问题描述

Spring配置文件中DOCTYPE与<beans xmlns>冲突问题

这是DPCTYPE
<!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN" "http://www.springframework.org/dtd/spring-beans.dtd">
这是beans里的配置
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:tx="http://www.springframework.org/schema/tx"
xsi:schemaLocation="
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd">

        这是我接下来的通知类

        <bean id="advices" class="advice.Advices"></bean>

<aop:config>
    <!-- 调用日志类 -->
    <aop:aspect id="advice" ref="advices">
        <aop:pointcut expression="execution(* action.*.*(..))" id="log"/>
        <aop:before method="before" pointcut-ref="log"/>
        <aop:after method="afterReturning" pointcut-ref="log"/>
        <aop:after-throwing method="afterThrowing" pointcut-ref="log"/>
    </aop:aspect>

</aop:config>

但是用tomcat运行下来会报这个错

Exception sending context initialized event to listener instance of class org.springframework.web.context.ContextLoaderListener

org.springframework.beans.factory.parsing.BeanDefinitionParsingException: Configuration problem: Failed to import bean definitions from relative location [xml/spring-advice.xml]
Offending resource: ServletContext resource [/WEB-INF/classes/applicationContext.xml]; nested exception is org.springframework.beans.factory.xml.XmlBeanDefinitionStoreException: Line 11 in XML document from ServletContext resource [/WEB-INF/classes/xml/spring-advice.xml] is invalid; nested exception is org.xml.sax.SAXParseException: Attribute "xmlns" must be declared for element type "beans".
Caused by: org.springframework.beans.factory.xml.XmlBeanDefinitionStoreException: Line 11 in XML document from ServletContext resource [/WEB-INF/classes/xml/spring-advice.xml] is invalid; nested exception is org.xml.sax.SAXParseException: Attribute "xmlns" must be declared for element type "beans".
Caused by: org.xml.sax.SAXParseException: Attribute "xmlns" must be declared for element type "beans".

解决方案

xmlns="http://www.springframework.org/schema/beans" 加上这个