * Feign配置注册（全局）

  *

  * @author simon

  * @create 2018-08-20 11:44

  **/

@Configuration

public class FeignSupportConfig {

   /**

    * feign请求拦截器

    *

    * @return

    */

   @Bean

   public RequestInterceptor requestInterceptor(){

    return new FeignBasicAuthRequestInterceptor();

   }

}

@FeignClient (name = "organ" ,path = "/organ/OrganInfo" ,configuration = FeignSupportConfig. class )

package com.chitic.module.core.config;

import feign.RequestInterceptor;

import org.springframework.context.annotation.Bean;

import org.springframework.context.annotation.Configuration;

import org.springframework.web.context.request.RequestContextHolder;

import org.springframework.web.context.request.ServletRequestAttributes;

import javax.servlet.http.HttpServletRequest;

import java.util.Enumeration;

@Configuration

public class FeignConfig {

     @Bean

     public RequestInterceptor headerInterceptor() {

         return template -> {

             ServletRequestAttributes attributes = (ServletRequestAttributes) RequestContextHolder.getRequestAttributes();

             if ( null != attributes) {

                 HttpServletRequest request = attributes.getRequest();

                 Enumeration<String> headerNames = request.getHeaderNames();

                 if (headerNames != null ) {

                     while (headerNames.hasMoreElements()) {

                         String name = headerNames.nextElement();

                         String values = request.getHeader(name);

                         template.header(name, values);

                     }

                 }

             }

         };

     }

}