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，我不是直接復制的，我是手把手敲了一遍，當然會有小錯誤。我把這個錯誤也記錄一下。

其實很簡單，你仔細對比你自己親手敲得和別人測試通過的。你會發現很多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我們答案了。我先把錯誤配置代碼貼出來：

<bean id="transactionManager"
        class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSource" />
        這里的</bean>去哪里了？
    <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>
    
</bean> 原來跑這里來了

不知道大家看出什么原因沒有，似乎都很正確，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，我不小心寫<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">這個的時候忘記及時把結束</bean>加上，然后等我把接下來的

<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>，當然這樣也沒有報錯，所以我沒注意，等啟動時候報錯了，我當時網上瘋查，沒找到我想要的。后來我就把原版的復制過來，啟動就沒報錯了，我於是不服，我就是要弄個明白，后來這樣仔細一對比，才發現我的位置放得不對。要把中間那些代碼從<aop:config>開始放到<bean>外面，不要包在里面。希望我這個低級錯誤能幫到你們。

 

正確配置代碼：

<bean id="transactionManager"
 class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSource" />
    </bean>---結束的</bean>          之前錯誤的原因</bean>在最下面。
    <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>