JSON对象最大尺寸？

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问题描述

使用jQuery，我可以用ajax这样从客户端发送的JSON对象服务器：

  VAR strJSON ='{事件：[{
    日期：
        2009-10-14，2009-10-15]，
   团队：
        {ID：0，国：USA，状态：CA，名：加州州立理工大学，工作小组：}，
        {ID：1，国：USA，状态：CA，名：加州州立大学，贝克斯菲尔德，工作小组：}，
        {ID：2，国：USA，状态：CA，名：加州州立大学弗雷斯诺，工作小组：}，
        {ID：3，国：USA，状态：CA，名：加州州立大学富勒顿，工作小组：}]
}]}';

$阿贾克斯（{
    网址：../ajax/save_event，
    键入：POST，
    数据：{数据：strJSON}，
    数据类型：JSON，
    超时：8000，
    缓存：假的
}）;

它运作良好。但是，如果JSON字符串获得更大的（不知道确切的尺寸，但地方约5倍大），服务器接收到的$ _ POST数据是空的。有人知道为什么吗？

我使用的Apache / PHP / jQuery的。它发生的IE和Firefox浏览器。是否有一个配置设置的地方我需要调整？

下面是一个字符串失败，使其通过一个示例：

<$p$p><$c$c>{"events":[{"dates":["2009-10-10","2009-10-11","2009-10-12"],"divisions":[{"level":"Collegiate","name":"Varsity","subdivision":"Division我，发：[]，团队：[{ID：0，国：USA，状态：CA，名：加州州立理工大学工作小组：}，{ID：1，国：USA，状态：CA，名：加州州立大学，贝克斯菲尔德，工作小组： }，{ID：2，国：USA，状态：CA，名：加州州立大学弗雷斯诺，工作小组：}，{ ID：3，国：USA，状态：CA，名：加州州立大学富勒顿，工作小组：}，{ID： 4，国：USA，状态：CA，名：斯坦福大学，工作小组：}，{ID：5，国：美国，状态：CA，名：加州大学戴维斯分校，工作小组：}，{ID：6，国：USA，状态：CA，名：旧金山州立大学，工作小组：}，{ID：7，国：USA，状态：CA，名：拉森社区学院，工作小组：}，{ID：8，国：USA，状态：CA，名：门罗学院，工作小组：}，{ID：9，国：USA，状态：CA，名：弗雷斯诺太平洋University","subteam":""},{"id":"10","country":"USA","state":"CA","name":"Bakersfield","subteam":""},{"id":"11","country":"USA","state":"CA","name":"Buchanan","subteam":""},{"id":"12","country":"USA","state":"CA","name":"Campolindo-Moraga","subteam":""},{"id":"13","country":"USA","state":"CA","name":"Fremont-Sunnyvale","subteam":""},{"id":"14","country":"USA","state":"CA","name":"Ponderosa-Shingle泉城，工作小组：}，{ID：15，国：USA，状态：CA，名：西Covina","subteam":""},{"id":"16","country":"USA","state":"CA","name":"Gilroy","subteam":""},{"id":"17","country":"USA","state":"CA","name":"San圣何塞州立大学，工作小组：}，{ID：18，国：USA，状态：CA，名：加州大学洛杉矶分校工作小组：}，{ID：19，国：USA，状态：CA，名：塞拉利昂College","subteam":""},{"id":"20","country":"USA","state":"CA","name":"Selma","subteam":""},{"id":"21","country":"USA","state":"CA","name":"Liberty","subteam":""}],}]}]}

它使用json.org的字符串创建的：

  VAR strJSON = JSON.stringify（oEvent）;

编辑：进一步调查，我改变了数据类型设置为文本，并试图发送数字的长字符串。它的工作原理，直到〜3500字符，然后扼流圈（当我说呛我的意思是请求到达服务器与空$ _ POST）

我的PHP的post_max_size为64M，所以这不是它。使用Apache的LimitRequestBody这是不是在httpd.conf有人建议，所以我说LimitRequestBody 0，并重新启动Apache的。这并没有帮助的。

任何其他建议???

