Other Parts Discussed in Thread: CC3100
想用CC3100连接到openweathermap.org上获取实时天气，但输出结果显示该http链接已移除（301 Moved Permanently），需要采用https来获取天气信息。
请问如何修改代码才能改为https连接呢？
代码如下：
#define REQUEST "GET /data/2.5/weather?q=London,uk&APPID=1234567890abcdef1234567890abcdef&units=metric HTTP/1.1\r\nUser-Agent: Keil\r\nHost:api.openweathermap.org\r\nAccept: */*\r\n\r\n"
int main(void){int32_t retVal; SlSecParams_t secParams;
char *pConfig = NULL; INT32 ASize = 0; SlSockAddrIn_t Addr;
initClk(); // PLL 50 MHz
UART_Init(); // Send data to PC, 115200 bps
LED_Init(); // initialize LaunchPad I/O
UARTprintf("Weather App\n");
retVal = configureSimpleLinkToDefaultState(pConfig); // set policies
if(retVal < 0)Crash(4000000);
retVal = sl_Start(0, pConfig, 0);
if((retVal < 0) || (ROLE_STA != retVal) ) Crash(8000000);
secParams.Key = PASSKEY;
secParams.KeyLen = strlen(PASSKEY);
secParams.Type = SEC_TYPE; // OPEN, WPA, or WEP
sl_WlanConnect(SSID_NAME, strlen(SSID_NAME), 0, &secParams, 0);
while((0 == (g_Status&CONNECTED)) || (0 == (g_Status&IP_AQUIRED))){
_SlNonOsMainLoopTask();
}
UARTprintf("Connected\n");
while(1){
strcpy(HostName,"openweathermap.org");
retVal = sl_NetAppDnsGetHostByName(HostName,
strlen(HostName),&DestinationIP, SL_AF_INET);
if(retVal == 0){
Addr.sin_family = SL_AF_INET;
Addr.sin_port = sl_Htons(80);
Addr.sin_addr.s_addr = sl_Htonl(DestinationIP);// IP to big endian
ASize = sizeof(SlSockAddrIn_t);
SockID = sl_Socket(SL_AF_INET,SL_SOCK_STREAM, 0);
if( SockID >= 0 ){
retVal = sl_Connect(SockID, ( SlSockAddr_t *)&Addr, ASize);
}
if((SockID >= 0)&&(retVal >= 0)){
strcpy(SendBuff,REQUEST);
sl_Send(SockID, SendBuff, strlen(SendBuff), 0);// Send the HTTP GET
sl_Recv(SockID, Recvbuff, MAX_RECV_BUFF_SIZE, 0);// Receive response
sl_Close(SockID);
LED_GreenOn();
UARTprintf("\r\n\r\n");
UARTprintf(Recvbuff); UARTprintf("\r\n");
}
}
while(Board_Input()==0){}; // wait for touch
LED_GreenOff();
}
}
输出如下：
Weather App Connected HTTP/1.1 301 Moved Permanently Server: openresty/1.9.7.1 Date: Fri, 18 Mar 2022 22:15:03 GMT Content-Type: text/html Content-Length: 190 Connection: keep-alive Location: https://agromonitoring.com/data/2.5/weather?q=AustinERRORexas&APPID=1234567890abcdef1234567890abcdef&units=metric <html> <head><title>301 Moved Permanently</title></head> <body bgcolor="white"> <center><h1>301 Moved Permanently</h1></center> <hr><center>openresty/1.9.7.1</center> </body> </html>
