Python-爬虫-请求数据-url编码和解码

你的名字 2021-10-13 03:22 387阅读 0赞

## urlencode函数 ##

浏览器中包含汉字，需要编码

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2xpbmRhaTMyOQ_size_16_color_FFFFFF_t_70][]

错误源码：

查询语句有中文成功，在浏览器中ascII不支持

from urllib import request
    
    resp = request.urlopen('http://www.sina.com.cn/mid/search.shtml?range=all&c=news&q=成功&from=home&ie=utf-8')
    print(resp.read())

结果报错：

编码错误

![20190821143917123.png][]

正确源码：

对电箱的编码

from urllib import request
    from urllib import parse
    
    # 把请求对象转换成为网页编码
    data = {'q':'成功'}
    qr = parse.urlencode(data)
    
    # 拼接url
    url = 'http://www.sina.com.cn/mid/search.shtml?range=all&c=news&' + qr +'&from=home&ie=utf-8'
    
    # 请求网页
    resp = request.urlopen(url)
    print(resp.read())

正确输出：

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2xpbmRhaTMyOQ_size_16_color_FFFFFF_t_70 1][]

补充内容：

对字符串的编码

![20190821153937693.png][]

## 解码parse\_qs函数：![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2xpbmRhaTMyOQ_size_16_color_FFFFFF_t_70 2][] ##

针对字典的解码

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2xpbmRhaTMyOQ_size_16_color_FFFFFF_t_70]: /images/20211013/5a59ee403cef4203920d120ea8dcd6df.png
[20190821143917123.png]: /images/20211013/dfdb04809fc541d9a862bf6c528f4df7.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2xpbmRhaTMyOQ_size_16_color_FFFFFF_t_70 1]: /images/20211013/2f914fe506a24f27b18803075e122150.png
[20190821153937693.png]: /images/20211013/3ce08f36e328482b9c0dfc454e594a44.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2xpbmRhaTMyOQ_size_16_color_FFFFFF_t_70 2]: /images/20211013/1f8a656a217b46fba30e956d572dfdfe.png