一、核心代码
HTTP GET 核心代码：
(1)String value = URLEncoder.encode(String value,"UTF-8");
(2)String path = "http://../path key="+value;
(3)URL url = new URL(path);//此处的URL需要进行URL编码；
(4)HttpURLConnection con = (HttpURLConnection)url.openConnection();
(5)con.setRequestMethod("GET");
(6)con.setDoOutput(true);
(7)OutputStream out = con.getOutputStream();
(8)out.write(byte[]buf);
(9)int code = con.getResponseCode();
HTTP POST 核心代码：
(1)String value = URLEncoder.encode(String value,"UTF-8");
(2)byte[]buf = ("key="+value).getBytes("UTF-8");
(3)String path = "http://../path";
(4)URL url = new URL(path);//此处的URL需要进行URL编码；
(5)HttpURLConnection con = (HttpURLConnection)url.openConnection();
(6)con.setRequestMethod("POST");
(7)con.setDoOutput(true);
(8)OutputStream out = con.getOutputStream();
(9)out.write(byte[]buf);
(10)int code = con.getResponseCode();

三、服务器端代码