{"id":2002,"date":"2025-09-24T10:20:00","date_gmt":"2025-09-24T02:20:00","guid":{"rendered":"https:\/\/www.640629.xyz\/?p=2002"},"modified":"2025-09-24T12:02:36","modified_gmt":"2025-09-24T04:02:36","slug":"wifi%e7%b7%b4%e7%bf%92%ef%bc%9a%e7%86%b1%e9%bb%9e%e6%a8%a1%e5%bc%8f-%e9%81%a0%e7%ab%af%e6%8e%a7%e5%88%b6esp32ajax%e5%8d%b3%e6%99%82%e6%9b%b4%e6%96%b0","status":"publish","type":"post","link":"https:\/\/www.640629.xyz\/?p=2002","title":{"rendered":"WiFi\u7df4\u7fd2\uff1a\u71b1\u9ede\u6a21\u5f0f\u2014\u9060\u7aef\u63a7\u5236ESP32+AJAX\u5373\u6642\u66f4\u65b0"},"content":{"rendered":"\n

\u4e0a\u9031\u7bc4\u4f8b\u7a0b\u5f0f\uff1a<\/p>\n\n\n\n

\/\/ \u4fdd\u8b77\u6a19\u982d\u6a94\uff0c\u907f\u514d\u540c\u4e00\u500b .h \u6a19\u982d\u6a94\u88ab\u91cd\u8907\u5f15\u7528\n#ifndef WIFI_SETUP_H\n#define WIFI_SETUP_H\n\n\/\/-------------------------------------------------------------------------------\n#include <WiFi.h>                   \/\/ \u5f15\u7528WiFi\u51fd\u5f0f\u5eab\nconst char *ssid=\"SSID\";            \/\/ \u71b1\u9ede\u540d\u7a31\nconst char *password=\"\u5bc6\u78bc\";        \/\/ \u71b1\u9ede\u5bc6\u78bc\n\/\/-------------------------------------------------------------------------------\ninline void startAP()  \/\/ \u555f\u7528\u71b1\u9ede\n{\n  \/*\n  IPAddress local_ip(192,168,31,31);   \/\/ \u8a2d\u5b9a\u71b1\u9ede\u7684IP\u4f4d\u5740\n  IPAddress gateway(192,168,31,2);     \/\/ \u8a2d\u5b9a\u71b1\u9ede\u7684\u9598\u9053\u4f4d\u5740\n  IPAddress subnet(255,255,255,0);     \/\/ \u8a2d\u5b9a\u71b1\u9ede\u7684\u5b50\u7db2\u8def\u906e\u7f69\u4f4d\u5740\n  WiFi.softAPConfig(local_ip, gateway, subnet); \/\/ \u8a2d\u5b9a\u71b1\u9ede\u53c3\u6578(\u672a\u8a2d\u5b9a\u6642\uff0c\u71b1\u9edeIP\u4f4d\u5740\u9810\u8a2d\u70ba192.168.4.1)\n  *\/\n  while (!WiFi.softAP(ssid, password))  \/\/ \u82e5\u71b1\u9ede\u5c1a\u672a\u555f\u52d5\uff0c\u5247\u6bcf0.5\u79d2\u5370\u51fa\u4e00\u500b\u9ede\n  {\n    delay(500);\n    Serial.print(\".\");\n  }\n  Serial.println(\"\\n----------------------------------\");\n  Serial.println(\"\u71b1\u9ede\u555f\u52d5\u6210\u529f\");\n  Serial.print(\"IP Address: \");\n  Serial.println(WiFi.softAPIP());  \/\/ \u5370\u51fa\u71b1\u9ede\u7684IP\u4f4d\u5740\n}\n\/\/-------------------------------------------------------------------------------\n#include <esp_wifi.h>                \/\/ \u5f15\u7528esp_wifi\u51fd\u5f0f\u5eab\ninline void listConnectedStations()  \/\/ \u5370\u51fa\u5df2\u9023\u7dda\u88dd\u7f6e\u6e05\u55ae\n{\n  wifi_sta_list_t station_list;             \/\/ \u5132\u5b58\u9023\u7dda\u88dd\u7f6e\u5217\u8868\u7684\u7d50\u69cb\n  esp_wifi_ap_get_sta_list(&station_list);  \/\/ \u7372\u53d6\u7576\u524d\u9023\u63a5\u5230AP\u7684\u6240\u6709\u88dd\u7f6e\u5217\u8868\n\n  Serial.println(\"--------- \u7576\u524d\u9023\u7dda\u88dd\u7f6e\u6e05\u55ae ---------\");\n  Serial.print(\"\u9023\u7dda\u88dd\u7f6e\u6578\u91cf: \");\n  Serial.println(station_list.num);\n  Serial.println(\"----------------------------------\");\n\n  if (station_list.num > 0) {\n    Serial.println(\"\u7de8\u865f       MAC \u4f4d\u5740       IP \u4f4d\u5740\");\n    Serial.println(\"----------------------------------\");\n\n    