Configuration problem: Cannot locate BeanDefinitionDecorator for element [config] 或 [advice]

我今天在網上學搭框架，我在spring.xml配置的時候，我不是直接複製的，我是手把手敲了一遍，固然會有小錯誤。我把這個錯誤也記錄一下。

其實很簡單，你仔細對比你本身親手敲得和別人測試經過的。你會發現不少地方不是位置放錯了，就是字符錯了。

不說多了，標題的錯誤已經告訴咱們答案了。我先把錯誤配置代碼貼出來：

 1 <bean id="transactionManager"
 2         class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
 3         <property name="dataSource" ref="dataSource" />
 4         這裏的</bean>去哪裏了？
 5     <aop:config>
 6         <aop:pointcut id="transactionPointcut"
 7             expression="execution(* com.zou.test.service..*Impl.*(..))" />
 8         <aop:advisor pointcut-ref="transactionPointcut"
 9             advice-ref="transactionAdvice" />
10     </aop:config>
11     
12     <tx:advice id="transactionAdvice" transaction-manager="transactionManager">
13         <tx:attributes>
14             <tx:method name="add*" propagation="REQUIRED" />
15             <tx:method name="append*" propagation="REQUIRED" />
16             <tx:method name="insert*" propagation="REQUIRED" />
17             <tx:method name="save*" propagation="REQUIRED" />
18             <tx:method name="update*" propagation="REQUIRED" />
19             <tx:method name="modify*" propagation="REQUIRED" />
20             <tx:method name="edit*" propagation="REQUIRED" />
21             <tx:method name="delete*" propagation="REQUIRED" />
22             <tx:method name="remove*" propagation="REQUIRED" />
23             <tx:method name="repair" propagation="REQUIRED" />
24             <tx:method name="delAndRepair" propagation="REQUIRED" />
25 
26 
27             <tx:method name="get*" propagation="SUPPORTS" />
28             <tx:method name="find*" propagation="SUPPORTS" />
29             <tx:method name="load*" propagation="SUPPORTS" />
30             <tx:method name="search*" propagation="SUPPORTS" />
31             <tx:method name="datagrid*" propagation="SUPPORTS" />
32 
33 
34             <tx:method name="*" propagation="SUPPORTS" />
35         </tx:attributes>
36     </tx:advice>
37     
38 </bean> 原來跑這裏來了

不知道你們看出什麼緣由沒有，彷佛都很正確，沒毛病。

說重點，我說過不是位置錯了就是字符錯了。

其實就是我方的位置錯誤了，我不當心寫<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">這個的時候忘記及時把結束</bean>加上，而後等我把接下來的

<aop:config>
<aop:pointcut id="transactionPointcut"
expression="execution(* com.zou.test.service..*Impl.*(..))" />
<aop:advisor pointcut-ref="transactionPointcut"
advice-ref="transactionAdvice" />
</aop:config>

<tx:advice id="transactionAdvice" transaction-manager="transactionManager">
<tx:attributes>
<tx:method name="add*" propagation="REQUIRED" />
<tx:method name="append*" propagation="REQUIRED" />
<tx:method name="insert*" propagation="REQUIRED" />
<tx:method name="save*" propagation="REQUIRED" />
<tx:method name="update*" propagation="REQUIRED" />
<tx:method name="modify*" propagation="REQUIRED" />
<tx:method name="edit*" propagation="REQUIRED" />
<tx:method name="delete*" propagation="REQUIRED" />
<tx:method name="remove*" propagation="REQUIRED" />
<tx:method name="repair" propagation="REQUIRED" />
<tx:method name="delAndRepair" propagation="REQUIRED" />


<tx:method name="get*" propagation="SUPPORTS" />
<tx:method name="find*" propagation="SUPPORTS" />
<tx:method name="load*" propagation="SUPPORTS" />
<tx:method name="search*" propagation="SUPPORTS" />
<tx:method name="datagrid*" propagation="SUPPORTS" />


<tx:method name="*" propagation="SUPPORTS" />
</tx:attributes>
</tx:advice>

這些代碼寫完才加上這個</bean>，固然這樣也沒有報錯，因此我沒注意，等啓動時候報錯了，我當時網上瘋查，沒找到我想要的。後來我就把原版的複製過來，啓動就沒報錯了，我因而不服，我就是要弄個明白，後來這樣仔細一對比，才發現個人位置放得不對。要把中間那些代碼從<aop:config>開始放到<bean>外面，不要包在裏面。但願我這個低級錯誤能幫到大家。

 

正確配置代碼：

 1 <bean id="transactionManager"
 2  class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
 3         <property name="dataSource" ref="dataSource" />
 4     </bean>---結束的</bean>          以前錯誤的緣由</bean>在最下面。
 5     <aop:config>
 6         <aop:pointcut id="transactionPointcut"
 7             expression="execution(* com.zou.test.service..*Impl.*(..))" />
 8         <aop:advisor pointcut-ref="transactionPointcut"
 9             advice-ref="transactionAdvice" />
10     </aop:config>
11 
12     <tx:advice id="transactionAdvice" transaction-manager="transactionManager">
13         <tx:attributes>
14             <tx:method name="add*" propagation="REQUIRED" />
15             <tx:method name="append*" propagation="REQUIRED" />
16             <tx:method name="insert*" propagation="REQUIRED" />
17             <tx:method name="save*" propagation="REQUIRED" />
18             <tx:method name="update*" propagation="REQUIRED" />
19             <tx:method name="modify*" propagation="REQUIRED" />
20             <tx:method name="edit*" propagation="REQUIRED" />
21             <tx:method name="delete*" propagation="REQUIRED" />
22             <tx:method name="remove*" propagation="REQUIRED" />
23             <tx:method name="repair" propagation="REQUIRED" />
24             <tx:method name="delAndRepair" propagation="REQUIRED" />
25 
26             <tx:method name="get*" propagation="SUPPORTS" />
27             <tx:method name="find*" propagation="SUPPORTS" />
28             <tx:method name="load*" propagation="SUPPORTS" />
29             <tx:method name="search*" propagation="SUPPORTS" />
30             <tx:method name="datagrid*" propagation="SUPPORTS" />
31 
32             <tx:method name="*" propagation="SUPPORTS" />
33         </tx:attributes>
34     </tx:advice>