分享 UCOS+LWIP+STM32F407+HTML网页-maoxue121225的回答

分享 UCOS+LWIP+STM32F407+HTML网页

2020-01-11 18:15发布

这个东西原理简单，就是要懂一些HTML语言，然后LWIP网络编程模拟一个简单的网站。可用于参数配置，非常适合那种不带液晶屏和按键，但又有大量数据要配置的设备。直接用浏览器配置数据，免去了上位机配置软件的开发，方便使用。

/*web 任务*/
void task_for_web_server(void *arg)
{
int retval;
int web_listen_sockfd;
int i;
int rcvlen, sndlen;
int curRecePos=0;
socklen_t addrlen;
struct sockaddr_in srv_sockaddr,cln_sockaddr;

OSTimeDlyHMSM(0,0,1,0);//==d等系统准备好
web_server_init();

memset(&srv_sockaddr, 0, sizeof(struct sockaddr_in));
#if !(defined LWIP_BSD_SOCKER && LWIP_BSD_SOCKER > 0)
srv_sockaddr.sin_len = sizeof(struct sockaddr_in);
#endif
srv_sockaddr.sin_family = AF_INET;
srv_sockaddr.sin_port = htons(80);
srv_sockaddr.sin_addr.s_addr = htonl(INADDR_ANY);

//=======
printf("task_for_http_server go... ");
for(;;)
{
      /* 创建TCP socket. */
      web_listen_sockfd = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
      if(web_listen_sockfd == (-1))
      {
         printf(" ERR:web_listen_sockfd ceate errlog=%d ",errno);
         close(web_listen_sockfd);
         continue;
      }
      setsockopt(web_listen_sockfd, SOL_SOCKET, SO_REUSEADDR, &attr_bind, sizeof(attr_bind));

      /* 绑定socket IP地址及端口号. */
      addrlen = sizeof(struct sockaddr_in);
      retval  = bind(web_listen_sockfd, (struct sockaddr *)&srv_sockaddr, addrlen);
      if(retval == (-1))
      {
         printf(" ERR:web_listen_sockfd bind errlog=%d ",errno);
         close(web_listen_sockfd);
         continue;
      }


      /* 侦听socket连接. */
      retval = listen(web_listen_sockfd, 1);
      if(retval == (-1))
      {
         printf(" ERR:web_listen_sockfd listen  errlog=%d ",errno);
         close(web_listen_sockfd);
         OSTimeDlyHMSM(0,0,3,0);
         continue;
      }

      /* 处理链接，循环接受数据. */
      while (1)
      {
         /* 阻塞等待客户端建立连接. */
         printf(" HttpServer wait accept...... ");
         socket_fd_web = accept(web_listen_sockfd, (struct sockaddr *)&cln_sockaddr, &addrlen);
         if (socket_fd_web == (-1))
         {
            printf(" ERR:socket_fd_web accept=%d errlog=%d ",socket_fd_web,errno);
            close(web_listen_sockfd);
            break;
         }

         //=====链接建立，循环等待接收
         curRecePos = 0;
         do
         {
            /* 阻塞接收客户端数据报文. */
            rcvlen= recv(socket_fd_web,&httpReceBuf[curRecePos],sizeof(httpReceBuf)-curRecePos,0);//MSG_DONTWAIT
            printf(" recv return len=%d ",rcvlen);
            if(rcvlen>0)
            {
                  curRecePos=curRecePos+rcvlen;
                  httpReceBuf[curRecePos]=0;  //增加字符串解锁标识
                  if((0==IsDataRecvFinish(httpReceBuf))||(curRecePos>=sizeof(httpReceBuf)))
               {
                     processhttpdata(curRecePos);
                     curRecePos=0;
               }
            }
            else
            {
                  printf(" ERR:recv return len<=0 ");
                  printf(" err log =%d ",errno);
                  curRecePos = 0;
            }
         } while (rcvlen >0);
         closesocket(socket_fd_web);
      }
      close(web_listen_sockfd);
      printf(" HttpServer close listenSockfd ");
}
}
/*打包网页HTML信息*/
******************************************************************************************************/
int web_server_packet_cfg_page_html(char *out_pack_buff)
{
out_pack_buff[0] = 0;

/*网页文件头部*/
sprintf(out_pack_buff+strlen(out_pack_buff),"<HTML><head><title>网络通信参数</title><meta http-equiv="Content-Type" content="text/html; charset=gb2312" /></head><body>");
sprintf(out_pack_buff+strlen(out_pack_buff),"<div style="width: 400px; height: 300px; position:absolute; left: 50%;top: 50%;">");
sprintf(out_pack_buff+strlen(out_pack_buff),"<form name="NetcardPage" action="" method="POST">");
sprintf(out_pack_buff+strlen(out_pack_buff),"<table style="width: 400px; border-collapse: collapse;">");

/*信息内容*/
/*本地IP*/
sprintf(out_pack_buff+strlen(out_pack_buff),"<tr style="border: black 1px solid; height: 3px; font-size: 14px;"><td>本  地IP:</td>");
sprintf(out_pack_buff+strlen(out_pack_buff),"<td><input name="IP1addr1" type="text" size="3" maxlength="3" value="%d">.", cfgdata.local_ip[0]);
sprintf(out_pack_buff+strlen(out_pack_buff),"<input name="IP1addr2" type="text" size="3" maxlength="3" value="%d">.", cfgdata.local_ip[1]);
sprintf(out_pack_buff+strlen(out_pack_buff),"<input name="IP1addr3" type="text" size="3" maxlength="3" value="%d">.", cfgdata.local_ip[2]);
sprintf(out_pack_buff+strlen(out_pack_buff),"<input name="IP1addr4" type="text" size="3" maxlength="3" value="%d"></td></tr>",  cfgdata.local_ip[3]);

