我使用vS2012创建了一个mvc4 web api项目。我使用以下教程来解决跨源资源共享问题,“http://blogs.msdn.com/b/carlosfigueira/archive/2012/07/02/cors-support-in-asp-net-web-api- RC-version.aspx”。它运行成功,我成功地将数据从客户端发布到服务器。
在我的项目中实现Autherization之后,我使用以下教程来实现OAuth2,“http://community.codesmithtools.com/CodeSmith_Community/b/tdupont/archive/2011/03/18/oauth-2-投0中MVC-两条腿-implementation.aspx”。这有助于我在客户端获取RequestToken。
但是当我从客户端发布数据时,我收到了错误, “XMLHttpRequest无法加载http://。请求标头字段Access-Control-Allow-Headers不允许使用Content-Type。”
我的客户端代码如下,
function PostLogin() {
var Emp = {};
Emp.UserName = $("#txtUserName").val();
var pass = $("#txtPassword").val();
var hash = $.sha1(RequestToken + pass);
$('#txtPassword').val(hash);
Emp.Password= hash;
Emp.RequestToken=RequestToken;
var createurl = "http://localhost:54/api/Login";
$.ajax({
type: "POST",
url: createurl,
contentType: "application/json; charset=utf-8",
data: JSON.stringify(Emp),
statusCode: {
200: function () {
$("#txtmsg").val("done");
toastr.success('Success.', '');
}
},
error:
function (res) {
toastr.error('Error.', 'sorry either your username of password was incorrect.');
}
});
};
我的 api控制器看起来像,
[AllowAnonymous]
[HttpPost]
public LoginModelOAuth PostLogin([FromBody]LoginModelOAuth model)
{
var accessResponse = OAuthServiceBase.Instance.AccessToken(model.RequestToken, "User", model.Username, model.Password, model.RememberMe);
if (!accessResponse.Success)
{
OAuthServiceBase.Instance.UnauthorizeToken(model.RequestToken);
var requestResponse = OAuthServiceBase.Instance.RequestToken();
model.ErrorMessage = "Invalid Credentials";
return model;
}
else
{
// to do return accessResponse
return model;
}
}
我的 webconfig 文件看起来像,
<configuration>
<configSections>
<section name="entityFramework" type="System.Data.Entity.Internal.ConfigFile.EntityFrameworkSection, EntityFramework, Version=4.4.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" requirePermission="false" />
<section name="oauth" type="MillionNodes.Configuration.OAuthSection, MillionNodes, Version=1.0.0.0, Culture=neutral"/>
<sectionGroup name="dotNetOpenAuth" type="DotNetOpenAuth.Configuration.DotNetOpenAuthSection, DotNetOpenAuth.Core">
<section name="messaging" type="DotNetOpenAuth.Configuration.MessagingElement, DotNetOpenAuth.Core" requirePermission="false" allowLocation="true" />
<section name="reporting" type="DotNetOpenAuth.Configuration.ReportingElement, DotNetOpenAuth.Core" requirePermission="false" allowLocation="true" />
</sectionGroup>
</configSections>
<oauth defaultProvider="DemoProvider" defaultService="DemoService">
<providers>
<add name="DemoProvider" type="MillionNodes.OAuth.DemoProvider, MillionNodes" />
</providers>
<services>
<add name="DemoService" type="MillionNodes.OAuth.DemoService, MillionNodes" />
</services>
</oauth>
<system.web>
<httpModules>
<add name="OAuthAuthentication" type="MillionNodes.Module.OAuthAuthenticationModule, MillionNodes, Version=1.0.0.0, Culture=neutral"/>
</httpModules>
<compilation debug="true" targetFramework="4.0" />
