java - Spring MVC 4 服务@tTransactional 不起作用

Question

1。 Spring MVC application-context.xml

<tx:annotation-driven/>

    <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource">
        <property name="driverClassName" value="com.mysql.jdbc.Driver"/>
        <property name="username" value="test"/>
        <property name="password" value="test"/>
        <property name="url" value="jdbc:mysql://localhost:13306/test"/>
    </bean>

    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSource"/>
    </bean>

2。服务实现类

@Override
@Transactional
public void deleteCommentAndFiles(int commentId) {
    int deletedCommentCount = commentDAO.deleteComment(commentId);
    int deletedFileCount = fileDAO.deleteFiles(commentId);

    if (deletedCommentCount != 1) {
        throw new IncorrectUpdateSemanticsDataAccessException("Deleted comment not 1 [deletedCount : " + deletedCommentCount);
    }

    if (deletedFileCount != 1) {
        throw new IncorrectUpdateSemanticsDataAccessException("Deleted file not 1 [deletedCount : " + deletedCommentCount);
    }

}

3。测试用例

@Test
public void rollbackT() {
    boolean hasException = false;
    int sizeBeforDelete = commentDAO.selectCountByArticle(1);

    try {
        commentService.deleteCommentAndFiles(1);
    } catch (RuntimeException e) {
        hasException = true;
    }

    Assert.assertTrue(hasException);
    Assert.assertEquals(sizeBeforDelete, commentDAO.selectCountByArticle(1));

}

在测试用例中

第一个 Assert.assertTrue(hasException); 已通过，但是

Assert.assertEquals(sizeBeforDelete, commentDAO.selectCountByArticle(1)) 这种情况失败 预期:1 但实际:0

第二个TC失败意味着发生异常但不回滚删除评论

deleteCommentAndFiles方法抛出异常但不回滚

我正在尝试使用@Transactional(propagation=Propagation.REQUIRED, rollbackFor={In CorrectUpdateSemanticsDataAccessException.class})

但同样不起作用

为什么@Transactional注释不起作用？

Answer 1

我也遇到了同样的问题。我将 @transactional 移至 Controller 以便正常工作。

@EnableTransactionManagement and only looks for @Transactional on beans in the same application context they are defined in. This means that, if you put annotation driven configuration in a WebApplicationContext for a DispatcherServlet, it only checks for @Transactional beans in your controllers, and not your services. See Section 21.2, “The DispatcherServlet” for more information.