MyJavawebProject/src/com/servlet/MgrLoginServlet.java

微信扫码关注公众号，代码整理好后第一时间通知你。

package com.servlet;
 
import java.io.IOException;
//import java.io.PrintWriter;
 
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
 
import com.dao.StuDao;
import com.dao.StuDaoImpl;
 
@WebServlet("/MgrLoginServlet")
//用来实现对用户登录的操作
public class MgrLoginServlet extends HttpServlet {  
	private static final long serialVersionUID = 1L;
	//需要继承HttpServlet  并重写doGet  doPost方法
	public void doGet(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		doPost(request, response);  //将信息使用doPost方法执行   对应jsp页面中的form表单中的method
	}
	public void doPost(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		
		String name = request.getParameter("name"); //得到jsp页面传过来的参数
		String pwd = request.getParameter("pwd");
		
		StuDao ud = new StuDaoImpl();
		
		if(ud.mgrlogin(name, pwd)){
			request.setAttribute("message", "欢迎管理员"+name); //向request域中放置信息
			request.getRequestDispatcher("/mgrsuccess.jsp").forward(request, response);//转发到成功页面
		}else{
			response.sendRedirect("error.jsp"); //重定向到error页面
		}
	}
 
}