将 Json 对象传递给 webmethod 给出内部服务器错误 500答案

【问题标题】：Passing Json Object to webmethod giving Internal server error 500将 Json 对象传递给 webmethod 给出内部服务器错误 500
【发布时间】：2014-07-06 07:48:50
【问题描述】：

<head runat="server">
    <title></title>
   <script src="//ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js" type="text/javascript"></script>
    <script type="text/javascript">
        function PassJavascriptObjectArraytoWebmethod() {

            var CustomerArr = [];
            var Customer = new Object();
            Customer.CustomerId = "1";
            Customer.Name = 'Rakesh';
            Customer.Address = 'Mumbai';

            CustomerArr.push(Customer);

            var Customer = new Object();
            Customer.CustomerId = "2";
            Customer.Name = 'Sandesh';
            Customer.Address = 'Banglore';

            CustomerArr.push(Customer);

            var param = JSON.stringify(CustomerArr)

            $.ajax({
                type: 'POST',
                url: 'Default2.aspx/AddCustomer',
                data: param,
                contentType: 'application/json; charset=utf-8',
                dataType: 'json',
                success: function(result) {
                alert(result.d);
                }
            });


        }



    </script>
</head>
<body>
    <form id="form1" runat="server">
    <div>
         <span onclick="javascript:PassJavascriptObjectArraytoWebmethod();">Call Customer</span>
    </div>
    </form>
</body>

这是我在 webmethod 后面的代码

[WebMethod]
public static string AddCustomer(Customer[] CustomerArr)
{
   return "some result";
}

这是我在控制台中遇到的异常

"Message":"Type \u0027System.Collections.Generic.IDictionary`2[[System.String, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089],[System.Object, mscorlib, Version =4.0.0.0，Culture=neutral，PublicKeyToken=b77a5c561934e089]]\u0027 不支持数组的反序列化。","StackTrace":" 在 System.Web.Script.Serialization.ObjectConverter.ConvertListToObject(IList 列表，类型类型, JavaScriptSerializer 序列化程序, Boolean throwOnError, IList&convertedList)\r\n 在 System.Web.Script.Serialization.ObjectConverter.ConvertObjectToTypeInternal(Object o, Type type, JavaScriptSerializer 序列化程序, Boolean throwOnError, Object&convertedObject)\r\n 在 System.Web .Script.Serialization.ObjectConverter.ConvertObjectToTypeMain(Object o, Type type, JavaScriptSerializer serializer, Boolean throwOnError, Object&convertedObject)\r\n at System.Web.Script.Serialization.JavaScriptSerializer.Deserialize(JavaScriptSerializer 序列化器, String 输入, Type type,在t32 depthLimit)\r\n 在 System.Web.Script.Serialization.JavaScriptSerializer.Deserialize[T]（字符串输入）\r\n 在 System.Web.Script.Services.RestHandler.GetRawParamsFromPostRequest（HttpContext 上下文，JavaScriptSerializer 序列化程序）\ r\n 在 System.Web.Script.Services.RestHandler.GetRawParams(WebServiceMethodData methodData, HttpContext context)\r\n 在 System.Web.Script.Services.RestHandler.ExecuteWebServiceCall(HttpContext context, WebServiceMethodData methodData)","ExceptionType" :"System.InvalidOperationException"

【问题讨论】：

标签： asp.net json

【解决方案1】：

你应该传递同名的对象数组

 $.ajax({
                type: 'POST',
                url: 'Default2.aspx/AddCustomer',
                data: {CustomerArr:param },
                // same name
                contentType: 'application/json; charset=utf-8',
                dataType: 'json',
                success: function(result) {
                alert(result.d);
                }
            });

【讨论】：