MyBatis SpringMVC整合实现步骤详解

1、添加spring相关jar包

2、配置ehcache jar包。

3、添加ehcache mybatis 适配器jar包（在mybatis官网）

4、添加spring mybatis 适配器jar包（在mybatis）官网

5、pom.xml

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
 <modelVersion>4.0.0</modelVersion>
 <groupId>com.ntjr.mybatisSpring</groupId>
 <artifactId>mybatisSpring</artifactId>
 <version>0.0.1-SNAPSHOT</version>
 <packaging>war</packaging>
 <properties>
   <mybatis_version>3.4.2</mybatis_version>
   <mysql_connector_version>5.1.38</mysql_connector_version>
   <org.springframework>4.3.7.RELEASE</org.springframework>
 </properties>
 <dependencies>
   <!-- https://mvnrepository.com/artifact/org.mybatis/mybatis -->
   <dependency>
     <groupId>org.mybatis</groupId>
     <artifactId>mybatis</artifactId>
     <version>${mybatis_version}</version>
   </dependency>

<!-- https://mvnrepository.com/artifact/mysql/mysql-connector-java -->
   <dependency>
     <groupId>mysql</groupId>
     <artifactId>mysql-connector-java</artifactId>
     <version>${mysql_connector_version}</version>
   </dependency>
   <!-- https://mvnrepository.com/artifact/log4j/log4j -->
   <dependency>
     <groupId>log4j</groupId>
     <artifactId>log4j</artifactId>
     <version>1.2.16</version>
   </dependency>
   <!-- https://mvnrepository.com/artifact/org.springframework/spring-webmvc -->
   <dependency>
     <groupId>org.springframework</groupId>
     <artifactId>spring-webmvc</artifactId>
     <version>${org.springframework}</version>
   </dependency>
   <!-- https://mvnrepository.com/artifact/org.springframework/spring-tx -->
   <dependency>
     <groupId>org.springframework</groupId>
     <artifactId>spring-tx</artifactId>
     <version>${org.springframework}</version>
   </dependency>
   <dependency>
     <groupId>org.springframework</groupId>
     <artifactId>spring-jdbc</artifactId>
     <version>${org.springframework}</version>
   </dependency>
   <dependency>
     <groupId>org.springframework</groupId>
     <artifactId>spring-orm</artifactId>
     <version>${org.springframework}</version>
   </dependency>
   <!-- https://mvnrepository.com/artifact/org.aopalliance/com.springsource.org.aopalliance -->
   <dependency>
     <groupId>org.aopalliance</groupId>
     <artifactId>com.springsource.org.aopalliance</artifactId>
     <version>1.0.0</version>
   </dependency>
   <!-- https://mvnrepository.com/artifact/net.sourceforge.cglib/com.springsource.net.sf.cglib -->
   <dependency>
     <groupId>net.sourceforge.cglib</groupId>
     <artifactId>com.springsource.net.sf.cglib</artifactId>
     <version>2.2.0</version>
   </dependency>

<!-- https://mvnrepository.com/artifact/org.aspectj/com.springsource.org.aspectj.weaver -->
   <dependency>
     <groupId>org.aspectj</groupId>
     <artifactId>com.springsource.org.aspectj.weaver</artifactId>
     <version>1.6.10.RELEASE</version>
   </dependency>

<!-- https://mvnrepository.com/artifact/com.mchange/c3p0 -->
   <dependency>
     <groupId>com.mchange</groupId>
     <artifactId>c3p0</artifactId>
     <version>0.9.5.2</version>
   </dependency>
   <dependency>
     <groupId>org.mybatis.caches</groupId>
     <artifactId>mybatis-ehcache</artifactId>
     <version>1.1.0</version>
   </dependency>

<!-- https://mvnrepository.com/artifact/org.mybatis/mybatis-spring -->
   <dependency>
     <groupId>org.mybatis</groupId>
     <artifactId>mybatis-spring</artifactId>
     <version>1.3.1</version>
   </dependency>

<!-- https://mvnrepository.com/artifact/commons-logging/commons-logging -->
   <dependency>
     <groupId>commons-logging</groupId>
     <artifactId>commons-logging</artifactId>
     <version>1.2</version>
   </dependency>

