Struts2 学习笔记

最新推荐文章于 2024-04-06 15:33:48 发布

zhagener

最新推荐文章于 2024-04-06 15:33:48 发布

阅读量618

点赞数

CC 4.0 BY-SA版权

文章标签： struts

本文链接：https://blog.youkuaiyun.com/zhagener/article/details/46508853

Struts2 基础学习

Struts2 get/set 自动获取/设置数据

ActionSuport类引入

1、Action设置数据

1 属性驱动（fieldDriven）

A.基本数据类型属性 name password

B.JavaBean类型属性 User Bean user.name user.password

2 模型驱动（ModelDriven）

只能接受一种类型

2、Struts2处理传入多个值

1、处理数目不定的字符串

String[] hobbys 唱歌跳舞 ……

2、处理数目不定的JavaBean对象

List<Students>

3、struts.xml配置

package

name

namespace

abstract

extends

action

name

class

method

4、划分模块

struts.xml

<include file="cheliang.xml"></include>

<include file="zichan.xml"></include>

5、通配符

<action name="*_*" class="com.zhagener.action.{1}Action" method="{2}"> 注意：{1}Action 并且传入的Action名称必须是与Action类名完全相同

6、动态方法调用

官方不建议使用（不安全）

http://localhost:8180/struts2LoginDemo/Wildcard!list 【!】

7、Action的生命周期

1 每次请求一个实例

2 Spring管理一个实例

8、result配置

1 type默认是dispatcher内部转发

2 type为redirect重定向

3 type为chain链条

4 type为redirectAction重定向到Action

5 freemarker freemarker魔板

6 httpheader 返回一个已配置好的HTTP头信息响应

7 stream 将原始数据作为流传递回浏览器端

8 velocity 呈现Velocity魔板

9 xslt 该XML可以通过XSL魔板进行转换

10 plaintext 返回普通文本内容

9、result全局配置,如果再Action中没有配置error,则到<global-result>中查找对应error配置

<global-result>

<result name="error">error.jsp</result>

</global-result>

10、struts2 拦截器

1 拦截器可拔插（AOP的一种实现），从而实现了可重用性

2 struts2 预定义拦截器 & 拦截器栈

3 自定义拦截器简单示例

11、Struts2 值栈

值栈：是对应每个请求对象的一套内存数据的封装，Struts2会给每个请求创建一个新的值栈。

值栈能够线程安全地为每个请求提供公共的数据存取服务。

12、Struts2 OGNL

OGNL是对象图导航语言（Object-Graph Navigation Language）的缩写。它是功能强大的表达式语言

OGNL访问ValueStack数据

<s:property value="account"/>

OGNL访问ActionContext数据：

parameter 请求参数 request.getParameter(……)

request 请求作用域中的数据 request.getAttribute(……)

session 会话作用域中的数据 session.getAttribute(……)

application 应用程序作用域的数据 application.getAttribute(……)

attr 按照 page request session application顺序查找值

OGNL 访问复杂对象：

访问JavaBean对象 <s:property value="对象引用名.属性名"/>

访问集合对象 <s:property value="对象引用名[index].属性名"/>

访问Map对象 <s:property value="对象引用名['key'].属性名"/>

OGNL 访问静态方法和属性：

访问静态属性 <s:property value="@staticClass@staticAtrr"/>

访问静态方法<s:property value="@staticClass@staticMethod()"/> <constant name="struts.ognl.allowStaticMethodAccess" value="true"></constant>/

13、Struts2 标签

Struts2自己封装了一套标签，比JSTL强大，而且与Struts2中的其他功能无缝结合。

当然Struts2标签的内容较多，随着版本的升级，标签和属性越来越多，

核心标签根据功能分为：

数据标签：

控制标签：

界面标签：

其他标签：

Struts的标签比JSTL标签强大的同时，性能较JSTL要差。

Struts2 --数据标签：

property标签

default标签指定默认值

escapeHtml标签执行HTML

set标签：
<s:set var="i" value="1"></s:set>
<s:set var="a" value="'action范围的值'" scope="action"></s:set>
<s:set var="p" value="'page范围的值'" scope="page"></s:set>
<s:set var="r" value="'request范围的值'" scope="request"></s:set>
<s:set var="s" value="'session范围的值'" scope="session"></s:set>
<s:set var="a" value="'application范围的值'" scope="application"></s:set>

