在Netduino上做一個httpserver並不是一件困難的事情，你只需要花點時間而已。
創建一個新的netduino plus的應用，不過你需要確定你選擇的是netduino plus這個工程，那麼很快你就可以做出一個web服務應用了。
在你的Main函數裡，你可以先放下一下代碼：
[csharp] OutputPort led = new OutputPort(Pins.ONBOARD_LED, false);
OutputPort led = new OutputPort(Pins.ONBOARD_LED, false);
這段代碼告訴我們，我們需要先聲明一個輸出端口，而且這個端口使用的是板子上的led燈。
下一步我們需要啟動netduino的網絡監聽，端口80是一個默認的web服務端口，所以我們將使用80端口作為我們的http服務監聽端口，當然了，你也可以使用別的端口作為你的httpserver的端口，比如說8080 那也行呀，不過這麼做的話你的防火牆不放過你的80端口那你別怪到netduino上，要怪就怪你的網絡和網管，聽話點，用個80就行了，不必特立獨行，如果你還不是很能夠把握住的話，對麼？
[html] // configure the port # (the standard web server port is 80)
int port = 80;
// configure the port # (the standard web server port is 80)
int port = 80;
在這個例子裡，插入5秒的等待延時，這是讓netduino有足夠的時間去獲得動態分配的ip地址。
[csharp] Thread.Sleep(5000);
Thread.Sleep(5000);
接著我們需要將所獲得的ip地址通過debug的形式顯示出來，當然，這需要運行在你的vs2010的debug模式下，查看你的調試窗口的內容，debug.print會讓調試結果顯示出來，
否則你沒法去訪問你的板子，因為你不知道netduino從你家的路由器裡獲得了什麼地址。
[csharp] // display the IP address
Microsoft.SPOT.Net.NetworkInformation.NetworkInterface
networkInterface =
Microsoft.SPOT.Net.NetworkInformation.NetworkInterface.
GetAllNetworkInterfaces()[0];
Debug.Print("my ip address: " + networkInterface.IPAddress.ToString());
// display the IP address
Microsoft.SPOT.Net.NetworkInformation.NetworkInterface
networkInterface =
Microsoft.SPOT.Net.NetworkInformation.NetworkInterface.
GetAllNetworkInterfaces()[0];
Debug.Print("my ip address: " + networkInterface.IPAddress.ToString());好了，你已經獲得了ip地址了，你可以去啟動一個socket去監聽這個ip地址，並等待你的浏覽器訪問請求了
[csharp] / create a socket to listen for incoming connections
Socket listenerSocket = new Socket(AddressFamily.InterNetwork,
SocketType.Stream,
ProtocolType.Tcp);
IPEndPoint listenerEndPoint = new IPEndPoint(IPAddress.Any, port);
// bind to the listening socket
listenerSocket.Bind(listenerEndPoint);
// and start listening for incoming connections
listenerSocket.Listen(1);
// create a socket to listen for incoming connections
Socket listenerSocket = new Socket(AddressFamily.InterNetwork,
SocketType.Stream,
ProtocolType.Tcp);
IPEndPoint listenerEndPoint = new IPEndPoint(IPAddress.Any, port);
// bind to the listening socket
listenerSocket.Bind(listenerEndPoint);
// and start listening for incoming connections
listenerSocket.Listen(1);在代碼裡我們看到我們定義了一個listenerSocket的socket對象，然後根據listenerEndPoint的地址，listenerSocket綁定了netduino開發板上的listenerEndPoint地址，然後兵啟動了它。現在netduino plus已經監聽請求了，我們需要創建一個死循環，在那裡你講看到通過你的浏覽器進入的請求。
[csharp] // listen for and process incoming requests
while (true)
{
}
// listen for and process incoming requests
while (true)
{
}在這個循環裡，你將獲得從客戶端訪問來的socket請求。
[csharp] // wait for a client to connect
Socket clientSocket = listenerSocket.Accept();
// wait for a client to connect
Socket clientSocket = listenerSocket.Accept();然後，為了讓所有的請求數據都順利達到，你需要等待5秒的時間，
[csharp] // wait for data to arrive
bool dataReady = clientSocket.Poll(5000000, SelectMode.SelectRead);
// then you have a good connection.
