SSH项目的搭建

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns="http://xmlns.jcp.org/xml/ns/javaee"
    xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
    id="WebApp_ID" version="3.1">

<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>　　

<context-param> 
<param-name>contextConfigLocation</param-name> 
<param-value>classpath:applicationContext.xml</param-value> 
</context-param>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>

public class IndexAction extends ActionSupport{
    //声明service，但不给它创建具体的实现类的实例，
    //因为：action不应该关注具体是谁来实现service
    //具体service实现类是谁，我们使用spring注入进来
    private IndexService is；
    public viod setIs(IndexService){//这里就是用spring注入
        this. is = is ;
    }
    public String execute1{
        return: "index" ;
    }     
}

<struts>
    <constant name="struts.obiectFactory" value="spring"/>
    <include file="s001.xml"/>
    <package name="mypck001" extends="struts-default">
        <action name="Index" class="myIndexAction" method="execute1"> 
            <result name="success">/WEB-INF/jsp/index.jsp</result>
            <result name="fail">/WEB-INF/jsp/fail.jsp</result>//防止不通过action就可以访问jsp页面
        </action>
    </package>
</struts> 

<?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"  
        xmlns:aop="http://www.springframework.org/schema/aop"   
        xmlns:context="http://www.springframework.org/schema/context"  
        xmlns:jee="http://www.springframework.org/schema/jee"  
        xmlns:tx="http://www.springframework.org/schema/tx"  
        xsi:schemaLocation="    
            http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.2.xsd  
            http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.2.xsd  
            http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.2.xsd
            http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee-4.2.xsd  
            http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.2.xsd">

   
 　　 <!-- ①一个bean标签对应一个类，id为myIndexAction的bean就对应项目中的IndexAction类     ②id的值是随便起，但最好有意义   ③class的值是包名.类名     ④scope="prototype"是非单例，不用理解，但一定要写这句代码，记住有这回事就行 -->
    <bean id="myIndexAction" class="ssh.action.IndexAction" scope="prototype">
       　　 <!-- ①name的值是要注入的变量名   ②ref是引用类的类名，name为“is”的变量引用的是myIndexService的值 -->
        <property name="is" ref="myIndexService"/>
    </bean>
    
   　　 <!-- myIndexService = new ssh.service.IndexServiceImpl()  id为myIndexService的bean对应项目中的IndexService类-->
    <bean id="myIndexService" class="ssh.service.IndexServiceImpl" scope="prototype">
　　　　<!-- name为id的变量引用的是myIndexDao的值 -->
        <property name="id" ref="myIndexDao"/>
    </bean>
    
    <bean id="myIndexDao" class="ssh.dao.IndexDaoImpl" scope="prototype">
        <property name="c" ref="myConnection"></property>
    </bean>


   　　 <!-- 下面这个bean是对应项目中的connection类，class的值是包名.类名 -->
    <bean id="myConnection" class="ssh.util.MyConnectionImpl_SQLSERVER" scope="prototype">
  　　  <!-- 这里没有<property>是因为connection这个类已经是连接数据库的类，我们已经不需要通过new实现类了 -->
    </bean>

</beans>

<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE hibernate-configuration PUBLIC 
"-//Hibernate/Hibernate Configuration DTD 3.0//EN" 
"http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd">

<hibernate-configuration>
    <session-factory>
        <!-- hibernate配置文件 -->
　　　　 <!-- 配置数据库名，以及用户名，密码 -->
        <property name="connection.driver_class">com.mysql.jdbc.Driver</property>
        <property name="connection.url">jdbc:mysql://localhost:3306/CardDB</property>
        <property name="connection.username">root</property>
        <property name="connection.password">123456</property>
        <!-- 每个数据库都有1个 -->
        <property name="dialect">org.hibernate.dialect.MySQL5Dialect</property>
        <property name="connection.pool_size">5</property>
        <property name="show_sql">true</property>
        <property name="format_sql">true</property>
        <property name="hbm2ddl.auto">update</property>
        <!-- 配置映射文件 -->
        <mapping resource="ssh/entity/BookCard.hbm.xml"/>    
    </session-factory>
</hibernate-configuration>

<?xml version="1.0" encoding="UTF-8"?>
<hibernate-mapping xmlns="http://www.hibernate.org/xsd/hibernate-mapping">
  <!-- ①class的值是包名.实体类名    ②table的值是数据库表名 -->
    <class name="ssh.entity.BookCard" table="BookCard">
        <!-- ①<id>标签是要作为主键的属性或字段才能用    ②column是数据库的字段名-->
        <id name="cid" column="cid">
            <generator class="native"></generator>
        </id>
        <!-- <property>标签对应于属性（数据库字段）在<property>标签中设置数据库相关的属性，比如长度、类型、是否为空、列名...等等 -->
        <property name="name" type="string" length="50" column="name" not-null="true"></property>
        <property name="sex" type="string" length="2" column="sex"></property>
        <property name="cardDate" type="date" column="cardDate"></property>
        <property name="deposit" type="double" column="deposit"></property>
    </class>
</hibernate-mapping>

package ssh.dao;

import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.cfg.Configuration;
import org.hibernate.query.Query;

public class IndexDaoImpl implements IndexDao {
　　<!-- SessionFactory是hibernate的内置对象 -->
    private SessionFactory sessionFactory;
　　<!-- 给SessionFactory一个set方法，便于spring注入 -->
    public void setSessionFactory(SessionFactory sf) {
        this.sessionFactory = sf;
    }

    @Override
    public List<BookCard> getAllBookCard() {
        <!-- sessionFactory这个实例可以自己按常规的hibernate传统写法创建也可以交给spring去托管sessionFactory = new Configuration().configure().buildSessionFactory(); -->
        Session session = sessionFactory.openSession();   
    }

}