Struts-bean标签

谭明 — Wed, 17 Oct 2007 08:31:00 GMT

摘要: Struts标签之Bean标签 Bean标签�Q�主要与JavaBean有关回顾�Q? 阅读全文

谭明 2007-10-17 16:31 发表评论

Struts-logic标签

谭明 — Wed, 17 Oct 2007 06:10:00 GMT

摘要: Logic标签做逻辑判断所谓的标签库编�E�就是进行四�U�属性的操作: page、request、session、application 1. &n... 阅读全文

谭明 2007-10-17 14:10 发表评论

谭明 — Tue, 16 Oct 2007 13:51:00 GMT

在页面登录中我们�怼�(x��)用到当用��L(f��ng)��录成功后,在页面中昄��用户名了(ji��n)信息,下面我们��通过代码�q�行��单的实现
1. login.jsp

<%@ page language="java" pageEncoding="GbK"%>

<%@ taglib uri="http://struts.apache.org/tags-bean" prefix="bean" %>

<%@ taglib uri="http://struts.apache.org/tags-html" prefix="html" %>

<%@ taglib uri="http://struts.apache.org/tags-logic" prefix="logic" %>

<%@ taglib uri="http://struts.apache.org/tags-tiles" prefix="tiles" %>

<html:html lang="true">

<head>

<title>登陆�E�序title>

head>

<body>

<hr>

<br>

<html:errors/>

<logic:present name="flag" scope="request">

<logic:equal name="flag" value="true">

logic:equal>

<logic:equal name="flag" value="false">

<h2>错误的用�?/span>ID或密码！�Q�！h2>

logic:equal>

logic:present>

<br>

<html:form action="logins.do" method="post">

用户ID�Q?/span><html:text property="id"/><br>

�?/span> 码：(x��)<html:password property="password"/><br>

<html:submit value="登陆"/>

<html:reset value="重置"/>

html:form>

center>

body>

html:html>

2.Struts中的Action�c?br />

package com.tanm.struts.action;

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 com.tanm.dao.factory.DAOFactory;

import com.tanm.struts.form.LoginForm;

import com.tanm.vo.Person;

public class LoginAction extends Action {

public ActionForward execute(ActionMapping mapping, ActionForm form,

HttpServletRequest request, HttpServletResponse response) {

LoginForm loginForm = (LoginForm) form;

// �?/span>ActionForm中取�?gu��)��的内�?/span>

Person person = new Person();

person.setId(loginForm.getId());

person.setPassword(loginForm.getPassword());

boolean flag = false;

flag = DAOFactory.getPersonDAOInstance().isLogin(person);

request.setAttribute("flag", new Boolean(flag));

if (flag) {

// 如果成功,��?/span>person对象传递出�?/span>

// request.getSession().setAttribute("persons", person);

request.setAttribute("per", person); //注意per�?/span>jsp��面�?/span>bean:write�?/span>per相对�?/span>
return mapping.findForward("success");

} else {

return mapping.findForward("failure");

}

谭明 2007-10-16 21:51 发表评论

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Struts-bean标签

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