ssh整合小例子

实现了用户的查插删改操作。

原理：struts负责接收、分发请求。spring采用面向接口编程的思想整合整体框架，负责连接数据库。hibernate负责操作数据库语言。

思路：

1.配置struts的配置信息
2.创建struts和hibernate的关联（主要是加载jar包）
3.创建struts和spring的关联（主要是加载jar包）
4.编写页面信息。action
5.纵向开发模式（但是平时按照横向开发）。纵向开发好处是思路清晰，先写完dao层

service层action层编写模式
6.开始编写spring的配置文件。添加bean。采用依赖注入完成面向接口编程（面向切面编

程更准确些）。
7.编写struts的配置文件。将action映射到spring的配置文件中的bean中

防止表单重复提交（重定向）

好了，不多说了，用例子说话才是最权威的。

1.配置struts

a.wen.xml文件添加struts的过滤器、映射，spring的监听器

<?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">

    <!-- 解决中文乱码问题 -->

    <filter>

            <filter-name>encodingFilter</filter-name>

            <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>

            <init-param>

                <param-name>encoding</param-name>

                <param-value>UTF-8</param-value>

            </init-param>

        </filter>

        <filter-mapping>

            <filter-name>encodingFilter</filter-name>

            <url-pattern>/*</url-pattern>

    </filter-mapping>

    <!-- 解决中文乱码问题 -->    

    <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>

</web-app>

b.struts的jar包支持

c.struts的配置文件 struts.xml(放在src目录下)

<?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>

    　　<constant name="struts.i18n.encoding" value="UTF-8"></constant>

        <package name="ssh2" extends="struts-default">

            <action name="saveUser" class="saveUserAction">

                <result name="success" type="redirect">listUser.action</result>

            </action>

            <action name="listUser"  class="listUserAction">

                <result name="success">/list.jsp</result>

            </action>

            <action name="deleteUser" class="removeUserAction">

                <result name="success" type="redirect">/listUser.action</result>

            </action>

            <!--请求转发  -->

            <action name="updatePUser" class="updatePUserAction">

                <result name="success">/update.jsp</result>

            </action>

            <!-- 重定向 -->

            <action name="updateUser" class="updateUserAction">

                <result name="success" type="redirect">/listUser.action</result>

            </action>

        </package>

    </struts>

2.导入hibernate的jar包支持，采用myeclipse自带的jar包

a.右击项目名称选择 myeclipse-->Add Hibernate Capabilities 如下图（为了将hibernate配置文件放置在src目录下，其实哪里都一样。。。）

b.点击next，不用向导配置完成后，打开配置文件

c.只是导入一些jar包，不需要连接数据库

d.不用创建session工厂

e.点击Finish完成

3.添加spring的jar包支持

同上面一样，导入jar包

4.编写页面信息、bean以及此bean的映射文件User.hbm.xml（放在com.test.bean目录下）

a.index.jsp

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>

<%@ taglib uri="/struts-tags" prefix="s"   %>

<%

String path = request.getContextPath();

String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";

%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">

<html>

  <head>

    <base href="<%=basePath%>">

    <title>My JSP 'index.jsp' starting page</title>

    <meta http-equiv="pragma" content="no-cache">

    <meta http-equiv="cache-control" content="no-cache">

    <meta http-equiv="expires" content="0">

    <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">

    <meta http-equiv="description" content="This is my page">

    <!--

    <link rel="stylesheet" type="text/css" href="styles.css">

    -->

  </head>

  <body>

    <h1><font color="red">Operation List</font></h1>

    <s:a href="save.jsp">Sav e User</s:a><br/>

    <s:a href="listUser.action">List Users</s:a>

  </body>

</html>

b.创建bean

package com.test.bean;

public class User {

    private int id;

    private String firstname;

    private String lastname;

    private int age;

    public int getId() {

        return id;

    }

    public void setId(int id) {

        this.id = id;

    }

    public String getFirstname() {

        return firstname;

    }

    public void setFirstname(String firstname) {

        this.firstname = firstname;

    }

    public String getLastname() {

        return lastname;

    }

    public void setLastname(String lastname) {

        this.lastname = lastname;

    }

    public int getAge() {

        return age;

    }

    public void setAge(int age) {

        this.age = age;

