发送时服务器仍然挂 [英] Server remains hang when sending
本文介绍了发送时服务器仍然挂的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我书面方式在客户端（Android版） - 服务器（C＃）应用程序。我得到的code从这里：
<一href=\"http://stackoverflow.com/questions/6387579/how-to-make-client-on-android-listen-to-server-on-c\">How使客户端在Android上听取他们对C＃服务器？
万物工作正常，当我刚刚从客户端发送消息到服务器，从服务器到客户端（关闭服务器端的插座）。现在，我想的是：发送消息到服务器，从服务器中接收消息，然后再一个消息发送到服务器。服务器挂起，在发送邮件。如果我发送后关闭服务器端插座，它给出了一个错误处置，我可以从服务器发送的数据。
I'm writting a client(Android) - server(c#) application. I get the code from here: How to make client on Android listen to server on C#? Everythings is working fine, when i just send message from the client to server, and from server to client (closing the socket on server side). Now, what i want is : send message to server, receive message from server, then send again a message to server. The server hangs at sending the message. If i close the socket on server side after sending, it gives a dispose error, and i can's send the data from the server.
我的服务器code是：
My server code is:
/*************************************SERVER*****************************/
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Net;
using System.Net.Sockets;
namespace SERVER2
{
class Program
{
public static void Main()
{
try
{
IPAddress ipAd = IPAddress.Parse("192.168.2.102");
TcpListener myList = new TcpListener(ipAd, 18001);
myList.Start();
Console.WriteLine("The server is running at port 18001...");
Console.WriteLine("The local End point is :" +
myList.LocalEndpoint);
Console.WriteLine("Waiting for a connection.....");
m:
Socket s = myList.AcceptSocket();
Console.WriteLine("Connection accepted from " + s.RemoteEndPoint);
byte[] b = new byte[100];
int k = s.Receive(b);
char cc = ' ';
string test = null;
Console.WriteLine("Recieved1...");
for (int i = 0; i < k - 1; i++)
{
cc = Convert.ToChar(b[i]);
test += cc.ToString();
}
Console.WriteLine("Received characters1: "+test);
ASCIIEncoding asen = new ASCIIEncoding();
s.Send(asen.GetBytes("The string was recieved by the server."));
Console.WriteLine("\nSent Acknowledgement");
//s.Close(); <-if i enable this, i get a dispose error
k = s.Receive(b);//i get dispose error here
cc = ' ';
test = null;
Console.WriteLine("Recieved2...");
for (int i = 0; i < k - 1; i++)
{
cc = Convert.ToChar(b[i]);
test += cc.ToString();
}
Console.WriteLine("Received characters2: " + test);
/* clean up */
goto m;
s.Close();
myList.Stop();
}
catch (Exception e)
{
Console.WriteLine("Error..... " + e.Message);
}
Console.ReadLine();
}
}
}
我的客户code是：
My client code is:
/******************************CLIENT*****************************************/
Socket socket = null;
try
{
Toast.makeText(context,"IP: "+ip+" port: "+port,10000).show();
InetAddress serverAddr = InetAddress.getByName(ip);
socket = new Socket(serverAddr, port);
}
catch (UnknownHostException e1)
{
Toast.makeText(context,"UnknownHostException ",10000).show();
}
catch (IOException e1)
{
Toast.makeText(context,"IOException ",10000).show();
}
String message = "1";
PrintWriter out = null;
BufferedReader in = null;
try {
Log.d("TCP", "C: Sending: '" + message + "'");
/*write*/
out = new PrintWriter( new BufferedWriter( new OutputStreamWriter(socket.getOutputStream())),true);
out.println(message);
out.flush();
/*read*/
in = new BufferedReader(new InputStreamReader(socket.getInputStream()));
String text = "";
String finalText = "";
while ((text = in.readLine()) != null)
{
finalText += text;
}
Toast.makeText(context, "FinalText: "+finalText, 10000).show();
Log.d("TCP", "C: Sent.");
Log.d("TCP", "C: Done.");
in.close();
/*write*/
out = new PrintWriter( new BufferedWriter( new OutputStreamWriter(socket.getOutputStream())),true);
out.println(message);
out.flush();
} catch(Exception e) {
Log.e("TCP", "S: Error", e);
