Jquery 一个简单的ajax请求post-empty

我有一个简单的ajax post请求。请求已发送。但为什么我在views.py中打印request.POST时，它会说：

request.POST:

这是我打印请求信息时的输出。输出如下所示

[Wed Nov 14 14:50:44 2012] [error] post request:  <WSGIRequest
[Wed Nov 14 14:50:44 2012] [error] path:/tryit/,
[Wed Nov 14 14:50:44 2012] [error] GET:<QueryDict: {}>,
[Wed Nov 14 14:50:44 2012] [error] POST:<QueryDict: {}>,
[Wed Nov 14 14:50:44 2012] [error] COOKIES:{'sessionid': 'f997a4c4ba0f576fe11141e0c0dcd38
 d'},
[Wed Nov 14 14:50:44 2012] [error] META:{'CONTENT_LENGTH': '128',
[Wed Nov 14 14:50:44 2012] [error]  'CONTENT_TYPE': 'application/x-www-form-urlencoded',
[Wed Nov 14 14:50:44 2012] [error]  'DOCUMENT_ROOT': '/var/www',
[Wed Nov 14 14:50:44 2012] [error]  'GATEWAY_INTERFACE': 'CGI/1.1',
[Wed Nov 14 14:50:44 2012] [error]  'HTTP_ACCEPT': '*/*',
[Wed Nov 14 14:50:44 2012] [error]  'HTTP_ACCEPT_ENCODING': 'gzip, deflate',
[Wed Nov 14 14:50:44 2012] [error]  'HTTP_ACCEPT_LANGUAGE': 'en-ca',
[Wed Nov 14 14:50:44 2012] [error]  'HTTP_CONNECTION': 'Keep-Alive',
[Wed Nov 14 14:50:44 2012] [error]  'HTTP_COOKIE': 'sessionid=f997a4c4ba0f576fe11141e0c0d
cd38d',
[Wed Nov 14 14:50:44 2012] [error]  'HTTP_PRAGMA': 'no-cache',

[Wed Nov 14 14:50:44 2012] [error]  'HTTP_USER_AGENT': 'Mozilla/5.0 (compatible; MSIE 9.0
; Windows NT 6.0; Trident/5.0)',
[Wed Nov 14 14:50:44 2012] [error]  'HTTP_X_REQUESTED_WITH': 'XMLHttpRequest',
[Wed Nov 14 14:50:44 2012] [error]  'PATH_INFO': u'/tryit/',
[Wed Nov 14 14:50:44 2012] [error]  'PATH_TRANSLATED': 'django.wsgi/tryit/',
[Wed Nov 14 14:50:44 2012] [error]  'QUERY_STRING': '',

[Wed Nov 14 14:50:44 2012] [error]  'REQUEST_METHOD': 'POST',
[Wed Nov 14 14:50:44 2012] [error]  'REQUEST_URI': '/tryit/',
[Wed Nov 14 14:50:44 2012] [error]  'SCRIPT_FILENAME': 'django.wsgi',
[Wed Nov 14 14:50:44 2012] [error]  'SCRIPT_NAME': u'',

[Wed Nov 14 14:50:44 2012] [error]  'SERVER_ADMIN': 'webmaster@localhost',

[Wed Nov 14 14:50:44 2012] [error]  'SERVER_PORT': '80',
[Wed Nov 14 14:50:44 2012] [error]  'SERVER_PROTOCOL': 'HTTP/1.1',
[Wed Nov 14 14:50:44 2012] [error]  'SERVER_SIGNATURE': '<address>Apache/2.2.22 (Ubuntu)
[Wed Nov 14 14:50:44 2012] [error]  'SERVER_SOFTWARE': 'Apache/2.2.22 (Ubuntu)',

[Wed Nov 14 14:50:44 2012] [error]  'mod_wsgi.callable_object': 'application',
[Wed Nov 14 14:50:44 2012] [error]  'mod_wsgi.enable_sendfile': '0',
[Wed Nov 14 14:50:44 2012] [error]  'mod_wsgi.handler_script': '',
[Wed Nov 14 14:50:44 2012] [error]  'mod_wsgi.input_chunked': '0',
[Wed Nov 14 14:50:44 2012] [error]  'mod_wsgi.listener_host': '',
[Wed Nov 14 14:50:44 2012] [error]  'mod_wsgi.listener_port': '80',
[Wed Nov 14 14:50:44 2012] [error]  'mod_wsgi.process_group': '',
[Wed Nov 14 14:50:44 2012] [error]  'mod_wsgi.queue_start': '1352926244930263',
[Wed Nov 14 14:50:44 2012] [error]  'mod_wsgi.request_handler': 'wsgi-script',
[Wed Nov 14 14:50:44 2012] [error]  'mod_wsgi.script_reloading': '1',
[Wed Nov 14 14:50:44 2012] [error]  'mod_wsgi.version': (3, 4),
[Wed Nov 14 14:50:44 2012] [error]  'wsgi.errors': <mod_wsgi.Log object at 0xa8224c78>,
[Wed Nov 14 14:50:44 2012] [error]  'wsgi.file_wrapper': <built-in method file_wrapper of
 mod_wsgi.Adapter object at 0xa8210218>,
[Wed Nov 14 14:50:44 2012] [error]  'wsgi.input': <mod_wsgi.Input object at 0xa8205ef8>,
[Wed Nov 14 14:50:44 2012] [error]  'wsgi.multiprocess': True,
[Wed Nov 14 14:50:44 2012] [error]  'wsgi.multithread': True,
[Wed Nov 14 14:50:44 2012] [error]  'wsgi.run_once': False,
[Wed Nov 14 14:50:44 2012] [error]  'wsgi.url_scheme': 'http',
[Wed Nov 14 14:50:44 2012] [error]  'wsgi.version': (1, 0)}>


But when I use fiddler, I can see the query parameter string. I am stuck here for a day. Please help. Thanks.

---

[Wed Nov 14:50:44 2012][error]post请求：您需要使用控制台并检查ajax调用的内容和标题

您可以在firebug中执行此操作（我希望您的firefox中安装了firebug），
或在Chrome中单击鼠标右键并检查元素

在打开的窗口中应该有网络面板（firebug），
或网络在铬

在这里，您将看到对服务器的每个调用的详细信息及其响应。
数据应为dict。您的js应如下所示：

if (start <= end) {
   // fire a request to /tryit
   var args = {
      ... 
      data: {"mydata" : mydata },
      ...
} 

if（start在firebug中调试javascript时，我得到错误“x1未定义”

你想让x1和y1成为字符串吗？如果是的话，试试这个

data: {'x':'x1', 'y': 'y1'},

希望这有帮助

Andrew
您是否尝试在Firebug或类似软件中查看此内容，以查看实际发布的内容？您确定
mydata
中确实包含数据吗？在chrome developer tools中，转到控制台选项卡并触发您尝试测试的事件。是否显示任何错误？如果是，请发布错误。您的代码太不完整，我们无法生成一个像样的suggestion。给我们测试所需的所有代码，我们可以给你更好的建议。嗯..说，传输的数据被转换成字符串，所以它应该是JSON对象。将
mydata
更改为
{x'：x1，'y'：y1，'z'：z1}
。应该可以。如何检查ajax调用的内容和标题？它是一个字符串变量。
if (start <= end) {
   // fire a request to /tryit
   var args = {
      ... 
      data: {"mydata" : mydata },
      ...
} 

data: {'x':'x1', 'y': 'y1'},