    }

}

3.bean的映射文件User.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">

<hibernate-mapping>

    <class name="com.test.bean.User" table="users">

        <id name="id" column="id" type="int">

            <generator class="increment"></generator>

        </id>

        <property name="firstname" column="firstname" type="string"></property>

        <property name="lastname" column="lastname" type="string"></property>

        <property name="age" column="age" type="int"></property>

    </class>

</hibernate-mapping>

6.因为要良好封装，所以从dao层开始编写

a.dao层接口

package com.test.dao.impl;

import java.util.List;

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

import com.test.bean.User;

import com.test.dao.UserDAO;

public class UserDAOImpl extends HibernateDaoSupport implements UserDAO

{

    public void saveUser(User user) {

        this.getHibernateTemplate().save(user);

    }

    @SuppressWarnings("unchecked")

    @Override

    public List<User> findAllUsers() {

        String hql = "from User user order by user.id desc";

        return     (List<User>)this.getHibernateTemplate().find(hql);

    }

    @Override

    public void removeUser(User user) {

        this.getHibernateTemplate().delete(user);

    }

    @Override

    public void updateUser(User user) {

        this.getHibernateTemplate().update(user);

    }

    @Override

    public User findUserById(Integer id) {

        User user = (User)this.getHibernateTemplate().get(User.class, id);

        return user;

    }

}

b.dao层实现类

package com.test.dao.impl;

import java.util.List;

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

import com.test.bean.User;

import com.test.dao.UserDAO;

public class UserDAOImpl extends HibernateDaoSupport implements UserDAO

{

    public void saveUser(User user) {

        this.getHibernateTemplate().save(user);

    }

    @SuppressWarnings("unchecked")

    @Override

    public List<User> findAllUsers() {

        String hql = "from User user order by user.id desc";

        return     (List<User>)this.getHibernateTemplate().find(hql);

    }

    @Override

    public void removeUser(User user) {

        this.getHibernateTemplate().delete(user);

    }

    @Override

    public void updateUser(User user) {

        this.getHibernateTemplate().update(user);

    }

    @Override

    public User findUserById(Integer id) {

        User user = (User)this.getHibernateTemplate().get(User.class, id);

        return user;

    }

}

7.编写service层

a.service的接口

package com.test.service;

import java.util.List;

import com.test.bean.User;

public interface UserService {

    public void save(User user);

    public List<User> findAll();

    public void delete(User user);

    public User findById(Integer id);

    public void update(User user);

}

b.service的实现类

package com.test.service.impl;

import java.util.List;

import com.test.bean.User;

import com.test.dao.UserDAO;

import com.test.service.UserService;

public class UserServiceImpl implements UserService

{

    private UserDAO userDAO;

    public UserDAO getUserDAO() {

        return userDAO;

    }

    public void setUserDAO(UserDAO userDAO) {

        this.userDAO = userDAO;

    }

    @Override

    public void save(User user) {

        this.userDAO.saveUser(user);//完成真正的业务逻辑

    }

    @Override

    public List<User> findAll() {

        return this.userDAO.findAllUsers();

    }

    @Override

    public void delete(User user) {

        this.userDAO.removeUser(user);

    }

    @Override

    public User findById(Integer id) {

        User user = this.userDAO.findUserById(id);

        System.out.println(user);

        return user;

    }

    @Override

    public void update(User user) {

        this.userDAO.updateUser(user);

    }

}

8.action的实现

a.完成的是显示全部用户信息功能的action

package com.test.action.user;

import java.util.List;

import java.util.Map;

import com.opensymphony.xwork2.ActionContext;

import com.opensymphony.xwork2.ActionSupport;

import com.test.bean.User;

import com.test.service.UserService;

public class ListUserAction extends ActionSupport {

    private UserService service;

    public UserService getService() {

        return service;

    }

    public void setService(UserService service) {

        this.service = service;

    }

    @SuppressWarnings("unchecked")

    @Override

    public String execute() throws Exception {

        Map request = (Map)ActionContext.getContext().get("request");

        request.put("list", this.service.findAll());

        return SUCCESS;

    }

}

b.根据id删除用户信息

package com.test.action.user;

import com.opensymphony.xwork2.ActionSupport;

import com.test.bean.User;

import com.test.service.UserService;

public class RemoveUserAction extends ActionSupport {

    private User user;

    private UserService service;

    public User getUser() {

        return user;

    }

    public void setUser(User user) {

        this.user = user;

    }

    public UserService getService() {

        return service;

    }

    public void setService(UserService service) {

        this.service = service;

    }

    @Override

    public String execute() throws Exception {

        this.service.delete(user);

        return  SUCCESS;

