Applet can get arbitrary objects as a param tag?

I wonder if I can get an ViewObject(which is in Info table ) as a value of value
attribute in applet tag. I mean an object in the infotable of jsp containing the
applet can be a value of value attribute in applet tag.
I have this question, since I should give a viewobject to applet when I push
submit button in jsp containing the applet.
Help! please~

Hi Sam,
Instead of point 1, can you try poin 2 to see.
1.
<jsp:include page="test2.jsp" flush="true">
     <jsp:param name="fname" value="FirstName"/>
     <jsp:param name="lname" value="LastName"/>
     <jsp:param name="age" value="11"/>
</jsp:include>
2.
<jsp:include page="test2.jsp?fname=FirstName&lname=LastName&age=11" flush="true"/>
3. test2.jsp
<%=request.getParameter("fname")%>
<%=request.getParameter("lname")%>
<%=request.getParameter("age")%>
-- Paul

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Can i get the content of a HTML tag?

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Is there inbuild Handler in weblogic using which i can get the MessageContext object

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"manoj cheenath" <[email protected]> wrote:
You can get to MessageContext from a handler. Check out an example of
handler
to see how you can get Message out of MessageContext.
-manoj
"Akhil Nagpal" <[email protected]> wrote in message
news:[email protected]..
HI manoj,
Thanks for your reply.otherwise i thought that i wont get any morehelp
on this
forum :-) ...
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development
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more
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The other problem i had to make use of handler and my appl is workingas of
now :-)
Regards
Akhil Nagpal
"manoj cheenath" <[email protected]> wrote:
You can not do this in WLS 7.0. The next major release (WLS 8.1) will
fix
this problem.
-manoj
"Akhil Nagpal" <[email protected]> wrote in message
news:[email protected]..
HI,
I need MessageContext object in my application but i dont want
to
use
the Handler,As
there is AxisEngine in axis soap engine,is there any similarimplementation in
weblogic.
AxisEngine.getCurrentMessageContext() we can get the MessageContextwhat
about
in weblogic..any body any idea???
Regards,
Akhil Nagpal

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Re: Applet can't get an InitialContext in sp8 5.1