<authentication mode="Forms">
<forms loginUrl="~/Account/Login" timeout="2880" />
</authentication>
<pages>
<namespaces>
<add namespace="System.Web.Helpers" />
<add namespace="System.Web.Mvc" />
<add namespace="System.Web.Mvc.Ajax" />
<add namespace="System.Web.Mvc.Html" />
<add namespace="System.Web.Optimization" />
<add namespace="System.Web.Routing" />
<add namespace="System.Web.WebPages" />
</namespaces>
</pages>
</system.web>
<system.webServer>
<validation validateIntegratedModeConfiguration="false" />
<modules>
<add name="OAuthAuthentication" type="MillionNodes.Module.OAuthAuthenticationModule, MillionNodes, Version=1.0.0.0, Culture=neutral" preCondition="" />
</modules>
<httpProtocol>
<customHeaders>
<add name="Access-Control-Allow-Origin" value="*" />
</customHeaders>
</httpProtocol>
</system.webServer>
<dotNetOpenAuth>
<messaging>
<untrustedWebRequest>
<whitelistHosts>
<!-- Uncomment to enable communication with localhost (should generally not activate in production!) -->
<!--<add name="localhost" />-->
</whitelistHosts>
</untrustedWebRequest>
</messaging>
<!-- Allow DotNetOpenAuth to publish usage statistics to library authors to improve the library. -->
<reporting enabled="true" />
答案 0 :(得分:164)
正如本文Error in chrome: Content-Type is not allowed by Access-Control-Allow-Headers暗示的那样,只需将附加标题添加到您的web.config中,就像这样......
<httpProtocol>
<customHeaders>
<add name="Access-Control-Allow-Origin" value="*" />
<add name="Access-Control-Allow-Headers" value="Origin, X-Requested-With, Content-Type, Accept" />
</customHeaders>
</httpProtocol>
答案 1 :(得分:106)
很可能是由于跨源请求,但可能不是。对我来说,我一直在调试API并将Access-Control-Allow-Origin
设置为*
,但似乎最新版本的Chrome需要额外的标头。如果您使用的是PHP,请尝试将以下内容添加到您的文件中:
header("Access-Control-Allow-Origin: *");
header("Access-Control-Allow-Headers: Origin, X-Requested-With, Content-Type, Accept");
确保您尚未在其他文件中使用header
,否则您将收到一个令人讨厌的错误。有关详情,请参阅the docs。
答案 2 :(得分:18)
我知道这是我在上面的答案中使用的旧线程,并且必须添加:
header('Access-Control-Allow-Methods: GET, POST, PUT');
所以我的标题如下:
header('Access-Control-Allow-Origin: *');
header("Access-Control-Allow-Headers: Origin, X-Requested-With, Content-Type, Accept");
header('Access-Control-Allow-Methods: GET, POST, PUT');
问题已解决。
答案 3 :(得分:6)
对于Nginx,唯一对我有用的是添加此标题:
add_header 'Access-Control-Allow-Headers' 'Authorization,Content-Type,Accept,Origin,User-Agent,DNT,Cache-Control,X-Mx-ReqToken,Keep-Alive,X-Requested-With,If-Modified-Since';
与Access-Control-Allow-Origin标头一起:
add_header 'Access-Control-Allow-Origin' '*';
然后重新加载nginx配置,它工作得很好。信用https://gist.github.com/algal/5480916。
答案 4 :(得分:2)
遇到了同样的问题,但与我使用 ASP.NET 开发 WebAPI 服务器的其他答案不同。
我已经允许 Corps 并且它适用于 GET 请求。为了使 POST 请求工作,我需要将“AllowAnyHeader()”和“AllowAnyMethod()”选项添加到 Corp 选项列表中。
Start 类中相关函数的基本部分如下所示:
ConfigureServices 方法:
services.AddCors(options =>
{
options.AddPolicy(name: MyAllowSpecificOrigins,
builder =>
{
builder
.WithOrigins("http://localhost:4200")
.AllowAnyHeader()
.AllowAnyMethod()
//.AllowCredentials()
;
});
});
配置方法:
app.UseCors(MyAllowSpecificOrigins);
发现此: