//這里的WeixinUtil.getAccess_token()方法，放在下面。
String aToken = WeixinUtil.getAccess_token("https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid="+你的appId+"&secret="+你的appSecret+"");
System.out.println("這里是aToken"+aToken);
String[] tokenOne = aToken.split(":");
String[] token = tokenOne[1].split(",");
char [] stringArr = token[0].toCharArray();
String token3 = "" ;
for(int i=1;i<stringArr.length-1;i++){
  String token2 = String.valueOf(stringArr[i]);
  token3 += token2;
}
System.out.println("這里是ACCESS_TOKEN"+token3);

//這里就是一個微信請求，首先用String放著
String tokenurl = "https://api.weixin.qq.com/cgi-bin/message/custom/send?access_token="+token3;
//首先確定是發(fā)送文字消息，還是圖文消息，這里是手寫的json數(shù)據(jù).
//發(fā)送文字消息，無連接
String json = "{\"touser\":\"這里是Openid\",\"msgtype\":\"text\",\"text\":{\"content\":\"Hello World\"}}";
//圖文消息，有鏈接連接
String jsonpic = "{\"touser\":\""+這里是Openid+"\","+ "\"msgtype\":\"news\",\"news\":{\"articles\":["+ "{\"title\":\"HelloWorld\",\"url\":\"要跳轉的鏈接"}]}}";
System.out.println("這里是json"+jsonpic);
//請求方法，然后放回OK 成功，否則錯誤。這里這個請求方法在下邊
String xmlStr = HttpKit.post(tokenurl,jsonpic);
System.out.println("這里是xmlStr"+xmlStr);

package com.uitrs.weixin;
import java.net.HttpURLConnection;
import java.net.URL;
public class WeixinUtil {
  //傳入URL
    public static String getAccess_token(String url) {
      String accessToken = null;
      try {
        URL urlGet = new URL(url);
        HttpURLConnection http = (HttpURLConnection) urlGet
            .openConnection();
        http.setRequestMethod("GET"); // 必須是get方式請求
        http.setRequestProperty("Content-Type",
            "application/x-www-form-urlencoded");
        http.setDoOutput(true);
        http.setDoInput(true);
        System.setProperty("sun.net.client.defaultConnectTimeout", "30000");// 連接超時30秒
        System.setProperty("sun.net.client.defaultReadTimeout", "30000"); // 讀取超時30秒
        http.connect();
        InputStream is = http.getInputStream();
        int size = is.available();
        byte[] jsonBytes = new byte[size];
        is.read(jsonBytes);
        accessToken = new String(jsonBytes, "UTF-8");
        System.out.println(accessToken);
        is.close();
      } catch (Exception e) {
        e.printStackTrace();
      }
      return accessToken;
    }
}

import com.jfinal.kit.HttpKit;