我正在通过电子邮件网关通信。该网关有一个特定的IP和端口。
网关是JSON格式化的请求,网关通常首先响应进行状态,然后是确认或错误状态,也用JSON表示。
发出请求和接收响应的代码是:
using System;
using System.IO;
using System.Net;
using System.Net.Sockets;
using System.Text;
using System.Collections.Generic;
using System.Threading;
using Microsoft.Win32;
public class TcpClientSample
{
public static void SendMessage(TcpClient client, string msg)
{
Console.WriteLine("REQUEST:" + msg);
NetworkStream stream = client.GetStream();
byte[] myWriteBuffer = Encoding.ASCII.GetBytes(msg);
stream.Write(myWriteBuffer, 0, myWriteBuffer.Length);
byte[] myWriteBuffer2 = Encoding.ASCII.GetBytes("\r\n");
stream.Write(myWriteBuffer2, 0, myWriteBuffer2.Length);
string gResponse = "";
BinaryReader r = new BinaryReader(stream);
int receivedMessages = 0;
while (true)
{
while (true)
{
char currentChar = r.ReadChar();
if (currentChar == '\n')
break;
else
gResponse = gResponse + currentChar;
}
if (gResponse != "")
{
Console.WriteLine("RESPONSE:" + gResponse);
receivedMessages = receivedMessages + 1;
}
if (receivedMessages == 2)
{
break;
}
}
}
public static void Main()
{
List<string> messages = new List<string>();
for (int i = 0; i < 1; i++)
{
String msg = "{ \"user\" : \"James\", \"email\" : \"james@domain.pt\" }";
messages.Add(msg);
}
TcpClient client = new TcpClient();
client.Connect("someIp", somePort);
int sentMessages = 0;
int receivedMessages = 0;
foreach (string msg in messages)
{
Thread newThread = new Thread(() =>
{
sentMessages = sentMessages + 1;
Console.WriteLine("SENT MESSAGES: " + sentMessages);
SendMessage(client, msg);
receivedMessages = receivedMessages + 1;
Console.WriteLine("RECEIVED MESSAGES: " + receivedMessages);
});
newThread.Start();
}
Console.ReadLine();
}
}
如果我发送的电子邮件很少(最多10个),网络流就可以了。
但是,如果我发送了数千封电子邮件,我就会陷入混乱的谎言
:{iyo“asn ooyes”“ncd”0,“s_d:”4379“nme”92729,“er_u”,“ed_t_i”2#“p cin_d:”921891010-11:11.725,“s”4663175D0105E6912ADAAFFF6FDA393367“ RPY: “rcein”
为什么会这样?
别担心我不是垃圾邮件发送者:D
答案 0 :(得分:0)
当您向TCP套接字写入消息时,它将使用发送的数据进行响应。当缓冲区已满时,我希望它为0,但无论如何都要提前发送缓冲区。你应该用返回值推进它:)
编辑:看起来你正在使用一个写入内部缓冲区的流抽象。情况是一样的。当内部缓冲区状态没有说明这一点时,你说“消息已被完全发送”,即位置不等于限制。在继续之前,您需要继续发送,直到剩余的缓冲区数量为0.
答案 1 :(得分:0)
我解决了这个问题,只需要从流中读取一个方法:
private TcpClient client;
private NetworkStream stream;
public void ListenFromGateway()
{
...
while (true)
{
byte[] bytes = new byte[client.ReceiveBufferSize];
//BLOCKS UNTIL AT LEAST ONE BYTE IS READ
stream.Read(bytes, 0, (int)client.ReceiveBufferSize);
//RETURNS THE DATA RECEIVED
string returndata = Encoding.UTF8.GetString(bytes);
//REMOVE THE EXCEDING CHARACTERS STARTING ON \r
string returndata = returndata.Remove(returndata.IndexOf('\r'));
...
}
感谢您的帮助