[聚合文章] C# ajax跨域

<httpProtocol>  <customHeaders>    <add name="Access-Control-Allow-Methods" value="OPTIONS,POST,GET"/>    <add name="Access-Control-Allow-Headers" value="x-requested-with,content-type"/>    <add name="Access-Control-Allow-Origin" value="*" />  </customHeaders> </httpProtocol>

• 访问的ajax,改一下contentType,dataType, data处理一下确保传字符串

var jsonStr = {'userID':1};  $.ajax({    type: "post", //要用post方式        url: "http://url/ajax/mOperate.asmx/getMemberInfo",        contentType: "application/x-www-form-urlencoded; charset=utf-8",        data: toStr(jsonStr),        dataType: "text",        success: function (data) {            console.log(data)        },        error: function (XMLHttpRequest, textStatus, errorThrown) {            console.log(XMLHttpRequest);            console.log(textStatus);            console.log(errorThrown);            console.log("error");        }        });    function toStr(obj) {        var str = [];        for (var p in obj) {            str.push(encodeURIComponent(p) + "=" + encodeURIComponent(obj[p]));        }        return str.join("&");    }

结束，这样就跨域可以了，比较简单方便

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