Deploying an applet with jsp

Hi,
I am trying to make an applet accessible within a JSP, but it won't load, I have the following error in my browser's Java console:
java.lang.ClassFormatError: Incompatible magic value 1013461310 in class file MyApplet
The applet is in the same directory of the JSP that calls it wich is the root of the project. Here's the code in the JSP:
<jsp:plugin type="applet" codebase="." code="MyApplet.class" width="408" height="410" >
<jsp:fallback>
Plugin tag OBJECT or EMBED not supported by browser.
</jsp:fallback>
</jsp:plugin>
There are no preblems when I call the applet from a usual html file with the applet tag.
What am I doing wrong?

in order to pass information from your applet to the JSP page, you could call your JSP page from applet.
you may for example open a new browser window whitch is redirected to your JSP page, and user responses are sent as parameter concatanated to the URL
or you could use post instead of get, anyhow, the idea is that you try to connect to your JSP's url and send these user responses as well...
but if you would like the page, on which the applet is, to change according to user response, then you cannot do that (if you are not changing content of forms -- that can be done with LiveConnect <- calling javascript from java applet)
i hope you get some ideas.
L.

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sure it is possible.
main difference is, that applet maintance a permanten connection to the server and therefor has a 'smaller' communication where as with servlets/jsp the client will have to communicate more information for each request.
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Error while deploying war file with jsp precompile option in weblogic 7.0

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Hi,
1] Remove following from server.xml
<Context path="/SEA" docBase="SEA" debug="0"/>
2] Paste SEA.WAR (test WAR file) into /webapps of TOMCAT
3] Start Tomcat Server - This will create SEA folder under webapps
4] Stop server.
5] Add following to server.xml
<Context path="/SEA" docBase="SEA" debug="0"/>
6] Start Tomcat Server
7] Access the URL.
This will work. Somehow Tomcat does not extract war file contents which are mentioned in server.xml.
I have Apache Tomcat 4.0.3 and faced this problem. The above solution works for it.
Regards,
Sandesh
hi.
I have put my SEA.WAR (test WAR file) into /webapps of
TOMCAT.
I checked the server.xml and put:
     <Context path="/SEA" docBase="SEA" debug="0"/>
I restarted TOMCAT and tried to execute the file:
     http://localhost:8080/SEA/index.jsp
But I got error message:
Apache Tomcat/4.0.3 - HTTP Status 404 -
/SEA/index.jsp
What was happenning?
Anyone can help me?
Thank you.

Communicating with Applet with JSP

Hi,
I am developing a tool that uses an applet to display information as a specialized spider table. I have used parameters to input information into the applet and this is working fine!
I want to know how the applet can then output information based on the users choice inside the applet.
E.g. The users can select values on spider diagram and I want to output these values to a place where I can access them (i.e. session or application level attributes for the JSP).
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Many thanks in advance!
GJ

Hey guys,
I think I got the answer. I can use the java.net.URLConnection and java.net.URL classes to open a standard HTTP connection to the web server. The server then passes this information to the servlet in the normal way.
I'll let you know how I get on!
GJ

How to deploy a JSP with jsp:plugin with applet type?

Hi,
I am a new comer for JSP and when to try to a simple JSP with plugin for applet. Following is part of my JSP script:
<jsp:plugin type="applet" code="DigitalClock" align="center" height="25" width="300"
>
     <jsp:params>
          <jsp:param name="language" value="<%=request.getLocale().getLanguage()%>" />
          <jsp:param name="country" value="<%=request.getLocale().getCountry()%>" />
          <jsp:param name="bgcolor" value="FFFFFF" />
          <jsp:param name="fgcolor" value="CC0066" />
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</jsp:plugin>
===========
And Java plugin tell me that can't find DigitalClock class. I want to ask how to deply this JSP using deploytool.
Thanks,
Wise

