将Java类导入JSP

Question

That's the problem.

I developed a web app with NetBeans 7 , Tomcat 7 and hsqldb ; on my desktop all is Ok.

When I upload my java files (.class, .jsp and .jar packages) to my site and try to load a jsp page which imports a class contained in a package (class FunzioniSessione in package it.swlab.util ), I get the following error:

org.apache.jasper.JasperException: Unable to compile class for JSP:  
An error occurred at line: 6 in the generated java file 
Only a type can be imported. it.swlab.util.FunzioniSessione resolves to a package 

An error occurred at line: 7 in the jsp file: /index.jsp 
FunzioniSessione cannot be resolved to a type 
4: <% 
5: synchronized(this) 
6: { 
7: FunzioniSessione funzioniSessione = new FunzioniSessione(); 
8: String percorso = config.getServletContext().getRealPath("/"); 
9: funzioniSessione.inizializza(session,request,response,percorso,"infocar"); 
10: boolean connesso = session.getAttribute("utenteConnesso") != null; 

An error occurred at line: 7 in the jsp file: /index.jsp 
FunzioniSessione cannot be resolved to a type 
4: <% 
5: synchronized(this) 
6: { 
7: FunzioniSessione funzioniSessione = new FunzioniSessione(); 
8: String percorso = config.getServletContext().getRealPath("/"); 
9: funzioniSessione.inizializza(session,request,response,percorso,"infocar"); 
10: boolean connesso = session.getAttribute("utenteConnesso") != null; 

Stacktrace: 
 org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:93) 
 org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:330) 
 org.apache.jasper.compiler.JDTCompiler.generateClass(JDTCompiler.java:451) 
 org.apache.jasper.compiler.Compiler.compile(Compiler.java:328) 
 org.apache.jasper.compiler.Compiler.compile(Compiler.java:307) 
 org.apache.jasper.compiler.Compiler.compile(Compiler.java:295) 
 org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:565) 
 org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:309) 
 org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:308) 
 org.apache.jasper.servlet.JspServlet.service(JspServlet.java:259) 
 javax.servlet.http.HttpServlet.service(HttpServlet.java:729) 

note The full stack trace of the root cause is available in the Apache Tomcat/5.5.33 logs. 

To prevent some obvious answers, I add some more information:

1. The package containing the class FunzioniSessione (named funzioniComuni.jar ) is in the WEB-INF\\lib folder
2. I can't look at the logs as the note in the stacktrace suggests, because I have no access to the logs folder of my provider's Tomcat server. 3 The directive for the import is <%@page import="it.swlab.util.FunzioniSessione"%> I tried also with a ";" at the end ( <%@page import="it.swlab.util.FunzioniSessione;"%> ) but with no success.

I wait for some suggestions.

Thank you

Answer 1

Is the FunzioniSessione on you classpath ? Generally we keep the classes in web-inf\\classes which is already onclasspth. Can you ensure the deployment directory has this structure with you class in expected package ?