spring加載資源檔案中classpath*與classpath的差別

在Spring和MyBitis繼承的時候,配置mapperLocations.一開始配置是這樣的.

需要加載路徑為com/eloan/base/mapper和com/eloan/bu/mapper/business下的所有mapper檔案

<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
		<property name="dataSource" ref="dataSource" />
		<property name="configLocation" value="classpath:mybatis-config.xml" />
		<property name="typeAliasesPackage" value="com.eloan.base.domain;com.eloan.business.domain" />
		<property name="mapperLocations" value="classpath:com/eloan/*/mapper/*Mapper.xml;" />
</bean>
           

結果一直報com/eloan/base/mapper下的mapper檔案的某個方法找不到.

錯誤:Invalid bound statement (not found)

修改成這樣就可以找到了.

<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
		<property name="dataSource" ref="dataSource" />
		<property name="configLocation" value="classpath:mybatis-config.xml" />
		<property name="typeAliasesPackage" value="com.eloan.base.domain;com.eloan.business.domain" />
		<property name="mapperLocations" value=classpath*:com/eloan/*/mapper/*Mapper.xml;" />
</bean>
           

原因是classpath:和classpath*:在spring加載資源的時候是不同的.

classpath:隻能加載找到的第一個資源檔案.(上面隻比對了com/eloan/bu/mapper/business下的mapper檔案,而com/eloan/base/mapper就陪忽略了)

classpath*:能加載多個路徑下的資源檔案.(com/eloan/bu/mapper/business和com/eloan/base/mapper都被加載進來了.)