} finally {
try {
socket.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
感谢先进的！
推荐答案
的问题是，当客户端收到的消息，从服务器中，而部分进入一个无限循环。我修改我的应用程序是这样的：
The problem was that when the client received the message from the server , in the while part entered into an infinite loop. I modify my app like this:
我的客户端部分：
try
{
Toast.makeText(context,"IP: "+ip+" port: "+port,10000).show();
InetAddress serverAddr = InetAddress.getByName(ip);
socket = new Socket(serverAddr, port);
}
catch (UnknownHostException e1)
{
Toast.makeText(context,"UnknownHostException ",10000).show();
}
catch (IOException e1)
{
Toast.makeText(context,"IOException ",10000).show();
}
String message = "HELLO FROM CLIENT";
PrintWriter out = null;
BufferedReader in = null;
try {
Log.d("TCP", "C: Sending: '" + message + "'");
/*write*/
OutputStream ostr=socket.getOutputStream();
OutputStreamWriter outputstr=new OutputStreamWriter(ostr);
BufferedWriter buffw=new BufferedWriter(outputstr);
out = new PrintWriter(buffw ,true);
out.println("HELLO 1 FROM CLIENT");
/*read - i modify to this*/
InputStreamReader reader=new InputStreamReader(socket.getInputStream());
char[] bytesreceived=new char[50];
reader.read(bytesreceived , 0, 50);
String text="";
for (int i=0;i<bytesreceived.length;i++)
{
text+=bytesreceived[i];
}
Toast.makeText(context, "Received1: "+text.trim(), 10000).show();
Log.d("IdealLog","Received1: "+text.trim());
/*write*/
out = new PrintWriter( new BufferedWriter( new OutputStreamWriter(socket.getOutputStream())),true);
out.println("HELLO 2 FROM CLIENT");
/*read*/
reader=new InputStreamReader(socket.getInputStream());
bytesreceived=new char[50];
reader.read(bytesreceived , 0, 50);
text="";
for (int i=0;i<bytesreceived.length;i++)
{
text+=bytesreceived[i];
}
Toast.makeText(context, "Received2: "+text.trim(), 10000).show();
Log.d("IdealLog","Received2: "+text.trim());
} catch(Exception e) {
Log.e("TCP", "S: Error", e);
} finally {
try {
socket.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
我的服务器端code：
My server side code:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Net;
using System.Net.Sockets;
using System.Threading;
namespace SocketServer
{
class Program
{
static void Main(string[] args)
{
IPEndPoint ip = new IPEndPoint(IPAddress.Any, 18001);
Socket socket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
socket.Bind(ip);
socket.Listen(10);
Console.WriteLine("Waiting for a client...");
Socket client = socket.Accept();
IPEndPoint clientep = (IPEndPoint)client.RemoteEndPoint;
Console.WriteLine("Connected with {0} at port {1}", clientep.Address, clientep.Port);
string welcome = "HELLO 1 FROM SERVER";
byte[] data = new byte[200];
int receiveddata=client.Receive(data);
Console.WriteLine("Received data from CLIENT1: {0}", System.Text.ASCIIEncoding.ASCII.GetString(data).Trim());
ASCIIEncoding asen = new ASCIIEncoding();
byte[] data2 = new byte[200];
data2 = asen.GetBytes(welcome);
int sentdata=client.Send(data2, data2.Length, SocketFlags.None);
Console.WriteLine("Sent data from SERVER: {0}", welcome);
byte[] data3 = new byte[200];
Console.WriteLine("Receiving data from CLIENT : {0}", "...");
client.Receive(data3);
Console.WriteLine("Received data from CLIENT2: {0}", System.Text.ASCIIEncoding.ASCII.GetString(data3).Trim());
byte[] data4 = new byte[200];
data4 = asen.GetBytes("HELLO 2 FROM SERVER");
sentdata = client.Send(data4, data4.Length, SocketFlags.None);
client.Close();
socket.Close();
Console.WriteLine("Disconnected from {0}", clientep.Address);
Console.ReadLine();
}
}
}
现在，一切工作正常，没有窍门。唯一的问题是，我不知道这是否会接收，发送文件。
Now, everything is working fine, without hang. The only problem is, that i don't know if this will work for receiving , sending files.
这篇关于发送时服务器仍然挂的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
查看全文
