Hi Keith,
I am not completely sure what you intend to do, but I am running myself a J2EE
application
with Apache, Tomcat and Jonas servers. The Apache server is used for handling static
HTML pages,
the Tomcat server is used for handling JSP's and servlets. The Jonas server is used
for handling
requests to enterprise beans.
You need a special J2EE server for the entity beans. Jonas is a free server, developed
by
Evidian (www.evidian.com). They have good documentation, and good mailing lists. I am
running Tomcat 3.2.1 with Jonas. I have tried to run Tomcat 4.0.1 with Jonas, but
unfortunately
have not been able yet to get that working.
Another free J2EE server is JBOSS, at least it is mentioned several times in the
archives. I
have no experience with it myself, but the reactions are positive. I do not know which
versions
of J2EE specifications are supported by any of the servers mentioned. It is always
stated,
but I forgot about them.
Hope this helps,
Sophie
Keith Ng wrote:
> Ok.
> I have decided to provide a clear example.
>
> I have moved a webapp folder to J2EE's Public_html
>
> there is this file, which works completely fine in tomcat.
>
> ============================================================================
> =============================================
>
> <%@ page import = "java.util.Calendar;" %>
>
> <!-- LOGIN FORM(absolute positioning) -->
>
> <jsp:useBean id="memberBean" class="user.UserBean" scope="session"/>
>
> <!--To set the id to retrieve from the database,use setProperty in
> InqBean-->
>
> <P style="LEFT: 14px; POSITION: absolute; TOP: 200px">
> <% if (!memberBean.isUserValid()){ %>
> <FORM name = loginForm method = "post" onSubmit = "return checkText2()"
> action="../jsp/login.jsp">
>
> <TABLE style="BORDER-BOTTOM: 1px solid; BORDER-LEFT: 1px solid;
> BORDER-RIGHT: 1px solid; BORDER-TOP: 1px solid">
>
> <TR><TD><span style = "font-family:Arial;font-size:8pt">Login :
> <INPUT name=memberId size=8 maxlength = "9" style="BORDER-BOTTOM: 1px
> solid; BORDER-LEFT: 1px solid; BORDER-RIGHT: 1px solid; BORDER-TOP: 1px
> solid">
> </span></TD></TR>
>
> <TR><TD><span style = "font-family:Arial;font-size:8pt">Password :
> <INPUT type="password" name=password size=5 maxlength = "10"
> style="BORDER-BOTTOM: 1px solid; BORDER-LEFT: 1px solid; BORDER-RIGHT: 1px
> solid; BORDER-TOP: 1px solid">
> </span></TD></TR>
>
> <TR>
> <TD align="left" ><INPUT style="BORDER-BOTTOM: 1px solid; BORDER-LEFT: 1px
> solid; BORDER-RIGHT: 1px solid; BORDER-TOP: 1px solid; FONT-SIZE: 9pt"
> type=submit value=Login>
> </TD>
> </TR>
>
> </TABLE>
> </FORM>
> <%
> }
> else{
> Calendar cal = Calendar.getInstance();
> %>
>
> <TABLE style="BORDER-BOTTOM: 1px solid; BORDER-LEFT: 1px solid;
> BORDER-RIGHT: 1px solid; BORDER-TOP: 1px solid" width = "110">
>
> <TR><TD><span style = "font-family:Arial;font-size:8pt">Login as :<br>
> <b><jsp:getProperty name="memberBean" property="memberId" /></b><br>
> Login time : <br><b>
> <%=cal.getTime()%></b>
> </span></TD></TR>
>
> </TABLE>
> <%
> }
> %>
> </P>
>
> ============================================================================
> ================================
>
> but it simply wun work in J2EE's server. It gives an error liek this.
