Jar data file problem

[k4ghg]

I have created an executable Jar and want to include and read data from within the jar file for the application to use. Each time I run the application it does not find the data files. Any help to have a Jar application read a file within its own Jar would be appreciated.

I have tried the following and both did not work.

--------------------------------------------
try{
String soilline = null;
BufferedReader brsoils =
new BufferedReader( new FileReader(new File ("C:\\Program Files\\Calc\\Calc_DATA\\test.dat" )));
......
---------------------------------------------
try{
String soilline = null;
BufferedReader brsoils =
new FileReader(new File (System.getProperty("user.dir") + "\\test.dat" )));
.....
---------------------------------------------------
Thanks Ronnie

 

[timw]

In the class needing to read the file...

InputStream is = this.getClass().getResourceAsStream("/yourfile");

This is assuming the file is at the top level in the Jar file.

Tim

 

[k4ghg]

Thanks...Would this also work if I am running the program via an IDE? Or would I need an if statement. Thanks again this was very ehlpful...Ronnie

 

[timw]

As long as the jar is on the classpath of the application running, it will work. If running in an IDE, then you'd need to make the IDE aware of the jar, for example, as a library reference in JBuilder / Eclipse. If the jar contains the same classes that you are running under the IDE, then just check the generated classpath (easy in JBuilder - it is displayed in the console) to ensure that the directory containing the classes (which will be the most up-to-date, obviously) is earlier in the classpath than the jar reference.

Tim

 

[k4ghg]

Thanks...