基于Struts2+Hibernate的学生信息管理系统实例
目录结构如下：
在mysql数据库中，建立一个数据库 stu,建立一张表stuinfo，如下图所示：
1.新建一个web project，命名为ch15，然后导入struts 2核心包和hibernate核心包，导入方法是：右击ch15这个项目，选择倒数第二项：,myeclipse，选择Add Struts 2...，导入hibernate的核心包也是一样。
2.首先要导入struts 2 核心包和hibernate核心包，但是struts 2 的核心包内的 antlr-2.x.x.jar包要删掉，删除方法是：window——>preferences——>Myeclipse——>Project Capabilitie——>Struts 2. 然后选中右边的antlr-2.x.x.jar包，选择右边的remove，就OK啦
3.在src下建立四个包，分别为addHibernateFile, Dao, PO, studentAction
4.addHibernateFile下的代码（HibernateSessionFactory.java）：
package addHibernateFile;
import javax.swing.JOptionPane;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.cfg.Configuration;
public class HibernateSessionFactory {
private static SessionFactory sessionFactory;
private static Configuration configuration=new Configuration();
public HibernateSessionFactory(){
}
static{
try{
Configuration configure = configuration.configure("hibernate.cfg.xml");
sessionFactory=configure.buildSessionFactory();
}catch(Exception e){
message("生成SessionFactoyr失败："+e);
}
}
public static Session getSession(){
return sessionFactory.openSession();
}
public static void message(String mess){
int type=JOptionPane.YES_NO_OPTION;
String title="提示信息";
JOptionPane.showMessageDialog(null, mess, title, type);
}
}
5.Dao包下面的代码（StudentDao.java）:
package Dao;
import addHibernateFile.HibernateSessionFactory;
import PO.Stuinfo;
import java.util.List;
import javax.swing.JOptionPane;
import org.hibernate.Query;
import org.hibernate.Session;
import org.hibernate.Transaction;
public class StudentDao {
private Transaction transaction;
private Session session;
private Query query;
public StudentDao(){
}
public boolean saveInfo(Stuinfo info){
try{
session=HibernateSessionFactory.getSession();
transaction=session.beginTransaction();
session.save(info);
transaction.commit();
session.close();
return true;
}catch(Exception e){
message("saveInfo.error:"+e);
e.printStackTrace();
return false;
}
}
public List findInfo(String type,Object value){
session=HibernateSessionFactory.getSession();
try{
transaction=session.beginTransaction();
String queryString="from Stuinfo as model where model."+type+"=?";
query=session.createQuery(queryString);
query.setParameter(0, value);
List list=query.list();
transaction.commit();
session.close();
return list;
}catch(Exception e){
message("findInfo.error:"+e);
e.printStackTrace();
return null;
}
}
public List findAllInfo(){
session=HibernateSessionFactory.getSession();
try{
transaction=session.beginTransaction();
String queryString="from Stuinfo";
query=session.createQuery(queryString);
List list=query.list();
transaction.commit();
session.close();
return list;
}catch(Exception e){
message("findInfo.error:"+e);
e.printStackTrace();
return null;
}
}
public boolean deleteInfo(String id){
try{
session=HibernateSessionFactory.getSession();
transaction=session.beginTransaction();
Stuinfo info=new Stuinfo();
info=(Stuinfo)session.get(Stuinfo.class, id);
session.delete(info);
transaction.commit();
session.close();
return true;
}catch(Exception e){
message("deleteInfo.error:"+e);
e.printStackTrace();
return false;
}
}
public boolean updateInfo(Stuinfo info){
try{
session=HibernateSessionFactory.getSession();
transaction=session.beginTransaction();
session.update(info);
transaction.commit();
session.close();
return true;
}catch(Exception e){
message("updateInfo.error:"+e);
e.printStackTrace();
return false;
}
}
public void message(String mess){
int type=JOptionPane.YES_NO_OPTION;
String title="提示信息";