>
> ============================================================================
> ===============================
>
> A Servlet Exception Has Occurred
> Exception Report:
> org.apache.jasper.JasperException: user.UserBean
> at
> org.apache.jasper.compiler.BeanRepository.getBeanType(BeanRepository.java:18
> 3)
> at
> org.apache.jasper.compiler.GetPropertyGenerator.generate(GetPropertyGenerato
> r.java:102)
> at
> org.apache.jasper.compiler.JspParseEventListener$GeneratorWrapper.generate(J
> spParseEventListener.java:831)
> at
> org.apache.jasper.compiler.JspParseEventListener.generateAll(JspParseEventLi
> stener.java:241)
> at
> org.apache.jasper.compiler.JspParseEventListener.endPageProcessing(JspParseE
> ventListener.java:197)
> at org.apache.jasper.compiler.Compiler.compile(Compiler.java:215)
> at org.apache.jasper.servlet.JspServlet.loadJSP(JspServlet.java:528)
> at
> org.apache.jasper.servlet.JspServlet$JspServletWrapper.loadIfNecessary(JspSe
> rvlet.java:176)
> at
> org.apache.jasper.servlet.JspServlet$JspServletWrapper.service(JspServlet.ja
> va:188)
> at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:381)
> at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:458)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
> at
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Application
> FilterChain.java:247)
> at
> org.apache.catalina.core.ApplicationFilterChain.access$0(ApplicationFilterCh
> ain.java:197)
> at
> org.apache.catalina.core.ApplicationFilterChain$1.run(ApplicationFilterChain
> .java:176)
> at java.security.AccessController.doPrivileged(Native Method)
> at
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterCh
> ain.java:172)
> at
> org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.ja
> va:243)
> at
> org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:5
> 66)
> 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.ja
> va:215)
> at
> org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:5
> 66)
> at
> org.apache.catalina.valves.CertificatesValve.invoke(CertificatesValve.java:2
> 46)
> at
> org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:5
> 64)
> 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:2314)
> at
> org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:164
> )
> at
> org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:5
> 66)
> at
> org.apache.catalina.authenticator.SingleSignOn.invoke(SingleSignOn.java:368)
> at
> org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:5
> 64)
> 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:5
> 66)
> 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:
> 995)
> at
> org.apache.catalina.connector.http.HttpProcessor.run(HttpProcessor.java:1088
> )
> at java.lang.Thread.run(Thread.java:484)
>
> Root Cause:
> java.lang.ClassNotFoundException: user.UserBean
> at
> org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.jav
> a:1264)
> at
> org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.jav
> a:1113)
> at
> org.apache.jasper.compiler.BeanRepository.getBeanType(BeanRepository.java:18
> 1)
> at
> org.apache.jasper.compiler.GetPropertyGenerator.generate(GetPropertyGenerato
> r.java:102)
> at
> org.apache.jasper.compiler.JspParseEventListener$GeneratorWrapper.generate(J
> spParseEventListener.java:831)
> at
> org.apache.jasper.compiler.JspParseEventListener.generateAll(JspParseEventLi
> stener.java:241)
> at
> org.apache.jasper.compiler.JspParseEventListener.endPageProcessing(JspParseE
> ventListener.java:197)
> at org.apache.jasper.compiler.Compiler.compile(Compiler.java:215)
> at org.apache.jasper.servlet.JspServlet.loadJSP(JspServlet.java:528)
> at
> org.apache.jasper.servlet.JspServlet$JspServletWrapper.loadIfNecessary(JspSe
> rvlet.java:176)
> at
> org.apache.jasper.servlet.JspServlet$JspServletWrapper.service(JspServlet.ja
> va:188)
> at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:381)
> at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:458)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
> at
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Application
> FilterChain.java:247)
> at
> org.apache.catalina.core.ApplicationFilterChain.access$0(ApplicationFilterCh
> ain.java:197)
> at
> org.apache.catalina.core.ApplicationFilterChain$1.run(ApplicationFilterChain
> .java:176)
> at java.security.AccessController.doPrivileged(Native Method)
> at
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterCh
> ain.java:172)
> at
> org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.ja
> va:243)
> at
> org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:5
> 66)
> 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.ja
> va:215)
> at
> org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:5
> 66)
> at
> org.apache.catalina.valves.CertificatesValve.invoke(CertificatesValve.java:2
> 46)
> at
> org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:5
> 64)
> 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:2314)
> at
> org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:164
> )
> at
> org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:5
> 66)
> at
> org.apache.catalina.authenticator.SingleSignOn.invoke(SingleSignOn.java:368)
> at
> org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:5
> 64)
> 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:5
> 66)
> 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:
> 995)
> at
> org.apache.catalina.connector.http.HttpProcessor.run(HttpProcessor.java:1088
> )
> at java.lang.Thread.run(Thread.java:484)
>
> ============================================================================
> =================================
>
> It really makes me wonder, are J2EE using the same specification as Tomcat?
> Why apps developed in Tomcat wun run under J2EE? Or Have I simply forgotten
> some important steps?
>
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