基于S2SH的注册登录系统练习Demo

原 作者 朱新全 | 发表于 | 分类于 2014级

这里通过一个小的登录注册系统练习使用整套的S2SH框架，虽然整体架构不大，但也基本可以说明整个S2SH框架的组成部分和工作流程。

这里我会首先摆出整个系统的组成部分以及源码，然后大致浏览一下这个框架各个组成部分的工作流程，最后说一下我所遇到过的坑！

S2SH就是Struts2、Spring以及Hibernate三大框架的整合，具体的各个框架的工作原理自行搜索，这里只是一个简单的说明。

先看一下整个框架整合的源码的结构：

这是源码中使用到的action、model、service、dao的部分：

这里写图片描述

下面是用到的几个页面：

这里写图片描述

在整合使用S2SH框架时，必须使用到许多的jar包，jar包是非常重要的，在很多情况下都会出现jar的依赖不足的情况，所以，我先贴出maven中pom.xml的内容，方便jar包的下载。

<dependencies>
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>3.8.1</version>
      <scope>test</scope>
    </dependency>

    <dependency>
      <groupId>javax.servlet</groupId>
      <artifactId>javax.servlet-api</artifactId>
      <version>3.1.0</version>
    </dependency>

    <!--aspect包的导入-->
    <dependency>
      <groupId>org.aspectj</groupId>
      <artifactId>aspectjweaver</artifactId>
      <version>1.8.5</version>
    </dependency>
    <dependency>
      <groupId>org.aspectj</groupId>
      <artifactId>aspectjrt</artifactId>
      <version>1.8.5</version>
    </dependency>

    <!--spring包的导入 -->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-test</artifactId>
      <version>4.1.6.RELEASE</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-context</artifactId>
      <version>4.1.6.RELEASE</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-core</artifactId>
      <version>4.1.6.RELEASE</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-beans</artifactId>
      <version>4.1.6.RELEASE</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-web</artifactId>
      <version>4.1.6.RELEASE</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-orm</artifactId>
      <version>4.1.6.RELEASE</version>
    </dependency>

    <!--hibernate包的导入-->
    <dependency>
      <groupId>org.hibernate</groupId>
      <artifactId>hibernate-entitymanager</artifactId>
      <version>4.3.5.Final</version>
    </dependency>

    <!-- https://mvnrepository.com/artifact/org.hibernate/hibernate-ehcache -->
    <dependency>
      <groupId>org.hibernate</groupId>
      <artifactId>hibernate-ehcache</artifactId>
      <version>4.3.8.Final</version>
    </dependency>


    <!-- https://mvnrepository.com/artifact/log4j/log4j -->
    <dependency>
      <groupId>log4j</groupId>
      <artifactId>log4j</artifactId>
      <version>1.2.17</version>
    </dependency>


    <dependency>
      <groupId>org.hibernate</groupId>
      <artifactId>hibernate-core</artifactId>
      <version>4.3.5.Final</version>
    </dependency>

    <dependency>
      <groupId>org.hibernate</groupId>
      <artifactId>hibernate-c3p0</artifactId>
      <version>4.3.5.Final</version>
    </dependency>

    <dependency>
      <groupId>mysql</groupId>
      <artifactId>mysql-connector-java</artifactId>
      <version>5.1.18</version>
    </dependency>

    <!-- https://mvnrepository.com/artifact/commons-dbcp/commons-dbcp -->
    <dependency>
      <groupId>commons-dbcp</groupId>
      <artifactId>commons-dbcp</artifactId>
      <version>1.4</version>
    </dependency>

    <!-- https://mvnrepository.com/artifact/jstl/jstl -->
    <dependency>
      <groupId>jstl</groupId>
      <artifactId>jstl</artifactId>
      <version>1.2</version>
    </dependency>


    <!--struts包的引入-->
    <dependency>
      <groupId>org.apache.struts</groupId>
      <artifactId>struts2-core</artifactId>
      <version>2.3.20.1</version>
    </dependency>

    <!--struts-spring包的引入-->
    <dependency>
      <groupId>org.apache.struts</groupId>
      <artifactId>struts2-spring-plugin</artifactId>
      <version>2.3.16.3</version>
    </dependency>

