Python学习笔记(九) -- Python HttpClient使用requests库发送http消息

# -*- coding: utf-8 -*-
"""
Python Httpclient for Sending http requests
"""
import os
import json
import requests

class HttpClient(object):
def __init__(self,
host='localhost',
port=80,
ssl=False,
verify_ssl=False,
timeout=5,
):
"""Construct a new HttpClient."""
self._host = host
self._port = port
self._timeout = timeout

self._verify_ssl = verify_ssl

self._scheme = "http"

if ssl is True:
self._scheme = "https"

self._baseurl = "{0}://{1}:{2}".format(
self._scheme,
self._host,
self._port)

self._headers = {
'Content-type': 'application/json',
}

def request(self, url, method='GET', params=None, data=None, headers=None):
url = "{0}{1}".format(self._baseurl, url)
if headers is None:
headers = self._headers

if params is None:
params = {}

if isinstance(data, (dict, list)):
data = json.dumps(data)

for i in range(0, 3):
try:
response = requests.request(
method=method,
url=url,
params=params,
data=data,
headers=headers,
verify=self._verify_ssl,
timeout=self._timeout
)
break
except requests.exceptions.ConnectionError as e:
if i < 2:
continue
else:
raise e

return response

if __name__ == '__main__':
client = HttpClient('www.baidu.com', 80)
body = dict(
)

resp = client.request("/", method="GET", data=body, headers={"Content-Type":"application/json"})
print resp.status_code
print resp.content