【串线篇】Mybatis之SSM整合

SSM；Spring+SpringMVC+MyBatis

建立Java web项目

一、导包

1）、Spring：

【aop核心】

com.springsource.net.sf.cglib-2.2.0.jar

com.springsource.org.aopalliance-1.0.0.jar

com.springsource.org.aspectj.weaver-1.6.8.RELEASE.jar

spring-aspects-4.0.0.RELEASE.jar

【ioc核心】

commons-logging-1.1.3.jar

spring-aop-4.0.0.RELEASE.jar

spring-beans-4.0.0.RELEASE.jar

spring-context-4.0.0.RELEASE.jar

spring-core-4.0.0.RELEASE.jar

spring-expression-4.0.0.RELEASE.jar

【jdbc核心】

spring-jdbc-4.0.0.RELEASE.jar

spring-orm-4.0.0.RELEASE.jar

spring-tx-4.0.0.RELEASE.jar

【测试】

spring-test-4.0.0.RELEASE.jar

2）、SpringMVC：

【ajax】

jackson-annotations-2.1.5.jar

jackson-core-2.1.5.jar

jackson-databind-2.1.5.jar

【数据校验】

hibernate-validator-5.0.0.CR2.jar

hibernate-validator-annotation-processor-5.0.0.CR2.jar

classmate-0.8.0.jar

jboss-logging-3.1.1.GA.jar

validation-api-1.1.0.CR1.jar

【上传下载】

commons-fileupload-1.2.1.jar

commons-io-2.0.jar

【jstl-jsp标准标签库】

jstl.jar

standard.jar

【验证码】

kaptcha-2.3.2.jar

【springmvc核心】

spring-web-4.0.0.RELEASE.jar

spring-webmvc-4.0.0.RELEASE.jar

 3）、MyBatis

【mybatis核心】

mybatis-3.4.1.jar

【和Spring整合包】

mybatis-spring-1.3.0.jar

【日志】

log4j-1.2.17.jar

【ehcache整合】

ehcache-core-2.6.8.jar

mybatis-ehcache-1.0.3.jar

slf4j-api-1.7.21.jar

slf4j-log4j12-1.7.21.jar

 4）、其他的

mysql-connector-java-5.1.37-bin.jar

c3p0-0.9.1.2.jar

二、写配置

0、web.xml配置：

<?xml version="1.0" encoding="UTF-8"?>

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

  <display-name>7.SSM</display-name>

  <welcome-file-list>

    <welcome-file>index.jsp</welcome-file>

  </welcome-file-list>

  <!-- 配置Spring容器启动： -->

  <!-- needed for ContextLoaderListener -->

    <context-param>

        <param-name>contextConfigLocation</param-name>

        <!--指定spring配置文件位置  -->

        <param-value>classpath:spring/applicationContext.xml</param-value>

    </context-param>

    <!-- Bootstraps the root web application context before servlet initialization -->

    <listener>

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

    </listener>

    <!-- 配置springmvc的前端控制器 -->

    <!-- The front controller of this Spring Web application, responsible for handling all application requests -->

    <servlet>

        <servlet-name>springDispatcherServlet</servlet-name>

        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>

        <init-param>

            <param-name>contextConfigLocation</param-name>

            <param-value>classpath:spring/applicationContext-mvc.xml</param-value>

        </init-param>

        <load-on-startup>1</load-on-startup>

    </servlet>

    <!-- Map all requests to the DispatcherServlet for handling -->

    <servlet-mapping>

        <servlet-name>springDispatcherServlet</servlet-name>

        <url-pattern>/</url-pattern>

    </servlet-mapping>

    <!--  两个标准配置-->

    <!-- 字符编码 -->

    <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>

    <!-- 支持Rest风格的过滤器 -->

    <filter>

        <filter-name>HiddenHttpMethodFilter</filter-name>

        <filter-class>org.springframework.web.filter.HiddenHttpMethodFilter</filter-class>

    </filter>

    <filter-mapping>

        <filter-name>HiddenHttpMethodFilter</filter-name>

        <url-pattern>/*</url-pattern>

    </filter-mapping>

</web-app>

1、spring配置：

2、springmvc的配置：

<?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:mvc="http://www.springframework.org/schema/mvc"
    xsi:schemaLocation="http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd
        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-4.0.xsd">

    <!-- SpringMVC只扫描控制器；禁用默认的规则 -->
    <context:component-scan base-package="com.atguigu" use-default-filters="false">
        <context:include-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
    </context:component-scan>

    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix" value="/WEB-INF/pages/"></property>
        <property name="suffix" value=".jsp"></property>
    </bean>

    <!--配置文件上传解析器  -->
    <bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
        <property name="defaultEncoding" value="utf-8"></property>
        <property name="maxUploadSize" value="#{1024*1024*20}"></property>
    </bean>

    <!-- 扫静态资源 -->
    <mvc:default-servlet-handler/>
    <!-- 扫动态  -->
    <mvc:annotation-driven></mvc:annotation-driven>

</beans>

3、mybatis的配置：

整合步骤：导入整合包；（能将dao的实现加入到容器中）

整合的关键配置其实实在spring.xml中的

<!--2、配置JdbcTemplate操作数据库。pass  -->
    <!--3、配置使用mybatis操作数据库  -->
    <!-- 可以根据配置文件得到sqlSessionFactory -->
    <bean id="sqlSessionFactoryBean" class="org.mybatis.spring.SqlSessionFactoryBean">
        <!-- 指定配置文件位置 -->
        <property name="configLocation" value="classpath:mybatis/mybatis-config.xml"></property>
        <property name="dataSource" ref="ds"></property>
        <!-- 指定xml映射文件的位置 -->
        <property name="mapperLocations" value="classpath:mybatis/mapper/*.xml"></property>
    </bean>
    <!-- 我们要把每一个dao接口的实现加入到ioc容器； -->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <!-- 指定dao接口所在的包 -->
        <property name="basePackage" value="com.atguigu.dao"></property>
    </bean>

4、其他小家伙的配置：