- android - RelativeLayout 背景可绘制重叠内容
- android - 如何链接 cpufeatures lib 以获取 native android 库?
- java - OnItemClickListener 不起作用,但 OnLongItemClickListener 在自定义 ListView 中起作用
- java - Android 文件转字符串
我构建了一个通过 TCP 套接字发送字符串的应用程序。它是这样工作的:
服务器等待连接 -> 当有人连接时,如果字符串包含 <EOG
,它会读取字符串它会停止,否则会发送响应。客户端是这样工作的:客户端尝试连接到服务器 -> 发送字符串 -> 从服务器读取响应,如果 respod 包含 <EOG>
它停止了。
它发送我告诉它的每个字符串,但是当我发送一个包含 <EOG>
的字符串时它只发送 5 个字节并停止。这是服务器代码:
static void Main(string[] args)
{
string messageFromClient = null;
Socket listener = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
byte[] bytes = new byte[1024];
IPAddress ipAdress = IPAddress.Parse(LocalIPAddress());
const int PORT = 13000;
IPEndPoint localEndPoint = new IPEndPoint(ipAdress, PORT);
try
{
listener.Bind(localEndPoint);
listener.Listen(10);
Console.WriteLine("Wating for a connection..");
Socket handler = listener.Accept();
Console.WriteLine("Got a connection from {0}", handler.RemoteEndPoint.ToString());
while (true)
{
while (true)
{
bytes = new byte[1024];
int bytesRec = handler.Receive(bytes);
messageFromClient += Encoding.ASCII.GetString(bytes, 0, bytesRec);
if (messageFromClient.IndexOf("<Stop>") > -1) break;
}
if (messageFromClient.Contains("<EOG>"))
{
Console.WriteLine("Text recived: {0}",messageFromClient.Replace("<Stop>",""));
handler.Shutdown(SocketShutdown.Both);
handler.Close();
Console.WriteLine("Handler closed.");
return;
}
Console.WriteLine("Text recived: {0}", messageFromClient.Replace("<Stop>", ""));
messageFromClient = null;
string readInput = Console.ReadLine() + "<Stop>";
byte[] messageToClient = Encoding.ASCII.GetBytes(readInput);
handler.Send(messageToClient);
if (readInput.Contains("<EOG>"))
{
handler.Shutdown(SocketShutdown.Both);
handler.Close();
Console.WriteLine("Handler closed.");
return;
}
}
}
catch (SocketException se)
{
Console.WriteLine(se.ToString());
}
catch (ArgumentNullException ane)
{
Console.WriteLine(ane.ToString());
}
}
public static string LocalIPAddress()
{
IPHostEntry host;
string localIP = "";
host = Dns.GetHostEntry(Dns.GetHostName());
foreach (IPAddress ip in host.AddressList)
{
if (ip.AddressFamily == AddressFamily.InterNetwork)
{
localIP = ip.ToString();
break;
}
}
return localIP;
}
这是客户端代码:
static void Main(string[] args)
{
IPAddress ipAdress = IPAddress.Parse(LocalIPAddress());
byte[] bytes = new byte[1024];
const int PORT = 13000;
IPEndPoint remoteEP = new IPEndPoint(ipAdress, PORT);
Socket sender = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
string messageFromServer = null;
try
{
sender.Connect(remoteEP);
Console.WriteLine("Connected to {0}",sender.RemoteEndPoint.ToString());
while (true)
{
string readInput = Console.ReadLine() + "<Stop>";
byte[] messageToServer = Encoding.ASCII.GetBytes(readInput);
if (readInput.Contains("<EOG>"))
{
messageToServer = Encoding.ASCII.GetBytes("<EOG>");
int bytesSentEnd = sender.Send(messageToServer);
Console.WriteLine("Sent {0} bytes to the server", bytesSentEnd);
sender.Shutdown(SocketShutdown.Both);
sender.Close();
Console.WriteLine("Sender closed.");
return;
}
int bytesSent = sender.Send(messageToServer);
Console.WriteLine("Sent {0} bytes to the server", bytesSent);
while (true)
{
int bytesRec = sender.Receive(bytes);
messageFromServer += Encoding.ASCII.GetString(bytes, 0, bytesRec);
if (messageFromServer.IndexOf("<Stop>") > -1) break;
if (messageFromServer.Contains("<EOG>"))
{
sender.Shutdown(SocketShutdown.Both);
sender.Close();
Console.WriteLine("Sender closed.");
return;
}
}
Console.WriteLine("Message from server: {0}", messageFromServer.Replace("<Stop>",""));
messageFromServer = null;
}
}
catch (SocketException se)
{
Console.WriteLine("Sokcet Exception: {0}", se.ToString());
}
catch (ArgumentNullException ane)
{
Console.WriteLine("Argument Null Exception: {0}", ane.ToString());
}
catch (Exception ex)
{
Console.WriteLine("Unexpected excetption: {0}",ex.ToString());
}
}
public static string LocalIPAddress()
{
IPHostEntry host;
string localIP = "";
host = Dns.GetHostEntry(Dns.GetHostName());
foreach (IPAddress ip in host.AddressList)
{
if (ip.AddressFamily == AddressFamily.InterNetwork)
{
localIP = ip.ToString();
break;
}
}
return localIP;
}
如果用户输入类似“hi <EOG>
“它只发送 5 个字节并自行停止。现在我不希望发生这种情况,我希望它发送整个消息然后才自行停止。另外,如果消息包含“<EOG>
"那么接收端什么也接收不到。
我怎样才能让它发送整个消息然后才关闭?
