项目的整体结构如下：

项目用到的所有jar包如下：

项目所有的类和文件如下：

1.src/beans.xml:

<? xml version= "1.0" encoding= "UTF-8" ?>  < beans xmlns= "http://www.springframework.org/schema/beans"      xmlns:xsi= "http://www.w3.org/2001/XMLSchema-instance"      xmlns:context ="http://www.springframework.org/schema/context"      xmlns:aop= "http://www.springframework.org/schema/aop"      xmlns:tx= "http://www.springframework.org/schema/tx"      xsi:schemaLocation ="http://www.springframework.org/schema/beans          http://www.springframework.org/schema/beans/spring-beans.xsd          http://www.springframework.org/schema/context          http://www.springframework.org/schema/context/spring-context.xsd          http://www.springframework.org/schema/aop              http://www.springframework.org/schema/aop/spring-aop.xsd             http://www.springframework.org/schema/tx         http://www.springframework.org/schema/tx/spring-tx.xsd " >               <context:annotation-config ></context:annotation-config >      <tx:annotation-driven transaction-manager ="transactionManager" />                    <bean id = "userService" class= "service.UserServiceImpl">        </bean >               <bean id = "userDao" class= "dao.UserDaoImpl">        </bean >               <bean id = "userAction" class= "action.UserAction">        </bean >               <bean id = "dataSource" class= "org.apache.commons.dbcp.BasicDataSource" >            <property name = "driverClassName" value= "com.mysql.jdbc.Driver" />            <property name = "url" value= "jdbc:mysql://localhost:3306/spring" />            <property name = "username" value= "root"/>            <property name = "password" value= "*******"/>        </bean >        <bean id = "transactionManager"            class = "org.springframework.orm.hibernate4.HibernateTransactionManager" >         <property name = "sessionFactory" ref= "sessionFactory" />        </bean >               <bean id = "sessionFactory" class= "org.springframework.orm.hibernate4.LocalSessionFactoryBean" >           <property name = "dataSource" ref= "dataSource" />           <property name = "hibernateProperties">                <props >                   <prop key= "hibernate.dialect" >org.hibernate.dialect.MySQLDialect </prop >                   <prop key = "hibernate.show_sql"> true</ prop>                  <prop key = "hibernate.hbm2ddl.auto"> update</ prop>                    <prop key = "hibernate.format_sql"> true</ prop>                </props >           </property >                   <property name = "packagesToScan">                <list >                   <value >entity </value >               </list >           </property >         </bean >            <!-- 配置HibernateTemplate Bean -->      <bean id = "hibernateTemplate" class= "org.springframework.orm.hibernate4.HibernateTemplate" >        <property name = "sessionFactory" ref= "sessionFactory" ></property >      </bean >         </ beans>

2.src/log4j.properites:

### direct log messages to stdout ###  log4j.appender.stdout= org.apache.log4j.ConsoleAppender  log4j.appender.stdout.Target= System.out  log4j.appender.stdout.layout= org.apache.log4j.PatternLayout  log4j.appender.stdout.layout.ConversionPattern= %d{ABSOLUTE} %5p %c {1}:%L - %m%n    ### direct messages to file hibernate.log ###  #log4j.appender.file=org.apache.log4j.FileAppender  #log4j.appender.file.File=hibernate.log  #log4j.appender.file.layout=org.apache.log4j.PatternLayout  #log4j.appender.file.layout.ConversionPattern=%d{ABSOLUTE} %5p %c{1}:%L - %m%n    ### set log levels - for more verbose logging change 'info' to 'debug' ###    log4j.rootLogger= warn, stdout    #log4j.logger.org.hibernate=info  #log4j.logger.org.hibernate=debug    ### log HQL query parser activity  #log4j.logger.org.hibernate.hql.ast.AST=debug    ### log just the SQL  #log4j.logger.org.hibernate.SQL=debug    ### log JDBC bind parameters ###  #log4j.logger.org.hibernate.type=info  #log4j.logger.org.hibernate.type=debug    ### log schema export/update ###  log4j.logger.org.hibernate.tool.hbm2ddl= debug    ### log HQL parse trees  #log4j.logger.org.hibernate.hql=debug    ### log cache activity ###  #log4j.logger.org.hibernate.cache=debug    ### log transaction activity  #log4j.logger.org.hibernate.transaction=debug    ### log JDBC resource acquisition  #log4j.logger.org.hibernate.jdbc=debug    ### enable the following line if you want to track down connection ###  ### leakages when using DriverManagerConnectionProvider ###  #log4j.logger.org.hibernate.connection.DriverManagerConnectionProvider=trace