解决方案

这可能是由于您的服务器的配置。检查php.ini文件的设置 max_post_size ，并确保它足够大来发表您的数据。另外，请检查你的web服务器设置 - 阿帕奇有一个 LimitRequestBody 指令，它可能会造成您的问题。最后，检查你的web服务器和PHP错误日志，看大岗被触发任何错误。

Using jquery, I'm able to send json objects from client to server using ajax like this:

var strJSON = '{"event":[{
    "dates":[
        "2009-10-14","2009-10-15"],
   "teams":[
        {"id":"0","country":"USA","state":"CA","name":"California Polytechnic State University","subteam":""},
        {"id":"1","country":"USA","state":"CA","name":"California State University, Bakersfield","subteam":""},
        {"id":"2","country":"USA","state":"CA","name":"California State University, Fresno","subteam":""},
        {"id":"3","country":"USA","state":"CA","name":"California State University, Fullerton","subteam":""}]
}]}';

$.ajax({
    url: '../ajax/save_event',
    type: 'POST',
    data: { data : strJSON },
    dataType: 'json',
    timeout: 8000,
    cache: false
});

It works well. But if the JSON string gets much bigger (not sure the exact size, but somewhere around 5x bigger), the $_POST data received by the server is empty. Anybody know why?

I'm using Apache/PHP/jquery. It happens from both IE and Firefox. Is there a config setting somewhere I need to adjust?

Here's an example of a string that fails to make it through:

{"events":[{"dates":["2009-10-10","2009-10-11","2009-10-12"],"divisions":[{"level":"Collegiate","name":"Varsity","subdivision":"Division I","rounds":[],"teams":[{"id":"0","country":"USA","state":"CA","name":"California Polytechnic State University","subteam":""},{"id":"1","country":"USA","state":"CA","name":"California State University, Bakersfield","subteam":""},{"id":"2","country":"USA","state":"CA","name":"California State University, Fresno","subteam":""},{"id":"3","country":"USA","state":"CA","name":"California State University, Fullerton","subteam":""},{"id":"4","country":"USA","state":"CA","name":"Stanford University","subteam":""},{"id":"5","country":"USA","state":"CA","name":"University of California, Davis","subteam":""},{"id":"6","country":"USA","state":"CA","name":"San Francisco State University","subteam":""},{"id":"7","country":"USA","state":"CA","name":"Lassen Community College","subteam":""},{"id":"8","country":"USA","state":"CA","name":"Menlo College","subteam":""},{"id":"9","country":"USA","state":"CA","name":"Fresno Pacific University","subteam":""},{"id":"10","country":"USA","state":"CA","name":"Bakersfield","subteam":""},{"id":"11","country":"USA","state":"CA","name":"Buchanan","subteam":""},{"id":"12","country":"USA","state":"CA","name":"Campolindo-Moraga","subteam":""},{"id":"13","country":"USA","state":"CA","name":"Fremont-Sunnyvale","subteam":""},{"id":"14","country":"USA","state":"CA","name":"Ponderosa-Shingle Springs","subteam":""},{"id":"15","country":"USA","state":"CA","name":"West Covina","subteam":""},{"id":"16","country":"USA","state":"CA","name":"Gilroy","subteam":""},{"id":"17","country":"USA","state":"CA","name":"San José State University","subteam":""},{"id":"18","country":"USA","state":"CA","name":"University of California, Los Angeles","subteam":""},{"id":"19","country":"USA","state":"CA","name":"Sierra College","subteam":""},{"id":"20","country":"USA","state":"CA","name":"Selma","subteam":""},{"id":"21","country":"USA","state":"CA","name":"Liberty","subteam":""}],}]}]}

It's created using json.org's "stringify":

var strJSON = JSON.stringify(oEvent);

EDIT:Investigating further, I changed the dataType to "text" and tried sending a long string of numbers. It works up until ~3500 characters then chokes (and when I say "choke" I mean that the request arrives at the server with a null $_POST.)

My PHP post_max_size is 64M, so that's not it. Someone suggested using Apache's "LimitRequestBody" which wasn't in httpd.conf, so I added "LimitRequestBody 0" to it and rebooted Apache. That didn't help either.

Any other suggestions???

解决方案

This is probably due to your server's configuration. Check php.ini for the setting max_post_size and ensure that it is sufficiently large to post your data. Also check your web server settings - Apache has a LimitRequestBody directive which could be causing your problem. Finally, check your web server and PHP error logs to see if the large post is triggering any errors.

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