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 block e.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 block e.printStackTrace(); } } 代码中就体现了GET和POST请求的区别！