for (int i = 0; i < station_list.num; i++) {\n      wifi_sta_info_t station = station_list.sta[i];\n\n      \/\/ \u53d6\u5f97 MAC \u4f4d\u5740\n      char macStr[18];\n      snprintf(macStr, sizeof(macStr), \"%02X:%02X:%02X:%02X:%02X:%02X\", station.mac[0], station.mac[1], station.mac[2], station.mac[3], station.mac[4], station.mac[5]);\n\n      \/\/ \u53d6\u5f97 IP \u4f4d\u5740 (\u9700\u8981\u900f\u904e DHCP \u79df\u7d04\u5217\u8868)\n      IPAddress ip = WiFi.softAPIP();\n      ip[3] = i + 2;  \/\/ \u9810\u8a2d\u5206\u914d\u5f9e .2 \u958b\u59cb\n\n      \/\/ \u986f\u793a\u88dd\u7f6e\u8cc7\u8a0a\n      Serial.printf(\"%2d  %s  %s\\n\", i + 1, macStr, ip.toString().c_str());\n    }\n  } else {\n    Serial.println(\"\u76ee\u524d\u6c92\u6709\u88dd\u7f6e\u9023\u7dda\");\n  }\n\n  Serial.println(\"----------------------------------\");\n}\n\/\/-------------------------------------------------------------------------------------------------------------------------\ninline void WiFiEvent(WiFiEvent_t event, arduino_event_info_t info)  \/\/ WiFi\u4e8b\u4ef6\u8655\u7406\u51fd\u5f0f\n{\n  uint8_t *mac = nullptr;   \/\/ \u5ba3\u544aMAC\u4f4d\u5740\u6307\u6a19\n  char macStr[18] = { 0 };  \/\/ \u5132\u5b58\u683c\u5f0f\u5316MAC\u4f4d\u5740\u7684\u5b57\u4e32\u7de9\u885d\u5340\n\n  switch (event) {\n    case ARDUINO_EVENT_WIFI_AP_STACONNECTED:  \/\/ \u88dd\u7f6e\u5df2\u9023\u7dda\n      \/\/ \u5f9e\u4e8b\u4ef6\u8cc7\u8a0a\u4e2d\u63d0\u53d6MAC\u4f4d\u5740\uff0c\u4e26\u5c07MAC\u4f4d\u5740\u683c\u5f0f\u5316\u70ba\u5b57\u4e32(XX:XX:XX:XX:XX:XX)\n      mac = info.wifi_ap_staconnected.mac;\n      snprintf(macStr, sizeof(macStr), \"%02X:%02X:%02X:%02X:%02X:%02X\", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);\n      Serial.println(\"\\n[\u4e8b\u4ef6] \u88dd\u7f6e\u5df2\u9023\u7dda\");\n      Serial.print(\"MAC: \");\n      Serial.println(macStr);\n      listConnectedStations();  \/\/ \u66f4\u65b0\u4e26\u986f\u793a\u7576\u524d\u9023\u7dda\u88dd\u7f6e\u6e05\u55ae\n      break;\n\n    case ARDUINO_EVENT_WIFI_AP_STADISCONNECTED:  \/\/ \u88dd\u7f6e\u65b7\u958b\u9023\u7dda\n      \/\/ \u5f9e\u4e8b\u4ef6\u8cc7\u8a0a\u4e2d\u63d0\u53d6MAC\u4f4d\u5740\uff0c\u4e26\u5c07MAC\u4f4d\u5740\u683c\u5f0f\u5316\u70ba\u5b57\u4e32(XX:XX:XX:XX:XX:XX)\n      mac = info.wifi_ap_stadisconnected.mac;\n      snprintf(macStr, sizeof(macStr), \"%02X:%02X:%02X:%02X:%02X:%02X\", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);\n      Serial.println(\"\\n[\u4e8b\u4ef6] \u88dd\u7f6e\u5df2\u65b7\u958b\u9023\u7dda\");\n      Serial.print(\"MAC: \");\n      Serial.println(macStr);\n      listConnectedStations();  \/\/ \u66f4\u65b0\u4e26\u986f\u793a\u7576\u524d\u9023\u7dda\u88dd\u7f6e\u6e05\u55ae\n      break;\n  }\n}\n\/\/-------------------------------------------------------------------------------\n#endif<\/code><\/pre>\n\n\n\n
