版本:python3.7
功能,開發一個用戶訪問的頁面,支持圖片上傳,並將其保存在服務器。
項目結構:
app.py文件內容如下:
from flask import Flask, Response, request, render_template
from werkzeug.utils import secure_filename
import os
app = Flask(__name__)
# 設置圖片保存文件夾
UPLOAD_FOLDER = 'photo'
app.config['UPLOAD_FOLDER'] = UPLOAD_FOLDER
# 設置允許上傳的文件格式
ALLOW_EXTENSIONS = ['png', 'jpg', 'jpeg']
# 判斷文件後綴是否在列表中
def allowed_file(filename):
return '.' in filename and filename.rsplit('.', 1)[-1] in ALLOW_EXTENSIONS
# 上傳圖片
@app.route("/photo/upload", methods=['POST', "GET"])
def uploads():
if request.method == 'POST':
# 獲取post過來的文件名稱,從name=file參數中獲取
file = request.files['file']
if file and allowed_file(file.filename):
print(file.filename)
# secure_filename方法會去掉文件名中的中文
file_name = secure_filename(file.filename)
# 保存圖片
file.save(os.path.join(app.config['UPLOAD_FOLDER'], file_name))
return "success"
else:
return "格式錯誤,請上傳jpg格式文件"
return render_template('index.html')
# 查看圖片
@app.route("/photo/<imageId>.jpg")
def get_frame(imageId):
# 圖片上傳保存的路徑
with open(r'C:/Users/Administration/Desktop/photo_ceshi/photo/{}.jpg'.format(imageId), 'rb') as f:
image = f.read()
resp = Response(image, mimetype="image/jpg")
return resp
if __name__ == "__main__":
app.run(host='0.0.0.0', port=5000, debug=True)
index.html內容如下:
<!DOCTYPE html>
<html lang="zh-cmn-Hans">
<head>
<meta charset="UTF-8">
<title>Upload</title>
</head>
<h1>請上傳圖片文件</h1>
<form action="" method=post enctype=multipart/form-data>
<p><input type=file name=file>
<input type=submit value=Upload>
</form>
啓動app.py文件後,我們先訪問 http://127.0.0.1:8002/photo/upload
1、頁面如下:
2、我們先上傳一張 1001.jpg,提交後界面如下:
3、然後我們嘗試通過圖片url來訪問這張圖片:
搞定收工!