loginaction.java

基于java/mysql的图书管理系统,主要使用的技术有java+jsp+tomcat+mysql+eclipse jdk版本1.6.0

//Created by MyEclipse Struts
// XSL source (default): platform:/plugin/com.genuitec.eclipse.cross.easystruts.eclipse_4.1.0/xslt/JavaClass.xsl

package com.zyuntao.struts.action;

import javax.servlet.http.*;
import java.sql.*;

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.zyuntao.struts.database.Condatabase;
import com.zyuntao.struts.form.LoginForm;
import com.zyuntao.struts.form.UserForm;
import com.zyuntao.struts.model.*;
/** 
 * MyEclipse Struts
 * Creation date: 04-04-2006
 * 
 * XDoclet definition:
 * @struts.action path="/Login" name="LoginForm" scope="request" validate="true"
 */
public class LoginAction extends Action {

	// --------------------------------------------------------- Instance Variables

	// --------------------------------------------------------- Methods

	/** 
	 * Method execute
	 * @param mapping
	 * @param form
	 * @param request
	 * @param response
	 * @return ActionForward
	 */
	public ActionForward execute(
		ActionMapping mapping,
		ActionForm form,
		HttpServletRequest request,
		HttpServletResponse response) throws SQLException{
		LoginForm LoginForm = (LoginForm) form;
		String username=LoginForm.getUsername();
		String password=LoginForm.getPassword();
		UserForm user= new UserForm();
UserManager um=new UserManager();
user=um.userlogin(username,password);
if(user==null)
		{
			ActionErrors errors = new ActionErrors();
		errors.add("userNameError", new ActionMessage(
						"error.namepassword"));
		saveErrors(request, errors);

		return mapping.getInputForward();
	}
		// TODO Auto-generated method stub
		
		HttpSession session=request.getSession();
		session.setAttribute("username",username );
		session.putValue("username",username);
		return mapping.findForward("success");
	}

}