获取文件在项目中的路径

try {

//  获取当前的工作路径
String url = System.getProperty("user.dir");

//  拼接文件路径
String file = url + "\\src\\main\\resources\\login.txt";

InputStream is = new FileInputStream(file);
Reader reader = new InputStreamReader(is,"utf-8");
BufferedReader bufferedReader = new BufferedReader(reader);

String read = bufferedReader.readLine();
System.out.println(read);

bufferedReader.close();
reader.close();
is.close();
} catch (Exception e) {
e.printStackTrace();
}