java通过socket发送图像而不会损坏图像
大家好,我正在尝试编写一个安卓应用程序,用于通过socket在pc上发送图像。 我有一个安卓客户端和一个JavaSE服务器。 有时候图像被破坏了,我不知道为什么。 我已尝试发送175张照片,其中9张已损坏。 这是安卓客户端的代码: PS:我使用ObjectInputStream和ObjectInputStream
try {
//Get image
//the variable "uri" is the uri of image
InputStream is = contentResolver.openInputStream(uri);
final Bitmap bitmap = BitmapFactory.decodeStream(is);
ByteArrayOutputStream baos = new ByteArrayOutputStream();
bitmap.compress(Bitmap.CompressFormat.JPEG, 100, baos);
byte array[] = baos.toByteArray();
int length = array.length;
Log.d("MY-DEBUG", "length: " + length);
//Send lenght of image
out.writeInt(length);
out.flush();
int remainent = length;
int send = 0;
int size = SIZE;
while (remainent > 0) {
if (remainent < size)
size = remainent;
//System.out.println("ATTUALE: " + send + ", GRANDEZZA ARRAY: " + size);
out.write(array, send, size);
int percentage = (100 * send) / length;
publishProgress(percentage);
System.out.println("\n === FINE === \n");
send += size;
remainent -= size;
Log.d("MY-DEBUG", "Send " + send + "/" + length + " - remainent: " + remainent);
}
out.flush();
Log.d("MY-DEBUG", "Immagine inviata");
publishProgress(0);
} catch (IOException e) {
e.printStackTrace();
} finally {
try {
out.flush();
} catch (IOException e) {
e.printStackTrace();
}
}
} catch (FileNotFoundException e) {
e.printStackTrace();
}
这是JavaSE中服务器的代码
try {
//Read length
int length = (int) in.readInt();
File target = new File(percorso + "\\img-" + sequenza + ".jpg");
outs = new FileOutputStream(target, true);
System.out.println("Grandezza: " + length);
int remainent = length;
int read = 0;
int total = 0;
int size = SIZE;
byte buffer[] = new byte[size];
while ((read = in.read(buffer, 0, size)) != -1) {
total += read;
remainent = length - total;
System.out.println("read: " + read + " - Received: " + total + "/" + length + " - remainent: " + remainent);
int percentuale = (100 * total) / length;
progressBar.setValue(percentuale);
outs.write(buffer);
outs.flush();
Thread.sleep(1);
if (remainent == 0) break;
}
progressBar.setValue(0);
//Thread.sleep(100);
//in.read();
System.out.println("END");
} catch (IOException e1) {
System.err.println(e1.getMessage());
e1.printStackTrace();
} catch (InterruptedException e) {
e.printStackTrace();
} finally {
if (outs != null) {
try {
outs.flush();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} finally {
try {
outs.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
Thread.currentThread().interrupt();
}
SIZE变量声明如下
private static final int SIZE = 1024;
如果我设置了一个值>;在1024张照片中,所有照片都已损坏。 如果我使用1024张照片,一些照片会损坏。 多谢各位
# 1 楼答案
问题在于这一行:
您正在无条件地写出整个缓冲区,其长度始终为
SIZE
字节。但是如果你有一个“简短”的阅读怎么办?请尝试以下方法: