1.我們通過Java來向某個WebHook地址傳送POST請求,並攜帶我們需要傳送的訊息
2.程式碼示例
搭建Maven專案，在pom.xml檔案裡引入httpclient依賴

1 <dependency>
2     <groupId>org.apache.httpcomponents</groupId>
3     <artifactId>httpclient</artifactId>
4     <version>4.5.3</version>
5 </dependency>

以下是java程式碼的實現部分

 1 package com.demo;
 2 import org.apache.http.HttpResponse;
 3 import org.apache.http.HttpStatus;
 4 import org.apache.http.client.HttpClient;
 5 import org.apache.http.client.methods.HttpPost;
 6 import org.apache.http.entity.StringEntity;
 7 import org.apache.http.impl.client.HttpClients;
 8 import
 
 org.apache.http.util.EntityUtils;
 9 
10 public class ChatbotSend {
11     //企業微信群機器人的WebHook地址xxx
12     public static String WEBHOOK_TOKEN = "xxx";
13     
14     public static void main(String args[]) throws Exception {
15         HttpClient httpclient = HttpClients.createDefault();
16         HttpPost httppost = new
 
 HttpPost(WEBHOOK_TOKEN);
17         httppost.addHeader("Content-Type", "application/json; charset=utf-8");
18         //構建一個json格式字串textMsg，其內容是接收方需要的引數和訊息內容 
19         String textMsg = "{\"msgtype\":\"text\",\"text\":{\"content\":\"你好，我是機器人\"},\"at\":{\"atMobiles\":[\"xxx\"],\"isAtAll\":false}}";
20         StringEntity se = new StringEntity(textMsg, "utf-8");
21         httppost.setEntity(se);
22         HttpResponse response = httpclient.execute(httppost);
23         if (response.getStatusLine().getStatusCode() == HttpStatus.SC_OK) {
24             String result = EntityUtils.toString(response.getEntity(), "utf-8");
25             System.out.println(result);
26         }
27     }
28 }

執行main方法即可傳送訊息