Here's the latest on this issue...
CASE_ID_NUM: 212375
I had a talk with one of our engineer here, he said the patch that was given
earlier, works for un secure protocols(http,t3). For secure protocols
already two cases are field(CR42423,CR42598). I will let you know once i had
feedback from engg team.
"Joe Herbers" <[email protected]> wrote in message
news:[email protected]...
Well, we thought the patch on the service pack fixed things, and it sort of
does, but not completely. I sent the following to BEA support a week and a
half ago, but so far I've gotten no response on this. Anyone else encounter
this?
Please reopen case 212375. The patch provided (CR041497) fixes the initial
problem we and others saw. However, the way the fix is implemented does not
seem to be completely correct. When we try with other configurations, such
as SSL, things don't completely work. Someone looked at a decompiled
version of the patched Handler.class and it seems to be catching the
exception as expected, but the catch is "outside" the code that still
needs to be executed in order for everything to work as desired.
We think that our prior workaround (reverting back to the version of the
Handler.class that exists in the original 5.1 install and not using the one
in sp8 or this patch) will continue to work for us, but that is not a
solution that we should go to production with. Please correct the patch.
"Joe Herbers" <[email protected]> wrote in message
news:<[email protected]>...
FYI: This was a weblogic bug (case 212375) in sp8 that is fixed by patch
CR041497.
"Sudheendra Galgali" <[email protected]> wrote in message
news:[email protected]...
Hi,
I have a simple applet that tries to create a context to the WL server. I am
currently trying out WL 5.1, service pack 8 on Windows NT 4.0/service pack 5
using JDK 1.3 and the 1.3.0.01 plugin on the client. I am attaching the
applet source code and the weblogic.policy file with this post.
When I try to create the context from the applet, I get the following
exception. I have tried playing with the weblogic.policy file but to no
avail. Can anybody help? The same code works when the server is run with WL
4.5.1 or 4.5.2.
java.lang.ExceptionInInitializerError: java.security.AccessControlException:
access denied (java.util.PropertyPermission * read,write)
at java.security.AccessControlContext.checkPermission(Unknown Source)
at java.security.AccessController.checkPermission(Unknown Source)
at java.lang.SecurityManager.checkPermission(Unknown Source)
at java.lang.SecurityManager.checkPropertiesAccess(Unknown Source)
at java.lang.System.getProperties(Unknown Source)
at weblogic.net.http.Handler.init(Handler.java:43)
at
weblogic.socket.JVMSocketHTTPClient.<clinit>(JVMSocketHTTPClient.java:26)
at weblogic.socket.JVMSocketManager.create(JVMSocketManager.java:308)
at
weblogic.rjvm.ConnectionManager.findOrCreateSocket(ConnectionManager.java:93
5)
at weblogic.rjvm.ConnectionManager.bootstrap(ConnectionManager.java:339)
at weblogic.rjvm.ConnectionManager.bootstrap(ConnectionManager.java:306)
at
weblogic.rjvm.RJVMManager.findOrCreateRemoteInternal(RJVMManager.java:252)
at weblogic.rjvm.RJVMManager.findOrCreate(RJVMManager.java:223)
at weblogic.rjvm.RJVMFinder.findOrCreateRemoteServer(RJVMFinder.java:186)
at weblogic.rjvm.RJVMFinder.findOrCreate(RJVMFinder.java:155)
at weblogic.rjvm.ServerURL.findOrCreateRJVM(ServerURL.java:200)
at
weblogic.jndi.WLInitialContextFactoryDelegate.getInitialContext(WLInitialCon
textFactoryDelegate.java:195)
at
weblogic.jndi.WLInitialContextFactoryDelegate.getInitialContext(WLInitialCon
textFactoryDelegate.java:148)
at
weblogic.jndi.WLInitialContextFactory.getInitialContext(WLInitialContextFact
ory.java:123)
at javax.naming.spi.NamingManager.getInitialContext(Unknown Source)
at javax.naming.InitialContext.getDefaultInitCtx(Unknown Source)
at javax.naming.InitialContext.init(Unknown Source)
at javax.naming.InitialContext.<init>(Unknown Source)
at Applet1.getInitialContext(Applet1.java:80)
at Applet1.init(Applet1.java:50)
at sun.applet.AppletPanel.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Any help would be appreciated. Thanks in advance.

