C#.NET WebService 返回对象
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C#.NET WebService returning object
提问by max
I am creating a Web Service using ASP.NET C#. I am sending various data types from the webservice so I use the following structure.
我正在使用 ASP.NET C# 创建一个 Web 服务。我从网络服务发送各种数据类型，所以我使用以下结构。
public enum WS_ServiceResponseResult
{
Success,
Failure,
}
public class WS_ServiceResponse
{
public WS_ServiceResponseResult result { get; set; }
public object data { get; set; }
}
public class WS_User
{
public long id{ get; set; }
public string name{ get; set; }
}
Webservice Sample Method
网络服务示例方法
[WebMethod(EnableSession = true)]
public WS_ServiceResponse LogIn(string username, string pasword)
{
WS_ServiceResponse osr = new WS_ServiceResponse();
long userID = UserController.checkLogin(username, pasword);
if (userID != 0)
{
osr.result = WS_ServiceResponseResult.Success;
osr.data = new WS_User() { id = userID, name = username };
}
else
{
osr.result = WS_ServiceResponseResult.Failure;
osr.data = "Invalid username/password!";
}
return osr;
}
I am using two client types, javascript and C#.NET Windows Form. When I call from javascript I get no problem and the osr.data is filled with WS_User. So i can use osr.data.id easily. But when I use from C#.NET (proxy is generated using "Add Web Reference") I can successfully call but when the result arrives I get a Soap Exception
我使用两种客户端类型，javascript 和 C#.NET Windows 窗体。当我从 javascript 调用时，我没有问题，并且 osr.data 充满了 WS_User。所以我可以很容易地使用 osr.data.id。但是当我从 C#.NET 使用时（代理是使用“添加 Web 引用”生成的）我可以成功调用但是当结果到达时我得到一个 Soap Exception
{System.Web.Services.Protocols.SoapException: System.Web.Services.Protocols.SoapException: Server was unable to process request. ---> System.InvalidOperationException: There was an error generating the XML document. ... ...
{System.Web.Services.Protocols.SoapException：System.Web.Services.Protocols.SoapException：服务器无法处理请求。---> System.InvalidOperationException: 生成 XML 文档时出错。……
What am I missing? I Guess object is not well defined and causing the problems. What are the workarounds?
我错过了什么？我猜对象没有明确定义并导致问题。有哪些解决方法？
Thanks
谢谢
Maksud
马克苏德
Addition:
添加：
If add the following dummy method, then it works nicely. Hope it helps, to get the solution.
如果添加以下虚拟方法，则效果很好。希望它有所帮助，以获得解决方案。
[WebMethod]
public WS_User Dummy()
{
return new WS_User();
}
采纳答案by Arthur
I had a similar Problem returning an "object" (multiple classes possible) Here is a sample code:
我有一个类似的问题，返回一个“对象”（可能有多个类）这是一个示例代码：
[Serializable()]
[XmlRoot(ElementName="Object")]
public sealed class XMLObject
{
private Object _Object;
[XmlElement(Type=typeof(App.Projekte.Projekt), ElementName="Projekt")]
[XmlElement(Type=typeof(App.Projekte.Task), ElementName="Task")]
[XmlElement(Type=typeof(App.Projekte.Mitarbeiter), ElementName="Mitarbeiter")]
public Object Object
{
get
{
return _Object;
}
set
{
_Object = value;
}
}
}
I think you should change your code this way:
我认为您应该以这种方式更改代码：
[XmlRoot(ElementName="ServiceResponse")]
public class WS_ServiceResponse
{
public WS_ServiceResponseResult result { get; set; }
[XmlElement(Type=typeof(WS_User), ElementName="WS_User")]
[XmlElement(Type=typeof(string), ElementName="Text")]
public object data { get; set; }
}
