询问TCP / IP套接字程序 [英] asking TCP/IP socket program

问题描述

我测试一个简单的TCP / IP套接字程序。在服务器中，我使用C程序，在客户端，我使用java程序。当我将结果从服务器发送回客户端时，客户端无法读取数据。



服务器发送如下格式的数据，



发送（已连接，100，strlen（100） ，0）;



客户端收到如下格式，

BufferedReader fromServer =

new BufferedReader（

new InputStreamReader（socket.getInputStream（）））;



String line = fromServer.readLine（）;

System.out.println（客户收到：+来自服务器的+）;





请帮帮我。

I test a simple TCP/IP socket program . In server , i use C program and in client , i use java program. When i send back result from server to client , client can't read data .

server send data like the following format ,

send(connected, 100,strlen(100),0);

client receive like the following format,
BufferedReader fromServer =
new BufferedReader(
new InputStreamReader(socket.getInputStream()));

String line = fromServer.readLine();
System.out.println("Client received: " + line + " from Server");


pls help me.

推荐答案

你的发送功能看起来很奇怪。它有用吗？



我会写得更好

your send function looks strange. Does it work?

I would write it a little better

send(connected, "100",strlen("100"),0);

通常是以这种方式编写的代码

normally is such code written in that way

 int cnt = 100;//or some dynamic value
 char *buffer = new char[cnt];
memcpy( buffer, someSourceData, dataSize );//smaller than cnt
send(connected, buffer,dataSize,0);

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