A further update on this: this patch fixes https for applets in sp8/9.
However, it doesn't work with proxy servers with https (which used to work -
http with proxy servers does still work). We've reported this to BEA and
they are investigating...
"Joe Herbers" <[email protected]> wrote in message
news:[email protected]...
There is now also a patch for this that makes SSL work:
cr042423_rel510sp81.jar Not sure if this patch works with sp9. The
original problem is fixed in sp9, but I don't think the SSL part is.
"Joe Herbers" <[email protected]> wrote in message
news:[email protected]...
Here's the latest on this issue...
CASE_ID_NUM: 212375
I had a talk with one of our engineer here, he said the patch that was given
earlier, works for un secure protocols(http,t3). For secure protocols
already two cases are field(CR42423,CR42598). I will let you know once i had
feedback from engg team.
"Joe Herbers" <[email protected]> wrote in message
news:[email protected]...
Well, we thought the patch on the service pack fixed things, and it sort of
does, but not completely. I sent the following to BEA support a week and a
half ago, but so far I've gotten no response on this. Anyone else encounter
this?
Please reopen case 212375. The patch provided (CR041497) fixes the initial
problem we and others saw. However, the way the fix is implemented does not
seem to be completely correct. When we try with other configurations, such
as SSL, things don't completely work. Someone looked at a decompiled
version of the patched Handler.class and it seems to be catching the
exception as expected, but the catch is "outside" the code that still
needs to be executed in order for everything to work as desired.
We think that our prior workaround (reverting back to the version of the
Handler.class that exists in the original 5.1 install and not using the one
in sp8 or this patch) will continue to work for us, but that is not a
solution that we should go to production with. Please correct the patch.
"Joe Herbers" <[email protected]> wrote in message
news:<[email protected]>...
FYI: This was a weblogic bug (case 212375) in sp8 that is fixed by patch
CR041497.
"Sudheendra Galgali" <[email protected]> wrote in message
news:[email protected]...
Hi,
I have a simple applet that tries to create a context to the WL server. I am
currently trying out WL 5.1, service pack 8 on Windows NT 4.0/service pack 5
using JDK 1.3 and the 1.3.0.01 plugin on the client. I am attaching the
applet source code and the weblogic.policy file with this post.
When I try to create the context from the applet, I get the following
exception. I have tried playing with the weblogic.policy file but to no
avail. Can anybody help? The same code works when the server is run with WL
4.5.1 or 4.5.2.
java.lang.ExceptionInInitializerError: java.security.AccessControlException:
access denied (java.util.PropertyPermission * read,write)
at java.security.AccessControlContext.checkPermission(Unknown Source)
at java.security.AccessController.checkPermission(Unknown Source)
at java.lang.SecurityManager.checkPermission(Unknown Source)
at java.lang.SecurityManager.checkPropertiesAccess(Unknown Source)
at java.lang.System.getProperties(Unknown Source)
at weblogic.net.http.Handler.init(Handler.java:43)
at
weblogic.socket.JVMSocketHTTPClient.<clinit>(JVMSocketHTTPClient.java:26)
at weblogic.socket.JVMSocketManager.create(JVMSocketManager.java:308)
at
weblogic.rjvm.ConnectionManager.findOrCreateSocket(ConnectionManager.java:93
5)
at weblogic.rjvm.ConnectionManager.bootstrap(ConnectionManager.java:339)
at weblogic.rjvm.ConnectionManager.bootstrap(ConnectionManager.java:306)
at
weblogic.rjvm.RJVMManager.findOrCreateRemoteInternal(RJVMManager.java:252)
at weblogic.rjvm.RJVMManager.findOrCreate(RJVMManager.java:223)
at weblogic.rjvm.RJVMFinder.findOrCreateRemoteServer(RJVMFinder.java:186)
at weblogic.rjvm.RJVMFinder.findOrCreate(RJVMFinder.java:155)
at weblogic.rjvm.ServerURL.findOrCreateRJVM(ServerURL.java:200)
at
weblogic.jndi.WLInitialContextFactoryDelegate.getInitialContext(WLInitialCon
textFactoryDelegate.java:195)
at
weblogic.jndi.WLInitialContextFactoryDelegate.getInitialContext(WLInitialCon
textFactoryDelegate.java:148)
at
weblogic.jndi.WLInitialContextFactory.getInitialContext(WLInitialContextFact
ory.java:123)
at javax.naming.spi.NamingManager.getInitialContext(Unknown Source)
at javax.naming.InitialContext.getDefaultInitCtx(Unknown Source)
at javax.naming.InitialContext.init(Unknown Source)
at javax.naming.InitialContext.<init>(Unknown Source)
at Applet1.getInitialContext(Applet1.java:80)
at Applet1.init(Applet1.java:50)
at sun.applet.AppletPanel.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Any help would be appreciated. Thanks in advance.