Hi
It should be in such a way,
The Jsp:param is similar to PARAM used in Applet.
<jsp:plugin type="applet"
code="MyApplet.class"
width="475" height="350"
<jsp:params>
<jsp:param name = "PARAM1" value="VALUE1" />
</jsp:params>
</jsp:plugin>
jsp:fallback Element
It provides alternate text to browsers that do not Support OBJECT or EMBED. You can use this element in the same way as you provide alternate text in your applet.
<jsp:fallback>
<b> Error: This example requires java </b>
</jsp:fallback>
</jsp:plugin>
I hope this will help you.
Thanks
Bakrudeen
Technical Support Engineer
Sun MicroSystems Inc, India

Re: Including Applet in JSP with Dynamic input| Help needed

Hi All,
We are into a project in Oracle Portal Server where in we want to embed a result of a standalone application in Portal page.
We can do that once we can embed the result of the standalone application which generates applet based on the input it gets from the current application's database.
If it was static we could have used jsp:plugin but, it fails in our case!
We are clueless as to how to embed an applet which will pick up the data dynamically.
Can anyone of you help me in this regard?
Thanks & Regards
Arthi

Hi Arthi,
I think this might help you to get an idea why jsp:plugin tag does not allow for dynamically called applets.
<jsp:plugin type=applet height="100%" width="100%"
archive="myjarfile.jar,myotherjar.jar"
codebase="/applets"
code="com.foo.MyApplet" >
<jsp:params>
<jsp:param name="enableDebug" value="true" />
</jsp:params>
<jsp:fallback>
Your browser does not support applets.
</jsp:fallback>
</jsp:plugin>
The plugin example illustrates a <html> uniform way of embedding applets in a web page. Before the advent of the <OBJECT> tag, there was no common way of embedding applets. This tag is poorly designed and hopefully future specs will allow for dynamic attributes (height="${param.height}", code="${chart}", etc) and dynamic parameters. Currently, the jsp:plugin tag does not allow for dynamically called applets. For example, if you have a charting applet that requires the data points to be passed in as parameters, you can't use jsp:params unless the number of data points are constant. You can't, for example, loop through a ResultSet to create the jsp:param tags. You have to hand code each jsp:param tag. Each of those jsp:param tags however can have a dynamic name and a dynamic value.
I think you can get better information if you look in to the below link
http://pdf.coreservlets.com/CSAJSP-Chapter12.pdf
Many Thanks,
Ramesh.

How to deploy jclient applet to 9iAS

Hi All,
I have urgency problem about applet deploy.
Step:in jdevloper 903
a) to produce new empty porject.
b) to produce Swing/JClient for BC4J -----> FORM ------->select "applet" form.
c) to produce new Applet HTML page ---->select a applet .
d) to run Applet Html page is OK.
e) The deploy Applet Html page to 9iAS or standard OC4J,deploy profile itself produce.
f) To run applet from 9iAS or standard OC4J display can not find applet class.
To tell me as soon as possible thank you
regards,
Majin

Hi Frank,
problem 1
a) produce applet of Jclient in jdev9032.
b) produce applet HTML page to select applet above
c) to run applet HTML page is OK.
d) to use convert HTML tools convert (tools menus) applet
HTML page
e) to run applet HTML error:
java.lang.NoClassDefFoundError: oracle/jbo/uicli/controls/JClientPanel
at java.lang.ClassLoader.defineClass0(Native Method)
problem 2
to change <applet> tag to <jsp:plugin> into jsp page to
run it also occur error:
java.lang.NoClassDefFoundError: oracle/jbo/uicli/controls/JClientPanel
at java.lang.ClassLoader.defineClass0(Native Method)
To place applet code in same directory with jsp or html page codebase=".".
To deploy 9iAS have same error whether 9iAS and database
in same machine or not.
I remember install direct net connect if 9iAS and database
is not same machine
regards,
Majin
[email protected]

