WebService中传2进制文件(ASP.NET C#实战例子)-优快云博客

本文链接：https://blog.youkuaiyun.com/hnwanghb/article/details/323882

本文主要展示了使用WebService获取宾馆酒店经理资格证书信息的关键代码。定义了相关数据结构，包括嵌套结构，实现了获取资格证书信息及照片的功能，还涉及Soap Header的加密/解密，最后给出非Dotnet程序调用的参考URL。

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实战的代码太多了，我只帖关键部分，并且，注释一下，主要是为了自己以后备忘，注意红字部分！实战应用需要对Soap Header进行加密/解密，

加密/解密文章参考：http://blog.youkuaiyun.com/hnwanghb/archive/2005/03/19/323869.aspx

首先定义一个数据结构：

里面还嵌套着一个struRemoteFile 结构！

/// <summary>
/// 宾馆酒店经理资格证书的数据结构
/// 包含2进制图片信息
/// </summary>
public struct structHotelCertified
{
  public string ID;                  //记录序列号/
  public string Certified_ID;        //资格证书号码/
  public string Name;                //姓名/
  public string Sex;                 //性别/
  public string Education_ID;        //学历/
  public string Identity_Card;       //身份证/
  public string Unit_Name;           //单位名称/
  public string Obtain_Year;         //获证年度/
  public string Establish_Time;      //最后修改时间/

public struRemoteFile rmtPicFile; //照片 (注意：2进制文件的结构)
}

/// <summary>
/// 传送2进制文件的数据结构
/// string FileName;         //文件名
/// byte[] Contents;         //文件内容
/// DateTime CreationTime;   //文件创建时间
/// DateTime LastAccessTime; //文件最后访问时间
/// DateTime LastWriteTime; //文件最后修改时间
/// </summary>
public struct struRemoteFile
{
  public string FileName;         //文件名
  public byte[] Contents;         //文件内容
  public DateTime CreationTime;   //文件创建时间
  public DateTime LastAccessTime; //文件最后访问时间
  public DateTime LastWriteTime; //文件最后修改时间
}

/// <summary>
  /// 功能描述：获取旅游从业人员的资格证书信息[宾馆酒店经理]
  /// 参数说明：lastID—客户端已经更新的最新ID号，当前操作需要获取ID号大于lastID的记录
  /// 参数说明：number—获取数据的记录数量[Web传输中数据过大会产生异常，因此需要限制一次更新的数据数量]
  /// </summary>
  [WebMethod(Description="获取宾馆酒店经理资格证书的信息[包括图片文件]")]
  [SoapHeader("AuthenHeader",Direction=SoapHeaderDirection.In,Required=true)] //身份验证代码
  public structHotelCertified[] WebGetHotelCertified(int lastID,int number)
  {
   try
   {
    //数据输出对象
    THRDataExport objDataExport=new THRDataExport(objHRLogin.NewConnection());

    structHotelCertified[] pHotelCertified;

    //如果验证通过，获取宾馆酒店经理资料
    if(!bAuthenUser)
    {
     if(!AuthenHeader.ValidUser(AuthenHeader.Username,AuthenHeader.Password,objHRLogin.DBConnection))
     {
      return null;
     }
    }

pHotelCertified=objDataExport.GetHotelCertifiedInfo(lastID,strHotelPicPath,number) ; //把包含2 进制的结构对象返回的调用WebService的程序

//代码注释：objDataExport是一类THRDataExport的一个实例。

    return pHotelCertified;

   }
   catch(Exception e)
   {
    ErrorMessage=e.Message;
    return null;
   }
  }

类THRDataExport中的相关代码：

/// <summary>
  /// 功能描述：获取最新的宾馆酒店经理资格证书信息
  /// <param name="lastID">lastID—客户端已经更新的最新ID号，当前操作需要获取ID号大于lastID的记录</param>
  /// <param name="FilePath">图片存放路径</param>
  /// <param name="GetNum">获取记录数量</param>
  /// <returns>structHotelCertified结构数组</returns>
  public structHotelCertified[] GetHotelCertifiedInfo(int lastID,string FilePath,int GetNum)
  {
   try
   {
    string strSQL="";
    int iCount=0;

    DataSet ds=new DataSet();

    //=========================== 获取宾馆酒店经理资格证书的数据 Start ================================

    //将所有的服务器端的数据取出，导入dds,用dds Tables[0]中的差异记录对服务器端的数据全集进行过滤

    strSQL="Select * From T_HR_Hotel_Certified Where ID>"+lastID.ToString()+" And rownum<="+GetNum.ToString()+" Order By ID Asc";

OleDbDataAdapter dtHotel=new OleDbDataAdapter(strSQL,Cn);

    //填充记录集
    dtHotel.Fill(ds,"T_HR_Hotel_Certified");

    iCount=ds.Tables["T_HR_Hotel_Certified"].Rows.Count; //获取满足条件的宾馆酒店经理资格证书记录数量

    if(iCount>0)
    {
     structHotelCertified[] pHotelCert=new structHotelCertified[iCount];

     for(int m=0;m<ds.Tables["T_HR_Hotel_Certified"].Rows.Count;m++)
     {
      string strFileName;
      strFileName=FilePath+ds.Tables["T_HR_Hotel_Certified"].Rows[m]["Certified_ID"].ToString()+".jpg";

      pHotelCert[m].ID= ds.Tables["T_HR_Hotel_Certified"].Rows[m]["ID"].ToString();
      pHotelCert[m].Certified_ID= ds.Tables["T_HR_Hotel_Certified"].Rows[m]["Certified_ID"].ToString();
      pHotelCert[m].Education_ID= ds.Tables["T_HR_Hotel_Certified"].Rows[m]["Education_ID"].ToString();
      pHotelCert[m].Establish_Time= ds.Tables["T_HR_Hotel_Certified"].Rows[m]["Establish_Time"].ToString();
      pHotelCert[m].Identity_Card= ds.Tables["T_HR_Hotel_Certified"].Rows[m]["Identity_Card"].ToString();
      pHotelCert[m].Name=ds.Tables["T_HR_Hotel_Certified"].Rows[m]["Name"].ToString();
      pHotelCert[m].Obtain_Year=ds.Tables["T_HR_Hotel_Certified"].Rows[m]["Obtain_Year"].ToString();
      pHotelCert[m].Sex=ds.Tables["T_HR_Hotel_Certified"].Rows[m]["Sex"].ToString();
      pHotelCert[m].Unit_Name=ds.Tables["T_HR_Hotel_Certified"].Rows[m]["Unit_Name"].ToString();

