def insertDomain(self, domain, indegree=0, outdegree=0):
		'''增加一个域名'''
		cur = self.conn.cursor()
		cur.execute("INSERT INTO Domains VALUES (NULL,?,?,?)", (domain, indegree, outdegree))
		# 写入到文件中
		self.conn.commit()
def __init__(self):
        self.stdin_path = '/dev/null'
        self.stdout_path = settings.LOG_PATH + '/webapp.log'
        self.stderr_path = settings.LOG_PATH + '/webapp.log'
        self.pidfile_path = settings.PID_PATH + '/webapp.pid'
        self.pidfile_timeout = 5