jsp在tomcat上的問題

betatoy · 发表于 2005-5-6 17:26:20

The server encountered an internal error () that prevented it from fulfilling this request.

org.apache.jasper.JasperException: /text.jsp(13,3) According to TLD, tag math:Add must be empty, but is not
org.apache.jasper.compiler.DefaultErrorHandler.jspError(DefaultErrorHandler.java:39)
org.apache.jasper.compiler.ErrorDispatcher.dispatch(ErrorDispatcher.java:409)
org.apache.jasper.compiler.ErrorDispatcher.jspError(ErrorDispatcher.java:134)
org.apache.jasper.compiler.Parser.parseBody(Parser.java:1755)
org.apache.jasper.compiler.Parser.parseOptionalBody(Parser.java:1060)
org.apache.jasper.compiler.Parser.parseCustomTag(Parser.java:1367)
org.apache.jasper.compiler.Parser.parseElements(Parser.java:1560)
org.apache.jasper.compiler.Parser.parse(Parser.java:126)
org.apache.jasper.compiler.ParserController.doParse(ParserController.java:220)
org.apache.jasper.compiler.ParserController.parse(ParserController.java:101)
org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:203)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:470)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:451)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:439)
org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:511)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:295)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)

betatoy · 发表于 2005-5-6 17:27:05

jsp的内容

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<%@ page language="java"%>
<%@ taglib uri="mytags" prefix="math"%>
<html>
<head>
<title>show me the money</title>
</head>

<body>
calling first tag


<math:Add num_1="1212" num_2="121"></math>


calling second tag


<math:Subtract num_1="21223" num_2="300"></math>


</body>
</html>

betatoy · 发表于 2005-5-6 17:27:54

tld的内容

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE taglib PUBLIC "-//Sun Microsystems, Inc.//DTD JSP Tag Library 1.2//EN" "http://java.sun.com/dtd/web-jsptaglibrary_1_2.dtd">
<taglib>
<tlib-version>1.0</tlib-version>
<jsp-version>1.1</jsp-version>
<short-name>math</short-name>
<uri></uri>

<tag>
<name>Add</name>
<tag-class>tag.Add</tag-class>
<body-content>empty</body-content>

<attribute>
<name>num_1</name>
<required>true</required>
<rtexprvalue>false</rtexprvalue>
</attribute>

<attribute>
<name>num_2</name>
<required>true</required>
<rtexprvalue>false</rtexprvalue>
</attribute>
</tag>

<tag>
<name>Substract</name>
<tag-class>tag.Substract</tag-class>
<body-content>empty</body-content>

<attribute>
<name>num_1</name>
<required>true</required>
<rtexprvalue>false</rtexprvalue>
</attribute>

<attribute>
<name>num_2</name>
<required>true</required>
<rtexprvalue>false</rtexprvalue>
</attribute>
</tag>

</taglib>

betatoy · 发表于 2005-5-6 17:28:53

web.xml内容

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

<web-app>

<servlet>
<servlet-name>Add</servlet-name>
<servlet-class>tag.Add</servlet-class>
</servlet>
<servlet>
<servlet-name>Subtract</servlet-name>
<servlet-class>tag.Subtract</servlet-class>
</servlet>

<servlet-mapping>
<servlet-name>Add</servlet-name>
<url-pattern>/Add</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>Subtract</servlet-name>
<url-pattern>/Subtract</url-pattern>
</servlet-mapping>

<taglib>
<taglib-uri>mytags</taglib-uri>
<taglib-location>/WEB-INF/mytags.tld</taglib-location>
</taglib>

</web-app>

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