}
public void start() {
log.info("Spider started");
isStop = false;
httpSender = new HttpSender(connectionParam, true);
httpSender.setFollowRedirect(true);
for (int i = 0; i < spiderThread.length; i++) {
if (spiderThread[i] != null && spiderThread[i].isAlive()) {
spiderThread[i].setStop(true);