1. 向微信公眾號(hào)推算消息的代碼很簡單,如下所示.但必須先獲取以下內(nèi)容

(1)公眾號(hào)的APPID,APPSECRET,

(2)消息模板templateId.

(3)接收消息的用戶openid, 對(duì)于不同的公眾號(hào), 同一個(gè)用戶的openid不一樣.

 public static  final String APPID="";        //公眾號(hào)APPID
 public static  final String APPSECRET="";    //公眾號(hào)APPSECRET
 public static  final String templateId="";   //模板ID


public  void push(String first,String keyword1,String keyword2,String keyword3,String UserOpenId) {

        WxMpInMemoryConfigStorage wxStorage = new WxMpInMemoryConfigStorage();
        wxStorage.setAppId(APPID);
        wxStorage.setSecret(APPSECRET);
        WxMpService wxMpService = new WxMpServiceImpl();
        wxMpService.setWxMpConfigStorage(wxStorage);
  
        //數(shù)據(jù)
        List<WxMpTemplateData> data = Arrays.asList(
                new WxMpTemplateData("first", first),
                new WxMpTemplateData("keyword1", keyword1),
                new WxMpTemplateData("keyword2", keyword2),
                new WxMpTemplateData("keyword3", keyword3)
        );

        WxMpTemplateMessage templateMessage = WxMpTemplateMessage.builder()
                .toUser(UserOpenId)//要推送的用戶openid
                .data(data) //數(shù)據(jù)
                .templateId(templateId)//模版id
                .build();

        try {
            String msg = wxMpService.getTemplateMsgService().sendTemplateMsg(templateMessage);
            System.out.println("推送成功：" + msg);
        } catch (Exception e) {
            System.out.println("推送失敗：" + e.getMessage());
            e.printStackTrace();
        }

    }

所需依賴

<dependency>
   <groupId>com.github.binarywang</groupId>
   <artifactId>weixin-java-mp</artifactId>
   <version>3.3.0</version>
</dependency>

2. 公眾號(hào)的APPID,APPSECRET,和消息模板templateId. 直接在公眾號(hào)后臺(tái)就能獲得,無需寫代碼.

3. 接收消息的用戶openid, 對(duì)于不同的公眾號(hào), 同一個(gè)用戶的openid不一樣. 所以得通過邦定獲取.具體方法詳見下文