C#Asp.Net创建文本文件，将其压缩并保存到Blob，而无需将任何内容写入磁盘

这是一个复杂的问题，不管怎样对我来说：）

基本上，我想要实现的是生成一些文本，将这个文本文件压缩到两个目录中，然后将其上传到MySQL blob字段中——所有这些都不需要向磁盘写入任何内容。我对所有这些都比较陌生，所以非常感谢任何指点。这是我到目前为止所做的，它显然会崩溃和燃烧，但希望能让我更好地了解我想做什么。哦，我现在正在使用DotNetZip:）

***编辑-靠近***

我现在可以创建一个文本文件并将其压缩到内存中，问题是文本没有显示在文件中-即它是空白的，我现在将该文件放在两个目录中：）

修订守则如下

public void test3()
        {
            MemoryStream ms = new MemoryStream();
            StreamWriter sw = new StreamWriter(ms);

            sw.WriteLine("HELLO!");
            sw.WriteLine("I WANT TO SAVE THIS FILE AS A .TXT FILE WITHIN TWO FOLDERS");
            ms.Position = 0;

            // create the ZipEntry archive from the xml doc store in memory stream ms
            MemoryStream outputMS = new System.IO.MemoryStream();

            ZipOutputStream zipOutput = new ZipOutputStream(outputMS);
            ZipEntry ze = new ZipEntry(@"Directory1\Directory2\example.txt");
            zipOutput.PutNextEntry(ze);
            zipOutput.Write(ms.ToArray(), 0, Convert.ToInt32(ms.Length));
            zipOutput.Finish();
            zipOutput.Close();

            byte[] byteArrayOut = outputMS.ToArray();
            outputMS.Close();
            ms.Close();
            try
            {
                OdbcConnection rstServer = new OdbcConnection("DSN=CentralServer");
                Server.Open();
                OdbcCommand DbCommand = Server.CreateCommand();
                DbCommand.CommandText = "INSERT INTO blobtest(blobfield) VALUES(?)";
                OdbcParameter param = new OdbcParameter("@file", SqlDbType.Binary);
                param.Value = byteArrayOut;
                DbCommand.Parameters.Add(param);
                DbCommand.ExecuteNonQuery();
                Response.Write(byteArrayOut.ToString());


            }

            catch (Exception ex)
            {
                Response.Write(ex.ToString());
            }
        }

---

您可以使用开源c#压缩库SharpZipLib创建内存中的zip文件，如下所述：

---

现在您只需要将内存流转换为字节数组并将其保存在数据库中

基本上，这是我想要实现的全部编译，所以我想我会为任何需要类似东西的人把它放在一起——这是一段工作代码

public void diskLess()
        {
            MemoryStream ms = new MemoryStream();
            StreamWriter sw = new StreamWriter(ms);

            sw.WriteLine("HELLO!");
            sw.WriteLine("I WANT TO SAVE THIS FILE AS A .TXT FILE WITHIN TWO FOLDERS");
            sw.Flush(); //This is required or you get a blank text file :)
            ms.Position = 0;

            // create the ZipEntry archive from the txt file in memory stream ms
            MemoryStream outputMS = new System.IO.MemoryStream();

            ZipOutputStream zipOutput = new ZipOutputStream(outputMS);
            ZipEntry ze = new ZipEntry(@"dir1\dir2\whatever.txt");
            zipOutput.PutNextEntry(ze);
            zipOutput.Write(ms.ToArray(), 0, Convert.ToInt32(ms.Length));
            zipOutput.Finish();
            zipOutput.Close();
            byte[] byteArrayOut = outputMS.ToArray();
            outputMS.Close();

            ms.Close();
            try
            {
                OdbcConnection rstServer = new OdbcConnection("DSN=CentralServer");
                Server.Open();
                OdbcCommand DbCommand = Server.CreateCommand();
                DbCommand.CommandText = "INSERT INTO blobtest(blobfield) VALUES(?)";
                OdbcParameter param = new OdbcParameter("@file", SqlDbType.Binary);
                param.Value = byteArrayOut;
                DbCommand.Parameters.Add(param);
                DbCommand.ExecuteNonQuery();
                Response.Write(byteArrayOut.ToString());


            }

            catch (Exception ex)
            {
                Response.Write(ex.ToString());
            }

        }

---

哪个部分崩溃，如果有错误消息/堆栈跟踪呢？在此版本中，我无法访问zip.Save（ms2）上的封闭流-但我不确定我是否使用此方法在正确的路径上：（SubmissionReceiptListAttachmentMTOM在最新版本中似乎不存在。我跟踪了您的代码并在编辑中进行了必要的更改-知道文本文件为何为空吗？

// zip XElement xdoc and add to requests MTOM value
using (MemoryStream ms = new System.IO.MemoryStream())
{   
   xdoc.Save(ms);  
   ms.Position = 0;

   // create the ZipEntry archive from the xml doc store in memory stream ms
   using (MemoryStream outputMS = new System.IO.MemoryStream())
   {
      using (ZipOutputStream zipOutput = new ZipOutputStream(outputMS))
      {
          ZipEntry ze = new ZipEntry("example.xml");
          zipOutput.PutNextEntry(ze);
          zipOutput.Write(ms.ToArray(), 0, Convert.ToInt32(ms.Length));
          zipOutput.Finish();
          zipOutput.Close();

          // add the zip archive to the request
          SubmissionReceiptListAttachmentMTOM = new base64Binary();
          SubmissionReceiptListAttachmentMTOM.Value = outputMS.ToArray();
      }

      outputMS.Close();
   }

   ms.Close();
}

public void diskLess()
        {
            MemoryStream ms = new MemoryStream();
            StreamWriter sw = new StreamWriter(ms);

            sw.WriteLine("HELLO!");
            sw.WriteLine("I WANT TO SAVE THIS FILE AS A .TXT FILE WITHIN TWO FOLDERS");
            sw.Flush(); //This is required or you get a blank text file :)
            ms.Position = 0;

            // create the ZipEntry archive from the txt file in memory stream ms
            MemoryStream outputMS = new System.IO.MemoryStream();

            ZipOutputStream zipOutput = new ZipOutputStream(outputMS);
            ZipEntry ze = new ZipEntry(@"dir1\dir2\whatever.txt");
            zipOutput.PutNextEntry(ze);
            zipOutput.Write(ms.ToArray(), 0, Convert.ToInt32(ms.Length));
            zipOutput.Finish();
            zipOutput.Close();
            byte[] byteArrayOut = outputMS.ToArray();
            outputMS.Close();

            ms.Close();
            try
            {
                OdbcConnection rstServer = new OdbcConnection("DSN=CentralServer");
                Server.Open();
                OdbcCommand DbCommand = Server.CreateCommand();
                DbCommand.CommandText = "INSERT INTO blobtest(blobfield) VALUES(?)";
                OdbcParameter param = new OdbcParameter("@file", SqlDbType.Binary);
                param.Value = byteArrayOut;
                DbCommand.Parameters.Add(param);
                DbCommand.ExecuteNonQuery();
                Response.Write(byteArrayOut.ToString());


            }

            catch (Exception ex)
            {
                Response.Write(ex.ToString());
            }

        }