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>