android post json，应用引擎给出 404

Question

我想同时学习更多关于 webbbservices 和 python 的知识。因此，如果您有想法或解决方案，请像我 5 一样向我解释。:)

所以我想向服务器发送一个字符串并将其存储在数据库（留言簿）中。我已经设法用网页做到这一点，但现在我想通过 phone 访问和存储一个字符串，这是 python 代码：

import os
import urllib
import json

from google.appengine.ext import ndb

import jinja2
import webapp2


JINJA_ENVIRONMENT = jinja2.Environment(
    loader=jinja2.FileSystemLoader(os.path.dirname(__file__)),
    extensions=['jinja2.ext.autoescape'],
    autoescape=True)

DEFAULT_GUESTBOOK_NAME = 'default_guestbook'
GUESTBOOKS_NAME = 'guestbook'

def guestbook_key(guestbook_name=DEFAULT_GUESTBOOK_NAME):
    return ndb.Key('Guestbook', guestbook_name)


class Guestbook(ndb.Model):
    identity = ndb.StringProperty(indexed=True


class Chat(webapp2.RequestHandler):
    def get(self):

        guestbook = Guestbook(parent=guestbook_key(GUESTBOOKS_NAME))
        guestbook.identity=self.request.get("content") 
        guestbook.put()
        self.response.headers['Content-Type'] = "text/plain"
        self.response.out.write("ok")

application = webapp2.WSGIApplication([
    (r'/chat', Chat),
], debug=True)

这是 android 代码：

private void sendData(){

        try {
            JSONObject jsonobj = new JSONObject();
            jsonobj.put("content", "asdf1234");

            DefaultHttpClient httpclient = new DefaultHttpClient();
            HttpPost httppostreq = new HttpPost("http://<myappid>.appspot.com/chat/");

            StringEntity se = new StringEntity(jsonobj.toString());

            se.setContentType("application/json;charset=UTF-8");
            se.setContentEncoding(new BasicHeader(HTTP.CONTENT_TYPE,"application/json;charset=UTF-8"));

            httppostreq.setEntity(se);

            HttpResponse httpresponse = httpclient.execute(httppostreq);

            Log.d("Debug", "Response: " + EntityUtils.toString(httpresponse.getEntity()));

        } catch (JSONException e) {
            e.printStackTrace();
        } catch (UnsupportedEncodingException e) {
            e.printStackTrace();
        } catch (ClientProtocolException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        } catch (Exception e){
            Log.d("Debug", "Exception: " + e.getMessage());
        }


    }

Answer 1

在您的路由 table 中：(r'/chat/(\d+)', Chat), 此行将 url 映射到处理程序。

通过在处理程序的 get 函数中将 (\d+) 映射到 product_id 来处理。

有效 urls

/chat/1
/chat/302490205

无效 urls

/聊天
/chat/jedi

编辑

因为您 post 需要在处理程序中使用 post 方法

def post(self):
    #do stuff

android post json，应用引擎给出 404

android post json, app engine gives 404

python

android

json

http-status-code-404