Tuesday, 23 August 2011

Reading Files cross jars

To my somewhat annoyance I discovered that reading files from the current package is done with a normal FileReader but if you want to read the same file from a different jar you have to use the getResourceAsStream() method.

public class Read {
public static void main(String[] args) {

public static String doRead() {
String result = "";
try {
BufferedReader fr;

InputStream inputStream = Read.class.getResourceAsStream("/data.txt");
if (inputStream != null) {
fr = new BufferedReader(new InputStreamReader(inputStream));
} else {
fr = new BufferedReader(new FileReader(new File("resources/data.txt")));

result = fr.readLine();
} catch (IOException e) {
return result;


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