Question

我在MVC 5中创建了一个项目。我想从jquery中调用一个动作方法。此操作将返回json对象。在jQuery ajax id

中

parse4cn1

但在浏览器中抛出错误。如果我设置

dataType: 'jsonp',

投掷

阻止跨源请求：同源策略禁止在http：.....
读取远程资源

我在web配置和应用程序开始请求中设置属性，如

dataType: 'json'

void Application_BeginRequest(object sender, EventArgs e)
{
    HttpContext.Current.Response.AppendHeader("Access-Control-Allow-Origin", "*");
    HttpContext.Current.Response.AddHeader("Access-Control-Allow-Headers", "*");
    HttpContext.Current.Response.AddHeader("Access-Control-Allow-Credentials", "true");
}

中的

：

web.config

我的控制器操作

<system.webServer>
    <modules>
        <remove name="FormsAuthentication"/>
    </modules>
    <httpProtocol>
        <customHeaders>
            <add name="Access-Control-Allow-Origin" value="*" />
            <add name="Access-Control-Allow-Methods" value="GET, PUT, POST, DELETE, HEAD" />
            <add name="Access-Control-Allow-Headers" value="Origin, X-Requested-With, Content-Type, Accept" />
        </customHeaders>
    </httpProtocol>
</system.webServer>

我的jQuery请求

public class ProductApiController : Controller
{
    [HttpGet]
    public JsonResult GetProductJson(int Productid, string Key)
    {
        return this.Json(new { Errorcode = "1", data = "data json success" }, JsonRequestBehavior.AllowGet);
    }

谢谢

Answer 1

在过滤器中添加

  public override void OnActionExecuting(ActionExecutingContext filterContext)
    {
        filterContext.RequestContext.HttpContext.Response.AddHeader("Access-Control-Allow-Origin", "*");
        filterContext.RequestContext.HttpContext.Response.AddHeader("Access-Control-Allow-Headers", "x-requested-with, Content-Type, origin, authorization, accept, client-security-token");
        filterContext.RequestContext.HttpContext.Response.AddHeader("Access-Control-Allow-Methods", "GET,PUT,POST,DELETE,OPTIONS");
        filterContext.RequestContext.HttpContext.Response.AddHeader("Access-Control-Max-Age", "1000");
        base.OnActionExecuting(filterContext);
    }

控制器应该是

  [AllowCrossSiteJson]
    public JsonResult Getvalue(string Key, int id)
    {
        Result objresult = new Result();
        try
        {

阻止跨源请求：同源策略不允许读取远程资源MVC 5

1 个答案: