loginaction.java

图书商城系统

package com.tang.admin.struts.action;

import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.ArrayList;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

import org.apache.struts.action.Action;
import org.apache.struts.action.ActionErrors;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.action.ActionMessage;


import com.tang.admin.foruse.*;
import com.tang.admin.struts.form.LoginForm;

/**
 * MyEclipse Struts Creation date: 05-17-2008
 * 
 * XDoclet definition:
 * 
 * @struts.action validate="true"
 * @struts.action-forward name="failure" path="login.jsp"
 */
public class LoginAction extends Action {
	/*
	 * Generated Methods
	 */

	/**
	 * Method execute
	 * 
	 * @param mapping
	 * @param form
	 * @param request
	 * @param response
	 * @return ActionForward
	 */
	public ActionForward execute(ActionMapping mapping, ActionForm form,
			HttpServletRequest request, HttpServletResponse response) {
		// TODO Auto-generated method stub
		String target = "failure";
		HttpSession session = request.getSession();
		LoginForm myform = (LoginForm) form;
		
		ActionErrors errors = new ActionErrors();
		AdminDAO facade = new AdminDAO();
		String formusername =  myform.getUsername();
		String formpassword =  myform.getPassword();
		facade.open();
		ArrayList al = facade.select("select * from admin where username='"+formusername+"'");
			
			
		if (al.size() != 0) {
			AdminBean bean = (AdminBean) al.get(0);
			String password = bean.getPassword();
			if (formpassword.equals(password)) {
				session.setAttribute("user", bean);
				target = "success";
			}
			else {
				ActionMessage msg = new ActionMessage("用户名或密码不正确", false);
				errors.add("login", msg);
				request.setAttribute(org.apache.struts.Globals.ERROR_KEY,
						errors);
				mapping.findForward(target);
			}
		} 
		return mapping.findForward(target);
	}
}