<s:property value="#i"/><br/>
<s:property value="#a"/><br/>
<s:property value="#attr.p"/><br/>
<s:property value="#request.r"/><br/>
<s:property value="#session.s"/><br/>
<s:property value="#application.a"/><br/>

bean标签：
<s:bean name="com.zhagener.entity.Student" var="student">
<s:param name="name" value="'zhansan'"></s:param>
<s:param name="age" value="20"></s:param>
</s:bean>
<s:property value="#student.name"/><br/>
<s:property value="#student.age"/><br/>

date标签：
1、必须先引入Date类所属包：
<%@ page import="java.lang.*" %>
2、定义个request的值
request.setAttribute("date",new Date());
3、使用<s:date/>标签：
${date}<br/>
当前时间：<s:date name="#request.date" format="yyyy-MM-dd-mm-ss"/>

debug标签：(多用于查看值栈信息，供调试使用)
<s:debug></s:debug>

URL&a标签：
<s:url action="hello" namespace="" id="h">
<s:param name="name" value="'strut2'"></s:param>
</s:url>
<s:a href="%{h}">超链接</s:a>
<br/>
<s:a action="hello" namespace="/foreground" >
<s:param name="name" value="'struts2'"></s:param>超链接2
</s:a>

include标签：
<s:include value="/footer.jsp"></s:include>

Struts2 --控制标签：

ifelse标签：
request.setAttribute("age",20);

<s:if test="#request.age < 20 ">
年龄小于20岁
</s:if>
<s:elseif test="#request.age > 20">
年龄大于20岁
</s:elseif>
<s:else>
年龄等于20
</s:else>

iterator标签：
<%@ page import="com.zhagener.entity.Student" %>

<%
List<Student> students = new ArrayList<Student>();
students.add(new Student("zhangsan_1",1));
students.add(new Student("zhangsan_2",2));
students.add(new Student("zhangsan_3",3));
students.add(new Student("zhangsan_4",4));
students.add(new Student("zhangsan_5",5));
request.setAttribute("students",students);
%>

<table >
<tr>
<th>序号</th>
<th>姓名</th>
<th>年龄</th>
</tr>
<s:iterator value="#request.students" status="status">
<tr>
<td><s:property value="#status.index+1"/></td>
<td><s:property value="name"/></td>
<td><s:property value="age"/></td>
</tr>
</s:iterator>
</table>

append标签：
<%@ page import="com.zhagener.entity.Student" %>

List<Student> students = new ArrayList<Student>();
students.add(new Student("zhangsan_1",1));
students.add(new Student("zhangsan_2",2));
students.add(new Student("zhangsan_3",3));
students.add(new Student("zhangsan_4",4));
students.add(new Student("zhangsan_5",5));

List<Student> students1 = new ArrayList<Student>();
students1.add(new Student("zhangsan_11",11));
students1.add(new Student("zhangsan_21",21));
students1.add(new Student("zhangsan_31",31));
students1.add(new Student("zhangsan_41",41));
students1.add(new Student("zhangsan_51",51));
request.setAttribute("students",students);
request.setAttribute("students1",students1);

<s:append var="students3">
<s:param value="#request.students"></s:param>
<s:param value="#request.students1"></s:param>
</s:append>

<table >
<tr>
<th>序号</th>
<th>姓名</th>
<th>年龄</th>
</tr>

<table>
<s:iterator value="students3" status="status">
<tr>
<td><s:property value="#status.index+1"/></td>
<td><s:property value="name"/></td>
<td><s:property value="age"/></td>
</tr>
</s:iterator>
</table>

generator分隔标签：
<s:generator separator="," val="'张三,李四,王五,赵六'" var="nameList"></s:generator>
<s:iterator value="#nameList">
<s:property/>
</s:iterator>

merge组合标签：（与append相似，只不过不是顺序的）
<s:merge var="students3">
<s:param value="#request.students"></s:param>
<s:param value="#request.students1"></s:param>
</s:merge>

sort标签：
List<Student> students = new ArrayList<Student>();
students.add(new Student("zhangsan_1",1));
students.add(new Student("zhangsan_2",2));
students.add(new Student("zhangsan_3",3));
students.add(new Student("zhangsan_4",4));
students.add(new Student("zhangsan_5",5));

