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文件上传实例

 郭祺迦 2018-09-13
html文件


<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<body>
<form action="" method="post" enctype="multipart/form-data">
<p>
<input type="file" name="file">
<input type =submit value="upload">
</p>
</form>
</body>
</html>

views处理函数视图文件:
from flask import Flask, request,make_response,render_template, redirect, url_for
from werkzeug.utils import secure_filename # 使用这个是为了确保filename是安全的
from os import path
from flask import Blueprint, render_template
blue = Blueprint("blue", __name__)
@blue.route("/upload/",methods=['GET','POST'])
def upload():
if request.method=='POST':
#通过request.files
f = request.files["file"]
#<FileStorage: '4.jpg' ('image/jpeg')>
print(f)
#获取你的应用的路径
base_path = path.abspath(path.dirname(__file__))
# /home/guojie/wenjian/myapp
print(base_path)
#拼接你上传的图片路径
upload_path = path.join(base_path,'static/uploads/')
#/home/guojie/wenjian/myapp/static/uploads/
print(upload_path)
#secure_filename() 对上传的文件名进行安检
file_name = upload_path + secure_filename(f.filename)
print(file_name)
#进行保存
f.save(file_name)
print(3)
return redirect(url_for('blue.upload'))
return render_template('upload.html')

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