\/\/-------------------------------------------------------------------------------------------------------------------------\nconst int ledPin = 2;             \/\/ LED\u63a5\u8173\nbool ledState = LOW;              \/\/ LED\u72c0\u614b\uff0c\u521d\u59cb\u503c\u70baLOW\uff08OFF\uff09\nbool blinkEnable = LOW;           \/\/ \u9583\u720d\u63a7\u5236\uff0c\u521d\u59cb\u503c\u70baLOW (\u505c\u6b62)\nunsigned long previousMillis = 0; \/\/ \u524d\u4e00\u6b21\u7684millis()\u6642\u9593\nint  interval = 500;              \/\/ \u9810\u8a2d\u8a08\u6642\u7684\u6642\u9593(ms)\n\/\/-------------------------------------------------------------------------------------------------------------------------\n#include \"wifi_setup.h\"  \/\/ \u5f15\u7528\u81ea\u884c\u5efa\u7fa9\u7684 \"wifi_setup.h\"\n\/\/-------------------------------------------------------------------------------------------------------------------------\n#include <WebServer.h>  \/\/ \u5f15\u7528WebServer\u51fd\u5f0f\u5eab\nWebServer server(80);   \/\/ \u5efa\u7acbWebServer\u7269\u4ef6, port\u70ba80\n\nvoid handleRoot()     \/\/ \u6839\u76ee\u9304\n{\n  String html = \"<meta name=\\\"viewport\\\" content=\\\"width=device-width, initial-scale=1.0\\\">\"\n                \"<p>\u6b61\u8fce\u5149\u81e8\uff01\u8acb\u9ede\u9078\u4e0b\u5217\u9023\u7d50\uff1a<\/p> <ul> <li><a href=\\\"\/on\\\">\u6253\u958b LED \u71c8<\/a><\/li> <li><a href=\\\"\/off\\\">\u95dc\u9589&nbsp;LED \u71c8<\/a><\/li> <li><a href=\\\"\/blink\\\">\u555f\u7528\u6216\u505c\u6b62\u9583\u720d&nbsp;LED \u71c8<\/a><\/li> <\/ul>\"\n                \"<p>\u8a2d\u5b9aLED\u9583\u720d\u6642\u9593(ms)\uff1a<\/p> <form action=\\\"\/setInterval\\\" method=\\\"get\\\" name=\\\"setInterval\\\"><input name=\\\"time\\\" type=\\\"number\\\" value=\\\"\" + String(interval) + \"\\\" \/><input type=\\\"submit\\\" value=\\\"\u8a2d\u5b9a\\\" \/>&nbsp;<\/form> <p>&nbsp;<\/p>\";\n  server.send(200, \"text\/html; charset=UTF-8\", html);\n}\n\nvoid handleOn()       \/\/ LED ON\n{\n  blinkEnable = false;\n  digitalWrite(ledPin, HIGH);\n  String html = \"<meta name=\\\"viewport\\\" content=\\\"width=device-width, initial-scale=1.0\\\">\"\n                \"<p><strong><span style=\\\"color:#e74c3c\\\">LED\u71c8\u5df2\u6253\u958b\uff01<\/span><\/strong><\/p> <ul> <li><a href=\\\"\/off\\\">\u95dc\u9589&nbsp;LED \u71c8<\/a><\/li> <li><a href=\\\"\/blink\\\">\u555f\u7528\u6216\u505c\u6b62\u9583\u720d&nbsp;LED \u71c8<\/a><\/li> <\/ul> <p><a href=\\\"\/\\\">\u8fd4\u56de\u9996\u9801<\/a><\/p>\"\n                \"<p>\u8a2d\u5b9aLED\u9583\u720d\u6642\u9593(ms)\uff1a<\/p> <form action=\\\"\/setInterval\\\" method=\\\"get\\\" name=\\\"setInterval\\\"><input name=\\\"time\\\" type=\\\"number\\\" value=\\\"\" + String(interval) + \"\\\" \/><input type=\\\"submit\\\" value=\\\"\u8a2d\u5b9a\\\" \/>&nbsp;<\/form> <p>&nbsp;<\/p>\";\n  server.send(200, \"text\/html; charset=UTF-8\", html);\n}\n\nvoid handleOff()      \/\/ LED OFF\n{\n  blinkEnable = false;\n  digitalWrite(ledPin, LOW);\n  String html = \"<meta name=\\\"viewport\\\" content=\\\"width=device-width, initial-scale=1.0\\\">\"\n                \"<p><span style=\\\"color:#27ae60\\\"><strong>LED\u71c8\u5df2\u95dc\u9589\uff01<\/strong><\/span><\/p> <ul> <li><a href=\\\"\/on\\\">\u958b\u555f&nbsp;LED \u71c8<\/a><\/li> <li><a href=\\\"\/blink\\\">\u555f\u7528\u6216\u505c\u6b62\u9583\u720d&nbsp;LED \u71c8<\/a><\/li> <\/ul> <p><a href=\\\"\/\\\">\u8fd4\u56de\u9996\u9801<\/a><\/p>\"\n                \"<p>\u8a2d\u5b9aLED\u9583\u720d\u6642\u9593(ms)\uff1a<\/p> <form action=\\\"\/setInterval\\\" method=\\\"get\\\" name=\\\"setInterval\\\"><input name=\\\"time\\\" type=\\\"number\\\" value=\\\"\" + String(interval) + \"\\\" \/><input type=\\\"submit\\\" value=\\\"\u8a2d\u5b9a\\\" \/>&nbsp;<\/form> <p>&nbsp;<\/p>\";\n  server.send(200, \"text\/html; charset=UTF-8\", html);\n}\n\nvoid handleBlink()    \/\/ LED Blink\n{\n  blinkEnable = !blinkEnable;\n  String html;\n  if (blinkEnable == true)\n  {\n    html = \"<meta name=\\\"viewport\\\" content=\\\"width=device-width, initial-scale=1.0\\\">\"\n           \"<p><span style=\\\"color:#e74c3c\\\"><strong>LED\u71c8\u6b63\u5728\u9583\u720d\uff01<\/strong><\/span><\/p> <ul> <li><a href=\\\"\/on\\\">\u958b\u555f&nbsp;LED \u71c8<\/a><\/li> <li><a href=\\\"\/off\\\">\u95dc\u9589 LED \u71c8<\/a><\/li> <li><a href=\\\"\/blink\\\">\u95dc\u9589&nbsp;LED \u71c8\u9583\u720d<\/a><\/li> <\/ul><p><a href=\\\"\/\\\">\u8fd4\u56de\u9996\u9801<\/a><\/p>\"\n           \"<p>\u8a2d\u5b9aLED\u9583\u720d\u6642\u9593(ms)\uff1a<\/p> <form action=\\\"\/setInterval\\\" method=\\\"get\\\" name=\\\"setInterval\\\"><input name=\\\"time\\\" type=\\\"number\\\" value=\\\"\" + String(interval) + \"\\\" \/><input type=\\\"submit\\\" value=\\\"\u8a2d\u5b9a\\\" \/>&nbsp;<\/form> <p>&nbsp;<\/p>\";\n  }\n  else\n  {\n    html = \"<meta name=\\\"viewport\\\" content=\\\"width=device-width, initial-scale=1.0\\\">\"\n           \"<p><span style=\\\"color:#27ae60\\\"><strong>LED\u71c8\u5df2\u505c\u6b62\u9583\u720d\uff01<\/strong><\/span><\/p> <ul> <li><a href=\\\"\/on\\\">\u958b\u555f&nbsp;LED \u71c8<\/a><\/li> <li><a href=\\\"\/off\\\">\u95dc\u9589 LED \u71c8<\/a><\/li> <li><a href=\\\"\/blink\\\">\u958b\u555f&nbsp;LED \u71c8\u9583\u720d<\/a><\/li> <\/ul><p><a href=\\\"\/\\\">\u8fd4\u56de\u9996\u9801<\/a><\/p>\"\n           \"<p>\u8a2d\u5b9aLED\u9583\u720d\u6642\u9593(ms)\uff1a<\/p> <form action=\\\"\/setInterval\\\" method=\\\"get\\\" name=\\\"setInterval\\\"><input name=\\\"time\\\" type=\\\"number\\\" value=\\\"\" + String(interval) + \"\\\" \/><input type=\\\"submit\\\" value=\\\"\u8a2d\u5b9a\\\" \/>&nbsp;<\/form> <p>&nbsp;<\/p>\";\n  }\n\n  server.send(200, \"text\/html; charset=UTF-8\", html);\n}\n\nvoid handleSetInterval()\n{\n  if (server.hasArg(\"time\"))    \/\/ \u6aa2\u67e5\u662f\u5426\u6709\u6536\u5230\u53c3\u6578\n  {\n    int newInterval = server.arg(\"time\").toInt();\n    if (newInterval > 0)\n    {\n      interval = newInterval;\n    }\n  }\n\n  String html = \"<meta name=\\\"viewport\\\" content=\\\"width=device-width, initial-scale=1.0\\\">\"\n                \"<p><strong>\u9583\u720d\u9593\u9694\u5df2\u8a2d\u5b9a\u70ba \" + String(interval) + \" \u6beb\u79d2<\/strong><\/p>\"\n                \"<p><a href=\\\"\/\\\">\u8fd4\u56de\u9996\u9801<\/a><\/p>\"\n                \"<p>\u8a2d\u5b9aLED\u9583\u720d\u6642\u9593(ms)\uff1a<\/p> <form action=\\\"\/setInterval\\\" method=\\\"get\\\" name=\\\"setInterval\\\"><input name=\\\"time\\\" type=\\\"number\\\" value=\\\"\" + String(interval) + \"\\\" \/><input type=\\\"submit\\\" value=\\\"\u8a2d\u5b9a\\\" \/>&nbsp;<\/form> <p>&nbsp;<\/p>\";\n  