第一个javaweb程序，doget和dopost的区别

public class  extends HttpServlet {

	private static final long serialVersionUID = 1L;

	
	// doGet方法可以通过地址栏直接访问 不安全 doPost方法只能通过表单来访问
	
	protected void doGet(HttpServletRequest req, HttpServletResponse resp)
			throws ServletException, IOException {
		System.out.println("doget");
	}

	
	protected void doPost(HttpServletRequest req, HttpServletResponse resp)
			throws ServletException, IOException {
		System.out.println("doPost");
		// 使用request对象来取页面上的对象
		// 转码必须放在第一句
		req.setCharacterEncoding("UTF-8");
		String username = req.getParameter("username");
		String upassword = req.getParameter("upassword");
		System.out.println(username);
		System.out.println(upassword);
	}

}