Cannot deploy BPEL process with SSO to BPELConsole activated

I cannot deploy BPEL process with SSO to BPELConsole activated. Here is the error I get from JDeveloper (sorry for the french error message):
Problème détecté lors de la connexion au serveur "ssdvoiagu.dev.local.csst.qc.ca" sur le port "7781" : java.security.AccessControlException: access denied (com.collaxa.security.DomainPermission generique read)
at java.security.AccessControlContext.checkPermission(AccessControlContext.java:264)
at java.security.AccessController.checkPermission(AccessController.java:427)
at com.collaxa.security.OC4JSecurityService.checkAccess(OC4JSecurityService.java:16)
at com.collaxa.security.SecurityService.checkDomainAccess(SecurityService.java:26)
at com.collaxa.cube.fe.util.ServletUtils.getLocatorWithoutUrlRewrite(ServletUtils.java:162)
at deployHttpClientProcess.jspService(_deployHttpClientProcess.java:332)
at com.orionserver.http.OrionHttpJspPage.service(OrionHttpJspPage.java:59)
at oracle.jsp.runtimev2.JspPageTable.service(JspPageTable.java:462)
at oracle.jsp.runtimev2.JspServlet.internalService(JspServlet.java:594)
at oracle.jsp.runtimev2.JspServlet.service(JspServlet.java:518)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
at com.evermind.server.http.ResourceFilterChain.doFilter(ResourceFilterChain.java:65)
at oracle.security.jazn.oc4j.JAZNFilter$1.run(JAZNFilter.java:396)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAsPrivileged(Subject.java:517)
at oracle.security.jazn.oc4j.JAZNFilter.doFilter(JAZNFilter.java:410)
at com.evermind.server.http.ServletRequestDispatcher.invoke(ServletRequestDispatcher.java:623)
at com.evermind.server.http.ServletRequestDispatcher.forwardInternal(ServletRequestDispatcher.java:370)
at com.evermind.server.http.HttpRequestHandler.doProcessRequest(HttpRequestHandler.java:871)
at com.evermind.server.http.HttpRequestHandler.processRequest(HttpRequestHandler.java:453)
at com.evermind.server.http.AJPRequestHandler.run(AJPRequestHandler.java:302)
at com.evermind.server.http.AJPRequestHandler.run(AJPRequestHandler.java:190)
at oracle.oc4j.network.ServerSocketReadHandler$SafeRunnable.run(ServerSocketReadHandler.java:260)
at com.evermind.util.ReleasableResourcePooledExecutor$MyWorker.run(ReleasableResourcePooledExecutor.java:303)
at java.lang.Thread.run(Thread.java:595)
Target BPEL process manager runs under SOA 10.1.3.3. When the SSO to BPELConsole is disabled, the deployment works just fine. Is there any way to make it work with SSO?

Please check:
http://blog.jpoot.com/category/oracle-appserver/oid-ldap/
We had some issues with SSO and SSL but everything is running now.
Marc

How to 'deploy' an Applet when class files are on client machine?

Hi all,
I've searched through these forums and I can't find where my specific question has been asked before, so please accept my apologies for any duplication.
I am trying to develop an applet for use on an intranet. (The specific requirement is that the applet must operate a scanner, and upload the scanned images to the database - we want it to be an applet so that it seamlessly integrates with the rest of the web application from the user's POV).
Therefore the applet needs to run outside of the sandbox, but I don't want to go to all the hassle of getting a certificate from Verisign and signing the applet - that doesn't seem like it should be necessary, since there is no problem getting access to the client PC to install the class files by hand!
I have read on this tutorial page that applets "that are loaded from the local file system (from a directory in the user's CLASSPATH) have none of the restrictions that applets loaded over the network do," so I don't think I am barking up the wrong tree:
http://java.sun.com/docs/books/tutorial/deployment/applet/security.html
That is exactly what I want to do! But whenever I try to run the applet, I get a no class definition found exception. However, if I run the applet as a standalone application (using its static main method) then the JRE has no trouble locating the class file - so I know that my CLASSPATH environment variable is set ok.
Therefore I think the problem must be in my JNLP file. This is what mine looks like at present:
<?xml version="1.0" encoding="UTF-8"?>
<jnlp spec="1.0+" codebase="http://localhost:8080/JGNS008" href="http://localhost:8080/JGNS008/scanner-applet.jnlp">
    <information>
        <title>Scanner Applet Prototype</title>
        <vendor>Fooware</vendor>
    </information>
    <resources>
        
