之前我没有使用过Microsoft web.api而且我无法获得put请求。
我将一个简单的web.api控制器放在一起如下：
[EnableCors(origins: "*", headers: "*", methods: "GET,PUT,POST,DELETE,OPTIONS")]
public class UserEventsController : ApiController
{
private Repository repository = new Repository();
public HttpResponseMessage Get()
{
var resp = Request.CreateResponse("This will be an event list");
return resp;
}
public HttpResponseMessage Put(string data)
{
return Request.CreateResponse(HttpStatusCode.OK, "This will be a PUT response.");
}
}
使用fiddler中的以下请求和响应，get请求正常工作：
OPTIONS http://localhost:59365/api/userevents HTTP/1.1
Host: localhost:59365
Connection: keep-alive
Access-Control-Request-Method: GET
Origin: http://localhost:57995
User-Agent: Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/34.0.1847.131 Safari/537.36
Access-Control-Request-Headers: accept, content-type
Accept: */*
Referer: http://localhost:57995/
Accept-Encoding: gzip,deflate,sdch
Accept-Language: en-US,en;q=0.8,en-GB;q=0.6
HTTP/1.1 200 OK
Cache-Control: no-cache
Pragma: no-cache
Expires: -1
Server: Microsoft-IIS/8.0
Access-Control-Allow-Origin: *
Access-Control-Allow-Headers: content-type
X-AspNet-Version: 4.0.30319
X-SourceFiles: =?UTF-8?B? QzpcZGF0YVxwcm9qZWN0c1xBcnRlcnlNZWRpYVxQaGlsaXBzLkV2ZW50c1xQaGlsaXBzLkV2ZW50cy5XZWJVSVxhcGl cdXNlcmV2ZW50cw==?=
X-Powered-By: ASP.NET
Date: Mon, 12 May 2014 15:52:48 GMT
Content-Length: 0
GET http://localhost:59365/api/userevents HTTP/1.1
Host: localhost:59365
Connection: keep-alive
Accept: text/plain, */*; q=0.01
Origin: http://localhost:57995
User-Agent: Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/34.0.1847.131 Safari/537.36
Content-Type: application/json
Referer: http://localhost:57995/
Accept-Encoding: gzip,deflate,sdch
Accept-Language: en-US,en;q=0.8,en-GB;q=0.6
HTTP/1.1 200 OK
Cache-Control: no-cache
Pragma: no-cache
Content-Type: application/json; charset=utf-8
Expires: -1
Server: Microsoft-IIS/8.0
Access-Control-Allow-Origin: *
X-AspNet-Version: 4.0.30319
X-SourceFiles: =?UTF-8?B? QzpcZGF0YVxwcm9qZWN0c1xBcnRlcnlNZWRpYVxQaGlsaXBzLkV2ZW50c1xQaGlsaXBzLkV2ZW50cy5XZWJVSVxhcGl cdXNlcmV2ZW50cw==?=
X-Powered-By: ASP.NET
Date: Mon, 12 May 2014 15:54:38 GMT
Content-Length: 28
"This will be an event list"
但是，当我尝试执行put请求时，我得到以下内容：
OPTIONS http://localhost:59365/api/userevents HTTP/1.1
Host: localhost:59365
Connection: keep-alive
Access-Control-Request-Method: PUT
Origin: http://localhost:57995
User-Agent: Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/34.0.1847.131 Safari/537.36
Access-Control-Request-Headers: accept, content-type
Accept: */*
Referer: http://localhost:57995/
Accept-Encoding: gzip,deflate,sdch
Accept-Language: en-US,en;q=0.8,en-GB;q=0.6
HTTP/1.1 405 Method Not Allowed
Cache-Control: no-cache
Pragma: no-cache
Allow: GET
Content-Type: application/json; charset=utf-8
Expires: -1
Server: Microsoft-IIS/8.0
X-AspNet-Version: 4.0.30319
X-SourceFiles: =?UTF-8?B? QzpcZGF0YVxwcm9qZWN0c1xBcnRlcnlNZWRpYVxQaGlsaXBzLkV2ZW50c1xQaGlsaXBzLkV2ZW50cy5XZWJVSVxhcGl cdXNlcmV2ZW50cw==?=
X-Powered-By: ASP.NET
Date: Mon, 12 May 2014 15:56:58 GMT
Content-Length: 72
{"Message":"The requested resource does not support http method 'PUT'."}
在Chrome的开发者控制台中，我收到的错误如下：
OPTIONS http://localhost:59365/api/userevents 405 (Method Not Allowed) jquery- 1.9.0.js:8475
XMLHttpRequest cannot load http://localhost:59365/api/userevents. No 'Access-Control- Allow-Origin' header is present on the requested resource. Origin 'http://localhost:57995' is therefore not allowed access.
