#!/user/bin/env python#coding=utf-8import requestsimport datetimeimport timeimport threadingclass url_request():    times = []    error = []    def req(self,AppID,url):        myreq=url_request()        headers = {‘User-Agent‘ : ‘Mozilla/5.0 (Linux; Android 4.2.1; en-us; Nexus 4 Build/JOP40D) AppleWebKit/535.19 (KHTML, like Gecko) Chrome/18.0.1025.166 Mobile Safari/535.19‘}        payload = {‘AppID‘:AppID,‘CurrentURL‘:url}        r = requests.post("http://xx.xxx.com/WeiXinJSAccessToken/json/WeChatJSTicket",headers=headers,data=http://www.mamicode.com/payload)        ResponseTime=float(r.elapsed.microseconds)/1000 #获取响应时间，单位ms        myreq.times.append(ResponseTime) #将响应时间写入数组        if r.status_code !=200 :            myreq.error.append("0")if __name__==‘__main__‘:    myreq=url_request()    threads = []    starttime = datetime.datetime.now()    print "request start time %s" %starttime     nub = 50#设置并发线程数    ThinkTime = 0.5#设置思考时间    for i in range(1, nub+1):         t = threading.Thread(target=myreq.req, args=(‘12‘,‘http://m.ctrip.com/webapp/cpage/#mypoints‘))        threads.append(t)    for t in threads:        time.sleep(ThinkTime)         #print "thread %s" %t #打印线程        t.setDaemon(True)        t.start()    t.join()    endtime = datetime.datetime.now()    print "request end time %s" %endtime      time.sleep(3)    AverageTime = "{:.3f}".format(float(sum(myreq.times))/float(len(myreq.times))) #计算数组的平均值，保留3位小数    print "Average Response Time %s ms" %AverageTime #打印平均响应时间    usetime = str(endtime - starttime)    hour = usetime.split(‘:‘).pop(0)    minute = usetime.split(‘:‘).pop(1)    second = usetime.split(‘:‘).pop(2)    totaltime = float(hour)*60*60 + float(minute)*60 + float(second) #计算总的思考时间+请求时间    print "Concurrent processing %s" %nub #打印并发数    print "use total time %s s" %(totaltime-float(nub*ThinkTime)) #打印总共消耗的时间    print "fail request %s" %myreq.error.count("0") #打印错误请求数

request start time 2015-02-10 18:24:14.316000request end time 2015-02-10 18:24:39.769000Average Response Time 46.700 msConcurrent processing 50use total time 25.453 sfail request 1