ajax - Why am I getting 'Symfony2 No route found for "GET /module/%3C" ...', when similar calls work

Question

I'm getting: this error message:

No route found for "GET /module/%3C" (from "http://site/app_dev.php/module/page")

using the following ajax call:

   timeStamp = ( new Date() ).getTime();
   $.ajax( {
      method      : 'POST',
      url         : 'http://site/app_dev.php/module/page/Delete/' +
                    timeStamp,
      data        : formData,
      dataType    : 'json',
      async       : true,
      cache       : false,
      contentType : false,
      processData : false,

      success     : function( data ) { ... },

      error       : function( jqXHR, textStatus, errorThrown ) { ... }

    } );

Here is the page route annotation and function definitions that I'm trying to call:

/**
 * @Route("/module/page")
 * @Route("/module/page/{timeStamp}")
 * @Route("/module/page/Delete/{timeStamp}")
 *
 * @return:    page response HTML string, JSON encoded action results or
 *             JSON encoded error results.
 */
public function pageAction( $timeStamp=NULL ) { ... }

What is strange is that this function is successfully used to produce the page that contains several other similar ajax calls that do work in addition to the one above.

Here is one of the calls that work:

$.ajax( {
   method      : 'POST',
   data        : formData,
   dataType    : 'json',
   async       : true,
   cache       : false,
   contentType : false,
   enctype     : 'multipart/form-data',
   processData : false,

   success     : function( data, textStatus, jqXHR ) { ... ),

   error       : function( data ) { ... }

} );

The primary difference is that the ajax call that fails has an explicit url and the one that works uses the implicit address string of the page being displayed.

I tried the call with and without these two parts in the url, but get the same result either way.

I don't know if this is significant, but when I use the debugger in Chrome, the breakpoint at the first code line in the success function briefly highlights and then the page is replaced with the one displaying the 'No route found ...'

Since, the call uses message: 'POST', why would the error say 'Get' and using the explicit url that includes '/Delete' and '/' + timeStamp, why aren't these shown in the error message?

Incidentally. In the ajax call with the explicit url, I'm adding a timeStamp to prevent a previously cached response from being returned rather than making the actual call to the server to delete the information referenced in the formData object.

In another ajax call that returns the information that is supposed to be deleted by the failing call, I found that even though 'cache: false' was set, the call would return an outdated response from the a previous call if I didn't include the timeStamp in the explicit url, but with the timeStamp included, that case works fine.

标签： ajaxsymfony

Answer 1

问题是 html 元素，一个锚标记，它调用包含我认为不起作用的 ajax 的函数，也有一个“href”，它使它自己向服务器请求一个不存在的页面，并且其中包含奇怪的 '%3C' 字符。

所以真正的答案是不要缠在车轴上，一定要检查导致明显问题的一切。

在这种情况下，导致错误消息的调用发生在 ajax 服务器端对正确函数的调用之前，这就是为什么调试器显示即使执行在正确的断点处停止的原因由于显示未找到错误，成功功能控件被“拉走”。