if (dataReady && clientSocket.Available > 0)
{
}
// wait for data to arrive
bool dataReady = clientSocket.Poll(5000000, SelectMode.SelectRead);
// then you have a good connection.
if (dataReady && clientSocket.Available > 0)
{
}當你確定網絡請求已經完成，你就可以開始去分析這些來的請求了，先把收到的請求放到一個buffer裡吧
[csharp] byte[] buffer = new byte[clientSocket.Available];
int bytesRead = clientSocket.Receive(buffer);
byte[] buffer = new byte[clientSocket.Available];
int bytesRead = clientSocket.Receive(buffer);就快完了，知道你們都看膩了，下一步我們要分析請求的參數，並將板子上的led燈的狀態給修改過來。
[csharp] view plaincopyprint?if (request.IndexOf("ON") >= 0)
{
led.Write(true);
}
else if (request.IndexOf("OFF") >= 0)
{
led.Write(false);
}
if (request.IndexOf("ON") >= 0)
{
led.Write(true);
}
else if (request.IndexOf("OFF") >= 0)
{
led.Write(false);
}現在你已經控制了板子上的led燈的開還是關，把led燈的開關狀態給寫入到字符串裡，並通過http協議返回給請求的浏覽器，讓你及時知道板子是否關燈或者是開燈了
string statusText = "LED is " + (led.Read() ? "ON" : "OFF") + ".";
[csharp] string response =
"HTTP/1.1 200 OK\r\n" +
"Content-Type: text/html; charset=utf-8\r\n\r\n" +
"<html><head><title>Netduino Plus LED Sample</title></head>" +
"<body>" + statusText + "</body></html>";
string response =
"HTTP/1.1 200 OK\r\n" +
"Content-Type: text/html; charset=utf-8\r\n\r\n" +
"<html><head><title>Netduino Plus LED Sample</title></head>" +
"<body>" + statusText + "</body></html>";當然了，你還需要通過剛才的客戶端的socket將數據返回回去,
clientSocket.Send(System.Text.Encoding.UTF8.GetBytes(response));
}
當然了，做完了這些你得把你請求的socket關閉了吧。
[csharp] // important: close the client socket
clientSocket.Close();
// important: close the client socket
clientSocket.Close();好了不來虛的，直接上代碼吧
[csharp] using System;
using Microsoft.SPOT;
using Microsoft.SPOT.Hardware;
using SecretLabs.NETMF.Hardware.NetduinoPlus;
using System.Threading;
using System.Net.Sockets;
using System.Net;
namespace SocketServerSample
{
public class program
{
public static void Main()
{
// write your code here
// setup the LED and turn it off by default
OutputPort led = new OutputPort(Pins.ONBOARD_LED, false);
// configure the port # (the standard web server port is 80)
int port = 80;
// wait a few seconds for the Netduino Plus to get a network address.
Thread.Sleep(5000);
//Connecting to the Internet 69
// display the IP address
Microsoft.SPOT.Net.NetworkInformation.NetworkInterface networkInterface = Microsoft.SPOT.Net.NetworkInformation.NetworkInterface.GetAllNetworkInterfaces()[0];
Debug.Print("my ip address: " + networkInterface.IPAddress.ToString());
// create a socket to listen for incoming connections
Socket listenerSocket = new Socket(AddressFamily.InterNetwork,
SocketType.Stream, ProtocolType.Tcp);
IPEndPoint listenerEndPoint = new IPEndPoint(IPAddress.Any, port);
// bind to the listening socket
listenerSocket.Bind(listenerEndPoint);
// and start listening for incoming connections
listenerSocket.Listen(1);
// listen for and process incoming requests
while (true)
{
// wait for a client to connect
Socket clientSocket = listenerSocket.Accept();
// wait for data to arrive
bool dataReady = clientSocket.Poll(5000000, SelectMode.SelectRead);
// if dataReady is true and there are bytes available to read,
// then you have a good connection.
