A description

This case uses http post request to push messages to the specified interface.

The sender needs to pay attention here:

2. Operation case

2.1 Client (push side)

2.1.1 Engineering structure

2.1.2 pom file

    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>4.11</version>
      <scope>test</scope>
    </dependency>
    <dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-web</artifactId>
    </dependency>
    <dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-test</artifactId>
      <scope>test</scope>
    </dependency>
    <dependency>
      <groupId>org.apache.httpcomponents</groupId>
      <artifactId>httpcore</artifactId>
      <version>4.4.10</version>
    </dependency>
    <!-- 阿里fastjson包JSON转换-->
    <dependency>
      <groupId>com.alibaba</groupId>
      <artifactId>fastjson</artifactId>
      <version>1.2.47</version>
    </dependency>
    <!-- https://mvnrepository.com/artifact/org.apache.httpcomponents/httpclient -->
    <dependency>
      <groupId>org.apache.httpcomponents</groupId>
      <artifactId>httpclient</artifactId>
      <version>4.5.6</version>
    </dependency>

    <dependency>
      <groupId>org.slf4j</groupId>
      <artifactId>slf4j-api</artifactId>
      <version>1.7.7</version>
    </dependency>
  </dependencies>

2.1.3 controller

package com.ljf.spring.boot.demo.controller;

import com.alibaba.fastjson.JSON;
import com.fasterxml.jackson.annotation.JsonFormat;
import com.ljf.spring.boot.demo.http.HttpService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.bind.annotation.RestController;

/**
 * @ClassName: UserController
 * @Description: TODO
 * @Author: liujianfu
 * @Date: 2021/03/11 22:36:37 
 * @Version: V1.0
 **/
@RestController
public class UserController {
    @Autowired
    private HttpService httpService;
    @RequestMapping("/push")
    public void Login(@RequestParam(value = "date", required = false) String date,
                        @RequestParam(value = "type", required = false) String type,
                        @RequestParam(value = "xt", required = false) String[] xt){
        System.out.println("进入controller了，第四方!!!!!");
        String v="[{\"DeviceName\":\"悬臂堆料机\",\"deviceCode\":\"TCNY_JEK_DQLJ_2_001\",\"measurePointList\":[{\"measurePointCode\":\"EQCQ_TCNY_NK_SLD121_M1_RUN\",\"measurePointName\":\"堆料臂回转角度\",\"timeStamp\":1615513986828,\"angleVal\":1.0},{\"measurePointCode\":\"EQCQ_TCNY_NK_SLD121_M2_RUN\",\"measurePointName\":\"堆料皮带运行指示\",\"timeStamp\":1615513986828,\"angleVal\":1.0}]},{\"DeviceName\":\"俯仰机构\",\"deviceCode\":\"TCNY_JEK_DQLJ_2_014\",\"measurePointList\":[{\"measurePointCode\":\"EQCQ_TCNY_NK_SLD121_M3_RUN\",\"measurePointName\":\"取料倾角\",\"timeStamp\":1615513986828,\"angleVal\":1.0},{\"measurePointCode\":\"EQCQ_TCNY_NK_SLD122_M1_RUN\",\"measurePointName\":\" 取料回转角\",\"timeStamp\":1615513986828,\"angleVal\":1.0}]},{\"DeviceName\":\"刮板取料机\",\"deviceCode\":\"TCNY_JEK_DQLJ_2_006\",\"measurePointList\":[{\"measurePointCode\":\"EQCQ_TCNY_NK_SLD122_M2_RUN\",\"measurePointName\":\"刮板运行指示\",\"timeStamp\":1615513987828,\"angleVal\":1.0}]}]";
       // String j= JSON.toJSONString(v);
       // System.out.println("j:"+j);
        v="{\"data\":"+v+"}";
        System.out.println("v:"+v);
        httpService.sendMsg("http://localhost:8080/pulldata",v);

    }
}

2.1.4 http的post

1. Preparation of HttpClientBuilder

package com.ljf.spring.boot.demo.http;

import org.apache.http.Header;
import org.apache.http.client.config.RequestConfig;
import org.apache.http.message.BasicHeader;

/**
 * 默认的请求参数
 * @Author LiYangYang
 */
public class HttpClientBuilder {

    private static final Header[] headers = new Header[]{
            new BasicHeader("charset", "utf-8"),
            new BasicHeader("Content-Type", "application/json")
    };
    /**
     * 获得一个默认的请求配置
     * @return RequestConfig
     */
    public static RequestConfig getDefaultRequestConfig(){
        return RequestConfig.custom()
                .setConnectionRequestTimeout(2000)
                .setConnectTimeout(2000)
                .build();
    }

    /**
     * 简单头信息获取
     * @return 请求头数组
     */
    public static Header[] getHeaders(){
        return  headers;
    }
}

2.HttpService

package com.ljf.spring.boot.demo.http;


import com.alibaba.fastjson.JSON;
import org.apache.http.HttpEntity;
import org.apache.http.client.config.RequestConfig;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Service;
import java.io.IOException;

