Question

我试图通过从服务器获取路径并使用vjslib.dll库来创建一个包含一些文件的zip文件夹

代码在ZipOutputStream outf = new ZipOutputStream(new FileOutputStream(outFilename));

处失败

我得到的错误 vjslib.dll中出现'System.TypeInitializationException'类型的第一次机会异常

using System;
    using System.Data;
    using Microsoft.SqlServer.Dts.Runtime;
    using System.Windows.Forms;
    using System.IO;
    using java.util.zip;
    using java.io;

    namespace s1.csproj
    {
        [Microsoft.SqlServer.Dts.Tasks.ScriptTask.SSISScriptTaskEntryPointAttribute]
        public partial class ScriptMain : Microsoft.SqlServer.Dts.Tasks.ScriptTask.VSTARTScriptObjectModelBase
        {


            enum ScriptResults
            {
                Success = Microsoft.SqlServer.Dts.Runtime.DTSExecResult.Success,
                Failure = Microsoft.SqlServer.Dts.Runtime.DTSExecResult.Failure
            };




            public void Main()
            {
                try
                {
                    ZipFiles();
                    Dts.TaskResult = (int)ScriptResults.Success;
                }
                catch
                {
                    Dts.TaskResult = (int)ScriptResults.Failure;
                }

            }

            public void ZipFiles()
            {
                string xlsFileName = Dts.Variables["User::ZipFileMask"].Value.ToString();
                string ZipFileName = Dts.Variables["User::ZipFileName"].Value.ToString();
                string ZipFilePath = Dts.Variables["User::ZipFilePath"].Value.ToString();

                //Delete the zip file
                if (System.IO.File.Exists(ZipFilePath + ZipFileName))
                    System.IO.File.Delete(ZipFilePath + ZipFileName);

                string FilePath = Dts.Variables["User::ZipFilePath"].Value.ToString() ;

                // These are the files to include in the ZIP file            
                string[] FileNames = Directory.GetFiles(FilePath, xlsFileName);

                // Create a buffer for reading the files
                sbyte[] buff = new sbyte[1024];

                try
                {
                    // Create the ZIP file
                    String outFilename = ZipFilePath + ZipFileName;
                    ZipOutputStream outf = new ZipOutputStream(new FileOutputStream(outFilename));


                    // Compress the files
                    for (int i = 0; i < FileNames.Length; i++)
                    {
                        string strsourcefile = FileNames[i];
                        FileInputStream inx = new FileInputStream(strsourcefile);
                        string filename = Path.GetFileName(FileNames[i]);
                        string strzipentry = filename;
                        ZipEntry ze = new ZipEntry(strzipentry);
                        outf.putNextEntry(ze);
                        sbyte[] buffer = new sbyte[1024];
                        int len;

                        while ((len = inx.read(buff)) > 0)
                        {
                            outf.write(buff, 0, len);
                        }

                        outf.closeEntry();
                        inx.close();

                    }
                    outf.close();
                }
                catch
                {
                    throw;
                }
            }


        }
    }

Answer 1

这是我尝试使用几种方法。一个使用GZipStream，另一个使用ZipArchive。这两个都在System.IO.Compression命名空间中。 ZipArchive需要引用System.IO.Compression.FileSystem程序集以获取其示例中所需的扩展方法。请参阅代码中的注释。

using System;
using System.IO;
using System.IO.Compression;

namespace SOTesting
{
    [Microsoft.SqlServer.Dts.Tasks.ScriptTask.SSISScriptTaskEntryPointAttribute]
    public partial class ScriptMain : Microsoft.SqlServer.Dts.Tasks.ScriptTask.VSTARTScriptObjectModelBase
    {

        public void Main()
        {
            try
            {
                // I couldn't get the gz to open afterward 
                ZipFilesG(); // GZipStream attempt 

                //** !! Must add reference to System.IO.Compression.FileSystem for this to work
                ZipFilesZ(); // ZipArchive attempt; this worked well for me

                Dts.TaskResult = (int)ScriptResults.Success;
            }
            catch
            {
                Dts.TaskResult = (int)ScriptResults.Failure;
            }
        }

        enum ScriptResults
        {
            Success = Microsoft.SqlServer.Dts.Runtime.DTSExecResult.Success,
            Failure = Microsoft.SqlServer.Dts.Runtime.DTSExecResult.Failure
        };

        public void ZipFilesG()
        {
            // You may need to adjust these a bit
            string xlsFileName = "*.xlsx"; // Dts.Variables["User::ZipFileMask"].Value.ToString();
            string zipFileName = "SSIS.gz"; // Dts.Variables["User::ZipFileName"].Value.ToString();
            string zipFilePath = @"C:\TEMP\SSIS"; // Dts.Variables["User::ZipFilePath"].Value.ToString();
            string fullFilePath = zipFilePath + "\\" + zipFileName;

            MessageBox.Show($"fullFilePath: {fullFilePath}");

            //Delete the zip file
            if (File.Exists(fullFilePath)) File.Delete(fullFilePath);

            DirectoryInfo filePath = new DirectoryInfo(zipFilePath);

            try
            {
                FileStream compressedFileStream = new FileStream(fullFilePath, FileMode.Append);
                GZipStream compressionStream = new GZipStream(compressedFileStream, CompressionMode.Compress);
                foreach (FileInfo fileToCompress in filePath.GetFiles(xlsFileName))
                {
                    using (FileStream originalFileStream = fileToCompress.OpenRead())
                    {
                        originalFileStream.CopyTo(compressionStream);
                    }
                }
                compressionStream.Close();
                compressedFileStream.Close();
            }
            catch (Exception ex)
            {
                throw ex;
            }
        }

        public void ZipFilesZ()
        {
            // You may need to adjust these a bit
            string xlsFileName = "*.xlsx"; // Dts.Variables["User::ZipFileMask"].Value.ToString();
            string zipFileName = "SSIS.zip"; // Dts.Variables["User::ZipFileName"].Value.ToString();
            string zipFilePath = @"C:\TEMP\SSIS"; // Dts.Variables["User::ZipFilePath"].Value.ToString();
            string fullFilePath = zipFilePath + "\\" + zipFileName;

            //Delete the zip file
            if (File.Exists(fullFilePath)) File.Delete(fullFilePath);

            DirectoryInfo filePath = new DirectoryInfo(zipFilePath);

            try
            {
                foreach (FileInfo fileToCompress in filePath.GetFiles(xlsFileName))
                {
                    using (ZipArchive archive = ZipFile.Open(fullFilePath, ZipArchiveMode.Update))
                    {
                        archive.CreateEntryFromFile(fileToCompress.FullName, fileToCompress.Name);
                    }
                }
            }
            catch (Exception ex)
            {
                throw ex;
            }
        }
    }
}

祝你好运！

Answer 2

我不确定你为什么要包含一些java的引用但是确定...

查看https://dotnetzip.codeplex.com

Answer 3

您需要的只是here。正如其他人所提到的那样 - 你的方法似乎与Java不同！？

使用C＃创建Zip文件夹

3 个答案: