c# – Asmx web服务如何返回JSON而不是XML?
发布时间:2020-12-16 01:20:53 所属栏目:百科 来源:网络整理
导读:我的服务方式: [WebMethod][ScriptMethod(ResponseFormat = ResponseFormat.Json)]public string getDataFromTrainingMaster(){ ListTrainingMasterDataStruct results = new DAL().GetDataFromTrainingMaster(); JavaScriptSerializer js = new JavaScript
我的服务方式:
[WebMethod] [ScriptMethod(ResponseFormat = ResponseFormat.Json)] public string getDataFromTrainingMaster() { List<TrainingMasterDataStruct> results = new DAL().GetDataFromTrainingMaster(); JavaScriptSerializer js = new JavaScriptSerializer(); return js.Serialize(results).ToString(); } 我的.net Web服务返回包含在XML中的JSON,如下所示: <?xml version="1.0" encoding="UTF-8"?> <string xmlns="http://tempuri.org/"> [{"Training_Code":"1234 ","Training_Duration":"2hrs ","Training_Startdate":"2/14/2013 3:00:00 PM","Training_Enddate":"2/14/2013 5:00:00 PM","Trainer_ID":1,"Training_Location":"B-Wing Training room-4","Comments":"C# training","Keyword":"C#1234","NumberofDays":1},{"Training_Code":"4321 ","Training_Duration":"16 ","Training_Startdate":"2/17/2013 10:30:00 AM","Training_Enddate":"2/17/2013 5:30:00 PM","Trainer_ID":2,"Training_Location":"A-Wing Training Room-6","Comments":"Objective-C","Keyword":"Obj-C4321","NumberofDays":2}] 我需要它采用以下格式: "Training":[{"Training_Code":"1234 ","NumberofDays":2}]</string> 我怎样才能做到这一点? 解决方法
您无需自己创建JSON字符串.返回列表< TrainingMasterDataStruct>并让.NET在运行时为您串行化:
[WebMethod] [ScriptMethod(ResponseFormat = ResponseFormat.Json)] public List<TrainingMasterDataStruct> getDataFromTrainingMaster() { List<TrainingMasterDataStruct> list = doStuff(); return list; } 其次,非静态方法签名表明这是一个asmx文件(页面方法是静态的).默认情况下,这些序列化为xml,因此您需要取消注释或将System.Web.Script.Services.ScriptService属性添加到Web服务类: [WebService(Namespace = "http://tempuri.org/")] [WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)] [System.Web.Script.Services.ScriptService] public class WebService : System.Web.Services.WebService { 这允许它返回JSON.一个问题:JSON序列化程序似乎能够序列化比XML更多的类型,所以如果你想输出/或 – 在这里使用Lists和数组而不是集合,请小心. 第三,也是非常重要的是,CLIENT必须向服务器指出它需要JSON响应. 为了测试和验证第三点,我建议您按照上述步骤,然后使用jQuery从测试网页调用Web服务并监视Fiddler中的流量.如下所示: $.ajax({ type: "POST",url: "WebService.asmx/getDataFromTrainingMaster",contentType: "application/json; charset=utf-8",dataType: "json",data: "",success: function (msg) { } }); 这就是JSON请求/响应的样子 – 特别注意POST,Accept和Content-Type标头: POST http://scrubbed/GetVehicles HTTP/1.1 x-requested-with: XMLHttpRequest Accept-Language: en-gb Accept: application/json,text/javascript,*/* Content-Type: application/json; charset=utf-8 Accept-Encoding: gzip,deflate User-Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; WOW64; Trident/4.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; .NET4.0C; .NET4.0E; InfoPath.2) Host: scrubbed Content-Length: 0 Connection: Keep-Alive Pragma: no-cache HTTP/1.1 200 OK Cache-Control: private,max-age=0 Content-Type: application/json; charset=utf-8 Server: Microsoft-IIS/7.5 X-Powered-By: ASP.NET Date: Mon,04 Oct 2010 10:49:12 GMT Content-Length: 1417 {"d":{"Data":[{"Key":1,"Value":[{"VehicleId":15036,"VehicleAlias":"Whatever","Expiry":"/Date(1915983035043)/","Expired":false},{"VehicleId": (编辑:李大同) 【声明】本站内容均来自网络,其相关言论仅代表作者个人观点,不代表本站立场。若无意侵犯到您的权利,请及时与联系站长删除相关内容! |