SSH框架的初步搭建

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环境准备

最近试着搭了一个简单的ssh框架，是一个用户注册的功能，在此记录下来流程，备忘的同时，也分享出来。本文使用spring3.2+struts2.2+hibernate3在eclipse上搭建这个框架，所用jar包整合可以在这里下载。点此下载

项目创建

新建一个Dynamic Web Project，一路next，到这里

生成web.xml

项目创建成功以后就可以创建包和类文件了，目录如下：
action包存放action类，beans存放pojo类，dao的daoImpl分别存放dao接口和实现类，service和serviceImpl分别存放服务接口和实现类。
然后把在上面地址下载的jar包放入WebContent下的lib文件夹。

接下来就可以创建数据库了。这里用的是mysql。在mysql里执行这段脚本。

CREATE DATABASE ssh;USE ssh;CREATE TABLE user(id INT(11) AUTO_INCREMENT,username VARCHAR(32),password VARCHAR(32),gender INT(1),PRIMARY KEY(id) )

　搭建过程

首先配置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>SSHDemo</display-name>  <welcome-file-list>    <welcome-file>register.jsp</welcome-file>  </welcome-file-list>  <!-- spring监听器,当项目启动时，加载spring配置文件 -->   <listener>          <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>      </listener>      <!-- struts2拦截器 -->  <filter>      <filter-name>SSH</filter-name>      <filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>  </filter>  <!-- 拦截所有类型的url -->  <filter-mapping>      <filter-name>SSH</filter-name>      <url-pattern>/*</url-pattern>  </filter-mapping></web-app>

创建jsp页面

在WebContent下新建register.jsp、success.jsp和error.jsp

<%@ page language="java" contentType="text/html; charset=UTF-8"    pageEncoding="UTF-8"%><%@ taglib prefix="s" uri="/struts-tags"%> <!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>注册</title></head><body>    <s:form action="register">    <s:textfield name="user.username" label="用户名"/>    <s:password name="user.password" label="密码"/>    <s:select list="#{'1':'男','0':'女'}"         name="user.gender" label="性别"/>    <s:submit value="注册"/>    </s:form></body></html>

success和error的页面分别用一句话显示成功的消息和失败的消息，因此不再列出。

创建实体类

根据图片，在对应的包下创建相应的类。

在beans下创建User.java

package beans;public class User {    private int id;    private String username;    private String password;    private int gender;    public int getId() {        return id;    }    public void setId(int id) {        this.id = id;    }    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 int getGender() {        return gender;    }    public void setGender(int gender) {        this.gender = gender;    }}

创建User的映射
同样在beans下创建User.hbm.xml

<?xml version="1.0" encoding="UTF-8"?><!DOCTYPE hibernate-mapping PUBLIC   "-//Hibernate/Hibernate Mapping DTD 3.0//EN"   "http://www.hibernate.org/dtd/hibernate-mapping-3.0.dtd"> <hibernate-mapping>    <class name="beans.User" table="user">        <id name="id" column="id">            <generator class="native"></generator>        </id>        <property name="username" />          <property name="password" />          <property name="gender" />    </class></hibernate-mapping>

创建service和dao

UserDao.java

package dao;import org.hibernate.HibernateException;public interface UserDao {    void saveUser(Object object) throws HibernateException;}

UserDaoImpl.java

package daoImpl;import org.hibernate.HibernateException;import org.springframework.orm.hibernate3.HibernateTemplate;import dao.UserDao;public class UserDaoImpl extends HibernateTemplate implements UserDao {    @Override    public void saveUser(Object object) throws HibernateException {        // TODO Auto-generated method stub        save(object);    }}

UserService.java

package service;import beans.User;public interface UserService {    void saveUser(User user);}

