Spring整合MyBatis

一、参考文档（参考此文档后成功整合）

http://my.oschina.net/matol/blog/104152

 

二、Spring、mysql数据库、MyBatis版本

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59

<!--① 依赖的Spring模块类库 -->         <dependency>             <groupId>org.springframework</groupId>             <artifactId>spring-context</artifactId>             <version>3.1.1.RELEASE</version>         </dependency>         <dependency>             <groupId>org.springframework</groupId>             <artifactId>spring-beans</artifactId>             <version>3.1.1.RELEASE</version>         </dependency>         <dependency>             <groupId>org.springframework</groupId>             <artifactId>spring-web</artifactId>             <version>3.1.1.RELEASE</version>         </dependency>         <dependency>             <groupId>org.springframework</groupId>             <artifactId>spring-webmvc</artifactId>             <version>3.1.1.RELEASE</version>         </dependency>         <dependency>             <groupId>org.springframework</groupId>             <artifactId>spring-test</artifactId>             <version>3.1.1.RELEASE</version>         </dependency>         <dependency>             <groupId>org.springframework</groupId>             <artifactId>spring-jdbc</artifactId>             <version>3.1.1.RELEASE</version>         </dependency>         <dependency>             <groupId>org.springframework</groupId>             <artifactId>spring-orm</artifactId>             <version>3.1.1.RELEASE</version>         </dependency>   <dependency>             <groupId>commons-dbcp</groupId>             <artifactId>commons-dbcp</artifactId>             <version>1.4</version>         </dependency>         <dependency>             <groupId>mysql</groupId>             <artifactId>mysql-connector-java</artifactId>             <version>5.1.34</version>         </dependency>                <!-- 数据源 -->         <dependency>             <groupId>org.mybatis</groupId>             <artifactId>mybatis</artifactId>             <version>3.1.1</version>         </dependency>         <dependency>             <groupId>org.mybatis</groupId>             <artifactId>mybatis-spring</artifactId>             <version>1.2.0</version>         </dependency>

三、配置文件（均在resources文件夹中）

1、spring-mvc.xml

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57

<?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"     xmlns:p="http://www.springframework.org/schema/p"     xmlns:tx="http://www.springframework.org/schema/tx"     xmlns:aop="http://www.springframework.org/schema/aop"     xsi:schemaLocation="         http://www.springframework.org/schema/beans         http://www.springframework.org/schema/beans/spring-beans.xsd         http://www.springframework.org/schema/tx         http://www.springframework.org/schema/tx/spring-tx-3.0.xsd         http://www.springframework.org/schema/aop         http://www.springframework.org/schema/aop/spring-aop-3.0.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"         default-init-method="init"         >       <!-- 扩充了注解驱动，可以将请求参数绑定到控制器参数 -->     <mvc:annotation-driven />       <context:component-scan base-package="com.fly" />       <!-- 引入jdbc配置文件 -->     <context:property-placeholder location="classpath:jdbc.properties" />     <!--创建jdbc数据源 -->     <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>     <!-- (事务管理)transaction manager, use JtaTransactionManager for global tx -->     <bean id="transactionManager"         class="org.springframework.jdbc.datasource.DataSourceTransactionManager">         <property name="dataSource" ref="dataSource" />     </bean>       <!-- 创建SqlSessionFactory，同时指定数据源 -->     <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">         <property name="configLocation" value="classpath:mybatis.xml"></property>         <property name="dataSource" ref="dataSource" />     </bean>       <!-- 可通过注解控制事务 -->     <tx:annotation-driven transaction-manager="transactionManager" />       <!-- Mapper接口所在包名，Spring会自动查找其下的Mapper -->     <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">         <property name="basePackage" value="com.fly.dao" />     </bean> </beans>

2、jdbc.properties

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

#数据库连接 jdbc.driverClassName=com.mysql.jdbc.Driver jdbc.url=jdbc:mysql://127.0.0.1:3306/hr?useUnicode=true&characterEncoding=UTF-8 jdbc.username=root jdbc.password=root jdbc.minPoolSize=5 jdbc.maxPoolSize=20 jdbc.maxIdleTime=1800 jdbc.acquireIncrement=2 jdbc.maxStatements=50 jdbc.initialPoolSize=10 jdbc.idleConnectionTestPeriod=1800 jdbc.acquireRetryAttempts=2 cpool.automaticTestTable=Test cpool.preferredTestQuery=select 1 from Test cpool.testConnectionOnCheckin=true

3、mybatis.xml(mapper节点对应xml文件）

1 2 3 4 5 6 7 8 9 10 11 12

<?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>      <!-- <typeAliases>          <typeAlias alias="Student" type="com.matol.entity.User" />      </typeAliases>   -->              <mappers>          <mapper resource="com/fly/dao/UserMapper.xml" />      </mappers>  </configuration>

四、Dao层

1、Java文件

1 2 3 4 5 6 7

package com.fly.dao; import org.springframework.stereotype.Repository;   @Repository public interface UserMapper {     Integer count(); }

2、xml文件(xml中的namespace对应java文件的完整目录）

1 2 3 4 5 6 7 8

<?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="com.fly.dao.UserMapper">     <select id="count" resultType="Integer">         SELECT count(*) FROM operatelog     </select> </mapper

五、Service层

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17

package com.fly.service;   import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Service;   import com.fly.dao.UserMapper;   @Service public class UserService {       @Autowired     private UserMapper userMapper;       public int count() {         return this.userMapper.count();     } }