Until now, whenever I query the database I open a fresh connection to the database. How do I implement the property that once I open the connection I can reuse that?
With this done, please tell me if I could leak the resources.
Share
Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
Lost your password? Please enter your email address. You will receive a link and will create a new password via email.
Please briefly explain why you feel this question should be reported.
Please briefly explain why you feel this answer should be reported.
Please briefly explain why you feel this user should be reported.
Until now, whenever I query the database I open a fresh connection to the database. How do I implement the property that once I open the connection I can reuse that?
With this done, please tell me if I could leak the resources.
Basically you need JDBC connection pool, typically implementing
DataSourceinterface. Have a look at dbcp and c3p0. Chances are you container/server already provides an implementation of connection pooling.When you use a connection pool every time you open a connection you are actually taking one from the pool (or opening if pool is empty). When closing the connection, it is actually returned to the pool. The leak can only occur if you forget the latter.
(or forget closingResultSet,Statement…)