三大框架整合模板ssh

1.web.xml配置

<!-- 让spring随web启动而创建的监听器 -->
  <listener>
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
  </listener>
  <!-- 配置spring配置文件位置参数 -->
  <context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>classpath:applicationContext.xml</param-value>
  </context-param>
  <!-- 扩大session作用范围
    注意: 任何filter一定要在struts的filter之前调用
   -->
   <filter>
    <filter-name>openSessionInView</filter-name>
    <filter-class>org.springframework.orm.hibernate5.support.OpenSessionInViewFilter</filter-class>
  </filter>
  <!-- struts2核心过滤器 -->
  <filter>
    <filter-name>struts2</filter-name>
    <filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>
  </filter>
​
  <filter-mapping>
    <filter-name>openSessionInView</filter-name>
    <url-pattern>/*</url-pattern>
  </filter-mapping>
  <filter-mapping>
    <filter-name>struts2</filter-name>
    <url-pattern>/*</url-pattern>
  </filter-mapping>

2.db.properties配置

jdbc.jdbcUrl=jdbc:mysql:///数据库名称?characterEncoding=UTF-8
jdbc.driverClass=com.mysql.jdbc.Driver
jdbc.user=用户名
jdbc.password=密码

3.struts.xml配置

<?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>
    <!-- #  struts.objectFactory = spring   将action的创建交给spring容器    
            struts.objectFactory.spring.autoWire = name spring负责装配Action依赖属性
            -->
    <constant name="struts.objectFactory" value="spring"></constant>

<package name="user" namespace="/" extends="struts-default" >
​
         <interceptors>
    <!-- 注册拦截器 -->
            <interceptor name="privilegeInterceptor" class="cn/hr/web/interceptor/PrivilegeInterceptor"></interceptor>

    <!-- 配置拦截器栈 -->
            <interceptor-stack name="myStack">
                <interceptor-ref name="privilegeInterceptor">
                    <param name="excludeMethods">login,register</param>
                </interceptor-ref>
                <interceptor-ref name="defaultStack"></interceptor-ref>
            </interceptor-stack>
        </interceptors>
    <!-- 指定默认拦截器栈 -->
    <default-interceptor-ref name="myStack"></default-interceptor-ref> 

<!-- 全局结果集配置 -->
    <global-results>
        <result name="toLogin" type="redirect" >/login.jsp</result>
    </global-results>

    <global-exception-mappings>
        <exception-mapping result="error" exception="java.lang.RuntimeException"></exception-mapping>
    </global-exception-mappings>

    <action name="action类的名字_*" class="spring注解的名称" method="{1}" >

    </action>
</package>

</struts>

4.applicationContext.xml的配置

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
        xmlns="http://www.springframework.org/schema/beans" 
        xmlns:context="http://www.springframework.org/schema/context"
        xmlns:aop="http://www.springframework.org/schema/aop" 
        xmlns:tx="http://www.springframework.org/schema/tx"
        xsi:schemaLocation="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/aop http://www.springframework.org/schema/aop/spring-aop-4.2.xsd 
                            http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.2.xsd ">

<!-- 读取db.properties文件 -->
<context:property-placeholder location="classpath:db.properties" />
​
<!-- 开启扫描类中的注解 -->
<context:component-scan base-package="cn.hr"></context:component-scan>
<!-- 配置c3p0连接池 -->
<bean name="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource" >
    <property name="jdbcUrl" value="${jdbc.jdbcUrl}" ></property>
    <property name="driverClass" value="${jdbc.driverClass}" ></property>
    <property name="user" value="${jdbc.user}" ></property>
    <property name="password" value="${jdbc.password}" ></property>
</bean>
​
<!-- 核心事务管理器 -->
<bean name="transactionManager" class="org.springframework.orm.hibernate5.HibernateTransactionManager" >
    <property name="sessionFactory" ref="sessionFactory" ></property>
</bean>
​
<tx:annotation-driven transaction-manager="transactionManager" />
​
<bean name="sessionFactory" class="org.springframework.orm.hibernate5.LocalSessionFactoryBean" >
    <property name="dataSource" ref="dataSource" ></property>
    <property name="hibernateProperties">
        <props>
            <prop key="hibernate.dialect" >org.hibernate.dialect.MySQLDialect</prop>
            <!--  可选配置 -->
            <prop key="hibernate.show_sql" >true</prop>
            <prop key="hibernate.format_sql" >true</prop>
            <prop key="hibernate.hbm2ddl.auto" >update</prop>
        </props>
    </property>
    <!--自动去扫描domain下面的实体类.hbm.xml文件-->
    <property name="mappingDirectoryLocations" value="classpath:cn/hr/domain" ></property>
</bean>

</beans>

5.dao层的基本配置和书写

@Repository("dao层的属性注入名称")
public class 实现类名 extends HibernateDaoSupport implements 接口名{
    //固定格式
    @Resource(name="sessionFactory")
    public void setSF(SessionFactory sf) {
        super.setSessionFactory(sf);
    }

}

6.service层基本配置和书写

@Service("service层的属性注入名称")
//下面的属性是设置是否只读，对于不只读的方法将true改为false
@Transactional(isolation=Isolation.REPEATABLE_READ,propagation=Propagation.REQUIRED,readOnly=true)
public class 实现类名 implements 接口名{
    @Resource(name="dao层的属性注入名称")
    private StartPageDao spd;
}

7.action层基本配置和书写

@Scope("prototype")
//设置多例
@Controller("action层的属性注入名称")
public class 实现类名 extends ActionSupport{
@Resource(name="service层的属性注入名称")
private StartPageService startpageservice;
//提供了一个供给发送前端ajax的方法
public String index() throws Exception{
​
//      1.访问service层的方法
        List<StartPage> sp = (List<StartPage>) startpageservice.findStartImage();
//      2.将数据放回给前端
        Gson gson = new Gson();
        String json = gson.toJson(sp);
        ServletActionContext.getResponse().setContentType("application/json;charset=utf-8");
        ServletActionContext.getResponse().getWriter().write(json);
        return null;
    }
}