ZipArchiveEntry.FullName 屬性

定義

命名空間:

System.IO.Compression

組件:

System.IO.Compression.dll

來源:

ZipArchiveEntry.cs

取得 Zip 封存中的項目相對路徑。

public:
 property System::String ^ FullName { System::String ^ get(); };

public string FullName { get; }

member this.FullName : string

Public ReadOnly Property FullName As String

屬性值

String

Zip 封存中的項目相對路徑。

備註

屬性 FullName 包含 zip 封存中項目的相對路徑，包括子目錄階層。 (相反地，Name屬性只包含專案的名稱，而且不包含子目錄 hierarchy.) 例如，如果您使用 方法在 zip 封存CreateEntryFromFile中建立兩個專案，並提供 NewEntry.txt 做為第一個專案的名稱和第AddedFolder\\NewEntry.txt二個專案，這兩個專案都會在 屬性中Name具有NewEntry.txt。 第一個專案也會在 屬性中FullName，NewEntry.txt但第二個專案會在 屬性中FullName。AddedFolder\\NewEntry.txt

您可以將任何字串指定為項目的路徑，包括指定無效和絕對路徑的字串。 因此， FullName 屬性可能包含格式不正確的值。 當您擷取 zip 封存的內容時，無效或絕對路徑可能會導致例外狀況。

範例

下列範例示範如何逐一查看 .zip 檔案的內容，以及擷取包含 .txt 擴展名的檔案。

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

class Program
{
    static void Main(string[] args)
    {
        string zipPath = @".\result.zip";

        Console.WriteLine("Provide path where to extract the zip file:");
        string extractPath = Console.ReadLine();

        // Normalizes the path.
        extractPath = Path.GetFullPath(extractPath);

        // Ensures that the last character on the extraction path
        // is the directory separator char.
        // Without this, a malicious zip file could try to traverse outside of the expected
        // extraction path.
        if (!extractPath.EndsWith(Path.DirectorySeparatorChar.ToString(), StringComparison.Ordinal))
            extractPath += Path.DirectorySeparatorChar;

        using (ZipArchive archive = ZipFile.OpenRead(zipPath))
        {
            foreach (ZipArchiveEntry entry in archive.Entries)
            {
                if (entry.FullName.EndsWith(".txt", StringComparison.OrdinalIgnoreCase))
                {
                    // Gets the full path to ensure that relative segments are removed.
                    string destinationPath = Path.GetFullPath(Path.Combine(extractPath, entry.FullName));

                    // Ordinal match is safest, case-sensitive volumes can be mounted within volumes that
                    // are case-insensitive.
                    if (destinationPath.StartsWith(extractPath, StringComparison.Ordinal))
                        entry.ExtractToFile(destinationPath);
                }
            }
        }
    }
}

Imports System.IO
Imports System.IO.Compression

Module Module1

    Sub Main()
        Dim zipPath As String = ".\result.zip"

        Console.WriteLine("Provide path where to extract the zip file:")
        Dim extractPath As String = Console.ReadLine()

        ' Normalizes the path.
        extractPath = Path.GetFullPath(extractPath)

        ' Ensures that the last character on the extraction path
        ' is the directory separator char. 
        ' Without this, a malicious zip file could try to traverse outside of the expected
        ' extraction path.
        If Not extractPath.EndsWith(Path.DirectorySeparatorChar.ToString(), StringComparison.Ordinal) Then
            extractPath += Path.DirectorySeparatorChar
        End If

        Using archive As ZipArchive = ZipFile.OpenRead(zipPath)
            For Each entry As ZipArchiveEntry In archive.Entries
                If entry.FullName.EndsWith(".txt", StringComparison.OrdinalIgnoreCase) Then

                    ' Gets the full path to ensure that relative segments are removed.
                    Dim destinationPath As String = Path.GetFullPath(Path.Combine(extractPath, entry.FullName))
                    
                    ' Ordinal match is safest, case-sensitive volumes can be mounted within volumes that
                    ' are case-insensitive.
                    If destinationPath.StartsWith(extractPath, StringComparison.Ordinal) Then 
                        entry.ExtractToFile(destinationPath)
                    End If

                End If
            Next
        End Using
    End Sub

End Module