3.src/struts.xml:

<? xml version= "1.0" encoding = "UTF-8" ?>  <! DOCTYPE struts PUBLIC        "-//Apache Software Foundation//DTD Struts Configuration 2.3//EN"        "http://struts.apache.org/dtds/struts-2.3.dtd" >   < struts >       <package name = "reg" extends = "struts-default">             <action name = "user" class = "action.UserAction">                 <result name = "success" >/ reg/regSuccess.jsp </ result>                 <result name = "input" >/ reg/regFail.jsp </ result>             </action >           </package >   </ struts >

4.WebContent/reg/reg.jsp:

<%@ page language = "java" contentType= "text/html; charset=utf-8"      pageEncoding= "utf-8"%>  <! DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN""http://www.w3.org/TR/html4/loose.dtd" >  < html>  < head>  < meta http-equiv= "Content-Type" content = "text/html; charset=utf-8">  < title> Insert title here</ title>  </ head>  < body>        <form action = "user.action" method= "post">< br>              uname: <input type = "text" name= "uname"/>< br>              pwd:< input type= "password" name = "pwd"/>< br>              repwd< input type= "password" name = "repwd"/>< br>             提交： <input type = "submit" value= "提交 "/>        </form >  </ body>  </ html>

5.WebContent/reg/regSuccess.jsp:

<%@ page language = "java" contentType= "text/html; charset=utf-8"      pageEncoding= "utf-8"%>  <! DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN""http://www.w3.org/TR/html4/loose.dtd" >  < html>  < head>  < meta http-equiv= "Content-Type" content = "text/html; charset=utf-8">  < title> Insert title here</ title>  </ head>  < body>        <h1 >注册成功 </h1 >  </ body>  </ html>

6.WebContent/reg/regFail.jsp:

<%@ page language = "java" contentType= "text/html; charset=utf-8"      pageEncoding= "utf-8"%>  <! DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN""http://www.w3.org/TR/html4/loose.dtd" >  < html>  < head>  < meta http-equiv= "Content-Type" content = "text/html; charset=utf-8">  < title> Insert title here</ title>  </ head>  < body>        <h1 >注册失败：用户名重复 </h1 >  </ body>  </ html>

7.WEB-INF/web.xml:

<? xml version= "1.0" encoding= "UTF-8" ?>  < web-app xmlns:xsi= "http://www.w3.org/2001/XMLSchema-instance" xmlns= "http://java.sun.com/xml/ns/javaee" xsi:schemaLocation ="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" id= "WebApp_ID" version = "3.0">    < display-name >SSHJunior </display-name >    < welcome-file-list >      <welcome-file >index.html </welcome-file >      <welcome-file >index.htm </welcome-file >      <welcome-file >index.jsp </welcome-file >      <welcome-file >default.html </welcome-file >      <welcome-file >default.htm </welcome-file >      <welcome-file >default.jsp </welcome-file >    </ welcome-file-list >    < filter>      <filter-name >struts2 </filter-name >      < filter-class> org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class >    </ filter>    < filter-mapping >      <filter-name >struts2 </filter-name >      <url-pattern >/* </url-pattern >    </ filter-mapping >       < listener>          < listener-class> org.springframework.web.context.ContextLoaderListener </listener-class >      </listener >      <context-param >        <param-name >contextConfigLocation </param-name >              <!-- 默认找/WEB-INF/applicationContext.xml -->        <param-value >classpath:beans.xml </param-value >      </context-param >  </ web-app>