    }

}

c.添加用户信息

package com.test.action.user;

import com.opensymphony.xwork2.ActionSupport;

import com.test.bean.User;

import com.test.service.UserService;

public class SaveUserAction extends ActionSupport {

    private User user;

    private UserService service;

    public UserService getService() {

        return service;

    }

    public void setService(UserService service) {

        this.service = service;

    }

    public User getUser() {

        return user;

    }

    public void setUser(User user) {

        this.user = user;

    }

    @Override

    public String execute() throws Exception {

        //调用service相关的方法，完成实际的业务逻辑

        //action只负责收集数据，验证校验

        this.service.save(this.user);

        return SUCCESS;

    }

}

d.通过ID查找用户信息

package com.test.action.user;

import com.opensymphony.xwork2.ActionSupport;

import com.test.bean.User;

import com.test.service.UserService;

public class UpdatePUserAction extends ActionSupport {

    private User user;

    private UserService service;

    public User getUser() {

        return user;

    }

    public void setUser(User user) {

        this.user = user;

    }

    public UserService getService() {

        return service;

    }

    public void setService(UserService service) {

        this.service = service;

    }

    @Override

    public String execute() throws Exception {

        this.user = this.service.findById(this.user.getId());

        return SUCCESS;

    }

}

e.通过ID修改用户信息

package com.test.action.user;

import com.opensymphony.xwork2.ActionSupport;

import com.test.bean.User;

import com.test.service.UserService;

public class UpdateUserAction extends ActionSupport {

    private User user;

    private UserService service;

    public User getUser() {

        return user;

    }

    public void setUser(User user) {

        this.user = user;

    }

    public UserService getService() {

        return service;

    }

    public void setService(UserService service) {

        this.service = service;

    }

    @Override

    public String execute() throws Exception {

        this.service.update(user);

        return SUCCESS;

    }

}

9.添加spring的配置信息

bean的实现(放在WEB-INF目录下)

<?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:p="http://www.springframework.org/schema/p"

    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd">

    <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"

        destroy-method="close">

        <property name="driverClassName">

            <value>com.mysql.jdbc.Driver</value>

        </property>

        <property name="url">

            <value>jdbc:mysql://localhost:3306/hibernate</value>

        </property>

        <property name="username">

            <value>root</value>

        </property>

        <property name="password">

            <value>123456</value>

        </property>

    </bean>

    <bean id="sessionFactory" class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">

        <property name="dataSource">

            <ref local="dataSource"/>

        </property>

        <property name="mappingResources">

            <list>

                <value>com/test/bean/User.hbm.xml</value>

            </list>

        </property>

        <property name="hibernateProperties">

            <props>

                <prop key="hibernate.dialect">

                    org.hibernate.dialect.MySQLDialect

                </prop>

                <prop key="hibernate.show_sql">true</prop>

            </props>

        </property>

    </bean>

    <bean id="userDao" class="com.test.dao.impl.UserDAOImpl" scope="singleton">

        <property name="sessionFactory">

            <ref bean="sessionFactory"/>

        </property>

    </bean>

    <bean id="userService" class="com.test.service.impl.UserServiceImpl" scope="singleton">

        <property name="userDAO"  ref="userDao" />

    </bean>

    <bean id="saveUserAction" class="com.test.action.user.SaveUserAction" scope="prototype">

        <property name="service" ref="userService"></property>

    </bean>

    <bean name="listUserAction" class="com.test.action.user.ListUserAction" scope="prototype">

        <property name="service" ref="userService"></property>

    </bean>

    <bean name="removeUserAction" class="com.test.action.user.RemoveUserAction"  scope="prototype">

        <property name="service" ref="userService"></property>

    </bean>

    <bean name="updateUserAction" class="com.test.action.user.UpdateUserAction"  scope="prototype">

        <property name="service" ref="userService"></property>

    </bean>

    <bean name="updatePUserAction" class="com.test.action.user.UpdatePUserAction">

        <property name="service" ref="userService"></property>

    </bean>

</beans>

10.struts.xml（放在src目录下）

<?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>

        <package name="ssh2" extends="struts-default">

            <action name="saveUser" class="saveUserAction">

                <result name="success" type="redirect">listUser.action</result>

            </action>

            <action name="listUser"  class="listUserAction">

                <result name="success">/list.jsp</result>

            </action>

            <action name="deleteUser" class="removeUserAction">

                <result name="success" type="redirect">/listUser.action</result>

            </action>

            <!--请求转发  -->

            <action name="updatePUser" class="updatePUserAction">

                <result name="success">/update.jsp</result>

            </action>

            <!-- 重定向 -->

            <action name="updateUser" class="updateUserAction">

                <result name="success" type="redirect">/listUser.action</result>

            </action>

        </package>    

    </struts>

11.页面展示

a.list.jsp

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>

<%

String path = request.getContextPath();

