一、前言;


  • 这个月也快结束了,时间真快,我服务器知识自学依然在路途中,这几天听到热点网页配置esp8266连接路由器,那么我想这个不是很复杂,不过需要一些通讯协议的基础,以及对esp8266SDK开发的熟悉,这几天撸了几下也就轻松弄出来了!不过我今天给大家带来的是实现的原理,我是用作于gpio口控制,也就是一盏灯的点亮点灭!当然了,你可以沿着我思路去做网页内置配网哦!

二、整体思路;


  • <font color=black size=2 >①:以手机浏览器为例,其访问指定的ip地址,过程是怎么样的?
  • <font color=black size=2 >②:编写好的html对应烧录的地址,应该怎么注意什么?

三、编写一个简单的Html文件;


  • 非常簡單,我这里直接上代码:
    • 用的是post提交,不是get请求!
    • 当点击开灯,发送powerOn=1,点击关灯发送powerOn=0
    • 注意编码是utf-8!

<!DOCTYPE html>
<html>
<head>
	<meta charset="UTF-8"></meta><title>esp8266内置网页单开关灯</title></head>
	<body>
		<h2 align="center">esp8266热点内置网页单开关灯By半颗心脏</h2>
		<h3 align="center">%s</h3>
		<form method="post"action="setLight">
			<table align="center"><tr><td>开灯:</td><td>
				<button name="powerOn"type="submit"value="1">点我开灯</button>
			</td></tr><tr><td>关灯:</td><td>
				<button name="powerOff"type="submit"value="0">点我关灯</button>
			</td></tr>
		   </table>
	</form>
</body>
</html>

esp8266烧录Html文件,实现内置网页控制设备!-LMLPHP


四、esp8266编程;


4.1 配置热点模式,开启软路由!


	wifi_set_opmode(SOFTAP_MODE);
	struct softap_config *config = (struct softap_config *) zalloc(
			sizeof(struct softap_config)); // 初始化

	wifi_softap_get_config(config);
	sprintf(config->ssid, "webEsp8266");
	sprintf(config->password, "xh12345678");
	config->authmode = AUTH_WPA_WPA2_PSK;
	config->ssid_len = 0;
	config->max_connection = 4;
	wifi_softap_set_config(config); // Set ESP8266 soft-AP config
	free(config);

	struct station_info * station = wifi_softap_get_station_info();
	while (station) {
		printf("bssid : MACSTR, ip : IPSTR/n", MAC2STR(station->bssid),
				IP2STR(&station->ip));
		station = STAILQ_NEXT(station, next);
	}
	wifi_softap_free_station_info(); // Free it by calling functionss
	wifi_softap_dhcps_stop(); // disable soft-AP DHCP server

	//配置dhcp,固定esp8266的ip为 192, 168, 5, 1
	struct ip_info info;
	IP4_ADDR(&info.ip, 192, 168, 5, 1);
	IP4_ADDR(&info.gw, 192, 168, 5, 1);
	IP4_ADDR(&info.netmask, 255, 255, 255, 0);
	wifi_set_ip_info(SOFTAP_IF, &info);
	struct dhcps_lease dhcp_lease;
	IP4_ADDR(&dhcp_lease.start_ip, 192, 168, 5, 100); //分配的网段ip开始
	IP4_ADDR(&dhcp_lease.end_ip, 192, 168, 5, 105); //分配的网段ip结束
	wifi_softap_set_dhcps_lease(&dhcp_lease);
	wifi_softap_dhcps_start(); // 使能 soft-AP DHCP 服务

4.2 创建tcp服务器!

	int32 listenfd;
	int32 ret = 0;
	char input[1024] = { 0 };
	char output[1024] = { 0 };
	struct sockaddr_in server_addr, remote_addr;
	int stack_counter = 0;
	memset(&server_addr, 0, sizeof(server_addr));
	server_addr.sin_family = AF_INET;
	server_addr.sin_addr.s_addr = INADDR_ANY;
	server_addr.sin_len = sizeof(server_addr);
	server_addr.sin_port = htons(80);

	printf("[XHLogUtils] Task_local_server init succeed!!! \n");

	/* Create socket for incoming connections */
	do {
		listenfd = socket(AF_INET, SOCK_STREAM, 0);
		printf("[XHLogUtils] Create socket for incoming connections !!! \n");
		if (listenfd == -1) {
			printf(
					"[XHLogUtils] Create socket for incoming connections -1 !!! \n");
			vTaskDelay(1000 / portTICK_RATE_MS);
		}
	} while (listenfd == -1);

	/* Bind to the local port */
	do {
		ret = bind(listenfd, (struct sockaddr * )&server_addr,
				sizeof(server_addr));
		printf("[XHLogUtils] Create socket binding !!! \n");
		if (ret != 0) {
			printf("Create socket binding = -1 \n");
			vTaskDelay(1000 / portTICK_RATE_MS);
		}
	} while (ret != 0);

	do {
		// Listen to the local connection
		ret = listen(listenfd, 4);
		printf("[XHLogUtils] Create socket listening !!! \n");
		if (ret != 0) {
			printf(
					"[XHLogUtils] Create socket listening = -1 will close!!! \n");
			vTaskDelay(1000 / portTICK_RATE_MS);
		}
	} while (ret != 0);

	int32 client_sock;
	int32 len = sizeof(struct sockaddr_in);

	for (;;) {

		printf(
				"[XHLogUtils] Task_local_server block here waiting remote connect request !!! \n");

		/*block here waiting remote connect request*/
		if ((client_sock = accept(listenfd, (struct sockaddr * )&remote_addr,
				(socklen_t * )&len)) < 0) {
			printf("[XHLogUtils] acceptting < 0...\n");
			continue;
		} else {
			printf("[XHLogUtils] acceptting > 0...\n");
		}
	}

4.3 对来自客户端数据的处理以及回复!

