connect()

描述

连线到指定的 IP 位址与埠编号。除了使用 IP 位址与埠编号作为指定伺服器的方法，还可以使用网域名称(Domain Name)。

语法


client.connect(ip, port)
client.connect(URL, port)


参数

ip：要连线的伺服器的 IP 位址(大小为 4 位元组的阵列)
URL：要连线的伺服器的网域名称，型态为 string (例：”www.86duino.com”)
port：要连线的伺服器的埠编号，型态为 int

回传

boolean：如果连线成功回传 true，反之回传 false

范例

#include <WiFi.h>

char ssid[] = "myNetwork";          // 无线网路的 SSID
char pass[] = "myPassword";   // WPA 的密码

int status = WL_IDLE_STATUS;
char servername[]="google.com";  // Google 的网域名称

WiFiClient client;

void setup() {
  Serial.begin(9600);
  Serial.println("Attempting to connect to WPA network...");
  Serial.print("SSID: ");
  Serial.println(ssid);

  status = WiFi.begin(ssid, pass);
  if ( status != WL_CONNECTED) { 
    Serial.println("Couldn't get a wifi connection");
    while(true);
  } 
  else {
    Serial.println("Connected to wifi");
    Serial.println("\nStarting connection...");
    // 如果成功连线，透过序列埠印出讯息
    if (client.connect(servername, 80)) {
      Serial.println("connected");
      // 传送 HTTP 封包
      client.println("GET /search?q=arduino HTTP/1.0");
      client.println();
    }
  }
}

void loop() {

}

函式库参考主页面

The text of the 86Duino reference is a modification of the Arduino reference, and is licensed under a Creative Commons Attribution-ShareAlike 3.0 License. Code samples in the reference are released into the public domain.