    <!--struts2中的json插件-->
    <dependency>
      <groupId>org.apache.struts</groupId>
      <artifactId>struts2-json-plugin</artifactId>
      <version>2.3.16.3</version>
    </dependency>
    <!--struts2测试插件的引入-->
    <dependency>
      <groupId>org.apache.struts</groupId>
      <artifactId>struts2-junit-plugin</artifactId>
      <version>2.3.20</version>
      <scope>test</scope>
    </dependency>
    <dependency>
      <groupId>javax.servlet</groupId>
      <artifactId>jsp-api</artifactId>
      <version>2.0</version>
      <scope>test</scope>
    </dependency>

  </dependencies>

接着，我们看一下数据库，这个数据库很简单，数据库名为test，就一张USERS表，表中的字段如下：

这里写图片描述

创建数据库表的SQL如下：

CREATE TABLE `USERS` (
  `id` varchar(36) NOT NULL,
  `user_name` varchar(50) NOT NULL,
  `u_password` varchar(32) NOT NULL,
  `u_email` varchar(100) DEFAULT NULL,
  PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8

然后，我们创建跟数据库对应的实体类，这里就为Hibernate做准备了，实体类Users如下：

package model;

import java.io.Serializable;

/**
 * Created by zhuxinquan on 16-12-1.
 */
public class Users implements Serializable{
    private static final long serialVersionUID = -4414249636229253339L;

    private String id;

    private String name;

    private String password;

    private String email;

    public String getEmail() {
        return email;
    }

    public void setEmail(String email) {
        this.email = email;
    }

    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 getPassword() {
        return password;
    }

    public void setPassword(String password) {
        this.password = password;
    }

    @Override
    public String toString() {
        return "Users{" +
                "id='" + id + '\'' +
                ", name='" + name + '\'' +
                ", password='" + password + '\'' +
                ", email='" + email + '\'' +
                '}';
    }
}

然后创建Hibernate映射文件User.hbm.xml如下：

<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<hibernate-mapping>
    <class name="model.Users" table="USERS" >
        <comment></comment>
        <id name="id" type="string">
            <column name="id" length="36" />
            <generator class="assigned" />
        </id>
        <property name="name" type="string">
            <column name="user_name" length="50" not-null="true">
                <comment></comment>
            </column>
        </property>
        <property name="password" type="string">
            <column name="u_password" length="32">
                <comment></comment>
            </column>
        </property>
        <property name="email" type="string">
            <column name="u_email" length="100">
                <comment></comment>
            </column>
        </property>
    </class>
</hibernate-mapping>

映射文件实现了持久化类和数据库表之间的映射，即对象和关系数据库之间的映射，方便了对数据库的操作。

接下来，是dao层和service层。

dao层的接口IUserDao如下：

package dao;

import model.Users;

import java.util.List;

/**
 * Created by zhuxinquan on 16-12-1.
 */
public interface IUserDao {
    void save(Users user) throws Exception;
    List<Users> findAll() throws Exception;
    Users getByName(String userName) throws Exception;
    Users getByNameAndPwd(String userName, String userPwd) throws Exception;
}

dao层的实现UserDaoImpl如下：

package dao.impl;


import dao.IUserDao;
import model.Users;
import org.hibernate.Session;
import org.hibernate.Transaction;
import org.springframework.orm.hibernate4.support.HibernateDaoSupport;

import java.util.List;
import java.util.UUID;

public class UserDaoImpl extends HibernateDaoSupport implements IUserDao {
    public void save(Users user) throws Exception {
        System.out.println("UserDao Save()");
        String uId = UUID.randomUUID().toString();
        user.setId(uId);
        System.out.println(user);
        Session session = getSessionFactory().openSession();
        Transaction transaction = session.beginTransaction();
        session.save(user);
        transaction.commit();
        if(session.isOpen()){
            session.close();
        }
//      HibernateTemplate hibernateTemplate = this.getHibernateTemplate();
//      hibernateTemplate.save(user);
//      hibernateTemplate.flush();
        System.out.println("Save OK");
    }
    public List<Users> findAll() throws Exception {
        String hql = "FROM Users";

//      Session session = null;
//      Users user = null;
//      try {
//          session = getSessionFactory().openSession();
//          Transaction transaction = session.beginTransaction();
//          user = session.find(hql);
//          transaction.commit();
//      } finally {
//          session.close();
//      }
        System.out.println("UserDao findAll()");
        ///////////////////
        List<Users> userList = null;
        try{
            userList = (List<Users>) this.getHibernateTemplate().find(hql);
        }catch (Exception e){
            e.printStackTrace();
        }

