loginservlet.java

Hibernate开发及整合应用大全 蔡雪焘编著 本书用典型的示例剖析Hibernate开发中的重点和难点

package login;
import java.io.IOException;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 * @author Administrator
 * 
 * TODO 要更改此生成的类型注释的模板，请转至 窗口 － 首选项 － Java － 代码样式 － 代码模板
 */
public class LoginServlet extends HttpServlet {
    public LoginServlet() {			//构造方法
        super();
    }
    public void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        if(isValidUser(request))				//如果登录成功
            System.out.println("login success！");
        else									//如果登录失败
            System.out.println("login failed！");
    }

    public boolean isValidUser(HttpServletRequest request) {//验证用户名和密码
        String username = request.getParameter("username");
        String password = request.getParameter("password");
        if (username == null || password == null || !username.equals("tomclus")
                || !password.equals("abcd")) {
            return false;
        } else {
            return true;
        }
    }

}