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From "Craig R. McClanahan" <craig...@apache.org>
Subject Re: *** HELP *** mySQL connectivity problems
Date Mon, 30 Jul 2001 17:39:13 GMT
On Mon, 30 Jul 2001, SIMONIN Alexandre wrote:

> Hi,
> 
> I'm running mySQL 2.0.4 and Tomcat 4.0 on Cobalt/Linux. 
> 

Are you running Tomcat 4 with a security manager (i.e.
"$CATALINA_HOME/bin/catalina.sh start -security")?  That seems likely,
given the fact that you're gatting a security manager exception.

If so, you need to grant your JDBC driver permission to create a network
connection to port 3306 on your database host.  This is done in the
"conf/catalina.policy" file.  There are some notes near the bottom of that
file documenting the way that you add this permission.

Craig McClanahan


> When trying to get a connection to the database, I got the following error
> (the code is provided below - exact id and password replaced for
> confidentiality).
> 
> Step 1 : Class.forName("org.gjt.mm.mysql.Driver"); OK
> Step 2 :
> getConnection("jdbc:mysql://sherweb7.sherweb.com:3306/myDatabase?user=myID&p
> assword=myPwd"); *** FAILURE ***
>      SQLException: Cannot connect to MySQL server on
> sherweb7.sherweb.com:3306. Is there a MySQL server running on the
> machine/port you are
>      trying to connect to? (java.security.AccessControlException)
>      SQLState: 08S01
>      VendorError: 0
> 
> Few comments:
> 1/ the mySQL server's site address is OK (not the localhost)
> 2/ the mySQL server's port is OK
> 3/ the table name is OK
> 4/ the userID is OK
> 5/ the password is OK
> 6/ the connection looks fine through phpMyAdmin
> 7/ I get the same java.security.AccessControlException when doing the same
> request without the userID and password
> 6/ I got a java.net.ConnectException (which seems normal to me) when trying
> to call the server as if it was local to my machine, i.e.:
> jdbc:mysql:///myDatabase?user=myID&password=myPwd
> 
> Any suggestion?
> 
> The code:
> 
>     try {
>       Class.forName("org.gjt.mm.mysql.Driver");   // this or <the
> same>.newInstance() does the same
>       System.out.println("Step1: Class.forName(\"org.gjt.mm.mysql.Driver\"):
> OK");
>     }
>     catch (Exception e) {
>       System.out.println("Class.forName(\"org.gjt.mm.mysql.Driver\"): ***
> FAILURE ***");
>     }
> 
>     Connection myConn = null;
> 
>     try {
>       myConn =
> DriverManager.getConnection("jdbc:mysql://sherweb7.sherweb.com:3306/myDataba
> se?user=myID&password=myPwd");
>       System.out.println("Step 2:
> getConnection(\"jdbc:mysql://sherweb7.sherweb.com:3306/myDatabase?user=myID&
> password=myPwd\"): OK");
>     }
>     catch (SQLException e) {
>       System.out.println("Step 2:
> getConnection(\"jdbc:mysql://sherweb7.sherweb.com:3306/myDatabase?user=myID&
> password=myPwd\"): *** FAILURE ***");
>      System.out.println(" SQLException: "+e.getMessage());
>      System.out.println(" SQLState: "+e.getSQLState());
>      System.out.println(" VendorError: "+e.getErrorCode());
>     }
> 
> 
> 


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