java发送企业微信群

一、修改pom.xml

<dependency>
   <groupId>com.squareup.okhttp3</groupId>
   <artifactId>okhttp</artifactId>
   <version>3.14.9</version>
</dependency>
<dependency>
   <groupId>commons-codec</groupId>
   <artifactId>commons-codec</artifactId>
   <version>1.10</version>
</dependency>

 二、java代码

package com.sdmktech.mep.energy.monitor.utils;

import com.alibaba.fastjson.JSONObject;
import com.google.common.collect.Lists;
import lombok.extern.slf4j.Slf4j;
import okhttp3.*;

import java.io.IOException;
import java.net.InetSocketAddress;
import java.net.Proxy;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.concurrent.TimeUnit;

@Slf4j
public class WeComPushUtil {


	private static final String SECRET = "96b1f94b-eadc-441c-b8cb-87a93d7a4904hlw";

	/**
	 * 配置企业微信的webhook
	 * https://qyapi.weixin.qq.com/cgi-bin/webhook/send?key=96b1f94b-eadc-441c-b8cb-87a93d7a4904hlw
	 */
	private static final String WEBHOOK = "https://qyapi.weixin.qq.com/cgi-bin/webhook/send?key=";

	private static final String dingTemplate = "**告警名称** : %s\n\n**告警级别** : %s\n\n**设备信息** : %s\n\n" +
			"**告警内容** : %s\n\n**告警时间** : %s\n\n";
	private static SimpleDateFormat format1 = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");

	public static void main(String[] args) {
		sendGroup(SECRET,"火灾","S2","铁塔","大火熊熊燃气啊");
	}

	/**
	 *
	 * @param token   企业微信机器人token
	 * @param warningName   告警名称
	 * @param level 告警级别
	 * @param deviceInfo  设备信息
	 * @param content  告警内容
	 */
	public static void sendGroup(String token,String warningName,String level,String deviceInfo,String content){
		try {
			JSONObject reqBody = getReqBody(String.format(dingTemplate, warningName, level, deviceInfo, content, format1.format(new Date())));
			callWeChatBot(reqBody.toString(),token);
		}catch (Exception e){

		}
	}

	/**
	 * 发送MarKDown消息
	 *
	 * @param msg 需要发送的消息
	 * @return
	 * @throws Exception
	 */
	public static JSONObject getReqBody(String msg) throws Exception {
		JSONObject markdown = new JSONObject();
		markdown.put("content", msg);
		JSONObject reqBody = new JSONObject();
		reqBody.put("msgtype", "markdown");
		reqBody.put("markdown", markdown);
		reqBody.put("safe", 0);
		return reqBody;

	}
	/**
	 * 调用群机器人
	 *
	 * @param reqBody 接口请求参数
	 * @throws Exception 可能有IO异常
	 */
	public static String callWeChatBot(String reqBody,String botUrl) throws Exception {
		log.info("请求参数：" + reqBody);

		// 构造RequestBody对象，用来携带要提交的数据；需要指定MediaType，用于描述请求/响应 body 的内容类型
		MediaType contentType = MediaType.parse("application/json; charset=utf-8");
		RequestBody body = RequestBody.create(contentType, reqBody);

		// 调用群机器人
		String respMsg = okHttp(body, WEBHOOK+botUrl);

		if ("0".equals(respMsg.substring(11, 12))) {
			log.info("向群发送消息成功！");
		} else {
			log.info("请求失败！");
			// 发送错误信息到群
			sendTextMsg("群机器人推送消息失败，错误信息：\n" + respMsg);
		}
		return respMsg;
	}

	/**
	 * @param body 携带需要提交的数据
	 * @param url  请求地址
	 * @return
	 * @throws Exception
	 */
	public static String okHttp(RequestBody body, String url) throws Exception {
		// 构造和配置OkHttpClient
		OkHttpClient client;
		client = new OkHttpClient.Builder().connectTimeout(10, TimeUnit.SECONDS) // 设置连接超时时间
				.readTimeout(20, TimeUnit.SECONDS) // 设置读取超时时间
				.build();

		// 构造Request对象
		Request request = new Request.Builder().url(url).post(body).addHeader("cache-control", "no-cache") // 响应消息不缓存
				.build();

		// 构建Call对象，通过Call对象的execute()方法提交异步请求
		Response response = null;
		try {
			response = client.newCall(request).execute();
		} catch (IOException e) {
			e.printStackTrace();
		}

		// 请求结果处理
		byte[] datas = response.body().bytes();
		String respMsg = new String(datas);
		log.info("返回结果：" + respMsg);

		return respMsg;
	}
	/**
	 * 发送文字消息
	 *
	 * @param msg 需要发送的消息
	 * @return
	 * @throws Exception
	 */
	public static String sendTextMsg(String msg) throws Exception {
		JSONObject text = new JSONObject();
		text.put("content", msg);
		JSONObject reqBody = new JSONObject();
		reqBody.put("msgtype", "text");
		reqBody.put("text", text);
		reqBody.put("safe", 0);

		return callWeChatBot(reqBody.toString(),SECRET);
	}

}