Java中获取工程路径

public class MainTest {

    public static void main(String[] args) {
        new MainTest();.getPath();
    }

    private void getPath() {
        String path = "";
        int i = 0;
        while (i != -1) {
            i++;
            switch (i) {
            case 1:
                path = this.getClass().getClassLoader().getResource("").getPath();
                break;
            case 2:
                path = this.getClass().getClassLoader().getResource("\\").getPath();
                break;
            case 3:
                path = System.getProperty("user.dir");
                break;
            case 4:
                path = this.getClass().getClassLoader().getResource(".").getPath();
                break;
            case 5:
                path = this.getClass().getResource("").getPath();
                break;
            case 6:
                path = this.getClass().getResource("\\").getPath();
                break;
            case 7:
                path = Thread.currentThread().getContextClassLoader().getResource("").getPath();
                break;
            case 8:
                path = Thread.currentThread().getContextClassLoader().getResource("\\").getPath();
                break;
            case 9:
                path = Thread.currentThread().getContextClassLoader().getResource(".").getPath();
                break;

            default:
                i = -1;
                break;
            }
            if (i != -1)
                System.out.println("path_" + i + "\t" + path);
        }
    }

}

Reference to

JAVA中获取项目文件路径