Exhange2007 专题（二）通过Web service对Exhange进行二次开发

Exchange2007提供了EWS Managed API和Web Service 两种形式的开发方式。这里主要讲述Web Service形式的开发方式。

Web Service目前还不支持的包括：

1.文件夹关联信息消息；

2.通过代理访问；

3.支持公共文件夹；

4.管理员级别的函数支持（Exchange管理功能）

5.文件夹访问控制；

6.委托管理；

 

客户端与EWS通信图

 

 

在VS2010中添加Exchange 2007 Web Service

1.在项目中右击Service References -->点击Add Service References-->点击Advanced-->点击Add Web Reference

2.在URL中输入引用地址：https://domain/EWS/exchange.asmx

3.Add Reference

4.在代码中using Namespace.WebServiceName

 

下面的例子通过编程获取收件箱中文件夹的ID：

static void Main(string[] args)

{



  // 创建Web Service服务 绑定

  //

  ExchangeServiceBinding binding = new ExchangeServiceBinding();

  binding.Url = @"https://yourserver/ews/exchange.asmx";

  binding.Credentials = new NetworkCredential("username", "password", "domain");



  Dictionary<DistinguishedFolderIdNameType, FolderIdType> mapping;



  // 通过绑定的用户名映射对应的收件箱中文件夹的ID

  //

  mapping = GetAllDistinguishedFolderIds(binding);

  Console.WriteLine("The Id of the inbox is: \r\n" +

               mapping[DistinguishedFolderIdNameType.inbox].Id);

  Console.WriteLine();

  Console.WriteLine("The Id of sentitems is: \r\n" +

               mapping[DistinguishedFolderIdNameType.sentitems].Id);

}

 

创建 distinguished的文件夹名映射到文件夹的ID

GetAllDistinguishedFolderIds方法

public static Dictionary<DistinguishedFolderIdNameType, FolderIdType>

                 GetAllDistinguishedFolderIds(ExchangeServiceBinding binding)

{

  // 创建请求  //

  GetFolderType getFolderRequest = new GetFolderType();

  getFolderRequest.FolderIds = GetAllDistinguishedFolderIdsForRequest();

  getFolderRequest.FolderShape = new FolderResponseShapeType();





  getFolderRequest.FolderShape.BaseShape = DefaultShapeNamesType.IdOnly;



  // 响应  //

  GetFolderResponseType response = binding.GetFolder(getFolderRequest);

  ResponseMessageType[] responseMessages =

                        response.ResponseMessages.Items;



  Dictionary<DistinguishedFolderIdNameType, FolderIdType> result =

               new Dictionary<DistinguishedFolderIdNameType, FolderIdType>();



  Array enumValues =

               Enum.GetValues(typeof(DistinguishedFolderIdNameType));



  // 遍历每一个消息

  for (int folderIndex = 0;

       folderIndex < responseMessages.Length;

       folderIndex++)

  {

    FolderInfoResponseMessageType folderInfoMessage =

        responseMessages[folderIndex] as FolderInfoResponseMessageType;

    FolderIdType folderId = null;

    if (folderInfoMessage.ResponseClass == ResponseClassType.Success)

    {

      // 获取ID

      folderId = folderInfoMessage.Folders[0].FolderId;

    }



    result.Add(

         (DistinguishedFolderIdNameType)enumValues.GetValue(folderIndex),

         folderId);

  }

  return result;

}

 

检索所有的文件夹

 

代码

   
     

    
      
    
      public
    
       
    
      static
    
       BaseFolderIdType[] GetAllDistinguishedFolderIdsForRequest()
{
 Array enumValues 
    
      =
    
      
 Enum.GetValues(
    
      typeof
    
      (DistinguishedFolderIdNameType));

 BaseFolderIdType[] result 
    
      =
    
       
    
      new
    
       BaseFolderIdType[enumValues.Length];
 
    
      for
    
       (
    
      int
    
       folderIndex 
    
      =
    
       
    
      0
    
      ; folderIndex
    
      <
    
      enumValues.Length; folderIndex
    
      ++
    
      )
 {
 DistinguishedFolderIdType id 
    
      =
    
       
    
      new
    
       DistinguishedFolderIdType();
 id.Id 
    
      =
    
       (DistinguishedFolderIdNameType)
 enumValues.GetValue(folderIndex);
 result[folderIndex] 
    
      =
    
       id;
 }

 
    
      return
    
       result;
}
   
     

 

 

 

输出结果：

 

上述事例讲述了如何通过引用Exchange Web Serivce，获取Exchange中的一些信息，下节我们将围绕Exchange编程开发这一主题进行讲述。