我转录了这个vb 代码,它对我有用
添加服务引用并将其命名为 Amazon
http://webservices.amazon.com/AWSECommerceService/AWSECommerceService.wsdl
进入您的项目所在的文件夹,打开服务引用文件夹并打开 Reference.cs,然后将所有出现的 [][] 替换为 [],然后打开 AWSECommerceService.wsdl 并找到
<xs:element minOccurs="0" maxOccurs="unbounded" name="ImageSets">
并替换为
<xs:element minOccurs="0" maxOccurs="1" name="ImageSets">
添加以下内容,您需要手动引用一些dll
using System.Security.Cryptography;
using System.ServiceModel;
using System.ServiceModel.Channels;
using System.ServiceModel.Dispatcher;
using System.ServiceModel.Description;
using System.Text.RegularExpressions;
using System.Xml;
using System.IO;
using System.Runtime.Serialization;
using AmazonApiTest.Amazon; //instead of AmazonApiTest use your project name
首先是各种接口实现
public class AmazonSigningMessageInspector : IClientMessageInspector
{
private string accessKeyId = "";
private string secretKey = "";
public AmazonSigningMessageInspector(string accessKeyId, string secretKey)
{
this.accessKeyId = accessKeyId;
this.secretKey = secretKey;
}
public Object BeforeSendRequest(ref System.ServiceModel.Channels.Message request, IClientChannel channel)
{
string operation = Regex.Match(request.Headers.Action, "[^/]+$").ToString();
DateTime now = DateTime.UtcNow;
String timestamp = now.ToString("yyyy-MM-ddTHH:mm:ssZ");
String signMe = operation + timestamp;
Byte[] bytesToSign = Encoding.UTF8.GetBytes(signMe);
Byte[] secretKeyBytes = Encoding.UTF8.GetBytes(secretKey);
HMAC hmacSha256 = new HMACSHA256(secretKeyBytes);
Byte[] hashBytes = hmacSha256.ComputeHash(bytesToSign);
String signature = Convert.ToBase64String(hashBytes);
request.Headers.Add(new AmazonHeader("AWSAccessKeyId", accessKeyId));
request.Headers.Add(new AmazonHeader("Timestamp", timestamp));
request.Headers.Add(new AmazonHeader("Signature", signature));
return null;
}
void IClientMessageInspector.AfterReceiveReply(ref System.ServiceModel.Channels.Message Message, Object correlationState)
{
}
}
public class AmazonSigningEndpointBehavior : IEndpointBehavior
{
private string accessKeyId = "";
private string secretKey = "";
public AmazonSigningEndpointBehavior(string accessKeyId, string secretKey)
{
this.accessKeyId = accessKeyId;
this.secretKey = secretKey;
}
public void ApplyClientBehavior(ServiceEndpoint serviceEndpoint, ClientRuntime clientRuntime)
{
clientRuntime.ClientMessageInspectors.Add(new AmazonSigningMessageInspector(accessKeyId, secretKey));
}
public void ApplyDispatchBehavior(ServiceEndpoint serviceEndpoint, EndpointDispatcher endpointDispatched)
{
}
public void Validate(ServiceEndpoint serviceEndpoint)
{
}
public void AddBindingParameters(ServiceEndpoint serviceEndpoint, BindingParameterCollection bindingParemeters)
{
}
}
public class AmazonHeader : MessageHeader
{
private string m_name;
private string value;
public AmazonHeader(string name, string value)
{
this.m_name = name;
this.value = value;
}
public override string Name
{
get { return m_name; }
}
public override string Namespace
{
get { return "http://security.amazonaws.com/doc/2007-01-01/"; }
}
protected override void OnWriteHeaderContents(System.Xml.XmlDictionaryWriter writer, MessageVersion messageVersion)
{
writer.WriteString(value);
}
}
现在您以这种方式使用生成的代码
ItemSearch search = new ItemSearch();
search.AssociateTag = "YOUR ASSOCIATE TAG";
search.AWSAccessKeyId = "YOUR AWS ACCESS KEY ID";
ItemSearchRequest req = new ItemSearchRequest();
req.ResponseGroup = new string[] { "ItemAttributes" };
req.SearchIndex = "Books";
req.Author = "Lansdale";
req.Availability = ItemSearchRequestAvailability.Available;
search.Request = new ItemSearchRequest[]{req};
Amazon.AWSECommerceServicePortTypeClient amzwc = new Amazon.AWSECommerceServicePortTypeClient();
amzwc.ChannelFactory.Endpoint.EndpointBehaviors.Add(new AmazonSigningEndpointBehavior("ACCESS KEY", "SECRET KEY"));
ItemSearchResponse resp = amzwc.ItemSearch(search);
foreach (Item item in resp.Items[0].Item)
Console.WriteLine(item.ItemAttributes.Author[0] + " - " + item.ItemAttributes.Title);