AJAX跨域调用ASP.NET MVC的问题及解决方案

问题描述：

解决方法：

只需要在web.config中添加如下标为红色的内容即可：

<system.webServer>

<httpProtocol>

<customHeaders>

<add name="Access-Control-Allow-Origin" value="*" />

<add name="Access-Control-Allow-Headers" value="Content-Type" />

<add name="Access-Control-Allow-Methods" value="GET, POST, PUT, DELETE, OPTIONS" />

</customHeaders>

</httpProtocol>

<handlers>

<remove name="ExtensionlessUrlHandler-Integrated-4.0" />

<remove name="OPTIONSVerbHandler" />

<remove name="TRACEVerbHandler" />

<add name="ExtensionlessUrlHandler-Integrated-4.0" path="*." verb="*" type="System.Web.Handlers.TransferRequestHandler" preCondition="integratedMode,runtimeVersionv4.0" />

</handlers>

</system.webServer>

注意：

当需要cookie做身份验证时会出错：

表头中可看到set-cookie但是，浏览器添加不上。

解决方法：

1."Access-Control-Allow-Origin"对应的值不能为通配符“*”。徐添加request headers中的origin的值。

2.在web.config中添加一下代码表示允许跨域发送Cookie

 <add name="Access-Control-Allow-Credentials" value="true" />

3.在ajax请求中应加入xhrFields: {withCredentials: true},否则，依然不会发送Cookie

  function clickAjax() {
        $.ajax({
            type: "post",
            data:{UserName:"admin",PassWord:"123",BtnSubmit:"Login"},
            xhrFields: {withCredentials: true},
            url: "http://localhost:13250/Authentication/DoJsonResult",
            success: function (result) {
                console.log(result);
                window.location.href = "clickajax.html"
            }
        });
    }

参考资料：

https://www.cnblogs.com/chenxizhang/p/3821703.html

https://blog.csdn.net/a317560315/article/details/78397369

AJAX跨域调用ASP.NET MVC的问题及解决方案

猜你喜欢