Question

我是Flask的新人。我尝试从main传递参数，但它不起作用。希望有人可以帮助我。这是我的代码

from flask import Flask, render_template, request
import controllFlask
import pickle

app = Flask(__name__) # creates a flask object
import subprocess 


@app.route('/', methods=['GET', 'POST'])
def ner():
    '''controlls input of Webapp and calls proccessing methods'''
    knownEntities = pickle.load( open( "entityDictThis.p", "rb" ))
    print("loades")
    content = ""
    if request.method == 'POST':
        testText = (request.form['input'])
        app.ma = controllFlask.controll(testText, knownEntities)
        subprocess.call("controllFlask.py", shell=True)
        with open("test.txt", "r") as f:
            content = f.read()    
    return render_template("ner.jinja2", content=content)

def flaskApp():
    app.debug = True
    app.run()

我想在flaskApp中打开entityDictThis并将其发送给ner-function。因为我希望通过这种方式只加载一次。目前，每次重新加载页面时都会加载它，并且需要很长时间。有一个简单的方法吗？

Answer 1

这似乎只是一个范围问题，只是将加载pickle文件的行放在上面的范围内，它应该解决问题。

from flask import Flask, render_template, request
import controllFlask
import pickle

app = Flask(__name__) # creates a flask object
import subprocess 

knownEntities = pickle.load( open( "entityDictThis.p", "rb" ))

@app.route('/', methods=['GET', 'POST'])
def ner():
    '''controlls input of Webapp and calls proccessing methods'''
    print("loades")
    content = ""
    if request.method == 'POST':
        testText = (request.form['input'])
        app.ma = controllFlask.controll(testText, knownEntities)
        subprocess.call("controllFlask.py", shell=True)
        with open("test.txt", "r") as f:
            content = f.read()    
    return render_template("ner.jinja2", content=content)

def flaskApp():
    app.debug = True
    app.run()

我还建议，正如@bouteillebleu所提到的，使用with关键字来关闭加载的文件，这会为您自动执行此操作。

with open( "entityDictThis.p", "rb" ) as f:
    knownEntities = pickle.load(f)

从Flask main

1 个答案: