整合mybatis3.2.2跟spring3.0.1
NND不停的报错，哥不停的导各种java ，配置文件改的眼花，NND,java程序员看来也挺崩溃的！
<?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:tx="http://www.springframework.org/schema/tx" xmlns:context="http://www.springframework.org/schema/context" xsi:schemaLocation=" http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.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"> <!-- 使用apache的DBCP连接池 --> <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close"> <!-- Connection Info --> <property name="driverClassName" value="com.mysql.jdbc.Driver" /> <property name="url" value="jdbc:mysql://192.168.1.95:3307/myt" /> <property name="username" value="root" /> <property name="password" value="ok" /> <!-- Connection Pooling DBCP --> <property name="initialSize" value="5" /> <property name="maxActive" value="100" /> <property name="maxIdle" value="30" /> <property name="maxWait" value="1000" /> <property name="poolPreparedStatements" value="true" /> <property name="defaultAutoCommit" value="false" /> </bean> <!-- 这里的dataSource要与sqlSessionFactory的dataSource一致，否则事务无效 --> <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager"> <property name="dataSource" ref="dataSource" /> </bean> <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"> <property name="dataSource" ref="dataSource" /> <property name="configLocation" value="classpath:xx/spring/conf-mybatis.xml"></property> </bean> <!-- 注意！这里不要偷懒！。要把userMapper赋给别的.class文件里的一个属性后再使用，否则事务无效。 也就是说当直接创建userMapper的一个class，然后使用IUserDao.insertUser方法的话也可以实现，但是事务将无效。 --> <!-- 这里的mapperInterface需要接口类型 --> <!-- <bean id="userDao" class="org.mybatis.spring.mapper.MapperFactoryBean"> <property name="mapperInterface" value="xx.spring.UserDao" /> <property name="sqlSessionFactory" ref="sqlSessionFactory" /> </bean> --> <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer"> <property name="basePackage" value="xx.spring" /> </bean> <context:component-scan base-package="xx.spring"></context:component-scan> <!-- 使用注解方式的事务 --> <tx:annotation-driven transaction-manager="transactionManager" /> </beans>
<?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>
<!-- 配置mybatis的缓存，延迟加载等等一系列属性 -->
<settings>
<!-- 全局映射器启用缓存 -->
<setting name="cacheEnabled" value="true" />
<!-- 查询时，关闭关联对象即时加载以提高性能 -->
<setting name="lazyLoadingEnabled" value="true" />
<!-- 设置关联对象加载的形态，此处为按需加载字段(加载字段由SQL指 定)，不会加载关联表的所有字段，以提高性能 -->
<setting name="aggressiveLazyLoading" value="false" />
<!-- 对于未知的SQL查询，允许返回不同的结果集以达到通用的效果 -->
<setting name="multipleResultSetsEnabled" value="true" />
<!-- 允许使用列标签代替列名 -->
<setting name="useColumnLabel" value="true" />
<!-- 允许使用自定义的主键值(比如由程序生成的UUID 32位编码作为键值)，数据表的PK生成策略将被覆盖 -->
<!-- <setting name="useGeneratedKeys" value="true" /> -->
<!-- 给予被嵌套的resultMap以字段-属性的映射支持 -->
<setting name="autoMappingBehavior" value="FULL" />
<!-- 对于批量更新操作缓存SQL以提高性能 -->
<setting name="defaultExecutorType" value="BATCH" />
<!-- 数据库超过25000秒仍未响应则超时 -->
<setting name="defaultStatementTimeout" value="25000" />
</settings>
<!-- 全局别名设置，在映射文件中只需写别名，而不必写出整个类路径 -->
<!-- <typeAliases>
<typeAlias alias="TestBean"
type="com.wotao.taotao.persist.test.dataobject.TestBean" />
</typeAliases> -->
<!-- 非注解的sql映射文件配置，如果使用mybatis注解，该mapper无需配置，但是如果mybatis注解中包含@resultMap注解，则mapper必须配置，给resultMap注解使用 -->
<!--
<mappers>
<mapper resource="com/mybatis/mapper/UserMapper.xml" />
</mappers>
-->
</configuration>
<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE mapper PUBLIC "-//ibatis.apache.org//DTD Mapper 3.0//EN" "http://ibatis.apache.org/dtd/ibatis-3-mapper.dtd"> <!-- namespace用于java代码调用时识别指定xml的mapper文件 --> <mapper namespace="xx.spring.UserDao"> <select id="getUserById" parameterType="long" useCache="false" flushCache="true" resultType="xx.mybatis.UserInfo"> SELECT * FROM mytt where id=#{id} </select> </mapper>
package xx.spring; import javax.annotation.Resource; import org.springframework.context.annotation.Scope; import org.springframework.stereotype.Component; import org.springframework.transaction.annotation.Transactional; import xx.mybatis.UserInfo; @Transactional @Component public class UserService { @Resource private UserDao userDao; public UserInfo GetUserById(long id) { System.out.println("GetUserById be Invoke!"); return userDao.getUserById(id); } }
package xx.spring; import xx.mybatis.UserInfo; public abstract interface UserDao { public abstract UserInfo getUserById(long id); }
package xx.spring; import org.springframework.context.ApplicationContext; import org.springframework.context.support.ClassPathXmlApplicationContext; import xx.mybatis.UserInfo; public class SpringTest { /** * @param args */ public static void main(String[] args) { ApplicationContext context=new ClassPathXmlApplicationContext("xx/spring/bb.xml"); for(int i=1;i<30;i++) { UserService userService= (UserService) context.getBean("userService"); UserInfo u= userService.GetUserById(i); System.out.println(userService.hashCode()); } } }
