[译]Flask教程--将表单数据发送到模板

之前我们已经看到在Flask中我们可以给URL规则指定http方法, 对应的函数可以按字典形式接收表单数据, 然后将这些数据输送到模板中并最终渲染为网页.

在下面的例子中, URL '/' 渲染一个含有表单的网页(student.html). 填入到表单的数据被post到URL '/result' 然后触发了result()函数.

request()函数将表单数据组装起来, 放入request.form字典对象中, 然后发送到模板中渲染result.html. 这个模板将表单数据动态的渲染为一个表格.

下面是这个应用的Python代码:

from flask import Flask, render_template, request
app = Flask(__name__)

@app.route('/')
def student():
   return render_template('student.html')

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

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

下面是student.html的代码:

<html>
   <body>
   
      <form action = "http://localhost:5000/result" method = "POST">
         <p>Name <input type = "text" name = "Name" /></p>
         <p>Physics <input type = "text" name = "Physics" /></p>
         <p>Chemistry <input type = "text" name = "chemistry" /></p>
         <p>Maths <input type ="text" name = "Mathematics" /></p>
         <p><input type = "submit" value = "submit" /></p>
      </form>
      
   </body>
</html>

下面是模板result.html的代码:

<!doctype html>
<html>
   <body>
   
      <table border = 1>
         {% for key, value in result.iteritems() %}
         
            <tr>
               <th> {{ key }} </th>
               <td> {{ value }} </td>
            </tr>
            
         {% endfor %}
      </table>
      
   </body>
</html>

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