通过Flask发送POST数据

本文介绍了通过Flask发送POST数据的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！问题描述 29岁程序员，3月因学历无情被辞！我试图让一些JavaScript运行一个函数来更新一个合理的大型json字典的表单输入的值，然后我想在我的瓶子后端得到它的持有。所以我有下面的HTML和JavaScript： < head> < script> 函数AddPostData（）{ var data = editor.getValue（）; //这个editor.getValue（）获取json字符串，它正在工作 //通过提示信息验证 var formInfo = document.forms ['json_form' ]。 formInfo.elements [json_data]。value = data; alert（data）} < / script> < / head> < body> <！ - 我在这里有json编辑GUI - > < form id =json_formmethod =POSTaction =/ test> < input type =hiddenname =json_datavalue =/> < input type =submitvalue =Submitonclick =AddPostData（）;> < / form> 然后这里是我用于Flask的Python。 @ app.route（'/ test'，methods = ['GET'，'POST']） def test（）：如果request.method =='POST'： print（request.data） the_json = request.data ＃这个模板简单地打印出来，所有我得到的是b return render_template（'testing.html'，the_json = the_json）？当我将一个字符串硬编码到数据变量中时，我仍然没有在request.data字段中得到任何东西，那么确切的说，我得到ab后面跟着一个引号：b 我想这是错误的，因为它实际上并没有将json放入输入的值字段中。解决方案 the_json = request.form.get（'json_data'，None）而不是 the_json = requ est.data 将在硬编码部分工作（当然，但我不太确定如果你的Java脚本工作/不是我的专业领域，但它看起来没问题。）。I am trying to have some javascript that runs a function to update the value of a form input with a reasonably large json dictionary and then I want to get a hold of it on my flask backend. So I have the follow HTML and javascript:<head><script> function AddPostData() { var data = editor.getValue(); //this editor.getValue() gets the json string and it is working //as validated by an alert message var formInfo = document.forms['json_form']; formInfo.elements["json_data"].value = data; alert(data) } </script> </head> <body>  <form id="json_form" method="POST" action="/test"> <input type="hidden" name="json_data" value="" /> <input type="submit" value="Submit" onclick="AddPostData();"> </form>And then here is the python that I have for [email protected]('/test', methods=['GET', 'POST'])def test(): if request.method == 'POST': print (request.data) the_json=request.data #this template simply prints it out and all that I get is b" return render_template('testing.html', the_json=the_json)Any ideas what is going wrong? When I hardcode a string into the data variable I still don't get anything in the request.data field. Well to be exact I get a b followed by one quotation: b"I suppose it is something wrong in that it isn't actually putting the json into the value field of the input. 解决方案 the_json = request.form.get('json_data', None)instead of the_json=request.datawill work in the hard coded section (for sure, but I'm not too sure if your java script works/not my area of expertise but it looks ok.). 这篇关于通过Flask发送POST数据的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！上岸，阿里云！