鹏程万里------HIM开发中遇到的问题

首先解决tcp模拟http get文件，整整浪费了一周时间：

废话不多说，http请求头长这样：

GET /ota/wifi/test/magpie.bin HTTP/1.1
Host: powerview.oss-cn-hangzhou.aliyuncs.com
Accept:*/*
Connection:Keep-Alive

特别提醒，最后1行空白必须存在，也就是一定要有一行空白

搞了个大乌龙，tcp发送get的长度没检查，原来一直是0，直到自己搭建了http本地服务器才发现这个坑

这是python写的http服务器

def httpserver(self):
    server_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
    server_socket.bind(("", 8000))
    server_socket.listen(128)

    while True:
        try:
            client_socket, client_address = server_socket.accept()
            print("[%s, %s]用户连接上了" % client_address)
            request_data = client_socket.recv(1024)
            print("request data:", request_data)
        # 构造响应数据
            response_start_line = "HTTP/1.1 200 OK\r\n"
            response_headers = "Server: My server\r\n"
            response_body = "
Python HTTP Test
"
            response = response_start_line + response_headers + "\r\n" + response_body
        # 向客户端返回响应数据
            client_socket.send(bytes(response, "utf-8"))
        # 关闭客户端连接
            client_socket.close()
        except Exception as err:
            print(err)

 

然后c语言的http get

        err = TCPConnect(1, "192.168.2.142"/*server*/, 8000/*port*/);
    if(err >= 0){
        //fail_cnt = 0;
        portal_conn.sock_fd = err;
        portal_conn.status = portalsConnected;

        printf("connect server ok\r\n");
                
                memset(portal_tx_buffer, 0, 113);
                memcpy(portal_tx_buffer, "GET http://www.192.168.2.142/favicon.ico HTTP/1.1\r\n",51);
                memcpy(portal_tx_buffer+51, "Host:www.192.168.2.142\r\n",24);
                memcpy(portal_tx_buffer+75, "Accept:*/*\r\n",12);
                memcpy(portal_tx_buffer+87, "Connection:keep-alive\r\n",24);
          memcpy(portal_tx_buffer+110 ,"\r\n",2);

            TCPSend(portal_conn.sock_fd, portal_tx_buffer, 113);
        osDelay(200);
        while(1)
        {
            err = TCPRecv(portal_conn.sock_fd, rec, 256);
        if(err<=0)
        {
            return err;
        }
        
        }