server.send(200, \"text\/html; charset=UTF-8\", html);\n}\n\nvoid handleNotFound() \/\/ \u627e\u4e0d\u5230\u7db2\u9801\n{\n  String html = \"<meta name=\\\"viewport\\\" content=\\\"width=device-width, initial-scale=1.0\\\">\"\n                \"\u627e\u4e0d\u5230\u7db2\u9801\";\n  server.send(404, \"text\/html; charset=UTF-8\", html);\n}\n\/\/-------------------------------------------------------------------------------------------------------------------------\n\nvoid setup() {\n  \/\/-------------------------------------------------------------------\n  pinMode(ledPin, OUTPUT);  \/\/ \u8a2d\u5b9aLED\u70ba\u8f38\u51fa\u8173\n  Serial.begin(9600);       \/\/ \u555f\u7528\u4e32\u5217\u57e0\u76e3\u770b\u8996\u7a97\n  \/\/--------------------------- softAP\u8a2d\u5b9a ----------------------------\n  startAP();                \/\/ \u555f\u7528\u71b1\u9ede\n  WiFi.onEvent(WiFiEvent);  \/\/ \u555f\u7528WiFi\u4e8b\u4ef6\u8655\u7406\n  listConnectedStations();  \/\/ \u5370\u51fa\u5df2\u9023\u7dda\u88dd\u7f6e\u6e05\u55ae\n  \/\/---------------------------WebServer\u8a2d\u5b9a---------------------------\n  server.on(\"\/\", handleRoot);         \/\/ \u5728\/\u6642\uff0c\u524d\u5f80handleRoot()\n  server.on(\"\/on\", handleOn);         \/\/ \u5728\/on\u6642\uff0c\u524d\u5f80handleOn()\n  server.on(\"\/off\", handleOff);       \/\/ \u5728\/off\u6642\uff0c\u524d\u5f80handleOff()\n  server.on(\"\/blink\", handleBlink);   \/\/ \u5728\/blink\u6642\uff0c\u524d\u5f80handleBlink()\n  server.on(\"\/setInterval\", handleSetInterval);  \/\/ \u5728\/setInterval\u6642\uff0c\u524d\u5f80handleSetInterval()\n  server.onNotFound(handleNotFound);  \/\/ \u627e\u4e0d\u5230\u7db2\u9801\u6642\uff0c\u524d\u5f80handleNotFound()  \n  server.begin();                     \/\/ \u555f\u52d5webServer\n  Serial.println(\"Server\u5df2\u555f\u52d5\");      \/\/ \u5370\u51fa\u63d0\u793a\u6587\u5b57\n  \/\/-------------------------------------------------------------------\n}\n\nvoid loop() {\n  server.handleClient();    \/\/ \u6aa2\u67e5\u662f\u5426\u6709\u5ba2\u6236\u7aef\u5411ESP32 WebServer\u767c\u9001\u8acb\u6c42\n\n  \/\/--------------------------------------------------------------------------\n  if (blinkEnable == true)\n  {\n    unsigned long currentMillis = millis();            \/\/ \u7576\u524d\u7684millis()\u6642\u9593\n    if (currentMillis - previousMillis >= interval)    \/\/ \u82e5\u9054\u5230\u9810\u8a2d\u8a08\u6642\u7684\u6642\u9593\n    {\n      previousMillis = currentMillis;                  \/\/ \u66f4\u65b0\u524d\u4e00\u6b21\u7684millis()\u6642\u9593\n\n      \/\/-----------------------------\n      \/\/ \u6bcf\u500binterval\u6240\u505a\u7684\u4e8b\n      \/\/-----------------------------\n      ledState = !ledState;                 \/\/ \u6539\u8b8aLED\u72c0\u614b\n      digitalWrite(ledPin, ledState);       \/\/ \u8f38\u51fa\u72c0\u614b\n      \/\/-----------------------------\n    }\n  }\n  \/\/--------------------------------------------------------------------------  \n}<\/code><\/pre>\n\n\n\n
\u672c\u6b21\u7df4\u7fd2\u6211\u5011\u5e0c\u671b\u5c07\u4e0d\u540c\u52d5\u4f5c\u7684\u5404\u500b\u9801\u9762\u9032\u884c\u6574\u5408\uff0c\u8b93\u6240\u6709\u7684\u8a0a\u606f\u5f59\u6574\u5448\u73fe\u5728\u9996\u9801\u4e0a\uff0c\u4e26\u53ef\u5b9a\u671f\u81ea\u52d5\u66f4\u65b0\u5167\u5bb9\u3002<\/p>\n\n\n\n
