public void setShardField(String shardField) {
        if (StringUtils.isNotEmpty(shardField)) {
            this.shardField = shardField;
        }
    }
@author Robert HG (254963746@qq.com) on 10/20/15.
lts-spring/src/main/java/com/github/ltsopensource/spring/tasktracker/JobDispatcher.java