java如何向一个远程的url发出post请求

URL url = new URL("http://192.168.22.211:8080/userLogin.do");

URLConnection connection = url.openConnection();

connection.setDoOutput(true);

OutputStreamWriter out = new OutputStreamWriter(connection.getOutputStream(), "8859_1");

out.write("cename=123&cpwd=123456"); //这里组织提交信息

out.flush();

out.close();

//获取返回数据
BufferedReader in = new BufferedReader(new InputStreamReader(connection.getInputStream()));

String line = null;

StringBuffer content= new StringBuffer();

while((line = in.readLine()) != null)
{
   //line为返回值，这就可以判断是否成功、
    content.append(line);
}

in.close() ;