优化sip消息构建，去除ServerTransaction的使用

648540858

2022-10-18 80d2edeef25f752e0a80a6cff99e38f61c2d2cb2

 src/main/java/com/genersoft/iot/vmp/conf/security/SecurityUtils.java

@@ -48,7 +48,7 @@
        Authentication authentication = getAuthentication();
        if(authentication!=null){
            Object principal = authentication.getPrincipal();
            if(principal!=null){
            if(principal!=null && !"anonymousUser".equals(principal)){
                LoginUser user = (LoginUser) authentication.getPrincipal();
                return user;
            }