java - Write/Update properties file value in spring

Question

I have some requirement where I want to write/update the value in the properties file I am using the my spring application.

I have googled it but I have not found a direct way of doing it using Spring.

Does any one aware of how to do it or is there any best way to do it.

Thanks in advance.

Answer 1

You can achieve that like this :

public void saveParamChanges() {
   try {
     // create and set properties into properties object
     Properties props = new Properties();
     props.setProperty("Prop1", "toto");
     props.setProperty("Prop2", "test");
     props.setProperty("Prop3", "tata");
     // get or create the file
     File f = new File("app-properties.properties");
     OutputStream out = new FileOutputStream( f );
     // write into it
     DefaultPropertiesPersister p = new DefaultPropertiesPersister();
     p.store(props, out, "Header COmment");
   } catch (Exception e ) {
    e.printStackTrace();
   }
}

source

EDIT : updated with the defaultPropertiesPersiter from org.springframework.Util