将二进制文件转换为zip文件 [英] convert binary to zip file

问题描述

我的sql数据库中有一个字段，该字段保存了二进制数据，
此二进制数据是压缩文件.
如何读取此数据并将其转换为zip文件?

Hi,
i have a field in my sql database that is saved a binary data,
this binary data is a zipped file.
how to read this data and convert it to zip file?

推荐答案

只需将数据检索为二进制文件，然后使用zip). href ="http://msdn.microsoft.com/en-us/library/system.io.binaryreader.aspx"> BinaryWriter [

Just retrieve the data as binary and then save it (with zip extension) using a BinaryWriter[^].

希望您使用ADO.net

Hope u r using ADO.net

 // Initalize connection before this
SqlCommand cmd=new SqlCommand("select zipdat from table",con); //con for sqlconnection

//zipdat is column where you stored bytes of zip file

con.Open();



byte [] zipbts=(byte[])cmd.ExecuteScalar();


File.WriteAllBytes("C\\myfile.zip",zipbts);

希望这会有所帮助

祝你好运..........

Hope this helps

best of luck..........

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