Applet database connection : access denied

Connections to my MySql database can only made from applications running on the host. So when I log on to my domain and run a Java application from the console, I can talk to the database. There's no problem with php either. But when I upload an applet, I get an access denied.
Anyone knows how to get around this problem?

Change MySQL so that it will accept connections from users running on whatever system the applet is running on.

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Signed Applet Database Connection..

it works in my Test HTML..
<html>
<head>
 <meta http-equiv="Content-Type" content="text/html;charset=utf-8" >
 <title>Java Applet</title>
</head>
<body>
 Applet Test
 
 <applet code="Main.class" archive="flowchart.jar" width="90%" height="90%" alt="Sorry, you need Java to run this Applet">
 <param name="Username" value="root" />
 <param name="DatabaseType" value="MySQL" />
 <param name="Database" value="OQMcontrolec30_validatie_mysql" />
 <param name="Server" value="192.168.5.4" />
 <param name="ProcesID" value="72" />
 </applet>
 
</body>
</html>it doesn't work on the server..
<body BOTTOMMARGIN=0 LEFTMARGIN=0 MARGINHEIGHT=0 MARGINWIDTH=0 SCROLL=no>
<APPLET code="Main.class" codebase="./" height="100%" width="100%" archive="flowchart.jar">
<param name="Username" value="root" />
<param name="DatabaseType" value="MySQL" />
<param name="Database" value="OQMcontrolec30_validatie_mysql" />
<param name="Server" value="192.168.5.4" />
<param name="ProcesID" value="<?=$_GET['id']?>" />
 
Sorry, your browser doesn't support Java.
 
</APPLET>I get this for an error in Java Console (using firefox)
jdbc:mysql://192.168.5.4:3306/OQMcontrolec30_validatie_mysql
com.mysql.jdbc.CommunicationsException: Communications link failure due to underlying exception:
** BEGIN NESTED EXCEPTION **
java.net.SocketException
MESSAGE: java.security.AccessControlException: access denied (java.net.SocketPermission 192.168.5.4:3306 connect,resolve)
STACKTRACE:
java.net.SocketException: java.security.AccessControlException: access denied (java.net.SocketPermission 192.168.5.4:3306 connect,resolve)
 at com.mysql.jdbc.StandardSocketFactory.connect(StandardSocketFactory.java:156)
 at com.mysql.jdbc.MysqlIO.<init>(MysqlIO.java:277)
 at com.mysql.jdbc.Connection.createNewIO(Connection.java:2668)
 at com.mysql.jdbc.Connection.<init>(Connection.java:1531)
 at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:266)
 at java.sql.DriverManager.getConnection(DriverManager.java:582)
 at java.sql.DriverManager.getConnection(DriverManager.java:185)
 at Main.init(Main.java:200)
 at sun.applet.AppletPanel.run(AppletPanel.java:419)
 at java.lang.Thread.run(Thread.java:619)
** END NESTED EXCEPTION **
Last packet sent to the server was 157 ms ago.
 at com.mysql.jdbc.Connection.createNewIO(Connection.java:2741)
 at com.mysql.jdbc.Connection.<init>(Connection.java:1531)
 at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:266)
 at java.sql.DriverManager.getConnection(DriverManager.java:582)
 at java.sql.DriverManager.getConnection(DriverManager.java:185)
 at Main.init(Main.java:200)
 at sun.applet.AppletPanel.run(AppletPanel.java:419)
 at java.lang.Thread.run(Thread.java:619)and that sort of repeats itself on every query I do..
now I've read around the forum that when calling an applet from javascript it isn't trusted.. even when it's signed
this here is called with PHP.. and I think it isn't trusted either
how do I make it trusted?
Edited by: Nizzle on Nov 19, 2007 10:28 AM

sabre150 wrote:
Nizzle wrote:
Yes =)
I'm pretty sure it has something to do with the applet being "Self-Signed"I don't think so. I use "Self-Signing" without problems like this.it seems that I have a .java.policy file in my userfolder..
which granted permissions for me on local applet test stuff..
so now I've removed that the signed doesn't do anything.. anywhere =(
I signed it like this:
keytool -genkeypair -dname "cn=TAG Software, ou=TAG Software, o=TAG Software, c=NL" -alias business -keypass w8woord135 -keystore /home/niels/TAGkeystore -storepass w8woord -validity 365
jarsigner -keystore TAGkeystore -storepass w8woord -keypass w8woord135 flowchart.jar business

Applet database connection

I've written an applet that connects to a MS Access database. This applet works fine when run in Appletviewer (with the policy file included). The problem is when I try to run it in a Browser the applet is "not initialized" Can anyone suggest a solution. The point of this applet is to be placed on a web page and it will access the database on the same server. The applet will never have to talk to the machnine it's being run on. Thanks in advance

