[网络协议]OpenFeign发送http请求

1.在pom.xml引入

     <!-- https://mvnrepository.com/artifact/org.springframework.cloud/spring-cloud-starter-openfeign -->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-openfeign</artifactId>
            <version>2.2.5.RELEASE</version>
        </dependency>
        <!-- https://mvnrepository.com/artifact/io.github.openfeign/feign-okhttp -->
        <dependency>
            <groupId>io.github.openfeign</groupId>
            <artifactId>feign-okhttp</artifactId>
            <version>11.0</version>
        </dependency>

2.在启动类上开启配置

3.OpenFeign 发送http请求

package com.xxmfl.xiaoyi.mp.service;

import com.xxmfl.bms.common.api.CommonResult;
import com.xxmfl.bms.model.UomgUser;
import org.springframework.cloud.openfeign.FeignClient;
import org.springframework.http.MediaType;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;

@FeignClient(url = "http://51xy.xyz:30003/api", name = "api")
public interface FeignService {
    @RequestMapping(value = "/pay/demo2", method = RequestMethod.GET,
            produces = {MediaType.APPLICATION_JSON_VALUE})
    CommonResult demo(@RequestParam(value = "username") String username);

    @RequestMapping(value = "/pay/demo4", method = RequestMethod.POST,
            produces = {MediaType.APPLICATION_JSON_VALUE})
    CommonResult demo2(@RequestBody UomgUser uomguser);
    
}

package com.xxmfl.xiaoyi.mp.controller.api;

import cn.hutool.core.date.DateTime;
import com.xxmfl.bms.common.api.CommonResult;
import com.xxmfl.bms.model.TBillRecord;
import com.xxmfl.bms.model.TGoodsDefine;
import com.xxmfl.bms.model.UomgUser;
import com.xxmfl.xiaoyi.mp.service.FeignService;
import com.xxmfl.xiaoyi.mp.service.TBillRecordService;
import com.xxmfl.xiaoyi.mp.service.TGoodsDefineService;
import com.xxmfl.xiaoyi.mp.service.UomguserService;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.*;

import javax.servlet.http.HttpServletRequest;
import java.time.LocalDateTime;
import java.time.format.DateTimeFormatter;

@Controller
@RequestMapping("pay")
public class PayController {
   

  @Autowired
  private FeignService feignService;

    @RequestMapping("/demo1")
    @ResponseBody
    public  String  demo1(){
        feignService.demo("demo");
        return null;
    }
    @RequestMapping("/demo2")
    @ResponseBody
    public  String  demo2(@RequestParam("username") String username){
        System.out.println(username);
        return null;
    }


  @RequestMapping("/demo3")
  @ResponseBody
  public  String  demo3(){
      UomgUser user=new UomgUser();
      user.setUsername("123");
      user.setPassword("456");
     feignService.demo2(user);
        return null;
    }
    @RequestMapping("/demo4")
    @ResponseBody
    public String demo4(@RequestBody UomgUser user){
        System.out.println("你成功了");
        return null;
    }


}

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