if (dataReady && clientSocket.Available > 0)
{
byte[] buffer = new byte[clientSocket.Available];
int bytesRead = clientSocket.Receive(buffer);
string request = new string(System.Text.Encoding.UTF8.GetChars(buffer));
if (request.IndexOf("ON") >= 0)
{
led.Write(true);
}
else if (request.IndexOf("OFF") >= 0)
{
led.Write(false);
}
string statusText = "LED is " + (led.Read() ? "ON" : "OFF") + ".";
//70 Getting Started with Netduino
// return a message to the client letting it
// know if the LED is now on or off.
string response =
"HTTP/1.1 200 OK\r\n" +
"Content-Type: text/html; charset=utf-8\r\n\r\n" +
"<html><head><title>Netduino Plus LED Sample</title></head>" +
"<body>" + statusText + "</body></html>";
clientSocket.Send(System.Text.Encoding.UTF8.GetBytes(response));
}
// important: close the client socket
clientSocket.Close();
}
}
}
}
using System;
using Microsoft.SPOT;
using Microsoft.SPOT.Hardware;
using SecretLabs.NETMF.Hardware.NetduinoPlus;
using System.Threading;
using System.Net.Sockets;
using System.Net;
namespace SocketServerSample
{
public class program
{
public static void Main()
{
// write your code here
// setup the LED and turn it off by default
OutputPort led = new OutputPort(Pins.ONBOARD_LED, false);
// configure the port # (the standard web server port is 80)
int port = 80;
// wait a few seconds for the Netduino Plus to get a network address.
Thread.Sleep(5000);
//Connecting to the Internet 69
// display the IP address
Microsoft.SPOT.Net.NetworkInformation.NetworkInterface networkInterface = Microsoft.SPOT.Net.NetworkInformation.NetworkInterface.GetAllNetworkInterfaces()[0];
Debug.Print("my ip address: " + networkInterface.IPAddress.ToString());
// create a socket to listen for incoming connections
Socket listenerSocket = new Socket(AddressFamily.InterNetwork,
SocketType.Stream, ProtocolType.Tcp);
IPEndPoint listenerEndPoint = new IPEndPoint(IPAddress.Any, port);
// bind to the listening socket
listenerSocket.Bind(listenerEndPoint);
// and start listening for incoming connections
listenerSocket.Listen(1);
// listen for and process incoming requests
while (true)
{
// wait for a client to connect
Socket clientSocket = listenerSocket.Accept();
// wait for data to arrive
bool dataReady = clientSocket.Poll(5000000, SelectMode.SelectRead);
// if dataReady is true and there are bytes available to read,
// then you have a good connection.
if (dataReady && clientSocket.Available > 0)
{
byte[] buffer = new byte[clientSocket.Available];
int bytesRead = clientSocket.Receive(buffer);
string request = new string(System.Text.Encoding.UTF8.GetChars(buffer));
if (request.IndexOf("ON") >= 0)
{
led.Write(true);
}
else if (request.IndexOf("OFF") >= 0)
{
led.Write(false);
}
string statusText = "LED is " + (led.Read() ? "ON" : "OFF") + ".";
//70 Getting Started with Netduino
// return a message to the client letting it
// know if the LED is now on or off.
string response =
"HTTP/1.1 200 OK\r\n" +
"Content-Type: text/html; charset=utf-8\r\n\r\n" +
"<html><head><title>Netduino Plus LED Sample</title></head>" +
"<body>" + statusText + "</body></html>";
clientSocket.Send(System.Text.Encoding.UTF8.GetBytes(response));
}
// important: close the client socket
clientSocket.Close();
}
}
}
}
怎麼樣，你成功了嗎？？如果沒有開發板你可以在我那買一個，當然，沒有開發板在vs2010的模擬器上也是可以跑的，去嘗試一下吧
你會感覺好像開發硬件和跟你平時寫一個普通的c#代碼沒啥區別，所以用netduino板子開發硬件可以抹平你和硬件之間的距離。netduino的世界很精彩，期待您的參與。
忘記了，做個廣告吧，為我的爛淘寶店，這是我開始嘗試電商的一個通道，也希望能找到合適你用的東西。
