Use java to create sample code for WeChat public platform custom menu

import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import org.json.JSONObject;
public class MenuUtil {
 /**
  * 获得ACCESS_TOKEN
 * @Title: getAccess_token
 * @Description: 获得ACCESS_TOKEN
 * @param @return    设定文件
 * @return String    返回类型
 * @throws
  */
 private static String getAccess_token(){  

  String APPID="";
  String APPSECRET="";

       String url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid="+ APPID + "&secret=" +APPSECRET;
       String accessToken = null;
      try {
             URL urlGet = new URL(url);
             HttpURLConnection http = (HttpURLConnection) urlGet.openConnection();    

             http.setRequestMethod("GET");      //必须是get方式请求    
             http.setRequestProperty("Content-Type","application/x-www-form-urlencoded");    
             http.setDoOutput(true);        
             http.setDoInput(true);
             System.setProperty("sun.net.client.defaultConnectTimeout", "30000");//连接超时30秒
             System.setProperty("sun.net.client.defaultReadTimeout", "30000"); //读取超时30秒
             http.connect();

             InputStream is =http.getInputStream();
             int size =is.available();
             byte[] jsonBytes =new byte[size];
             is.read(jsonBytes);
             String message=new String(jsonBytes,"UTF-8");

             JSONObject demoJson = new JSONObject(message);
             accessToken = demoJson.getString("access_token");

             System.out.println(message);
             } catch (Exception e) {
                 e.printStackTrace();
             }
        return accessToken;
     }

 /**
  * 创建Menu
 * @Title: createMenu
 * @Description: 创建Menu
 * @param @return
 * @param @throws IOException    设定文件
 * @return int    返回类型
 * @throws
  */
    public static String createMenu() {
      String menu = "{\"button\":[{\"type\":\"click\",\"name\":\"MENU01\",\"key\":\"1\"},{\"type\":\"click\",\"name\":\"天气查询\",\"key\":\"西安\"},{\"name\":\"日常工作\",\"sub_button\":[{\"type\":\"click\",\"name\":\"待办工单\",\"key\":\"01_WAITING\"},{\"type\":\"click\",\"name\":\"已办工单\",\"key\":\"02_FINISH\"},{\"type\":\"click\",\"name\":\"我的工单\",\"key\":\"03_MYJOB\"},{\"type\":\"click\",\"name\":\"公告消息箱\",\"key\":\"04_MESSAGEBOX\"},{\"type\":\"click\",\"name\":\"签到\",\"key\":\"05_SIGN\"}]}]}";

        //此处改为自己想要的结构体，替换即可
        String access_token= getAccess_token();
        String action = "https://api.weixin.qq.com/cgi-bin/menu/create?access_token="+access_token;
        try {
           URL url = new URL(action);
           HttpURLConnection http =   (HttpURLConnection) url.openConnection();    

           http.setRequestMethod("POST");        
           http.setRequestProperty("Content-Type","application/x-www-form-urlencoded");    
           http.setDoOutput(true);        
           http.setDoInput(true);
           System.setProperty("sun.net.client.defaultConnectTimeout", "30000");//连接超时30秒
           System.setProperty("sun.net.client.defaultReadTimeout", "30000"); //读取超时30秒
           http.connect();
           OutputStream os= http.getOutputStream();    
           os.write(menu.getBytes("UTF-8"));//传入参数    
           os.flush();
           os.close();

           InputStream is =http.getInputStream();
           int size =is.available();
           byte[] jsonBytes =new byte[size];
           is.read(jsonBytes);
           String message=new String(jsonBytes,"UTF-8");
           return "返回信息"+message;
           } catch (MalformedURLException e) {
               e.printStackTrace();
           } catch (IOException e) {
               e.printStackTrace();
           }    
        return "createMenu 失败";
   }

    /**
     * 删除当前Menu
    * @Title: deleteMenu
    * @Description: 删除当前Menu
    * @param @return    设定文件
    * @return String    返回类型
    * @throws
     */
   public static String deleteMenu()
   {
       String access_token= getAccess_token();
       String action = "https://api.weixin.qq.com/cgi-bin/menu/delete? access_token="+access_token;
       try {
          URL url = new URL(action);
          HttpURLConnection http =   (HttpURLConnection) url.openConnection();    

          http.setRequestMethod("GET");        
          http.setRequestProperty("Content-Type","application/x-www-form-urlencoded");    
          http.setDoOutput(true);        
          http.setDoInput(true);
          System.setProperty("sun.net.client.defaultConnectTimeout", "30000");//连接超时30秒
          System.setProperty("sun.net.client.defaultReadTimeout", "30000"); //读取超时30秒
          http.connect();
          OutputStream os= http.getOutputStream();    
          os.flush();
          os.close();

          InputStream is =http.getInputStream();
          int size =is.available();
          byte[] jsonBytes =new byte[size];
          is.read(jsonBytes);
          String message=new String(jsonBytes,"UTF-8");
          return "deleteMenu返回信息:"+message;
          } catch (MalformedURLException e) {
              e.printStackTrace();
          } catch (IOException e) {
              e.printStackTrace();
          }
       return "deleteMenu 失败";   
   }
 public static void main(String[] args) {

  System.out.println(createMenu());
 }
}