Applets in IE anddatabase connection

hello all,
I have two problems regarding applets
1).I have an applet that is trying to make a connection to a different host.But while it does it gives me a security exception saying access denied.
2).I have compiled my applet as
javac -target 1.1 JVoucher1.java
because i am using J2re1.4.0 .It compiles but when i try to run from the browser by disabling J2re1.4.0 in the browser properties it fails to come up.It comes otherwsie if i enable j2re1.4.0
Suggest and help.
regards,
nikhil

bumpert
Thanks.Are you sure that i have to get it signed. There is no other solution you mean.
About he second problem i got it working using the Object tag that looks like this:
<OBJECT classid="clsid:8AD9C840-044E-11D1-B3E9-00805F499D93"
HEIGHT="610" WIDTH="975" ALIGN="bottom" ARCHIVE="classes12.jar,classes111.jar" codebase="http://apps1.cbfamilies.org/test/j2re-1_4_0-win.exe#Version=1,4,0,0" >
<PARAM NAME="type" VALUE="application/x-java-applet;version=1.4">
<PARAM NAME="code" VALUE="JVoucher1.class">
<param name=workerTextField value= nikhil >
No JDK 1.4 support for APPLET!!
</OBJECT>
I am installing Java plugin to be compatibale with 1.2 .This works fine.
I thought we can also do through javac -target 1.1 JVoucher1.java which
when compiled alllows the applet class to be compatible with the 1.1 of Microsoft VMin IE.
Any suggection from the forum or Sun guys.
nikhil

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baftos wrote:
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;o)
V.V.
PS: remember me?

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at java.awt.Component.dispatchEventImpl(Component.java:4031)
at java.awt.Container.dispatchEventImpl(Container.java:2024)
at java.awt.Component.dispatchEvent(Component.java:3803)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:463)
at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:234)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:163)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:157)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:149)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:110)
this error comes when i run every jdbc applet.
can anyone suggest any solution.

Mintu,
You said:
i do have to access to jdbc driversNo, you don't. Otherwise you wouldn't be getting that error message.
Good Luck,
Avi.

How to run an applet with JDBC connectivity on a web browser

I've created an Applet in Java with SQL connectivity...i.e. it retrieves certain data from a table in SQL and puts in the TextField.....
Now, the problem is that this Applet works in NETBEANS....but fails to work when I use a web-browser..or the "appletviewer" command....
It says that it doesn't have permission to access local files....On Research, i've found that it is somethin' related to the concept of "Signed Applets", "Permissions" & "Security Policies" in java which doesn't allow any applet (without Certificate) to access Local Files.....
Can Somebody please tell how to overcome this problem.....?

I'm going to be blunt with you. You are most likely going to have to redesign your application from scratch. And if it turns out you don't have to then you should anyway because it's a bad idea and fraught with peril.
Anyway here the major touchpoints on this discussion. You can be the judge of how these various points apply to you.
- Applets are restricted. - Yes Applets have a number of security restrictions on what they can or cannot do. This is designed to protect users from malicious applets. By signing your applet you can request permission from the user to do certain activities that are otherwise restricted. But not all.
- If you are using the JDBC-ODBC bridge then you need a different driver. If you sign your applet it might work in some limited scenarios but it will be hairy and is discouraged.
- If you are using Access or another file based database (CSV Excel etc) then you are doomed. You'll have to get yourself a different database. A non file based one. It doesn't matter if you sign your applet or not. You're still doomed.
- If you are trying to connect to a database server that is not at the same physical address as your web server you are doomed. Signing the applet will not help
- Connecting directly to a database from an applet is extremely risky business. Starting with now anyone can steal your username and password for your database quite easily.
What you should do in the redesign is put all the database accessing code in a Servlet. This Servlet does not have to be Java, it could be PHP, Perl, ASP, etc. It doesn't matter. Just put it on the server side. Then have your applet connect to this code via a webservice to do what is required.

How to get database connection in applet

Hi,
I am trying to prepare database connection in applet. After preparing connection with database it'll read same values from table.
At the time of development it works fine. I have used esclipse IDE for coding and testing.
But when I try to call that applet from browser. It is giving ClassNotFound exception.
Does anybody know How to get database connection in applet ?
Please help me if anybody know solution for this.
Thanks,
Rajesh

As per my knowledge is conserned
1 u can get the database connection in a jsp page and u send the result set as param to the applet and u can use retrieved values as if they were of the same applet if u r interested i can send the db connetion coding for jsp my id [email protected]

Applets in IE anddatabase connection

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