Question

我创建了一个wcf服务，但是我遇到了一些错误但无法解决。在IService1.cs中，我有以下代码。

[OperationContract]
List<RecommendPlace> getSearchCoords(string search);

[DataMember]
public string search
{
    get { return strValue1; }
    set { strValue1 = value; }
}

public List<RecommendPlace> getSearchCoords(string search)
{
    HttpWebRequest myRequest = (HttpWebRequest)WebRequest.Create("http://www.onemap.sg/API/services.svc/basicSearch?token=qo/s2TnSUmfLz+32CvLC4RMVkzEFYjxqyti1KhByvEacEdMWBpCuSSQ+IFRT84QjGPBCuz/cBom8PfSm3GjEsGc8PkdEEOEr&searchVal=" + search + "&returnGeom=1");
    myRequest.Method = "GET";
    WebResponse myResponse = myRequest.GetResponse();
    StreamReader sr = new StreamReader(myResponse.GetResponseStream(), System.Text.Encoding.UTF8);
    string result = sr.ReadToEnd();
    sr.Close();
    myResponse.Close();
    string coords;
    bool check = true;
    JObject doc = JObject.Parse(@result);

    using (JsonTextReader jsonReader = new JsonTextReader(new StringReader(result)))
    {
        while (jsonReader.Read())
        {
            if ((string)jsonReader.Value == "ErrorMessage")
            {
                check = false;
            }
        }
    }
    if (check)
    {
        coords = result;
    }
    else
    {
        coords = "error";
    }
    return coords;
}

Service1.svc.cs中的结果是：

public List<RecommendPlace> getSearchPlace(string search)
{
    RecommendPlaceMethods rp = new RecommendPlaceMethods();
    return rp.getSearchCoords(search);
}

似乎无法获得坐标。帮助！

Answer 1

错误错误1 'WcfService1.Service1' does not implement interface member 'WcfService1.IService1.getSearchCoords(string)'准确地告诉您问题所在。您的班级Service1未实施getSearchCoords(string)。

在您发布的Service1.svc.cs代码中

public List<RecommendPlace> getSearchPlace(string search)

但在IService1.cs你有：

[OperationContract]
List<RecommendPlace> getSearchCoords(string search);

getSearchPlace与getSearchCoords不同。

另外，为什么界面中有[DataMember]（IService1）和方法实现？您的界面中应该没有的实现，只是定义。实现接口的类负责方法和/或属性中的逻辑。

看起来应该是这样的：

IService1.cs

namespace WcfService1
{

    [ServiceContract]
    public interface IService1
    {

        [OperationContract]
        List<RecommendPlace> getSearchCoords(string search);
    }
}

Service1.svc.cs

namespace WcfService1
{

    public class Service1 : IService1
    {

        public List<RecommendPlace> getSearchCoords(string search)
        {

            HttpWebRequest myRequest = (HttpWebRequest)WebRequest.Create("http://www.onemap.sg/API/services.svc/basicSearch?token=qo/s2TnSUmfLz+32CvLC4RMVkzEFYjxqyti1KhByvEacEdMWBpCuSSQ+IFRT84QjGPBCuz/cBom8PfSm3GjEsGc8PkdEEOEr&searchVal=" + search + "&returnGeom=1");
            myRequest.Method = "GET";
            WebResponse myResponse = myRequest.GetResponse();
            StreamReader sr = new StreamReader(myResponse.GetResponseStream(), System.Text.Encoding.UTF8);
            string result = sr.ReadToEnd();
            sr.Close();
            myResponse.Close();
            string coords;
            bool check = true;
            JObject doc = JObject.Parse(@result);

            using (JsonTextReader jsonReader = new JsonTextReader(new StringReader(result)))
            {
                while (jsonReader.Read())
                {
                    if ((string)jsonReader.Value == "ErrorMessage")
                    {
                        check = false;
                    }
                }
            }
            if (check)
            {
                coords = result;
            }
            else
            {
                coords = "error";
            }
            return coords;
        }
    }
}

WCF服务中的代码错误

1 个答案: