asp.net - 如何使用 Ajax 和 ASP.NET WebMethod 传递 JSON 对象

Question

我在使用 Ajax 和 ASP.NET WebMethods 传递 JSON 对象时遇到问题

function setStudentInfo() {
    var jsonObjects = [
        { id: 1, name: "mike" },
        { id: 2, name: "kile" },
        { id: 3, name: "brian" },
        { id: 1, name: "tom" }
    ];

    $.ajax({
        type: "POST",
        url: "ConfigureManager.aspx/SetStudentInfo",
        contentType: "application/json; charset=utf-8",
        dataType: "json",
        async: false,
        data: { students: JSON.stringify(jsonObjects) },
        success: function (result) {
            alert('success');
        },
        error: function (result) {
            alert(result.responseText);
        }

    });
}

ASP.NET 代码

[WebMethod]
public static void SetStudentInfo(object students)
{
     //Here I want to iterate the 4 objects and to print their name and id
}

我收到以下错误:

"{"Message":"Invalid JSON primitive: students.","StackTrace":" at System.Web.Script.Serialization.JavaScriptObjectDeserializer.DeserializePrimitiveObject() at System.Web.Script.Serialization.JavaScriptObjectDeserializer.DeserializeInternal(Int32 depth) at System.Web.Script.Serialization.JavaScriptObjectDeserializer.BasicDeserialize(String input, Int32 depthLimit, JavaScriptSerializer serializer) at System.Web.Script.Serialization.JavaScriptSerializer.Deserialize(JavaScriptSerializer serializer, String input, Type type, Int32 depthLimit) at System.Web.Script.Serialization.JavaScriptSerializer.Deserialize[T](String input) at System.Web.Script.Services.RestHandler.GetRawParamsFromPostRequest(HttpContext context, JavaScriptSerializer serializer) at System.Web.Script.Services.RestHandler.GetRawParams(WebServiceMethodData methodData, HttpContext context) at System.Web.Script.Services.RestHandler.ExecuteWebServiceCall(HttpContext context, WebServiceMethodData methodData)","ExceptionType":"System.ArgumentException"}"

Answer 1

我知道这是一个老问题，但如果有人来这里寻求答案，这里就是解决方案；

var jsonObjects=[
    { id: 1, name: "mike" },
    { id: 2, name: "kile" },
    { id: 3, name: "brian" },
    { id: 1, name: "tom" }
];

$.ajax({
    type: "POST",
    url: "ConfigureManager.aspx/SetStudentInfo",
    contentType: "application/json; charset=utf-8",
    dataType: "json",
    async: false,
    data: JSON.stringify({ students: jsonObjects }),
    success: function (result) {
        alert('success');
    },
    error: function (result) {
        alert(result.responseText);
    }

});