结果显示为空
我创建了一个Customer JSON对象，其值如下所示：
{"Title":"Mr","FirstName":"S","LastName":"J","Birthday":"01/01/2011","Address":[{"Line1":"Line1","Line2":"Line2","City":"City","State":"State","Zip":"00000","County":"0000"},{"Line1":"Line11","Line2":"Line21","City":"City1","State":"State1","Zip":"11111","County":"1111"}],"Email":[{"Email":"sj@sj.com","EmailType":"Personal"},{"Email":"s.j1@company.com","EmailType":"Work"}],"Phone":[{"Phone":"1231231234","PhoneType":"Mobile"},{"Phone":"1231232345","PhoneType":"Work"}]} 我需要在Handlers / CustomerHandler.ashx中获取这些数据来执行一些数据库操作。 我的AJAX调用如下：
$.ajax({ type: "POST", contentType: "application/json; charset=utf-8", url: "Handlers/CustomerHandler.ashx", data: Customer, dataType: "json", success: insertCustomerCallback });
Dim customerJSON As String = HttpContext.Current.Request.Form("Customer")显示为空。
您可以使用json2.js中的JSON.stringify方法将客户作为JSON对象发送 ：
var Customer = { "Title": "Mr", "FirstName": "S", "LastName": "J", "Birthday": "01/01/2011", "Address": [{ "Line1": "Line1", "Line2": "Line2", "City": "City", "State": "State", "Zip": "00000", "County": "0000" }, { "Line1": "Line11", "Line2": "Line21", "City": "City1", "State": "State1", "Zip": "11111", "County": "1111"}], "Email": [{ "Email": "sj@sj.com", "EmailType": "Personal" }, { "Email": "s.j1@company.com", "EmailType": "Work"}], "Phone": [{ "Phone": "1231231234", "PhoneType": "Mobile" }, { "Phone": "1231232345", "PhoneType": "Work"}] }; $.ajax({ type: "POST", contentType: "application/json; charset=utf-8", url: "Handlers/CustomerHandler.ashx", data: JSON.stringify(Customer), dataType: "json", success: function (result) { } });
并在通用处理程序上从请求流中读取它：
Dim customer = New Byte(context.Request.InputStream.Length - 1) {} context.Request.InputStream.Read(customer, 0, customer.Length) Dim customerJSON = Encoding.UTF8.GetString(customer) // TODO: deserialize the JSON back to a Customer object
作为替代方案，您可以使用启用脚本的WebMethod 。
我想我找到了。 我必须按如下方式进行AJAX调用：
Customer = JSON.stringify(Customer); $.ajax({ type: "POST", contentType: "application/x-www-form-urlencoded", url: "Handlers/CustomerHandler.ashx?Operation=Insert", data: Customer, dataType: "json", success: insertCustomerCallback });
并使用以下代码获取数据
Dim customerJSON As String = HttpContext.Current.Request.Form（0）.ToString（）
谢谢，谢明
您可以考虑使用ASMX“ScriptService”而不是原始的HttpHandler。 使用ScriptService 可以自动将JSON输入反序列化为.NET对象 ，这看起来在您的场景中很有用。