MVC Ajax 提交是防止SCRF攻击

//在View中

<script type="text/javascript">
  @functions{
    public string ToKenHeaderValue()
   {
        string cookieToken,fromToken;
        AntiForgery.GetTokens(null,out cookieToken,out fromToken);
        return  cookieToken+":"+fromToken;
   }
}

$function({

  。。。。。
  $.ajax("api/Value",{
   data:{...},
    type:'post',
   dataType:'json',
   headers:{'RequestVerificationToKen':'@ToKenHeaderValue()'},
  success:fucntion(data){....}
   })
})
</script>

//自己写的过滤器

 1 public class MyValidateAntiForgeryToKenAttribute:FileterAttribute,IAuthorizationFilter
 {
     private void ValidateRequestHeader(HttpRequestBase request)
   {
        string cookieToKen="";
        string fromToKen="";
        string tokenValue=request.Header["RequestVerificationToKen"];
        if(!string.IsNullOrEmpty(tokenValue))
         {
              string[] tokens=tokenValue.Split(':');
              if(tokens.Length=)
               {
                     cookieToken=tokens[].Trim();
                     fromToKen=tokens[].Trim();
                }
         }
     AntiForGery.Validate(cookieToken,fromToken);
   }
 }
20 public void OnAuthiorization(AuthorizationContexte context)
21 {
22    try
23    {
24       if(context.HttpContext.Request.IsAjaxRequest())//判断是否ajax提交
25        {
26           ValidateRequetHeader(context.HttpContext.Request);
27        }
28        else
29          AntiForgery.Validate();
30  }
31  catch
32  {
33       throw new HttpAntiForgeryException("...");
34  }

在Controller的Action中

 [HttpPost]//指示POST提交
 [MyValidateAntiForgeryToKen]//这儿调用自己写的过滤器，实现防止CSRF攻击
 public ActionResult Value()
 {
 .......
 }

参考：Preventing Cross-Site Request Forgery (CSRF) Attacks