当我发送此ajax rquest时:
$.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"); } });
我收到此错误:
XMLHttpRequest无法加载http://:// localhost:8080 / wutup / venues / 12。Access- Control-Allow-Methods不允许使用方法PATCH。
但是,使用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
该$.ajax方法 确实 支持HTTP PATCH。
$.ajax
您看到的问题是该ajax方法Access-Control-Allow- Methods在选项预检检查的响应标头中查找PATCH 。您的响应中缺少此标头,或者此标头的值中未包含PATCH方法。无论哪种情况,问题都出在服务器上,而不是客户端代码中。
ajax
Access-Control-Allow- Methods
这是使用Java的示例:
response.addHeader("Access-Control-Allow-Methods", "GET, POST, PATCH, PUT, DELETE");