Java Eclipse，导出jar。使用导入文件

Question

I have created project that should display file "pattern.xml" which is located in /src/files/pattern.xml .

It works fine when I run code in eclipse. But when I export project to executable jar and try to execute it, jar doesn't work.

Maybe problem is here?

 URL dir_url = this.getClass().getClassLoader()
                .getResource("files\\pattern.xml");

Here is code. Any ideas?

public class ResourseClass {

public static void main(String[] args) {
    // TODO Auto-generated method stub
    test t = new test();
    t.Go();
    }
}

class test {

void Go() {
    try {

        URL dir_url = this.getClass().getClassLoader()
                .getResource("files\\pattern.xml");
        File dir = new File(dir_url.toURI());
        if (dir.exists()) {
            System.out.println("file exists");
        }

        FileReader frI = new FileReader(dir);
        BufferedReader br = new BufferedReader(frI);
        String text;
        String textout = "";

        while ((text = br.readLine()) != null) {
            textout = textout + text + "\n";
        }

        JOptionPane.showMessageDialog(null, textout, "Information",
                JOptionPane.WARNING_MESSAGE);
        br.close();

    } catch (FileNotFoundException e2) {
        // TODO Auto-generated catch block
        e2.printStackTrace();
    } catch (IOException e1) {
        // TODO Auto-generated catch block
        e1.printStackTrace();
    } catch (URISyntaxException e3) {
        // TODO Auto-generated catch block
        e3.printStackTrace();
    }
}

    }

Package window

Normal execution in eclipse

When code is executed in eclipse it works.

Answer 1

You'll want to move the pattern.xml file to the same folder as your class files when you run it outside of eclipse.