微信硬件平台（八） 1 esp8266从自己的服务器获取token

从txt获取token

#include <ESP8266WiFi.h>

#define host_token  "www.dongvdong.top"

#define httpPort     80

#define ssid      "dongdong"

#define password  "dongdong"

void setup() {

  Serial.begin(115200);

  delay(10);

  Serial.println();

  Serial.println();

  Serial.print("Connecting to ");

  Serial.println(ssid);

  WiFi.begin(ssid, password);

  while (WiFi.status() != WL_CONNECTED) {

    delay(500);

    Serial.print(".");

  }

  Serial.println("");

  Serial.println("WiFi connected");

  Serial.println("IP address: ");

  Serial.println(WiFi.localIP());

}

/*

功能：  1从自己的服务器上txt获取微信token

输入：  无

输出：  token

*/

//

//{"errcode":42001,"errmsg":"access_token expired"}

String RequestWeixinToken(){

  Serial.println("/**************************************************/");

  Serial.println("1 request token! ");

  Serial.print("connecting to ");

  Serial.println(host_token);

  Serial.println();

  WiFiClient client;

  if (!client.connect(host_token, httpPort)) { //works!

    Serial.println("connection failed");

    return "fail";

  }

  String str = "GET /WexinToken/token.txt \r\n\r\n\r\n";   //  GET 请求网页服务器默认文件夹下的文件。 根据实际路径设置

  client.print(str);

  delay(600);

    String token;

  if (client.available())

  {

     token = client.readStringUntil('\r');  // 读一行

     Serial.println(token);  //串口打印出来

  }

  client.stop();

  Serial.println();

  Serial.println("closing connection \n");

if(token.length()>10){

  return token;}

  else{

     return "fail";

    }

}

void loop() {

  delay(10000);

  String token= RequestWeixinToken(); // 得到用户ID组

}