loginaction.java

spring+hiberbate+struts简单登入程序

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

package com.lxy.web.action;

import java.util.List;

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

import org.apache.struts.action.Action;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import org.springframework.context.ApplicationContext;
import org.springframework.web.context.support.WebApplicationContextUtils;

import com.lxy.dao.impl.LoginTableDaoImpl;
import com.lxy.web.form.LoginForm;

/** 
 * MyEclipse Struts
 * Creation date: 07-13-2006
 * 
 * XDoclet definition:
 * @struts.action path="/login" name="loginForm" input="/webshow/login.vm" parameter="opt" scope="request" validate="true"
 * @struts.action-forward name="index" path="/webshow/index.vm"
 */
public class LoginAction extends Action {

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

	// --------------------------------------------------------- Methods
    private static ApplicationContext ctx = null;
    /**
     * 在动作中绑定全局对象的方便方法
     *
     * @param name
     * 	java bean 的类型名字
     * @return
     * 	返回该类型的java bean全局对象
     */
    public Object getBean(String name) {
        if (ctx == null) {
            ctx = WebApplicationContextUtils.getRequiredWebApplicationContext(servlet.getServletContext());
        }
        return ctx.getBean(name);
    }
    

	/** 
	 * Method execute
	 * @param mapping
	 * @param form
	 * @param request
	 * @param response
	 * @return ActionForward
	 */
	public ActionForward execute(
		ActionMapping mapping,
		ActionForm form,
		HttpServletRequest request,
		HttpServletResponse response) {
		LoginForm loginForm = (LoginForm) form;
		LoginTableDaoImpl ltd = (LoginTableDaoImpl) this.getBean("loginTableDao");
		List lst = ltd.findByLoginName(loginForm.getUsername());
		if(lst==null || lst.size()<=0)
			return mapping.getInputForward();
		// TODO Auto-generated method stub
		return mapping.findForward("index");
	}
}