flask实现用户登录和上传文件 

import os
from flask import Flask
from flask import render_template, request
from flask import render_template
from flask import redirect
from flask import session
app = Flask(__name__)
app.secret_key = "@#$$%%%%%%%%%%###"
app.debug = True
@app.route("/login", methods=["GET","POST"])
def login():
    print(request.method)
    if request.method == "GET":
        print(request.url)
        print(request.values)
        print(request.url_charset)
        print(request.url_root)
        print(request.url_rule)
        print(request.args.to_dict())
        return render_template("login1.html")
    if request.method == "POST":
        print(request.files.get("my_file"))
        my_file = request.files.get("my_file")
        new_file = os.path.join("xht", my_file.filename)
        my_file.save(new_file)
        print(request.form.get("username"))
        print(request.form.to_dict())
        if request.form.get("username") == "123":
            session["user"] = request.form.get("username")
            return redirect("/")
        # return "200 OK"
@app.route("/")
def index():
    print(session.get("user"))
    return render_template("index.html")
if __name__ == '__main__':
    app.run("0.0.0.0", 9527)
用到的login.html
<!DOCTYPE html>
<html lang="zh-CN">
<head>
    <title>Bootstrap 101 Template</title>
</head>
<body>
<h1>用户登录</h1>
<form action="" method="post" enctype="multipart/form-data">
    <p>username: <input type="text" name="username"></p>
    <p><input type="file" name="my_file"></p>
    <input type="submit" value="登录">
</form>
</body>
</html>
返回到的主页.html
<!DOCTYPE html>
<html lang="zh-CN">
<head>
  <title>Bootstrap 101 Template</title>
</head>
<body>
<h1>你好，世界！</h1>
</body>
</html>
posted @ 2020-06-20 23:21  干it的小张  阅读(340)  评论(0)    收藏  举报