【整合目標:在spring的配置文件中配置SqlSessionFactory以及讓mybatis用上spring的聲明式事務】java
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
commons-logging-1.1.1.jar
spring-aop-4.0.0.RELEASE.jar
spring-aspects-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
spring-jdbc-4.0.0.RELEASE.jar
spring-orm-4.0.0.RELEASE.jar
spring-tx-4.0.0.RELEASE.jar
spring-web-4.0.0.RELEASE.jar
spring-webmvc-4.0.0.RELEASE.jarmysql
<?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:aop="http://www.springframework.org/schema/aop" xmlns:context="http://www.springframework.org/schema/context" xmlns:jdbc="http://www.springframework.org/schema/jdbc" 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://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-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/jdbc http://www.springframework.org/schema/jdbc/spring-jdbc-4.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd"> <!-- 掃描包 --> <context:component-scan base-package="com.neuedu"> <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller" /> <!-- 處理全局異常,能夠標記在類上 --> <context:exclude-filter type="annotation" expression="org.springframework.web.bind.annotation.ControllerAdvice" /> </context:component-scan> <!-- 加載外部屬性文件(數據庫驅動) --> <context:property-placeholder location="classpath:jdbc.properties" /> <!-- 配置數據庫加載內容(c3p0) --> <bean id="ComboPooledDataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource"> <property name="user" value="${jdbc.user}"></property> <property name="password" value="${jdbc.password}"></property> <property name="driverClass" value="${jdbc.driver}"></property> <property name="jdbcUrl" value="${jdbc.url}"></property> </bean> <!-- 對於 mybatis 而言,使用的事務管理器是 DataSourceTransactionManager --> <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager"> <property name="dataSource" ref="ComboPooledDataSource" /> </bean> <tx:annotation-driven /> <!-- 配置SqlSessionFactory --> <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"> <property name="dataSource" ref="ComboPooledDataSource"></property> <!-- 配置mybatis配置文件的位置和名稱 --> <property name="configLocation" value="classpath:mytabis-config.xml"></property> </bean> <!-- 掃描接口和sql配置文件 --> <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer"> <property name="basePackage" value="com.neuedu.mapper"></property> </bean> </beans>
mybatis-3.2.8.jarweb
<?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"> <!-- 總控配置文件 --> <configuration> <settings> <!-- 支持數據庫中下劃線命名的參數向項目對象中駝峯式命名的屬性自動匹配 --> <setting name="mapUnderscoreToCamelCase" value="true" /> <!-- 支持懶加載 --> <setting name="lazyLoadingEnabled" value="true"/> </settings> </configuration> </settings> </configuration>
jdbc.user=root jdbc.password=123456 jdbc.url=jdbc:mysql://localhost:3306/mytabis jdbc.driver=com.mysql.jdbc.Driver
c3p0-0.9.1.2.jar
mysql-connector-java-5.1.7-bin.jarajax
cglib-2.2.2.jar
javassist-3.17.1-GA.jar
asm-3.3.1.jarspring
mybatis-spring-1.2.2.jar sql
jackson-all-1.9.11.jar數據庫
log4j-1.2.17.jarexpress
共須要24個jar包!mybatis
<!-- 加載外部屬性文件 --> <context:property-placeholder location="classpath:jdbc.properties" /> <!-- 配置數據庫加載內容(c3p0) --> <bean id="ComboPooledDataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource"> <property name="user" value="${jdbc.user}"></property> <property name="password" value="${jdbc.password}"></property> <property name="driverClass" value="${jdbc.driver}"></property> <property name="jdbcUrl" value="${jdbc.url}"></property> </bean>
<!-- 配置SqlSessionFactory --> <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"> <property name="dataSource" ref="ComboPooledDataSource"></property> <!-- 配置mybatis配置文件的位置和名稱 --> <property name="configLocation" value="classpath:mytabis-config.xml"></property> </bean>
<configuration> <settings> <!-- 支持數據庫中下劃線命名的參數向項目對象中駝峯式命名的屬性自動匹配 --> <setting name="mapUnderscoreToCamelCase" value="true" /> <!-- 支持懶加載 --> <setting name="lazyLoadingEnabled" value="true"/> </settings> </configuration> </settings> </configuration>
注意:幾乎不直接調用 SqlSession 的任何方法.
須要注意的是:Spring的事務處理的是:runtimeException:而編譯時異常是沒有處理的,因此須要
本身單獨設置RollBackFor=Exception.class
eg:FileInputStream input = new FileInputStream(new File("D:\\2323\23.txt"))mvc
例:簡單的對數據庫的操做
EmployeeMapper.java:
public interface EmployeeMapper { public employee getEmployeeById(int id); }
EmployeeMapper.xml:
<select id="getEmployeeById" parameterType="Integer" resultType="com.neuedu.Bean.employee"> select id,last_name,email,gender from tbl_employee where id = #{id} </select>
測試類:
public class smTest { @Test public void test() { ApplicationContext ioc =new ClassPathXmlApplicationContext("Spring.xml"); EmployeeMapper bean = ioc.getBean(EmployeeMapper.class); employee employee = bean.getEmployeeById(10); System.out.println(employee); } }
輸出結果爲:
employee [id=10, lastName=hah, gender=1, email=email]