How to create connection pool with mysql database which is present on remote server?

Question

i am working on a MVC project in java. For my operation I use database many times. many times my database connection gives my error like connection is not free to use. So I want to create a connection pool with my mysql database which is present on a remote server. Please help. Thanks in advance.

Answer 1

I would use apache commons dbcp: https://commons.apache.org/proper/commons-dbcp/

Assuming you have a Properties object with all the JDBC parameters, you can create a connection pool with:

private static DataSource createDataSource(Properties props)
        throws Exception {
    return BasicDataSourceFactory.createDataSource(props);
}

If you want to emulate the behavious of an appserver, you can put this datasource in a JNDI container; otherwise, you can just assign it to a static variable.

Now, when whenever you need a JDBC connection, you do:

try (Connection cnt = myDataSource.getConnection();
    PreparedStatement stmt = cnt.prepareStatement("...")) {
    // lots of very useful things
}