Java中序列化字节数组的问题

Question

我正在尝试通过ObjectOutputStream将文件从服务器发送到客户端。我认为使用这个流发送不同的对象和原始文件数据是一种更简单的方法。

int size;
byte[] buf;
while ((size = (int) in.readObject()) > 0) {
    fOut.write((buf = (byte[]) in.readObject()), 0, size);
    System.out.printf("%d\tvs\t%d%n", Arrays.hashCode(buf), (int) in.readObject());
}

byte[] buf = new byte[(int) MB];
int bufSize;
while ((bufSize = fileReader.read(buf)) != -1) {
    out.writeObject(bufSize);
    out.writeObject(buf);
    out.writeObject(Arrays.hashCode(buf));
}
out.writeObject(-1);

in = new ObjectInputStream(socket.getInputStream());
out = new ObjectOutputStream(socket.getOutputStream());

Connecting...
Connection established
-1060163348 vs  -1060163348
-1060163348 vs  1768685466
-1060163348 vs  861707881
-1060163348 vs  1055789475
-1060163348 vs  -79313434
-1060163348 vs  385231183
-1060163348 vs  -633252012
...

Answer 1

我想问题是流保存了每个写的对象。所以我从某种缓存读取字节数组，而不是从套接字...

不过，这是有帮助的！

byte[] buf = new byte[(int) MB];
int bufSize;
while ((bufSize = fileReader.read(buf)) != -1) {
    out.writeObject(bufSize);
    out.writeObject(buf);
    out.writeObject(Arrays.hashCode(buf));
    out.reset(); // new line - it helps!!!!
}
out.writeObject(-1);