初学者易上手的SSH-整合

许久没更新博客了！

spring还有一章aop(面向切面)，我就没讲述了，你们可以去看下代理模式。

那么我们开始整合:struts2  2.3.4 ,hibernate 5.2.10 ,spring 4.3.10 ，一直以来用到的xml式，那么整合也不例外，就是有些麻烦。另外注解式想了解请留言(虽然ssh已过时)。

首先建立一个maven项目，导入以下依赖:

    <!-- javax.servlet-api -->
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>javax.servlet-api</artifactId>
            <version>4.0.</version>
            <scope>provided</scope>
        </dependency>

        <!-- hibernate-core -->
        <dependency>
            <groupId>org.hibernate</groupId>
            <artifactId>hibernate-core</artifactId>
            <version>5.2..Final</version>
        </dependency>

        <!-- spring-context -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context</artifactId>
            <version>4.3..RELEASE</version>
        </dependency>

        <!-- spring-orm -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-orm</artifactId>
            <version>4.3..RELEASE</version>
        </dependency>

        <!-- spring-aspects -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-aspects</artifactId>
            <version>4.3..RELEASE</version>
        </dependency>

        <!-- struts2-core -->
        <dependency>
            <groupId>org.apache.struts</groupId>
            <artifactId>struts2-core</artifactId>
            <version>2.3.</version>
        </dependency>

        <!-- struts2-spring-plugin -->
        <dependency>
            <groupId>org.apache.struts</groupId>
            <artifactId>struts2-spring-plugin</artifactId>
            <version>2.3.</version>
        </dependency>

        <!-- mysql -->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.</version>
        </dependency>

        <!-- c3p0 -->
        <dependency>
            <groupId>com.mchange</groupId>
            <artifactId>c3p0</artifactId>
            <version>0.9.5.2</version>
        </dependency>

由于整个用xml文件，所以分开配置，比较容易理解:

在resources文件夹下建立以下xml

1.applicationContext-public.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: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-4.3.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.3.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.3.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.3.xsd">

    <!-- 配置数据库连接池 c3p0 -->
    <bean id="datasource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
        <property name="user" value="root"></property>
        <property name="password" value="sasa"></property>
        <property name="jdbcUrl" value="jdbc:mysql://localhost:3306/ssh"></property>
        <property name="driverClass" value="com.mysql.jdbc.Driver"></property>
        <property name="initialPoolSize" value=""></property>
        <property name="maxPoolSize" value=""></property>

    </bean>

    <!-- 配置sessionFactory -->
    <bean id="sessionFactoryBean"
        class="org.springframework.orm.hibernate5.LocalSessionFactoryBean">
        <property name="dataSource" ref="datasource"></property>
     <!--可以不用-->
        <property name="configLocation" value="classpath:hibernate.cfg.xml"></property>
        <property name="mappingLocations" value="classpath:com/entity/*.hbm.xml"></property>
    </bean>

    <!-- 配置事务 -->
    <bean id="transactionManager"
        class="org.springframework.orm.hibernate5.HibernateTransactionManager">
        <property name="sessionFactory" ref="sessionFactoryBean"></property>
    </bean>

    <!-- 配置事务属性 -->
    <tx:advice id="myAdvice" transaction-manager="transactionManager">
        <tx:attributes>
            <tx:method name="add*" propagation="REQUIRED" />
            <tx:method name="update*" propagation="REQUIRED" />
            <tx:method name="delete*" propagation="REQUIRED" />
            <tx:method name="*" />
        </tx:attributes>
    </tx:advice>

    <!-- 配置事务切点 -->
    <aop:config>
        <aop:pointcut expression="execution(* com.dao.*.*(..))"
            id="myPointcut" />
        <aop:advisor advice-ref="myAdvice" pointcut-ref="myPointcut" />
    </aop:config>
</beans>

