C# ZipFile.Initialize方法代码示例

 /// <summary>
 ///   Rewrite the directory within a zipfile.
 /// </summary>
 ///
 /// <remarks>
 ///
 /// <para>
 ///   In cases of data error, the directory in a zip file can get out of
 ///   synch with the entries in the zip file.  This method attempts to fix
 ///   the zip file if this has occurred.
 /// </para>
 ///
 /// <para> This can take a long time for large zip files. </para>
 ///
 /// <para> This won't work if the zip file uses a non-standard
 /// code page - neither IBM437 nor UTF-8. </para>
 ///
 /// <para>
 ///   This method is not supported in the Reduced or Compact Framework
 ///   versions of DotNetZip.
 /// </para>
 ///
 /// <para>
 ///   Developers using COM can use the <see
 ///   cref="ComHelper.FixZipDirectory(String)">ComHelper.FixZipDirectory(String)</see>
 ///   method.
 /// </para>
 ///
 /// </remarks>
 ///
 /// <param name="zipFileName">The filename to of the zip file to fix.</param>
 ///
 /// <seealso cref="CheckZip(string)"/>
 /// <seealso cref="CheckZip(string,bool,System.IO.TextWriter)"/>
 public static void FixZipDirectory(string zipFileName)
 {
     using (var zip = new ZipFile())
     {
         zip.FullScan = true;
         zip.Initialize(zipFileName);
         zip.Save(zipFileName);
     }
 }

        /// <summary>
        ///   Checks a zip file to see if its directory is consistent,
        ///   and optionally fixes the directory if necessary.
        /// </summary>
        ///
        /// <remarks>
        ///
        /// <para>
        ///   In cases of data error, the directory within a zip file can get out of
        ///   synch with the entries in the zip file.  This method checks the given
        ///   zip file, and returns true if this has occurred. It also optionally
        ///   fixes the zipfile, saving the fixed copy in <em>Name</em>_Fixed.zip.
        /// </para>
        ///
        /// <para>
        ///   This method may take a long time to run for large zip files.  It
        ///   will take even longer if the file actually needs to be fixed, and if
        ///   <c>fixIfNecessary</c> is true.
        /// </para>
        ///
        /// <para>
        ///   This method is not supported in the Reduced or Compact
        ///   Framework versions of DotNetZip.
        /// </para>
        ///
        /// </remarks>
        ///
        /// <param name="zipFileName">The filename to of the zip file to check.</param>
        ///
        /// <param name="fixIfNecessary">If true, the method will fix the zip file if
        ///     necessary.</param>
        ///
        /// <param name="writer">
        /// a TextWriter in which messages generated while checking will be written.
        /// </param>
        ///
        /// <returns>true if the named zip is OK; false if the file needs to be fixed.</returns>
        ///
        /// <seealso cref="CheckZip(string)"/>
        /// <seealso cref="FixZipDirectory(string)"/>
        public static bool CheckZip(string zipFileName, bool fixIfNecessary,
                                    TextWriter writer)

        {
            ZipFile zip1 = null, zip2 = null;
            bool isOk = true;
            try
            {
                zip1 = new ZipFile();
                zip1.FullScan = true;
                zip1.Initialize(zipFileName);

                zip2 = ZipFile.Read(zipFileName);

                foreach (var e1 in zip1)
                {
                    foreach (var e2 in zip2)
                    {
                        if (e1.FileName == e2.FileName)
                        {
                            if (e1._RelativeOffsetOfLocalHeader != e2._RelativeOffsetOfLocalHeader)
                            {
                                isOk = false;
                                if (writer != null)
                                writer.WriteLine("{0}: mismatch in RelativeOffsetOfLocalHeader  (0x{1:X16} != 0x{2:X16})",
                                                        e1.FileName, e1._RelativeOffsetOfLocalHeader,
                                                        e2._RelativeOffsetOfLocalHeader);
                            }
                            if (e1._CompressedSize != e2._CompressedSize)
                            {
                                isOk = false;
                                if (writer != null)
                                writer.WriteLine("{0}: mismatch in CompressedSize  (0x{1:X16} != 0x{2:X16})",
                                                        e1.FileName, e1._CompressedSize,
                                                        e2._CompressedSize);
                            }
                            if (e1._UncompressedSize != e2._UncompressedSize)
                            {
                                isOk = false;
                                if (writer != null)
                                writer.WriteLine("{0}: mismatch in UncompressedSize  (0x{1:X16} != 0x{2:X16})",
                                                        e1.FileName, e1._UncompressedSize,
                                                        e2._UncompressedSize);
                            }
                            if (e1.CompressionMethod != e2.CompressionMethod)
                            {
                                isOk = false;
                                if (writer != null)
                                writer.WriteLine("{0}: mismatch in CompressionMethod  (0x{1:X4} != 0x{2:X4})",
                                                        e1.FileName, e1.CompressionMethod,
                                                        e2.CompressionMethod);
                            }
                            if (e1.Crc != e2.Crc)
                            {
                                isOk = false;
                                if (writer != null)
                                writer.WriteLine("{0}: mismatch in Crc32  (0x{1:X4} != 0x{2:X4})",
                                                        e1.FileName, e1.Crc,
                                                        e2.Crc);
                            }
//.........这里部分代码省略.........

