我的Web服务器上有一个传统的Xml Web服务。它有一个服务调用主服务。类的概述如下。
[WebService(Namespace = "http://tempuri.org/")]
[WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
[System.ComponentModel.ToolboxItem(false)]
// [System.Web.Script.Services.ScriptService]
public class MainService : System.Web.Services.WebService
{
private byte[] symmetricKey;
private byte[] symmetricIv;
public byte[] SymmetricKey
{
get { return symmetricKey; }
set { symmetricKey = value; }
}
public byte[] SymmetricIv
{
get { return symmetricIv; }
set { symmetricIv = value; }
}
//Constructor
public MainService()
{
this.GetDatabaseInstance();
}
//Some Web Methods Heare to create the Symmetric Key
}
在我的客户端,我有一个方法,我有以下措辞
MainService mainService=new MainsService();
//Calling to Some web method to create symmetric keys and assign those properties
//Now trying to access those properties
var key=mainService.SymmetricKey;
当我访问它时,变量“key”获取空值。但我调试了Web服务类。私有变量正在获取值。为什么客户端代码上没有值?可能属性是设置引用而没有设置值?因为我可以通过Web方法返回OUT变量来访问变量值?任何人都可以解释一下答案吗?
以下方法是创建密钥的网络方法
[WebMethod]
//create a symmetric key and encript it using clients public key and return values
public bool CreateKeys(byte[] exponent, byte[] modulus)
{
try
{
//Create a new instance of the RSACryptoServiceProvider class.
var rsaCryptoServiceProvider = new RSACryptoServiceProvider();
//Create a new instance of the RSAParameters structure.
RSAParameters rsaKeyInfo = new RSAParameters();
//Set RSAKeyInfo to the public key values.
rsaKeyInfo.Modulus = modulus;
rsaKeyInfo.Exponent = exponent;
//Import key parameters into RSA.
rsaCryptoServiceProvider.ImportParameters(rsaKeyInfo);
//Create a new instance of the RijndaelManaged class.
var rijndaelManaged = new RijndaelManaged();
rijndaelManaged.GenerateKey();
rijndaelManaged.GenerateIV();
//save the symmetric key and IV
SymmetricKey = rijndaelManaged.Key;
SymmetricIv = rijndaelManaged.IV;
//Encrypt the symmetric key and IV.
encryptedSymmetricKey = rsaCryptoServiceProvider.Encrypt(rijndaelManaged.Key, false);
encryptedSymmetricIv = rsaCryptoServiceProvider.Encrypt(rijndaelManaged.IV, false);
return true;
}
catch (Exception)
{
throw;
}
}
答案 0 :(得分:1)
在您使用var key=mainService.symmetricKey;
但symmetricKey是私有byte[]
,无法在其连续类型之外访问。所以你必须像这样使用public property SymmetricKey
var key=mainService.SymmetricKey;
更新:
我怀疑导致这个问题的路线必须是这个
SymmetricKey = rijndaelManaged.Key;
同样,CreateKeys方法中的catch块通过throw来补充异常;