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How to set up DataSource in plain Java application?

 
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Hi,
I know how to set up datasource for servlet applications, we have to modify server.xml and web.xml in Tomcat to do the job.
I am wondering how I can set up datasource for plain java application such as getting datasource from a main method?
I try to do the same as for servlets, but it keep giving set up errors.
thanks,
 
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Here is a MySQL example:

Additionally, you can put your DataSource in a JNDI context for future easy access.
 
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What is the benefit of doing this? Does it create a connection pool?
 
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There's not really any advantage. It's just a matter of consistency since you need to use DataSource if you're using JNDI. Sun's hinted that they may deprecate the traditional method of loading/registering the JDBC driver explicitly and leave DataSource as the only technique for connecting to a database.
@D
 
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