Applet can't get an InitialContext in sp8 5.1

Well, we thought the patch on the service pack fixed things, and it sort of
does, but not completely. I sent the following to BEA support a week and a
half ago, but so far I've gotten no response on this. Anyone else encounter
this?
Please reopen case 212375. The patch provided (CR041497) fixes the initial
problem we and others saw. However, the way the fix is implemented does not
seem to be completely correct. When we try with other configurations, such
as SSL, things don't completely work. Someone looked at a decompiled
version of the patched Handler.class and it seems to be catching the
exception as expected, but the catch is "outside" the code that still
needs to be executed in order for everything to work as desired.
We think that our prior workaround (reverting back to the version of the
Handler.class that exists in the original 5.1 install and not using the one
in sp8 or this patch) will continue to work for us, but that is not a
solution that we should go to production with. Please correct the patch.
"Joe Herbers" <[email protected]> wrote in message
news:<[email protected]>...
FYI: This was a weblogic bug (case 212375) in sp8 that is fixed by patch
CR041497.
"Sudheendra Galgali" <[email protected]> wrote in message
news:[email protected]...
Hi,
I have a simple applet that tries to create a context to the WL server. I am
currently trying out WL 5.1, service pack 8 on Windows NT 4.0/service pack 5
using JDK 1.3 and the 1.3.0.01 plugin on the client. I am attaching the
applet source code and the weblogic.policy file with this post.
When I try to create the context from the applet, I get the following
exception. I have tried playing with the weblogic.policy file but to no
avail. Can anybody help? The same code works when the server is run with WL
4.5.1 or 4.5.2.
java.lang.ExceptionInInitializerError: java.security.AccessControlException:
access denied (java.util.PropertyPermission * read,write)
at java.security.AccessControlContext.checkPermission(Unknown Source)
at java.security.AccessController.checkPermission(Unknown Source)
at java.lang.SecurityManager.checkPermission(Unknown Source)
at java.lang.SecurityManager.checkPropertiesAccess(Unknown Source)
at java.lang.System.getProperties(Unknown Source)
at weblogic.net.http.Handler.init(Handler.java:43)
at
weblogic.socket.JVMSocketHTTPClient.<clinit>(JVMSocketHTTPClient.java:26)
at weblogic.socket.JVMSocketManager.create(JVMSocketManager.java:308)
at
weblogic.rjvm.ConnectionManager.findOrCreateSocket(ConnectionManager.java:93
5)
at weblogic.rjvm.ConnectionManager.bootstrap(ConnectionManager.java:339)
at weblogic.rjvm.ConnectionManager.bootstrap(ConnectionManager.java:306)
at
weblogic.rjvm.RJVMManager.findOrCreateRemoteInternal(RJVMManager.java:252)
at weblogic.rjvm.RJVMManager.findOrCreate(RJVMManager.java:223)
at weblogic.rjvm.RJVMFinder.findOrCreateRemoteServer(RJVMFinder.java:186)
at weblogic.rjvm.RJVMFinder.findOrCreate(RJVMFinder.java:155)
at weblogic.rjvm.ServerURL.findOrCreateRJVM(ServerURL.java:200)
at
weblogic.jndi.WLInitialContextFactoryDelegate.getInitialContext(WLInitialCon
textFactoryDelegate.java:195)
at
weblogic.jndi.WLInitialContextFactoryDelegate.getInitialContext(WLInitialCon
textFactoryDelegate.java:148)
at
weblogic.jndi.WLInitialContextFactory.getInitialContext(WLInitialContextFact
ory.java:123)
at javax.naming.spi.NamingManager.getInitialContext(Unknown Source)
at javax.naming.InitialContext.getDefaultInitCtx(Unknown Source)
at javax.naming.InitialContext.init(Unknown Source)
at javax.naming.InitialContext.<init>(Unknown Source)
at Applet1.getInitialContext(Applet1.java:80)
at Applet1.init(Applet1.java:50)
at sun.applet.AppletPanel.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Any help would be appreciated. Thanks in advance.

