'''get image size app'''
# coding=utf-8
import os
from flask import Flask, request, redirect, flash, render_template_string, get_flashed_messages
from PIL import Image
from werkzeug.utils import secure_filename
UPLOAD_FOLDER = '/tmp'
ALLOWED_EXTENSIONS = set(['png'])
app = Flask(__name__)
app.config['UPLOAD_FOLDER'] = UPLOAD_FOLDER
app.secret_key = 'test'
def get_img_size(filepath=""):
'''获取图片长宽'''
try:
img = Image.open(filepath)
img.load()
return img.size
except:
return (0, 0)
def allowed_file(filename):
'''判断文件后缀是否合法'''
return '.' in filename and \
filename.rsplit('.', 1)[1].lower() in ALLOWED_EXTENSIONS
@app.route('/', methods=['GET', 'POST'])
def upload_file():
'''文件上传app'''
if request.method == 'POST':
if 'file' not in request.files:
flash('No file part')
return redirect(request.url)
image_file = request.files['file']
if image_file.filename == '':
flash('No selected file')
return redirect(request.url)
if not allowed_file(image_file.filename):
flash('File type don\'t allowed')
return redirect(request.url)
if image_file:
filename = secure_filename(image_file.filename)
img_path = os.path.join(app.config['UPLOAD_FOLDER'], filename)
image_file.save(img_path)
height, width = get_img_size(img_path)
return 'the image\'s height : {}, width : {}; '\
.format(height, width)
return render_template_string('''
Upload new File
Upload new File
{% with messages = get_flashed_messages() %}
{% if messages %}
{% for message in messages %}
- {{ message }}
{% endfor %}
{% endif %}
{% endwith %}
''')
if __name__ == '__main__':
app.run(threaded=True, port=8000, host="0.0.0.0")