[英]Someone please explain why I'm having trouble sending large byte[] to server via TCP
有人可以向我解释为什么服务器上的byte[] buf
不包含客户端发送的100,000个1吗? 在大约60k字节标记处,值保持全零。 我承认我在Streams或TCP方面工作不多,所以我确定我做错了什么。 我只是不明白那是什么。 我已经在服务器上使用InputStream
和BufferedInputStream
尝试了相同的结果。 谢谢任何能抽出宝贵时间向我解释的人!
客户端代码非常简单:
byte[] msgBytes = new byte[100000];
for (int i=0;i<msgBytes.length;i++){
msgBytes[i] = 1;
}
Socket sck = null;
try {
sck = new Socket("my.server.net", 1234);
OutputStream outStream = sck.getOutputStream();
outStream.write(msgBytes);
} catch (Exception e) {
e.printStackTrace();
} finally {
try {
sck.close();
} catch (IOException e) {
e.printStackTrace();
}
}
同样,服务器代码也很简单:
ServerSocket srvSock = new ServerSocket(1234);
Socket sock = srvSock.accept();
returnAddress = sock.getInetAddress();
returnPort = sock.getPort();
BufferedInputStream iStream = new BufferedInputStream(sock.getInputStream(), 100000);
byte[] buf = new byte[100000];
iStream.read(buf);
尝试用DataInputStream
代替BufferedInputStream
并使用readFully
,因此您的服务器代码readFully
为:
ServerSocket srvSock = new ServerSocket(1234);
Socket sock = srvSock.accept();
returnAddress = sock.getInetAddress();
returnPort = sock.getPort();
DataInputStream iStream = new DataInputStream(sock.getInputStream());
byte[] buf = new byte[100000];
iStream.readFully(buf);
是的,但是无论如何,您都需要阅读所有流,您不知道另一边的大小。 此外,您不应将流内容读取到内存中,而最好尝试进行处理。
BufferedInputStream iStream = new BufferedInputStream(sock.getInputStream(), 100000);
byte[] buf = new byte[100000];
int cnt;
StringBuffer content = new StringBuffer();
while ((cnt = iStream.read(buf)) != -1) {
content.append(buf); // you should not store content of stream, but better process it if possible
};
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.