JOptionPane.showMessageDialog(null, mess, title, type);
}
}
6.PO包下面的代码：
（1）Stuinfo.java
package PO;
public class Stuinfo implements java.io.Serializable {
private String id;
private String name;
private String sex;
private int age;
private float weight;
public String getId() {
return this.id;
}
public void setId(String id) {
this.id = id;
}
public String getName() {
return this.name;
}
public void setName(String name) {
this.name = name;
}
public String getSex() {
return this.sex;
}
public void setSex(String sex) {
this.sex = sex;
}
public int getAge() {
return this.age;
}
public void setAge(int age) {
this.age = age;
}
public float getWeight() {
return this.weight;
}
public void setWeight(float weight) {
this.weight = weight;
}
}
（2）Stuinfo.hbm.xml
<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<!-- Generated 2011-12-9 12:17:31 by Hibernate Tools 3.2.1.GA -->
<hibernate-mapping>
<class name="PO.Stuinfo" table="stuinfo" catalog="stu">
<id name="id" type="string">
<column name="id" length="20" />
<generator class="assigned" />
</id>
<property name="name" type="string">
<column name="name" length="20" not-null="true" />
</property>
<property name="sex" type="string">
<column name="sex" length="5" not-null="true" />
</property>
<property name="age" type="int">
<column name="age" not-null="true" />
</property>
<property name="weight" type="float">
<column name="weight" precision="10" scale="0" not-null="true" />
</property>
</class>
</hibernate-mapping>
7.StudentAction包下的代码：
（1）AddMessageAction.java
package studentAction;
import Dao.StudentDao;
import PO.Stuinfo;
import com.opensymphony.xwork2.ActionSupport;
import java.util.List;
import javax.swing.JOptionPane;
public class AddMessageAction extends ActionSupport{
private String id;
private String name;
private String sex;
private int age;
private float weight;
private String message="input";
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getSex() {
return sex;
}
public void setSex(String sex) {
this.sex = sex;
}
public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
public float getWeight() {
return weight;
}
public void setWeight(float weight) {
this.weight = weight;
}
public void validate(){
if(this.getId()==null||this.getId().length()==0){
addFieldError("id","学号不允许为空!");
}else{
StudentDao dao=new StudentDao();
List list=dao.findInfo("id", this.getId());
if(!list.isEmpty()){
addFieldError("id","学号已存在!");
}
}
if(this.getName()==null||this.getName().length()==0){
addFieldError("name","姓名不允许为空!");
}
if(this.getAge()>130){
addFieldError("age","请认真核实年龄！");
}
if(this.getWeight()>500){
addFieldError("weight","请认真核实体重！");
}
}
public String execute() throws Exception{
StudentDao dao=new StudentDao();
boolean save=dao.saveInfo(info());
if(save){
message="success";
}
return message;
}
public Stuinfo info(){
Stuinfo info=new Stuinfo();
info.setId(this.getId());
info.setName(this.getName());
info.setSex(this.getSex());
info.setAge(this.getAge());
info.setWeight(this.getWeight());
return info;
}
public void message(String mess){
int type=JOptionPane.YES_NO_OPTION;
String title="提示信息";
JOptionPane.showMessageDialog(null, mess, title, type);
}
}
（2）DeleteMessageAction.java
package studentAction;
import Dao.StudentDao;
import com.opensymphony.xwork2.ActionSupport;
import javax.swing.JOptionPane;
public class DeleteMessageAction extends ActionSupport{
private String id;
private String message;
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
public void validate(){
if(this.getId().equals("null")){
message("暂无学生信息！");
addFieldError("id","暂无学生信息！");
}
}
public String execute() throws Exception{
StudentDao dao=new StudentDao();
boolean del=dao.deleteInfo(this.getId());
if(del){
message="success";
}
return message;
}
public void message(String mess){
int type=JOptionPane.YES_NO_OPTION;
String title="提示信息";
JOptionPane.showMessageDialog(null, mess, title, type);
}
}
（3）FindMessageAction.java
package studentAction;
import Dao.StudentDao;
import com.opensymphony.xwork2.ActionSupport;
import java.util.List;
import javax.servlet.http.HttpServletRequest;
import javax.swing.JOptionPane;
import org.apache.struts2.ServletActionContext;
public class FindMessageAction extends ActionSupport{
private String id;
private HttpServletRequest request;
private String message="input";
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
public void validate(){
if(this.getId().equals("null")){
message("暂无学生信息！");
addFieldError("id","暂无学生信息！");
}
}
public String execute() throws Exception{
request=ServletActionContext.getRequest();
StudentDao dao=new StudentDao();
List list=dao.findInfo("id", this.getId());
request.getSession().setAttribute("oneInfo", list);
message="success";
return message;
}
public void message(String mess){
int type=JOptionPane.YES_NO_OPTION;
String title="提示信息";
JOptionPane.showMessageDialog(null, mess, title, type);
}
}
（4）LookMessageAction.java
package studentAction;
import Dao.StudentDao;
import com.opensymphony.xwork2.ActionSupport;
import java.util.List;
import javax.servlet.http.HttpServletRequest;
import org.apache.struts2.ServletActionContext;
public class LookMessageAction extends ActionSupport{
private HttpServletRequest request;
private String message="input";
public String execute() throws Exception{
request=ServletActionContext.getRequest();
StudentDao dao=new StudentDao();
List list=dao.findAllInfo();
request.getSession().setAttribute("count", list.size());
request.getSession().setAttribute("allInfo", list);
message="success";
return message;
}
}
（5）UpdateMessageAction.java
package studentAction;
import Dao.StudentDao;
import PO.Stuinfo;
import com.opensymphony.xwork2.ActionSupport;
import javax.swing.JOptionPane;
public class UpdateMessageAction extends ActionSupport{
private String id;
private String name;
private String sex;
private int age;
private float weight;
private String message="input";
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getSex() {
return sex;
}
public void setSex(String sex) {
this.sex = sex;
}
public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
public float getWeight() {
return weight;
}
public void setWeight(float weight) {
this.weight = weight;
}
public void validate(){
if(this.getName()==null||this.getName().length()==0){
addFieldError("name","姓名不允许为空!");
}
if(this.getAge()>130){
addFieldError("age","请认真核实年龄！");
}
if(this.getWeight()>500){
addFieldError("weight","请认真核实体重！");
}
}
public String execute() throws Exception{
StudentDao dao=new StudentDao();
boolean update=dao.updateInfo(info());
if(update){
message="success";
}
return message;
}
public Stuinfo info(){
Stuinfo info=new Stuinfo();
info.setId(this.getId());
info.setName(this.getName());
info.setSex(this.getSex());
info.setAge(this.getAge());
info.setWeight(this.getWeight());
return info;
}
public void message(String mess){
int type=JOptionPane.YES_NO_OPTION;
String title="提示信息";
JOptionPane.showMessageDialog(null, mess, title, type);
}
}
8.hibernate.cfg.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-configuration PUBLIC "-//Hibernate/Hibernate Configuration DTD 3.0//EN" "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
<session-factory>
<property name="hibernate.dialect">org.hibernate.dialect.MySQLDialect</property>
<property name="hibernate.connection.driver_class">com.mysql.jdbc.Driver</property>
<property name="hibernate.connection.url">jdbc:mysql://localhost:3306/stu</property><span style="white-space:pre"> </span><span style="font-family: Arial, Helvetica, sans-serif;"><!--stu是你建的数据库名--></span><span style="white-space:pre">
</span> <property name="hibernate.connection.username">root</property><span style="white-space:pre"> </span><!--数据库用户名-->
<property name="hibernate.connection.password">1234</property><span style="white-space:pre"> </span><span style="font-family: Arial, Helvetica, sans-serif;"><!--数据库用户密码--></span><span style="white-space:pre">
</span> <mapping resource="PO/Stuinfo.hbm.xml"/>
</session-factory>
</hibernate-configuration>
9.struts.xml
<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
"http://struts.apache.org/dtds/struts-2.0.dtd">
<struts>
<!-- Configuration for the default package. -->
<package name="default" extends="struts-default">
<action name="lookMessageAction" class="studentAction.LookMessageAction">
<result name="success">/student/lookMessage.jsp</result>
<result name="input">/student/index.jsp</result>
</action>
<action name="addMessageAction" class="studentAction.AddMessageAction">
<result name="success" type="chain">lookMessageAction</result>
<result name="input">/student/addMessage.jsp</result>
</action>
<action name="findMessageAction" class="studentAction.FindMessageAction">
<result name="success">/student/updateMessage.jsp</result>
<result name="input">/student/findMessage.jsp</result>
</action>
<action name="updateMessageAction" class="studentAction.UpdateMessageAction">
<result name="success" type="chain">lookMessageAction</result>
<result name="input">/student/updateMessage.jsp</result>
</action>
<action name="deleteMessageAction" class="studentAction.DeleteMessageAction">
<result name="success" type="chain">lookMessageAction</result>
<result name="input">/student/deleteMessage.jsp</result>
</action>
</package>
</struts>
10.context.xml
<?xml version="1.0" encoding="UTF-8"?> <Context antiJARLocking="true" path="/ch15"/>
11.WebRoot下的student文件夹下的jsp文件代码：
（1）addMessage.jsp
<%@page contentType="text/html" pageEncoding="UTF-8"%>
<%@taglib prefix="s" uri="/struts-tags" %>
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title><s:text name="学生信息管理系统-增加"/></title>
</head>
<body bgcolor="pink">
<s:div align="center">
<hr color="red"/>
<br/>
<table align="center" width="80%">
<tr>
<td width="25%">
<s:a href="http://localhost:8080/ch15/student/lookMessage.jsp">查看学生信息</s:a>
</td>
<td width="25%">
添加学生信息
</td>
<td width="25%">
<s:a href="http://localhost:8080/ch15/student/findMessage.jsp">修改学生信息</s:a>
</td>
<td width="25%">
<s:a href="http://localhost:8080/ch15/student/deleteMessage.jsp">删除学生信息</s:a>
</td>
</tr>
</table>
<br/>
<hr color="red"/>
<center><font color="red" size="6">添加学生信息</font></center>
</s:div>
<s:form action="addMessageAction" method="post">
<table align="center" width="30%" bgcolor="gray" border="5">
<tr>
<td>
<s:textfield name="id" label="学号" maxLength="16"></s:textfield>
</td>
<td>
<s:textfield name="name" label="姓名" maxLength="16"/>
</td>
<td>
<s:select name="sex" label="性别" list="{'男','女'}"/>