        <j2se version="1.6+" href="http://java.sun.com/products/autodl/j2se" />
        <jar href="ScannerApplet.jar" main="false" />
    </resources>
    <applet-desc
         name="Scanner Applet Prototype"
         main-class="uk.co.fooware.ScannerApplet"
         width="72"
         height="20">
     </applet-desc>
     <update check="background"/>
</jnlp>How do I rewrite this so that it doesn't try to download the class files from the network?
Many thanks,
Richard.

richardwild wrote:
..I am trying to develop an applet for use on an intranet. (The specific requirement is that the applet must operate a scanner, and upload the scanned images to the database - we want it to be an applet so that it seamlessly integrates with the rest of the web application from the user's POV).
Therefore the applet needs to run outside of the sandbox, but I don't want to go to all the hassle of getting a certificate from Verisign and signing the applet - that doesn't seem like it should be necessary,.. Code can be digitally signed without a 'verified' certificate from Versign.
..since there is no problem getting access to the client PC to install the class files by hand!
I have read on this tutorial page that applets "that are loaded from the local file system (from a directory in the user's CLASSPATH) have none of the restrictions that applets loaded over the network do," so I don't think I am barking up the wrong tree:
http://java.sun.com/docs/books/tutorial/deployment/applet/security.html
Huh. I had never heard of that, but since I do not have access to my end user's classpath it is not that important to me.
BTW - I am guessing they mean the path indicated by [http://pscode.org/prop/all.html?prop=java.class.path].
And putting classes into JRE folders seems very hackish to me.
That is exactly what I want to do! But whenever I try to run the applet, I get a no class definition found exception. However, if I run the applet as a standalone application (using its static main method) then the JRE has no trouble locating the class file - so I know that my CLASSPATH environment variable is set ok.Huh?
Therefore I think the problem must be in my JNLP file. Huh?!? Why not deploy the applet using a standard applet element? The only way to configure an applet using a JNLP is ..
a) If the applet is intended to be free floating.
b) If the applet is intended to be embedded in a plug-in2 architecture JRE. Why impose that restriction, when it seems unnecessary and unproductive?
Note that the second option is very new, and I would not expect all the things mentioned in the document you linked, to apply equally to JNLP embedded applets. If you want this applet embedded, I suggest you drop the entire JNLP approach and use a standard applet element.

How can I create a Login-page with jsp???

Hello,
I have to create a page with JSP code on the Netweaver Developer Studio.
But I do not know how I do it.
Can anyone tell me what to write in the portalapp.xml?
An example would be very helpful.
Thank you
Greetings

As you can see in the example:
The portalapp.xml file (deployment descriptor) provides configuration information for your application, and defines the components and services in your application. For each component and service, you specify the implementing Java class and configuration information.
For more information on the format of the portalapp.xml, see Deployment Descriptor (portalapp.xml).
<application>
    <application-config>
        <property name="SharingReference" value="com.sap.portal.navigation.service, com.sap.portal.navigation.api_mimeservice, com.sap.portal.navigation.helperservice"/>
        <property name="Vendor" value="MY_COMPANY"/>
        <property name="SecurityArea" value="PERMISSION"/>
    </application-config>
    <components>
        <component name="SimpleNavigationExample">
            <component-config>
                <property name="ClassName" value="MY_CLASS"/>
                <property name="SecurityZone" value="no_safety"/>
            </component-config>
            <component-profile/>
        </component>
    </components>
    <services/>
</application>
You can only update in this example, your class name and other details:
<property name="Vendor" value="sap.com"/>
<property name="SecurityArea" value="MyCompany"/>
<property name="ClassName" value="LOGINCLASS"/>
<property name="SecurityZone" value="no_safety"/>
Modify this portalapp.xml file as follows:
       1.      NAVIGATION SERVICE, so you must add references to the following portal applications that define these services:
        com.sap.portal.navigation.service
        com.sap.portal.navigation.api_mimeservice
        com.sap.portal.navigation.helperservice
       2.      In the <application-config> section, create the following properties that help to define the security zone for all components and services in this application:
○     Vendor: String identifying the company or organization that provided the application, for example, sap.com.
○     SecurityArea: String identifying the security area for the application, for example, NetWeaver.portal.
       3.      In the <component-config> section for the mySiteMap component, create the property SecurityZone to define the specific security zone for the component.
For Permission, check this document:
http://help.sap.com/saphelp_nw04s/helpdata/en/44/489e2df5ee4e35e10000000a1553f6/frameset.htm