//      List<Users> userList = getHibernateTemplate().find(hql);
        System.out.println(userList);
        return userList;
    }
    public Users getByName(String userName) throws Exception {
        String hql = "FROM Users WHERE name=?";
        Session session = null;
        Users user = null;
        try {
            session = getSessionFactory().openSession();
            Transaction transaction = session.beginTransaction();
            //数据库暂时为设置主键，存在多个用户名相同的情况，此处仅仅判断是否已被占用，返回一个即可证明已经占用
            //user = (Users)session.createQuery(hql).setParameter(0, userName).list().get(0);
                        user = (Users)session.createQuery(hql).setParameter(0, userName).uniqueResult();
            transaction.commit();
        }catch (Exception e){
            e.printStackTrace();
        }finally {
            session.close();
        }
        System.out.println("Check return User: " + user);
        return user;
    }

    public Users getByNameAndPwd(String userName, String userPwd) throws Exception {
        String hql = "FROM Users WHERE name=? AND password=?";
        Session session = null;
        Users user = null;
        try {
            session = getSessionFactory().openSession();
            Transaction transaction = session.beginTransaction();
            user = (Users)session.createQuery(hql)
                        .setParameter(0, userName)
                        .setParameter(1, userPwd)
                        .uniqueResult();
            transaction.commit();
            System.out.println("getByNameAndPwd" + user);
        } finally {
            session.close();
        }
        return user;
    }

}

上面的代码可以看到有好多注释的地方和打印输出的地方，注释的部分有的是由于Hibernate操作数据库的方式不同，需要非常注意的地方是Hibernate的版本问题，由于版本的不同会导致很多不可思议的错误，这里我使用的都是hibernate4.

下面是service层的一些操作，首先是service的接口IUserService：

package service;


import model.Users;

import java.util.List;

public interface IUserService {
    void addUser(Users user) throws Exception;
    Users getUserByNameAndPassword(String userName, String userPassword) throws Exception;
    boolean isNameValid(String userName) throws Exception;
    List<Users> findAll() throws Exception;
}

下面是IUserService接口的实现类UserServiceImpl：

package service.impl;

import dao.IUserDao;
import model.Users;
import service.IUserService;

import java.util.List;

public class UserServiceImpl implements IUserService {

    private IUserDao userDao;

    public void addUser(Users user) throws Exception {
        if(user == null || user.getName() == null || user.getName().equals("")
                || user.getPassword() == null || user.getPassword().equals("")) {
            return;
        }
        userDao.save(user);
    }

    public List<Users> findAll() throws Exception {
        return userDao.findAll();
    }

    public Users getUserByNameAndPassword(String userName, String userPassword) throws Exception {
        Users user = null;
        if(userName == null || userName.trim().equals("")
                || userPassword == null || userPassword.trim().equals("")) {
            return null;
        }
        user =  userDao.getByNameAndPwd(userName, userPassword);
        System.out.println("UserServiceImpl" + user);
        return user;
    }

    public boolean isNameValid(String userName) throws Exception {
        Users user = userDao.getByName(userName);
        if(user == null) {
            return true;
        } else {
            return false;
        }
    }

    public void setUserDao(IUserDao userDao) {
        this.userDao = userDao;
    }

}

后面是我们需要进行请求处理的action的部分，这里使用到了注册、登录、用户列表、检查用户名是否可用以及错误跳转的请求源码如下：

CheckUser.java

package action;

import com.opensymphony.xwork2.ActionSupport;
import model.Users;
import org.apache.log4j.Logger;
import org.apache.struts2.ServletActionContext;
import org.apache.struts2.interceptor.ServletRequestAware;
import service.IUserService;

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

/**
 * Created by zhuxinquan on 16-12-2.
 */
public class CheckUser extends ActionSupport implements ServletRequestAware {
    Logger logger = Logger.getLogger(UserAction.class);

    private IUserService userService;

    protected HttpServletRequest servletRequest = null;

    private String userName;

    private String password;

    private String email;

    private Users user;

    public Logger getLogger() {
        return logger;
    }

    public String checkUser() throws Exception {
        String userName = servletRequest.getParameter("userName");
        boolean isNameValid = userService.isNameValid(userName);
        HttpServletResponse response = ServletActionContext.getResponse();
        response.setHeader("Cache-Control", "no-store");
        response.setHeader("Pragma", "no-cache");
        response.setDateHeader("Expires", 0);
        response.setContentType("text/html");
        response.getWriter().write("{\"isNameValid\":" + isNameValid + "}");
        return null;
    }

    public void setLogger(Logger logger) {
        this.logger = logger;
    }

    public IUserService getUserService() {
        return userService;
    }

    public void setUserService(IUserService userService) {
        this.userService = userService;
    }

    public String getUserName() {
        return userName;
    }

    public void setUserName(String userName) {
        this.userName = userName;
    }

    public String getPassword() {
        return password;
    }

    public void setPassword(String password) {
        this.password = password;
    }

    public String getEmail() {
        return email;
    }

    public void setEmail(String email) {
        this.email = email;
    }

    public Users getUser() {
        return user;
    }

    public void setUser(Users user) {
        this.user = user;
    }

    public void setServletRequest(HttpServletRequest httpServletRequest) {

    }
}

InputAction.java

package action;

import com.opensymphony.xwork2.ActionSupport;

/**
 * Created by zhuxinquan on 16-12-2.
 */
public class InputAction extends ActionSupport {
    public String input() {
        return INPUT;
    }
}

ListAction.java

package action;

import com.opensymphony.xwork2.ActionSupport;
import model.Users;
import org.apache.log4j.Logger;
import org.apache.struts2.interceptor.ServletRequestAware;
import service.IUserService;

import javax.servlet.http.HttpServletRequest;
import java.util.List;

/**
 * Created by zhuxinquan on 16-12-2.
 */
public class ListAction extends ActionSupport implements ServletRequestAware {

    Logger logger = Logger.getLogger(UserAction.class);

    private IUserService userService;

    protected HttpServletRequest servletRequest = null;

    private String userName;

    private String password;

    private String email;

    private Users user;

    public Logger getLogger() {
        return logger;
    }

    public void setLogger(Logger logger) {
        this.logger = logger;
    }

    public IUserService getUserService() {
        return userService;
    }

    public void setUserService(IUserService userService) {
        this.userService = userService;
    }

    public String getUserName() {
        return userName;
    }

    public void setUserName(String userName) {
        this.userName = userName;
    }

    public String getPassword() {
        return password;
    }

    public void setPassword(String password) {
        this.password = password;
    }

    public String getEmail() {
        return email;
    }

    public void setEmail(String email) {
        this.email = email;
    }

    public Users getUser() {
        return user;
    }

    public void setUser(Users user) {
        this.user = user;
    }

    public void setServletRequest(HttpServletRequest request) {
        this.servletRequest = request;
    }



    public String list() throws Exception {
        List<Users> userList = null;
        try {
            userList = userService.findAll();
        } catch (RuntimeException e) {
            logger.error(e);
        }
        servletRequest.setAttribute("userList", userList);
        return "userlist";
    }
}

LoginAction.java

package action;

import com.opensymphony.xwork2.ActionSupport;
import model.Users;
import org.apache.log4j.Logger;
import org.apache.struts2.interceptor.ServletRequestAware;
import service.IUserService;

import javax.servlet.http.HttpServletRequest;

/**
 * Created by zhuxinquan on 16-12-2.
 */
public class LoginAction extends ActionSupport implements ServletRequestAware {
    Logger logger = Logger.getLogger(UserAction.class);
    private IUserService userService;

    protected HttpServletRequest servletRequest = null;

    private String userName;

    private String password;

    private String email;

    private Users user;

    public void setServletRequest(HttpServletRequest httpServletRequest) {
        this.servletRequest=httpServletRequest;
    }

    public void addError(String errorKey) {
        addActionError(getText(errorKey));
    }

    public String login() throws Exception {
        Users user = null;

        System.out.println("LoginAction:login");

        user = userService.getUserByNameAndPassword(userName, password);
        System.out.println("login" + user);

        if(user == null) {
            addError("errors.userNameOrPassword");
            return INPUT;
        }
        setUser(user);
        return SUCCESS;
    }

    public IUserService getUserService() {
        return userService;
    }

    public void setUserService(IUserService userService) {
        this.userService = userService;
    }

    public String getUserName() {
        return userName;
    }

    public void setUserName(String userName) {
        this.userName = userName;
    }

    public String getPassword() {
        return password;
    }

    public void setPassword(String password) {
        this.password = password;
    }

    public String getEmail() {
        return email;
    }

    public void setEmail(String email) {
        this.email = email;
    }

    public Users getUser() {
        return user;
    }

    public void setUser(Users user) {
        this.user = user;
    }
}

RegisterAction.java

package action;

import com.opensymphony.xwork2.ActionSupport;
import model.Users;
import org.apache.struts2.ServletActionContext;
import org.apache.struts2.interceptor.ServletRequestAware;
import service.IUserService;

