External Properties in Liferay DXP

1> Add below entry in portal-ext.properties
    PropertiesLocation=D:/liferay-dxp-digital-enterprise-7.0-sp3/external.properties

2> Now you can add keys in external properties file.
    Example:-
    key1 = external_Id

3> Use above key using below java code..

         /**

 * Getting the location holding file containing data 

 *

 * @param queryString

 * @return

 */

public static String getPropertiesContent(final String queryString) {

final Properties properties = new Properties();

try {

final FileReader reader = new FileReader(

        PropsUtil.get("PropertiesLocation"));

properties.load(reader);

} catch (final IOException e) {

return "File path not found";

}

return properties.getProperty(queryString, "");

}

4> Now you can use like below

keyName=<ClassName>.getPropertiesContent(

        "key1" );