arischow/flask-mutilple-routes.py

## flask-mutilple-routes.py
# Check http://stackoverflow.com/questions/17285826/flask-redirecting-multiple-routes for more details.

## flask-subdomain.py
from flask import Flask

app = Flask(__name__)
app.config['SERVER_NAME'] = 'aris.local:5000'

@app.route('/')
def helloworld():
    return 'Hello World!'

@app.route('/', subdomain='fuck')
def shit():
    return 'Hello JavaShit!'

if __name__ == '__main__':
    app.run(debug=True)

# Before opening it, you should edit your hosts file as follows:
# 127.0.0.1     aris.local
# 127.0.0.1     fuck.aris.local
# Now you can open http://aris.local:5000 and http://fuck.aris.local:5000 to get the results

## flask-upload-example.py
import os

from flask import Flask
from flask import request
from flask import flash
from flask import redirect
from flask import url_for
from werkzeug.utils import secure_filename

FILE_DIRECTORY = os.path.dirname(os.path.abspath(__file__)) # .py 文件的所在目录
UPLOAD_FOLDER = FILE_DIRECTORY + '/static/uploads'          # 请在 static 内创建 uploads 文件夹，否则会报错
ALLOWED_EXTENSIONS = set(['png', 'jpg', 'jpeg', 'gif'])     # 仅限图片

app = Flask(__name__)
app.config['UPLOAD_FOLDER'] = UPLOAD_FOLDER

def allowed_file(filename):
    return '.' in filename and \
           filename.rsplit('.', 1)[1] in ALLOWED_EXTENSIONS

@app.route('/', methods=['GET', 'POST'])
def upload_file():
    if request.method == 'POST':
        # check if the post request has the file part
        if 'file' not in request.files:
            flash('No file part')
            return redirect(request.url)
        file = request.files['file']
        # print('request.files:', request.files)                   # ImmutableMultiDict
        # print('request.files['file']:', file)                    # FileStorage Class
        # print('request.files['file'].filename:', file.filename)  # str
        # if user does not select file, browser also
        # submit a empty part without filename
        if file.filename == '':
            flash('No selected file')
            return redirect(request.url)
        if file and allowed_file(file.filename):
            filename = secure_filename(file.filename)
            file.save(os.path.join(app.config['UPLOAD_FOLDER'], filename))
            return redirect(url_for('uploaded_file',
                                    filename=filename))
    return '''
    <!doctype html>
    <title>Upload new File</title>
    <h1>Upload new File (Image Only)</h1>
    <form action="" method=post enctype=multipart/form-data>
      <p><input type=file name=file>
         <input type=submit value=Upload>
    </form>
    '''

@app.route('/success')
def uploaded_file():
    filename = request.args.get('filename')
    print(filename)
    # return render_template('succeeded.html', filename=filename)
    return '''
    <h1>You have successfully uploaded your file.</h1>
    <img src="/static/uploads/{}">
    '''.format(filename)


if __name__ == '__main__':
    app.run(debug=True)
	from flask import Flask

	app = Flask(__name__)
	app.config['SERVER_NAME'] = 'aris.local:5000'

	@app.route('/')
	def helloworld():
	return 'Hello World!'

	@app.route('/', subdomain='fuck')
	def shit():
	return 'Hello JavaShit!'

	if __name__ == '__main__':
	app.run(debug=True)

	# Before opening it, you should edit your hosts file as follows:
	# 127.0.0.1 aris.local
	# 127.0.0.1 fuck.aris.local
	# Now you can open http://aris.local:5000 and http://fuck.aris.local:5000 to get the results
	import os

	from flask import Flask
	from flask import request
	from flask import flash
	from flask import redirect
	from flask import url_for
	from werkzeug.utils import secure_filename

	FILE_DIRECTORY = os.path.dirname(os.path.abspath(__file__)) # .py 文件的所在目录
	UPLOAD_FOLDER = FILE_DIRECTORY + '/static/uploads' # 请在 static 内创建 uploads 文件夹，否则会报错
	ALLOWED_EXTENSIONS = set(['png', 'jpg', 'jpeg', 'gif']) # 仅限图片

	app = Flask(__name__)
	app.config['UPLOAD_FOLDER'] = UPLOAD_FOLDER

	def allowed_file(filename):
	return '.' in filename and \
	filename.rsplit('.', 1)[1] in ALLOWED_EXTENSIONS

	@app.route('/', methods=['GET', 'POST'])
	def upload_file():
	if request.method == 'POST':
	# check if the post request has the file part
	if 'file' not in request.files:
	flash('No file part')
	return redirect(request.url)
	file = request.files['file']
	# print('request.files:', request.files) # ImmutableMultiDict
	# print('request.files['file']:', file) # FileStorage Class
	# print('request.files['file'].filename:', file.filename) # str
	# if user does not select file, browser also
	# submit a empty part without filename
	if file.filename == '':
	flash('No selected file')
	return redirect(request.url)
	if file and allowed_file(file.filename):
	filename = secure_filename(file.filename)
	file.save(os.path.join(app.config['UPLOAD_FOLDER'], filename))
	return redirect(url_for('uploaded_file',
	filename=filename))
	return '''
	<!doctype html>
	<title>Upload new File</title>
	<h1>Upload new File (Image Only)</h1>
	<form action="" method=post enctype=multipart/form-data>
	<p><input type=file name=file>
	<input type=submit value=Upload>
	</form>
	'''

	@app.route('/success')
	def uploaded_file():
	filename = request.args.get('filename')
	print(filename)
	# return render_template('succeeded.html', filename=filename)
	return '''
	<h1>You have successfully uploaded your file.</h1>
	<img src="/static/uploads/{}">
	'''.format(filename)


	if __name__ == '__main__':
	app.run(debug=True)