flask-安裝-css樣式載入-cookie-session設定-上傳圖片檔案
阿新 • • 發佈：2018-12-16
from flask import Flask
app=Flask(__name__)
#開啟debug模式
app.config['DEBUG']=True
@app.route('/')
def index():
return '你好'
if __name__ == '__main__':
app.run()
pass最簡單的flask頁面
from flask import Flask,render_template app = Flask(__name__) @app.route('/') def hello_world(): return 'Hello World!' #開啟debug模式 app.config['DEBUG']=True @app.route('/test/') def testd(): # 跳轉頁面-HTML需要建在templates資料夾下 return render_template('test.html') if __name__ == '__main__': app.run()
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Title</title> #新增css樣式檔案 建在static資料夾下css下 <link rel="stylesheet" href="{{ url_for('static',filename='css/style.css',_external=True )}}"> </head> <body> 測試 </body> </html>
from flask import Response
@app.route('/setcookie/')
def setcookie():
#獲取響應物件
response=Response('cookie設定成功')
#設定cookie
response.set_cookie('cooktest','123',max_age=7200)
return response設定cookie
#設定session import os from flask import session app.secret_key=os.urandom(24) #session設定成功 @app.route('/setsession/') def setsession(): session['test']='123' return 'session設定成功' #獲取session @app.route('/getsession/') def getsession(): return session['test']
登入驗證回顯
html='''
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<body>
<form action="/denglu2/" method="POST">
<input type="text" name='zhanghao' value={0}>
<input type="password" name='mima'>
<button type="submit">登入</button>
</form>
</body>
</html>
'''
from flask import request
@app.route('/denglu/',)
def denglu():
return html
@app.route('/denglu2/',methods=['GET','POST'])
def denglu2():
if request.method=='POST':
zhanghao = request.values.get('zhanghao')
mima = request.values.get('mima')
if zhanghao=='admin' and mima=='123':
print('驗證成功')
return html.format(zhanghao)
else:
return html
else:
return html
上傳圖片檔案
import uuid
@app.route('/shangchuan/',methods=['GET','POST'])
def shangchuan():
if request.method=='POST':
#提取檔名
filed=request.files['wenjian']
named=filed.filename
typed=named.split('.')[-1]
print(filed.filename)
#驗證檔案型別
alltype=['jpg','png','bmp','gif']
if typed in alltype:
print(typed)
uploadpath=os.getcwd()+os.sep+'static/file'
#建立資料夾
if not os.path.exists(uploadpath):
os.mkdir(uploadpath)
#uuid命名不重複姓名
named=str(uuid.uuid1())+'.'+typed
filed.save(uploadpath+os.sep+named)
return html.format('上傳成功')
else:
return html.format('')
else:
return html.format('')
<form action="/shangchuan/" method="post" enctype="multipart/form-data">
<input type="file" name="wenjian">
<button type="submit">上傳</button>
</form>
紅框內必須新增