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解决（The content of element type "web-app" must match "(icon?display）

IT知识displayElement

亦余心之所善兮，虽九死其犹未悔。这篇文章主要讲述解决：The content of element type " web-app" must match " (icon?display相关的知识，希望能为你提供帮助。
http://www.educity.cn/wenda/126463.html
解决：The content of element type "web-app" must match "(icon ,display-
错误：The content of element type "web-app" must match "(icon ,display-
name ,description ,distributable ,context-param*,filter*,filter-mapping*,listener*,servlet*,servlet-
mapping*,session-config ,mime-mapping*,welcome-file-list ,error-page*,taglib*,resource-env-
ref*,resource-ref*,security-constraint*,login-config ,security-role*,env-entry*,ejb-ref*,ejb-local-ref*)".
- No grammar constraints (DTD or XML schema) detected for the document.
【解决（The content of element type " web-app" must match " (icon?display）】web.xml头部配置：
< xml version="1.0" encoding="UTF-8" >
< !DOCTYPE web-app PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN" "">
< web-app>
原因：文档内容标签顺序不符合web-app_2_3.dtd规范
解决方案
1：严格按照提示上的顺序排列
2：删除< !DOCTYPE 。。。。这段内容          
 





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