学习Java web的时候总是背GET和POST的区别，根本不知道GET和POST有什么区别！

百度一下它们的区别就有答案！但是不能理解！

POST的代码：

public void run() {String path = "http://10.31.2.6:8080/06_Server/servlet/login";try {URL url = new URL(path);HttpURLConnection conn = (HttpURLConnection) url.openConnection();conn.setRequestMethod("POST");conn.setReadTimeout(5000);conn.setConnectTimeout(5000);/*** 设置POST请求特殊的东西* name="+ URLEncoder.encode(name) +"&pass=" + pass*///拼接出要提交的数据的字符串String data = "name=" + URLEncoder.encode(name) + "&pass=" + pass;//添加post请求的两行属性conn.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");conn.setRequestProperty("Content-Length", data.length() + "");//将协议体提交给服务器//打开输出流conn.setDoOutput(true);//拿到输出流OutputStream os = conn.getOutputStream();//放到输出流中，提交到服务器os.write(data.getBytes());conn.connect();if(conn.getResponseCode() == 200) {InputStream in = conn.getInputStream();//将输入流变成字符串String result = Utils.fromStream2String(in);    Message msg = handler.obtainMessage();msg.obj = result;handler.sendMessage(msg);                        } else {System.out.println("系统出错");}} catch (Exception e) {// TODO Auto-generated catch blocke.printStackTrace();}}

GET的代码：

public void run() {String path = "http://10.31.2.6:8080/06_Server/servlet/login?name="+ URLEncoder.encode(name) +"&pass=" + pass;try {URL url = new URL(path);HttpURLConnection conn = (HttpURLConnection) url.openConnection();conn.setRequestMethod("GET");conn.setReadTimeout(5000);conn.setConnectTimeout(5000);conn.connect();if(conn.getResponseCode() == 200) {InputStream in = conn.getInputStream();//将输入流变成字符串String result = Utils.fromStream2String(in);    Message msg = handler.obtainMessage();msg.obj = result;handler.sendMessage(msg);                        } else {System.out.println("系统出错");}} catch (Exception e) {// TODO Auto-generated catch blocke.printStackTrace();}}

代码中就体现了GET和POST请求的区别！