java通过http协议模拟post提交

代码：     URL url=new URL("");

     OutputStreamWriter outStrm =null;

     URLConnection rulConnection = url.openConnection();

     HttpURLConnection httpUrlConnection = (HttpURLConnection) rulConnection;

       httpUrlConnection.setDoOutput(true);

       httpUrlConnection.setDoInput(true);

       httpUrlConnection.setUseCaches(false);

       httpUrlConnection.setRequestMethod("POST");

       httpUrlConnection.setRequestProperty("accept", "*/*");

outStrm= new OutputStreamWriter(httpUrlConnection

         .getOutputStream()); //提交数据

       outStrm.flush();

       outStrm.write(param);

       outStrm.close();

       InputStream inStrm = httpUrlConnection.getInputStream();//从服务器返回的数据

BufferedReader br = new BufferedReader(new InputStreamReader(inStrm,"UTF-8"));