        /// <summary>
        ///   Checks a zip file to see if its directory is consistent,
        ///   and optionally fixes the directory if necessary.
        /// </summary>
        ///
        /// <remarks>
        ///
        /// <para>
        ///   In cases of data error, the directory within a zip file can get out of
        ///   synch with the entries in the zip file.  This method checks the given
        ///   zip file, and returns true if this has occurred. It also optionally
        ///   fixes the zipfile, saving the fixed copy in <em>Name</em>_Fixed.zip.
        /// </para>
        ///
        /// <para>
        ///   This method may take a long time to run for large zip files.  It
        ///   will take even longer if the file actually needs to be fixed, and if
        ///   <c>fixIfNecessary</c> is true.
        /// </para>
        ///
        /// <para>
        ///   This method is not supported in the Reduced or Compact
        ///   Framework versions of DotNetZip.
        /// </para>
        ///
        /// </remarks>
        ///
        /// <param name="zipFileName">The filename to of the zip file to check.</param>
        ///
        /// <param name="fixIfNecessary">If true, the method will fix the zip file if
        ///     necessary.</param>
        ///
        /// <param name="messages">
        /// a collection of messages generated while checking, indicating any problems that are found.
        /// </param>
        ///
        /// <returns>true if the named zip is OK; false if the file needs to be fixed.</returns>
        ///
        /// <seealso cref="CheckZip(string)"/>
        /// <seealso cref="FixZipDirectory(string)"/>
        public static bool CheckZip(string zipFileName, bool fixIfNecessary,
                                    out System.Collections.ObjectModel.ReadOnlyCollection<String> messages)
        {
            List<String> notes = new List<String>();
            ZipFile zip1 = null;
            ZipFile zip2 = null;
            bool isOk = true;
            try
            {
                zip1 = new ZipFile();
                zip1.FullScan = true;
                zip1.Initialize(zipFileName);

                zip2 = ZipFile.Read(zipFileName);

                foreach (var e1 in zip1)
                {
                    foreach (var e2 in zip2)
                    {
                        if (e1.FileName == e2.FileName)
                        {
                            if (e1._RelativeOffsetOfLocalHeader != e2._RelativeOffsetOfLocalHeader)
                            {
                                isOk = false;
                                notes.Add(String.Format("{0}: mismatch in RelativeOffsetOfLocalHeader  (0x{1:X16} != 0x{2:X16})",
                                                        e1.FileName, e1._RelativeOffsetOfLocalHeader,
                                                        e2._RelativeOffsetOfLocalHeader));
                            }
                            if (e1._CompressedSize != e2._CompressedSize)
                            {
                                isOk = false;
                                notes.Add(String.Format("{0}: mismatch in CompressedSize  (0x{1:X16} != 0x{2:X16})",
                                                        e1.FileName, e1._CompressedSize,
                                                        e2._CompressedSize));
                            }
                            if (e1._UncompressedSize != e2._UncompressedSize)
                            {
                                isOk = false;
                                notes.Add(String.Format("{0}: mismatch in UncompressedSize  (0x{1:X16} != 0x{2:X16})",
                                                        e1.FileName, e1._UncompressedSize,
                                                        e2._UncompressedSize));
                            }
                            if (e1.CompressionMethod != e2.CompressionMethod)
                            {
                                isOk = false;
                                notes.Add(String.Format("{0}: mismatch in CompressionMethod  (0x{1:X4} != 0x{2:X4})",
                                                        e1.FileName, e1.CompressionMethod,
                                                        e2.CompressionMethod));
                            }
                            if (e1.Crc != e2.Crc)
                            {
                                isOk = false;
                                notes.Add(String.Format("{0}: mismatch in Crc32  (0x{1:X4} != 0x{2:X4})",
                                                        e1.FileName, e1.Crc,
                                                        e2.Crc));
                            }

                            // found a match, so stop the inside loop
                            break;
                        }
//.........这里部分代码省略.........

        public void Error_ZipFile_Initialize_Error()
        {
            string notaZipFile = GetScript("VbsUnzip-ShellApp.vbs");

            // try to read a bogus zip archive
            //Directory.SetCurrentDirectory(TopLevelDir);
            using (ZipFile zip1 = new ZipFile())
            {
                zip1.Initialize(notaZipFile);
            }
        }

 public static ZipFile ReadZipFile(string filename)
 {
     var zip = new ZipFile (new System.Text.UTF8Encoding (false));
     zip.CaseSensitiveRetrieval = true;
     zip.Initialize (filename);
     return zip;
 }