使用ServiceHost.AddServiceEndpoint添加自定义ProtoEndpointBehavior时，我得到以下异常：
System.ArgumentNullException：值不能为null。参数名称： System.Collections.Generic.Dictionary
2.FindEntry(TKey key) at System.Collections.Generic.Dictionary上的键2.ContainsKey（TKey键）at System.ServiceModel.ServiceHostBase.ImplementedContractsContractResolver.ResolveContract（字符串 contractName）at System.ServiceModel.ServiceHostBase.ServiceAndBehaviorsContractResolver.ResolveContract（字符串 contractName）at System.ServiceModel.Description.ConfigLoader.LookupContractForStandardEndpoint（字符串 contractName，String serviceName）at System.ServiceModel.Description.ConfigLoader.LookupContract（字符串 contractName，String serviceName）at System.ServiceModel.ServiceHostBase.AddServiceEndpoint（ServiceEndpoint 终点） My.Service.Business.ServiceHandler.StartService（输入serviceType， 字符串uri，SecureConnectionSettings secureConnectionSettings）in C：\我的\ Produkter \我的 Utveckling \ Solution \ My.Service.Business \ ServiceHandler.cs：第150行
这就是代码的样子：
ServiceHost serviceHost = null;
Console.WriteLine("Creating service " + serviceType.FullName);
serviceHost = new MyServiceHost(serviceType, new Uri(uri));
var endPointAddress = "";
HttpBindingBase binding = null;
if (secureConnectionSettings != null && secureConnectionSettings.Enabled)
{
Console.WriteLine("Setting certificates");
X509Store store = new X509Store(secureConnectionSettings.CertificateStore, secureConnectionSettings.CertificateLocation);
store.Open(OpenFlags.ReadOnly);
X509Certificate2Collection certs = store.Certificates.Find(X509FindType.FindByThumbprint, secureConnectionSettings.Thumbprint, true);
store.Close();
if (certs.Count > 0)
serviceHost.Credentials.ServiceCertificate.SetCertificate(secureConnectionSettings.CertificateLocation,
secureConnectionSettings.CertificateStore,
X509FindType.FindByThumbprint,
secureConnectionSettings.Thumbprint);
else
throw new Exception("Could not finde certificate with thumbprint " + secureConnectionSettings.Thumbprint);
endPointAddress = uri + "/BinaryHttpsProto";
binding = CreateNetHttpsBinding(secureConnectionSettings);
}
else
{
endPointAddress = uri + "/BinaryHttpProto";
binding = CreateNetHttpBinding();
}
var endpoint = new System.ServiceModel.Description.ServiceEndpoint(new System.ServiceModel.Description.ContractDescription(typeof(IMyClientService).FullName),
binding,
new EndpointAddress(endPointAddress));
endpoint.EndpointBehaviors.Add(new ProtoBuf.ServiceModel.ProtoEndpointBehavior());
serviceHost.AddServiceEndpoint(endpoint);
Console.WriteLine("Starting service...");
serviceHost.Open();
Console.WriteLine("Service started successfully (" + uri + ")");
return serviceHost;
我用它在配置文件中设置这个：
<endpointBehaviors>
<behavior name="protoEndpointBehavior">
<protobuf />
</behavior>
</endpointBehaviors>
现在我需要在代码中添加它。
有什么问题？
答案 0 :(得分：8)
它是known bug并且有解决方法。
获取ContractDescription的实例时，请使用静态方法ContractDescription.GetContract(Type)而不是直接的ContractDescription（）构造函数：
var endpoint = new System.ServiceModel.Description.ServiceEndpoint(System.ServiceModel.Description.ContractDescription.GetContract(typeof(IMyClientService)),
binding,
new EndpointAddress(endPointAddress));
我能够重现您的问题，这个解决方法对我有用。
答案 1 :(得分：1)
您看到异常的原因是因为import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.DataFormatter;
import org.apache.poi.ss.usermodel.Row;
import org.apache.poi.ss.usermodel.Workbook;
import org.apache.poi.xssf.usermodel.XSSFSheet;
import org.apache.poi.xssf.usermodel.XSSFTable;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import java.util.ArrayList;
import java.util.List;
public class ExcelReader {
public static String[][] readDataExcel(String TableName) {
String filePath = "src/test/resources/Testdata.xlsx";
try {
Workbook workbook = new XSSFWorkbook(filePath);
XSSFSheet sheet = (XSSFSheet) workbook.getSheet("UnitTest");
List<XSSFTable> tables = sheet.getTables();
for (XSSFTable table : tables) {
String name = table.getName();
if (! name.equals(TableName)) {
continue;
}
int rowCount = sheet.getLastRowNum() - sheet.getFirstRowNum();
System.out.println(rowCount);
int columnCount = - 1;
List<List<String>> data = new ArrayList<>();
for (int i = 1; i < rowCount + 1; i++) {
Row row = sheet.getRow(i);
int colNum = row.getLastCellNum();
if (columnCount == - 1) {
columnCount = colNum;
}
List<String> rowData = new ArrayList<>();
for (int j = 0; j < colNum; j++) {
Cell cell = row.getCell(j);
DataFormatter formatter = new DataFormatter();
String var_name = formatter.formatCellValue(cell);
if (var_name != null && ! var_name.trim().isEmpty()) {
rowData.add(var_name);
}
}
if (! rowData.isEmpty()) {
data.add(rowData);
}
}
workbook.close();
String[][] dataArray = new String[rowCount-1][columnCount];
int rowIndex = 0;
for (List<String> row : data) {
int colIndex = 0;
for (String rowData : row) {
dataArray[rowIndex][colIndex++] = rowData;
}
rowIndex++;
}
return dataArray;
}
System.err.println("Table name is incorrect");
return new String[][] {{}};
} catch (Exception e) {
e.printStackTrace();
return new String[][] {{}};
}
}
}
假设您使用配置文件。它试图检索＆amp;解决因为您没有使用配置文件而不存在的合同，绑定和地址。
ServiceEndpoint（见备注）
当端点的绑定和地址为时，使用此构造函数 在配置中提供。
create or retrieve a ContractDescription对象有多种方式：
ServiceEndpoint如果您真的坚持以编程方式创建var contractUsingName = new ContractDescription("IProtoBufService");
var contractUsingNameWithNameSpace = new ContractDescription("IProtoBufService", "http://www.tempuri.org");
var contractUsingContractType = ContractDescription.GetContract(typeof(IProtoBufService));
var contractUsingContractTypeAndObjectImp = ContractDescription.GetContract(typeof(IProtoBufService), ProtoBufService);
var contractUsingContractTypeAndObjectType = ContractDescription.GetContract(typeof(IProtoBufService), typeof(ProtoBufService));
，则需要定义以下某些内容：
或者您可以将此blog作为踢球者。
您是否尝试过CodeFuller的答案？他的回答可以让你的生活更轻松。我做了一个快速检查，然后就可以了。
ContractDescription很遗憾，我无法附加图片＆＃34; imgur＆＃34; 的错误，但它可以在我的网络浏览器上运行。虽然我还没有使用客户端应用程序进行测试，但我猜你已经接近解决方案。
提示：不要混用配置文件和代码，因为它很难维护。 ＆＃34;你可能知道＆＃34; 祝你好运：）