8.entity.User.jsp:

package entity;  import javax.persistence.Entity;  import javax.persistence.GeneratedValue;  import javax.persistence.Id;  @Entity  public class User {       private int id;       private String uname;       private String pwd;       @Id       @GeneratedValue       public int getId() {            return id;       }       public void setId(int id) {            this.id = id;       }       public String getUname() {            return uname;       }       public void setUname(String uname) {            this.uname = uname;       }       public String getPwd() {            return pwd;       }       public void setPwd(String pwd) {            this.pwd = pwd;       }        }

9.service.UserService.java:

package service;    import entity.User;    public interface UserService {          boolean exists(User user);          void add(User user);    }

10.service.UserServiceImpl.java:

package service;    import javax.annotation.Resource;  import org.springframework.transaction.annotation.Transactional ;    import dao.UserDao;  import entity.User;    public class UserServiceImpl implements UserService {               private UserDao userDao;                        public UserDao getUserDao() {              return userDao;       }               @Resource        public void setUserDao(UserDao userDao) {              this. userDao = userDao;       }          /* (non-Javadoc)        * @see service.UserService#exists(entiey.User)        */        @Override        public boolean exists(User user) {              return userDao.checkUserExistsByUname( user.getUname());                 }          /* (non-Javadoc)        * @see service.UserService#add(entiey.User)        */        @Override        @Transactional        public void add(User user) {              userDao.save( user);        }  }

11.dao.UserDao.java:

package dao;    import entity.User;    public interface UserDao {          boolean checkUserExistsByUname(String uname);          void save(User user);    }

12.dao.UserDaoImpl.java:

package dao;  import java.util.List;  import javax.annotation.Resource;  import org.springframework.orm.hibernate4.HibernateTemplate;  import entity.User;  public class UserDaoImpl implements UserDao {       private HibernateTemplate hibernateTemplate;                   public HibernateTemplate getHibernateTemplate() {            return hibernateTemplate;       }             @Resource       public void setHibernateTemplate(HibernateTemplate hibernateTemplate) {            this.hibernateTemplate = hibernateTemplate;       }                   /* (non-Javadoc)       * @see dao.UserDao#checkUserExistsByUname(java.lang.String)       */       @Override       public boolean checkUserExistsByUname(String uname){            //String sql = "select count(*) from User where uname = '"+uname+"'";            String sql = "from User where uname = '"+uname+"'";            List list = (List) hibernateTemplate.find(sql);            if(list!=null&&list.size()>0){                 return true;            }                      return false;       }             /* (non-Javadoc)       * @see dao.UserDao#save(entiey.User)       */       @Override       public void save(User user){            hibernateTemplate.save(user);       }  }

13.action.UserAction.java:

package action;      import javax.annotation.Resource;    import org.springframework.context.annotation.Scope;    import com.opensymphony.xwork2.ActionSupport;    import entity.User;  import service.UserService;  @Scope( "prototype")  public class UserAction extends ActionSupport {               private String uname;        private String pwd;        private String repwd;        private UserService userService;                 public String getUname() {              return uname;       }          public void setUname(String uname) {              this. uname = uname;       }          public String getPwd() {              return pwd;       }          public void setPwd(String pwd) {              this. pwd = pwd;       }            public String getRepwd() {              return repwd;       }          public void setRepwd(String repwd) {              this. repwd = repwd;       }          public UserService getUserService() {              return userService;       }               @Resource        public void setUserService(UserService userService) {              this. userService = userService;       }          @Override        public String execute() throws Exception {             User user = new User();              user.setUname( uname);              user.setPwd( pwd);              if( userService.exists( user)){                   return INPUT;             }              userService.add( user);              return SUCCESS;       }  }

来自：http://my.oschina.net/u/2430057/blog/539742