loginaction.java

一个购物网站

package login;
import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
import java.sql.*;
public class LoginAction extends HttpServlet implements Servlet {
	public void doGet(HttpServletRequest request, HttpServletResponse response)
		throws ServletException, IOException {
			String userName=request.getParameter("userName");//用户Id
			String pwd=request.getParameter("userPW");      //密码
			LoginBean loginBean=new LoginBean();//登录验证Bean
			System.out.println("***************"+userName);
			request.getSession().setAttribute("userName",userName);
			boolean flag=false;
			Object obj=null;
			try {
				flag=loginBean.checkLogin(userName,pwd);//验证登录信息
			} catch (Exception e) {
				System.out.println("LoginAction error!");
			}
			if(flag){
				getServletConfig().getServletContext().getRequestDispatcher("/main.jsp").forward(request,response);
			}else{
				getServletConfig().getServletContext().getRequestDispatcher("/login_error.jsp").forward(request,response);
			}
	}
	public void doPost(HttpServletRequest request, HttpServletResponse response)
		throws ServletException, IOException {
			doGet(request,response);
	}
}