一、可能需要的依赖

之前导依赖的时候没有特别标记，现在分不清哪个是哪个了，应该就在这些里面

        <dependency><groupId>org.apache.httpcomponents</groupId><artifactId>httpclient</artifactId><version>4.3.5</version></dependency><!-- https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-databind --><dependency><groupId>com.fasterxml.jackson.core</groupId><artifactId>jackson-databind</artifactId><version>2.9.3</version></dependency><!-- https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-core --><dependency><groupId>com.fasterxml.jackson.core</groupId><artifactId>jackson-core</artifactId><version>2.9.3</version></dependency><!-- https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-annotations --><dependency><groupId>com.fasterxml.jackson.core</groupId><artifactId>jackson-annotations</artifactId><version>2.9.3</version></dependency><dependency><groupId>com.alibaba</groupId><artifactId>fastjson</artifactId><version>1.1.23</version></dependency><dependency><groupId>commons-lang</groupId><artifactId>commons-lang</artifactId><version>2.6</version></dependency>

二、必须的信息

需要企业的ID号和密钥号，登录企业微信管理网页进行查看

还需要企业的ID号

三、效果展示

输如需要发送的消息

获取返回值

企业微信收到消息

四、具体代码

如果觉得不错就点个赞吧！！

1、这是主要实现的类

package TEST2;import java.io.IOException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.HashMap;
import java.util.Map;import org.apache.http.HttpEntity;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpGet;
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.apache.http.util.EntityUtils;
import org.springframework.stereotype.Service;import com.google.gson.Gson;
import com.google.gson.reflect.TypeToken;@Service
public class SendMsg {private static CloseableHttpClient httpClient;private static HttpPost httpPost;//用于提交登陆数据private static HttpGet httpGet;//用于获得登录后的页面//CorpID  企业ID//AGENTID 应用的ID//Secret 应用的ID对应的密钥public static final String CONTENT_TYPE = "Content-Type";public static final Integer AGENTID = 1000002;public static final String CORPID = "wwf38c66706451ab6d";public static final String CORPSECRET = "S1-z2PjSX0BSUn8U9rXjWqoo6Ix56lqaH5JD0gAf63Q";static SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");//private static Gson gson = new Gson();/**** @param toUser 用户的ID 格式"UserID1|UserID2|UserID3"* @param contentValue 推送消息内容* @throws IOException*/public static void sendTextMesg(String toUser, String contentValue) throws IOException {String token = getToken(CORPID,CORPSECRET);String postData = createPostData(toUser, "text",AGENTID, "content", contentValue);String response = post("utf-8", CONTENT_TYPE,"https://qyapi.weixin.qq.com/cgi-bin/message/send?access_token=", postData, token);System.out.println("获取到的token======>" + token);System.out.println("请求数据======>" + postData);System.out.println("发送微信的响应数据======>" + response);}public static String getToken(String corpId, String corpSecret) throws IOException {String resp = toAuth( "https://qyapi.weixin.qq.com/cgi-bin/gettoken?corpid=" + corpId + "&corpsecret=" + corpSecret);//拼接字符串得到urlMap<String, Object> map = gson.fromJson(resp,new TypeToken<Map<String, Object>>() {}.getType());System.out.println(map);return map.get("access_token").toString();}protected static String toAuth(String Get_Token_Url) throws IOException {httpClient = HttpClients.createDefault();httpGet = new HttpGet(Get_Token_Url);CloseableHttpResponse response = httpClient.execute(httpGet);System.out.println(response.toString());String resp;try {HttpEntity entity = response.getEntity();System.out.println(response.getAllHeaders());resp = EntityUtils.toString(entity, "utf-8");EntityUtils.consume(entity);} finally {response.close();}return resp;}private static String createPostData(String touser, String msgtype, int agent_id, String contentKey, String contentValue) {Map<String,Object> weChatData = new HashMap<>();weChatData.put("touser",touser);weChatData.put("agentid",agent_id);weChatData.put("msgtype",msgtype);Map<Object, Object> content = new HashMap<Object, Object>();content.put(contentKey, contentValue + "\n--------\n" + df.format(new Date()));weChatData.put("text",content);System.out.println(gson.toJson(weChatData));return gson.toJson(weChatData);}private static String post(String charset, String contentType, String url, String data, String token) throws IOException {CloseableHttpClient httpclient = HttpClients.createDefault();httpPost = new HttpPost(url + token);httpPost.setHeader(CONTENT_TYPE, contentType);httpPost.setEntity(new StringEntity(data, charset));CloseableHttpResponse response = httpclient.execute(httpPost);String resp;try {HttpEntity entity = response.getEntity();resp = EntityUtils.toString(entity, charset);EntityUtils.consume(entity);} finally {response.close();}return resp;}
}

2、执行的类

package TEST2;import java.io.IOException;
import java.util.Scanner;public class Test {public static void main(String[] args) throws IOException {String user = "xxxx";Scanner scan = new Scanner(System.in);String content = scan.nextLine();
//        String content = "你好呀~";SendMsg. sendTextMesg(user, content);}
}

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【Java开发】Java实现企业微信消息推送，通过应用发送

企业微信机器人发送消息

一、可能需要的依赖

二、必须的信息

三、效果展示

四、具体代码

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