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

/**
 * Created by zhuxinquan on 16-12-2.
 */
public class RegistAction extends ActionSupport implements ServletRequestAware {
    private String userName;

    private String password;

    private String email;

    private Users user;

    public String getUserName() {
        return userName;
    }

    public void setUserName(String userName) {
        this.userName = userName;
    }

    public String getPassword() {
        return password;
    }

    public void setPassword(String password) {
        this.password = password;
    }

    public String getEmail() {
        return email;
    }

    public void setEmail(String email) {
        this.email = email;
    }

    public Users getUser() {
        return user;
    }

    public void setUser(Users user) {
        this.user = user;
    }

    private IUserService userService;

    public IUserService getUserService() {
        return userService;
    }

    public void setUserService(IUserService userService) {
        this.userService = userService;
    }

    public String input() {
        System.out.println("Registe Action Input:");
        return INPUT;
    }

    public String checkUser() throws Exception {
        System.out.println("checkUser()");
        String userName = servletRequest.getParameter("userName");
        boolean isNameValid = userService.isNameValid(userName);
        HttpServletResponse response = ServletActionContext.getResponse();
        response.setHeader("Cache-Control", "no-store");
        response.setHeader("Pragma", "no-cache");
        response.setDateHeader("Expires", 0);
        response.setContentType("text/html");
        response.getWriter().write("{\"isNameValid\":" + isNameValid + "}");
        System.out.println(isNameValid);
        return null;
    }

    public String regist() throws Exception {
        System.out.println("in register() action");
        Users user = new Users();
        user.setName(userName);
        user.setPassword(password);
        user.setEmail(email);
        try {
            userService.addUser(user);
        } catch (RuntimeException e) {
            servletRequest.setAttribute("fail", "failure, please re-regist!");
            return INPUT;
        }
        setUser(user);
        System.out.println("register action:" + user);
        return SUCCESS;
    }

    protected HttpServletRequest servletRequest = null;
    public void setServletRequest(HttpServletRequest httpServletRequest) {
        this.servletRequest = httpServletRequest;
    }

}

接下来是比较关键的配置文件的部分了，spring通过依赖注入的方式自动生成并注入Bean的实例。下面是web.xml的内容：

<!DOCTYPE web-app PUBLIC
 "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
 "http://java.sun.com/dtd/web-app_2_3.dtd" >

<web-app xmlns="http://java.sun.com/xml/ns/j2ee"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd"
         version="2.4">
  <display-name>S2SH Demo</display-name>

  <context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>classpath:applicationContext.xml</param-value>
  </context-param>


  <listener>
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
  </listener>

  <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>
</web-app>

在web.xml文件中定义了过滤器、监听器以及一些初始化的参数，接着就是applicationContext.xml的内容，这个是Spring最关键的内容了：
applicationContext.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:tx="http://www.springframework.org/schema/tx" xmlns:aop="http://www.springframework.org/schema/aop"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.0.xsd
           http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.0.xsd
           http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.0.xsd"
       default-autowire="byName" default-lazy-init="true">

    <bean id="userDao" class="dao.impl.UserDaoImpl" />
    <bean id="userService" class="service.impl.UserServiceImpl" />
    <!--<bean id="userService" class="service.impl.UserServiceImpl" >-->
        <!--<property name="userDao" ref="userDao"></property>-->
    <!--</bean>-->

    <!--<bean id="loginAction" class="action.UserAction" scope="prototype" >-->
        <!--<property name="userService" ref="userService"></property>-->
    <!--</bean>-->
    <!--<bean id="userAction" class="action.UserAction" scope="prototype" >-->
        <!--<property name="userService" ref="userService"></property>-->
    <!--</bean>-->
    <!--<bean id="registAction" class="action.UserAction" scope="prototype" >-->
        <!--<property name="userService" ref="userService"></property>-->
    <!--</bean>-->


    <!--<bean id="loginAction" class="action.LoginAction" scope="prototype" />-->
    <!--<bean id="userAction" class="action.UserAction" scope="prototype" />-->
    <!--<bean id="registAction" class="action.RegistAction" scope="prototype" />-->



