1、无参数直接get

>>> import requests>>> r  = requests.get("http://httpbin.org/get")>>> r.status_code200>>> print(r.text){  "args": {},   "headers": {    "Accept": "*/*",     "Accept-Encoding": "gzip, deflate",     "Host": "httpbin.org",     "User-Agent": "python-requests/2.9.1"  },   "origin": "110.184.65.255",   "url": "http://httpbin.org/get"}

 

同时支持json直接获取json解码后结果

>>> r.json(){
    'args': {}, 'origin': '110.184.65.255', 'url': 'http://httpbin.org/get', 'headers': {
   'Accept': '*/*', 'Accept-Encoding': 'gzip, deflate', 'Host': 'httpbin.org', 'User-Agent': 'python-requests/2.9.1'}}

 

2、有参数的get，制定params的参数的值。

>>> payload = {
   'name':'felix','password':'12345678'}>>> r = requests.get('http://httpbin.org/get',params=payload)>>> print(r.url)http://httpbin.org/get?name=felix&password=12345678>>> r.status_code200>>> print(r.text){  "args": {    "name": "felix",     "password": "12345678"  },   "headers": {    "Accept": "*/*",     "Accept-Encoding": "gzip, deflate",     "Host": "httpbin.org",     "User-Agent": "python-requests/2.9.1"  },   "origin": "110.184.65.255",   "url": "http://httpbin.org/get?name=felix&password=12345678"}

可以用r.url打印生成的url.

3、修改HTTP头内容

>>> headers={
   'user-agent':"IE9.0"}>>> r = requests.get("http://httpbin.org/get",headers=headers)

 

4、POST方法, form格式

>>> payload{
    'name': 'felix', 'password': '12345678'}>>> r = requests.post("http://httpbin.org/post",data=payload)>>> r.status_code200>>> print(r.text){  "args": {},   "data": "",   "files": {},   "form": {    "name": "felix",     "password": "12345678"  },   "headers": {    "Accept": "*/*",     "Accept-Encoding": "gzip, deflate",     "Content-Length": "28",     "Content-Type": "application/x-www-form-urlencoded",     "Host": "httpbin.org",     "User-Agent": "python-requests/2.9.1"  },   "json": null,   "origin": "110.184.65.255",   "url": "http://httpbin.org/post"}

json格式

>>> r = requests.post("http://httpbin.org/post",json=payload,headers=headers)>>> print(r.text){  "args": {},   "data": "{\"name\": \"felix\", \"password\": \"12345678\"}",   "files": {},   "form": {},   "headers": {    "Accept": "*/*",     "Accept-Encoding": "gzip, deflate",     "Content-Length": "41",     "Content-Type": "application/json",     "Host": "httpbin.org",     "User-Agent": "IE9.0"  },   "json": {    "name": "felix",     "password": "12345678"  },   "origin": "110.184.65.255",   "url": "http://httpbin.org/post"}

 

字符串格式：

r = requests.post('http://httpbin.org/post', data=json.dumps(payload))

 

5、超时

>>> r=requests.get("https://www.baidu.com",timeout=0.1)>>> r=requests.get("https://www.baidu.com",timeout=0.005)Traceback (most recent call last):  File "C:\Python34\lib\site-packages\requests\packages\urllib3\connection.py", line 137, in _new_conn

Errors and Exceptions

In the event of a network problem (e.g. DNS failure, refused connection, etc), Requests will raise aConnectionError exception.

In the rare event of an invalid HTTP response, Requests will raise an HTTPError exception.

If a request times out, a Timeout exception is raised.

If a request exceeds the configured number of maximum redirections, a TooManyRedirects exception is raised.

All exceptions that Requests explicitly raises inherit from requests.exceptions.RequestException.

 

更多信息详见：