Java套接字，是死锁还是什么？ [英] Java socket, Is that a dead lock or what?

问题描述

我有一个客户端服务器程序在服务器端使用套接字并且以这种方式进行读写

I have a client-server program using socket on the server side and read and write is happening in that way

soc = serversocket.accept();
System.out.println("Accepted");

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

if(in.readUTF() == null ? " " != null : !in.readUTF().equals(" "))
{
    diskinfo.setPath(in.readUTF());
}
Item[] pac = diskinfo.get();

out.writeObject(pac);

同样在cilent（android）方面......

and similarly on the cilent(android) side...

Log.v("read", "item");
soc = new Socket(InetAddress.getByName("10.0.2.2"), 3838);
output = new ObjectOutputStream(soc.getOutputStream());
input = new ObjectInputStream(soc.getInputStream());

try 
{
    output.writeUTF(path);
    packets = (Item[]) input.readObject();
} 
catch (ClassNotFoundException e) 
{
    // TODO Auto-generated catch block
    e.printStackTrace();
}

问题是，在建立连接后，程序卡住了他们，给出了没有错误没有例外;只需停止

The problem is that, after the connection is established the program stuck their, giving no error no exception; just stop

推荐答案

它是一个死锁，你必须先创建并刷新ObjectOutputStream。这是因为ObjectInputStream在继续之前读取OOS发送的标头。

Its a deadlock, you must create and flush the ObjectOutputStream first. This is because ObjectInputStream reads the header sent by the OOS before continuing.

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