首页 > 解决方案 > 如何修复路由 GET POST 的“Flask 404”

问题描述

我从 Flask 开始。我有以下view.py

我的问题是关于路线@app.route('/uploaded'...

from flask import render_template, jsonify, Flask, redirect, url_for, request
from app import app
import random
import os
from keras.applications.resnet50 import ResNet50
from keras.preprocessing import image
from keras.applications.resnet50 import preprocess_input, decode_predictions
import numpy as np


@app.route('/')



@app.route('/upload')
def upload_file2():
   return render_template('index.html')

@app.route('/uploaded', methods = ['GET', 'POST'])
def upload_file():
   if request.method == 'POST':
      f = request.files['file']
      path = os.path.join(app.config['UPLOAD_FOLDER'], f.filename)
      model= ResNet50(weights='imagenet')
      img = image.load_img(path, target_size=(224,224))
      x = image.img_to_array(img)
      x = np.expand_dims(x, axis=0)
      x = preprocess_input(x)
      preds = model.predict(x)
      preds_decoded = decode_predictions(preds, top=3)[0] 
      print(decode_predictions(preds, top=3)[0])
      f.save(path)
      return render_template('uploaded.html', title='Success', predictions=preds_decoded, user_image=f.filename)


@app.route('/index')
def index():
    return render_template('index.html', title='Home')

@app.route('/map')
def map():
    return render_template('map.html', title='Map')


@app.route('/map/refresh', methods=['POST'])
def map_refresh():
    points = [(random.uniform(48.8434100, 48.8634100),
               random.uniform(2.3388000, 2.3588000))
              for _ in range(random.randint(2, 9))]
    return jsonify({'points': points})


@app.route('/contact')
def contact():
    return render_template('contact.html', title='Contact')

在 .html 文件中,经过一些验证步骤后,我要求 End Under 上传一个文件(一张图片)。

然后在我下面的代码中,输入是图像,我希望输出结果,必须显示在 上传的文件中。

但是,当我访问localhost:5000时,我无法访问upload.html

URL 是否卡在我的 PHP 请求中(用于在我的home.html中上传文件的请求)

对于类似的问题,我从该站点阅读了许多不同的答案,但没有一个能解决我的问题。

提前致谢

索引.html:

{% extends "layout.html" %}

{% block head %}
    {{ super() }}
{% endblock %}

{% block content %}
<h1 class= "ui header" >{{ title }} </h1>
{% if current_user.is_authenticated %}


<!DOCTYPE html>
<html>
<body>

<form action="upload.php" method="post" enctype="multipart/form-data">
    Select image to upload:
    <input type="file" name="fileToUpload" id="fileToUpload">
    <input type="submit" value="Upload Image" name="submit">
</form>

</body>
</html>

<h2 class= "ui header" > Hi {{ title }} </h2>


    {% endif %}

{% endblock %}

日志:

 * Debugger is active!  * Debugger PIN: 127-013-588
127.0.0.1 - - [25/Sep/2019 22:12:18] "GET / HTTP/1.1" 200 -
127.0.0.1 - - [25/Sep/2019 22:12:18] "GET /_debug_toolbar/static/css/toolbar.css?0.2942939835023174 HTTP/1.1" 200 -
127.0.0.1 - - [25/Sep/2019 22:12:26] "POST /upload.php HTTP/1.1" 404 -

标签: pythonhtmlpostflaskget

解决方案


在您的view.py中,在索引级别,试试这个:

@app.route('/index')
@app.route('/')
def index():
    return render_template('index.html', title='Home')

您可以通过键入localhost:5000localhost:5000/index来访问该站点

@app.route('/')如@frankie567 所指出的,删除顶部()的路线。


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