如何在WCF代理服务(B)中获取并传递用户名密码至WCF服务(A)

AI 小北

2026-7-29

WCF代理服务(B)获取客户端凭证并传递至服务(A)的实现方案

现有采用自定义用户验证的WCF服务(A)，需开发作为客户端与服务(A)之间代理的WCF服务(B)。核心问题是：如何在服务(B)中获取当前客户端传入的ClientCredentials.UserName.UserName与ClientCredentials.UserName.Password，并将其传递至服务(A)？

服务(B)的初始示例代码如下：

public class WcfServiceB: IWcfServiceB
{
    private WcfServiceA _serviceA;

    public WcfServiceB()
    {
        _serviceA = new WcfServiceA();
        _serviceA.ClientCredentials.UserName.UserName = userName; //how to get current userName of WcfServiceB??
        _serviceA.ClientCredentials.UserName.Password = password; //how to get current password of WcfServiceB??
    }

    public string TestMethod()
    {
        return _serviceA.TestMethod();
    }
}

已实现的方案

通过自定义验证类暂存凭证，再在服务(B)中读取传递：

创建带静态字段的自定义用户验证类，在验证环节保存客户端传入的凭证：

public class CustomUserCredentials : UserNamePasswordValidator
{
    public static string UserName;
    public static string Password;

    public override void Validate(string userName, string password)
    {
        UserName = userName;
        Password = password;
    }
}

在服务(B)中通过该静态类获取凭证，设置到服务(A)的客户端凭证中：

public class WcfServiceB: IWcfServiceB
{
    private WcfServiceA _serviceA;

    public WcfServiceB()
    {
        _serviceA = new WcfServiceA();
        _serviceA.ClientCredentials.UserName.UserName = CustomUserCredentials.UserName;
        _serviceA.ClientCredentials.UserName.Password = CustomUserCredentials.Password;
    }

    public string TestMethod()
    {
        return _serviceA.TestMethod();
    }
}