UserServiceImpl.java

package serviceImpl;import org.hibernate.HibernateException;import beans.User;import dao.UserDao;import service.UserService;public class UserServiceImpl implements UserService {    private UserDao dao;        public UserDao getDao() {        return dao;    }    public void setDao(UserDao dao) {        this.dao = dao;    }    @Override    public void saveUser(User user) throws HibernateException{        dao.saveUser(user);    }}

创建action

RegisterAction.java

package action;import com.opensymphony.xwork2.ActionSupport;import beans.User;import service.UserService;public class RegisterAction extends ActionSupport{    private User user;    private UserService userService;    public User getUser() {        return user;    }    public void setUser(User user) {        this.user = user;    }    public UserService getUserService() {        return userService;    }    public void setUserService(UserService userService) {        this.userService = userService;    }    public String execute(){        try {            userService.saveUser(user);            return SUCCESS;        } catch (Exception e) {            // TODO: handle exception            e.printStackTrace();            return ERROR;        }    }}

配置struts文件

在WEB-INF下新建classes文件夹，新建struts.xml文件

<?xml version="1.0" encoding="UTF-8"?><!DOCTYPE struts PUBLIC      "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"      "http://struts.apache.org/dtds/struts-2.0.dtd">  <struts>    <!-- 此处告诉struts创建action的工作交给spring来完成 -->    <constant name="struts.objectFactory" value="spring"></constant>    <package name="reg" extends="struts-default">        <!-- regAction配置在spring中 -->        <action name="register" class="regAction" method="execute">            <result name="success">/success.jsp</result>            <result name="error">/error.jsp</result>        </action>    </package></struts>

配置spring文件
在WEB-INF下新建applicationContext.xml文件,默认是到WEB-INF下寻找spring的配置文件，也可以在web.xml中更改spring配置文件的路径。

<?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:aop="http://www.springframework.org/schema/aop"    xmlns:tx="http://www.springframework.org/schema/tx"    xmlns:context="http://www.springframework.org/schema/context"    xsi:schemaLocation="   http://www.springframework.org/schema/beans    http://www.springframework.org/schema/beans/spring-beans-3.0.xsd   http://www.springframework.org/schema/aop    http://www.springframework.org/schema/aop/spring-aop-3.0.xsd   http://www.springframework.org/schema/tx    http://www.springframework.org/schema/tx/spring-tx-3.0.xsd   http://www.springframework.org/schema/context         http://www.springframework.org/schema/context/spring-context-3.0.xsd">    <!-- 配置数据源,-->    <bean id="ds" class="org.springframework.jdbc.datasource.DriverManagerDataSource">        <property name="driverClassName" value="com.mysql.jdbc.Driver"/>        <property name="url" value="jdbc:mysql://localhost:3306/ssh"/>        <property name="username" value="root"/>         <property name="password" value="root"/>      </bean>     <!-- 配置sessionFactory -->     <bean id="sessionFactory"          class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">          <property name="dataSource" ref="ds">          </property>          <property name="mappingResources">              <list>                  <value>beans/User.hbm.xml</value>              </list>          </property>          <property name="schemaUpdate">              <value>true</value>          </property>        <property name="hibernateProperties">            <value>                hibernate.dialect=org.hibernate.dialect.MySQLDialect                hibernate.show_sql=true                hbm2ddl.auto=update            </value>        </property>    </bean>      <!-- dao层 -->    <bean id="userDao" class="daoImpl.UserDaoImpl">          <property name="sessionFactory" ref="sessionFactory"/>      </bean>       <!--用户注册逻辑-->      <bean id="userService" class="serviceImpl.UserServiceImpl">          <property name="dao" ref="userDao"/>      </bean>      <!-- 用户注册的Action  scope="prototype" 可以保证 当有请求的时候 都创建一个新的Action对象 -->      <bean id="regAction" class="action.RegisterAction" scope="prototype">        <property name="userService" ref="userService"/>        </bean>  </beans>

WebContent下的文件结构

这里写图片描述

至此，搭建完成，运行即可。

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