2
我在從Android設備使用KSOAP2發送到.NET Web服務的複雜對象的屬性上出現「強制轉換」錯誤。該屬性是一個複雜對象的數組。互聯網上的文檔幫助我發送和接收簡單的數據類型（字符串，整數，日期等）。我甚至可以從.NET Web服務中讀取一組複雜的對象。我只是無法將一組複雜的對象發送回Web服務。請幫忙。這是我有：複雜對象託管複雜對象到.NET Web服務的陣列
環境： 客戶端= Android開發使用最新的KSOAP lib進行通信。 服務器= .NET Web服務（Visual Studio 2008）。注意：這不是WCF。
.NET Web服務：
[SoapRpcMethod(), WebMethod]
public void WriteCaseInfo(CaseInformation caseInfo)
{
...
...
}
Android客戶端代碼：
父類被當成復參數：
public class CaseInformation extends IABaseKSoap2Serializable
{
public String Name;
public int Id;
public Vector<MultiPartDataElement> SiteListItems = new Vector<MultiPartDataElement>();
@Override
public Object getProperty(int arg0)
{
switch(arg0)
{
case 0:
return Name;
case 1:
return Id;
case 2:
return SiteListItems;
}
return null;
}
@Override
public int getPropertyCount()
{
return 3;
}
@Override
public void getPropertyInfo(int index, Hashtable arg1, PropertyInfo info)
{
switch(index)
{
case 0:
info.type = PropertyInfo.STRING_CLASS;
info.name = "Name";
break;
case 1:
info.type = PropertyInfo.INTEGER_CLASS;
info.name = "Id";
break;
case 2:
info.type = new Vector<MultiPartDataElement>().getClass();
info.name = "SiteListItems";
break;
default:break;
}
}
@Override
public void setProperty(int index, Object value)
{
switch(index)
{
case 0:
Name = value.toString();
break;
case 1:
Id = Integer.parseInt(value.toString());
break;
case 2:
SiteListItems = (Vector<MultiPartDataElement>)value;
break;
default:
break;
}
}
}
注意：如果我從客戶端代碼和Web服務中刪除SiteListItems屬性，則一切正常。
在陣列中使用的上述對象物的內部複雜的類：
public class MultiPartDataElement extends IABaseKSoap2Serializable
{
public int Id;
public String Name;
// default constructor
public MultiPartDataElement()
{
}
// overloaded constructor
public MultiPartDataElement(int id, String name)
{
Id = id;
Name = name;
}
@Override
public Object getProperty(int arg0)
{
switch(arg0)
{
case 0:
return Id;
case 1:
return Name;
}
return null;
}
@Override
public int getPropertyCount()
{
return 2;
}
@Override
public void getPropertyInfo(int index, Hashtable arg1, PropertyInfo info)
{
switch(index)
{
case 0:
info.type = PropertyInfo.INTEGER_CLASS;
info.name = "Id";
break;
case 1:
info.type = PropertyInfo.STRING_CLASS;
info.name = "Name";
break;
default:break;
}
}
@Override
public void setProperty(int index, Object value)
{
switch(index)
{
case 0:
Id = Integer.parseInt(value.toString());
break;
case 1:
Name = value.toString();
break;
default:
break;
}
}
}
代碼發送對象作爲參數到.NET Web服務：
public static boolean WriteCaseInfo()
{
boolean status = false;
CaseInformation caseInfo = new CaseInformation();
caseInfo.Id = 2725;
caseInfo.Name = "Craig M. Buck";
caseInfo.SiteListItems = new Vector<MultiPartDataElement>();
caseInfo.SiteListItems.add(new MultiPartDataElement(1, "CMB1"));
caseInfo.SiteListItems.add(new MultiPartDataElement(2, "CMB2"));
String methodName = "WriteCaseInfo";
SoapObject request = new SoapObject(NAMESPACE, methodName);
request.addProperty("caseInfo", caseInfo);
SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(SoapEnvelope.VER11);
envelope.bodyOut = request;
envelope.dotNet = false;
envelope.encodingStyle = SoapSerializationEnvelope.XSD;
envelope.addMapping(IABaseKSoap2Serializable.NAMESPACE, "MultiPartDataElement", new MultiPartDataElement().getClass());
envelope.addMapping(IABaseKSoap2Serializable.NAMESPACE, "CaseInformation", new CaseInformation().getClass());
HttpTransportSE transport = new HttpTransportSE(WebAPIURL + CaseServicesURL);
transport.debug = true;
transport.setXmlVersionTag("<?xml version=\"1.0\" encoding=\"utf-8\"?>");
try
{
List<HeaderProperty> headers = BuildHeader();
transport.call(NAMESPACE + methodName, envelope, headers);
String requestDump = transport.requestDump;
String soapDump = transport.responseDump;
SoapObject response = (SoapObject) envelope.bodyIn;
if(response != null)
status = new Boolean(response.getProperty(0).toString());
}
catch(Exception e)
{
status = false;
}
return status;
}
從KSOAP請求轉儲：
<?xml version="1.0" encoding="utf-8"?><v:Envelope xmlns:i="http://www.w3.org/2001/XMLSchema-instance" xmlns:d="http://www.w3.org/2001/XMLSchema" xmlns:c="http://schemas.xmlsoap.org/soap/encoding/" xmlns:v="http://schemas.xmlsoap.org/soap/envelope/"><v:Header /><v:Body><n0:WriteCaseInfo id="o0" c:root="1" xmlns:n0="http://www.medical.draeger.com/webservices/"><caseInfo i:type="n1:CaseInformation" xmlns:n1="http://www.medical.draeger.com/webservices/encodedTypes"><Name i:type="d:string">Craig M. Buck</Name><Id i:type="d:int">2725</Id><SiteListItems i:type="c:Array" c:arrayType="d:anyType[2]"><item i:type="n1:MultiPartDataElement"><Id i:type="d:int">1</Id><Name i:type="d:string">CMB1</Name></item><item i:type="n1:MultiPartDataElement"><Id i:type="d:int">2</Id><Name i:type="d:string">CMB2</Name></item></SiteListItems></caseInfo></n0:WriteCaseInfo></v:Body></v:Envelope>
注：我認爲這個問題是，是，數組被定義爲「anyTyp」，而不是MultiPartDataElement - > ...問題是我究竟錯在這裏幹什麼？
響應轉儲從KSOAP（呼叫後）：
的SoapException：服務器無法讀取請求。 --- > System.InvalidOperationException：XML文檔（1，828）中存在錯誤。 --- > System.InvalidCastException：無法將類型System.Object []的對象分配給類型爲Draeger.IT.Platform.Web.WebServices.MultiPartDataElement []的對象