cvc-complex-type.2.4.a: Invalid content was found starting with element

在写xml的时候又一次总是报cvc-complex-type.2.4.a: Invalid content was found starting with element 错误,还出现小红叉,在网上找了很多,有说是把报红叉的代码写在之间,试了之后发现完全没用。
后来在外文网站上找到了一个方法就把问题解决了

解决办法为:将“http://www.springmodules.org/schema/cache/springmodules-cache.xsd http://www.springmodules.org/schema/cache/springmodules-ehcache.xsd”这段话加入到xml文件的”xmlns:xsi=”的标签中

  
<web-app version="2.4" xmlns="http://java.sun.com/xml/ns/j2ee"  
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance  http://www.springmodules.org/schema/cache/springmodules-cache.xsd http://www.springmodules.org/schema/cache/springmodules-ehcache.xsd"    xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee   
    http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">  

这样就不报错了

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