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Java程式碼實現向企業微信使用者傳送訊息

公司內部交流使用的企業微信,最近專案中要實現向員工傳送企業微信通知,於是看了下企業微信的api,簡單實現了下:

1. 其實就是一個HTTP請求,如下

請求方式:POST(HTTPS
請求地址: https://qyapi.weixin.qq.com/cgi-bin/message/send?access_token=ACCESS_TOKEN

文字訊息請求引數例項如下

  1. {
        "touser" : "UserID1|UserID2|UserID3",//使用者的ID,
        "toparty" : "PartyID1|PartyID2",//部門id
        "totag" : "TagID1 | TagID2",//標籤id
        "msgtype" : "text",//訊息型別
        "agentid" : 1,//應用的ID,比如時公告還是通知什麼一類的,可參考企業微信開發者文件
        "text" : { //型別和內容
            "content" : "你的快遞已到,請攜帶工卡前往郵件中心領取。\n出發前可檢視<a                 
            href=\"http://work.weixin.qq.com\">郵件中心視訊實況</a>,聰明避開排隊。"
        },
        "safe":0//是否保密資訊
    }
    
    //其中 touser、toparty、totag不能同時為空

其他如圖片型別,語音則可以參考開發者文件中的型別對應設定:企業微信-開發者文件

pom依賴

<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. 獲取access_token

用到的UrlData類和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;
    }

}

請求方式:GET(HTTPS
請求URL:https://qyapi.weixin.qq.com/cgi-bin/gettoken?corpid=ID&corpsecret=SECRECT
注:此處標註大寫的單詞ID和SECRET,為需要替換的變數,根據實際獲取值更新。

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請求,根據上一步得到的token,傳送post請求

應用支援推送文字、圖片、視訊、檔案、圖文等型別。

請求方式:POST(HTTPS
請求地址: https://qyapi.weixin.qq.com/cgi-bin/message/send?access_token=ACCESS_TOKEN

引數說明:

引數 是否必須 說明
access_token 呼叫介面憑證

請求body就是文章開頭的json資料(text型別)

程式碼如下:

/**
     * 建立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請求
     */
    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. 呼叫方法請求傳送

private CloseableHttpClient httpClient;
    private HttpPost httpPost;//用於提交登陸資料
    private HttpGet httpGet;//用於獲得登入後的頁面

    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("獲取到的token======>" + token);
        System.out.println("請求資料======>" + postData);
        System.out.println("傳送微信的響應資料======>" + response);
    }

其實企業微信開發者文件就是給我們提供了介面,我們要做的只是封裝好我們的請求json,請求對應的介面就可以了。