I just checked the error message in the Java Console and I get the following message.
java.security.AccessControlException: access denied (java.lang.RuntimePermission accessClassInPackage.sun.jdbc.odbc) at java.security.AccessControlContext.checkPermission(Unknown Source)
the applet simply looks in the database and outputs some text to the browser based on what's in the database. It write nothing to the server or anywhere else. I set up the permissions via a policy file. Is there a way to allow the browser to access the policy file??
for instance in appletviewer I can provide the following
appletviewer -J-Djava.security.policy=policyfile page.htm
where policyfile is the policy file with the appropriate permissions. How can I get the webbrowser to access this file???
thanks again

Socket connection access denied

I created a class that handles all the socket level calls for my Applet class. When I'm trying to open the socket, I get an exception saying "access denied (java.net.SocketPermission 172.16.11.63:3333 connect,resolve)". When I open the socket within the Applet class, it opens fine. I would think the socket class would have permissions to the socket because it's being loaded from the same host and the same directory as the Applet. Can someone please explain this to me? Thanks.

Normally a webserver runs on port 80. If you're connecting to port 3333, then that counts for a different host.
Morten

Unable to reinstall SCVMM 2012 R2 during database migration - access denied to VMMDKM container

I'm trying to migrate my SCVMM 2012 R2 DB to a new SQL 2012 server. As per TechNet article http://technet.microsoft.com/en-us/library/dn469626.aspx,
I uninstalled VMM, which went without a problem. During the reinstall, setup fails with "Unable to create or access the Active Directory container CN=VMMDKM,CN=System,DC=feroscare,DC=local. Access is denied. Specify the distinguished name
for the container and verify that you have GenericRead|CreateChild|WriteProperty rights on the container." - as is shown in the setup log below.
I'm trying to use the same account as the service account and to connect to the database. I'm logged into the VMM server as that user account (and running setup as that account). I have verified that the account has full control over the VMMDKM container
and all descendant objects. I've also added these permissions for the VMM server's computer account, although I'm not sure that's necessary.
VMM server is running Win 2012 R2, SQL server is 2012 running on Win 2012 R2. Domain controller is running 2008 R2 with AD at the 2003 functional level.
Please can anyone please advise what to do next to troubleshoot this?
What seem to be the relevant lines from the VMM setup log:
"12:33:04:Error:SetupDKM method threw. See inner exceptions, Exception Type: System.DirectoryServices.DirectoryServicesCOMException, Exception Message: A constraint violation occurred.
12:33:04:StackTrace: at System.DirectoryServices.DirectoryEntry.CommitChanges()
at Microsoft.Incubation.Crypto.GroupKeys.ADRepository.AddAccessRule(IdentityReference identityReference, ActiveDirectoryRights rights)
at Microsoft.VirtualManager.Setup.DKMHelper.SetupDKM(String containerName, String topContainerName)
12:33:04:VMMPostinstallProcessor threw an exception: Threw Exception.Type: Microsoft.VirtualManager.Setup.Exceptions.BackEndErrorException, Exception.Message: Unable to create or access the Active Directory container CN=VMMDKM,CN=System,DC=feroscare,DC=local.
Access is denied.
Specify the distinguished name for the container and verify that you have GenericRead|CreateChild|WriteProperty rights on the container.
12:33:04:StackTrace: at Microsoft.VirtualManager.Setup.DKMHelper.SetupDKM(String containerName, String topContainerName)
at Microsoft.VirtualManager.Setup.DKMHelper.SetDKM(Boolean isDKMEnabled)
at Microsoft.VirtualManager.Setup.InstallItemCustomDelegates.PangaeaServerPostinstallProcessor()
12:33:04:InnerException.Type: System.DirectoryServices.DirectoryServicesCOMException, InnerException.Message: A constraint violation occurred.
12:33:04:InnerException.StackTrace: at System.DirectoryServices.DirectoryEntry.CommitChanges()
at Microsoft.Incubation.Crypto.GroupKeys.ADRepository.AddAccessRule(IdentityReference identityReference, ActiveDirectoryRights rights)
at Microsoft.VirtualManager.Setup.DKMHelper.SetupDKM(String containerName, String topContainerName)
12:33:04:ProcessInstalls: Running the PostProcessDelegate returned false.
12:33:04:ProcessInstalls: Running the PostProcessDelegate for PangaeaServer failed.... This is a fatal item. Setting rollback.
12:33:04:SetProgressScreen: FinishMinorStep.
12:33:04:ProcessInstalls: Rollback is set and we are not doing an uninstall so we will stop processing installs"
Thanks in advance!

Hi new_guise,
Please refer to following link regarding "Reinstalling VMM with a Retained Database" :
http://technet.microsoft.com/en-us/library/cc764334.aspx
Also please refer to following article regarding that error message ：
http://support.microsoft.com/kb/2721457
Best Regards,
Elton Ji
Please remember to mark the replies as answers if they help and unmark them if they provide no help. If you have feedback for TechNet Subscriber Support, contact [email protected] .

Applet Database Connectivity

I m trying following code to connect Database within Myapplet
but class.forName is throwing exception???
Any idea to remove this problem???
import java.applet.*;
import java.awt.*;
import java.sql.*;
public class Myapplet extends Applet {
int width, height;
Connection con;
Statement st;
ResultSet rs;
public void init() {
width = getSize().width;
height = getSize().height;
try
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
con = DriverManager.getConnection("jdbc:odbc:abc","","");
st=con.createStatement();
catch(Exception e)
//out.println("some problem");
public void paint( Graphics g )
}

You must first check that driver you are using to connect with DB is placed in your class path.
If driver is not found then Class.forName(); throws exception.

Financial Reporting 11.1.1.3 Client "Access Denied" connecting to HFM

Hi,
I have installed Financial Reporting 11.1.1.3 Client on a PC running Windows Vista 32 bit SP1. When I try to access to a report created form another PC that connects to HFM, it says "Error connectiong to server" and "Cannot connect to database "X": Access Denied". The native user is the same that created the report; on the same machine, I can succesfully access HFM applications from HFM client and Rule editor.
Any idea?
Thanks

Dear John,
How to install latest Version of Hyperion HFM
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which part i have still dowloaded.
Regards
Amit

Financial Reporting "Access Denied" to HFM reports (11.1.1.3)

Hi,
I have installed Financial Reporting 11.1.1.3 Client on a PC running Windows Vista 32 bit SP1. When I try to access to a report created form another PC that connects to HFM, it says "Error connectiong to server" and "Cannot connect to database "X": Access Denied". The native user is the same that created the report; on the same machine, I can succesfully access HFM applications from HFM client and Rule editor.
Any idea?
Thanks

Hi,
I have similar issue and cannot find an answer.
My environment is 11.1.2.1 (upgrade from 11.1.1.3)
All applications working fine (planning, essbase, hfm).
I'm unable to change database connection to hfm (db change to essbase and Plannng works). Error says that I have wrong cluster/server configuration.
Question is how this configuration should lokks like. I already tested:
1. HFMProd - this is cluster name and Server1 as a server in HFMProd cluster
2. No cluster, just Server1
3. HFMProd and Server1 in plus Server1 separately
In all cases the same message.
When I open FR studio I'm able to see reports (from workspace also).
When I try to open report I have an error due to some links to the old server ip (I guess this is taken from connection info that I can not change)
What is more I can create new Planning report in studio, but can not open through workspace.
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I want to connect an applet with an access database

I want to connect an applet with an access(*.mdb) database, how I do?
I now the jdbc odbc bridge but how work it?
Please Help me!!!!!!!!!!

If you want access database please install IDSSERVER and import j102.sql.*;
Example:
import java.awt.*;
import java.io.*;
import j102.sql.*;
public class AccessMdb extends Applets {
Connection con;
ResultSet rs;
Statement stmt;
IDSDriver drv;
String _url ="jdbc:ids://localhost:your port /conn?dsn="your database"";
// make connection to database
drv = new j102.sql.IDSDriver();
try{
con = drv.connect(_url,null);
stmt = con.createStatement();
// query database
stmt.executeQuery("your SQL statement");
}catch(Exception ex){
System.out.println(ex.getMessage());
Good luck.

Database connection an applet

Hi, I want to do an applet where I can connect to a SQL server via an ODBC. The whole conencting to the database works fine with an application, but access is denied when I use an applet ( ie. I have a separated class that do the databases connections and it failed when I use an applet).
Somebody told me that I have to create a java.policy file for users and signed the applet with .jar. but I'm not familiar with either signing a jar(I'm not familiar with the .jar at all) and I'm not familiar either with the java.policy file. Can anyone explain this to me plz?

signed the applet with .jar. but I'm not familiar with either signing a jar(I'm not familiar with the .jar at all)So...., check out the link shown below.
http://developer.java.sun.com/developer/qow/archive/167/index.jsp
;o)
V.V.
PS: remember me?

Database connection with a Java applet

I am having trouble figuring out what I am doing wrong.
I am able to connect to the remote database from inside JDeveloper 9.0.3 and execute some simple SQL statements.
The problem is when I try to run this applet on a web page to test it I get some exceptions.
with e.message()
access denied (java.util.PropertyPermission oracle.jserver.version read)
java.security.AccessControlException: access denied (java.util.PropertyPermission oracle.jserver.version read)
I know from within the IDE I assume the security settings are lax or non-exsistant.
any ideas?
Thanks,
Martin

Java applets can only access their host machine. If your database is located on a different server than the web server then you get these errors. To access a database located on a different machine you can use the so callled Applet - Servlet tunelling. You actually use a servelt as a proxy. The applet calls the servlet and the servlet accesses the database.
There is a lot of info on these issues in java.sun.com.
hope this helps!