<!-- https://mvnrepository.com/artifact/org.apache.taglibs/taglibs-standard-impl -->
   <dependency>
     <groupId>org.apache.taglibs</groupId>
     <artifactId>taglibs-standard-impl</artifactId>
     <version>1.2.5</version>
   </dependency>
   <!-- https://mvnrepository.com/artifact/org.apache.taglibs/taglibs-standard-impl -->
   <dependency>
     <groupId>org.apache.taglibs</groupId>
     <artifactId>taglibs-standard-spec</artifactId>
     <version>1.2.5</version>
   </dependency>
 </dependencies>
</project>

6、applicationContext.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:context="http://www.springframework.org/schema/context"
 xmlns:mybatis-spring="http://mybatis.org/schema/mybatis-spring"
 xmlns:tx="http://www.springframework.org/schema/tx"
 xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
   http://mybatis.org/schema/mybatis-spring http://mybatis.org/schema/mybatis-spring-1.2.xsd
   http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd
   http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd">

<!-- Spring希望管理所有的业务逻辑组件，等。。。 -->
 <context:component-scan base-package="com.atguigu.mybatis">
   <context:exclude-filter type="annotation"
     expression="org.springframework.stereotype.Controller" />
 </context:component-scan>

<!-- 引入数据库的配置文件 -->
 <context:property-placeholder location="classpath:dbconfig.properties" />
 <!-- Spring用来控制业务逻辑。数据源、事务控制、aop -->
 <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
   <property name="jdbcUrl" value="${jdbc.url}"></property>
   <property name="driverClass" value="${jdbc.driver}"></property>
   <property name="user" value="${jdbc.username}"></property>
   <property name="password" value="${jdbc.password}"></property>
 </bean>
 <!-- spring事务管理 -->
 <bean id="dataSourceTransactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
   <property name="dataSource" ref="dataSource"></property>
 </bean>

<!-- 开启基于注解的事务 -->
 <tx:annotation-driven transaction-manager="dataSourceTransactionManager"/>

<!--
 整合mybatis
   目的：1、spring管理所有组件。mapper的实现类。
       service==>Dao  @Autowired:自动注入mapper；
     2、spring用来管理事务，spring声明式事务
 -->
 <!--创建出SqlSessionFactory对象 -->
 <bean id="sqlSessionFactoryBean" class="org.mybatis.spring.SqlSessionFactoryBean">
   <property name="dataSource" ref="dataSource"></property>
   <!-- configLocation指定全局配置文件的位置 -->
   <property name="configLocation" value="classpath:mybatis-config.xml"></property>
   <!--mapperLocations: 指定mapper文件的位置-->
   <property name="mapperLocations" value="classpath:mybatis/mapper/*.xml"></property>
 </bean>

<!--配置一个可以进行批量执行的sqlSession -->
 <bean id="sqlSession" class="org.mybatis.spring.SqlSessionTemplate">
   <constructor-arg name="sqlSessionFactory" ref="sqlSessionFactoryBean"></constructor-arg>
   <constructor-arg name="executorType" value="BATCH"></constructor-arg>
 </bean>

<!-- 扫描所有的mapper接口的实现，让这些mapper能够自动注入；
 base-package：指定mapper接口的包名
  -->
 <mybatis-spring:scan base-package="com.atguigu.mybatis.dao"/>
 <!-- <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
   <property name="basePackage" value="com.atguigu.mybatis.dao"></property>
 </bean> -->

</beans>

7、mybatis-config.xml

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE configuration
PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
"http://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration>
 <settings>
   <setting name="mapUnderscoreToCamelCase" value="true" />
   <setting name="jdbcTypeForNull" value="NULL" />

<!--显式的指定每个我们需要更改的配置的值，即使他是默认的。防止版本更新带来的问题 -->
   <setting name="cacheEnabled" value="true" />
   <setting name="lazyLoadingEnabled" value="true" />
   <setting name="aggressiveLazyLoading" value="false" />
 </settings>

<databaseIdProvider type="DB_VENDOR">
   <property name="MySQL" value="mysql" />
   <property name="Oracle" value="oracle" />
   <property name="SQL Server" value="sqlserver" />
 </databaseIdProvider>

</configuration>

注意：此处mybatis配置文件中没有配置数据源，数据源由spring负责。

此外还需要ehcache.xml配置文件,Mapper.xml文件。

来源：https://www.cnblogs.com/zhaobingqing/p/7110083.html