Well, we thought the patch on the service pack fixed things, and it sort of
does, but not completely. I sent the following to BEA support a week and a
half ago, but so far I've gotten no response on this. Anyone else encounter
this?
Please reopen case 212375. The patch provided (CR041497) fixes the initial
problem we and others saw. However, the way the fix is implemented does not
seem to be completely correct. When we try with other configurations, such
as SSL, things don't completely work. Someone looked at a decompiled
version of the patched Handler.class and it seems to be catching the
exception as expected, but the catch is "outside" the code that still
needs to be executed in order for everything to work as desired.
We think that our prior workaround (reverting back to the version of the
Handler.class that exists in the original 5.1 install and not using the one
in sp8 or this patch) will continue to work for us, but that is not a
solution that we should go to production with. Please correct the patch.
"Joe Herbers" <[email protected]> wrote in message
news:<[email protected]>...
FYI: This was a weblogic bug (case 212375) in sp8 that is fixed by patch
CR041497.
"Sudheendra Galgali" <[email protected]> wrote in message
news:[email protected]...
Hi,
I have a simple applet that tries to create a context to the WL server. I am
currently trying out WL 5.1, service pack 8 on Windows NT 4.0/service pack 5
using JDK 1.3 and the 1.3.0.01 plugin on the client. I am attaching the
applet source code and the weblogic.policy file with this post.
When I try to create the context from the applet, I get the following
exception. I have tried playing with the weblogic.policy file but to no
avail. Can anybody help? The same code works when the server is run with WL
4.5.1 or 4.5.2.
java.lang.ExceptionInInitializerError: java.security.AccessControlException:
access denied (java.util.PropertyPermission * read,write)
at java.security.AccessControlContext.checkPermission(Unknown Source)
at java.security.AccessController.checkPermission(Unknown Source)
at java.lang.SecurityManager.checkPermission(Unknown Source)
at java.lang.SecurityManager.checkPropertiesAccess(Unknown Source)
at java.lang.System.getProperties(Unknown Source)
at weblogic.net.http.Handler.init(Handler.java:43)
at
weblogic.socket.JVMSocketHTTPClient.<clinit>(JVMSocketHTTPClient.java:26)
at weblogic.socket.JVMSocketManager.create(JVMSocketManager.java:308)
at
weblogic.rjvm.ConnectionManager.findOrCreateSocket(ConnectionManager.java:93
5)
at weblogic.rjvm.ConnectionManager.bootstrap(ConnectionManager.java:339)
at weblogic.rjvm.ConnectionManager.bootstrap(ConnectionManager.java:306)
at
weblogic.rjvm.RJVMManager.findOrCreateRemoteInternal(RJVMManager.java:252)
at weblogic.rjvm.RJVMManager.findOrCreate(RJVMManager.java:223)
at weblogic.rjvm.RJVMFinder.findOrCreateRemoteServer(RJVMFinder.java:186)
at weblogic.rjvm.RJVMFinder.findOrCreate(RJVMFinder.java:155)
at weblogic.rjvm.ServerURL.findOrCreateRJVM(ServerURL.java:200)
at
weblogic.jndi.WLInitialContextFactoryDelegate.getInitialContext(WLInitialCon
textFactoryDelegate.java:195)
at
weblogic.jndi.WLInitialContextFactoryDelegate.getInitialContext(WLInitialCon
textFactoryDelegate.java:148)
at
weblogic.jndi.WLInitialContextFactory.getInitialContext(WLInitialContextFact
ory.java:123)
at javax.naming.spi.NamingManager.getInitialContext(Unknown Source)
at javax.naming.InitialContext.getDefaultInitCtx(Unknown Source)
at javax.naming.InitialContext.init(Unknown Source)
at javax.naming.InitialContext.<init>(Unknown Source)
at Applet1.getInitialContext(Applet1.java:80)
at Applet1.init(Applet1.java:50)
at sun.applet.AppletPanel.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Any help would be appreciated. Thanks in advance.

Why can't get the object "out" in this way?

We use "PrintWriter out=response.getWriter()"to get a "out" object in Servlet and output text to webbrowser with it.But I think the PrintWriter is a class and Why can't I get the object "out" use this way:"PrintWriter out=new PrintWriter()"?I think the later is easier to understand.Anyone can help me?

I check the Servlet API.The PrintWriter has a constructor with a abstract object Writer as it's parameter.I couldn't create the Writer object so I can't create the out object.Why it's constructor is protected by java?

