将图像/二进制数据转换为可读 [英] convert image/binary data to readable

问题描述

我无法通过使用以下代码将2种类型的数据转换为可读记录。这些数据通过使用LEI从lotus note迁移到sql server。

任何人都知道怎么做？

Hi,

I failed to convert following 2 type of data into readable record by using following code. This data migrated from lotus note to sql server by using LEI.
Anyone know how?

in image data type:
0x82FF520001000000000000000000AF05002DAF0500000000000000000000000000000000000000000000000000000000000000000000000000000000000086010000000054040F0000000F000000000000008304010085FF08000500000881028304010085FF3B000500000820202020202020202020202020202020202020

in binary data type:
0x82FF520002000000000001000000AF052337AF0500000000000000000000000000000000000000000000000000000000000000000000000000000000000086010000000054040F0000000F000000000000008304020085FF08000600000900000000000000000000000000000000000000000000000000000000000000000000

<无线电通信/>

string sqlText = "..."
 SqlConnection connection = new SqlConnection(ConfigurationManager.ConnectionStrings["connectionString"].ToString());
        SqlCommand command = new SqlCommand(sqlText, connection);

        //open the database and get a datareader
        connection.Open();
        SqlDataReader dr = command.ExecuteReader();
        if ( dr.Read()) //yup we found our image
        {
const int CHUNK_SIZE = 2 * 1024;
       byte[] buffer = new byte[CHUNK_SIZE];
       long bytesRead;
       long fieldOffset = 0;
       using (var stream = new MemoryStream())
       {
           while ((bytesRead = dr.GetBytes(dr.GetOrdinal("checklist"), fieldOffset, buffer, 0, buffer.Length)) > 0)
           // while ((bytesRead = dr.GetBytes(dr.GetOrdinal("CCList"), fieldOffset, buffer, 0, buffer.Length)) > 0)
           {
               stream.Write(buffer, 0, (int)bytesRead);
               fieldOffset += bytesRead;
           }
           Response.BinaryWrite(stream.ToArray());


       }

推荐答案

我想将上述数据转换为可读文本。那些数据已存在于我的数据库中。

上面的代码不起作用。请帮忙！

I would like to convert the above data to readable text. Those data already in my database.
Above code did not work. Please help!

你到底想做什么？

我想你想把图像保存到数据库然后检索它？



导入：加载你的图像，然后将其转换为字节数组，然后你可以将它添加到你的数据库..

orm你可以转换字节数组是否为base64-string？

what exactly do you want to do?
I think you want to save a image to a database and then retrieve it?

import: load your image, then convert it to a byte-array and then you can add it into your db..
orm you can convert the byte array into a base64-string?

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