vb.net網(wǎng) vbnet網(wǎng)絡(luò)傳輸數(shù)據(jù)
如何創(chuàng)建一個VB.NET版的網(wǎng)站
應(yīng)該說是asp.net(vb.net)的網(wǎng)站,后臺程序是用vb.net寫的。
十余年的鄂溫克網(wǎng)站建設(shè)經(jīng)驗，針對設(shè)計、前端、開發(fā)、售后、文案、推廣等六對一服務(wù)，響應(yīng)快，48小時及時工作處理。成都全網(wǎng)營銷的優(yōu)勢是能夠根據(jù)用戶設(shè)備顯示端的尺寸不同，自動調(diào)整鄂溫克建站的顯示方式，使網(wǎng)站能夠適用不同顯示終端，在瀏覽器中調(diào)整網(wǎng)站的寬度，無論在任何一種瀏覽器上瀏覽網(wǎng)站，都能展現(xiàn)優(yōu)雅布局與設(shè)計，從而大程度地提升瀏覽體驗。成都創(chuàng)新互聯(lián)從事“鄂溫克網(wǎng)站設(shè)計”,“鄂溫克網(wǎng)站推廣”以來，每個客戶項目都認真落實執(zhí)行。
1、安裝vs.net軟件(選默認語言是vb.net)，安裝iis服務(wù)器,安裝數(shù)據(jù)庫
2、運行vs.net軟件,新建asp.net網(wǎng)站,寫好網(wǎng)頁。需要具備的知識點有html+div、javascript、jqurey、AJAX、vb.net、數(shù)據(jù)庫的操作等。
3、在網(wǎng)上購買一個網(wǎng)站虛擬空間，購買一個域名,發(fā)布自已做好的網(wǎng)站上去就OK了
用vb.net實現(xiàn)網(wǎng)絡(luò)通信
用 vb.net socket通信
Dim th As Threading.Thread
2 Dim tcpl As System.Net.Sockets.TcpListener
3
4 Private Sub Form1_Load()Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
5 th = New System.Threading.Thread(New System.Threading.ThreadStart(AddressOf MyListen))
6 th.Start()
7 End Sub
8
9 Public Sub SendMessage()Sub SendMessage(ByVal IP As String, ByVal SendMsg As String)
10 Try
11 If IP "" Then
12 Dim tcpc As New System.Net.Sockets.TcpClient(IP, 5656)
13 Dim tcpStream As Net.Sockets.NetworkStream = tcpc.GetStream
14 Dim reqStream As New IO.StreamWriter(tcpStream)
15 reqStream.Write(SendMsg)
16 reqStream.Flush()
17 tcpStream.Close()
18 tcpc.Close()
19 End If
20 Catch ex As Exception
21 MsgBox(ex.Message.ToString)
22 End Try
23 End Sub
24 Private Sub MyListen()Sub MyListen()
25 Try
26 Dim ipAddress As System.Net.IPAddress = System.Net.Dns.Resolve(System.Net.Dns.GetHostName).AddressList(0)
27 tcpl = New System.Net.Sockets.TcpListener(ipAddress, 5656)
28 tcpl.Start()
29 While True
30 Dim s As System.Net.Sockets.Socket = tcpl.AcceptSocket()
31 Dim MyBuffer(1024) As Byte
32 Dim i As Integer
33 i = s.Receive(MyBuffer)
34 If i 0 Then
35 Dim lstrRec As String
36 Dim j As Integer
37 For j = 0 To i - 1
38 TextBox1.Text += Chr(MyBuffer(j)) ","
39 Next
40 End If
41 End While
42 Catch ex As Exception
43 MsgBox(ex.Message.ToString)
44 End Try
45 End Sub
46
47 Private Sub Button1_Click()Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
48 SendMessage("192.168.0.61", TextBox2.Text)
49 End Sub
VB.NET如何判斷電腦是否已連接到網(wǎng)絡(luò)？
Microsoft.VisualBasic.Devices.Network.IsAvailable As Boolean
生成實例后可以通過此屬性來獲取是否聯(lián)網(wǎng)的值，True代表已聯(lián)網(wǎng)，F(xiàn)alse代表沒有聯(lián)網(wǎng)
Microsoft.VisualBasic.Devices.Network.NetworkAvailabilityChanged(ByVal Object, ByVal Microsoft.VisualBasic.Devices.NetworkAvailableEventArgs)
該事件是在電腦斷開/連上互聯(lián)網(wǎng)是引發(fā)的
其中：
e.IsNetworkAvailable
的功能同Microsoft.VisualBasic.Devices.Network.IsAvailable
實例:
Dim?netListener?As?New?Microsoft.VisualBasic.Devices.Network?'生成實例
If?netListener.IsAvailable?=?True?Then
MsgBox("已聯(lián)網(wǎng)")
Else
MsgBox("未聯(lián)網(wǎng)")
End?If
NetworkAvailabilityChanged實例：
WithEvents?netListener?As?New?Microsoft.VisualBasic.Devices.Network?'生成實例
Private?Sub?OnNetworkChanged(ByVal?Object,?ByVal?Microsoft.VisualBasic.Devices.NetworkAvailableEventArgs)Handles?netListener.NetworkAvailabilityChanged
If?e.IsNetworkAvailable?=?True?Then
MsgBox("已聯(lián)網(wǎng)")
Else
MsgBox("未聯(lián)網(wǎng)")
End?If
End?Sub
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