对put的jquery调用如下：
$.ajax({
type: "PUT",
url: servicesBaseUrl,
contentType: "application/json",
data: '{ "name": "Tricia","age": "37"}',
dataType: "text",
success: function (response) {
// Put the plain text in the PRE tag.
$("#putResponse").text(response);
},
error: function (error) {
// Log any error.
console.log("ERROR:", error);
},
complete: function () {
// When this completes, execute something?
}
});
有趣的是，如果我从控制器中删除EnableCors属性并从
更改WebApiConfig类中的cors配置config.EnableCors();
到
var cors = new EnableCorsAttribute("*", "*", "*");
config.EnableCors(cors);
如果获得以下
PUT http://localhost:59365/api/userevents 405 (Method Not Allowed)
OPTIONS http://localhost:59365/api/userevents HTTP/1.1
Host: localhost:59365
Connection: keep-alive
Access-Control-Request-Method: PUT
Origin: http://localhost:57995
User-Agent: Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/34.0.1847.131 Safari/537.36
Access-Control-Request-Headers: accept, content-type
Accept: */*
Referer: http://localhost:57995/
Accept-Encoding: gzip,deflate,sdch
Accept-Language: en-US,en;q=0.8,en-GB;q=0.6
HTTP/1.1 200 OK
Cache-Control: no-cache
Pragma: no-cache
Expires: -1
Server: Microsoft-IIS/8.0
Access-Control-Allow-Origin: *
Access-Control-Allow-Methods: PUT
Access-Control-Allow-Headers: content-type
X-AspNet-Version: 4.0.30319
X-SourceFiles: =?UTF-8?B? QzpcZGF0YVxwcm9qZWN0c1xBcnRlcnlNZWRpYVxQaGlsaXBzLkV2ZW50c1xQaGlsaXBzLkV2ZW50cy5XZWJVSVxhcGl cdXNlcmV2ZW50cw==?=
X-Powered-By: ASP.NET
Date: Mon, 12 May 2014 16:17:29 GMT
Content-Length: 0
如果回来确定要提前预订？ 其次是：
PUT http://localhost:59365/api/userevents HTTP/1.1
Host: localhost:59365
Connection: keep-alive
Content-Length: 31
Accept: text/plain, */*; q=0.01
Origin: http://localhost:57995
User-Agent: Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/34.0.1847.131 Safari/537.36
Content-Type: application/json
Referer: http://localhost:57995/
Accept-Encoding: gzip,deflate,sdch
Accept-Language: en-US,en;q=0.8,en-GB;q=0.6
{ "name": "Tricia","age": "37"}
HTTP/1.1 405 Method Not Allowed
Cache-Control: no-cache
Pragma: no-cache
Allow: GET
Content-Type: application/json; charset=utf-8
Expires: -1
Server: Microsoft-IIS/8.0
Access-Control-Allow-Origin: *
X-AspNet-Version: 4.0.30319
X-SourceFiles: =?UTF-8?B? QzpcZGF0YVxwcm9qZWN0c1xBcnRlcnlNZWRpYVxQaGlsaXBzLkV2ZW50c1xQaGlsaXBzLkV2ZW50cy5XZWJVSVxhcGl cdXNlcmV2ZW50cw==?=
X-Powered-By: ASP.NET
Date: Mon, 12 May 2014 16:17:29 GMT
Content-Length: 72
{"Message":"The requested resource does not support http method 'PUT'."}
非常感谢帮助解决这个问题！
干杯