ssJ框架搭建的流程

ssj框架:

spring springmvc springdatajpa

框架基本认识：

spring:

一个轻量级的ioc和aop的容器框架

	ioc:反转控制,依赖注入,就是将创建管理bean的事情交个spring来做,我们只需要在使用时注入
	aop:面向切面编程就是按条件拦截,加入相应的功能,例如权限验证就是这个原理

springmvc：

springmvc就是做servlet的事情,与spring无缝连接

springdatajpa:

就是对于又一层jpa的封装,底层还是基于实现jpa(规范)的hibernate技术(标准的orm对象关系映射框架)

1.首先配置spring

1.引入头
	 <beans xmlns="http://www.springframework.org/schema/beans"
	   xmlns:context="http://www.springframework.org/schema/context"
	   xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	   xmlns:tx="http://www.springframework.org/schema/tx"
	   xmlns:jpa="http://www.springframework.org/schema/data/jpa"
		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
	    http://www.springframework.org/schema/data/jpa http://www.springframework.org/schema/data/jpa/spring-jpa.xsd=">
2.扫描配置注解的包
<context:component-scan base-package="cn.itsource.aidell.service"/>
3.引入jdbc文件
<context:property-placeholder location="classpath:jdbc.properties"/>
4.<!--连接池-->
<bean name="dataSource" class="org.apache.commons.dbcp.BasicDataSource">
<property name="driverClassName" value="${jdbc.driverClassName}"/>
<property name="url" value="${jdbc.url}"/>
<property name="username" value="${jdbc.username}"/>
<property name="password" value="${jdbc.password}"/>
</bean>
5.<!--集成jpa-->
<bean id="entityManagerFactory"
  class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
<property name="dataSource" ref="dataSource"/>
<!--开启扫描-->
<property name="packagesToScan" value="cn.itsource.aidell.domain"/>
    <property name="jpaVendorAdapter">
        <bean name="hibernateJpaVendorAdapter" class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter">
            <!--方言-->
            <property name="databasePlatform" value="org.hibernate.dialect.MySQLDialect"/>
            <!--建表策略 这里面只有update fasle为不开启-->
            <property name="generateDdl" value="false"/>
            <!--展示sql-->
            <property name="showSql" value="true"/>
        </bean>
    </property>
</bean>

6. <!--开启事务-->
<bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager">
<property name="entityManagerFactory" ref="entityManagerFactory"/>
</bean>
7.<!--springdatajpa配置-->
	<jpa:repositories base-package="cn.itsource.aidell.repository"
    transaction-manager-ref="transactionManager"
    entity-manager-factory-ref="entityManagerFactory"
    factory-class="cn.itsource.aidell.repository.BaseRepositoryFactoryBean"/>
8.<!--开启事务注解支持-->
<tx:annotation-driven transaction-manager="transactionManager"/>
9.<!--引入springmvc配置文件-->
<import resource="classpath:applicationContext-shiro.xml"/>

springmvc配置:

1.<!--同样引入相应头 -->
2.<!--扫描有配置注解相应的包-->
<context:component-scan base-package="cn.itsource.aidell.web.controller"/>
<context:component-scan base-package="cn.afterturn.easypoi.view" />
<context:component-scan base-package="cn.itsource.aidell.common"/>
3.<!--静态访问-->
 <mvc:default-servlet-handler/>
4.<!--对mvc注解的支持-->
 <mvc:annotation-driven>
     <mvc:message-converters>
         <bean class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter">
             <property name="supportedMediaTypes">
                 <list>
                     <value>application/json; charset=UTF-8</value>
                     <value>application/x-www-form-urlencoded; charset=UTF-8</value>
                 </list>
             </property>
             <!-- No serializer:配置 objectMapper 为自定义扩展后的 CustomMapper,解决了返回对象有关系对象的报错问题 -->
             <property name="objectMapper">
                 <bean class="cn.itsource.aidell.common.CustomMapper"></bean>
             </property>
         </bean>
     </mvc:message-converters>
 </mvc:annotation-driven>
5.<!--视图解析器-->
 <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
     <property name="prefix" value="/WEB-INF/views/"/>
     <property name="suffix" value=".jsp"/>
 </bean>
 <bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
6.<!-- 设置上传文件的最大尺寸为1MB -->
 <property name="maxUploadSize">
     <value>1048576</value>
     </property>
 </bean>
7.<!-- 设置视图解析器优先级导出时不配置会被视图解析器拦截-->
 <!--p就是伪属性-->
 <bean id="beanNameViewResolver" class="org.springframework.web.servlet.view.BeanNameViewResolver" p:order="0" />

配置web.xml

<?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">

<!--读取springmvc配置文件-->
<context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>classpath:aplicationContext.xml</param-value>
</context-param>

<!--监听器spring-->
<listener>
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>

<!--核心控制器-->
<servlet>
    <servlet-name>dispatcherServlet</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <!--告诉控制器找到相应的springmvc配置文件-->
    <init-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>classpath:aplicationContext-mvc.xml</param-value>
    </init-param>
    <load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
    <servlet-name>dispatcherServlet</servlet-name>
    <url-pattern>/</url-pattern>
</servlet-mapping>

<!--  配置解决中文乱码的问题 -->
<filter>
    <filter-name>characterEncodingFilter</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>
    <init-param>
        <param-name>forceEncoding</param-name>
        <param-value>true</param-value>
    </init-param>
</filter>
<filter-mapping>
    <filter-name>characterEncodingFilter</filter-name>
    <url-pattern>/*</url-pattern>
</filter-mapping>

<!-- 加上OpenEntityManager -->
<filter>
    <filter-name>openEntity</filter-name>
    <filter-class>org.springframework.orm.jpa.support.OpenEntityManagerInViewFilter</filter-class>
</filter>
<filter-mapping>
    <filter-name>openEntity</filter-name>
    <url-pattern>/*</url-pattern>
</filter-mapping>

<!--扫描-->
<filter>
    <filter-name>shiroFilter</filter-name>
    <filter-class>org.springframework.web.filter.DelegatingFilterProxy</filter-class>
    <init-param>
        <param-name>targetFilterLifecycle</param-name>
        <param-value>true</param-value>
    </init-param>
</filter>
<filter-mapping>
    <filter-name>shiroFilter</filter-name>
    <url-pattern>/*</url-pattern>
</filter-mapping>
</web-app>