[Java][MyBatis]mapperLocations属性通配符的使用 - 王德封-逐浪 - CSDN博客

mapperLocations属性通配符的使用

示例:

    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">        <property name="dataSource" ref="dataSource" />        <property name="configLocation" value="classpath:sqlMapConfig.xml"></property>        <property name="mapperLocations" value="classpath*:com/huaxin/**/*Mapper.xml"></property>    </bean>

注意点:在classpath后面的*必不可少,缺少型号的话后面的通配符不起作用。

                **表示可以表示任意多级目录,如:上述配置可以查到【com/huaxin/framework/system/dao/UserDaoMapper.xml】

                *表示多个任意字符

               缺少classpath后面的*会报以下的错误:

org.mybatis.spring.MyBatisSystemException: nested exception is org.apache.ibatis.exceptions.PersistenceException: 
### Error querying database.  Cause: java.lang.IllegalArgumentException: Mapped Statements collection does not contain value for framework.system.dao.UserDao.getNextUserId_MySQL
### Cause: java.lang.IllegalArgumentException: Mapped Statements collection does not contain value for framework.system.dao.UserDao.getNextUserId_MySQL
    at org.mybatis.spring.MyBatisExceptionTranslator.translateExceptionIfPossible(MyBatisExceptionTranslator.java:75)
    at org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:371)
    at com.sun.proxy.$Proxy18.selectOne(Unknown Source)
    at org.mybatis.spring.SqlSessionTemplate.selectOne(SqlSessionTemplate.java:163)
    at com.huaxin.framework.core.dao.impl.BaseDaoImpl.selectOne(BaseDaoImpl.java:298)
    at com.huaxin.framework.system.dao.impl.UserDaoImpl.getNextUserId(UserDaoImpl.java:41)

Original url: Access
Created at: 2019-04-25 17:49:55
Category: default
Tags: none

请先后发表评论
  • 最新评论
  • 总共0条评论