微信公众号客服消息提醒

微信客服消息提醒：
    public static void Test(String openid) throws Exception{   
        String token = getWeiXinAccessToken.getToken();
        String strJson = "{\"touser\" :\""+openid+"\",";
        strJson += "\"msgtype\":\"text\",";
        strJson += "\"text\":{";
        strJson += "\"content\":\"这里写你要提示的信息！\"";
        strJson += "}}";
        String url = "https://api.weixin.qq.com/cgi-bin/message/custom/send?&body=0&access_token=" + token;
        post(url, strJson);
    }

public static void post(String url, String json){
        DefaultHttpClient client = new DefaultHttpClient();
        HttpPost post = new HttpPost(url);
        try{
            StringEntity s = new StringEntity(json.toString(),"UTF-8");
            //s.setContentEncoding("UTF-8");
            s.setContentType("application/json");
            post.setEntity(s);
            HttpResponse res = client.execute(post);
            if (res.getStatusLine().getStatusCode() == HttpStatus.SC_OK) {
                HttpEntity entity = res.getEntity();
                System.out.println(EntityUtils.toString(entity, "utf-8"));
            }
        }catch (Exception e) {
            throw new RuntimeException(e);
        }
    }

　public class getWeiXinAccessToken {
   　　 public static  String getToken() {  
           　　String getResponse="";
           　　String appid= "公众号AppID";
           　　String secret= "公众号secret";
        　　   try{  
                  　　String url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid="+appid+"&secret="+secret;  
                       HttpClient httpClient = new HttpClient();  
            　　      GetMethod getMethod = new GetMethod(url);  
            　　　   int execute = httpClient.executeMethod(getMethod);  
            　　　   System.out.println("execute:"+execute);  
            　　      getResponse = getMethod.getResponseBodyAsString(); 
       　　   } catch (IOException e){  
            　　　　e.printStackTrace();  
       　　   }  
        　　  System.out.println(getResponse);  
        　　  JSONObject json=JSONObject.fromObject(getResponse);      
       　　   return json.getString("access_token");  
     　 }  
    
    }　

原文地址：https://www.cnblogs.com/3b2414/p/9328351.html