    <!--数据源定义，使用DBCP连接池-->
    <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"
          destroy-method="close">
        <property name="driverClassName" value="${jdbc.driverClassName}" />
        <property name="url" value="${jdbc.url}" />
        <property name="username" value="${jdbc.username}" />
        <property name="password" value="${jdbc.password}" />
        <property name="maxActive" value="${datasource.maxActive}" />
        <property name="maxIdle" value="${datasource.maxIdle}" />
        <property name="maxWait" value="${datasource.maxWait}" />
        <!--<property name="defaultAutoCommit" value="true" />-->
        <!--<property name="removeAbandoned" value="true" />-->
        <!--<property name="removeAbandonedTimeout" value="60" />-->
        <!--<property name="validationQuery" value="select 1 " />-->
        <!--<property name="testOnBorrow" value="true" />-->
    </bean>

    <!--Hibernate SessionFatory-->
    <bean id="sessionFactory" class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
        <property name="dataSource" ref="dataSource" />
        <property name="mappingDirectoryLocations">
            <list>
                <value>classpath:hbm</value>
            </list>
        </property>
        <property name="hibernateProperties">
            <props>
                <prop key="hibernate.dialect">${hibernate.dialect}</prop>
                <prop key="hibernate.show_sql">${hibernate.show_sql}</prop>
                <prop key="hibernate.cache.use_query_cache">
                    ${hibernate.cache.use_query_cache}
                </prop>
                <prop key="hibernate.cache.region.factory_class">${hibernate.cache.region.factory_class}</prop>
                <prop key="hibernate.cache.provider_class">
                    ${hibernate.cache.provider_class}
                </prop>
                <prop key="hibernate.connection.release_mode">
                    ${hibernate.connection.release_mode}
                </prop>
            </props>
        </property>
    </bean>

    <bean id="hibernateTemplate" class="org.springframework.orm.hibernate4.HibernateTemplate">
        <property name="sessionFactory" ref="sessionFactory"></property>
    </bean>

    <!-- 属性文件读入 -->
    <bean id="propertyConfigurer"
          class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
        <property name="locations">
            <list>
                <value>classpath*:jdbc.properties</value>
                <value>classpath*:hibernate.properties</value>
            </list>
        </property>
    </bean>

    <!-- 事务配置 -->
    <aop:config proxy-target-class="true">
        <aop:advisor
                pointcut="execution(* service..*ServiceImpl.*(..))"
                advice-ref="txAdvice-demo" />
    </aop:config>

    <tx:advice id="txAdvice-demo">
        <tx:attributes>
            <tx:method name="get*" read-only="true" />
            <tx:method name="find*" read-only="true" />
            <tx:method name="is*" read-only="true" />
            <!--<tx:method name="search*" read-only="true" />-->
            <tx:method name="*" propagation="REQUIRED" />
        </tx:attributes>
    </tx:advice>

    <bean id="transactionManager"
          class="org.springframework.orm.hibernate4.HibernateTransactionManager">
        <property name="sessionFactory" ref="sessionFactory" />
    </bean>

</beans>

最后是struts.xml的内容，在struts.xml文件中定义了如下的内容：
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>
    <constant name="struts.custom.i18n.resources" value="MessageResources"></constant>
    <package name="demo" extends="struts-default" namespace="/">

        <interceptors>
            <interceptor-stack name="tokenStack">
                <interceptor-ref name="token">
                    <param name="excludeMethods">input</param>
                </interceptor-ref>
                <interceptor-ref name="defaultStack"/>
            </interceptor-stack>
        </interceptors>

        <!-- results made available to all actions -->
        <global-results>
            <result name="success">/pages/welcome.jsp</result>
        </global-results>

        <action name="input" method="input" class="action.InputAction">
            <result name="input">/login.jsp</result>
        </action>

        <!--<action name="user" method="{1}" class="userAction">-->
            <!--<result name="userlist">/pages/users.jsp</result>-->
        <!--</action>-->

        <action name="login" method="login" class="action.LoginAction">
            <result name="input">/login.jsp</result>
            <result name="userlist">/pages/users.jsp</result>
        </action>

        <action name="user!*" method="{1}" class="action.ListAction">
            <result name="userlist">/pages/users.jsp</result>
        </action>

        <action name="regist!*" method="{1}" class="action.RegistAction">
            <!--<interceptor-ref name="tokenStack"></interceptor-ref>-->
            <!--<result name="invalid.token">/pages/regist.jsp</result>-->
            <result name="input">/pages/regist.jsp</result>
        </action>