String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";

%>

<%@ taglib uri="/struts-tags" prefix="s"%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">

<html>

  <head>

    <base href="<%=basePath%>">

    <title>My JSP 'list.jsp' starting page</title>

    <meta http-equiv="pragma" content="no-cache">

    <meta http-equiv="cache-control" content="no-cache">

    <meta http-equiv="expires" content="0">

    <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">

    <meta http-equiv="description" content="This is my page">

    <!--

    <link rel="stylesheet" type="text/css" href="styles.css">

    -->

<SCRIPT type="text/javascript">

    function del()

    {

        if(comfirm("are you sure?"))

        {

            return true;

        }

        return false;

    }

</SCRIPT>

  </head>

  <body>

    <h1><font color="red"><center>User List</center></font></h1>

    <table border="1" width=80% align="center">

        <tr>

            <td>序号：</td>

            <td>姓：</td>

            <td>名：</td>

            <td>年龄：</td>

            <td>删除：</td>

            <td>更新：</td>

        </tr>

        <s:iterator value="#request.list" id="us">

            <tr>

                <td>

                    <s:property value="#us.id"/>

                </td>

                <td>

                    <s:property value="#us.firstname"/>

                </td>

                <td>

                    <s:property value="#us.lastname"/>

                </td>

                <td>

                    <s:property value="#us.age"/>

                </td>

                <td>

                    <s:a href="deleteUser.action?user.id=%{#us.id}" onclick="return del();">delete</s:a>

                </td>

                <td>

                    <s:a href="updatePUser.action?user.id=%{#us.id}">update</s:a>

                </td>

            </tr>

        </s:iterator>

    </table>

  </body>

</html>

b.save.jsp

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>

<%@ taglib uri="/struts-tags"  prefix="s"%>

<%

String path = request.getContextPath();

String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";

%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">

<html>

  <head>

    <base href="<%=basePath%>">

    <title>My JSP 'save.jsp' starting page</title>

    <meta http-equiv="pragma" content="no-cache">

    <meta http-equiv="cache-control" content="no-cache">

    <meta http-equiv="expires" content="0">

    <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">

    <meta http-equiv="description" content="This is my page">

    <!--

    <link rel="stylesheet" type="text/css" href="styles.css">

    -->

  </head>

  <body>

    <h1><font color="red">Operation User</font></h1>

    <s:form action="saveUser">

        <s:textfield name="user.firstname" label="firstname"></s:textfield>

        <s:textfield name="user.lastname" label="lastname"></s:textfield>

        <s:textfield name="user.age" label="age"></s:textfield>

        <s:submit value="submit"></s:submit>

    </s:form>

  </body>

</html>

c.update.jsp

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>

<%

String path = request.getContextPath();

String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";

%>

<%@ taglib prefix="s" uri="/struts-tags"%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">

<html>

  <head>

    <base href="<%=basePath%>">

    <title>My JSP 'update.jsp' starting page</title>

    <meta http-equiv="pragma" content="no-cache">

    <meta http-equiv="cache-control" content="no-cache">

    <meta http-equiv="expires" content="0">

    <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">

    <meta http-equiv="description" content="This is my page">

    <!--

    <link rel="stylesheet" type="text/css" href="styles.css">

    -->

  </head>

  <body>

    <h1><font color="red"><center> Update User</center></font></h1>

     <s:form action="updateUser">

         <table>

             <tr>

                 <td>

                     <s:hidden name="user.id" value="%{user.id}"></s:hidden>

                 </td>

                 <td>

                     <s:textfield name="user.firstname" value="%{user.firstname}"></s:textfield>

                 </td>

                 <td>

                     <s:textfield name="user.lastname" value="%{user.lastname}"></s:textfield>

                 </td>

                 <td>

                     <s:textfield name="user.age" value="%{user.age}"></s:textfield>

                 </td>

                 <td>

                     <s:submit value="submit"></s:submit>

                 </td>

             </tr>

         </table>

     </s:form>

  </body>

</html>

总体的框架

lib目录下jar包信息

好了完工。。。。坐等评论。

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