Question

我在SSIS中使用Microsoft Visual C＃2012的脚本任务。

我想解压20160423.zip里面有一个测试文件夹，里面的test文件夹有插入，删除和更新文件夹，每个文件夹里都有.dat文件：

20160423.zip：

我想这样解压缩：

这是层次结构

的 20160423
- 测试
  - 插入
    - abc.dat
    - def.dat
  - 删除
    - abc.dat
    - def.dat
  - 更新
    - abc.dat
    - def.dat

脚本任务看起来像

public void Main()
{
    string zipfullpath = Dts.Variables["User::ZipFullPath"].Value.ToString();
    string inputfolder = Dts.Variables["$Project::InputFolder"].Value.ToString();

    using (ZipArchive arch = ZipFile.OpenRead(zipfullpath))
    {
        foreach (ZipArchiveEntry entry in arch.Entries)
        {
            entry.ExtractToFile(Path.Combine(inputfolder, entry.FullName),true);
            //ZipFile.ExtractToDirectory(zipfullpath, inputfolder);
        }
    }
    //File.Delete(zipfullpath);
    // TODO: Add your code here

    Dts.TaskResult = (int)ScriptResults.Success; 
}

更新

我在代码中做了一些更改，现在我可以创建主/根文件夹，即20160423，但我无法创建子目录（插入，删除，更新）来提取每个文件夹中的.dat文件。当我试图运行代码时，调试提示错误，该路径不存在，因为文件夹插入，更新和删除。

public void Main()
{
    // TODO: Add your code here

    string zipfullpath = Dts.Variables["User::ZipFullPath"].Value.ToString();
    string inputfolder = Dts.Variables["$Project::InputFolder"].Value.ToString();
    string rootfolder = Path.GetFileNameWithoutExtension(zipfullpath);

    using (ZipArchive arch = ZipFile.OpenRead(zipfullpath))
    {
        //var root = arch.Entries[0].FullName;
        //var result = from curr in arch.Entries
        //             where Path.GetDirectoryName(curr.FullName) != root
        //             where !string.IsNullOrEmpty(curr.Name)
        //             select curr;

        foreach (ZipArchiveEntry entry in arch.Entries)
        {
            //entry.ExtractToFile(Path.Combine(inputfolder, entry.FullName),true);
            //ZipFile.ExtractToDirectory(zipfullpath, inputfolder);
            //Gets the complete path for the destination file, including any
            //relative paths that were in the zip file
            string destinationFileName = Path.Combine(inputfolder,rootfolder, entry.FullName);

            //Gets just the new path, minus the file name so we can create the
            //directory if it does not exist
            string destinationFilePath = Path.GetDirectoryName(destinationFileName);

            //var newName = entry.FullName.Substring(root.Length);

            //Creates the directory (if it doesn't exist) for the new path
            Directory.CreateDirectory(destinationFileName);


            //if (!File.Exists(destinationFileName) || File.GetLastWriteTime(destinationFileName) < entry.LastWriteTime)
            //{
                //Either the file didn't exist or this file is newer, so
                //we will extract it and overwrite any existing file
                entry.ExtractToFile(destinationFileName, true);
            //}

        }
    }
    //File.Delete(zipfullpath);

    Dts.TaskResult = (int)ScriptResults.Success;
}

Answer 1

为什么不使用7zip。看看http://sqlserversolutions.blogspot.de/2008/10/zip-and-unzip-files-in-folder.html

问候

为什么在SSIS中使用脚本任务我不能完全解压缩像winzip或7zip这样的路径？

1 个答案: