Win a copy of Mesos in Action this week in the Cloud/Virtualizaton forum!
  • Post Reply
  • Bookmark Topic Watch Topic
  • New Topic

How to actually create a Datasource

 
Fergus Red
Ranch Hand
Posts: 42
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Hi,
I've installed a MS SQL Server JDBC driver and got it working using a connection driver manager as in the following example.
Class.forName("com.microsoft.jdbc.sqlserver.SQLServerDriver");
Connection conn = DriverManager.getConnection
("jdbc:microsoft:sqlserver://server1:1433;User=test;Password=secret");

Now I want to use a Datasource.
To access a Datasource from my Java class I can do so by using the code:
Context ctx = new InitialContext();
DataSource ds = (DataSource)ctx.lookup("jdbc/EmployeeDB");
Connection con = ds.getConnection("matt", "wwf");

However what I want to know is how do you actually create the datasource that I will be referencing in my code as above.
 
Jamie Robertson
Ranch Hand
Posts: 1879
MySQL Database Suse
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
have a look at Frank Carver's general implementation of the Connection Pool here
Jamie
 
Ken Robinson
Ranch Hand
Posts: 52
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Usually, code that requires a DataSource is running from within a web/app server. These servers have tools (usually a GUI tool or a config file) that allow you to configure the properties of the DataSource, including JDBC driver class, URL, username, password and so on.
Each vendor most likely has a subclass of the DataSource class that implements the DataSource as they see fit. Basically, you just need to know that it is there and how to look it up. In most instances, you will not need to explicitly create it yourself.
 
  • Post Reply
  • Bookmark Topic Watch Topic
  • New Topic