【发布时间】:2014-08-13 04:24:56
【问题描述】:
我试图在按下提交时从文本字段中获取表单数据,以便我可以将其转换为 json 格式并将 json 数据作为另一个页面访问,即localhost:5000/info。每次我尝试使用request.form.get('<id>') 访问数据时,它只返回一个空字典。我阅读了有关 stackoverflow 的其他帖子,试图找出问题,但似乎没有一个解决方案有效。如果可能的话,我想避免使用烧瓶以外的模板或模块。
这是我的python代码
from flask import Flask, request, jsonify, redirect
app = Flask(__name__)
numCarsEast = None
numCarsWest = None
numCarsSouth = None
numCarsNorth = None
@app.route('/info.json', methods=['GET', 'POST'])
def getInfo():
if request.method == 'GET':
lightEast = {}
lightWest = {}
lightNorth = {}
lightSouth = {}
intersection1 = {}
lightEast['cars'] = numCarsEast
lightWest['cars'] = numCarsWest
lightNorth['cars'] = numCarsNorth
lightSouth['cars'] = numCarsSouth
intersection1['eastLight'] = lightEast
intersection1['westLight'] = lightWest
intersection1['northLight'] = lightNorth
intersection1['southLight'] = lightSouth
return jsonify(intersection=intersection1)
@app.route('/cars', methods=['GET', 'POST'])
def cars():
if request.method == 'POST':
numCarsEast = request.form.get('eastLightInt1', None)
numCarsWest = request.form.get('westLightInt1', None)
numCarsNorth = request.form.get('northLightInt1', None)
numCarsSouth = request.form.get('southLightInt1', None)
print(str(numCarsEast) + ' east')
print(str(numCarsWest) + ' west')
print(str(numCarsNorth) + ' north')
print(str(numCarsSouth) + ' south')
return 'done'
return open('./carForm.html').read()
if __name__ == '__main__':
app.debug = True
app.run()
这是 HTML
<body>
<form method='POST'>
<H2>
Intersection 1
</h2>
<label>
East Light
</label>
<input type=text id='eastLightInt1' name='eastLightInt1' />
<label>
West Light
</label>
<input type=text id='westLightInt1' name='westLightInt1' />
<br />
<label>
North Light
</label>
<input type=text id='northLightInt1' name='northLightInt1' />
<label>
South Light
</label>
<input type=text id='southLightInt1' name='southLightInt1' />
<br />
<input type=submit value=Submit>
</form>
</body>
【问题讨论】:
-
删掉大约 90% 的代码,我们不需要它
-
@PatrickCollins 我厌倦了使用联系信息页面制作一个简化版本,该页面只包含姓名和电子邮件,并且有一个路由处理程序,但由于某种原因该页面按预期工作。这就是我发布所有内容的原因。我想我可能只是遗漏了一些小东西,但是当我查看代码时,我无法弄清楚问题是什么。谢谢。
标签: python html forms http flask