1。删掉<!DOCTYPE web-app PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application2.3//EN" "http://java.sun.com/dtd/web-app_2_3.dtd">。2。<taglib>
<taglib-uri>http://java.sun.com/jstl/core</taglib-uri>
<taglib-location>/WEB-INF/tlds/c.tld</taglib-location>
</taglib>
改为
<taglib>
<taglib-uri>/WEB-INF/jstl-core.tld</taglib-uri>
<taglib-location>/WEB-INF/c.tld</taglib-location>
</taglib>
<taglib-uri>http://java.sun.com/jstl/core</taglib-uri>
<taglib-location>/WEB-INF/tlds/c.tld</taglib-location>
</taglib>
改为
<taglib>
<taglib-uri>/WEB-INF/jstl-core.tld</taglib-uri>
<taglib-location>/WEB-INF/c.tld</taglib-location>
</taglib>
把DOCTYPE去掉,将<web-app>改成
<web-app xmlns="http://java.sun.com/xml/ns/j2ee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee web-app_2_4.xsd"
version="2.4">
<taglib>
<taglib-uri>http://java.sun.com/jstl/core</taglib-uri>
<taglib-location>/WEB-INF/tlds/c.tld</taglib-location>
</taglib>
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee web-app_2_4.xsd"
version="2.4">
我把这段代码加上以后IDEA就报错了 ,下面的代码变红了
另外我把<!DOCTYPE web-app PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN" "http://java.sun.com/dtd/web-app_2_3.dtd">
去掉了TOMCAT报错:org.xml.sax.SAXParseException: Document root element "web-app", must match DOCTYPE root "null".
我按照上面的说的都试过了 都不行啊!
哪位高人再指点一下把 谢谢了!