最佳答案
我按照 jdweng 告诉我的方法解决了这个问题,并对代码进行了一些调整。如果有人需要,这里是工作代码:
服务器端:
static void Main(string[] args)
{
string messageFromClient = null;
Socket listener = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
byte[] bytes = new byte[1024];
IPAddress ipAdress = IPAddress.Parse(LocalIPAddress());
const int PORT = 13000;
IPEndPoint localEndPoint = new IPEndPoint(ipAdress, PORT);
try
{
listener.Bind(localEndPoint);
listener.Listen(10);
Console.WriteLine("Wating for a connection..");
Socket handler = listener.Accept();
Console.WriteLine("Got a connection from {0}", handler.RemoteEndPoint.ToString());
while (true)
{
while (true)
{
bytes = new byte[1024];
int bytesRec = handler.Receive(bytes);
messageFromClient += Encoding.ASCII.GetString(bytes, 0, bytesRec);
if (messageFromClient.IndexOf("<Stop>") > -1) break;
}
if (messageFromClient.Contains("<EOG>"))
{
Console.WriteLine("Text recived: {0}", messageFromClient.Replace("<Stop>", ""));
handler.Shutdown(SocketShutdown.Both);
handler.Close();
Console.WriteLine("Handler closed.");
return;
}
Console.WriteLine("Text recived: {0}", messageFromClient.Replace("<Stop>", ""));
messageFromClient = null;
string readInput = Console.ReadLine() + "<Stop>";
byte[] messageToClient = Encoding.ASCII.GetBytes(readInput);
handler.Send(messageToClient);
if (readInput.Contains("<EOG>"))
{
handler.Shutdown(SocketShutdown.Both);
handler.Close();
Console.WriteLine("Handler closed.");
return;
}
}
}
catch (SocketException se)
{
Console.WriteLine(se.ToString());
}
catch (ArgumentNullException ane)
{
Console.WriteLine(ane.ToString());
}
}
public static string LocalIPAddress()
{
IPHostEntry host;
string localIP = "";
host = Dns.GetHostEntry(Dns.GetHostName());
foreach (IPAddress ip in host.AddressList)
{
if (ip.AddressFamily == AddressFamily.InterNetwork)
{
localIP = ip.ToString();
break;
}
}
return localIP;
}
客户端:
static void Main(string[] args)
{
IPAddress ipAdress = IPAddress.Parse(LocalIPAddress());
byte[] bytes = new byte[1024];
const int PORT = 13000;
IPEndPoint remoteEP = new IPEndPoint(ipAdress, PORT);
Socket sender = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
string messageFromServer = null;
try
{
sender.Connect(remoteEP);
Console.WriteLine("Connected to {0}", sender.RemoteEndPoint.ToString());
while (true)
{
string readInput = Console.ReadLine() + "<Stop>";
byte[] messageToServer = Encoding.ASCII.GetBytes(readInput);
if (readInput.Contains("<EOG>"))
{
int bytesSentEnd = sender.Send(messageToServer);
Console.WriteLine("Sent {0} bytes to the server", bytesSentEnd);
sender.Shutdown(SocketShutdown.Both);
sender.Close();
