python笔记系列：探测web服务质量方法：pycurl

探测web服务质量方法：pycurleasy_install pycurl #easy_install安装方法pip install pycurl #pip安装方法源码安装方法：(要求curl-config包支持，需要源码方式重新安装curl)wget http://curl.haxx.se/download/curl-7.36.0.tar.gztar -zxvf curl-7.36.0.tar.gzcd curl-7.36.0./configuremake && make installexport LD_LIBRARY_PATH=/usr/local/libwget https://pypi.python.org/packages/source/p/pycurl/pycrul-7.19.3.1.tar.gz --no-check-certificatetar -zxvf pycrul-7.19.3.1.tar.gzcd pycrul-7.19.3.1python setup.py install --curl-config=/usr/local/bin/curl-config
校验安装结果：import pycurlpycurl.version
pycurl.Curl()类实现创建一个libcurl包的Curl句柄对象，无参数。Curl几个常用方法：close() 对应libcurl包中的curl_easy_cleanup方法 无参数perform() 对应libcurl包中的curl_easy_perform方法 无参数setopt(option,value) 对应libcurl包中的curl_easy_setopt方法，参数option通过libcurl的常量指定getinfo(option) 对应libcurl包中的curl_easy_getinfo方法
实践：实现探测web服务质量（服务可用性、响应速度）# -*- coding: utf-8 -*-import os,sysimport timeimport sysimport pycurl
URL="http://www.novowater.com.cn"c = pycurl.Curl()c.setopt(pycurl.URL, URL) #连接超时时间,5秒c.setopt(pycurl.CONNECTTIMEOUT, 5)
#下载超时时间,5秒c.setopt(pycurl.TIMEOUT, 5)c.setopt(pycurl.FORBID_REUSE, 1)c.setopt(pycurl.MAXREDIRS, 1)c.setopt(pycurl.NOPROGRESS, 1)c.setopt(pycurl.DNS_CACHE_TIMEOUT,30)indexfile = open(os.path.dirname(os.path.realpath(__file__))+"/content.txt", "wb")c.setopt(pycurl.WRITEHEADER, indexfile)c.setopt(pycurl.WRITEDATA, indexfile)try: c.perform()except Exception,e: print "connecion error:"+str(e) indexfile.close() c.close() sys.exit()
NAMELOOKUP_TIME = c.getinfo(c.NAMELOOKUP_TIME)CONNECT_TIME = c.getinfo(c.CONNECT_TIME)PRETRANSFER_TIME = c.getinfo(c.PRETRANSFER_TIME)STARTTRANSFER_TIME = c.getinfo(c.STARTTRANSFER_TIME)TOTAL_TIME = c.getinfo(c.TOTAL_TIME)HTTP_CODE = c.getinfo(c.HTTP_CODE)SIZE_DOWNLOAD = c.getinfo(c.SIZE_DOWNLOAD)HEADER_SIZE = c.getinfo(c.HEADER_SIZE)SPEED_DOWNLOAD=c.getinfo(c.SPEED_DOWNLOAD)
print "HTTP状态码：%s" %(HTTP_CODE)print "DNS解析时间：%.2f ms"%(NAMELOOKUP_TIME
4000
*1000)print "建立连接时间：%.2f ms" %(CONNECT_TIME*1000)print "准备传输时间：%.2f ms" %(PRETRANSFER_TIME*1000)print "传输开始时间：%.2f ms" %(STARTTRANSFER_TIME*1000)print "传输结束总时间：%.2f ms" %(TOTAL_TIME*1000)
print "下载数据包大小：%d bytes/s" %(SIZE_DOWNLOAD)print "HTTP头部大小：%d byte" %(HEADER_SIZE)print "平均下载速度：%d bytes/s" %(SPEED_DOWNLOAD)
indexfile.close()c.close()
探测web服务质量方法：pycurleasy_install pycurl #easy_install安装方法pip install pycurl #pip安装方法源码安装方法：(要求curl-config包支持，需要源码方式重新安装curl)wget http://curl.haxx.se/download/curl-7.36.0.tar.gztar -zxvf curl-7.36.0.tar.gzcd curl-7.36.0./configuremake && make installexport LD_LIBRARY_PATH=/usr/local/libwget https://pypi.python.org/packages/source/p/pycurl/pycrul-7.19.3.1.tar.gz --no-check-certificatetar -zxvf pycrul-7.19.3.1.tar.gzcd pycrul-7.19.3.1python setup.py install --curl-config=/usr/local/bin/curl-config
校验安装结果：import pycurlpycurl.version
pycurl.Curl()类实现创建一个libcurl包的Curl句柄对象，无参数。Curl几个常用方法：close() 对应libcurl包中的curl_easy_cleanup方法 无参数perform() 对应libcurl包中的curl_easy_perform方法 无参数setopt(option,value) 对应libcurl包中的curl_easy_setopt方法，参数option通过libcurl的常量指定getinfo(option) 对应libcurl包中的curl_easy_getinfo方法
实践：实现探测web服务质量（服务可用性、响应速度）# -*- coding: utf-8 -*-import os,sysimport timeimport sysimport pycurl
URL="http://www.novowater.com.cn"c = pycurl.Curl()c.setopt(pycurl.URL, URL) #连接超时时间,5秒c.setopt(pycurl.CONNECTTIMEOUT, 5)
#下载超时时间,5秒c.setopt(pycurl.TIMEOUT, 5)c.setopt(pycurl.FORBID_REUSE, 1)c.setopt(pycurl.MAXREDIRS, 1)c.setopt(pycurl.NOPROGRESS, 1)c.setopt(pycurl.DNS_CACHE_TIMEOUT,30)indexfile = open(os.path.dirname(os.path.realpath(__file__))+"/content.txt", "wb")c.setopt(pycurl.WRITEHEADER, indexfile)c.setopt(pycurl.WRITEDATA, indexfile)try: c.perform()except Exception,e: print "connecion error:"+str(e) indexfile.close() c.close() sys.exit()
NAMELOOKUP_TIME = c.getinfo(c.NAMELOOKUP_TIME)CONNECT_TIME = c.getinfo(c.CONNECT_TIME)PRETRANSFER_TIME = c.getinfo(c.PRETRANSFER_TIME)STARTTRANSFER_TIME = c.getinfo(c.STARTTRANSFER_TIME)TOTAL_TIME = c.getinfo(c.TOTAL_TIME)HTTP_CODE = c.getinfo(c.HTTP_CODE)SIZE_DOWNLOAD = c.getinfo(c.SIZE_DOWNLOAD)HEADER_SIZE = c.getinfo(c.HEADER_SIZE)SPEED_DOWNLOAD=c.getinfo(c.SPEED_DOWNLOAD)
print "HTTP状态码：%s" %(HTTP_CODE)print "DNS解析时间：%.2f ms"%(NAMELOOKUP_TIME*1000)print "建立连接时间：%.2f ms" %(CONNECT_TIME*1000)print "准备传输时间：%.2f ms" %(PRETRANSFER_TIME*1000)print "传输开始时间：%.2f ms" %(STARTTRANSFER_TIME*1000)print "传输结束总时间：%.2f ms" %(TOTAL_TIME*1000)
print "下载数据包大小：%d bytes/s" %(SIZE_DOWNLOAD)print "HTTP头部大小：%d byte" %(HEADER_SIZE)print "平均下载速度：%d bytes/s" %(SPEED_DOWNLOAD)
indexfile.close()c.close()