代码是:
String[] absoluteFilePath = null;
try {
File file = new File(filePath);
if( file.isDirectory()) {
System.out.println("文件夹");
String[] fileList = file.list();
for (int i = 0; i < fileList.length; i++) {
File fullFile = new File(filePath + "\" + fileList[i]);
absoluteFilePath[i] = fullFile.getAbsolutePath();
System.out.println("absoluteFilePath=" + absoluteFilePath[i]);
}
}
}
然后会在 absoluteFilePath[i] = fullFile.getAbsolutePath(); 这一行报java.lang.NullPointerException