代码:
<?xml version="1.0" encoding="UTF-8"?>
<web-app
xmlns:xsi="http://www.w3.org/2001/XMLSchemainstance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
id="schedule-console" version="3.0">
</web-app>
另外:
修改.settings文件夹中org.eclipse.wst.common.project.facet.core.xml
<?xmlversion="1.0"encoding="UTF-8"?>
<faceted-project>
<fixedfacet="jst.web"/>
<fixedfacet="java"/>
<installedfacet="jst.web"version="3.0"/>
<installedfacet="java"version="1.7"/>
</faceted-project>