Hi,
I tried to run a simple JSP example and get an error while accessing a JSP.
Under the webapps directory of my Tomcat 4.1.10 installation I created a directory
named "Tracking". Under that directory I have a driectory named "jsp". Under that
directory I have another directy named "tracking" in which I stored two JSP files
"logInForm.jsp" and "test.jsp". The "logInForm.jsp" is a simple formular in which the
user can enter a user-name, a password and other parameter needed for an login in my
backend system. When the user submits this form the request is directed to the URL
http://localhost:8080/Tracking/jsp/tracking/test.jsp At this point Tomcat tries to
compile the "test.jsp" into a servlet. The "test.jsp" should create a new instance of
a Java class named "tracking.testBean" in which all the login data the user has
entered in the formular will be stored. The "test.jsp" is quite easy:
<%@ page errorPage="ErrorPage.jsp" %>
<%@ page import = "tracking.TestBean" %>
<jsp:useBean id="testBean" class="tracking.TestBean" scope="session">
</jsp:useBean>
<jsp:setProperty name="testBean" property="*" />
<%
java.io.FileWriter file=new java.io.FileWriter("g:\\tracking\\output.log", true);
//DEBUG
file.write("test.jsp:TestBean:\n");
file.write("\t sessionID: "+ session.getId() +"\n");
file.write("\t user: "+testBean.getUser()+"\n");
file.write("\t password: "+testBean.getPassword()+"\n");
file.write("\t server: "+testBean.getServer()+"\n");
file.close();
//DEBUG ENDE
%>
While compiling the "test.jsp" the following error occured:
org.apache.jasper.JasperException: Unable to compile class for JSP
An error occurred at line: 4 in the jsp file: /jsp/tracking/test.jsp
Generated servlet error:
[javac] Compiling 1 source file
F:\Programme\Apache\Tomcat_4.1.10\work\Standalone\localhost\Tracking\jsp\tracking\test_jsp.java:7:
cannot resolve symbol
symbol : class TestBean
location: package tracking
import tracking.TestBean;
^
F:\Programme\Apache\Tomcat_4.1.10\work\Standalone\localhost\Tracking\jsp\tracking\test_jsp.java:44:
cannot resolve symbol
symbol : class TestBean
location: package tracking
tracking.TestBean testBean = null;
^
An error occurred at line: 4 in the jsp file: /jsp/tracking/test.jsp
Generated servlet error:
F:\Programme\Apache\Tomcat_4.1.10\work\Standalone\localhost\Tracking\jsp\tracking\test_jsp.java:46:
cannot resolve symbol
symbol : class TestBean
location: package tracking
testBean = (tracking.TestBean) pageContext.getAttribute("testBean",
PageContext.SESSION_SCOPE);
^
An error occurred at line: 4 in the jsp file: /jsp/tracking/test.jsp
Generated servlet error:
F:\Programme\Apache\Tomcat_4.1.10\work\Standalone\localhost\Tracking\jsp\tracking\test_jsp.java:49:
cannot resolve symbol
symbol : class TestBean
location: package tracking
testBean = (tracking.TestBean)
java.beans.Beans.instantiate(this.getClass().getClassLoader(), "tracking.TestBean");
^
4 errors
at
org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:120)
at org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:293)
at org.apache.jasper.compiler.Compiler.generateClass(Compiler.java:315)
at org.apache.jasper.compiler.Compiler.compile(Compiler.java:326)
at org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:474)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:182)
I've no idea why Tomcat is'nt able to find the Java class "tracking.TestBean". I've
stored the file "TestBean.class" in the directory
"...webapps\Tracking\Web-Inf\classes\tracking".
Thank you for your hints!
Bye
Sven Hoffmann.
