编译报错

坟墓里的爱情 2014-07-10 09:57:05

新建一个动态web项目，web.xml的第一行报错，但是好像不影响程序运行

<?xml version="1.0" encoding="UTF-8"?>

错误内容如下：
The errors below were detected when validating the file "javaee_6.xsd" via the file "web.xml". In most cases these errors can be detected by validating "javaee_6.xsd" directly. However it is possible that errors will only occur when javaee_6.xsd is validated in the context of web.xml.

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坟墓里的爱情 2014-07-10

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但是不清楚为什么，请指教

坟墓里的爱情 2014-07-10

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报错的文件

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" id="WebApp_ID" version="3.0">
  <display-name>aa</display-name>
  <welcome-file-list>
    <welcome-file>index.jsp</welcome-file>
    
  </welcome-file-list>
</web-app>

第二行改成下面的样子就不报错了

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" id="WebApp_ID" version="3.0">
  <display-name>0001</display-name>
  <welcome-file-list>
    <welcome-file>index.html</welcome-file>
    <welcome-file>index.htm</welcome-file>
    <welcome-file>index.jsp</welcome-file>
    <welcome-file>default.html</welcome-file>
    <welcome-file>default.htm</welcome-file>
    <welcome-file>default.jsp</welcome-file>
  </welcome-file-list>
</web-app>

下面正确的文件是Version: Juno Release的eclipse自动生成的上面报错的是Release2