Console.WriteLine("Sender closed.");
return;
}
int bytesSent = sender.Send(messageToServer);
Console.WriteLine("Sent {0} bytes to the server", bytesSent);
while (true)
{
int bytesRec = sender.Receive(bytes);
messageFromServer += Encoding.ASCII.GetString(bytes, 0, bytesRec);
if (messageFromServer.Contains("<EOG>"))
{
sender.Shutdown(SocketShutdown.Both);
sender.Close();
Console.WriteLine("Sender closed.");
return;
}
if (messageFromServer.IndexOf("<Stop>") > -1) break;
}
Console.WriteLine("Message from server: {0}", messageFromServer.Replace("<Stop>", ""));
messageFromServer = null;
}
}
catch (SocketException se)
{
Console.WriteLine("Sokcet Exception: {0}", se.ToString());
}
catch (ArgumentNullException ane)
{
Console.WriteLine("Argument Null Exception: {0}", ane.ToString());
}
catch (Exception ex)
{
Console.WriteLine("Unexpected excetption: {0}", ex.ToString());
}
}
public static string LocalIPAddress()
{
IPHostEntry host;
string localIP = "";
host = Dns.GetHostEntry(Dns.GetHostName());
foreach (IPAddress ip in host.AddressList)
{
if (ip.AddressFamily == AddressFamily.InterNetwork)
{
localIP = ip.ToString();
break;
}
}
return localIP;
}
希望这能以某种方式帮助某人:)
关于c# - 服务器/客户端未发送所有字节(TCP 套接字),我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/30550587/
我使用下拉菜单提供一些不同的链接,但我希望这些链接在同一选项卡中打开,而不是在新选项卡中打开。这是我找到的代码,但我对 Javascript 非常缺乏知识 var urlmenu = docume
我对 javascript 不太了解。但我需要一个垂直菜单上的下拉菜单,它是纯 JavaScript,所以我从 W3 复制/粘贴脚本:https://www.w3schools.com/howto/t
我已经坐了 4 个小时,试图让我的导航显示下 zipper 接垂直,但它继续水平显示它们。我无法弄清楚为什么会发生这种情况或如何解决它。 如果有人能告诉我我做错了什么,我将不胜感激。我有一个潜移默化的
我正在尝试创建选项卡式 Accordion 样式下拉菜单。我使用 jQuery 有一段时间了,但无法使事件状态达到 100%。 我很确定这是我搞砸的 JS。 $('.service-button').
对于那些从未访问过 Dropbox 的人,这里是链接 https://www.dropbox.com/ 查看“登录”的下拉菜单链接。我如何创建这样的下 zipper 接? 最佳答案 这是 fiddle
我正在制作一个 Liferay 主题,但我在尝试设计导航菜单的样式时遇到了很多麻烦。我已经为那些没有像这样下拉的人改变了导航链接上的经典主题悬停功能: .aui #navigation .nav li
如果您将鼠标悬停在 li 上,则会出现一个下拉菜单。如果您将指针向下移至悬停时出现的 ul,我希望链接仍然带有下划线,直到您将箭头从 ul 或链接移开。这样你就知道当菜单下拉时你悬停在哪个菜单上。 知
我有一个带有多个下拉菜单的导航栏。因此,当我单击第一个链接时,它会打开下拉菜单,但是当我单击第二个链接时,第一个下拉菜单不会关闭。 (所以如果用户点击第二个链接我想关闭下拉菜单) // main.js
我正在尝试制作一个导航下拉菜单(使用 Bootstrap 3),其中链接文本在同一行上有多个不同的对齐方式。 在下面的代码中,下拉列表 A 中的链接在 HTML 中有空格字符来对齐它们,但是空白被忽略
我希望有人能帮我解决这个 Bootstrap 问题,因为我很困惑。 有人要求我在底部垂直对齐图像和其中包含图像的链接。 我面临的问题是他们还希望链接在链接/图像组合上具有 pull-right,这会杀
我正在构建一个 Rails 应用程序,并希望指向我的类的每个实例的“显示”页面的链接显示在“索引”页面的下拉列表中。我目前正在使用带有 options_from_collection_for_sele
我有以下 Bootstrap3 导航菜单 ( fiddle here )。我想设置“突出显示”项及其子链接与下拉列表 1 和 2 链接不同的链接文本(和悬停)的样式。我还希望能够以不同于 Highli
我对导航栏中的下拉菜单有疑问。对于普通的导航链接(无下拉菜单),我将菜单文本放在 H3 中,但是当我尝试对下 zipper 接执行相同操作时,箭头不在标题旁边,而是在标题下方。我决定用 span 替换
我是一名优秀的程序员,十分优秀!