Can a JPanel object replace an applet?

I know that I can insert an applet in an HTML page, and JavaScript can communicate with the applet. However, is it possible to do the same whith a JPanel object?
Excuse the basic question.

A panel is a light weight component, meaning it needs a top level container to hold it. An applet or frame is a top level (heavy weight) component, meaning it is it's own container. An applet can be nothing more than a thin wrapper around a panel which holds all of the other components. That's actually a good way to design it, since it lets you switch from applet to frame relatively easily, etc.

I like to play cards on Yahoo. I can get into the program, but the room page, applet won't load.

I can get into Yahoo, and the 'gin' site, but when I try to go to a room to play, the page won't load. It's just blank. I've tried all the things, like emptying cache, and it doesn't help.

I suspect the software was originally designed for PPC based Macs and is simply not designed to run on 10.6.7. I would recommend contacting the manufacturer and asking the correct way to uninstall they're application.
After uninstalling I would run Repair Disk Permissions in Disk Utility and if necessary do a SMC reset using the following instructions:
SMC RESET
• Shut down the computer.
• Unplug the computer's power cord and all peripherals.
• Press and hold the power button for 5 seconds.
• Release the power button.
• Attach the computers power cable.
• Press the power button to turn on the computer.
PRAM RESET
• Shut down the computer.
• Locate the following keys on the keyboard: Command, Option, P, and R. You will need to hold these keys down simultaneously in step 4.
• Turn on the computer.
• Press and hold the Command-Option-P-R keys. You must press this key combination before the gray screen appears.
Hold the keys down until the computer restarts and you hear the startup sound for the second time.
Release the keys.
Roger

Does anyone know how to set policy file, so applet can connect other host?

I have an signed applet, it may connect to other host.
The applet should display a HTML pages, which may contains image tag points to a picture stored anywhere. I use a JTextPane to display this HTML page, but when it is loaded. a error occurs.
java.lang.SecurityException
at java.lang.SecurityManager.checkPermission(Unknown Source)
at java.lang.SecurityManager.checkConnect(Unknown Source)
at sun.awt.image.URLImageSource.checkSecurity(Unknown Source)
at sun.awt.image.ImageRepresentation.imageComplete(Unknown Source)
at sun.awt.image.InputStreamImageSource.errorConsumer(Unknown Source)
at sun.awt.image.InputStreamImageSource.setDecoder(Unknown Source)
at sun.awt.image.InputStreamImageSource.doFetch(Unknown Source)
at sun.awt.image.ImageFetcher.fetchloop(Unknown Source)
at sun.awt.image.ImageFetcher.run(Unknown Source)
I have those kind of error (connection refused) before I signed my applet and write policy file to granr socketpermission to the codebase of my class files. But this error still occurs. I suppose it is because the sun.awt.image.* is Java standard class, so my policy file has no effect on them. But how can I make it works?

