• Post Reply Bookmark Topic Watch Topic
  • New Topic
programming forums Java Mobile Certification Databases Caching Books Engineering Micro Controllers OS Languages Paradigms IDEs Build Tools Frameworks Application Servers Open Source This Site Careers Other Pie Elite all forums
this forum made possible by our volunteer staff, including ...
Marshals:
  • Campbell Ritchie
  • Jeanne Boyarsky
  • Ron McLeod
  • Paul Clapham
  • Liutauras Vilda
Sheriffs:
  • paul wheaton
  • Rob Spoor
  • Devaka Cooray
Saloon Keepers:
  • Stephan van Hulst
  • Tim Holloway
  • Carey Brown
  • Frits Walraven
  • Tim Moores
Bartenders:
  • Mikalai Zaikin

Whats Wrong?

 
Ranch Hand
Posts: 78
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
Help Me

Error:- Invalid syntax for function signature in TLD. Tag Library: d, Function: do


Function:-

package foo;

public class Test
{
public static void print()
{
System.out.print("Hello WOrld");
}

}


TLD:-

<taglib 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

http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd"
version="2.4">
<tlib-version>1.2</tlib-version>

<uri>Rendom</uri>
<function>
<name>do</name>
<function-class>foo.Test</function-class>
<function-signature>void print()</function-signature>
</function>
</taglib>


JSP:-

<%@ taglib prefix="d" uri="Rendom"%>

<html><body>

${d o()}

</body></html>



Thanks
[ October 02, 2004: Message edited by: Pawan Ramchandani ]
 
Ranch Hand
Posts: 1258
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
Do you need the "void" in the function signature, or is the return type only specified in the TLD when you actually return something?
 
Ranch Hand
Posts: 35
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
I have problem with this too.

Error message:
org.apache.jasper.JasperException: The class specified in the method signature in TLD for the function mine:rollIt cannot be found.
org.apache.jasper.compiler.DefaultErrorHandler.jspError(DefaultErrorHandler.java:94)
org.apache.jasper.compiler.ErrorDispatcher.dispatch(ErrorDispatcher.java:404)
org.apache.jasper.compiler.ErrorDispatcher.jspError(ErrorDispatcher.java:219)
org.apache.jasper.compiler.Validator$1MapperELVisitor.visit(Validator.java:1405)
org.apache.jasper.compiler.ELNode$Function.accept(ELNode.java:163)
org.apache.jasper.compiler.ELNode$Nodes.visit(ELNode.java:234)
org.apache.jasper.compiler.ELNode$Visitor.visit(ELNode.java:275)
org.apache.jasper.compiler.ELNode$Root.accept(ELNode.java:94)
org.apache.jasper.compiler.ELNode$Nodes.visit(ELNode.java:234)
org.apache.jasper.compiler.Validator$ValidateVisitor.getFunctionMapper(Validator.java:1420)
org.apache.jasper.compiler.Validator$ValidateVisitor.visit(Validator.java:637)
org.apache.jasper.compiler.Node$ELExpression.accept(Node.java:913)
org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2180)
org.apache.jasper.compiler.Node$Visitor.visitBody(Node.java:2230)
org.apache.jasper.compiler.Node$Visitor.visit(Node.java:2236)
org.apache.jasper.compiler.Node$Root.accept(Node.java:485)
org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2180)
org.apache.jasper.compiler.Validator.validate(Validator.java:1515)
org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:247)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:456)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:439)
org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:552)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:291)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:301)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:248)
javax.servlet.http.HttpServlet.service(HttpServlet.java:856)


JSP page:
<%@ taglib prefix="mine" uri="DiceFunctions" %>
<html>
<body>
${mine:rollIt()}
</body>
</html>

Function:
package foo;

public class DiceRoller
{
public static int rollDice()
{
return (int) ((Math.random()*6)+1);
}
}

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

<taglib 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-jsptaglibrary_2_0.xsd"
version="2.0">

<tlib-version>1.2</tlib-version>

<uri>DiceFunctions</uri>
<function>
<name>rollIt</name>
<function-class>
foo.DiceRoller
</function-class>
<function-signature>
int rollDice()
</function-signature>
</function>
</taglib>
[ October 04, 2004: Message edited by: Romy Huang ]
 
Greenhorn
Posts: 1
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator

Romy Huang wrote:I have problem with this too.

Error message:
org.apache.jasper.JasperException: The class specified in the method signature in TLD for the function mine:rollIt cannot be found.
org.apache.jasper.compiler.DefaultErrorHandler.jspError(DefaultErrorHandler.java:94)
org.apache.jasper.compiler.ErrorDispatcher.dispatch(ErrorDispatcher.java:404)
org.apache.jasper.compiler.ErrorDispatcher.jspError(ErrorDispatcher.java:219)
org.apache.jasper.compiler.Validator$1MapperELVisitor.visit(Validator.java:1405)
org.apache.jasper.compiler.ELNode$Function.accept(ELNode.java:163)
org.apache.jasper.compiler.ELNode$Nodes.visit(ELNode.java:234)
org.apache.jasper.compiler.ELNode$Visitor.visit(ELNode.java:275)
org.apache.jasper.compiler.ELNode$Root.accept(ELNode.java:94)
org.apache.jasper.compiler.ELNode$Nodes.visit(ELNode.java:234)
org.apache.jasper.compiler.Validator$ValidateVisitor.getFunctionMapper(Validator.java:1420)
org.apache.jasper.compiler.Validator$ValidateVisitor.visit(Validator.java:637)
org.apache.jasper.compiler.Node$ELExpression.accept(Node.java:913)
org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2180)
org.apache.jasper.compiler.Node$Visitor.visitBody(Node.java:2230)
org.apache.jasper.compiler.Node$Visitor.visit(Node.java:2236)
org.apache.jasper.compiler.Node$Root.accept(Node.java:485)
org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2180)
org.apache.jasper.compiler.Validator.validate(Validator.java:1515)
org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:247)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:456)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:439)
org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:552)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:291)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:301)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:248)
javax.servlet.http.HttpServlet.service(HttpServlet.java:856)


JSP page:
<%@ taglib prefix="mine" uri="DiceFunctions" %>
<html>
<body>
${mine:rollIt()}
</body>
</html>

Function:
package foo;

public class DiceRoller
{
public static int rollDice()
{
return (int) ((Math.random()*6)+1);
}
}

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

<taglib 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-jsptaglibrary_2_0.xsd"
version="2.0">

<tlib-version>1.2</tlib-version>

<uri>DiceFunctions</uri>
<function>
<name>rollIt</name>
<function-class>
foo.DiceRoller
</function-class>
<function-signature>
int rollDice()
</function-signature>
</function>
</taglib>
[ October 04, 2004: Message edited by: Romy Huang ]



Try <function-signature>int rollDice()</function-signature> (i.e. in the single line) in the TLD file. It worked for me. May be it is the correct syntax.
 
Poop goes in a willow feeder. Wipe with this tiny ad:
a bit of art, as a gift, the permaculture playing cards
https://gardener-gift.com
reply
    Bookmark Topic Watch Topic
  • New Topic