Question

i am using the classLoader method to load a property file. Using this, I am able to retrieve the values of properties but now I want to update the values of some properties and i am not able to do it. Please help. Here, is the code:

InputStream inputStream = this.getClass().getClassLoader()
.getResourceAsStream(“PublishDate.properties”);

try {
    Properties properties = new Properties();

    try {
       // load the inputStream using the Properties
       properties.load(inputStream);
    }
    catch(Exception e) {
       e.printStackTrace();
    }
    // get the value of the property
    String propValue = properties.getProperty("lastHtlProcessPublishDate");

here, in propValue i get the right value from file. I am updating this like this:

properties.put("lastHtlProcessPublishDate",dateFormatter.format(new Date()));   
properties.store(new FileOutputStream("PublishDate.properties"), null);

Using this the value doesn’t get update but when i provide the complete path for PublishDate.properties then it works.
But, I don’t want to give the complete path as the path is dynamic. Does someone knows how to do this using some relative path. Please advise me on this.

Answer 1

You might want to try commons-configuration and use a PropertiesConfiguration. That should satisfy all your needs.