Thank you for your suggestion,I have cracked it already.
The reason could be like that: my war include a servlet,many threads will start when servlet init,and the servlet init as the jboss start.
the most important point is that : as threads(many threads will start when servlet init) start,they blocking many jboss inner threads。
It leads jboss http service can't be accessed normally。
So I change the servlet init configuration,many threads won't start when servlet init,It work,jboss http service can be accessed normally。
In a word,threads blocking the jboss inner threads,we must ensure jboss start completly.