    </package>
</struts>

最后就是一些资源文件，包括hibernate.cfg.xml：

<?xml version='1.0' encoding='utf-8'?>
<!DOCTYPE hibernate-configuration PUBLIC
        "-//Hibernate/Hibernate Configuration DTD//EN"
        "http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
    <session-factory>
        <property name="connection.url">jdbc:mysql://localhost:3306/test</property>
        <property name="connection.driver_class">com.mysql.jdbc.Driver</property>
        <property name="connection.username">root</property>
        <property name="connection.password">××××××××××</property>
        <property name="show_sql">true</property>
        <mapping resource="hbm/Users.hbm.xml"/>
        <!-- DB schema will be updated if needed -->
        <!-- <property name="hbm2ddl.auto">update</property> -->
    </session-factory>
</hibernate-configuration>

hibernate.properties:

############## mysql #######################

hibernate.dialect=org.hibernate.dialect.MySQLDialect
hibernate.show_sql=true
hibernate.cache.use_query_cache=true
#hibernate.cache.provider_class=org.hibernate.cache.EhCacheProvider
hibernate.cache.provider_class=net.sf.ehcache.hibernate.EhCacheProvider
hibernate.cache.region.factory_class=org.hibernate.cache.ehcache.EhCacheRegionFactory
hibernate.connection.release_mode=on_close

############## ORACLE #######################

#hibernate.dialect=org.hibernate.dialect.OracleDialect
#hibernate.dialect=org.hibernate.dialect.Oracle9Dialect
#hibernate.dialect=org.hibernate.dialect.OracleDialect
#hibernate.show_sql=true
#hibernate.cache.use_query_cache=true
#hibernate.cache.provider_class=org.hibernate.cache.EhCacheProvider
#hibernate.connection.release_mode=on_close

jdbc.properties

########## DataSource MaxActive ##########
front.datasource.maxActive=200
datasource.maxActive=8
datasource.maxIdle=4
datasource.maxWait=1000

########### MYSQL ############
#jdbc.driverClassName=com.mysql.jdbc.ReplicationDriver
#jdbc.url=jdbc:mysql://172.20.88.207:3306,172.20.88.222:3306/?autoReconnect=true
jdbc.driverClassName=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/test?autoReconnect=true&useUnicode=true&characterEncoding=UTF-8
jdbc.username=root
jdbc.password=**********


###### ORACLE #######
#jdbc.driverClassName=oracle.jdbc.driver.OracleDriver
#jdbc.url=jdbc:oracle:thin:@localhost:1521:chinasei
#jdbc.username=scott
#jdbc.password=tiger

MessageResources.properties

#Generated by ResourceBundle Editor (http://eclipse-rbe.sourceforge.net)

errors.email.format       = Email is an invalid e-mail address
errors.email.required     = Email is required
errors.password.required  = Password is required
errors.userNameOrPassword = user name or password is error.
errors.username.required  = Username is required

lable.text.email    = email
lable.text.login    = login
lable.text.ordinal  = ordinal
lable.text.password = password
lable.text.regist   = regist
lable.text.userName = user name
lable.text.userlist = all users

struts.messages.invalid.token = you are not allowed submit twice.

welcome.info = login success, welcome!

最后就是使用到的页面文件了：

<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<%@ taglib uri="/struts-tags" prefix="s" %>

<a href='<s:url value="/login.jsp"/>'>登录</a>&nbsp;&nbsp;
<a href='<s:url action="regist" method="input"/>'>注册</a>&nbsp;&nbsp;
<%--<a href='<s:url action="/regist" var="input"/>'>注册</a>&nbsp;&nbsp;--%>
<a href='<s:url action="user" method="list"/>'>用户列表</a>

主页定义了3个链接，分别是登录、注册以及用户列表

login.jsp

<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<%@ taglib uri="/struts-tags" prefix="s" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html>
<head>
    <title>login</title>
</head>
<body>
    <s:actionerror/>
    <s:form method="POST" action="login">
        <s:textfield name="userName" key="lable.text.userName"></s:textfield><br />
        <s:password name="password" key="lable.text.password"></s:password><br />
        <s:submit type="input" action="login" method="login" key="lable.text.login"/>
    </s:form>
</body>
</html>

