add: http support http 2.0 server

restagent/restagent.go

@@ -23,6 +23,7 @@ import (
 	"ems.agt/src/framework/middleware"
 	libSession "ems.agt/src/lib_features/session"
 	"github.com/gin-gonic/gin"
+	"golang.org/x/net/http2"
 )
 
 // const defaultConfigFile = "./etc/restconf.yaml"
@@ -108,6 +109,9 @@ func HttpListenConfigTLS(addr, caFile, certFile, keyFile string, clientAuthType
 		TLSConfig: tlsConfig,
 	}
 
+	// support http 2.0 server
+	http2.ConfigureServer(server, &http2.Server{})
+
 	err = server.ListenAndServeTLS(certFile, keyFile)
 	if err != nil {
 		fmt.Println("ListenAndServeTLS err:", err)