SSH整合案例------使用idea maven搭建 注解版

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   此篇在上一篇博客的基础上进行修改,实现注解开发,所需pom节点详情,还请参考上一篇博客点击打开链接

     使用注解方式来开发,需要做的事如下:

          先来看一下我们的注解版分层的结果目录:

                                                         20171029115806322 (312×586)

        从图中可以看到pojo层发生了改变,少了一个配置文件。当然,这只是表面上的,实际上需要改动的地方还是有好几处的。


          我们先从实体层开始切入: 

                Rs:

       

package cn.jjz.pojo;import org.hibernate.annotations.GenericGenerator;import javax.persistence.*;/** * Created by lenovo on 2017/9/22. */@Entity@Table(name = "Rs")public class Rs {    @Id    @GeneratedValue(generator="system-uuid")    @GenericGenerator(name="system-uuid",strategy="uuid")    private String id;    @Column    private String name;    @Column    private int age;    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 int getAge() {        return age;    }    public void setAge(int age) {        this.age = age;    }}
   我们再来看看dao层中的实现类:

      

package cn.jjz.dao;import cn.jjz.pojo.Rs;import org.hibernate.SessionFactory;import org.springframework.stereotype.Repository;import javax.annotation.Resource;/** * Created by lenovo on 2017/10/29. */@Repository("RsDao")public class RsDaoImpl implements  RsDao {    @Resource    private SessionFactory sessionFactory;    public void add(Rs rs) {        sessionFactory.getCurrentSession().save(rs);    }    public void setSessionFactory(SessionFactory sessionFactory) {        this.sessionFactory = sessionFactory;    }    public SessionFactory getSessionFactory() {        return sessionFactory;    }}
       可以发现,添加上了注解

  再看看service层中的实现类:

 

package cn.jjz.service;import cn.jjz.dao.RsDaoImpl;import cn.jjz.pojo.Rs;import org.springframework.stereotype.Service;import org.springframework.transaction.annotation.Transactional;import javax.annotation.Resource;/** * Created by lenovo on 2017/10/29. */@Service("RsService")public class RsServiceImpl implements RsService { @Resource(name = "RsDao")    private RsDaoImpl rsDao;    @Transactional    public void add(Rs rs) {        rsDao.add(rs);    }    public void setRsDao(RsDaoImpl rsDao) {        this.rsDao = rsDao;    }    public RsDaoImpl getRsDao() {        return rsDao;    }}
        也是加上了注解

我们再看看applicationContext.xml中的配置,有哪些改动:

     

<?xml version="1.0" encoding="UTF-8"?><beans xmlns="http://www.springframework.org/schema/beans"       xmlns:context="http://www.springframework.org/schema/context"       xmlns:tx="http://www.springframework.org/schema/tx"       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"       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.xsd     http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd">    <context:component-scan base-package="cn.jjz"></context:component-scan>    <!--1.配置数据源c3p0-->    <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">        <property name="driverClass" value="${jdbc.driverClassName}"/>        <property name="user" value="${jdbc.username}"/>        <property name="password" value="${jdbc.password}"/>        <property name="jdbcUrl" value="${jdbc.url}"/>    </bean>    <!--jdbc.properties-->    <context:property-placeholder location="classpath:jdbc.properties"></context:property-placeholder>    <!-- 配置session工厂     类:Local-->    <bean id="sessionFactory" class="org.springframework.orm.hibernate5.LocalSessionFactoryBean">        <property name="dataSource" ref="dataSource"/>        <property name="packagesToScan" value="cn.jjz.pojo"/>        <property name="hibernateProperties">            <props>                <prop key="hibernate.show_sql">true</prop>                <prop key="hibernate.format_sql">true</prop>                <prop key="hbm2ddl.auto">update</prop>                <prop key="hibernate.dialect">org.hibernate.dialect.Oracle10gDialect</prop>                <prop key="hibernate.current_session_context_class">org.springframework.orm.hibernate5.SpringSessionContext</prop>            </props>        </property>        <!--<property name="mappingDirectoryLocations" value="classpath:cn/jjz/pojo"></property>-->    </bean>        <!-- 事务管理器-->    <bean id="transactionManager" class="org.springframework.orm.hibernate5.HibernateTransactionManager">        <property name="sessionFactory" ref="sessionFactory"></property>    </bean>    <!--事务-->    <tx:annotation-driven transaction-manager="transactionManager"></tx:annotation-driven></beans>
       