\u539f\u7db2\u9801\u5167\u5bb9<\/h2>\n\n\n\n
\n
\n
\"\"
\u76ee\u9304 \/<\/figcaption><\/figure>\n<\/div><\/div>\n\n\n\n
\n
\"\"\/
\u76ee\u9304 \/on
<\/figcaption><\/figure>\n<\/div><\/div>\n\n\n\n
\n
\"\"\/
\u76ee\u9304 \/off<\/figcaption><\/figure>\n<\/div><\/div>\n<\/div>\n\n\n\n
\n
\n
\"\"\/
\u76ee\u9304 \/blink<\/figcaption><\/figure>\n<\/div><\/div>\n\n\n\n
\n
\"\"\/
\u76ee\u9304 \/blink<\/figcaption><\/figure>\n<\/div><\/div>\n\n\n\n
\n
\"\"\/
\u76ee\u9304 \/setInterval<\/figcaption><\/figure>\n<\/div><\/div>\n<\/div>\n\n\n\n
\u6574\u5408\u7db2\u9801\u5167\u5bb9<\/h2>\n\n\n\n
\n
\n
\"\"\/
\u76ee\u9304 \/<\/figcaption><\/figure>\n<\/div><\/div>\n\n\n\n
\n
\"\"\/
\u76ee\u9304 \/<\/figcaption><\/figure>\n<\/div><\/div>\n<\/div>\n\n\n\n
\u8a2d\u8a08\u601d\u8def<\/h2>\n\n\n\n
    \n
  1. \u65b0\u589e\u4e00\u500b\u76ee\u9304 \/status<\/code> \uff0c\u8ca0\u8cac\u50b3\u905e\u4e0b\u9762\u7684 JSON \u683c\u5f0f\u53c3\u6578\u3002<\/li>\n<\/ol>\n\n\n\n
    {\n  \"led\": \"ON\",           \/\/ LED\u72c0\u614b\n  \"blink\": \"\u6b63\u5728\u9583\u720d\",    \/\/ \u662f\u5426\u9583\u720d\n  \"interval\": 500        \/\/ \u9583\u720d\u6642\u9593\u9593\u9694\n}<\/code><\/pre>\n\n\n\n
      \n
    1. \u524d\u7aef\u7db2\u9801\u7528 JavaScript (AJAX \/ fetch)\n
        \n
      • \u6bcf\u9694\u4e00\u6bb5\u6642\u9593\u81ea\u52d5\u5411 \/status<\/code> \u8acb\u6c42\u8cc7\u6599\u3002<\/li>\n\n\n\n
      • \u89e3\u6790 JSON \u5167\u5bb9\uff0c\u66f4\u65b0\u9801\u9762\u4e0a\u7684\u72c0\u614b\u986f\u793a\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n
      • \u6240\u6709\u63a7\u5236\u9023\u7d50\/on<\/code>, \/off<\/code>, \/blink<\/code>, \/setInterval<\/code> \u57f7\u884c\u5f8c\u81ea\u52d5\u5c0e\u5411\u9996\u9801\uff0c\u7d71\u4e00\u5728\u9996\u9801\u986f\u793a\u72c0\u614b\u8a0a\u606f\u3002<\/li>\n\n\n\n
      • AJAX \u53ea\u8ca0\u8cac\u8b80\u53d6\u72c0\u614b\uff0c\u4e26\u4e0d\u6703\u5f71\u97ff\u539f\u63a7\u5236\u529f\u80fd\u3002<\/li>\n<\/ol>\n\n\n\n
        \u5be6\u4f5c\u6b65\u9a5f<\/h2>\n\n\n\n
        1\u3001\u5728WebServer\u8a2d\u5b9a\u4e2d\u65b0\u589e\u4e00\u500b\u8655\u7406\u9801\u9762 \/status\uff0c\u524d\u5f80handleStatus()\u526f\u7a0b\u5f0f\u3002<\/p>\n\n\n\n
        server.on(\"\/status\", handleStatus);    \/\/ \u5728\/status\u6642\uff0c\u524d\u5f80handleStatus()<\/code><\/pre>\n\n\n\n
        2\u3001handleStatus() \u526f\u7a0b\u5f0f\u8cac\u8ca0\u50b3\u905e\u9700\u8981\u66f4\u65b0\u7684led\u3001blink\u3001interval\u7b49\u53c3\u6578\uff1a<\/p>\n\n\n\n
        void handleStatus()   \/\/ Status\n{\n  String json = \"{\";\n  json += \"\\\"led\\\":\\\"\" + String(ledState ? \"ON\" : \"OFF\") + \"\\\",\";                 \/\/ ledState\u70ba1\u6642\uff0c\u986f\u793a\u201cON\u201d\uff0c\u5426\u5247\u986f\u793a\u201cOFF\u201d\n  json += \"\\\"blink\\\":\\\"\" + String(blinkEnable ? \"\u6b63\u5728\u9583\u720d\" : \"\u505c\u6b62\u9583\u720d\") + \"\\\",\";   \/\/ blinkEnable\u70ba1\u6642\uff0c\u986f\u793a\u201c\u6b63\u5728\u9583\u720d\u201d\uff0c\u5426\u5247\u986f\u793a\u201c\u505c\u6b62\u9583\u720d\u201d\n  json += \"\\\"interval\\\":\" + String(interval);\n  json += \"}\";\n  server.send(200, \"application\/json\", json);\n}<\/code><\/pre>\n\n\n\n
