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通过套接字java发送字节数组而不发送长度(Sending byte array through socket java without sending length)

 我有一个问题。 我想通过套接字发送一个字节数组，但我不想发送它的长度。 我是从服务器端读取的吗？  
 我尝试过这样的事情：  
dos = new DataOutputStream(socket.getOutputStream);
dos.write(myByteArray);
 
 并在服务器端  
byte data = new data[100];
dis.read(data);
 
 但是这样，我读了100个字节或者没有字节。 我可以读取确切的号码。 我发送的字节数？ 谢谢 

I hava a question. I want to send an array of bytes through a socket but I don't want to send the length of it. Cand I read it from a server side? 
I've tried something like this: 
dos = new DataOutputStream(socket.getOutputStream);
dos.write(myByteArray);
 
and on the server side 
byte data = new data[100];
dis.read(data);
 
but in this way, I read 100 bytes or another no of bytes. Can I read exacty the no. of bytes I send? Thanks

原文：https://stackoverflow.com/questions/34267523

更新时间：2022-07-04 14:07

最满意答案

 你没有做任何事情告诉Django这些表格是分开的。 他们俩都只有一个name字段; 什么都没有告诉他们分开。  
 一个简单的解决方案是将prefix参数用于表单实例化，以便Django使字段唯一。  
if request.is_ajax():
    form1 = NewCategory(request.POST or None, prefix='form1')
    if form1.is_valid():
        ...
else:
    form1 = NewCategory(prefix='form1')

if request.is_ajax():
    form2 = NewServiceIn(request.POST or None, prefix='form2')
    if form2.is_valid():
        ...
else:
    form2 = NewServiceIn(prefix='form2')

You haven't done anything to tell Django that the forms are separate. They both only have a name field; there is nothing at all to tell them apart. 
A simple solution for this would be to to use the prefix parameter to the forms instantiations, so that Django makes the fields unique. 
if request.is_ajax():
    form1 = NewCategory(request.POST or None, prefix='form1')
    if form1.is_valid():
        ...
else:
    form1 = NewCategory(prefix='form1')

if request.is_ajax():
    form2 = NewServiceIn(request.POST or None, prefix='form2')
    if form2.is_valid():
        ...
else:
    form2 = NewServiceIn(prefix='form2')

通过套接字java发送字节数组而不发送长度(Sending byte array through socket java without sending length)

最满意答案

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