esp8266获取网页输出的信息
时间: 2023-10-08 20:13:25 浏览: 148
要获取网页输出的信息,您可以使用ESP8266的WiFiClient来连接到Web服务器,并使用GET或POST请求来获取所需的信息。以下是一个简单的示例代码段:
```c++
#include <ESP8266WiFi.h>
const char* ssid = "your_SSID";
const char* password = "your_PASSWORD";
const char* host = "your_host";
const int port = 80;
void setup() {
Serial.begin(115200);
delay(10);
// 连接WiFi网络
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());
}
void loop() {
WiFiClient client;
// 连接到Web服务器
if (!client.connect(host, port)) {
Serial.println("connection failed");
return;
}
// 发送GET请求
client.println("GET /path/to/your/page HTTP/1.1");
client.println("Host: your_host");
client.println("Connection: close");
client.println();
// 等待服务器响应
while (!client.available()) {
delay(10);
}
// 读取响应数据
while (client.available()) {
char c = client.read();
Serial.write(c);
}
// 断开连接
client.stop();
// 等待5秒钟
delay(5000);
}
```
在上面的代码中,您需要将 `your_SSID` 和 `your_PASSWORD` 替换为您的WiFi网络的名称和密码,将 `your_host` 替换为您要连接的Web服务器的主机名或IP地址,将 `/path/to/your/page` 替换为您要获取的页面的路径。当ESP8266连接到WiFi网络并连接到Web服务器后,它将发送一个GET请求并等待服务器响应。一旦收到响应,它将从WiFiClient中读取响应数据并在串行监视器上打印出来。
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