SSH框架整合实现信息管理系统

视频讲解

优酷在线观看（普清、高清）：http://www.youku.com/playlist_show/id_19348363.html

B站在线观看：https://www.bilibili.com/video/BV1Ft4y117Jm

超清视频下载：http://yun.baidu.com/s/1pJ57Ry7

项目结构

 

web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5" 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_2_5.xsd">

    <!--首页-->
    <welcome-file-list>
        <welcome-file>index.jsp</welcome-file>
    </welcome-file-list>

    <!--Struts过滤转发器-->
    <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> <!--转发-->
        <url-pattern>/*</url-pattern> <!--过滤-->
    </filter-mapping>

    <!--Spring环境加载监听器-->
    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>

</web-app>

 

JSP页面

 

• 登入页面（index.jsp）

<%@ page pageEncoding="GBK"%>
<h1>管理员登录</h1>(测试账号密码都是admin)
<form action="UserAction_login" method="post">
    账号<input type="text" name="user.name"><br>
    密码<input type="password" name="user.pswd"><br>
    <input type="submit" value="登录">
</form> 

 

• 列表页面（list.jsp）

<%@taglib prefix="s" uri="/struts-tags" %>
<table border="1">
    <tr>
        <th>ID</th><th>name</th><th>pswd</th><th>update</th><th>delete</th>
    </tr>
    <s:iterator value="#request.list"> 
        <tr>
            <td><s:property value="id"/></td>  
            <td><s:a href="UserAction_detail?user.id=%{id}"><s:property value="name"/></s:a></td>  
            <td><s:property value="pswd"/></td>
            <td><s:a href="UserAction_toUpdate?user.id=%{id}">update</s:a></td>
            <td><s:a href="UserAction_delete?user.id=%{id}">delete</s:a></td>
        </tr>
    </s:iterator>
</table>
<a href="add.jsp">add</a>

 

• 添加页面（add.jsp）

<form action="UserAction_add" method="post">
    name<input name="user.name" type="text"><br>
    pswd<input name="user.pswd" type="password"><br>
    <input type="submit" value="add">
</form>

 

• 详情页面（detail.jsp）

<%@taglib prefix="s" uri="/struts-tags" %>
id: <s:property value="user.id"/><br/>
name: <s:property value="user.name"/><br/>
pswd: <s:property value="user.pswd"/>

 

• 更新页面（update.jsp）

<%@taglib prefix="s" uri="/struts-tags" %>
<form action="UserAction_update" method="post">
    <s:hidden name="user.id"></s:hidden>
    name: <input name="user.name" type="text" value="<s:property value="user.name"/>"><br>
    pswd: <input name="user.pswd" type="password"><br>
    <input type="submit" value="modify">
</form>

 

控制层（Action）

 

• Struts.xml配置Action

 

<?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.devMode" value="true" />
    <constant name="struts.i18n.encoding" value="GBK"></constant>
    <package name="user" extends="struts-default">
        <action name="UserAction_*" class="userAction" method="{1}">
        <!-- *匹配任意字符，{1}指第一个星号匹配到的字符 -->
            <!--重定向到UserAction执行list方法-->
            <result name="success" type="redirectAction">UserAction_list</result>
            <!--返回结果相应页面-->
            <result name="login">/index.jsp</result>
            <result name="list">/list.jsp</result>
            <result name="detail">/detail.jsp</result>
            <result name="update">/update.jsp</result>
        </action>
    </package>
</struts>

 

• UserAction.java

 

package com.lyltim.action;

import javax.annotation.Resource;

import org.apache.struts2.ServletActionContext;
import org.springframework.stereotype.Controller;

import com.lyltim.bean.User;
import com.lyltim.service.IUserService;
import com.opensymphony.xwork2.ActionSupport;

@Controller("userAction")
public class UserAction extends ActionSupport {

    private User user;

    //注入userService
    @Resource
    IUserService userService;

    public void setUserService(IUserService userService) {
        this.userService = userService;
    }
    public User getUser() {
        return user;
    }
    public void setUser(User user) {
        this.user = user;
    }

    public String login() {
        if (userService.checkLogin(user))
            return SUCCESS;
        else
            return LOGIN;
    }

    public String list() {
        ServletActionContext.getRequest().setAttribute("list", userService.list());
        return "list";
    }

    public String add() {
        userService.add(user);
        return SUCCESS;
    }

    public String detail() {
        user = userService.getUser(user.getId());
        return "detail";
    }

    //先获得要更新的用户的信息，显示到更新页面。
    public String toUpdate() {
        user = userService.getUser(user.getId());
        return "update";
    }

