我用spring3.0.6+mybatis3.0.6+mybatis-spring1.0.2做了一个demo,我把数据库连接驱动放在src下,但是我在spring配置文件中加上 <context:property-placeholder location="classpath:jdbc.properties" />,dataSource配置如下:
01 |
< bean id = "dataSource" class = "com.mchange.v2.c3p0.ComboPooledDataSource" destroy-method = "close" > |
07 |
< property name = "driverClass" value = "${jdbc.driverClass}" /> |
08 |
< property name = "jdbcUrl" value = "${jdbc.jdbcUrl}" /> |
09 |
< property name = "user" value = "${jdbc.user}" /> |
10 |
< property name = "password" value = "${jdbc.password}" /> |
抛出异常如下:
1 |
2011-11-19 20:37:57 WARN [com.mchange.v2.c3p0.DriverManagerDataSource:107] - Could not load driverClass ${jdbc.driverClass} |
2 |
java.lang.ClassNotFoundException: ${jdbc.driverClass} |
而把上面那段注释的打开,相当于写死在配置文件中就正常。从上面异常我只能看出没加载
属性文件成功,属性文件如下:
02 |
jdbc.driverClass=oracle.jdbc.driver.OracleDriver |
03 |
jdbc.jdbcUrl=jdbc:oracle:thin: @10 .1. 1.3 : 1521 :orcl |
06 |
jdbc.initialPoolSize= 5 |
09 |
jdbc.acquireIncrement= 5 |
我是maven搭的,全放在/src/main/resources下,哪位帮我找找原因,谢谢!
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楼上的解决方案比较一般,在3.1.1版本中配置的时候提供了以下:
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="basePackage" value="com.xxxx.dal.mapper" />
<property name="sqlSessionFactoryBeanName" value="ysSqlSessionFactory" />
<!-- <property name="sqlSessionFactory" ref="ysSqlSessionFactory"></property> -->
</bean>
改用sqlSessionFactoryBeanName注入就没有问题(不要使用sqlSessionFactory属性注入,使用sqlSessionFactoryBeanName注入),因为这时不会立即初始化sqlSessionFactory,传入的只是名字,非bean,所以不会引发提前初始化问题。。
http://www.oschina.net/question/188964_32305