我已经为您创建了一个简化的演示项目。
您可以从本地fiddler 尝试上述 以查看标头。这是一个解释。
cors/blob/master/CORS/Global.asax.cs)
所有这一切都称为WebApiConfig。只是代码组织而已。
public class WebApiApplication : System.Web.HttpApplication
{
protected void Application_Start()
{
WebApiConfig.Register(GlobalConfiguration.Configuration);
}
}
cors/blob/master/CORS/App_Start/WebApiConfig.cs)
您这里的关键方法是EnableCrossSiteRequests方法。这就是您需要做的 事情。该EnableCorsAttribute是一个全球范围的CORS属性。
public static class WebApiConfig
{
public static void Register(HttpConfiguration config)
{
EnableCrossSiteRequests(config);
AddRoutes(config);
}
private static void AddRoutes(HttpConfiguration config)
{
config.Routes.MapHttpRoute(
name: "Default",
routeTemplate: "api/{controller}/"
);
}
private static void EnableCrossSiteRequests(HttpConfiguration config)
{
var cors = new EnableCorsAttribute(
origins: "*",
headers: "*",
methods: "*");
config.EnableCors(cors);
}
}
cors/blob/master/CORS/Controllers/ValuesController.cs)
该Get方法接收EnableCors我们全局应用的属性。该Another方法将覆盖global EnableCors。
public class ValuesController : ApiController
{
// GET api/values
public IEnumerable<string> Get()
{
return new string[] {
"This is a CORS response.",
"It works from any origin."
};
}
// GET api/values/another
[HttpGet]
[EnableCors(origins:"http://www.bigfont.ca", headers:"*", methods: "*")]
public IEnumerable<string> Another()
{
return new string[] {
"This is a CORS response. ",
"It works only from two origins: ",
"1. www.bigfont.ca ",
"2. the same origin."
};
}
}
cors/blob/master/CORS/Web.config)
您无需在web.config中添加任何特殊内容。实际上，这就是演示的web.config的样子-它是空的。
<?xml version="1.0" encoding="utf-8"?>
<configuration>
</configuration>
var url = "https://cors-webapi.azurewebsites.net/api/values"
$.get(url, function(data) {
console.log("We expect this to succeed.");
console.log(data);
});
var url = "https://cors-webapi.azurewebsites.net/api/values/another"
$.get(url, function(data) {
console.log(data);
}).fail(function(xhr, status, text) {
console.log("We expect this to fail.");
console.log(status);
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
602392714
清零编程群