如何在Java中定义文件路径以使其准备好进入生产阶段？

Question

I am writing a program in java with netbeans IDE which receives a jasper report *.jrxml and then displays the report for the user. I wrote the following line of code for the file path

String reportSource = "src\\jasper-reports\\report.jrxml";  

but when I move the dist folder in some other place and try to run the jar file inside it, my program can not find the report.

my problem is that were should I put the *.jrxml file and how to define it's path in my program so that when I want to give my software to someone else it runs without any errors (eg the program can find the file)

Answer 1

avoid using absolute paths. try to include the file as a resource in your netbeans project. then in your code you can search for and load the file as

new InputStreamReader((Main.class.getResourceAsStream("/report.jrxml")))

something like that depending on where the file resides in your project

Answer 2

it's more recommended using one of the two approaches:

1. pass the locations/paths as a -D property=value in the Java application launcher command line http://www.tutorialspoint.com/unix_commands/java.htm

2. store it the locations/paths in a configurations file with a unique key and edit the file accordingly for different environments, egthis files always stored in ${HOME}/config_files/ directory

absolute paths considered a bad practice