java database applet connectivity

i want to use a java applet/servlet for user aunthentication for an online application that i'm developing.the applet connects to an MS Access database So i want the applet to verify the details entered by the user ny comparing with some values st
thembieAsked:
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heyhey_Commented:
what's the problem ?
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thembieAuthor Commented:
no the problem is i'm failing to connect the applet to the database and i'm getiing datasource not found error.i've set up the drivers correctly but still getting the same error
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heyhey_Commented:
post the full exception stacktrace.
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OviCommented:
"the problem is i'm failing to connect the applet to the database and i'm getiing datasource not found
error.i've set up the drivers correctly but still getting the same error" - to what datasource are you connecting? Is local datasource accesed with odbc or remote server? Do you have raised sequrity exception or db connect exception?
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shyamkumarreddyCommented:
Thembie.
If you are trying to connect to database from applet. Then you need to been signed applet or the database and web server should be in the same database.
Datasource is the Client dependent stuff. I don't think it is possible to connect applet using DSN. DSN is client side piece of information. So u need to use to use Type3 or Type 4 drivers.
Type 1 and Type 2 are client dependent.

Shyam
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pellepCommented:
Access database is a 'desktop' database, ie not distributed. accessing an access db over a network is done thru the windows file-sharing system. an applet trying to use an access db is thus subject to two levels of security checks.
1) Applet security (has to be signed to access filesystem)
2) Windows security (machine running applet has to have access to machine hosting access db thru windows filesharing)

I'd suggest that if you intend your applet to acces your db you choose a true RDBMS (where the client can connect to the db thru TCP/IP directly via an appropriate JDBC driver), like Oracle or SQL-server. If you are not keen on paying there are free alternatives like MySQL or Postgress.

If you are forced to use an Access db, i'd try and use servlets for all your db-dependant logic, since you can host both the db and the servlet engine on the same machine, thereby removing the depenancy on remote connectability.

PAP
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