  • 开灯请求得到客户端数据:
POST /setLight HTTP/1.1
Host: 192.168.5.1
Connection: keep-alive
Content-Length: 9
Cache-Control: max-age=0
Origin: http://192.168.5.1
Content-Type: application/x-www-form-urlencoded
User-Agent: Mozilla/5.0 (Linux; U; Android 8.1.0; zh-cn; MI 8 Build/OPM1.171019.026) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/57.0.2987.132 MQQBrowser/8.9 Mobile Safari/537.36
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,image/sharpp,image/apng,image/tpg,*/*;q=0.8
Referer: http://192.168.5.1/setLight
Accept-Encoding: gzip, deflate
Accept-Language: zh-CN,en-US;q=0.8

powerOn=1
  • 关灯请求得到客户端数据:
POST /setLight HTTP/1.1
Host: 192.168.5.1
Connection: keep-alive
Content-Length: 9
Cache-Control: max-age=0
Origin: http://192.168.5.1
Content-Type: application/x-www-form-urlencoded
User-Agent: Mozilla/5.0 (Linux; U; Android 8.1.0; zh-cn; MI 8 Build/OPM1.171019.026) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/57.0.2987.132 MQQBrowser/8.9 Mobile Safari/537.36
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,image/sharpp,image/apng,image/tpg,*/*;q=0.8
Referer: http://192.168.5.1/setLight
Accept-Encoding: gzip, deflate
Accept-Language: zh-CN,en-US;q=0.8

powerOn=0
  • body里面数据剖析,进一步得到指定的动作执行gpio!!并回复给客户端,注意之后主动要断开tcp连接!

			//确定是post请求
			if (input[0] == 'P' && input[1] == 'O' && input[2] == 'S'
					&& input[3] == 'T') {

				//显示client 端的网络地址
				char *pBody = NULL;
				//得到body
				get_http_body(input, &pBody);
				char attribute[] = { "" };
				//截取之后保存的位置,源字符串,要截取的字符串的长度
				strncpy(attribute, pBody, strlen(pBody) - 2);
				//获取value设置数值
				char *pValue = (char *) strstr(pBody, "=");
				pValue += 1;
				if (strcmp(pValue, "0") == 0) {
					GPIO_OUTPUT_SET(GPIO_ID_PIN(12), 1);
				} else {
					GPIO_OUTPUT_SET(GPIO_ID_PIN(12), 0);
				}

			}

			char *pStatus;
			if (GPIO_INPUT_GET(12) == 0x00) {
				pStatus = "智能灯的当前状态:开";
			} else {
				pStatus = "智能灯的当前状态:关";
			}

			char tempHttpHead[1024], tempHttpBody[1024];
			sprintf(tempHttpHead, httpHead, strlen(tempSaveData));
			//协议头拼接到发送的变量
			sprintf(sendstr, tempHttpHead);
		    //设置结束符
			tempSaveData[594] = 0;
			//协议body拼接到发送的变量
			sprintf(tempHttpBody, tempSaveData, pStatus);
			//拼接到发送全部消息
			strcat(sendstr, tempHttpBody);

			write(client_sock, sendstr, strlen(sendstr));


五、esp8266flash读取网页的注意要点;


  • 在我之前说到的是先通过工具把html网页烧录到flash芯片,我这里使用的是25q32,可用的空间会比较大,我这里就烧录到0x1F4000,计算之后是哪个扇区呢?大家可以算下,0x1F4000换算十进制就是‭2048000‬,一个扇区是4096 bytes,而‭2048000 / 4096 = 500 ‬ ,也就是第 500 个扇区了!于是我们代码这样读取:
    //500*4096 相当于  0x1F4000 ,也就是 0x1F4 * 4096
	spi_flash_read(500 * 4096, (uint32 *) &tempSaveData, sizeof(tempSaveData));
	printf("get Html Content:  %s \n", tempSaveData);


  • 在拿到了网页信息之后,要自己设置字符串内容的结束符,这就需要我们的Html文件有多大?注意:我们要的是显示全部内容下的时候才拿到这个Html文件大小,注意我们上面的是格式符%s,取出来的当然会小很多!
           //设置结束符
			tempSaveData[594] = 0;

esp8266烧录Html文件,实现内置网页控制设备!-LMLPHP


六、其他注意要点;


  • 上面注意这个文件大小,再来设置结束符!如果设置不对,设置过多或过少,会影响显示效果哦!切记切记!
  • 下面是烧录固件和Html文件的烧录截图!

esp8266烧录Html文件,实现内置网页控制设备!-LMLPHP

  • 下面是客户端手机浏览器截图!

esp8266烧录Html文件,实现内置网页控制设备!-LMLPHP

esp8266烧录Html文件,实现内置网页控制设备!

03-26 08:28