    //更新用户信息
    public String update() {
        userService.update(user);
        return SUCCESS;
    }

    public String delete() {
        userService.delete(user.getId());
        return SUCCESS;
    }

}

 

实体层（Bean）

 

• User.java

 

package com.lyltim.bean;
public class User {
    private int id;
    private String name, pswd;
    //Getters and Setters...
}

 

• User.hbm.xml 实体映射配置文件

 

<?xml version="1.0"?>
<!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="com.lyltim.bean.User" table="user">
        <id column="id" name="id" type="int">
            <generator class="native" />
        </id>
        <property column="name" name="name" not-null="true" type="string" />
        <property column="pswd" name="pswd" not-null="true" type="string" />
    </class>
</hibernate-mapping>

 

业务逻辑层（Service）

 

• IUserService接口

 

package com.lyltim.service;

import java.util.List;
import com.lyltim.bean.User;

public interface IUserService {
    boolean checkLogin(User user); //登入验证
    void add(User user); //添加用户
    List<User> list(); //列出所有用户
    User getUser(int id); //根据ID查找用户
    void update(User user); //修改用户
    void delete(int id); //删除用户
}

 

• UserServiceImpl.java实现类

 

package com.lyltim.service;

import java.util.List;
import javax.annotation.Resource;
import org.springframework.stereotype.Service;

import com.lyltim.bean.User;
import com.lyltim.dao.IUserDAO;

@Service("userService")
public class UserServiceImpl implements IUserService {

    //注入userDAO
    @Resource
    private IUserDAO userDAO;

    public void setUserDAO(IUserDAO userDAO) {
        this.userDAO = userDAO;
    }

    //登入验证
    public boolean checkLogin(User user) {
        if ("admin".equals(user.getName()) && "admin".equals(user.getPswd())) 
            return true;
        else
            return false;
    }

    //添加用户
    public void add(User user) {
        userDAO.add(user);
    }

    //列出所有用户
    public List<User> list() {
        return userDAO.list();
    }

    //查询某个用户
    public User getUser(int id) {
        return userDAO.getUser(id);
    }

    //修改某个用户的资料
    public void update(User user) {
        userDAO.update(user);
    }

    //删除某个用户
    public void delete(int id) {
        userDAO.delete(id);
    }

}

 

数据持久层（DAO）

• IUserDAO接口

package com.lyltim.dao;

import java.util.List;
import com.lyltim.bean.User;

public interface IUserDAO {
    void add(User user);  //添加用户
    List<User> list(); //列出所有用户
    User getUser(int id); //根据ID查找用户
    void update(User user); //修改用户
    void delete(int id); //删除用户
}

• UserDAOImpl.java实现类

package com.lyltim.dao;

import java.util.List;

import org.springframework.orm.hibernate3.support.HibernateDaoSupport;
import org.springframework.stereotype.Repository;

import com.lyltim.bean.User;

@Repository("userDAO")
public class UserDAOImpl extends HibernateDaoSupport implements IUserDAO {

    public void add(User user) {
        getHibernateTemplate().save(user);
    }

    public List<User> list() {
        return getHibernateTemplate().find("from User");
    }

    public User getUser(int id) {
        return getHibernateTemplate().get(User.class, id);
    }

    public void update(User user) {
        getHibernateTemplate().update(user);
    }

    public void delete(int id) {
        getHibernateTemplate().delete(getHibernateTemplate().get(User.class, id));
    }
}

 

Spring全局配置文件（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:context="http://www.springframework.org/schema/context"
       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-3.0.xsd">

    <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
        <property name="driverClassName" value="com.mysql.jdbc.Driver" />
        <property name="url" value="jdbc:mysql:///test" />
        <property name="username" value="root" />
        <property name="password" value="123" />
    </bean>

    <bean id="sessionFactory" class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
        <property name="dataSource" ref="dataSource" />
        <property name="mappingResources">
            <list>
                <value>com/lyltim/bean/User.hbm.xml</value>
            </list>
        </property>
        <property name="hibernateProperties">
            <props>
                <prop key="hibernate.dialect">org.hibernate.dialect.MySQL5Dialect</prop>
                <prop key="hibernate.hbm2ddl.auto">create-drop</prop>
                <prop key="hibernate.show_sql">true</prop>
            </props>
        </property>
    </bean>

    <bean id="userDAO" class="com.lyltim.dao.UserDAOImpl">
        <property name="sessionFactory" ref="sessionFactory" />
    </bean>

    <!--启用注解注入 -->
    <context:annotation-config />
    <!--启用组件扫描 -->
    <context:component-scan base-package="com.lyltim" />

</beans>