使用HttpURLConnection进行get请求，返回状态码403，网上设置代理的方式均已试过无效，求解

Question

public static String sendGet(String url){
        String message = null;
        try {
          URL urlGet = new URL(url);
          HttpURLConnection http = (HttpURLConnection) urlGet.openConnection();    
          //必须是get方式请求    
          http.setRequestMethod("GET");
          http.setRequestProperty("Content-Type","application/x-www-form-urlencoded");  
          http.setRequestProperty("Cookie", "dsdsd");
          http.setRequestProperty("Referer", url);
          http.setRequestProperty("User-Agent", "Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; CIBA)");
          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);
          message=new String(jsonBytes,"UTF-8");
          System.out.println("getMessage = "+message);
       } catch (Exception e) {
          e.printStackTrace();
       }
        return message;
    }

Answer 1

没下文了啊，