修复级联无通道时更新停止在等待更新的问题

648540858

2022-07-25 91dc4566a26862abef9aa2352d2ddf2279e5e8e8

 src/main/java/com/genersoft/iot/vmp/gb28181/utils/SipUtils.java

@@ -25,6 +25,9 @@
     * */
    public static String getChannelIdFromHeader(Request request) {
        Header subject = request.getHeader("subject");
        if (subject == null) {
            return null;
        }
        return ((Subject) subject).getSubject().split(":")[0];
    }