在eclipse中web.xml报错：cvc-complex-type.2.4.a: Invalid content was found starting with element 'async-su在eclipse中web.xml报错：cvc-complex-type.2.4.a: Invalid content was found starting with element ‘async-supported’

在eclipse中web.xml报错：cvc-complex-type.2.4.a: Invalid content was found starting with element ‘async-supported’

在配置web.xml的时候出现cvc-complex-type.2.4.a: Invalid content was found starting with element错误，这个错误的引起原因暂时还不明，包括解决办法也不清楚原理，待后续补充。
目前已知的解决办法有三种：

1. 最简单的方法，在xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"后引号前加空格。
2. 修改抬头文件

<web-app version="2.5" 
	xmlns="http://java.sun.com/xml/ns/javaee" 
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
	xsi:schemaLocation="http://www.oracle.com/webfolder/technetwork/jsc/xml/ns/javaee/index.html 
	http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">

作者：singleton-zw
来源：CSDN
原文：https://blog.csdn.net/u010982856/article/details/53185864?utm_source=copy
版权声明：本文为博主原创文章，转载请附上博文链接！
3. 修改抬头文件

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5"
xmlns="http://java.sun.com/xml/ns/javaee"
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/javaee
http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">

作者：花2不谢
来源：CSDN
原文：https://blog.csdn.net/qq_25821067/article/details/52625525?utm_source=copy
版权声明：本文为博主原创文章，转载请附上博文链接！

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