HttpUrlConnection用法之获取某页面内容

/*连接http://192.168.1.66:8080/regSite，并向其传递参数*/
try{
URL url = new URL("http://192.168.1.66:8080/regSite");//Will be change to www.minma.com
HttpURLConnection urlcon = (HttpURLConnection) url.openConnection();
urlcon.setDoOutput(true);
urlcon.setRequestMethod("POST");
OutputStream buf = new BufferedOutputStream(urlcon.getOutputStream());
OutputStreamWriter out = new OutputStreamWriter(buf,"UTF-8");
/*向regSite传递5个参数*/
out.write("domain="+domain+"&tradeType="+tradeType+"&catalog="+catalog+"&pnum="+pnum+"&version=1.0");
out.flush();
out.close();

InputStream in = urlcon.getInputStream();
in.close();
/*读取访问页面内容*/
BufferedReader br=new java.io.BufferedReader(new InputStreamReader(in));
System.out.println("==================Beging====================");
String s=null;
while((s = br.readLine()) != null){
result+=s;
  in.close();
System.out.println(result);
System.out.println("===================End======================");
}
}catch(Exception e){
   System.out.println("Network not connect.");
   System.out.println(e.getStackTrace());
}