flask 第一章

Upload.py

 1 #!/usr/bin/env python
 2 #coding=utf-8
 3 import os
 4 from flask import Flask, request, redirect, url_for,render_template
 5 from werkzeug.utils import secure_filename
 6 
 7 UPLOAD_FOLDER = '/static/uploads'
 8 ALLOWED_EXTENSIONS = set(['txt', 'pdf', 'png', 'jpg', 'jpeg', 'gif'])
 9 
10 app=Flask(__name__)
11 app.config['UPLOAD_FOLDER'] = UPLOAD_FOLDER
12 
13 def allowed_file(filename):
14     return '.' in filename and \
15            filename.rsplit('.', 1)[1] in ALLOWED_EXTENSIONS
16 
17 @app.route('/', methods=['GET', 'POST'])
18 def upload_file():
19     if request.method == 'POST':
20         file = request.files['file']
21         if file and allowed_file(file.filename):
22             filename = secure_filename(file.filename)
23             file.save(os.path.join(app.config['UPLOAD_FOLDER'], filename))
24             return redirect(url_for('uploaded_file',
25                                     filename=filename))
26     return render_template('upload.html')
27 
28 if __name__=='__main__':
29     
30     app.run('0.0.0.0',80,debug=True)
Upload

index.py

 1 #!/usr/bin/env python
 2 #coding=utf-8
 3 
 4 from flask import Flask,render_template,request
 5 
 6 app=Flask(__name__)
 7 
 8 @app.route('/')
 9 def index():
10     #return "Hello,world!"
11     menu_list=[u'首页',u'简介',u'产品展示',u'视频教程',u'关于',u'联系我们']
12     return render_template('home.html',menu_list=menu_list)
13 
14 @app.route('/home/<username>')
15 def home(username):
16     return 'Your name is %s !' %username
17 
18 @app.route('/page/')
19 def page():
20     return 'Your name is page!' 
21 
22 @app.route('/about/')
23 def about():
24     return 'About!' 
25 
26 @app.route('/login/',methods=['GET','POST'])
27 def login():
28     if request.method=='POST':
29         print request.form['menuname']
30     else:
31         print 'get'
32     return render_template('login.html')
33 
34 with app.test_request_context():
35     pass
36 
37 if __name__=='__main__':
38     #app.debug=True
39     app.run('0.0.0.0',80)
index

home.html

 1 <html>
 2     <head>
 3         <meta charset='utf-8'>
 4         <title>Home</title>
 5     </head>
 6     <body>
 7         <header>
 8             <nav>
 9                 <ul>
10                     {% for menu in menu_list%}
11                     <li>{{ menu }}</li>
12                     {% endfor %}
13                 </ul>
14             </nav>
15         </header>
16         
17     </body>
18 </html>
View Code

upload.html

1 <!doctype html>
2     <title>Upload new File</title>
3     <h1>Upload new File</h1>
4     <form action="" method=post enctype=multipart/form-data>
5         <input type=file name=file>
6         <input type=submit value=Upload>
7     </form>
View Code

login.html

1 <meta charset='utf-8'>
2 <title>login</title>
3 <div>
4     <form action="" method="post">
5         <input type="text" name='menuname'>
6         <input type="submit" value="提交">
7     </form>
8 </div>
View Code

sourct_filename.py

 1 def secure_filename(filename):
 2         r"""Pass it a filename and it will return a secure version of it.  This
 3         filename can then safely be stored on a regular file system and passed
 4         to :func:`os.path.join`.  The filename returned is an ASCII only string
 5         for maximum portability.
 6 
 7         On windows system the function also makes sure that the file is not
 8         named after one of the special device files.
 9 
10         >>> secure_filename("My cool movie.mov")
11         'My_cool_movie.mov'
12         >>> secure_filename("../../../etc/passwd")
13         'etc_passwd'
14         >>> secure_filename(u'i contain cool \xfcml\xe4uts.txt')
15         'i_contain_cool_umlauts.txt'
16 
17         The function might return an empty filename.  It's your responsibility
18         to ensure that the filename is unique and that you generate random
19         filename if the function returned an empty one.
20 
21         .. versionadded:: 0.5
22 
23         :param filename: the filename to secure
24      """
25         if isinstance(filename, text_type):
26             from unicodedata import normalize
27             filename = normalize('NFKD', filename).encode('ascii', 'ignore')
28             if not PY2:
29                 filename = filename.decode('ascii')
30         for sep in os.path.sep, os.path.altsep:
31             if sep:
32                 filename = filename.replace(sep, ' ')
33         filename = str(_filename_ascii_strip_re.sub('', '_'.join(
34                     filename.split()))).strip('._')
35 
36         # on nt a couple of special files are present in each folder.  We
37         # have to ensure that the target file is not such a filename.  In
38         # this case we prepend an underline
39         if os.name == 'nt' and filename and \
40         filename.split('.')[0].upper() in _windows_device_files:
41             filename = '_' + filename
42 
43         return filename
View Code

 

posted @ 2014-09-17 17:28  爱在夕阳下  阅读(156)  评论(0)  编辑  收藏  举报