SSM框架集成静态WEB

最新推荐文章于 2021-08-17 16:32:47 发布

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本文详细介绍如何使用Spring、Spring MVC及MyBatis进行项目整合，包括配置数据源、创建SqlSessionFactory、配置事务管理等关键步骤，并展示了核心配置文件applicationContext.xml及web.xml的具体设置。

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一、导包：

1、Spring：

2、SpringMvc

3、MyBatis

二、配置资源文件

1、properties文件

     jdbc.driverClassName=com.mysql.jdbc.Driver
     jdbc.url=jdbc:mysql:///mybatis
     jdbc.username=root
     jdbc.password=123456

2、配置applicationContext.xml

①、引入--properties文件

②、创建链接池（数据源）

③、创建SqlSessionFactoryBean（引入数据源，创建所有mapper的xml文件映射，配置别名）

④、注入映射器（通过扫描包获取多个）

----------------------------------测试一波，验证配置----------------------------------------------

⑤、配置事务管理（service层配置事务@Transactional，查询不需要事物

@Transactional(readOnly = true,propagation = Propagation.SUPPORTS)）

<?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">

    <!--扫描service层-->
    <!--<context:component-scan base-package="cn.wutao.ssm.service"/>-->
    <context:component-scan base-package="cn.wutao.ssm.service" />

    <!--引入jdbc.properties-->
    <context:property-placeholder location="classpath:jdbc.properties"/>

    <!--创建链接池-->
    <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
        <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>

    <!--创建SqlSessionFactory-->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="dataSource"/>

        <!--xml映射,*:表示所有-->
        <property name="mapperLocations" value="classpath:cn.wutao.ssm.mapper/*.xml"/>

        <!--设置别名-->
        <property name="typeAliasesPackage" value="cn.wutao.ssm.domain"/>

    </bean>

    <!--映射器-->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="basePackage" value="cn.wutao.ssm.mapper" />
    </bean>

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

    <tx:annotation-driven transaction-manager="transactionManager"/>

</beans>

mapper映射文件配置（用于写sql）

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
        "http://mybatis.org/dtd/mybatis-3-mapper.dtd" >

<mapper namespace="cn.wutao.ssm.mapper.UserMapper" >

    <select id="findAll" resultType="user">
        SELECT * FROM user
    </select>

    <insert id="save" parameterType="user">
        INSERT INTO user (name) values (#{name})
    </insert>
</mapper>

3、配置web.xml

①、核心控制器

②、引入spring核心配置文件

③、监听器配置

④、编码

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://java.sun.com/xml/ns/javaee"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
		  http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
         version="3.0">

    <!--引入Spring核心配置文件-->
    <context-param>
        <param-name>contextConfigLocations</param-name>
        <param-value>classpath:applicationContext.xml</param-value>
    </context-param>

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

    <!--核心控制器-->
    <servlet>
        <servlet-name>dispatherServlet</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <init-param>
            <param-name>contextConfigLocations</param-name>
            <param-value>classpath:applicationContext-mvc.xml</param-value>
        </init-param>
        <load-on-startup>1</load-on-startup>
    </servlet>
    <servlet-mapping>
        <servlet-name>dispatherServlet</servlet-name>
        <url-pattern>/</url-pattern>
    </servlet-mapping>


    <!--编码-->
    <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>
</web-app>

4、配置applicationContext-mvc.xml

①、扫描controller层

②、静态资源放行

③、视图解析器

④、支持springmvc的注解

⑤、上传解析器

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:context="http://www.springframework.org/schema/context"
       xmlns:mvc="http://www.springframework.org/schema/mvc"
       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/mvc
       http://www.springframework.org/schema/mvc/spring-mvc.xsd">

    <!--扫描controller-->
    <context:component-scan base-package="cn.wutao.ssm.controller"/>
    <!--静态资源放行-->
    <mvc:default-servlet-handler/>
    <!--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>
    <!--支持springMVC注解-->
    <mvc:annotation-driven/>
    <!--上传解析器-->
    <bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
        <property name="maxUploadSize">
            <value>1048576</value>
        </property>
    </bean>

</beans>