Question

我在Web服务中有以下类：

[Serializable]
public class WebServiceParam
{
    public string[] param;
}

在客户端应用程序中：

string[] reportFields = new string[] { "invoiceNo", "sale", "item", "size", "missingQty", "Country", "auto" };
param.ReportFields = reportFields;
serviceInstance.CreateReport(param);

但是，字符串数组成员是“null”

这是我的网络服务类：

[WebService(Description = "Service related to producing various report formats", Namespace = "http://www.apacsale.com/ReportingService")]
[WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
[System.ComponentModel.ToolboxItem(false)]
// To allow this Web Service to be called from script, using ASP.NET AJAX, uncomment the following line. 
// [System.Web.Script.Services.ScriptService]
public class ReportingService : System.Web.Services.WebService
{
    ReportingServiceImpl m_reporting;
    [WebMethod]
    public string CreateReport(ReportingParameters param)
    {
        if (param != null)
        {
            m_reporting = new ReportingServiceImpl(param);
            m_reporting.Create();
            return m_reporting.ReturnReport();
        }
        return null;
    }
}

Answer 1

我觉得与param变量有关的混淆;

WebServiceParam temp = new WebServiceParam();
string[] reportFields = new string[] { "invoiceNo", "sale", "item", "size", "missingQty", "Country", "auto" };
temp.param = reportFields;
serviceInstance.CreateReport(temp);

Answer 2

您需要使用[DataContract]属性标记该类，并且该数组应该是property而不是field。这就是WebServiceParam的外观：

[DataContract]
public class WebServiceParam
{
    [DataMember]
    public string[] Param {get; set;}
}

并且服务接口将是这样的：

[ServiceContract]
public interface IService
{
    [OperationContract]
    void CreateReport(WebServiceParam parameters);
}

现在您可以使用：

WebServiceParam wsParam = new WebServiceParam();
wsParam.Param = new string[] { "invoiceNo", "sale", "item", "size", "missingQty", "Country", "auto" };
serviceInstance.CreateReport(wsParam);

将具有字符串数组成员的类传递给Web服务

2 个答案: