Property file string length limitation (JAVA)

Question

Hi %,

playing around with a property file i figured that there seems to be a limitation of 40char to save in a single property.

I do the following:

File configFile = new File("config.properties");

Properties props = new Properties();
props.put( "cc_server", "sort_of_a_long_string_aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa");
FileOutputStream fos = new FileOutputStream( configFile );
PrintWriter pw = new PrintWriter( fos );
props.list( pw );
pw.flush();
pw.close();   
System.out.println("done.");

The result is, that only the first 37char get saved, extended by "...". I debuged that the PropertiesHash's got the right values, the writing to the file seems to be the problem.

Is there a way to extend / switch off this limitation?

tia

 K

Answer 1

There is no such limit

Since you mention "..." i have this question: are you displaying the value in a JLabel ? The "..." is a typical way of a JLabel rendering a String thats too long.

There also is an easier way to save Properties

File propertiesfile=new File("fileName.props");
propstosave.store(new FileOutputStream(propertiesfile), "groupnames");

Answer 2

you are using a debugging feature to save the file. The list() method is not intented for saving properties to a file, you should use the store() method instead:

File configFile = new File("config.properties");
Properties props = new Properties();
props.put("cc_server", "sort_of_a_long_string_aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa");
props.store(new FileOutputStream(configFile),"aaa");