cvc-complex-type.2.4.c：匹配的通配符很严格，但找不到元素 'aop：scoped-proxy' 的声明

Question

我有一个使用JPA和Oracle作为DB的Spring MvC项目，我的servlet.xml文件中有这个bean声明，但当我运行测试时

<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:jpa="http://www.springframework.org/schema/data/jpa"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:aop="http://www.springframework.org/schema/aop"
xsi:schemaLocation="http://www.springframework.org/schema/data/jpa
http://www.springframework.org/schema/data/jpa/spring-jpa.xsd
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/context 
http://www.springframework.org/schema/context/spring-context.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop.xsd
http://www.springframework.org/schema/tx/spring-tx.xsd">
<bean id="bbtra" 
class="com.bonanza.commons.services.TranslationDB"
autowire-candidate="true">
<property name="dataSource" ref="dataSource" />
<aop:scoped-proxy/>
</bean>

我得到了这个错误：

cvc-complex-type.2.4.c: The matching wildcard is strict, but no declaration can be found for element 'aop:scoped-proxy'.

Answer 1

通常*.xsd文件由https://而不是http://引用，但这不是问题所在，我只是提到它。解决问题的XML文件的最小更改是将spring-tx.xsd上移到tx之后。然后，XML编辑器中的突出显示也发生了变化，即在IntelliJ IDEA中，您将看到AOP内容从灰色变为绿色。我的意思是：

<beans
xmlns="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:jpa="http://www.springframework.org/schema/data/jpa"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:aop="http://www.springframework.org/schema/aop"
xsi:schemaLocation="
http://www.springframework.org/schema/data/jpa
http://www.springframework.org/schema/data/jpa/spring-jpa.xsd
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop.xsd
"
>
<bean id="bbtra"
class="com.bonanza.commons.services.TranslationDB"
autowire-candidate="true">
<property name="dataSource" ref="dataSource" />
<aop:scoped-proxy/>
</bean>
</beans>

现在，所有模式位置schema/foo和schema/foo/spring-foo.xsd形成成对。

Answer 2

很可能没有指定aop命名空间的模式位置：

<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:aop="http://www.springframework.org/schema/aop"
xsi:schemaLocation="
http://www.springframework.org/schema/beans https://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/aop https://www.springframework.org/schema/aop/spring-aop.xsd">
<!-- bean definitions here -->
</beans>