Springboot HTTP如何调用其他服务

目录

• HTTP如何调用其他服务
• 1.GET请求
• 2.POST请求
• springboot请求其他服务器的http接口
• 使用Get方式，携带headers请求数据
• 使用Post方式，携带body请求数据

HTTP如何调用其他服务

1.GET请求

1.1Client代码

import com.alibaba.fastjson.JSON;
import org.springframework.stereotype.Service;
import org.springframework.web.client.RestTemplate;
import org.springframework.web.util.UriComponentsBuilder;
import java.net.URI;
import java.util.HashMap;
import java.util.Map;
 
@Service
public class UserInfoClient {
    public String getUserTotalAmount(){
        Map<String,String> map=new HashMap<String,String>();
        map.put("name","123");
        map.put("password","123");
        URI uri = UriComponentsBuilder.fromHttpUrl("http://localhost:8081/spring/test")
                .queryParam("jsonString",JSON.toJSONString(map))
                .queryParam("token","12122222111")
                .build().encode().toUri();
        RestTemplate restTemplate=new RestTemplate();
        String data=restTemplate.getForObject(uri,String.class);
        System.out.println(data);
        return null;
    }
    public static void main(String[] args){
        UserInfoClient c=new UserInfoClient();
        c.getUserTotalAmount();
    }
}

1.2 Service 代码

import org.springframework.web.bind.annotation.*; 
@RestController
@RequestMapping(value = "/spring")
public class Test {
    @RequestMapping(value = "/test",method = RequestMethod.GET)
    public String testSpringBoot(@RequestParam String jsonString,@RequestParam String token){
        System.out.println(jsonString);
        System.out.println(token);
        /*
         *逻辑处理
         */
        return "Spring Boot 测试成功！";
    }
}

2.POST请求

2.1Client代码

import com.alibaba.fastjson.JSON;
import org.springframework.http.*;
import org.springframework.stereotype.Service;
import org.springframework.web.client.RestTemplate;
import java.util.HashMap;
import java.util.Map;
 
@Service
public class UserInfoClient { 
    public String getUserTotalAmount(){
        Map<String,String> map=new HashMap<String,String>();
        map.put("name","123");
        map.put("password","123");
        String url="http://localhost:8081/spring/test";
        //设置请求头信息
        HttpHeaders headers = new HttpHeaders();
        MediaType type = MediaType.parseMediaType("application/json; charset=UTF-8");
        headers.setContentType(type);
        headers.add("Accept", MediaType.APPLICATION_JSON.toString());
        //设置body部分
        HttpEntity<String> entity = new HttpEntity<String>(JSON.toJSONString(map),headers);
        RestTemplate restTemplate=new RestTemplate();
        ResponseEntity<String> result = restTemplate.exchange(url, HttpMethod.POST, entity, String.class);
        System.out.println(result.getBody());
        return null;
    }
    public static void main(String[] args){
        UserInfoClient c=new UserInfoClient();
        c.getUserTotalAmount();
    }
}

2.2 Service代码

import org.springframework.web.bind.annotation.*;

@RestController
@RequestMapping(value = "/spring")
public class Test {
    @RequestMapping(value = "/test",method = RequestMethod.POST)
    public String testSpringBoot(@RequestBody UserBean userBean){
        System.out.println(userBean);
        /*
         *逻辑处理
         */
        return "Spring Boot 测试成功！";
    }
}

springboot请求其他服务器的http接口

使用Get方式，携带headers请求数据

//注入
@Autowired
private RestTemplate restTemplate;
@RequestMapping("/FaceInfo")
@ResponseBody
public Object   faceInfo(String startTime,String endTime,Integer size ){
    String apiURL = "http://www.05un.cn/wspp/GceGroups";
    HttpHeaders headers = new HttpHeaders();
   headers.add("userId","38");
    // headers.set("userId","38");
    headers.setContentType(MediaType.APPLICATION_JSON);
    Map<String, Object> requestParam = new HashMap<>();
    HttpEntity<Map<String, Object>> request = new HttpEntity<Map<String, Object>>(requestParam, headers);
        ResponseEntity<String> entity2 = restTemplate.exchange(apiURL, HttpMethod.GET, request, String.class);
    String body = entity2.getBody();
    return body;
}

使用Post方式，携带body请求数据

//注入
@Autowired
private RestTemplate restTemplate;
@RequestMapping("/FaceInfo")
@ResponseBody
public Object   faceInfo(String startTime,String endTime,Integer size ){
    String apiURL = "http://www.0531yun.cn/wsjc/app/Login";
    HttpHeaders headers = new HttpHeaders();
    headers.setContentType(MediaType.APPLICATION_JSON);
    Map<String, Object> requestParam = new HashMap<>();
    requestParam.put("loginName", "jnr");
    requestParam.put("password", "jn");
    HttpEntity<Map<String, Object>> request = new HttpEntity<Map<String, Object>>(requestParam, headers);
    String s=request.toString();
    ResponseEntity<String> entity2 = restTemplate.exchange(apiURL, HttpMethod.POST, request, String.class);
    String body = entity2.getBody();
    return body;
}

以上为个人经验，希望能给大家一个参考，也希望大家多多支持我们。