Flask Upload Image 仅在 Localhost 上工作

Question

大家好。我在使用烧瓶上传图像时遇到了一个小问题。我可以在localhost中的flask上上传图像（Web应用程序托管在我的桌面上）。但是当我在Online Server上加载烧瓶应用程序时，我总是遇到“FileNotFoundError”。我还将权限更改为777，但仍然无法正常工作。这是 html 上传代码。<form name="edit_vehicle_info" action="/vehicle_info_form/" method="POST" enctype="multipart/form-data" class="formfield">    <div class="form-group">    <label for="changeVehicleImg">Vehicle Image</label>    <input type="file" id="changeVehicleImg" name="changeVehicleImg" accept="image/*"></div>这是python上传代码。#[e-mail]('/vehicle_info_form/', methods=['GET', 'POST'])def vehicle_info_form():    try:        if request.method == "GET":            return render_template(                'vehicleInfo.html'            )        elif request.method == "POST":            inputVehicleImg = request.files['changeVehicleImg']            if inputVehicleImg.filename == "":                inputVehicleImg_filename = ""            else:                print(inputVehicleImg.filename)                print(app.config['UPLOAD_FOLDER_IMG_VEHICLE'])                inputVehicleImg_filename = secure_filename(inputVehicleImg.filename)                inputVehicleImg.save(os.path.join(app.config['UPLOAD_FOLDER_IMG_VEHICLE'], inputVehicleImg_filename))            print ('success')    except Exception as e:        print(e)        return redirect(url_for('vehicle_info_form'))python上传代码可以打印，然后之后，发生错误。inputVehicleImg.filenameapp.config['UPLOAD_FOLDER_IMG_VEHICLE']

Answer 1

我通过更新.我用于获取完整的当前路径并添加应保存图像的路径。app.config['UPLOAD_FOLDER_IMG_VEHICLE']os.getcwd()

首先，我通过添加和来检查错误的根源是什么。tryexcept FileNotFoundError:

#vehicle_info_form

@app.route('/vehicle_info_form/', methods=['GET', 'POST'])

def vehicle_info_form():

    try:

        if request.method == "GET":

            return render_template(

                'vehicleInfo.html'

            )

        elif request.method == "POST":

            inputVehicleImg = request.files['changeVehicleImg']

            if inputVehicleImg.filename == "":

                inputVehicleImg_filename = ""

            else:

                print(inputVehicleImg.filename)

                print(app.config['UPLOAD_FOLDER_IMG_VEHICLE'])

                inputVehicleImg_filename = secure_filename(inputVehicleImg.filename)

                try:

                    inputVehicleImg.save(os.path.join(app.config['UPLOAD_FOLDER_IMG_VEHICLE'], inputVehicleImg_filename))

                except FileNotFoundError:

                    print("File does not exist")

            print ('success')

    except Exception as e:

        print(e)

        return redirect(url_for('vehicle_info_form'))

我尝试上传图像并在控制台中返回。File does not exist

然后，我检查图像应上传的路径。app.config['UPLOAD_FOLDER_IMG_VEHICLE']

print(app.config['UPLOAD_FOLDER_IMG_VEHICLE'])

在那里，我发现我的在线服务器中的路径不一样，所以我更新了它。

import os

path = os.getcwd()

print(path) 

UPLOAD_FOLDER_IMG_VEHICLE = path + "/apps/FMS/static/images/vehicleInfo"

app.config['UPLOAD_FOLDER_IMG_VEHICLE'] = UPLOAD_FOLDER_IMG_VEHICLE