fix

services/httpaccess/actions.go

@@ -169,14 +169,14 @@ func AuthDevice(args DeviceAuthArgs, r render.Render) {
 	}
 
 	var hosts []string
-	switch args.Protocol {
+	switch strings.ToLower(args.Protocol) {
 	case "http":
 		hosts, err = server.GetServerHosts(strings.ToUpper(args.Protocol)+"Access", "httphost")
 	case "mqtt":
 		hosts, err = server.GetServerHosts(strings.ToUpper(args.Protocol)+"Access", "tcphost")
 	case "coap":
 		hosts, err = server.GetServerHosts(strings.ToUpper(args.Protocol)+"Access", "udphost")
-	case "mqttX": // TODO: 增加配置文件支持
+	case "mqttx": // TODO: 增加配置文件支持
 		hosts = []string{
 			"114.115.251.196:1883",
 		}