spring 事务没有回滚

<bean name="/system/branch_modi"
	      class="com.jandar.fdpweb.action.system.BranchOperationAction">
	     <property name="branchManage">
			<ref bean="branchManage"/>
		</property> 
		
</bean>

<bean id="branchManage" 
		class="com.jandar.fdpweb.service.system.BranchManage">
		<property name="branchTransaction">
			<ref bean="branchTransaction"/>
		</property>
</bean>

<bean id="branchTransaction"
		class="org.springframework.transaction.interceptor.TransactionProxyFactoryBean">
		<property name="transactionManager">
			<ref bean="myTransactonManager"/>
		</property>
		
		<property name="target">
			<ref local="branchDao"/>
		</property>
		
		<property name="transactionAttributes">
			<props>
				<prop key="deleteTest">PROPAGATION_REQUIRED, -Exception</prop>
			</props>
		</property>		
</bean>

<bean id="branchDao"
		class="com.jandar.fdpweb.dao.jdbc.system.BranchDaoJdbcImpl">
		<property name="jdbcTemplate">
			<ref bean="jdbcTemplate" />
		</property>
</bean>

<bean id="jdbcTemplate"
		class="org.springframework.jdbc.core.JdbcTemplate">
		<property name="dataSource">
			<ref bean="c3p0DataSource" />
		</property>
</bean>
	
<bean id="myTransactonManager" 
		class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
		<property name="dataSource">
			<ref bean="c3p0DataSource"/>
		</property>
</bean>

<bean id="c3p0DataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource" destroy-method="close">
		<property name="driverClass">
			<value>com.mysql.jdbc.Driver</value>
		</property>
		<property name="jdbcUrl">
			<value>jdbc:mysql://localhost:3306/cjr_test?characterEncoding=utf8</value>
		</property>
		<property name="user">
			<value>root</value>
		</property>
		<property name="password">
			<value>123456</value>
		</property>
		<property name="initialPoolSize"><value>10</value></property>
		<property name="minPoolSize"><value>5</value></property>
		<property name="maxPoolSize"><value>20</value></property>
		<property name="acquireIncrement"><value>5</value></property>
		<property name="maxIdleTime"><value>60</value></property>
		<property name="maxStatements"><value>0</value></property>
</bean>

public class BranchOperationAction extends DispatchAction {

	private BranchManage branchManage;

	public BranchManage getBranchManage() {
		return branchManage;
	}

	public void setBranchManage(BranchManage branchManage) {
		this.branchManage = branchManage;
	}
	
	public ActionForward delete(ActionMapping mapping, ActionForm form,
			HttpServletRequest request, HttpServletResponse response)
	{

			ActionForward forward = new ActionForward();
			DynaActionForm modifyForm = (DynaActionForm) form;			
			String branchId = modifyForm.getString("branch_tj").trim();
			branchManage.deleteTest(branchId);
			forward = mapping.findForward("success");
			return (forward);
	}
}

public class BranchManage {
	private BranchDao branchTransaction;

	public BranchDao getBranchTransaction() {
		return branchTransaction;
	}

	public void setBranchTransaction(BranchDao branchTransaction) {
		this.branchTransaction = branchTransaction;
	}
	
	public void deleteTest(String branchId) {
		branchTransaction.deleteBranch(branchId);
	}
}

public interface BranchDao {
	public void deleteBranch(final String branchId);
}

public class BranchDaoJdbcImpl implements BranchDao {
	private JdbcTemplate jdbcTemplate;

	public JdbcTemplate getJdbcTemplate() {
		return jdbcTemplate;
	}
	public void setJdbcTemplate(JdbcTemplate jdbcTemplate) {
		this.jdbcTemplate = jdbcTemplate;
	}
	public void deleteBranch(final String branchId) {
		String sqlDelete1 = "delete from admin where id = 1"; // 先删除一条记录
		int[] arr = {1, 2, 3, 4};	
		jdbcTemplate.update(sqlDelete1); 
                //我调试时， 程序运行这行后， 数据库居然删了一行, 事务这时应该没提交，不会删数据库才对啊， 是这样吗？
                //数组下标越界，想让程序抛出Runtime Exception	
		String sqlDelete2 = "delete from admin where id = " + arr[5]; 
		jdbcTemplate.update(sqlDelete2); // 删除第二条报错，事务没有回滚
	}
}