@Override
    public boolean equals(final Object o) {
        if (this == o) {
            return true;
        }
        if (Objects.isNull(o) || getClass() != o.getClass()) {
            return false;
        }
        if (!super.equals(o)) {
            return false;
        }
        ScaleHistoryDO that = (ScaleHistoryDO) o;
        return Objects.equals(configId, that.configId) && Objects.equals(num, that.num) && Objects.equals(action, that.action) && Objects.equals(msg, that.msg);
    }
Sets the msg.

@param msg msg
shenyu-admin/src/main/java/org/apache/shenyu/admin/model/entity/ScaleHistoryDO.java