Question

我有以下代码

from flask import Flask, render_template, request
app = Flask(__name__)
import logging
@app.route("/")
def hello():
    return "Hello csdfwe!"

@app.route('/test/')
def check():
    return render_template('template.html')

@app.route('/result/', methods = ['GET', 'POST'])
def result():
    print "*****", request.form, "******"
    return render_template('template1.html')

@app.route('/result1/', methods = ['GET', 'POST'])
def result1():
    return "Pressed OK"

if __name__ == "__main__":
    app.run()

template1.html是

<html>
   <body>
      <form action = "{{ url_for('result') }}" method = "POST">
         <p>Value1 <input type = "text" name = "Value1"  /></p>            
         <p>Value2<input type ="text" name = "Value2" /></p>
         <p>Charging Duration <input type ="text" name = "Charging_Duration" /></p>
         <p><input type = "submit" value = "submit" name = "submit" /></p>
      </form> 
   </body>
</html>

查询：在html文件中，正如您所看到的，我为Value1和Value2提供了不同的文本框。我想打印文本框后面已经存在的value1的现有值。这意味着模板将显示已存在的值，用户可以设置任何新值。我不知道如何从html函数中获取值。

请指导

Answer 1

render_template获取模板中可用的上下文变量。您可以将任意数量的变量传递给模板。

所以，尝试这样的事情：

在你的路线代码中：

@app.route('/result/', methods = ['GET', 'POST'])
def result():
    value1 = request.form.get('Value1')
    return render_template('template1.html', value1=value1)

template1.html：

<html>
   <body>
      Value1 is {{value1 or 'not set'}}
      <form action = "{{ url_for('result') }}" method = "POST">
         <p>Value1 <input type = "text" name = "Value1" /></p>
         <p>Value2<input type ="text" name = "Value2" /></p>
         <p>Charging Duration <input type ="text" name = "Charging_Duration" /></p>
         <p><input type = "submit" value = "submit" name = "submit" /></p>
      </form>
   </body>
</html>

从flask html中的函数打印文本框旁边的值

1 个答案: