Spring 配置文件报错：元素 "context:component-scan" 的前缀 "context" 未绑定。

【现象】：

    1.spring配置信息如下

Xml代码  

1. <?xml version="1.0" encoding="UTF-8"?>  
2. <beans xmlns="http://www.springframework.org/schema/beans"  
3.     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"  
4.     xsi:schemaLocation="http://www.springframework.org/schema/beans  
5.         http://www.springframework.org/schema/beans/spring-beans.xsd">  
6.   
7.     <!-- 自动扫描dao和service包(自动注入) -->  
8.     <<span style="color: #ff00ff;">context:</span>component-scan base-package="com.makelove88.**.dao,com.makelove88.**.service" />  
9.     <import resource="classpath*:*/applicationContext-*.xml" />  
10.   
11.   
12. </beans>  

     2.错误信息如下

Java代码  

1. org.springframework.beans.factory.xml.XmlBeanDefinitionStoreException: Line 8 in XML document from URL [file:/E:/InstallSoftware/tomcat/tomcat7u50_8888/webapps/jms/WEB-INF/classes/applicationContext.xml] is invalid; nested exception is org.xml.sax.SAXParseException; lineNumber: 8; columnNumber: 109; 元素 "context:component-scan" 的前缀 "context" 未绑定。  
2.     at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.doLoadBeanDefinitions(XmlBeanDefinitionReader.java:399)  
3.     at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:336)  
4.     at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:304)  
5.     at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:181)  
6.     at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:217)  
7.     at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:188)  
8.     at org.springframework.web.context.support.XmlWebApplicationContext.loadBeanDefinitions(XmlWebApplicationContext.java:125)  
9.     at org.springframework.web.context.support.XmlWebApplicationContext.loadBeanDefinitions(XmlWebApplicationContext.java:94)  
10.     at org.springframework.context.support.AbstractRefreshableApplicationContext.refreshBeanFactory(AbstractRefreshableApplicationContext.java:129)  
11.     at org.springframework.context.support.AbstractApplicationContext.obtainFreshBeanFactory(AbstractApplicationContext.java:537)  
12.     at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:452)  
13.     at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:403)  
14.     at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:306)  
15.     at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:106)  
16.     at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4961)  
17.     at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5455)  下载
18.     at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)  
19.     at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1559)  
20.     at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1549)  
21.     at java.util.concurrent.FutureTask.run(FutureTask.java:262)  
22.     at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)  
23.     at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)  
24.     at java.lang.Thread.run(Thread.java:745)  
25. Caused by: org.xml.sax.SAXParseException; lineNumber: 8; columnNumber: 109; 元素 "context:component-scan" 的前缀 "context" 未绑定。  
26.     at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.createSAXParseException(ErrorHandlerWrapper.java:198)  
27.     at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.fatalError(ErrorHandlerWrapper.java:177)  
28.     at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(XMLErrorReporter.java:441)  
29.     at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(XMLErrorReporter.java:368)  
30.     at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(XMLErrorReporter.java:325)  
31.     at com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.scanStartElement(XMLNSDocumentScannerImpl.java:289)  
32.     at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDriver.next(XMLDocumentFragmentScannerImpl.java:2786)  
33.     at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(XMLDocumentScannerImpl.java:606)  
34.     at com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.next(XMLNSDocumentScannerImpl.java:117)  
35.     at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:510)  
36.     at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:848)  
37.     at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:777)  
38.     at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:141)  
39.     at com.sun.org.apache.xerces.internal.parsers.DOMParser.parse(DOMParser.java:243)  
40.     at com.sun.org.apache.xerces.internal.jaxp.DocumentBuilderImpl.parse(DocumentBuilderImpl.java:347)  
41.     at org.springframework.beans.factory.xml.DefaultDocumentLoader.loadDocument(DefaultDocumentLoader.java:76)  
42.     at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.doLoadDocument(XmlBeanDefinitionReader.java:429)  
43.     at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.doLoadBeanDefinitions(XmlBeanDefinitionReader.java:391)  
44.     ... 22 more  
45. 十一月 09, 2016 10:09:32 上午 org.apache.catalina.core.StandardContext listenerStart  
46. 严重: Exception sending context initialized event to listener instance of class org.springframework.web.context.ContextLoaderListener  

【问题分析】

     配置文件中使用了context标签，但未声明。

【解决方案】下载

    在配置文件中加上context的声明

Xml代码  

1. <?xml version="1.0" encoding="UTF-8"?>  
2. <beans xmlns="http://www.springframework.org/schema/beans"  
3.     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"  
4. <span style="color: #ff00ff;">  xmlns:context="http://www.springframework.org/schema/context"   
5. </span>   
6.     xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd  
7. <span style="color: #ff00ff;">        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd  
8. </span>        ">  
9.   
10.     <!-- 自动扫描dao和service包(自动注入) -->  
11.     <context:component-scan base-package="com.makelove88.**.dao,com.makelove88.**.service" />  
12.     <import resource="classpath*:*/applicationContext-*.xml" />  
13.   
14.   
15. </beans>