建立basedao，用户dao层获取seesion来获取数据

package com.dao.impl;

import org.hibernate.Session;
import org.hibernate.SessionFactory;

public class BaseDao {

	private static SessionFactory sessionFactory;

	public static SessionFactory getSessionFactory() {
		return sessionFactory;
	}

	public static void setSessionFactory(SessionFactory sessionFactory) {
		BaseDao.sessionFactory = sessionFactory;
	}

	public static Session getSession() {
		return sessionFactory.getCurrentSession();

	}

}

　　建立dao类继承basedao

package com.dao.impl;

import java.util.List;

import com.dao.IMenuDao;
import com.entity.Menu;

public class MenuDao extends BaseDao implements IMenuDao {

    public List<Menu> getAll(String rid, String title) {
    //引用basedao getSession()方法
       getSession().createQuery(sql) .....

      return null;
 } 
}

2.applicationContext-dao.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: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-4.3.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.3.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.3.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.3.xsd">

<!--此为公共类 获取session-->
    <bean id="baseDao" class="com.dao.impl.BaseDao">
<!--name为basedao中的引用对象名 其实是set方法名 因为对象的set方法一般与对象名一致  ref为applicationContext-public.xml中配置sessionFactory 的id-->
 <property name="sessionFactory" ref="sessionFactoryBean"></property> </bean> 

<!--id 自己写 class为类全路径 parent意为父类，即继承了上面的basedao-->

</bean>

<bean id="menuDao" class="com.dao.impl.MenuDao" parent="baseDao">
</bean>

</beans>

建立biz类引用dao类

package com.biz.impl;

import java.util.List;

import com.biz.IMenuBiz;
import com.dao.IMenuDao;
import com.entity.Menu;

public class MenuBiz implements IMenuBiz {

//引用dao   提供getter and setter
     private IMenuDao iMenuDao;

    public IMenuDao getiMenuDao() {
        return iMenuDao;
    }

    public void setiMenuDao(IMenuDao iMenuDao) {
        this.iMenuDao = iMenuDao;
    }

    public List<Menu> getAll(String rid,String title) {

        return iMenuDao.getAll(rid,title);
    }

}

3.applicationContext-biz.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: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-4.3.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.3.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.3.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.3.xsd">

<bean id="menuBiz" class="com.biz.impl.MenuBiz">

<!--name biz类中引用对象名  ref为applicationContext-dao.xml中对象dao的id-->

<property name="iMenuDao" ref="menuDao"></property>
</bean>

</beans>

建立Action类引用biz

package com.action;

import java.io.IOException;
import java.io.PrintWriter;
import java.util.List;

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

import org.apache.struts2.ServletActionContext;

import com.biz.IMenuBiz;
import com.entity.Menu;
import com.opensymphony.xwork2.ActionSupport;
import com.opensymphony.xwork2.ModelDriven;

import net.sf.json.JSONArray;

public class MenuAction extends ActionSupport implements ModelDriven<Menu> {

    private static final long serialVersionUID = 1L;

    private Menu menu = new Menu();

   //引用的biz
    private IMenuBiz iMenuBiz;

    public IMenuBiz getiMenuBiz() {
        return iMenuBiz;
    }

    public void setiMenuBiz(IMenuBiz iMenuBiz) {
        this.iMenuBiz = iMenuBiz;
    }

    public Menu getModel() {

        return menu;
    }

}

4.建立applicationContext-action.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: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-4.3.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.3.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.3.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.3.xsd">

    <bean id="menuAction" class="com.action.MenuAction" scope="prototype">
       //配置与dao,biz意思一样
        <property name="iMenuBiz" ref="menuBiz"></property>
    </bean>

</beans>

最后建立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="mypackage" extends="struts-default">
        <!--calss为applicationContext-action.xml对应的id-->
        <action name="menu*" class="menuAction" method="{1}">
            <result name="success">/index.jsp</result>
            <result name="error">/login.jsp</result>
        </action>
    </package>
</struts>

web.xml配置

<!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>
    <display-name>Archetype Created Web Application</display-name>

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

    <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>*.action</url-pattern>
    </filter-mapping>

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

</web-app>

整个下来很容易配错，要细心。关于在其中的许多解释就没说了，附图一张:  ssh完