/*子网掩码*/
sprintf(out_pack_buff+strlen(out_pack_buff),"<tr style="border: black 1px solid; height: 30px; font-size: 14px;"><td>子网掩码:</td>");
sprintf(out_pack_buff+strlen(out_pack_buff),"<td><input name="IP1Mask1" type="text" size="3" maxlength="3" value="%d">.", cfgdata.sub_mask[0]);
sprintf(out_pack_buff+strlen(out_pack_buff),"<input name="IP1Mask2" type="text" size="3" maxlength="3" value="%d">.", cfgdata.sub_mask[1]);
sprintf(out_pack_buff+strlen(out_pack_buff),"<input name="IP1Mask3" type="text" size="3" maxlength="3" value="%d">.", cfgdata.sub_mask[2]);
sprintf(out_pack_buff+strlen(out_pack_buff),"<input name="IP1Mask4" type="text" size="3" maxlength="3" value="%d"></td></tr>", cfgdata.sub_mask[3]);

/*网关*/
sprintf(out_pack_buff+strlen(out_pack_buff),"<tr style="border: black 1px solid; height: 30px; font-size: 14px;"><td>网关:</td>");
sprintf(out_pack_buff+strlen(out_pack_buff),"<td><input name="IP1GateWay1" type="text" size="3" maxlength="3" value="%d">.", cfgdata.gate_way[0]);
sprintf(out_pack_buff+strlen(out_pack_buff),"<input name="IP1GateWay2" type="text" size="3" maxlength="3" value="%d">.", cfgdata.gate_way[1]);
sprintf(out_pack_buff+strlen(out_pack_buff),"<input name="IP1GateWay3" type="text" size="3" maxlength="3" value="%d">.", cfgdata.gate_way[2]);
sprintf(out_pack_buff+strlen(out_pack_buff),"<input name="IP1GateWay4" type="text" size="3" maxlength="3" value="%d"></td></tr>", cfgdata.gate_way[3]);

/*本地端口*/
sprintf(out_pack_buff+strlen(out_pack_buff),"<tr style="border: black 1px solid; height: 30px; font-size: 14px;"><td>本地端口:</td>");
sprintf(out_pack_buff+strlen(out_pack_buff),"<td><input name="LocalPort" type="text" size="5" maxlength="5" value="%d"></td></tr>", cfgdata.local_port);

/*远方IP*/
sprintf(out_pack_buff+strlen(out_pack_buff),"<tr style="border: black 1px solid; height: 30px; font-size: 14px;"><td>远方IP:</td>");
sprintf(out_pack_buff+strlen(out_pack_buff),"<td><input name="IP1Ser1" type="text" size="3" maxlength="3" value="%d">.", cfgdata.remote_ip[0]);
sprintf(out_pack_buff+strlen(out_pack_buff),"<input name="IP1Ser2" type="text" size="3" maxlength="3" value="%d">.", cfgdata.remote_ip[1]);
sprintf(out_pack_buff+strlen(out_pack_buff),"<input name="IP1Ser3" type="text" size="3" maxlength="3" value="%d">.", cfgdata.remote_ip[2]);
sprintf(out_pack_buff+strlen(out_pack_buff),"<input name="IP1Ser4" type="text" size="3" maxlength="3" value="%d"></td></tr>", cfgdata.remote_ip[3]);

/*远方端口*/
sprintf(out_pack_buff+strlen(out_pack_buff),"<tr style="border: black 1px solid; height: 30px; font-size: 14px;"><td>远方端口:</td>");
sprintf(out_pack_buff+strlen(out_pack_buff),"<td><input name="RemotePort" type="text" size="5" maxlength="5" value="5000"></td></tr>", cfgdata.remote_port);

/*协议类型*/
sprintf(out_pack_buff+strlen(out_pack_buff),"<tr style="border: black 1px solid; height: 30px; font-size: 14px;"><td>通信协议:</td>");
sprintf(out_pack_buff+strlen(out_pack_buff),"<td><select name="ProcType">");
if(cfgdata.proc_type==1)
{
      sprintf(out_pack_buff+strlen(out_pack_buff),"<option value="1" selected="selected">UDP</option>");
      sprintf(out_pack_buff+strlen(out_pack_buff),"<option value="2" >TCP_SERVER</option>");
      sprintf(out_pack_buff+strlen(out_pack_buff),"<option value="3">TCP_CLIENT</option>");
}
else if(cfgdata.proc_type==3)
{
      sprintf(out_pack_buff+strlen(out_pack_buff),"<option value="1">UDP</option>");
      sprintf(out_pack_buff+strlen(out_pack_buff),"<option value="2">TCP_SERVER</option>");
      sprintf(out_pack_buff+strlen(out_pack_buff),"<option value="3" selected="selected">TCP_CLIENT</option>");
}
else
{
      sprintf(out_pack_buff+strlen(out_pack_buff),"<option value="1">UDP</option>");
      sprintf(out_pack_buff+strlen(out_pack_buff),"<option value="2" selected="selected">TCP_SERVER</option>");
      sprintf(out_pack_buff+strlen(out_pack_buff),"<option value="3">TCP_CLIENT</option>");
}
sprintf(out_pack_buff+strlen(out_pack_buff),"</select></td></tr>");

/*尾部*/
sprintf(out_pack_buff+strlen(out_pack_buff),"<tr><td style="height: 40px; text-align: center;" colspan="2"><input name="save" type="submit" value="保存">");
sprintf(out_pack_buff+strlen(out_pack_buff),"   <input name="reset" type="reset" value="重置"></td></tr></table></form></div></BODY></HTML>");

return strlen(out_pack_buff);
}

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18条回答

maoxue121225

2020-01-13 10:46

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