Connecting to a database in a decoupled manner-by reading a configuration file

package utils.jdbc;import java.io.ioexception;import java.io.inputstream;import  java.sql.connection;import java.sql.drivermanager;import java.sql.preparedstatement;import  java.sql.resultset;import java.sql.sqlexception;import java.util.properties;public class  dbutils {private connection conn;/** *  sets the type of the database by reading the parameters of the utils.properties  under the Classpath  *  @return  conn  Returns a connection  *  @throws  IOException  throws an IO exception  * @ author  Schjering  *  Time: December 7, 2015   */public connection getconnection ()  throws  ioexception{/* * declares four parameters for  * database driver  *jdbc * database user name  * database password   */string  driver = null; string url = null; string username = null; string password = null;//reads the configuration file    Inputstream in = getclass () in the input stream mode. getClassLoader (). getResourceAsStream ("Utils.propErties "); Properties properties = new properties ();p roperties.load (in),   //load/* *   Read the values of individual parameters  */driver = properties.getproperty ("Driver") from the configuration file;url =  Properties.getproperty ("url"), Username = properties.getproperty ("username");p assword =  Properties.getproperty ("password"); Try {class.forname (driver);conn =  Drivermanager.getconnection (Url,username,password);}  catch  (exception e)  {e.printstacktrace ();} Return conn;} Public void releaseconn (connection conn,resultset rs,preparedstatement pstm) {try  {if (conn != null) {conn.close ();}}  catch  (sqlexception e)  {e.printstacktrace ();} Try {if (rs != null) {rs.close ();}}  catch  (sqlexception e)  {e.printstacktrace ();} Try {if (pstm != null) {pstm.close ();}}  catch  (sqlexception e)  {e.printstacktrace ();}}

Connecting to a database in a decoupled manner-by reading a configuration file