我是Spring交易的新手。我使用Spring 3.2.2和MySQL 5.5.20(InnoDB)。我可以在日志文件中看到它确实回滚了,但是在数据库中,记录仍然被更新为9.我错过了什么?感谢。
config.xml:
<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
<property name="driverClassName" value="com.mysql.jdbc.Driver" />
<property name="url" value="jdbc:mysql://127.0.0.1:3306/javatest?useUnicode=true&characterEncoding=UTF-8" />
<property name="username" value="root" />
<property name="password" value="xxx" />
</bean>
<bean id="txManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource"/>
</bean>
<bean id="hello" class="com.xol.oss.HelloService">
<property name="dataSource" ref="dataSource"/>
</bean>
<tx:annotation-driven transaction-manager="txManager"/>
Java代码:
public void setDataSource(BasicDataSource dataSource) {
this.dataSource = dataSource;
}
@Transactional
public void getData() {
Connection con=null;
try {
con = dataSource.getConnection();
Statement stat = con.createStatement();
stat.executeUpdate("update testdata set foo=9 where id=1");
throw new RuntimeException("an Exception for test");
} catch (SQLException e) {
e.printStackTrace();
} finally{
try {
con.close();
} catch (SQLException e) {
e.printStackTrace();
}
}
}
日志说它确实回滚了:
15:15:36,936 DEBUG DataSourceTransactionManager:366 - Creating new transaction with name [com.xol.oss.HelloService.getData]: PROPAGATION_REQUIRED,ISOLATION_DEFAULT; ''
15:15:37,525 DEBUG DataSourceTransactionManager:205 - Acquired Connection [jdbc:mysql://127.0.0.1:3306/javatest?useUnicode=true&characterEncoding=UTF-8, UserName=root@localhost, MySQL-AB JDBC Driver] for JDBC transaction
15:15:37,535 DEBUG DataSourceTransactionManager:222 - Switching JDBC Connection [jdbc:mysql://127.0.0.1:3306/javatest?useUnicode=true&characterEncoding=UTF-8, UserName=root@localhost, MySQL-AB JDBC Driver] to manual commit
15:15:37,581 DEBUG DataSourceTransactionManager:844 - Initiating transaction rollback
15:15:37,582 DEBUG DataSourceTransactionManager:280 - Rolling back JDBC transaction on Connection [jdbc:mysql://127.0.0.1:3306/javatest?useUnicode=true&characterEncoding=UTF-8, UserName=root@localhost, MySQL-AB JDBC Driver]
15:15:37,583 DEBUG DataSourceTransactionManager:323 - Releasing JDBC Connection [jdbc:mysql://127.0.0.1:3306/javatest?useUnicode=true&characterEncoding=UTF-8, UserName=root@localhost, MySQL-AB JDBC Driver] after transaction
15:15:37,583 DEBUG DataSourceUtils:327 - Returning JDBC Connection to DataSource
Exception in thread "main" java.lang.RuntimeException: an RuntimeException for test
at com.xol.oss.HelloService.getData(HelloService.java:31)
at com.xol.oss.HelloService$$FastClassByCGLIB$$3d7d84e8.invoke(<generated>)
答案 0 :(得分:5)
问题是您没有使用spring管理的连接,而是打开新连接。将代码更改为以下内容并尝试。
import org.springframework.jdbc.datasource.DataSourceUtils;
@Transactional
public void getData() {
Connection con=null;
try {
// Get the connection associated with the transaction
con = DataSourceUtils.getConnection(dataSource);
Statement stat = con.createStatement();
stat.executeUpdate("update testdata set foo=9 where id=1");
throw new RuntimeException("an Exception for test");
} catch (SQLException e) {
e.printStackTrace();
} finally{
DataSourceUtils.releaseConnection(dataSource, con);
}
}
如果您正在编写新代码,那么您应该使用JdbcTemplate而不是原始jdbc。
class HelloService {
JdbcTemplate jdbcTemplate;
public setDataSource(DataSource dataSource) {
jdbcTemplate = new JDBCTemplate(dataSource);
}
@Transactional
public void getData() {
jdbcTemplate.update(update testdata set foo=9 where id=1);
throw new RuntimeException("an Exception for test");
}