List<Student> students1 = new ArrayList<Student>();
students1.add(new Student("zhangsan_11",11));
students1.add(new Student("zhangsan_21",21));
students1.add(new Student("zhangsan_31",81));
students1.add(new Student("zhangsan_41",41));
students1.add(new Student("zhangsan_51",51));
request.setAttribute("students",students);
request.setAttribute("students1",students1);

<s:merge var="merge_students">
<s:param value="#request.students"></s:param>
<s:param value="#request.students1"></s:param>
</s:merge>

<s:bean id="studentComparator" name="com.zhagener.comparator.StudentComparator"/>
<s:sort comparator="#studentComparator" source="merge_students">
<s:debug></s:debug>
<table >
<tr>
<th>序号</th>
<th>姓名</th>
<th>年龄</th>
</tr>
<s:iterator status="status">
<tr>
<td><s:property value="#status.index+1"/></td>
<td><s:property value="name"/></td>
<td><s:property value="age"/></td>
</tr>
</s:iterator>
</table>
</s:sort>

subset标签：
List<Student> students = new ArrayList<Student>();
students.add(new Student("zhangsan_1",1));
students.add(new Student("zhangsan_2",2));
students.add(new Student("zhangsan_3",3));
students.add(new Student("zhangsan_4",4));
students.add(new Student("zhangsan_5",5));

List<Student> students1 = new ArrayList<Student>();
students1.add(new Student("zhangsan_11",11));
students1.add(new Student("zhangsan_21",21));
students1.add(new Student("zhangsan_31",81));
students1.add(new Student("zhangsan_41",41));
students1.add(new Student("zhangsan_51",51));
request.setAttribute("students",students);
request.setAttribute("students1",students1);

<s:merge var="merge_students">
<s:param value="#request.students"></s:param>
<s:param value="#request.students1"></s:param>
</s:merge>

<table>
<tr>
<th>序号</th>
<th>姓名</th>
<th>年龄</th>
</tr>
<s:subset source="merge" count="3" start="0">
<s:iterator status="status">
<tr>
<td><s:property value="#status.index+1"/></td>
<td><s:property value="name"/></td>
<td><s:property value="age"/></td>
</tr>
</s:iterator>
</s:subset>

</table>

Struts2 --页面标签：

Form标签：表单标签
<s:form>
<s:textfield name="name" label="用户名："></s:textfield><br/>
<s:password name="password" label="密码："></s:password><br/>
<s:textarea name="des" label="备注："></s:textarea><br/>
<s:submit value="Login on"></s:submit><br/>
<s:radio list="#{0:'男',1:'女'}" label="性别：" name="sex" value="0"></s:radio>
<s:checkboxlist list="#{0:'唱歌',1:'跳舞',2:'极限运动',3:'健身',4:'摄影'}" name="hobbies" value="{0,1,2,3,4}"></s:checkboxlist>
<s:select list="#{0:'唱歌',1:'跳舞',2:'极限运动',3:'健身',4:'摄影'}" name="select" value="{0,1,2}" multiple="true"></s:select>
</s:form>

Text标签：文本标签
<s:textfield name="name" label="用户名："></s:textfield><br/>
<s:password name="password" label="密码："></s:password><br/>
<s:textarea name="des" label="备注："></s:textarea><br/>

Radios标签：单选框标签
<s:radio list="#{0:'男',1:'女'}" label="性别：" name="sex" value="0"></s:radio>

CheckBoxList标签：复选框标签
<s:checkboxlist list="#{0:'唱歌',1:'跳舞',2:'极限运动',3:'健身',4:'摄影'}" name="hobbies" value="{0,1,2,3,4}"></s:checkboxlist>

select标签：下拉框标签
<s:select list="#{0:'唱歌',1:'跳舞',2:'极限运动',3:'健身',4:'摄影'}" name="select" value="{0,1,2}" multiple="true"></s:select>

Struts2 --其他标签：

updownselect标签：

<s:updownselect

list="#{0:'游戏',1:'唱歌',2:'跳舞'}"

name="hobbies"

headerKey="-1"

headerValue="请选择"

emptyOption="true"

allowMoveUp="true"

allowMoveDown="true"

allowSelectAll="true"

moveUpLabel="Move Up"

moveDownLabel="Move Down"

selectAllLabel="Select All"