        3\u3001\u5728\u9996\u9801\u7684 html \u7a0b\u5f0f\u78bc\u4e2d\u52a0\u5165AJAX\u81ea\u52d5\u66f4\u65b0\u7684JavaScript\uff1a<\/p>\n\n\n\n
        void handleRoot()     \/\/ \u6839\u76ee\u9304\n{\n  String html = \"<meta name=\\\"viewport\\\" content=\\\"width=device-width, initial-scale=1.0\\\">\"\n                \"<p>\u6b61\u8fce\u5149\u81e8\uff01\u8acb\u9ede\u9078\u4e0b\u5217\u9023\u7d50\uff1a<\/p>\"\n                \"<ul>\"\n                \"<li><a href=\\\"\/on\\\">\u6253\u958b LED \u71c8<\/a><\/li>\"\n                \"<li><a href=\\\"\/off\\\">\u95dc\u9589 LED \u71c8<\/a><\/li>\"\n                \"<li><a href=\\\"\/blink\\\">\u555f\u7528\u6216\u505c\u6b62\u9583\u720d LED \u71c8<\/a><\/li>\"\n                \"<\/ul>\"\n\n                \/\/ \u8a2d\u5b9a\u9583\u720d\u6642\u9593\n                \"<p>\u8a2d\u5b9aLED\u9583\u720d\u6642\u9593(ms)\uff1a<\/p>\"\n                \"<form action=\\\"\/setInterval\\\" method=\\\"get\\\" name=\\\"setInterval\\\">\"\n                \"<input name=\\\"interval\\\" type=\\\"number\\\" value=\\\"\" + String(interval) + \"\\\" \/>\"\n                \"<input type=\\\"submit\\\" value=\\\"\u8a2d\u5b9a\\\" \/>\"\n                \"<\/form>\"\n\n                \/\/ AJAX \u72c0\u614b\u81ea\u52d5\u66f4\u65b0\n                \"<div id=\\\"status\\\">\u8b80\u53d6\u72c0\u614b...<\/div>\"\n                \"<script>\"\n                \"function updateStatus(){\"\n                \"  fetch('\/status')\"                                   \/\/ \u5411 \/status \u767c\u9001\u8acb\u6c42\n                \"    .then(response => response.json())\"               \/\/ \u89e3\u6790 JSON\n                \"    .then(data => {\"\n                \"      let html = 'LED\u72c0\u614b\uff1a' + data.led + '<BR>';\"\n                \"         html += '\u9583\u720d\u72c0\u614b\uff1a' + data.blink + '<BR>';\"\n                \"         html += '\u9583\u720d\u9593\u9694\uff1a' + data.interval + ' ms';\"\n                \"      document.getElementById('status').innerHTML = html;\"\n                \"    });\"\n                \"}\"\n                \"setInterval(updateStatus,\" + String(interval) + \");\"   \/\/ \u6bcf\u500binterval\u66f4\u65b0\u4e00\u6b21\n                \"updateStatus();\"                                       \/\/ \u8f09\u5165\u66f4\u65b0\u9801\u9762\n                \"<\/script>\";\n\n  server.send(200, \"text\/html; charset=UTF-8\", html);\n}<\/code><\/pre>\n\n\n\n
        4\u3001\u5229\u7528\u4e0b\u5217\u7a0b\u5f0f\u78bc\uff0c\u53ef\u4f7f\u539f\u63a7\u5236\u9023\u7d50\/on<\/code>, \/off<\/code>, \/blink<\/code>, \/setInterval<\/code>\u57f7\u884c\u5f8c\uff0c\u81ea\u52d5\u5c0e\u5411\u9996\u9801\u3002<\/p>\n\n\n\n
        server.sendHeader(\"Location\", \"\/\");\nserver.send(303);<\/code><\/pre>\n\n\n\n