Use of Threads with JSP's

Can you use threads in a web application that uses JSP's plus Servlets and Beans ?
We have a JRUN 3.1 application using JSPs, Servlets and Beans. Shortly after we went live it became apparent that any 2 users using the same object experienced problems as one object was overwriting another. In a panic the problem was solved by whacking SYNCHRONISED on all objects.
Now we want to write another application, are there strategies for using Threads with JSPs?
Would this be part of the webserver configuration or would the application be coded in a certain way ?
Please can you give me a simplistic answer or point me to some documentation that gives a simple overview.
Thanks Steve

Hi,
You can use thread with jsp, i am sending u a example
package thread;
import java.io.Serializable;
public class TaskBean implements Runnable, Serializable {
private int counter;
private int sum;
private boolean started;
private boolean running;
private int sleep;
public TaskBean() {
counter = 0;
sum = 0;
started = false;
running = false;
sleep = 100;
protected void work() {
try {
Thread.sleep(sleep);
counter++;
sum += counter;
} catch (InterruptedException e) {
setRunning(false);
public synchronized int getPercent() {
return counter;
public synchronized boolean isStarted() {
return started;
public synchronized boolean isCompleted() {
return counter == 100;
public synchronized boolean isRunning() {
return running;
public synchronized void setRunning(boolean running) {
this.running = running;
if (running)
started = true;
public synchronized Object getResult() {
if (isCompleted())
return new Integer(sum);
else
return null;
public void run() {
try {
setRunning(true);
while (isRunning() && !isCompleted())
work();
} finally {
setRunning(false);
And JSP page start.jsp
<% session.removeAttribute("task"); %>
<jsp:useBean id="task" scope="session"
class="thread.TaskBean"/>
<% task.setRunning(true); %>
<% new Thread(task).start(); %>
<jsp:forward page="status.jsp"/>
///////////////// status .jsp
<jsp:useBean id="task" scope="session"
class="thread.TaskBean"/>
<HTML>
<HEAD>
<TITLE>JSP Progress Bar</TITLE>
<% if (task.isRunning()) { %>
<SCRIPT LANGUAGE="JavaScript">
setTimeout("location='status.jsp'", 1000);
</SCRIPT>
<% } %>
</HEAD>
<BODY>
<H1 ALIGN="CENTER">JSP Progress Bar</H1>
<H2 ALIGN="CENTER">
Result: <%= task.getResult() %><BR>
<% int percent = task.getPercent(); %>
<%= percent %>%
</H2>
<TABLE WIDTH="60%" ALIGN="CENTER"
BORDER=1 CELLPADDING=0 CELLSPACING=2>
<TR>
<% for (int i = 10; i <= percent; i += 10) { %>
<TD WIDTH="10%" BGCOLOR="#000080"> </TD>
<% } %>
<% for (int i = 100; i > percent; i -= 10) { %>
<TD WIDTH="10%"> </TD>
<% } %>
</TR>
</TABLE>
<TABLE WIDTH="100%" BORDER=0 CELLPADDING=0 CELLSPACING=0>
<TR>
<TD ALIGN="CENTER">
<% if (task.isRunning()) { %>
Running
<% } else { %>
<% if (task.isCompleted()) { %>
Completed
<% } else if (!task.isStarted()) { %>
Not Started
<% } else { %>
Stopped
<% } %>
<% } %>
</TD>
</TR>
<TR>
<TD ALIGN="CENTER">
<BR>
<% if (task.isRunning()) { %>
<FORM METHOD="GET" ACTION="stop.jsp">
<INPUT TYPE="SUBMIT" VALUE="Stop">
</FORM>
<% } else { %>
<FORM METHOD="GET" ACTION="start.jsp">
<INPUT TYPE="SUBMIT" VALUE="Start">
</FORM>
<% } %>
</TD>
</TR>
</TABLE>
</BODY>
</HTML>
////////////////////////////// stop.jsp
<jsp:useBean id="task" scope="session"
class="thread.TaskBean"/>
<% task.setRunning(false); %>
<jsp:forward page="status.jsp"/>
deploy it into ur server and run start.jsp
and see whatb happens

