wemos d1（作为客户端）和网络服务器（在arduino或wemos d1上）通过LAN [关闭]之间的通信

问题描述：

So I wanted to do some home automation, so I assigned an esp8266 to each of the rooms of my house, all of them are connected to a single wifi as clients with static ip addresses, so I can control my lights by sending get request to each esps IP, so my problem is that I want to make a webserver running on an arduino or esp8266 so that it could save the states of all the lights of the house. I can easily do this on wammp where php will handle all the get requests made by the client esps and save the data in a database, but can a webserver(on esp or arduino) handle those get requests and save the states in some memory.

所以我想做一些家庭自动化，所以我为我家的每个房间分配了一个esp8266，所有它们作为具有静态IP地址的客户端连接到单个wifi，所以我可以通过向每个esps IP发送get请求来控制我的灯，所以我的问题是我想在arduino或esp8266上运行webserver以便它可以保存房子所有灯的状态。我可以很容易地在wammp上执行此操作，其中php将处理客户端esps发出的所有get请求并将数据保存在数据库中，但是web服务器（在esp或arduino上）可以处理这些获取请求并将状态保存在某些内存中。 p> div>

答

Yes, you can run a webserver with Arduino. This is the example from https://www.arduino.cc/en/Tutorial/WebServer

/*
  Web Server

 A simple web server that shows the value of the analog input pins.
 using an Arduino Wiznet Ethernet shield.

 Circuit:
 * Ethernet shield attached to pins 10, 11, 12, 13
 * Analog inputs attached to pins A0 through A5 (optional)

 created 18 Dec 2009
 by David A. Mellis
 modified 9 Apr 2012
 by Tom Igoe
 modified 02 Sept 2015
 by Arturo Guadalupi

 */

#include <SPI.h>
#include <Ethernet.h>

// Enter a MAC address and IP address for your controller below.
// The IP address will be dependent on your local network:
byte mac[] = {
  0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED
};
IPAddress ip(192, 168, 1, 177);

// Initialize the Ethernet server library
// with the IP address and port you want to use
// (port 80 is default for HTTP):
EthernetServer server(80);

void setup() {
  // Open serial communications and wait for port to open:
  Serial.begin(9600);
  while (!Serial) {
    ; // wait for serial port to connect. Needed for native USB port only
  }


  // start the Ethernet connection and the server:
  Ethernet.begin(mac, ip);
  server.begin();
  Serial.print("server is at ");
  Serial.println(Ethernet.localIP());
}


void loop() {
  // listen for incoming clients
  EthernetClient client = server.available();
  if (client) {
    Serial.println("new client");
    // an http request ends with a blank line
    boolean currentLineIsBlank = true;
    while (client.connected()) {
      if (client.available()) {
        char c = client.read();
        Serial.write(c);
        // if you've gotten to the end of the line (received a newline
        // character) and the line is blank, the http request has ended,
        // so you can send a reply
        if (c == '
' && currentLineIsBlank) {
          // send a standard http response header
          client.println("HTTP/1.1 200 OK");
          client.println("Content-Type: text/html");
          client.println("Connection: close");  // the connection will be closed after completion of the response
          client.println("Refresh: 5");  // refresh the page automatically every 5 sec
          client.println();
          client.println("<!DOCTYPE HTML>");
          client.println("<html>");
          // output the value of each analog input pin
          for (int analogChannel = 0; analogChannel < 6; analogChannel++) {
            int sensorReading = analogRead(analogChannel);
            client.print("analog input ");
            client.print(analogChannel);
            client.print(" is ");
            client.print(sensorReading);
            client.println("<br />");
          }
          client.println("</html>");
          break;
        }
        if (c == '
') {
          // you're starting a new line
          currentLineIsBlank = true;
        } else if (c != '') {
          // you've gotten a character on the current line
          currentLineIsBlank = false;
        }
      }
    }
    // give the web browser time to receive the data
    delay(1);
    // close the connection:
    client.stop();
    Serial.println("client disconnected");
  }
}

Save the states in a global variable and initialize them in setup(). When a client sends its request, it has to send its id or ip and the server can response with the state.

wemos d1（作为客户端）和网络服务器（在arduino或wemos d1上）通过LAN [关闭]之间的通信

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