The form file upload flask

In the form upload file must be added enctype = "multipart / form-data" attribute

Why join this property it:

enctype is encodetype is the type of encoding means.

multipart / form-data refers to form a plurality of data parts, meaning both text data, binary data files there.

Note that: By default, the value of enctype is application / x-www-form-urlencoded, can not be used for file uploads, only use the multipart / form-data, in order to complete the transfer file data.

application / x-www-form-urlencoded can only upload files in text format, and multipart / form-data is about to upload files in binary form, you can achieve multiple file upload

Usually the uploaded data may be acquired request.form [], [] attribute name fill

Acquired form to upload a file in the view function can be used request.file.get () method, get to fill in the name attribute

And upload files to a specified folder, there are several ways

I was using it: File .save (file path)

Database table and view function model as follows:

class Users(db.Model):
    __tablename__ = 'users'
    id = db.Column(db.Integer, primary_key=True)
    name = db.Column(db.String(48), unique=True)
    sex = db.Column(db.String(12))
    pic = db.Column(db.String(48))

app.route @ ( '/ index /', Methods = [ 'the GET', 'the POST']) 
DEF index (): 
    IF request.method == 'the GET': 
        return the render_template ( 'index.html') 
    IF Request. == Method 'the POST': 
　　　　　# uploaded files and data acquired 
        iconsThe = request.files.get ( 'iconsThe') 
        name = Request.Form [ 'name'] 
        Sex = Request.Form [ 'Sex'] 
        # Upload specified path 
        = UPLOAD_DIC 'static / Upload' 
        # splice file full path 
        file_path = the os.path.join (UPLOAD_DIC, icons.filename) 
        # upload files to the specified path 
        icons.save (file_path) 
        User = the Users (name = name, Sex = Sex, file_path = PIC) 
        db.session.add (User) 
        db.session.the commit () 
        MSG = 'upload success'
        return render_template ( 'index.html', msg = msg, pic = file_path) 
Template follows:

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>上传图片</title>
</head>
<body>
<form action="" method="post" enctype="multipart/form-data" >
    {% if pic %}
        <div >
            <img style="width: 200px;height: 100px" src="/{{ pic }}/ " alt="">
        </div>
    {% endif %}
    <label for="name">姓名</label>
    <input type="text" id="name" name="name">
    <label for="sex"></label>
    <br>
    男<input type="radio" name="sex" id="sex" value="男">
    女<input type="radio" name="sex" id="sex" value="女">
    <br>
    <input type="file" name="icons">
    <br>
    <input type="submit" value="提交">
</form>
</body>
</html>

The form file upload flask

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