/>

optiontransferselect标签：

<s:optiontransferselect label="选择你喜欢图书"

name="cnbook"

leftTitle="中文图书"

list="{'struts2权威指南','轻量级javaeye 企业应用空实战','ajax讲义'}"

doubleName="enBook"

rightTitle="外文图书"

doubleList="{'JavaScrip:The definitive Guide','export one-to-one'}"

multiple="true"

addToLeftLabel="向左移动"

addToRightLabel="向右移动"

addAllToRightLabel="全部右移"

addAllToLeftLabel="全部左移"

allowSelectAll="true"

headerKey="cnKey"

headerValue="选择图书"

emptyOption="true"

doubleHeaderKey="enKey"

doubleHeaderValue="选择外文图书"

doubleMultiple="true"

doubleEmptyOption="true"

leftDownLabel="向下移动"

rightDownLabel="向下移动"

leftUpLabel="向上移动"
rightUpLabel="向上移动" />

Struts2 --fn标签:

14、struts2国际化(Internationalization)：

编码转换工具：http://tool.chinaz.com/Tools/Unicode.aspx

<constant name="struts.custom.i18n.resources" value="resource" />
resource_en_US.properties
resource_zh_CN.properties
resource.properties

userName=\u7528\u6237\u540d
password=\u5bc6\u7801
login=\u767b\u5f55
welcome=\u6b22\u8fce\u0020{0}

15、Struts2 内置验证：

普通字段验证：
验证表达式：
<s:actionerror/>

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE validators PUBLIC "-//Apache Struts//XWork Validator 1.0.2//EN" "http://struts.apache.org/dtds/xwork-validator-1.0.2.dtd">

<validators>
	<field name="user.userName">
		<field-validator type="requiredstring">
			<message>请输入用户名</message>
		</field-validator>
		<field-validator type="stringlength">
			<param name="minLength">6</param>
			<param name="maxLength">10</param>
			<message>用户名必须在${minLength}和${maxLength}之间</message>
		</field-validator>
	</field>
	
	<field name="user.name">
		<field-validator type="requiredstring">
			<message>请输入姓名</message>
		</field-validator>
	</field>
	
	<field name="user.age">
		<field-validator type="int">
			<param name="min">18</param>
			<param name="max">120</param>
			<message>年龄必须满${min}岁</message>
		</field-validator>
	</field>
	
	<field name="user.email">
		<field-validator type="email">
			<message>邮件格式不正确</message>
		</field-validator>
	</field>
	
	<field name="user.homePage">
		<field-validator type="url">
			<message>主页格式不对</message>
		</field-validator>
	</field>
	
    <validator type="expression">
    	<param name="expression"><![CDATA[!user.name.equals(user.userName)]]></param>
    	<message>用户名和真实姓名不能相同</message>
    </validator>

</validators>

16、Struts2 内置验证：

1、添加自定义标签，并保存至项目根目录下：

<?xml version="1.0" encoding="UTF-8"?>
	<!DOCTYPE validators PUBLIC
			"-//Apache Struts//XWork Validator Config 1.0//EN"
			"http://struts.apache.org/dtds/xwork-validator-config-1.0.dtd">
	<validators>
		<validator name="required" class="com.opensymphony.xwork2.validator.validators.RequiredFieldValidator"/>
		<validator name="requiredstring" class="com.opensymphony.xwork2.validator.validators.RequiredStringValidator"/>
		<validator name="int" class="com.opensymphony.xwork2.validator.validators.IntRangeFieldValidator"/>
		<validator name="double" class="com.opensymphony.xwork2.validator.validators.DoubleRangeFieldValidator"/>
		<validator name="date" class="com.opensymphony.xwork2.validator.validators.DateRangeFieldValidator"/>
		<validator name="expression" class="com.opensymphony.xwork2.validator.validators.ExpressionValidator"/>
		<validator name="fieldexpression" class="com.opensymphony.xwork2.validator.validators.FieldExpressionValidator"/>
		<validator name="email" class="com.opensymphony.xwork2.validator.validators.EmailValidator"/>
		<validator name="url" class="com.opensymphony.xwork2.validator.validators.URLValidator"/>
		<validator name="visitor" class="com.opensymphony.xwork2.validator.validators.VisitorFieldValidator"/>
		<validator name="conversion" class="com.opensymphony.xwork2.validator.validators.ConversionErrorFieldValidator"/>
		<validator name="stringlength" class="com.opensymphony.xwork2.validator.validators.StringLengthFieldValidator"/>
		<validator name="regex" class="com.opensymphony.xwork2.validator.validators.RegexFieldValidator"/>
		<validator name="conditionalvisitor" class="com.opensymphony.xwork2.validator.validators.ConditionalVisitorFieldValidator"/>
		
