Arduino ESP32 获取网络数据(HTTP PATCH方式)
Posted perseverance52
tags:
篇首语:本文由小常识网(cha138.com)小编为大家整理,主要介绍了Arduino ESP32 获取网络数据(HTTP PATCH方式)相关的知识,希望对你有一定的参考价值。
Arduino ESP32 获取网络数据(HTTP PATCH方式)
本实例通过PATCH方式请求获取网络数据。
- 不需要要额外库,全部使用自带固件的库
- 访问对象:http://quan.suning.com/getSysTime.do
实例代码
/**
* ESP32 HTTP GET方式获取网络数据
*
*/
#include <Arduino.h>
#include <WiFi.h>
#include <HTTPClient.h>
//填写WIFI入网信息
const char* ssid = "MERCURY_D268G"; // WIFI账户
const char* password = "pba5ayzk"; // WIFI密码
void setup() {
Serial.begin(115200);
Serial.println();
Serial.print("Attempting to connect to SSID: ");
Serial.println(ssid);
WiFi.begin(ssid, password);
for(uint8_t t = 4; t > 0; t--) {
Serial.printf("[SETUP] WAIT %d...\\n", t);
Serial.flush();
delay(1000);
}
while (WiFi.status() != WL_CONNECTED) {
Serial.print(".");
// wait 1 second for re-trying
delay(1000);
}
/* 开始访问指定服务器地址,获取数据 */
Serial.print("Connected to ");
Serial.println(ssid);
HTTPClient http;//创建 WiFiClient 实例化对象
Serial.print("[HTTP] begin...\\n");
// configure traged server and url
http.begin("http://quan.suning.com/getSysTime.do"); //HTTP
Serial.print("[HTTP] PATCH...\\n");
// start connection and send HTTP header
int httpCode = http.PATCH("http://quan.suning.com/getSysTime.do");//PATCH请求
// httpCode will be negative on error
if(httpCode > 0) {
// HTTP header has been send and Server response header has been handled
Serial.printf("[HTTP] GET... code: %d\\n", httpCode);
// file found at server
if(httpCode == HTTP_CODE_OK) {
String payload = http.getString();
Serial.println(payload);
}
} else {
Serial.printf("[HTTP] GET... failed, error: %s\\n", http.errorToString(httpCode).c_str());
}
http.end();
}
void loop() {
delay(5000);
}
- 串口打印网络获取的数据
以上是关于Arduino ESP32 获取网络数据(HTTP PATCH方式)的主要内容,如果未能解决你的问题,请参考以下文章
Arduino ESP32 获取网络数据(HTTP POST方式)
Arduino ESP32 获取网络数据(HTTP PATCH方式)
Arduino ESP32 通过getString方法获取网络时间和气象数据