烧瓶没有激活功能

时间:2015-07-16 13:18:57

标签: python html testing flask webpage

我一直在使用python flask和html,为了创建一个小网站,(就像我离开学校一样的业余爱好),我用html创建了一个表单并保存了它在项目的templates文件夹中。然后我还在python脚本中添加了一个函数,所以当单击一个按钮时,它会将用户重定向回主页(index.html),但是当我测试了网页并点击了该按钮时网页(烧瓶服务器运行)" 400错误请求"页面显示

Python代码:

#Python code behind the website
import datetime
from flask import Flask, session, redirect, url_for, escape, request,    render_template
print ("started")
def Log(prefix, LogMessage):
    timeOfLog = datetime.datetime.now().strftime("%d-%m-%Y %H:%M:%S" + " : ")
    logFile = open("Log.log", 'a')
    logFile.write("[" + timeOfLog + "][" + prefix + "][" + LogMessage + "] \n")
    logFile.close()

app = Flask(__name__)

@app.route('/')
def my_form():
    print ("Acessed index")
    return render_template("index.html")

@app.route('/', methods=['POST'])
def my_form_post():
    text = request.form['text']#requests text from the text form
    processed_text = text #does nothing 
    user = "" #use poss in future to determin user
    logFile = open("MessageLog.msglog", 'a')#opens the message log file in append mode
    logFile.write(text + "\n")#stores the inputted message in the message log file
    logFile.close()
    #print (text)
    Log("User Message", (user + text))#uses the main log file to store messages aswell as errors
    print ("Accessing index")
    return render_template("test.html")

@app.route('/test', methods=['POST'])
def test():
    #text = request.form['text']
    print ("Test page function")
    #return "hello"
    return render_template("index.html") 

if __name__ == '__main__':
    app.debug = True
    app.run(host='0.0.0.0') 

HTML代码:                         - >     

<body>
<h1>Test Page</h1>
<form method="POST">
    <input type="submit" name="my-form" value="Send">
</form>

</body>

Stack Track: stack trace

1 个答案:

答案 0 :(得分:1)

您需要将表单发布到正确的网址:

<body>
<h1>Test Page</h1>
<form method="POST" action='/test'>
    <input type="submit" name="my-form" value="Send">
</form>
</body>

默认情况下,如果您没有向HTML表单添加action属性,则只会将其定义为您当前所在网址的定义方法。您可以添加action属性来更改该行为。

您也可以使用url_for()功能执行此操作。这有点安全,因为URL往往比您的查看方法名称更频繁地更改:

<body>
<h1>Test Page</h1>
<form method="POST" action="{{ url_for('test') }}">
    <input type="submit" name="my-form" value="Send">
</form>
</body>

将视图方法的名称(不是它的URL)作为字符串传递给函数。小心使用正确的引号。

请注意,同一网址有2个视图会让人感到有些困惑。通常这样的事情虽然是YMMV,但是考虑到你的应用:

@app.route('/someurl')
def some_view():
    if request.method == "POST":
        # handle POST
    else:
        # handle GET