regist.jsp

<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
<%@ taglib uri="/struts-tags" prefix="s" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html>
<head>
    <title><s:text name="lable.text.regist"/></title>
    <script type="text/javascript" src='<c:url value="/scripts/common/jquery.js" />' type="text/javascript"></script>
    <script type="text/javascript">
        function checkUserName() {
            var userNameInput = document.getElementById("userName");
            var userName = userNameInput.value;
            if(jQuery.trim(userName) == "") {
                document.getElementById("userNameSpan").innerHTML = "";
                return false;
            }
            var isNameValid = true;
            jQuery.ajax({
                type: "POST",
                url: '<s:url action="regist" method="checkUser" />',
                data: "userName=" + userName,
                dataType: "json", 
                cache: false,
                async: false,
                success: function (data, textStatus) {
                    isNameValid = data['isNameValid'];
                    if(isNameValid) {
                        document.getElementById("userNameSpan").innerHTML = "该用户名可以使用";
                    } else {
                        document.getElementById("userNameSpan").innerHTML = "该用户名已经被占用";
                        userNameInput.focus();
                    }
                }
            });
            return isNameValid;
        }
    </script>
</head>
<body>
    <s:actionerror/>
    <s:form name="registForm" method="POST" action="regist!regist" validate="true">

        <s:token />
        <s:textfield name="userName" id="userName" key="lable.text.userName" onblur="checkUserName()"></s:textfield><span id="userNameSpan"></span><br />
        <s:password name="password" key="lable.text.password"></s:password><br />
        <s:textfield name="email" key="lable.text.email"></s:textfield>
        <s:submit type="input" key="lable.text.regist"></s:submit>
    </s:form>
</body>
</html>

users.jsp

<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<%@ taglib uri="/struts-tags" prefix="s" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html>
<head>
    <title><s:text name="lable.text.userlist"></s:text></title>
</head>
<body>
    <table border="1">
        <tr>
            <td><s:text name="lable.text.ordinal"/></td>
            <td><s:text name="lable.text.userName"/></td>
            <td><s:text name="lable.text.email"/></td>
        </tr>
        <s:iterator value="#request.userList" status="status">
        <tr>
            <td width="40"><s:property value="#status.index+1"></s:property></td>
            <td width="80"><s:property value="name"></s:property></td>
            <td width="150"><s:property value="email"></s:property></td>
        </tr>
        </s:iterator>
    </table>
</body>
</html>

welcome.jsp

<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<%@ taglib uri="/struts-tags" prefix="s" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html>
<head>
    <title><s:text name="welcome.info"/></title>
</head>
<body>
    <h3><s:property value="user.name"></s:property><s:text name="welcome.info"/></h3>
    <p><s:if test="user.email==null || user.email==''">您未注册邮箱。</s:if>
    <s:else>您注册的邮箱是：<s:property value="user.email"></s:property></s:else></p>
</body>
</html>

所有的源码部分都完了，具体的可以在这里查看。

然后来说一下我所遇到的Bug！

1.jar包版本的问题

jar包的版本不同会导致遇到文件找不到的问题

2.IDEA jar包的导入方式

这个问题比较尴尬，如果通过maven的方式导入是不会出现这个问题的，如果是手动添加现有的jar包文件一定要直接导入，不要讲jar文件再次添加到其它的jar中，如下图：
这里写图片描述
就是左边的 + 号，而不是右边的 + 号

3.struts中请求处理的action使用的method，可能会如下填写：

        <action name="user!*" method="{1}" class="action.ListAction">
            <result name="userlist">/pages/users.jsp</result>
        </action>

这样就可以根据不同的请求去调用不同的方法执行请求，写法如上，method={1}，这里(【struts2】中method={1}详解)解释了这种写法。

所以在jsp文件中也必须如下填写action了（regist!regist）：

<s:form name="registForm" method="POST" action="regist!regist" validate="true">

        <s:token />
        <s:textfield name="userName" id="userName" key="lable.text.userName" onblur="checkUserName()"></s:textfield><span id="userNameSpan"></span><br />
        <s:password name="password" key="lable.text.password"></s:password><br />
        <s:textfield name="email" key="lable.text.email"></s:textfield>
        <s:submit type="input" key="lable.text.regist"></s:submit>
    </s:form>

好了，来大致理一下工作流程，当容器启动加载的时候，Spring加载各个配置文件，注入依赖的Bean，当请求到来首先通过web.xml文件中配置的过滤器接受请求，转发交给struts进行处理，strust框架寻求合适的action进行响应，处理响应时，通过hibernate进行数据的操作，完成具体的操作，然后进行页面的响应显示。

大致就是这样，3个框架的整合，需要注意到很多的细节，这里没有过多的描述，具体的代码理解和框架分开使用差异不算太大，重要的是一定要有耐心，理清各个部分的思路～～～