private void doGet(){

　　URL httpurl = new URl(url);

　　HttpURLConnection  conn = (HttpURLConnection)httpUrl.openConnection();

　　conn.setRequestMethod("GET");

　　conn.setReadTimeout(5000);

　　BufferedReader reader = new BuffedReader(new InputStreamReader(conn.getInputStream));

　　String str;

　　StringBuffer sb = new StringBuffer();

　　while((str = reader.readLine()) != null){

   　　sb.append(str);

　　}

}

private void doPost(){

　　URL httpUrl = new URL(url);

　　HttpURLconnection conn = (HttpURLConnection)  httpUrl.openConnection();

　　conn.setRequestMethod("POST");

　　conn.setReadTimeout(5000);

　　OutputStream out = conn.getOutputStream();

　　String content = "name"+name+"age"+age;
　　out.write(content.getBytes());

　　BufferedReader reader = new BufferedReader(new InputStreamReader(conn.getInputStream()));

　　StringBuffer sb = new StrintgBuffer();

　　String str;

　　while((str = reader.readLine())!=null){

  　　　　sb.append(str);

　　}

}

String name = request.getParameter("name");

response.setContentType("text/html;charset=utf-8");

PrintWriter out = response.getWriter();

name = new String(name.getBytes("iso-8859-1"),"utf-8");

get方式：URLEncoder.encode(name,"utf-8");
post方式：不会产生乱码，因为android系统默认使用utf-8编码

Properties property = System.getProperties();

property.list(System.out);