Java开发网 - [求助]帮我分一下问题在那里？

Topic: [求助]帮我分一下问题在那里？

1.[求助]帮我分一下问题在那里？

Posted by: baixiaotian
Posted on: 2005-05-19 12:47

重貼, 扣分 (雖然閣下沒有分可扣)
http://www.cjsdn.net/post/view?bid=51&id=144282

我在书上抄了一个easy.jsp源代码:
<%@ page contentType="text/html" %>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<html>
<head>
<title>JSP is Easy</title>
</head>
<body bgcolor="white">

<h1>JSP is as easy as ...</h1>

<%-- Calculate the sum of 1 + 2 + 3 dynamically --%>
1 + 2 + 3 = <c:out value="${1 + 2 + 3}" />

</body>
</html>
可是为什么运行的时候为什么出现这样的错误提示：

A Servlet Exception Has Occurred
org.apache.jasper.JasperException: This absolute uri (http://java.sun.com/jsp/jstl/core) cannot be resolved in either web.xml or the jar files deployed with this application at org.apache.jasper.compiler.TagLibraryInfoImpl.(TagLibraryInfoImpl.java:194) at org.apache.jasper.compiler.TagLibraryInfoImpl.(TagLibraryInfoImpl.java:174) at org.apache.jasper.compiler.JspParseEventListener.processTaglibDirective(JspParseEventListener.java:1148) at org.apache.jasper.compiler.JspParseEventListener.handleDirective(JspParseEventListener.java:755) at org.apache.jasper.compiler.DelegatingListener.handleDirective(DelegatingListener.java:121) at org.apache.jasper.compiler.Parser$Directive.accept(Parser.java:243) at org.apache.jasper.compiler.Parser.parse(Parser.java:1132) at org.apache.jasper.compiler.Parser.parse(Parser.java:1091) at org.apache.jasper.compiler.Parser.parse(Parser.java:1087) at org.apache.jasper.compiler.ParserController.parse(ParserController.java:213) at org.apache.jasper.compiler.Compiler.compile(Compiler.java:210) at org.apache.jasper.servlet.JspServlet.loadJSP(JspServlet.java:543) at org.apache.jasper.servlet.JspServlet$JspServletWrapper.loadIfNecessary(JspServlet.java:176) at org.apache.jasper.servlet.JspServlet$JspServletWrapper.service(JspServlet.java:188) at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:381) at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:473) at javax.servlet.http.HttpServlet.service(HttpServlet.java:1264) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:247) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:243) at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566) at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472) at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:215) at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566) at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472) at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943) at org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2366) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:164) at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566) at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:462) at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564) at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472) at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:163) at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566) at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472) at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943) at org.apache.catalina.connector.http.HttpProcessor.process(HttpProcessor.java:1005) at org.apache.catalina.connector.http.HttpProcessor.run(HttpProcessor.java:1098) at java.lang.Thread.run(Unknown Source)

2.Re:[求助]帮我分一下问题在那里？ [Re: baixiaotian]	Copy to clipboard
Posted by: danzel Posted on: 2005-05-19 16:32 jstl的tag lib 没有 <%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %> 可以去找jstl的资料看看

3.Re:[求助]帮我分一下问题在那里？ [Re: baixiaotian]	Copy to clipboard
Posted by: why Posted on: 2005-05-19 20:26 kjjx 君在已被刪的帖子是寫: taglib指令的uri属性没有和你web.xml里taglib元素描述的匹配,修改一致就好了