Java代码实现向企业微信用户发送消息

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1. 其实就是一个HTTP请求，如下 请求方式：POST（HTTPS） 请求地址： https://qyapi.weixin.qq.com/cgi-bin/message/send?access_token=ACCESS_TOKEN   文本消息请求参数实例如下   {     "touser" : "UserID1|UserID2|UserID3",//用户的ID，     "toparty" : "PartyID1|PartyID2",//部门id     "totag" : "TagID1 | TagID2",//标签id     "msgtype" : "text",//消息类型     "agentid" : 1,//应用的ID，比如时公告还是通知什么一类的，可参考企业微信开发者文档     "text" : { //类型和内容         "content" : "你的快递已到，请携带工卡前往邮件中心领取。\n出发前可查看<a                         href=\"http://work.weixin.qq.com\">邮件中心视频实况</a>，聪明避开排队。"     },     "safe":0//是否保密信息 }    //其中 touser、toparty、totag不能同时为空 其他如图片类型，语音则可以参考开发者文档中的类型对应设置：企业微信-开发者文档   pom依赖 <dependency>     <groupId>com.google.code.gson</groupId>     <artifactId>gson</artifactId>     <version>2.8.2</version> </dependency> <dependency>     <groupId>org.apache.httpcomponents</groupId>     <artifactId>httpclient</artifactId>     <version>4.5.2</version> </dependency>    <dependency>     <groupId>org.apache.httpcomponents</groupId>     <artifactId>httpcore</artifactId>     <version>4.4.5</version> </dependency>      2. 获取access_token 用到的UrlData类和WeChatData         import org.springframework.stereotype.Component;    @Component public class UrlData {     String corpId;     String corpSecret;     String getTokenUrl;     String sendMessageUrl;        public String getCorpId() {         return corpId;     }        public void setCorpId(String corpId) {         this.corpId = corpId;     }        public String getCorpSecret() {         return corpSecret;     }        public void setCorpSecret(String corpSecret) {         this.corpSecret = corpSecret;     }        public void setGetTokenUrl(String corpid, String corpsecret) {         this.getTokenUrl = "https://qyapi.weixin.qq.com/cgi-bin/gettoken?corpid=" + corpid + "&corpsecret=" + corpsecret;     }        public String getGetTokenUrl() {         return getTokenUrl;     }        public String getSendMessageUrl() {         sendMessageUrl = "https://qyapi.weixin.qq.com/cgi-bin/message/send?access_token=";         return sendMessageUrl;     }    }      package com.lls.it.ldapapi.entity;    import org.springframework.stereotype.Component;    @Component public class WeChatData {     String touser;     String msgtype;     int agentid;     Object text;        public Object getText() {         return text;     }        public void setText(Object text) {         this.text = text;     }        public String getMsgtype() {         return msgtype;     }        public void setMsgtype(String msgtype) {         this.msgtype = msgtype;     }        public int getAgentid() {         return agentid;     }        public void setAgentid(int agentid) {         this.agentid = agentid;     }        public String getTouser() {         return touser;     }        public void setTouser(String touser) {         this.touser = touser;     }    } 请求方式：GET（HTTPS） 请求URL：https://qyapi.weixin.qq.com/cgi-bin/gettoken?corpid=ID&corpsecret=SECRECT 注：此处标注大写的单词ID和SECRET，为需要替换的变量，根据实际获取值更新。   public String getToken(String corpId, String corpSecret) throws IOException {         SendMsgService sw = new SendMsgService();         UrlData uData = new UrlData();         uData.setGetTokenUrl(corpId, corpSecret);         String resp = sw.toAuth(uData.getGetTokenUrl());//就是按照GET方式拼接了字符串得到url         Map<String, Object> map = gson.fromJson(resp,                 new TypeToken<Map<String, Object>>() {                 }.getType());         System.out.println(map);         return map.get("access_token").toString();     }    protected 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;     } 3. POST请求，根据上一步得到的token，发送post请求 应用支持推送文本、图片、视频、文件、图文等类型。   请求方式：POST（HTTPS） 请求地址： https://qyapi.weixin.qq.com/cgi-bin/message/send?access_token=ACCESS_TOKEN   参数说明：   参数  是否必须    说明 access_token    是   调用接口凭证 请求body就是文章开头的json数据（text类型）   代码如下：   /**      * 创建POST BODY      */     private String createPostData(String touser, String msgtype, int agent_id, String contentKey, String contentValue) {         WeChatData weChatData = new WeChatData();         weChatData.setTouser(touser);         weChatData.setAgentid(agent_id);         weChatData.setMsgtype(msgtype);         Map<Object, Object> content = new HashMap<Object, Object>();         content.put(contentKey, contentValue + "\n--------\n" + df.format(new Date()));         weChatData.setText(content);         System.out.println(gson.toJson(weChatData));         return gson.toJson(weChatData);     }        /**      * POST请求      */     private 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;     } 4. 调用方法请求发送 private CloseableHttpClient httpClient;     private HttpPost httpPost;//用于提交登陆数据     private HttpGet httpGet;//用于获得登录后的页面        public static final String CONTENT_TYPE = "Content-Type";     SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");//     private static Gson gson = new Gson();    public void sendTextMesg(String toUser, String contentValue) throws IOException {         String token = getToken("Your_corpId", "Your_corpSecret");         String postData = createPostData(toUser, "text", 1000002, "content", contentValue);         String response = post("utf-8", SendMsgService.CONTENT_TYPE, (new UrlData()).getSendMessageUrl(), 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);     }   版权声明：本文为CSDN博主「jay_boolean」的原创文章，遵循CC 4.0 BY-SA版权协议，转载请附上原文出处链接及本声明。 原文链接：https://blog.csdn.net/qq_22798455/article/details/81216589