我有三个在Junit应用程序上下文文件中定义的DataSource
(JDBC)。其中两个需要进行事务管理;使用这两个数据源时,我不必链接任何方法(它们完全相互独立)。春季有多个事务管理器的多个数据源
尽管dataSource3
正在使用但未在相应方法中进行管理,但我在使用单个事务管理器dataSource2
时没有问题。尽管如此,在需要管理单独使用dataSource3
的各种DAO类的方法时,我添加了第二笔交易 - txManager2
。上下文文件包含以下内容:
<context:component-scan base-package="my.pkg" />
<bean id="dataSource1"
class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName" value="oracle.jdbc.OracleDriver" />
<property name="url" value="jdbc:oracle:thin:@host1:1521:dbsid1" />
<property name="username" value="username1" />
<property name="password" value="password1" />
</bean>
<bean id="dataSource2"
class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName" value="oracle.jdbc.OracleDriver" />
<property name="url" value="jdbc:oracle:thin:@host2:1521:dbsid2" />
<property name="username" value="username2" />
<property name="password" value="password2" />
</bean>
<bean id="dataSource3"
class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName" value="oracle.jdbc.OracleDriver" />
<property name="url" value="jdbc:oracle:thin:@host3:1521:dbsid3" />
<property name="username" value="username3" />
<property name="password" value="password3" />
</bean>
<tx:annotation-driven/>
<bean id="txManager1" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<qualifier value="txManager1"/>
<property name="dataSource2" ref="dataSource2"/>
</bean>
<bean id="txManager2" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<qualifier value="txManager2"/>
<property name="dataSource3" ref="dataSource3"/>
</bean>
由于多个事务管理器被定义,我合格他们与自己的价值观。正如你所看到的,dataSource3
使用setter方法注入:
package my.pkg;
@Component
public class MyDAO {
private DataSource dataSource3;
// Read only from datasource
@Autowired
@Qualifier("dataSource")
public void setDataSource(DataSource ds) {
template = new NamedParameterJdbcTemplate(ds);
}
// Performs reads/updates/inserts from datasource2
@Autowired
@Qualifier("dataSource2")
public void setDataSource2(DataSource ds) {
iTemplate = new NamedParameterJdbcTemplate(ds);
}
// Performs reads/updates/inserts from datasource3
@Autowired
@Qualifier("dataSource3")
public void setDataSource3(DataSource ds) {
dataSource3 = ds;
uTemplate = new NamedParameterJdbcTemplate(ds);
}
@Transactional("txManager1")
public String insertProcs() { }
@Transactional("txManager2")
public String updateProcs() { }
}
然而,在运行Junit的单元测试,我得到如下:
java.lang.IllegalStateException: Failed to load ApplicationContext
at org.springframework.test.context.TestContext.getApplicationContext(TestContext.java:308)
at org.springframework.test.context.support.DependencyInjectionTestExecutionListener.injectDependencies(DependencyInjectionTestExecutionListener.java:109)
at org.springframework.test.context.support.DependencyInjectionTestExecutionListener.prepareTestInstance(DependencyInjectionTestExecutionListener.java:75)
at org.springframework.test.context.TestContextManager.prepareTestInstance(TestContextManager.java:321)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.createTest(SpringJUnit4ClassRunner.java:211)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner$1.runReflectiveCall(SpringJUnit4ClassRunner.java:287)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.methodBlock(SpringJUnit4ClassRunner.java:289)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:231)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61)
at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:70)
at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:174)
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:49)
at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'txManager2' defined in class path resource [test-context.xml]:
Error setting property values; nested exception is org.springframework.beans.NotWritablePropertyException: Invalid property 'dataSource3' of bean class
[org.springframework.jdbc.datasource.DataSourceTransactionManager]: Bean property 'dataSource3' is not writable or has an invalid setter method. Does the parameter
type of the setter match the return type of the getter?
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1363)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1085)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:516)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:455)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:293)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:290)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:192)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:585)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:895)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:425)
at org.springframework.test.context.support.AbstractGenericContextLoader.loadContext(AbstractGenericContextLoader.java:84)
at org.springframework.test.context.support.AbstractGenericContextLoader.loadContext(AbstractGenericContextLoader.java:1)
at org.springframework.test.context.TestContext.loadApplicationContext(TestContext.java:280)
at org.springframework.test.context.TestContext.getApplicationContext(TestContext.java:304)
... 24 more
Caused by: org.springframework.beans.NotWritablePropertyException: Invalid property 'dataSource3' of bean class
[org.springframework.jdbc.datasource.DataSourceTransactionManager]: Bean property 'dataSource3' is not writable or has an invalid setter method. Does the parameter
type of the setter match the return type of the getter?
at org.springframework.beans.BeanWrapperImpl.setPropertyValue(BeanWrapperImpl.java:1052)
at org.springframework.beans.BeanWrapperImpl.setPropertyValue(BeanWrapperImpl.java:921)
at org.springframework.beans.AbstractPropertyAccessor.setPropertyValues(AbstractPropertyAccessor.java:76)
at org.springframework.beans.AbstractPropertyAccessor.setPropertyValues(AbstractPropertyAccessor.java:58)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1360)
任何想法,源问题是?
更新
基于公认的答案,下面进行了更改,以获得预期的功能:
<tx:annotation-driven transaction-manager="txManager1"/>
<bean id="txManager1" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<qualifier value="txManager1"/>
<property name="dataSource" ref="dataSource2"/>
</bean>
<bean id="txManager2" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<qualifier value="txManager2"/>
<property name="dataSource" ref="dataSource3"/>
</bean>
@Qualifier("dataSource")
应该已被纠正(在我的部分错字):
// Read only from datasource
@Autowired
@Qualifier("dataSource1")
public void setDataSource1(DataSource ds) {
template = new NamedParameterJdbcTemplate(ds);
}
属性名称是问题,我忘记了在'tx:annotation-driven'中包含第一个事务。 'dataSource'限定符的错误是一个错字(我将它留在问题中,所以提供的答案对于未来的读者来说不会不合适)。 – Malvon
为我工作。多谢你们。 – Shashank
经典解释:) –