Does the jQuery ajax call support PATCH?

问题

When I send this ajax rquest:

$.ajax({
            headers : {
                'Accept' : 'application/json',
                'Content-Type' : 'application/json'
            },
            url : 'http://localhost:8080/wutup/venues/12',
            type : 'PATCH',
            data : JSON.stringify({description: "842490812321309213801923 gonzagazors"}),
            success : function(response, textStatus, jqXhr) {
                console.log("Venue Successfully Patched!");
            },
            error : function(jqXHR, textStatus, errorThrown) {
                // log the error to the console
                console.log("The following error occured: " + textStatus, errorThrown);
            },
            complete : function() {
                console.log("Venue Patch Ran");
            }
        });

I receive this error:

XMLHttpRequest cannot load http ://localhost:8080/wutup/venues/12. Method PATCH is not allowed by Access-Control-Allow-Methods.

However, using curl:

 $ curl -v -H "Accept: application/json" -H "Content-type: application/json" -X PATCH -    d' {"address": "8421 Gonzaga Ave"}'  http://localhost:8080/wutup/venues/12 

About to connect() to localhost port 8080 (#0)
Trying 127.0.0.1... connected
Connected to localhost (127.0.0.1) port 8080 (#0)
PATCH /wutup/venues/12 HTTP/1.1
User-Agent: curl/7.21.1 (i686-pc-mingw32) libcurl/7.21.1 OpenSSL/0.9.8r zlib/1.2.3
Host: localhost:8080
Accept: application/json
Content-type: application/json
Content-Length: 57

HTTP/1.1 204 No Content
Server: Apache-Coyote/1.1
Access-Control-Allow-Origin: *
Date: Fri, 30 Nov 2012 08:14:35 GMT

Connection #0 to host localhost left intact
Closing connection #0

回答1:

The $.ajax method does support HTTP PATCH.

The problem you are seeing is that the ajax method looks for PATCH in the Access-Control-Allow-Methods response header of the options preflight check. Either this header is missing from your response, or the PATCH method was not included in the value of this header. In either case, the problem is in the server, not in your client-side code.

Here's an example using Java:

response.addHeader("Access-Control-Allow-Methods", "GET, POST, PATCH, PUT, DELETE");

回答2:

Could it be your browser doesn't support the PATCH method?

Taken from jQuery AJAX API documentation:

The type of request to make ("POST" or "GET"), default is "GET". Note: Other HTTP request methods, such as PUT and DELETE, can also be used here, but they are not supported by all browsers.

来源：https://stackoverflow.com/questions/13642044/does-the-jquery-ajax-call-support-patch

标签

javascript

jquery

ajax

patch