Python的Bottle框架中实现最基本的get和post的方法的教程

1、GET方式：

    # -*- coding: utf-8 -*-
    #!/usr/bin/python
    # filename: GETPOST_test.py
    # codedtime: 2014-9-20 19:07:04


    import bottle

    def check_login(username, password):
      if username == '123' and password == '234':
        return True
      else:
        return False

    @bottle.route('/login')
    def login():
      if bottle.request.GET.get('do_submit','').strip(): #点击登录按钮
        # 第一种方式(latin1编码)
    ##    username = bottle.request.GET.get('username','').strip() # 用户名
    ##    password = bottle.request.GET.get('password','').strip() # 密码

        #第二种方式(获取username\password)(latin1编码)
        getValue = bottle.request.query_string
    ##    username = bottle.request.query['username'] # An utf8 string provisionally decoded as ISO-8859-1 by the server
    ##    password = bottle.request.query['password'] # 注：ISO-8859-1(即aka latin1编码)
        #第三种方式(获取UTF-8编码)
        username = bottle.request.query.username   # The same string correctly re-encoded as utf8 by bottle
        password = bottle.request.query.password   # The same string correctly re-encoded as utf8 by bottle

        print('getValue= '+getValue,
           '\r\nusername= '+username,
           '\r\npassword= '+password) # test

        if check_login(username, password):
          return "<p> Your login information was correct.</p>"
        else:
          return "<p>Login failed. </p>"
      else:
        return ''' <form action="/login" method="get">
               Username: <input name="username" type="text" />
               Password: <input name="password" type="password" />
               <input value="Login" name="do_submit" type="submit">
              </form>
            '''

    bottle.run(host='localhost', port=8083)

这里注意说一下Bottle编码的问题，只有第三种方式会将我们输入的字符如果是UTF-8重新编码为UTF-8,当你的内容里有中文或其他非英文字符时，这种方式就显的尤为重要。

运行效果如下：

2、POST方式：

    # -*- coding: utf-8 -*-
    #!/usr/bin/python
    # filename: GETPOST_test.py
    # codedtime: 2014-9-20 19:07:04


    import bottle

    def check_login(username, password):
      if username == '123' and password == '234':
        return True
      else:
        return False

    @bottle.route('/login')
    def login():
      return ''' <form action="/login" method="post">
             Username: <input name="username" type="text" />
             Password: <input name="password" type="password" />
             <input value="Login" type="submit">
            </form>
          '''

    @bottle.route('/login', method='POST')
    def do_login():
      # 第一种方式
    #  username = request.forms.get('username')
    #  password = request.forms.get('password')

      #第二种方式
      postValue = bottle.request.POST.decode('utf-8')
      username = bottle.request.POST.get('username')
      password = bottle.request.POST.get('password')


      if check_login(username, password):
        return "<p> Your login information was correct.</p>"
      else:
        return "<p>Login failed. </p>"

    bottle.run(host='localhost', port=8083)

登录网站、提交文章、评论等我们一般都会用POST方式而非GET方式，那么类似于第二种方式的编码就很用用处，能够正确的处理我们在Form中提交的内容。而第一种则可能会出现传说中的乱码问题，谨记！！！