		<validator name="sensitive" class="com.java1234.validators.SensitiveWordValidators"/>
	</validators>

2、定义自定义验证标签处理类：

package com.java1234.validators;

		import com.opensymphony.xwork2.validator.ValidationException;
		import com.opensymphony.xwork2.validator.validators.FieldValidatorSupport;
		
		public class SensitiveWordValidators extends FieldValidatorSupport{
		
			@Override
			public void validate(Object object) throws ValidationException {
				String fieldName=this.getFieldName();
				String value=this.getFieldValue(fieldName, object).toString();
				if(!check(value)){
					this.addFieldError(fieldName, object);
				}
			}
			
			public boolean check(String value){
				String sensitiveWords[]={"操","你妈"};
				for(int i=0;i<sensitiveWords.length;i++){
					if(value.indexOf(sensitiveWords[i])>-1){
						return false;
					}
				}
				return true;
			}
		
		}

3、使用自定义验证标签：

	<?xml version="1.0" encoding="UTF-8"?>
	<!DOCTYPE validators PUBLIC "-//Apache Struts//XWork Validator 1.0.2//EN" "http://struts.apache.org/dtds/xwork-validator-1.0.2.dtd">
	
	<validators>
		<field name="name">
			<field-validator type="requiredstring">
				<message>请输入姓名</message>
			</field-validator>
			
			<field-validator type="sensitive">
				<message>有敏感词汇</message>
			</field-validator>
		</field>
	
	/validators>

17、Struts2 文件上传和下载：

文件上传：

struts2文件上传基于struts2拦截器实现的；
struts2文件上传使用的是fileupload组件；
Form配置 enctype="multipart/form-data"；
struts2获取上传文件：name（name是文件表单的name）；
struts2获取上传文件名：name+FileName；
struts2获取上传文件的类型:name+ContentType；

文件下载：

返回的是文件流；

<param name="contentDisposition">attachment;filename=${fileName}</param>

package com.zhagener.action;

import java.io.File;

import org.apache.commons.io.FileUtils;

import com.opensymphony.xwork2.ActionSupport;

public class FileUploadAction extends ActionSupport {

	// private File java1234;// file
	// private String java1234FileName;// file name
	// private String java1234ContentType;// file type
	private File[] java1234s;// file
	private String[] java1234sFileName;// file name
	private String[] java1234sContentType;// file type

	public File[] getJava1234s() {
		return java1234s;
	}

	public void setJava1234s(File[] java1234s) {
		this.java1234s = java1234s;
	}

	public String[] getJava1234sFileName() {
		return java1234sFileName;
	}

	public void setJava1234sFileName(String[] java1234sFileName) {
		this.java1234sFileName = java1234sFileName;
	}

	public String[] getJava1234sContentType() {
		return java1234sContentType;
	}

	public void setJava1234sContentType(String[] java1234sContentType) {
		this.java1234sContentType = java1234sContentType;
	}

	@Override
	public String execute() throws Exception {
		for (int i = 0; i < java1234s.length; i++) {
			System.out.println("File Name: " + java1234sFileName[i]);
			System.out.println("File Type: " + java1234sContentType[i]);
			File saveFile = new File("c:/" + java1234sFileName[i]);
			FileUtils.copyFile(java1234s[i], saveFile);
		}
		return "success";
	}
}

package com.zhagener.action;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.InputStream;

import com.opensymphony.xwork2.ActionSupport;

public class FileDownloadAction extends ActionSupport {


	private String fileName ;

	public String getFileName() throws Exception{
		String fileName = new String(this.fileName.getBytes(),"ISO8859-1");
		return fileName;
	}

	public void setFileName(String fileName) {
		this.fileName = fileName;
	}


	public InputStream getInputStream() throws FileNotFoundException {
		File file = new File("c:/美女1号.jpg");
		this.fileName = "美女1号";
		FileInputStream fs = new FileInputStream(file);
		return fs;
	}
}