Unable to load Applet in JSP using Tomcat 5.5.12

Hi
I am aunable to applet in jsp using Tomcat 5.5.12 and JRE 1.5. Below is the code that I am using
                                   <applet
                                   codebase = "."
                                   archive = "WebPOSApplet.jar"
                                   code = "webposprint.WPMainApplet.class"
                                   name = "Trans Applet"
                                   width = "450"
                                   height = "115"
                                   hspace = "0"
                                   vspace = "0"
                                   align = "middle"
                                   >
<param name = "redirectInfo" value = "SearchProducts.do">
                                   </applet>
<%/*%>
<OBJECT
                                   classid = "clsid:CAFEEFAC-0014-0002-0000-ABCDEFFEDCBA"
                                   codebase = "http://java.sun.com/products/plugin/autodl/jinstall-1_4_2-windows-i586.cab#Version=1,4,2,0"
                                   WIDTH = 450 HEIGHT = 115 >
<PARAM NAME = CODE VALUE = webposprint.WPMainApplet.class>
<PARAM NAME = archive VALUE = WebPOSApplet.jar>
<PARAM NAME = "type" VALUE = "application/x-java-applet;jpi-version=1.4.2">
<param name = "redirectInfo" value = "SearchProducts.do">
<PARAM NAME = "scriptable" VALUE = "false">
<PARAM NAME = model VALUE=models/buckminsterfullerine.xyz>
<embed width="450" height="115" code="webposprint.WPMainApplet.class" archive="WebPOSApplet.jar" type="application/x-java-applet;jpi-version=1.4.2" redirectinfo="SearchProducts.do" scriptable="false" model="models/buckminsterfullerine.xyz" src="webposprint.WPMainApplet.class">
</embed> <COMMENT> <EMBED
                                   type = "application/x-java-applet;jpi-version=1.4.2" \
                                   CODE = webposprint.WPMainApplet.class\
                                             archive = WebPOSApplet.jar\
                                   WIDTH = 373 \
                                   HEIGHT = 167 \
                                   model =models/buckminsterfullerine.xyz \
                                        scriptable = false \
                                        pluginspage = "http://java.sun.com/products/plugin/index.html#download"> <NOEMBED>
alt="Your browser understands the <APPLET>
tag but isn't running the applet, for some reason."
Your browser is completely ignoring the <APPLET>
tag! </NOEMBED> </EMBED> </COMMENT>
</OBJECT>
<%*/%>
This code doesn't seems working with Tomcat 5.5.12. I works fine with Tomcat 4.1.31
Please help
Thanks

Applets run client side - which means the relevant class files need to be downloaded to the client.
Anything under the WEB-INF directory is not directly accessible by the client. Nothing under WEB-INF can be downloaded.
ergo, specifying the WEB-INF directory as part of your applet codebase is a bad idea.
I would suggest try copying the applet classes from under WEB-INF to some other place in your application.
Also, you should probably specify the full class name of your Applet in the plugin tag.
<%@ page import="com.util.MyApplet" %>
<jsp:plugin type="applet" code="com.util.MyApplet" codebase="/classes" width="250" height="100" jreversion="1.6">
     <jsp:fallback>
          <B>Unable to start plugin!</B>
     </jsp:fallback>
</jsp:plugin>cheers,
evnafets

Applets in JSP --- I'm going crazy!

