📄 connectionpooldemo.java
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package onlyfun.caterpillar;
import java.io.IOException;
import java.sql.Connection;
import java.sql.SQLException;
public class ConnectionPoolDemo {
public static void main(String[] args) {
try {
DBSource dbsource = new BasicDBSource("jdbc2.properties");
Connection conn1 = dbsource.getConnection();
dbsource.closeConnection(conn1);
Connection conn2 = dbsource.getConnection();
System.out.println(conn1 == conn2);
} catch (IOException e) {
e.printStackTrace();
} catch (ClassNotFoundException e) {
e.printStackTrace();
} catch (SQLException e) {
e.printStackTrace();
}
}
}
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