我的异常代码与解决

 

今天搞spring 时，出现的异常

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

org.springframework.beans.factory.xml.XmlBeanDefinitionStoreException: Line 5 in XML document from ServletContext resource [/WEB-INF/applicationContext.xml] is invalid; nested exception is org.xml.sax.SAXParseException: cvc-elt.1: Cannot find the declaration of element 'beans'.

Caused by: org.xml.sax.SAXParseException: cvc-elt.1: Cannot find the declaration of element 'beans'.

aa.core.ContainerBase.addChild(ContainerBase.java:779)

at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:601)

at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:1079)

at org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.java:1002)

at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:506)

at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1317)

at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:324)

at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:142)

at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1065)

at org.apache.catalina.core.StandardHost.start(StandardHost.java:840)

at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1057)

at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:463)

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这个说明你的applicationContext.xml文件里的标头出现错误。我原来的是

<?xml version="1.0" encoding="UTF-8"?>

<beans

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

xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd">

</beans>

改成是

1. <?xml version="1.0" encoding="UTF-8"?>  
2. <!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN"  
3. "http://www.springframework.org/dtd/spring-beans.dtd">  
4. <beans>