</td>
<td>
<s:textfield name="age" label="年龄"/>
</td>
<td>
<s:textfield name="weight" label="体重"/>
</td>
<td colspan="2">
<s:submit value="提交"/>
<s:reset value="清除"/>
</td>
</tr>
</table>
</s:form>
</body>
</html>
（2）deleteMessage.jsp
<%@page import="PO.Stuinfo"%>
<%@page import="java.util.ArrayList"%>
<%@page contentType="text/html" pageEncoding="UTF-8"%>
<%@taglib prefix="s" uri="/struts-tags"%>
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title><s:text name="学生信息管理系统-删除"/></title>
</head>
<body bgcolor="pink">
<s:div align="center">
<hr color="red"/>
<br/>
<table align="center" width="80%">
<tr>
<td width="25%">
<s:a href="http://localhost:8080/ch15/student/lookMessage.jsp">查看学生信息</s:a>
</td>
<td width="25%">
<s:a href="http://localhost:8080/ch15/student/addMessage.jsp">添加学生信息</s:a>
</td>
<td width="25%">
<s:a href="http://localhost:8080/ch15/student/findMessage.jsp">修改学生信息</s:a>
</td>
<td width="25%">
删除学生信息
</td>
</tr>
</table>
<br/>
<hr color="red"/>
<br/><br/><br/>
<font size="5">删除学生信息</font>
</s:div>
<s:form action="deleteMessageAction" method="post">
<table align="center" width="40%" border="5">
<tr>
<td>
请选择要删除学生的学号：
</td>
<td>
<select name="id">
<%
ArrayList list=(ArrayList)session.getAttribute("allInfo");
if(list.isEmpty()){
%>
<option value="null">null</option>
<%
}else{
for(int i=0;i<list.size();i++){
Stuinfo info=(Stuinfo)list.get(i);
%>
<option value="<%=info.getId()%>"><%=info.getId()%></option>
<%
}
}
%>
</select>
</td>
<td>
<s:submit value="确定"></s:submit>
</td>
</tr>
</table>
</s:form>
</body>
</html>
（3）findMessage.jsp
<%@page import="java.util.ArrayList"%>
<%@page import="PO.Stuinfo"%>
<%@page contentType="text/html" pageEncoding="UTF-8"%>
<%@taglib prefix="s" uri="/struts-tags" %>
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title><s:text name="学生信息管理系统-修改"/></title>
</head>
<body bgcolor="pink">
<s:div align="center">
<hr color="red"/>
<br/>
<table align="center" width="80%">
<tr>
<td width="25%">
<s:a href="http://localhost:8080/ch15/student/lookMessage.jsp">查看学生信息</s:a>
</td>
<td width="25%">
<s:a href="http://localhost:8080/ch15/student/addMessage.jsp">添加学生信息</s:a>
</td>
<td width="25%">
修改学生信息
</td>
<td width="25%">
<s:a href="http://localhost:8080/ch15/student/deleteMessage.jsp">删除学生信息</s:a>
</td>
</tr>
</table>
<br/>
<hr color="red"/>
<br/><br/><br/>
<font size="5">修改学生信息</font>
</s:div>
<s:form action="findMessageAction" method="post">
<table align="center" width="40%" border="5">
<tr>
<td>
请选择要修改学生的学号：
</td>
<td>
<select name="id">
<%
ArrayList list=(ArrayList)session.getAttribute("allInfo");
if(list.isEmpty()){
%>
<option value="null">null</option>
<%
}else{
for(int i=0;i<list.size();i++){
Stuinfo info=(Stuinfo)list.get(i);
%>
<option value="<%=info.getId()%>"><%=info.getId()%></option>
<%
}
}
%>
</select>
</td>
<td>
<s:submit value="确定"></s:submit>
</td>
</tr>
</table>
</s:form>
</body>
</html>
（4）index.jsp
<%@page contentType="text/html" pageEncoding="UTF-8"%>
<%@taglib prefix="s" uri="/struts-tags" %>
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title><s:text name="基于SH的学生信息管理-起始页"/></title>
</head>
<body bgcolor="#CCCCFF">
<s:div align="center">
<br/><br/><br/><br/><br/>
<font color="black" size="6">基于Struts2+Hibernate的学生信息管理系统实例，可对学生信息进行增、删、改、查！</font>
<br/><br/><br/>
<s:a href="lookMessageAction"><font color="blue" size="6">点此进入</font></s:a>
</s:div>
</body>
</html>
（5）lookMessage.jsp
<%@page contentType="text/html" pageEncoding="UTF-8" import="java.util.ArrayList,PO.Stuinfo"%>
