Skip to Main Content

Java Database Connectivity (JDBC)

Announcement

For appeals, questions and feedback about Oracle Forums, please email oracle-forums-moderators_us@oracle.com. Technical questions should be asked in the appropriate category. Thank you!

JDBC/JSP/MySQL Code works from my local machine, but not on server

843859May 16 2007 — edited May 16 2007
Hi there!

I've been struggling with this problem for a while.

I have a database from which I need to read and display some data on a browser. (The database is set up for remote access).

I'm using the following JSP/JDBC code to do that.

----------------------------------------------------------------------------------------------
Class.forName ("com.mysql.jdbc.Driver").newInstance();
out.println("<BR> Connecting to DB...Pls. Wait <BR>");

Connection con = DriverManager.getConnection("url","user","pwd");

if(con.isClosed())
out.println("<BR><BR><BR>" +"Could NOT connect to MySQL Database...");
else out.println("<BR> CONNECTED !!! <BR>");

Statement stmt = con.createStatement();
results = stmt.executeQuery("SELECT * FROM TableName" );


-----------------------------------------------------------------


When I run this of my local machine, it works fine. But when I upload it to a server, it doesn't run through. I dont get either the connected or not connected message.

I tried this piece of code that I found online to check the driver.
----------------------------------------------------------------------------------------------------------------
/*Driver d = (Driver)Class.forName("com.mysql.jdbc.Driver").newInstance();
out.println("<BR>Got a driver instance. ");
if (d.acceptsURL(url)) out.println("<BR>The driver does accept my URL");
else out.println("<BR>The driver doesn't like the URL I'm trying"); */

------------------------------------------------------------------------------------------------------------------

I ran it off the server and it worked. I got the outputs --Got a driver instance and The driver does accept my URL


I'm unable to figure out why this code can be run locally from my machine, but not from a different location. The database is NOT on my machine.

Any inouts will be really appreciated.

I'm using an Apache Tomcat container and the database is MySQL.
Comments
Locked Post
New comments cannot be posted to this locked post.
Post Details
Locked on Jun 13 2007
Added on May 16 2007
4 comments
204 views