<?xml version="1.0" encoding="UTF-8" ?>

<!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.1//EN" "http://struts.apache.org/dtds/struts-2.1.dtd">
<struts>
	<constant name="struts.multipart.maxSize" value="20000000"></constant>
	
	<package name="manager" extends="struts-default" namespace="/">
		<action name="fileupload" class="com.zhagener.action.FileUploadAction">
			<result name="success">/success.jsp</result>
			<result name="input">/index.jsp</result>
<!--			<interceptor-ref name="fileUpload">-->
<!--				<param name="allowedTypes">image/bmp,image/x-png,image/gif,image/jpg,image/jpeg,image/pjpeg</param>-->
<!--				<param name="maximumSize">81101</param>-->
<!--			</interceptor-ref>-->
			<interceptor-ref name="defaultStack"></interceptor-ref>
		</action>
		<action name="filedownload" class="com.zhagener.action.FileDownloadAction">
			<result type="stream">
				<param name="contentDisposition">attachment;filename=${fileName}</param>
			</result>
		</action>
		
		<action name="student" method="add" class="com.zhagener.action.StudentAction">
			<result name="success">/success.jsp</result>
			<result name="input">/error.jsp</result>
<!--			<interceptor-ref name="token"></interceptor-ref>-->
<!--			<interceptor-ref name="defaultStack"></interceptor-ref>-->
<!--			<result name="invalid.token">/index.jsp</result>-->
				<result name="tokenSession">/index.jsp</result>
				<interceptor-ref name="defaultStack"></interceptor-ref>
		</action>
	</package>
</struts>

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%@taglib prefix="s" uri="/struts-tags"%>
<%
	String path = request.getContextPath();
	String basePath = request.getScheme() + "://" + request.getServerName() + ":" + request.getServerPort() + path + "/";
%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
	<head>
		<base href="<%=basePath%>">

		<title>My JSP 'index.jsp' starting page</title>
		<meta http-equiv="pragma" content="no-cache">
		<meta http-equiv="cache-control" content="no-cache">
		<meta http-equiv="expires" content="0">
		<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
		<meta http-equiv="description" content="This is my page">
	</head>

	<body>
		<s:fielderror></s:fielderror>
		<form action="fileupload" method="post" enctype="multipart/form-data">
			文件1：
			<input type="file" name="java1234s" />
			<br />
			文件2：
			<input type="file" name="java1234s" />
			<br />
			文件3：
			<input type="file" name="java1234s" />
			<br />
			<input type="submit" value="提交" />
		</form>
		<a href="filedownload">文件下载</a>
		<br />

		<s:actionerror/>
		<form action="student" method="post">
			<s:token></s:token>
			姓名：
			<input type="text" name="student.name" />
			<br />
			年龄：
			<input type="text" name="student.age" />
			<br />
			<input type="submit" value="提交" />

		</form>

	</body>
</html>

18、Struts2 防止重复提交：

		<action name="student" method="add" class="com.zhagener.action.StudentAction">
			<result name="success">/success.jsp</result>
			<result name="input">/error.jsp</result>
<!--			<interceptor-ref name="token"></interceptor-ref>-->
<!--			<interceptor-ref name="defaultStack"></interceptor-ref>-->
<!--			<result name="invalid.token">/index.jsp</result>-->
				<result name="tokenSession">/index.jsp</result>
				<interceptor-ref name="defaultStack"></interceptor-ref>
		</action>

package com.zhagener.action;

import com.opensymphony.xwork2.ActionSupport;
import com.zhagener.entity.Student;

public class StudentAction extends ActionSupport {

	private Student student;

	@Override
	public String execute() throws Exception {
		return "success";
	}

	public Student getStudent() {
		return student;
	}

	public void setStudent(Student student) {
		this.student = student;
	}

	public String add() {
		System.out.println("开始添加学生：" + student);
		try {
			Thread.sleep(2000);
		} catch (InterruptedException e) {
			e.printStackTrace();
		}
		return SUCCESS;
	}
}