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SSM整合

2018/08/05 SpringMVC 共 6919 字，约 20 分钟

参考博客

手把手教你整合最优雅 SSM 框架：SpringMVC + Spring + MyBatis

SSM+maven 实现图书管理系统

创建模块，选择 web-application

添加 maven 支持

添加依赖

    mysql驱动
    c3p0数据源
    mybatis
    spring(tx|aop|context)
    spring context support
    mybatis-spring
    spring mvc
    junit
    jstl
    sping jdbc
    aspectjweaver

配置 web.xml

首先配置 web.xml，配置 spring-mybatix，文件引入；配置编码过滤器，UTF-8；配置 spring-mvc,就是这个 servlet

    <!-- Spring和mybatis的配置文件 -->
    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>classpath:spring/spring-mybatis.xml</param-value>
    </context-param>

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

    <!-- 编码过滤器 -->
    <filter>
        <filter-name>encodingFilter</filter-name>
        <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
        <async-supported>true</async-supported>
        <init-param>
            <param-name>encoding</param-name>
            <param-value>UTF-8</param-value>
        </init-param>
    </filter>
    <filter-mapping>
        <filter-name>encodingFilter</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>

    <!-- Spring MVC servlet -->
    <servlet>
        <servlet-name>SpringMVC</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>classpath:spring/spring-mvc.xml</param-value>
        </init-param>
        <load-on-startup>1</load-on-startup>
        <async-supported>true</async-supported>
    </servlet>
    <servlet-mapping>
        <servlet-name>SpringMVC</servlet-name>
        <!-- 此处可以可以配置成*.do，对应struts的后缀习惯 -->
        <url-pattern>/</url-pattern>
    </servlet-mapping>

配置 spring-mybatis.xml

首先配置头部

配置 jdbc 文件

配置数据源

配置 sqlSessionFactory，引入数据源和 map.xml 文件

配置 DAO 接口，引入扫描接口的包和 sqlSessionFactory

开启事务

<?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:context="http://www.springframework.org/schema/context"
       xmlns:tx="http://www.springframework.org/schema/tx"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
                        http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
                        http://www.springframework.org/schema/context
                        http://www.springframework.org/schema/context/spring-context-4.0.xsd

                         http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd">
    <!-- 这里排除扫描Controller -->
    <context:component-scan base-package="com.amayadream.webchat.*" >
        <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
    </context:component-scan>

    <!-- 引入jdbc配置文件 -->
    <bean id="propertyConfigurer" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
        <property name="location" value="classpath:config/jdbc.properties" />
    </bean>

    <!-- 配置数据源 -->
    <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
        <property name="driverClassName" value="${driver}" />
        <property name="url" value="${url}" />
        <property name="username" value="${username}" />
        <property name="password" value="${password}" />
        <!-- 初始化连接大小 -->
        <property name="initialSize" value="${initialSize}"/>
        <!-- 连接池最大数量 -->
        <property name="maxActive" value="${maxActive}"/>
        <!-- 连接池最大空闲 -->
        <property name="maxIdle" value="${maxIdle}"/>
        <!-- 连接池最小空闲 -->
        <property name="minIdle" value="${minIdle}"/>
        <!-- 获取连接最大等待时间 -->
        <property name="maxWait" value="${maxWait}"/>
    </bean>

    <!-- spring和MyBatis完美整合，不需要mybatis的配置映射文件 -->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <!-- 引入数据源 -->
        <property name="dataSource" ref="dataSource" />
        <!-- 自动扫描mapping.xml文件 -->
        <property name="mapperLocations" value="classpath:com/amayadream/webchat/mapping/*.xml"/>
    </bean>

    <!-- DAO接口所在包名，Spring会自动查找其下的类 -->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="basePackage" value="com.amayadream.webchat.dao" />
        <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>
    </bean>

    <!-- 开启事务 -->
    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSource" />
    </bean>

    <!-- 开启@Transactional实现注解事务 -->
    <tx:annotation-driven transaction-manager="transactionManager" proxy-target-class="true"/>

</beans>

配置 spring-mvc.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:p="http://www.springframework.org/schema/p"
       xmlns:context="http://www.springframework.org/schema/context"
       xmlns:mvc="http://www.springframework.org/schema/mvc"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
                        http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
                        http://www.springframework.org/schema/context
                        http://www.springframework.org/schema/context/spring-context-4.0.xsd
                        http://www.springframework.org/schema/mvc
                        http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd">

    <context:component-scan base-package="com.amayadream.webchat.*" >
        <context:include-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
        <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Service"/>
    </context:component-scan>

    <!-- 视图解析器 -->
    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix" value="/WEB-INF/view/" />
        <property name="suffix" value=".jsp" />
    </bean>

    <mvc:interceptors>
        <!-- 登陆拦截器,负责拦截未登录的操作 -->
        <mvc:interceptor>
            <!-- 需要拦截的地址 -->
            <mvc:mapping path="/**"/>
            <!-- 需要排除拦截的地址 -->
            <mvc:exclude-mapping path="/static/**"/>
            <bean id="loginInterceptor" class="com.amayadream.webchat.interceptor.LoginInterceptor">
                <property name="IGNORE_URI">
                    <list>
                        <value>/user/login</value>
                        <value>/user/logout</value>
                    </list>
                </property>
            </bean>
        </mvc:interceptor>
    </mvc:interceptors>

    <!-- 开启注解模式 -->
    <mvc:annotation-driven/>

    <!-- 静态资源映射 -->
    <mvc:resources mapping="/static/**" location="/static/"/>

    <mvc:resources location="/" mapping="/**/*.html"/>
    <mvc:resources location="/" mapping="/**/*.js"/>
    <mvc:resources location="/" mapping="/**/*.css"/>

    <!-- 配置文件上传 -->
    <bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
        <!-- 默认编码 -->
        <property name="defaultEncoding" value="utf-8" />
        <!-- 文件大小最大值 -->
        <property name="maxUploadSize" value="10485760000" />
        <!-- 内存中的最大值 -->
        <property name="maxInMemorySize" value="40960" />
    </bean>

</beans>

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