<%@taglib prefix="s" uri="/struts-tags" %>
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>学生信息管理系统-查看</title>
</head>
<body bgcolor="pink">
<s:div align="center">
<hr color="red"/>
<br/>
<table align="center" width="80%">
<tr>
<td width="25%">
查看学生信息
</td>
<td width="25%">
<s:a href="http://localhost:8080/ch15/student/addMessage.jsp">添加学生信息</s:a>
</td>
<td width="25%">
<s:a href="http://localhost:8080/ch15/student/findMessage.jsp">修改学生信息</s:a>
</td>
<td width="25%">
<s:a href="http://localhost:8080/ch15/student/deleteMessage.jsp">删除学生信息</s:a>
</td>
</tr>
</table>
<br/>
<hr color="red"/>
<br/><br/><br/>
<span>你要查询的数据表中共有<%=request.getSession().getAttribute("count")%>人</span>
</s:div>
<table align="center" width="80%" border="5">
<tr>
<th>记录条数</th>
<th>学号</th>
<th>姓名</th>
<th>性别</th>
<th>年龄</th>
<th>体重</th>
</tr>
<%
ArrayList list=(ArrayList)session.getAttribute("allInfo");
if(list.isEmpty()){
%>
<tr>
<td align="center">
<span>暂无学生信息!</span>
</td>
</tr>
<%
}else{
for(int i=0;i<list.size();i++){
Stuinfo info=(Stuinfo)list.get(i);
%>
<tr>
<td align="center"><%=i+1%></td>
<td><%=info.getId()%></td>
<td><%=info.getName()%></td>
<td><%=info.getSex()%></td>
<td><%=info.getAge()%></td>
<td><%=info.getWeight()%></td>
</tr>
<%
}
}
%>
</table>
</body>
</html>
（6）updateMessage.jsp
<%@page import="PO.Stuinfo"%>
<%@page import="java.util.ArrayList"%>
<%@page contentType="text/html" pageEncoding="UTF-8"%>
<%@taglib prefix="s" uri="/struts-tags" %>
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>学生信息管理系统-修改</title>
</head>
<body bgcolor="pink">
<s:div align="center">
<hr color="red"/>
<br/>
<table align="center" width="80%">
<tr>
<td width="25%">
<s:a href="http://localhost:8080/ch15/student/lookMessage.jsp">查看学生信息</s:a>
</td>
<td width="25%">
<s:a href="http://localhost:8080/ch15/student/addMessage.jsp">添加学生信息</s:a>
</td>
<td width="25%">
修改学生信息
</td>
<td width="25%">
<s:a href="http://localhost:8080/ch15/student/deleteMessage.jsp">删除学生信息</s:a>
</td>
</tr>
</table>
<br/>
<hr color="red"/>
<br/><br/><br/>
<font size="5">修改学生信息</font>
</s:div>
<s:form action="updateMessageAction" method="post">
<table align="center" width="30%" bgcolor="gray" border="5">
<%
ArrayList list=(ArrayList)session.getAttribute("oneInfo");
Stuinfo info=(Stuinfo)list.get(0);
%>
<tr>
<td>
学号
</td>
<td>
<input name="id" value="<%=info.getId()%>" readonly="readonly"/>
</td>
</tr>
<tr>
<td>
姓名
</td>
<td>
<input name="name" value="<%=info.getName()%>"/>
</td>
</tr>
<tr>
<td>
性别
</td>
<td>
<input name="sex" value="<%=info.getSex()%>"/>
</td>
</tr>
<tr>
<td>
年龄
</td>
<td>
<input name="age" value="<%=info.getAge()%>"/>
</td>
</tr>
<tr>
<td>
体重
</td>
<td>
<input name="weight" value="<%=info.getWeight()%>"/>
</td>
</tr>
<tr>
<td colspan="2">
<s:submit value="提交"></s:submit>
</td>
</tr>
<tr>
<td align="center" colspan="2">
<s:a href="http://localhost:8080/ch15/student/findMessage.jsp">返回</s:a>
</td>
</tr>
</table>
</s:form>
</body>
</html>
12.web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app version="3.0" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd">
<filter>
<filter-name>struts2</filter-name>
<filter-class>org.apache.struts2.dispatcher.FilterDispatcher</filter-class>
</filter>
<filter-mapping>
<filter-name>struts2</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<session-config>
<session-timeout>
30
</session-timeout>
</session-config>
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
</web-app>