I am using an applet I have written on a JSP page which I have also written.
Using: Win2K, IE6, J2SDK 1.4, Tomcat 4.0.3
I have several problems. Even if you can answer only one of them, it will be a great help!
Here is how I'm adding the applet.
<jsp:plugin type="applet" code="RawData.class" name="rawData" jreversion="1.4" width="700" height="55" >
<jsp:fallback>
Plugin tag OBJECT or EMBED not supported by browser.
</jsp:fallback>
</jsp:plugin>
</TD>
Problem 1) I can only get the applet loaded if the applet class file is in the same folder as the JSP file. Anything else, and I get a ClassNotFoundException.
Can't get the CODEBASE to do anything for me at all.
I set my codebase="/RawData/classes", but makes no difference.
I then tried Jarring my applet and placing RawData.jar in the same folder with the JSP. But also no go. I then set codebase="RawData.jar", but guess what... Nothing.
So my questions are: How do I get the applet to load from the applet.class files using codebase if the applet files are in a sub folder? And how do I get my applet to load from a Jar?
Problem 2) Once this applet is loaded, I have the biggest nightmare imaginable to get the browser to load a new version after I have updated it. And trust me, there is not and old version of the applet.class in my ClassPath. In fact there is not another copy of the applet.class file anywhere on my PC. I made sure. I have also disabled the Java Plugin Cache option, and deleted my temporary internet files with Explorer. But the thing persists in loading the old version from somewhere. What the heck do I do? I fear this is driving me insane.. :)
Problem 3) I need the HTML components to interact with the applet.
When I do a call to an applet function passing no parameters it works fine, and I get the value back, like this:
<SCRIPT LANGUAGE="VBScript">

</SCRIPT>
But when I do a function call, passing parameters, the scrip just stops working altogether, like this.
<SCRIPT LANGUAGE="VBScript">

</SCRIPT>
Why is this. What am I doing wrong.
And better yet... Is there a way of manipulating the HTML components from within JSP scriplet <% ... %>?
Please if anyone can help... It will be greatly appreciated. I am at a loss!
Thanx. Quigrim

Quigrim wrote:
Problem 1) I can only get the applet loaded if the applet class file
is in the same folder as the JSP file. Anything else, and I get a
ClassNotFoundException. Can't get the CODEBASE to do anything for me
at all.Set CODEBASE to point to the relative directory where your code is. If it is in the same directory as the JSP then CODEBASE="."; if it is in a sub-directory 'classes' then CODEBASE="classes".
Problem 2) Once this applet is loaded, I have the biggest nightmare
imaginable to get the browser to load a new version after I have
updated it. Close ALL browser windows - you have to force the plugin JVM to re-initialise - I've not found any other way to do it.
Hope these help you.
Phil.

Signing Applets with javakey

Hi All,
I have an Intranet application that uses a signed applet to access files on the client. It all works fine using JDK1.3 or 1.4 and signing the Applet with keytool.
I now need to support an older server that only has JDK1.1 available. Does anyone have any tips on how to sign my Applet with javakey?
Also what JRE version should be installed on the clients?
Thanks in advance.
P.S. I have followed the example at http://java.sun.com/security/usingJavakey.html but not got it to work.

try this..
http://forums.java.sun.com/thread.jsp?forum=63&thread=132769

Deploying InfoBus Applet

I am new to java and JDeveloper. I have created a simple InfoBus Java Applet with a connection to an Oracle database. How do I test to see if it works outside the Jdeveloper environment. I went through the steps of packaging my files into a .jar file, deploying this jar file into my deployment directory:jdev\redist, copying the .zip and .jar files referenced in my html file into my deployment directory. What do I do now? Do I need to set a classpath to my deployment directory? How do I execute the application, which is in the jar file, to view in a web browser?

You have made a few mistakes.
You can easily package your applet by creating a deployment profile (Project | Deploy | New Deployment profile...)
Once you include all the appropriate libraries and such, you will have a Jar/Zip file.
The Redist directory has nothing to do with your deployment target - redist simply contains libraries that you can safely distribute with your apps without licencing issues.
Now, to test your applet outside of JDeveloper, you can do several things:
1. You can deploy it to your actual server, etc which you will do eventually.
2. You can test it using the AppletViewer.
To do this, Create a CMD shell. Go to the [JDev]\bin directory. Run SetVars.bat to initialize your environment variables. Then run AppletViewer -classpath...;YOUR-JAR appletName
I hope this helps,
John
null

Deploying an applet with jsp

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