    非注解applicationContext.xml:

<?xml version="1.0" encoding="UTF-8"?>  <beans xmlns="http://www.springframework.org/schema/beans"         xmlns:context="http://www.springframework.org/schema/context"         xmlns:tx="http://www.springframework.org/schema/tx"         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"         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.xsd       http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd  ">      <!--1.配置数据源c3p0-->      <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">          <property name="driverClass" value="${jdbc.driverClassName}"/>          <property name="user" value="${jdbc.username}"/>          <property name="password" value="${jdbc.password}"/>          <property name="jdbcUrl" value="${jdbc.url}"/>      </bean>      <!--jdbc.properties-->      <context:property-placeholder location="classpath:jdbc.properties"></context:property-placeholder>      <!-- 配置session工厂     类:Local-->      <bean id="sessionFactory" class="org.springframework.orm.hibernate5.LocalSessionFactoryBean">          <property name="dataSource" ref="dataSource"/>          <property name="hibernateProperties">              <props>                  <prop key="hibernate.show_sql">true</prop>                  <prop key="hibernate.format_sql">true</prop>                  <prop key="hbm2ddl.auto">update</prop>                  <prop key="hibernate.dialect">    org.hibernate.dialect.Oracle10gDialect</prop>                  <prop key="hibernate.current_session_context_class">org.springframework.orm.hibernate5.SpringSessionContext</prop>              </props>          </property>          <property name="mappingDirectoryLocations" value="classpath:cn/jjz/pojo"></property>      </bean>        <!--3.dao-->      <bean id="rsDao" class="cn.jjz.dao.RsDaoImpl">          <property name="sessionFactory" ref="sessionFactory"></property>      </bean>        <!--4.service-->      <bean id="rsService" class="cn.jjz.service.RsServiceImpl">          <property name="rsDao" ref="rsDao"></property>      </bean>        <!--要用Spring去创建Action对象  Struts2的Action是多例的-->      <bean id="rsAction" class="cn.jjz.action.RsAction" scope="prototype">          <property name="rsService" ref="rsService"></property>      </bean>          <!-- 事务管理器-->      <bean id="transactionManager" class="org.springframework.orm.hibernate5.HibernateTransactionManager">          <property name="sessionFactory" ref="sessionFactory"></property>      </bean>      <!--事务-->      <tx:annotation-driven transaction-manager="transactionManager"></tx:annotation-driven>      </beans>  

       再看看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.devMode" value="true"></constant>    <package name="one" namespace="/"  extends="struts-default">        <action name="add" class="cn.jjz.action.RsAction" method="add">            <result name="success">/ok.jsp</result>        </action>    </package></struts>

  最后看看需要改动的地方:

RsAction:

package cn.jjz.action;import cn.jjz.pojo.Rs;import cn.jjz.service.RsService;import com.opensymphony.xwork2.ActionSupport;import org.apache.struts2.convention.annotation.Action;import org.apache.struts2.convention.annotation.Result;import org.springframework.core.StandardReflectionParameterNameDiscoverer;import org.springframework.stereotype.Controller;import javax.annotation.Resource;import javax.persistence.Column;import java.util.List;/** * Created by lenovo on 2017/10/29. */@Controllerpublic class RsAction extends ActionSupport {    private Rs rs;    @Resource(name = "RsService")    private RsService rsService;    @Action(value = "add",results = {@Result(name = "success",location = "/ok.jsp")})    public String add(){        rsService.add(rs);        System.out.println(rs.getName());        return SUCCESS;    }    public Rs getRs() {        return rs;    }    public void setRs(Rs rs) {        this.rs = rs;    }    public RsService getRsService() {        return rsService;    }    public void setRsService(RsService rsService) {        this.rsService = rsService;    }}




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