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Home Backend Development PHP Tutorial PHP 和 VB SOCKET 通信问题 请各位看下

PHP 和 VB SOCKET 通信问题 请各位看下

Jun 23, 2016 pm 02:24 PM

本帖最后由 u012436313 于 2013-10-14 13:13:58 编辑



<?php$server = '127.0.0.1';$port = 8888;$socket = socket_create(AF_INET, SOCK_STREAM, SOL_TCP);if($socket < 0) {	echo socket_strerror($socket);} else {	echo '成功<br />';}$result = @socket_connect($socket, $server, $port);$buf = '你好啊我';$len = strlen($buf);socket_send($socket, $buf, $len, 0);socket_close($socket);?>
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Option ExplicitPrivate Sub Form_Load()    tcpServer.LocalPort = 8888    tcpServer.Listen    lblstate.Caption = "目前没有客户端连入!"End SubPrivate Sub tcpServer_ConnectionRequest(ByVal requestID As Long)    If tcpServer.State <> sckClosed Then tcpServer.Close    tcpServer.Accept requestID    lblstate.Caption = "有客户端连入本机! IP:" & tcpServer.RemoteHostIPEnd SubPrivate Sub tcpServer_DataArrival(ByVal bytesTotal As Long)    Dim strData As String    tcpServer.GetData strData    txtOutput.Text = strData & vbCrLf & txtOutput.TextEnd SubPrivate Sub txtSendData_KeyPress(KeyAscii As Integer)    If KeyAscii = 13 Then        If tcpServer.State = sckConnected Then            tcpServer.SendData "服务器说:" & txtSendData.Text            txtOutput.Text = "服务器说" & txtSendData.Text & vbCrLf & txtOutput.Text            txtSendData.Text = ""        Else            MsgBox "目前没有连接的客户端!"        End If    End IfEnd Sub
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第一次正常 但是 第二次刷新 PHP页面的时候出现 如下错误
Warning: socket_send() [function.socket-send]: unable to write to socket [0]: 由于套接字没有连接并且(当使用一个 sendto 调用发送数据报套接字时)没有提供地址,发送或接收数据的请求没有被接受。 in E:\wamp\www\test\test3.php on line 19
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回复讨论(解决方案)

把 @socket_connect 取消@看看是否有警告信息

把 @socket_connect 取消@看看是否有警告信息

Warning: socket_connect() [function.socket-connect]: unable to connect [0]: 由于目标计算机积极拒绝,无法连接。 in E:\wamp\www\test\test3.php on line 14Warning: socket_send() [function.socket-send]: unable to write to socket [0]: 由于套接字没有连接并且(当使用一个 sendto 调用发送数据报套接字时)没有提供地址,发送或接收数据的请求没有被接受。 in E:\wamp\www\test\test3.php on line 19
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估计是已经连接过一次了

Y
VB那边应该有关闭连接的动作,不懂VB,你自己看看

VB那边的问题。他只接受一个连接。

VB那边的问题。他只接受一个连接。

我用VB 和 VB 时间通信 连接一次就可以了

但是为什么用PHP 和 VB 通信 为什么会增多连接? 不能原连接基础上 继续发送数据吗

VB->VB creat, connect只有一次
PHP 每刷新就creat一次,所以是很多个连接

VB->VB creat, connect只有一次
PHP 每刷新就creat一次,所以是很多个连接

唉不知道这个问题如何解决

我只是想做个功能 PHP 发送后 VB 的客户端方面接收数据 并把数据保存到 TXT 中

其他都很简单 就这个连接麻烦 解决不了

刷新页面不行吧,你刷新一次等一服务器重新执行一次,应该是在后台保持长连接的


VB->VB creat, connect只有一次
PHP 每刷新就creat一次,所以是很多个连接

唉不知道这个问题如何解决

我只是想做个功能 PHP 发送后 VB 的客户端方面接收数据 并把数据保存到 TXT 中

其他都很简单 就这个连接麻烦 解决不了
这是你的设计架构。你要解决的现实问题是什么?聊天?办公?


VB->VB creat, connect只有一次
PHP 每刷新就creat一次,所以是很多个连接

唉不知道这个问题如何解决

我只是想做个功能 PHP 发送后 VB 的客户端方面接收数据 并把数据保存到 TXT 中

其他都很简单 就这个连接麻烦 解决不了
VB接收完就close连接



VB->VB creat, connect只有一次
PHP 每刷新就creat一次,所以是很多个连接

唉不知道这个问题如何解决

我只是想做个功能 PHP 发送后 VB 的客户端方面接收数据 并把数据保存到 TXT 中

其他都很简单 就这个连接麻烦 解决不了
VB接收完就close连接

Private Sub Form_Load()    winsock1.LocalPort = 8888    winsock1.ListenEnd SubPrivate Sub winsock1_ConnectionRequest(ByVal requestID As Long)    If winsock1.State <> sckClosed Then winsock1.Close        winsock1.Accept requestID        Label1.Caption = "有客户端接入本机!IP:为" & winsock1.RemoteHostIPEnd SubPrivate Sub winsock1_DataArrival(ByVal bytesTotal As Long)    Dim strData As String    winsock1.GetData strData    Text1.Text = strData    winsock1.CloseEnd Sub
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我已经增加了 但是还是不行

你自己看看VB书吧,感觉你是把整个socket都close了,应该只是关闭连接
socket关闭了,就是连bind/accept都废了

你自己看看VB书吧,感觉你是把整个socket都close了,应该只是关闭连接
socket关闭了,就是连bind/accept都废了

今天也在找相关书籍 但是一直没找到 唉

你自己看看VB书吧,感觉你是把整个socket都close了,应该只是关闭连接
socket关闭了,就是连bind/accept都废了

我的问题解决了

在 winsock1.Close 下面加了  重新监听 就行了winsock1.Listen
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