        \/\/-------------------------------------------------------------------------------\nvoid handleOn()   \/\/ LED ON\n{\n  blinkEnable = false;\n  digitalWrite(ledPin, HIGH);\n  ledState = HIGH;\n  server.sendHeader(\"Location\", \"\/\");\n  server.send(303);\n}\n\/\/-------------------------------------------------------------------------------\nvoid handleOff()  \/\/ LED OFF\n{\n  blinkEnable = false;\n  digitalWrite(ledPin, LOW);\n  ledState = LOW;\n  server.sendHeader(\"Location\", \"\/\");\n  server.send(303);\n}\n\/\/-------------------------------------------------------------------------------\nvoid handleBlink()  \/\/ LED Blink\n{\n  blinkEnable = !blinkEnable;\n  server.sendHeader(\"Location\", \"\/\");\n  server.send(303);\n}\n\/\/-------------------------------------------------------------------------------\nvoid handleSetInterval()  \/\/ Setup Blink Interval\n{\n  if (server.hasArg(\"interval\"))  \/\/ \u6aa2\u67e5\u662f\u5426\u6709\u6536\u5230\u53c3\u6578\n  {\n    int newInterval = server.arg(\"interval\").toInt();\n    if (newInterval > 0)\n    {\n      interval = newInterval;\n      blinkEnable = true;  \/\/ \u8a2d\u5b9a\u5f8c\u555f\u7528\u9583\u720d\n    }\n  }\n  server.sendHeader(\"Location\", \"\/\");\n  server.send(303);\n}\n\/\/-------------------------------------------------------------------------------<\/code><\/pre>\n\n\n\n
        \u4f5c\u696d\u7df4\u7fd2\uff1a\u8acb\u5c07\u4e0a\u9031\u4f5c\u696d\uff0c\u63a7\u5236LED\u71c8\u4eae\u6ec5\u7a0b\u5ea6\u3001\u9583\u720d\u6642\u9593\u3001\u986f\u793a\u72c0\u614b\u7b49\u529f\u80fd\u6574\u5408\u5728\u9996\u9801\u4e0a\uff0c\u4e26\u53ef\u5b9a\u671f\u81ea\u52d5\u66f4\u65b0\u5167\u5bb9\u3002<\/p>\n\n\n\n
        <\/p>\n","protected":false},"excerpt":{"rendered":"
        \u4e0a\u9031\u7bc4\u4f8b\u7a0b\u5f0f\uff1a \u672c\u6b21\u7df4\u7fd2\u6211\u5011\u5e0c\u671b\u5c07\u4e0d\u540c\u52d5\u4f5c\u7684\u5404\u500b\u9801\u9762\u9032\u884c\u6574\u5408\uff0c\u8b93\u6240\u6709\u7684\u8a0a\u606f\u5f59\u6574\u5448\u73fe\u5728\u9996\u9801\u4e0a\uff0c\u4e26\u53ef\u5b9a\u671f\u81ea\u52d5\u66f4\u65b0\u5167<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8],"tags":[],"class_list":["post-2002","post","type-post","status-publish","format-standard","hentry","category-microcontroller-practice"],"_links":{"self":[{"href":"https:\/\/www.640629.xyz\/index.php?rest_route=\/wp\/v2\/posts\/2002","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.640629.xyz\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.640629.xyz\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.640629.xyz\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.640629.xyz\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2002"}],"version-history":[{"count":50,"href":"https:\/\/www.640629.xyz\/index.php?rest_route=\/wp\/v2\/posts\/2002\/revisions"}],"predecessor-version":[{"id":2083,"href":"https:\/\/www.640629.xyz\/index.php?rest_route=\/wp\/v2\/posts\/2002\/revisions\/2083"}],"wp:attachment":[{"href":"https:\/\/www.640629.xyz\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2002"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.640629.xyz\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2002"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.640629.xyz\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2002"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}