/**
 * 数据推送服务类
 * 推送json格式数据
 */
@Service("localHttpService")
public class HttpService {

    private static final Logger logger = LoggerFactory.getLogger(HttpService.class);
    /**
     * 发送数据到指定的地址
     * @param url 发送地址
     * @param body 发送内容
     */
    public void sendMsg(String url, Object body){
        RequestConfig defaultRequestConfig = RequestConfig.custom()
                .setSocketTimeout(2000)
                .setConnectTimeout(2000)
                .setConnectionRequestTimeout(5000)
                .build();
        CloseableHttpClient httpClient = HttpClients.custom()
                .setDefaultRequestConfig(defaultRequestConfig)
                .build();
        //        CloseableHttpClient httpClient = HttpClients.createDefault();
        HttpPost post = new HttpPost(url);
        post.setHeaders(HttpClientBuilder.getHeaders());
        post.setConfig(HttpClientBuilder.getDefaultRequestConfig());
        HttpEntity entry = new StringEntity(JSON.toJSONString(body) ,"UTF-8");
        post.setEntity(entry);
        CloseableHttpResponse response;
        try {
            response = httpClient.execute(post);
            response.close();
        } catch (IOException e) {
            e.printStackTrace();
            logger.error("发送数据失败, {}", e.getMessage());
        }
    }
    /**
     * 发送数据到指定的地址
     * @param url 发送地址
     * @param body 发送内容
     */
    public void sendMsg(String url, String  body){
        RequestConfig defaultRequestConfig = RequestConfig.custom()
                .setSocketTimeout(2000)
                .setConnectTimeout(2000)
                .setConnectionRequestTimeout(5000)
                .build();
        CloseableHttpClient httpClient = HttpClients.custom()
                .setDefaultRequestConfig(defaultRequestConfig)
                .build();
        //        CloseableHttpClient httpClient = HttpClients.createDefault();
        HttpPost post = new HttpPost(url);
        post.setHeaders(HttpClientBuilder.getHeaders());
        post.setConfig(HttpClientBuilder.getDefaultRequestConfig());
        HttpEntity entry = new StringEntity(body, "UTF-8");
        post.setEntity(entry);
        CloseableHttpResponse response;
        try {
            response = httpClient.execute(post);
            response.close();
        } catch (IOException e) {
            e.printStackTrace();
            logger.error("发送数据失败, {}", e.getMessage());
        }
    }
}

2.1.5 Startup class

package com.ljf.spring.boot.demo;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

/**
 * Hello world!
 *
 */
@SpringBootApplication
public class ClientApp
{
    public static void main( String[] args ){
        SpringApplication.run(ClientApp.class);
        System.out.println("=======================客户启动完成！！！");
    }
}

2.2 Server (pull end)

2.2.1 Project structure

2.2.2 Pom file configuration

<dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.11</version>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>

        <!-- swagger 的jar-->
        <dependency>
            <groupId>io.springfox</groupId>
            <artifactId>springfox-swagger2</artifactId>
            <version>2.9.2</version>
        </dependency>
        <!-- swaggger ui的jar -->
        <dependency>
            <groupId>io.springfox</groupId>
            <artifactId>springfox-swagger-ui</artifactId>
            <version>2.9.2</version>
        </dependency>
        <!-- 阿里fastjson包JSON转换-->
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>fastjson</artifactId>
            <version>1.2.47</version>
        </dependency>
        <dependency>
            <groupId>com.google.code.gson</groupId>
            <artifactId>gson</artifactId>
            <version>2.8.5</version>
        </dependency>
    </dependencies>

2.2.3 Controller reception

package com.ljf.spring.boot.demo.controller;

import com.alibaba.fastjson.JSONArray;
import com.alibaba.fastjson.JSONObject;
import com.fasterxml.jackson.annotation.JsonFormat;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.google.gson.JsonObject;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiImplicitParam;
import io.swagger.annotations.ApiImplicitParams;
import io.swagger.annotations.ApiOperation;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.MissingServletRequestParameterException;
import org.springframework.web.bind.annotation.*;

import java.io.IOException;
import java.util.Map;

/**
 * @ClassName: UserController
 * @Description: TODO
 * @Author: liujianfu
 * @Date: 2021/03/11 17:33:38 
 * @Version: V1.0
 **/
@RestController
@Api(value = "调用用户信息controller")  //用在类上，说明该类的作用。
public class UserController {

    @RequestMapping("/pulldata")
    public void pullData(@RequestBody JSONObject obj) throws IOException {
      // JSONArray msg= JSONObject.parseArray(obj.toString());
       System.out.println("结束到的数据:"+obj);
        Map infoMap = new ObjectMapper().readValue(obj.toString(), Map.class); //json转换成map
        System.out.println("infoMap:"+infoMap);
      //  System.out.println("msg:"+msg);
    }

}

2.2.4 Startup

package com.ljf.spring.boot.demo;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

/**
 * Hello world!
 *
 */
@SpringBootApplication
public class ServerApp
{
    public static void main( String[] args ){
        SpringApplication.run(ServerApp.class);
        System.out.println("=======================服务启动完成！！！");
    }
}

2.3 Simulate sending data

Client access:

The server receives:

springboot pushes messages to the specified interface

A description

2. Operation case

2.1 Client (push side)

2.1.1 Engineering structure

2.1.2 pom file

2.1.3 controller

2.1.4 http的post

1. Preparation of HttpClientBuilder

2.HttpService

2.1.5 Startup class

2.2 Server (pull end)

2.2.1 Project structure

2.2.2 Pom file configuration

2.2.3 Controller reception

2.2.4 Startup

2.3 Simulate sending data

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