if(upload!=null){
for(int i=0;i<upload.size();i++){
InputStream is = new FileInputStream(upload.get(i));
OutputStream os = new FileOutputStream("d:\\upload\\"+uploadFileName.get(i));
byte buffer[] = new byte[1024];
int count = 0;
while((count=is.read(buffer))>0){
os.write(buffer, 0, count);
}
哦,大致了解了,但是这句
byte buffer[] = new byte[1024];
是什么意思?主要是个什么作用呢