you need to install the jre, and place the win32.dll at JavaSoft\JRE\1.3.1_06\bin, that properties file place at JavaSoft\JRE\1.3.1_06\lib, comm.jar at JavaSoft\JRE\1.3.1_06\lib\ext\
and in ur code try to use it to open ur com port
public String test() {
String drivername = "com.sun.comm.Win32Driver";
try
CommDriver driver = (CommDriver) Class.forName(drivername).newInstance(); driver.initialize();
catch (Throwable th)
{* Discard it */}
drivername = "javax.comm.*";
try
CommDriver driver = (CommDriver) Class.forName(drivername).newInstance(); driver.initialize();
catch (Throwable th)
{* Discard it */}
portList = CommPortIdentifier.getPortIdentifiers();
while (portList.hasMoreElements()) {
portId = (CommPortIdentifier) portList.nextElement();
if (portId.getPortType() == CommPortIdentifier.PORT_SERIAL) {
if (portId.getName().equals("COM2")) {
//if (portId.getName().equals("/dev/term/a")) {
try {
serialPort = (SerialPort)
portId.open("SimpleWriteApp", 2000);
} catch (PortInUseException e) {}
try {
outputStream = serialPort.getOutputStream();
} catch (IOException e) {}
try {
serialPort.setSerialPortParams(9600,
SerialPort.DATABITS_8,
SerialPort.STOPBITS_1,
SerialPort.PARITY_NONE);
} catch (UnsupportedCommOperationException e) {}
int i=0;
while(true)
try {
messageString="hi";
System.out.println(i++);
outputStream.write(messageString.getBytes());
} catch (IOException e)
System.out.println(e);
messageString=String.valueOf(e);
return messageString;
and yet u need to signed the applet
1. Compile the applet
2. Create a JAR file
3. Generate Keys
4. Sign the JAR file
5. Export the Public Key Certificate
6. Import the Certificate as a Trusted Certificate
7. Create the policy file
8. Run the applet
Susan
Susan bundles the applet executable in a JAR file, signs the JAR file, and exports the public key certificate.
1. Compile the Applet
In her working directory, Susan uses the javac command to compile the SignedAppletDemo.java class. The output from the javac command is the SignedAppletDemo.class.
javac SignedAppletDemo.java
2. Make a JAR File
Susan then makes the compiled SignedAppletDemo.class file into a JAR file. The -cvf option to the jar command creates a new archive (c), using verbose mode (v), and specifies the archive file name (f). The archive file name is SignedApplet.jar.
jar cvf SignedApplet.jar SignedAppletDemo.class
3. Generate Keys
Susan creates a keystore database named susanstore that has an entry for a newly generated public and private key pair with the public key in a certificate. A JAR file is signed with the private key of the creator of the JAR file and the signature is verified by the recipient of the JAR file with the public key in the pair. The certificate is a statement from the owner of the private key that the public key in the pair has a particular value so the person using the public key can be assured the public key is authentic. Public and private keys must already exist in the keystore database before jarsigner can be used to sign or verify the signature on a JAR file.
In her working directory, Susan creates a keystore database and generates the keys:
keytool -genkey -alias signFiles -keystore susanstore -keypass kpi135 -dname "cn=jones" -storepass ab987c
This keytool -genkey command invocation generates a key pair that is identified by the alias signFiles. Subsequent keytool command invocations use this alias and the key password (-keypass kpi135) to access the private key in the generated pair.
The generated key pair is stored in a keystore database called susanstore (-keystore susanstore) in the current directory, and accessed with the susanstore password (-storepass ab987c).
The -dname "cn=jones" option specifies an X.500 Distinguished Name with a commonName (cn) value. X.500 Distinguished Names identify entities for X.509 certificates.
You can view all keytool options and parameters by typing:
keytool -help
4. Sign the JAR File
JAR Signer is a command line tool for signing and verifying the signature on JAR files. In her working directory, Susan uses jarsigner to make a signed copy of the SignedApplet.jar file.
jarsigner -keystore susanstore -storepass ab987c -keypass kpi135 -signedjar SSignedApplet.jar SignedApplet.jar signFiles
The -storepass ab987c and -keystore susanstore options specify the keystore database and password where the private key for signing the JAR file is stored. The -keypass kpi135 option is the password to the private key, SSignedApplet.jar is the name of the signed JAR file, and signFiles is the alias to the private key. jarsigner extracts the certificate from the keystore whose entry is signFiles and attaches it to the generated signature of the signed JAR file.
5. Export the Public Key Certificate
The public key certificate is sent with the JAR file to the whoever is going to use the applet. That person uses the certificate to authenticate the signature on the JAR file. To send a certificate, you have to first export it.
The -storepass ab987c and -keystore susanstore options specify the keystore database and password where the private key for signing the JAR file is stored. The -keypass kpi135 option is the password to the private key, SSignedApplet.jar is the name of the signed JAR file, and signFiles is the alias to the private key. jarsigner extracts the certificate from the keystore whose entry is signFiles and attaches it to the generated signature of the signed JAR file.
5: Export the Public Key Certificate
The public key certificate is sent with the JAR file to the whoever is going to use the applet. That person uses the certificate to authenticate the signature on the JAR file. To send a certificate, you have to first export it.
In her working directory, Susan uses keytool to copy the certificate from susanstore to a file named SusanJones.cer as follows:
keytool -export -keystore susanstore -storepass ab987c -alias signFiles -file SusanJones.cer
Ray
Ray receives the JAR file from Susan, imports the certificate, creates a policy file granting the applet access, and runs the applet.
6. Import Certificate as a Trusted Certificate
Ray has received SSignedApplet.jar and SusanJones.cer from Susan. He puts them in his home directory. Ray must now create a keystore database (raystore) and import the certificate into it. Ray uses keytool in his home directory /home/ray to import the certificate:
keytool -import -alias susan -file SusanJones.cer -keystore raystore -storepass abcdefgh
7. Create the Policy File
The policy file grants the SSignedApplet.jar file signed by the alias susan permission to create newfile (and no other file) in the user's home directory.
Ray creates the policy file in his home directory using either policytool or an ASCII editor.
keystore "/home/ray/raystore";
// A sample policy file that lets a JavaTM program
// create newfile in user's home directory
// Satya N Dodda
grant SignedBy "susan"
permission java.security.AllPermission;
8. Run the Applet in Applet Viewer
Applet Viewer connects to the HTML documents and resources specified in the call to appletviewer, and displays the applet in its own window. To run the example, Ray copies the signed JAR file and HTML file to /home/aURL/public_html and invokes Applet viewer from his home directory as follows:
Html code :
</body>
</html>
<OBJECT classid="clsid:8AD9C840-044E-11D1-B3E9-00805F499D93"
width="600" height="400" align="middle"
codebase="http://java.sun.com/products/plugin/1.3/jinstall-13-win32.cab#Version=1,3,1,2">
<PARAM NAME="code" VALUE="SignedAppletDemo.class">
<PARAM NAME="archive" VALUE="SSignedApplet.jar">
<PARAM NAME="type" VALUE="application/x-java-applet;version=1.3">
</OBJECT>
</body>
</html>
appletviewer -J-Djava.security.policy=Write.jp
http://aURL.com/SignedApplet.html
Note: Type everything on one line and put a space after Write.jp
The -J-Djava.security.policy=Write.jp option tells Applet Viewer to run the applet referenced in the SignedApplet.html file with the Write.jp policy file.
Note: The Policy file can be stored on a server and specified in the appletviewer invocation as a URL.
9. Run the Applet in Browser
Download JRE 1.3 from Javasoft
good luck! [email protected]
i already give u many tips, i use 2 weeks to try this to success, hopw that u understand that, a result of success is not important, the process of how to get things done is most usefull!

Applet's Param Tag

What are uses of Param tag?
Can I get some demo programmes which uses param tag?

<OBJECT
classid="clsid:8AD9C840-044E-11D1-B3E9-00805F499D93"
width="500" height="350" align="baseline"
codebase="http://java.sun.com/products/plugin/1.2.2/jinstall-1_2_2-win.cab#Version=1,2,2,0">
<PARAM NAME="code" VALUE="psw.applets.um.UserManager.class">
<PARAM NAME="archive" VALUE="CriJacsUm.jar">
<PARAM NAME="codebase" VALUE=".">
<PARAM NAME="type" VALUE="application/x-java-applet;version=1.2.2">
<PARAM NAME="ServerIP" VALUE="<%=ComDef.ServerIP%>">
<COMMENT>
<EMBED type="application/x-java-applet;version=1.2.2"
width="500" height="350" align="baseline"
code="UserManager.class" archive="CriJacsUm.jar" codebase="."
pluginspage="http://java.sun.com/products/plugin/1.2/plugin-install.html">
<NOEMBED>
</COMMENT></NOEMBED>
</EMBED>
</OBJECT>

Applet can get arbitrary objects as a param tag?

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