getJSON results in XML parse error?

问题

New to javascript and thought I would try retrieve some information from a database (and eventually graph it I hope!).

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
  <html>
   <head>
      <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
      <title>Flot Examples</title>
      <link href="layout.css" rel="stylesheet" type="text/css">
      <!--[if lte IE 8]><script language="javascript" type="text/javascript" src="../excanvas.min.js"></script><![endif]-->
      <script language="javascript" type="text/javascript" src="../jquery.js"></script>
      <script language="javascript" type="text/javascript" src="../jquery.flot.js"></script>
   </head>
      <body>
      <h1>Test Javascript:</h1>


  <script type="text/javascript">
  $(function () {
      $.get("http://localhost:8000/activity?starttime=13129788041&endtime=0&hostid=1", function(data) {
          $.each(data, function(i,item){
              document.write(i);
          });
      });
  });
  </script>

   </body>
  </html>

The line "http://localhost:8000/activity?starttime=13129788041&endtime=0&hostid=1" returns what I'm looking for if I type it in a browser window:

{"1.313496422E9":[0.21000000000003638,448,12754,1.868579977195076]}

But doesn't work in the javascript.

If I look with httpfox there is an error

application/xml (NS_ERROR_DOM_BAD_URI)

But if I view the "contents" tab in httpfox I can actually see the data under I require but there is an XML parse error.

<?xml-stylesheet
  href="chrome://global/locale/intl.css" type="text/css"
  ?>
  <parsererror>
  XML Parsing Error: not well-formed Location: chrome://browser/content/browser.xul Line Number 1, Column 1:
  <sourcetext>
  {"1.313496422E9":[0.21000000000003638,448,12754,1.868579977195076]} ^
  </sourcetext>
  </parsererror>

The NS_ERROR_DOM_BAD_URI seems to be about cross domain issues but I'm working locally on the actual server so should I be able to access the data? Also why is there an XML parse error when I can see the exact data I want in httpfox's "Content" tab?

I'm probably doing something horrendously amateur but any help/thoughts/abuse would be welcome!

Cheers,

Rob.

回答1:

Either your json is malformed coming from the server or....you aren't actually using the jQuery.getJSON function. If you want to use jQuery.get, you need to specify the json data type as the last parameter.

http://api.jquery.com/jQuery.getJSON/

$.get("http://localhost:8000/activity?starttime=13129788041&endtime=0&hostid=1", function(data) {
          $.each(data, function(i,item){
              document.write(i);
          });
      }, 'json');

来源：https://stackoverflow.com/questions/7097559/getjson-results-in-xml-parse-error

标签

jquery

getjson