用递归方法读取嵌套文件夹下的文件路径

import java.io.File;

public class test {
public static void readfile(String filepath){
File file = new File(filepath);
if(!file.isDirectory())
{
System.out.println(file.getAbsolutePath());
}
else if(file.isDirectory())
{
String[] filelist = file.list();
for(int i=0;i<filelist.length;i++)
{
File readfile = new File(filepath+"\\"+filelist[i]);
if(!readfile.isDirectory())
{
System.out.println(readfile.getAbsolutePath());
}
else if(readfile.isDirectory())
{
readfile(filepath+"\\"+filelist[i]);
}

}
}
}
public static void main(String[] args){
readfile("d:\\照片");
}
}