      //--------------------------- 获取宾馆酒店经理照片信息 Start----------------------------
      pHotelCert[m].rmtPicFile=GetBinaryFile(@strFileName); //读取2进制文件
      //--------------------------- 获取宾馆酒店经理照片信息 End----------------------------

     }

     return pHotelCert;
    }
    else
    {
     return null;
    }
    //=========================== 获取宾馆酒店经理资格证书的数据 End ================================

   }
   catch(OleDbException oe)
   {
    ErrorMessage=oe.Message;
    return null;
   }
   finally
   {

   }
  }

/// <summary>
  /// 获取指定文件名称[全路径名称如： c:/temp/data/12367.jpg]的2进制文件
  /// </summary>
  /// <returns>2进制数组</returns>
  private struRemoteFile GetBinaryFile(string FileName)
  {
   struRemoteFile pRmtFile=new struRemoteFile();

   if(File.Exists(@FileName))
   {
    //读取文件的内容
    Stream fs=File.Open(FileName,FileMode.Open);

    pRmtFile.Contents=new byte[fs.Length];

    fs.Read(pRmtFile.Contents,0,(int)fs.Length);

    fs.Close();

    //获取文件的时间参数

    pRmtFile.CreationTime=File.GetCreationTime(FileName);
    pRmtFile.LastAccessTime=File.GetLastAccessTime(FileName);
    pRmtFile.LastWriteTime=File.GetLastWriteTime(FileName);

   }

   return pRmtFile;

  }

最后注意：如果是非Dotnet程序编码调用，参考以下的WebService的结构信息。参考URL：http://www.tttsss.com/webservice/THRDataService.asmx?op=WebGetHotelCertified

DataExchange

Click here for a complete list of operations.

WebGetHotelCertified

获取宾馆酒店经理资格证书的信息[包括图片文件]

Test

The test form is only available for requests from the local machine.

SOAP

The following is a sample SOAP request and response. The placeholders shown need to be replaced with actual values.

POST /webservice/THRDataService.asmx HTTP/1.1
Host: www.tttsss.com
Content-Type: text/xml; charset=utf-8
Content-Length: length
SOAPAction: "http://www.tttsss.com/webservice/WebGetHotelCertified"

<?xml version="1.0" encoding="utf-8"?>
<soap:Envelope xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/">
  <soap:Header>
    <Authentication xmlns="http://www.tttsss.com/webservice/">
      <Username>base64Binary</Username>
      <Password>base64Binary</Password>
      <Key>base64Binary</Key>
      <IV>base64Binary</IV>
      <curAlgorithm>Des or Rc2 or Rijndael or TripleDes</curAlgorithm>
    </Authentication>
  </soap:Header>
  <soap:Body>
    <WebGetHotelCertified xmlns="http://www.tttsss.com/webservice/">
      <lastID>int</lastID>
      <number>int</number>
    </WebGetHotelCertified>
  </soap:Body>
</soap:Envelope>

HTTP/1.1 200 OK
Content-Type: text/xml; charset=utf-8
Content-Length: length

<?xml version="1.0" encoding="utf-8"?>
<soap:Envelope xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/">
  <soap:Body>
    <WebGetHotelCertifiedResponse xmlns="http://www.tttsss.com/webservice/">
      <WebGetHotelCertifiedResult>
        <structHotelCertified>
          <ID>string</ID>
          <Certified_ID>string</Certified_ID>
          <Name>string</Name>
          <Sex>string</Sex>
          <Education_ID>string</Education_ID>
          <Identity_Card>string</Identity_Card>
          <Unit_Name>string</Unit_Name>
          <Obtain_Year>string</Obtain_Year>
          <Establish_Time>string</Establish_Time>
          <rmtPicFile>
            <FileName>string</FileName>
            <Contents>base64Binary</Contents>
            <CreationTime>dateTime</CreationTime>
            <LastAccessTime>dateTime</LastAccessTime>
            <LastWriteTime>dateTime</LastWriteTime>
          </rmtPicFile>
        </structHotelCertified>
        <structHotelCertified>
          <ID>string</ID>
          <Certified_ID>string</Certified_ID>
          <Name>string</Name>
          <Sex>string</Sex>
          <Education_ID>string</Education_ID>
          <Identity_Card>string</Identity_Card>
          <Unit_Name>string</Unit_Name>
          <Obtain_Year>string</Obtain_Year>
          <Establish_Time>string</Establish_Time>
          <rmtPicFile>
            <FileName>string</FileName>
            <Contents>base64Binary</Contents>
            <CreationTime>dateTime</CreationTime>
            <LastAccessTime>dateTime</LastAccessTime>
            <LastWriteTime>dateTime</LastWriteTime>
          </rmtPicFile>
        </structHotelCertified>
      </WebGetHotelCertifiedResult>
    </WebGetHotelCertifiedResponse>
  </soap:Body>
</soap:Envelope>