Database Connection through Applet

Hello All,
I want to connect to Access Database through Applet. But I am getting access denied error. How to allow an Applet to connect to the database ?.
Waiting for reply.
Thanks and regards,
Sachin

I believe it's possible to change the security policy for the java plugin that runs applets, (though I haven't found an appropriate policy file). However, there seems little point in writing an applet that requires that. The whole point of applets is that anyone can run your applets over the net without any special installation. If whoever is going to run your applet has to muck about with security policy files, they'd be a lot better off just running a stand-alone GUI program.
Even if you signed the applet there would still be the problems associated with having the access file in the right place on the client machine.
In short you're falling between two stools. Either make the thing a standalone Swing program and install it alongside the database it accesses or do the database access in a web server environment and have the client side obtain the data from the database through http access.

Applet database access problems!

Hi,
I have a major problem. I'm trying to design an applet that can talk to a database server which is not the same server where the applet is hosted. I keep getting an exception like below: (note I changed my db server name)
java.sql.SQLException: Unable to connect to any hosts due to exception: java.security.AccessControlException: access denied (java.net.SocketPermission aaaa.bbbbb.net resolve)
at com.mysql.jdbc.Connection.createNewIO(Connection.
help?

Ok, I went back and re-read the answer to a similar question I asked earlier. Since I can't talk directly to the other db server, what is the work around?
Make a php page that updates the database, then call that page from within the applet?

How can i create Database Connection in Swing Applet?

A DESCRIPTION OF THE PROBLEM :
I am unable to connect to oracle database using thin driver
in Swing Applet.
ENVIRONMENT:
java version "1.3.1_02"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.3.1_02-b02)
Java HotSpot(TM) Client VM (build 1.3.1_02-b02, mixed mode)
FULL OPERATING SYSTEM VERSION : NT 4.0
Java file:-
import javax.swing.*;
import java.awt.event.*;
import java.sql.*;
import java.awt.*;
public class SwingApplet extends JApplet
 public void init(){
 public void start(){
 JTextField txf=new JTextField();
 JButton btn=new JButton("Click Me");
 btn.addActionListener(new ActionListener(){
 public void actionPerformed(ActionEvent ae){
 try{
 DriverManager.registerDriver(new
oracle.jdbc.driver.OracleDriver());
 Connection con=DriverManager.getConnection
("jdbc:oracle:thin:@orasrv:1521:oracledb","hrisadmin","hrisadmin");
 Statement st=con.createStatement();
 ResultSet rs=st.executeQuery("select * from applicant");
 }catch(Exception e){JOptionPane.showMessageDialog
(null,e.toString());}
 JOptionPane.showMessageDialog(null,"Hai Swing is cool");
 getContentPane().add(txf,BorderLayout.NORTH);
 getContentPane().add(btn,BorderLayout.CENTER);
 public void stop(){
 public void destroy(){
html file:-
<OBJECT classid="clsid:8AD9C840-044E-11D1-B3E9-00805F499D93"
 width="120" height="160" align="middle"
 codebase="http://java.sun.com/products/plugin/1.1.2/
 jinstall-12-win32.cab#Version=1,2,0,0">
 <PARAM NAME="code" VALUE="SwingApplet.class">
 <PARAM NAME="codebase" VALUE=".">
 <PARAM NAME="archive" VALUE="classes111.zip">
</OBJECT>ERROR MESSAGES/STACK TRACES THAT OCCUR :
java.security.AccessControlException:access denied(java.net.SocketPermission or
asrv resolve)

if the applet runs locally, and you want to connect to your DB locally with the applet, it won't work (except if you adjust the security settings of your browser, maybe). That's because applets don't have access to the computer they're running on (except some information), since that would mean that any applet could just access your computer, so, it's not possible for security purposes.
On the other hand, they don't have to right to connect to anything, except the server they're downloaded from ( so the webserver's ip).
But I'm not sure about connecting to a DB through JDBC that way.
Tom

Database Connection (JDBC) by Applet

Hi all,
I create a database connection from applet ,it worked only compiler means Jbuilder.
But just after I put it on tomcat It gave error .It didnt work there.It gives follwing error.
access denied (java.lang.RuntimePermission accessClassInPackage.sun.jdbc.odbc)
If any one knows the solution please help me.
Thanks
Virajchi

Hi all,
Dont worry about this question.
I found the solution.
Cant load directly Jdbc driver to the applet.
That directly applet cant communicate with database.
Cheers,
Virajchi

Applet database connection : access denied

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