通配符的匹配很全面, 但无法找到元素 'mvc:resources' 的声明，不知道哪里错了

Question

spring-mvc.xml <?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p" xmlns:context="http://www.springframework.org/schema/context" xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:tx="http://www.springframework.org/schema/tx" xsi:schemaLocation=" http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.0.xsd http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd "> <!-- 自动扫描该包，使SpringMVC认为包下用了@controller注解的类是控制器 --> <context:component-scan base-package="com.ymf.whoisquery.controller"/> <!--避免IE执行AJAX时，返回JSON出现下载文件 --> <bean id="mappingJacksonHttpMessageConverter" class="org.springframework.http.converter.json.MappingJacksonHttpMessageConverter"> <property name="supportedMediaTypes"> <list> <value>text/html;charset=UTF-8</value> </list> </property> </bean> <!-- 定义跳转的文件的前后缀 ，视图模式配置--> <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <!-- 这里的配置我的理解是自动给后面action的方法return的字符串加上前缀和后缀，变成一个 可用的url地址 --> <property name="prefix" value="/WEB-INF/view/"/> <property name="suffix" value=".jsp"/> </bean> <mvc:resources mapping="/js/**" location="/js/"/> <mvc:resources mapping="/css/**" location="/css/"/> <mvc:resources mapping="/img/**" location="/img/"/> <mvc:default-servlet-handler/> </beans> 十二月 15, 2016 3:51:45 下午 org.apache.catalina.core.ApplicationContext log信息: No Spring WebApplicationInitializer types detected on classpath十二月 15, 2016 3:51:45 下午 org.apache.catalina.core.ApplicationContext log信息: Initializing Spring root WebApplicationContext十二月 15, 2016 3:51:47 下午 org.apache.catalina.core.ApplicationContext log信息: Initializing Spring FrameworkServlet 'dispatcherServlet'十二月 15, 2016 3:51:47 下午 org.apache.catalina.core.ApplicationContext log严重: StandardWrapper.Throwableorg.springframework.beans.factory.xml.XmlBeanDefinitionStoreException: Line 39 in XML document from class path resource [spring-mvc.xml] is invalid; nested exception is org.xml.sax.SAXParseException; lineNumber: 39; columnNumber: 55; cvc-complex-type.2.4.c: 通配符的匹配很全面, 但无法找到元素 'mvc:resources' 的声明。