spring boot路径问题

File path = new File(ResourceUtils.getURL("classpath:").getPath());
if(!path.exists()) path = new File("");
System.out.println(path.getAbsolutePath());
//第二种
System.out.println(System.getProperty("user.dir"));
//第三种
String path1 = ClassUtils.getDefaultClassLoader().getResource("").getPath();
System.out.println(URLDecoder.decode(path1, "utf-8"));
//第四种
String path2 = ResourceUtils.getURL("classpath:").getPath();
System.out.println(path2);
//第五种
ApplicationHome h = new ApplicationHome(getClass());
File jarF = h.getSource();
System.out.println(jarF.getParentFile().toString());