C#实现批量压缩和解压缩的示例代码

public partial class Form1 : Form
{
    public Form1()
    {
        InitializeComponent();
    }

    #region 压缩文件及文件夹
    /// <summary>
    /// 递归压缩文件夹方法
    /// </summary>
    /// <param name="FolderToZip"></param>
    /// <param name="ZOPStream">压缩文件输出流对象</param>
    /// <param name="ParentFolderName"></param>
    private bool ZipFileDictory(string FolderToZip, ZipOutputStream ZOPStream, string ParentFolderName)
    {
        bool res = true;
        string[] folders, filenames;
        ZipEntry entry = null;
        FileStream fs = null;
        Crc32 crc = new Crc32();
        try
        {
            //创建当前文件夹
            entry = new ZipEntry(Path.Combine(ParentFolderName, Path.GetFileName(FolderToZip) + "/"));  //加上 “/” 才会当成是文件夹创建
            ZOPStream.PutNextEntry(entry);
            ZOPStream.Flush();
            //先压缩文件，再递归压缩文件夹 
            filenames = Directory.GetFiles(FolderToZip);
            foreach (string file in filenames)
            {
                //打开压缩文件
                fs = File.OpenRead(file);
                byte[] buffer = new byte[fs.Length];
                fs.Read(buffer, 0, buffer.Length);
                entry = new ZipEntry(Path.Combine(ParentFolderName, Path.GetFileName(FolderToZip) + "/" + Path.GetFileName(file)));
                entry.DateTime = DateTime.Now;
                entry.Size = fs.Length;
                fs.Close();
                crc.Reset();
                crc.Update(buffer);
                entry.Crc = crc.Value;
                ZOPStream.PutNextEntry(entry);
                ZOPStream.Write(buffer, 0, buffer.Length);
            }
        }
        catch
        {
            res = false;
        }
        finally
        {
            if (fs != null)
            {
                fs.Close();
                fs = null;
            }
            if (entry != null)
            {
                entry = null;
            }
            GC.Collect();
            GC.Collect(1);
        }
        folders = Directory.GetDirectories(FolderToZip);
        foreach (string folder in folders)
        {
            if (!ZipFileDictory(folder, ZOPStream, Path.Combine(ParentFolderName, Path.GetFileName(FolderToZip))))
            {
                return false;
            }
        }

        return res;
    }

    /// <summary>
    /// 压缩目录
    /// </summary>
    /// <param name="FolderToZip">待压缩的文件夹</param>
    /// <param name="ZipedFile">压缩后的文件名</param>
    /// <returns></returns>
    private bool ZipFileDictory(string FolderToZip, string ZipedFile)
    {
        bool res;
        if (!Directory.Exists(FolderToZip))
        {
            return false;
        }
        ZipOutputStream ZOPStream = new ZipOutputStream(File.Create(ZipedFile));
        ZOPStream.SetLevel(6);
        res = ZipFileDictory(FolderToZip, ZOPStream, "");
        ZOPStream.Finish();
        ZOPStream.Close();
        return res;
    }

    /// <summary>
    /// 压缩文件和文件夹
    /// </summary>
    /// <param name="FileToZip">待压缩的文件或文件夹</param>
    /// <param name="ZipedFile">压缩后生成的压缩文件名，全路径格式</param>
    /// <returns></returns>
    public bool Zip(String FileToZip, String ZipedFile)
    {
        if (Directory.Exists(FileToZip))
        {
            return ZipFileDictory(FileToZip, ZipedFile);
        }
        else
        {
            return false;
        }
    }
    #endregion

    #region 复制文件//
    public void CopyFile(string[] list,string strNewPath,ToolStripProgressBar TSPBar)
    {
        try
        {
            TSPBar.Maximum = list.Length;
            string strNewFile = "c:\\" + strNewPath;
            if (!Directory.Exists(strNewFile))
                Directory.CreateDirectory(strNewFile);
            foreach (object objFile in list)
            {
                string strFile = objFile.ToString();
                string Filename = strFile.Substring(strFile.LastIndexOf("\\") + 1, strFile.Length - strFile.LastIndexOf("\\") - 1);
                File.Copy(strFile, strNewFile+"\\"+Filename, true);
                TSPBar.Value += 1;
            }
        }
        catch (Exception ex)
        {
            MessageBox.Show(ex.Message);
        }
    }
    #endregion

    #region 解压文件
    /// <summary>
    /// 解压文件
    /// </summary>
    /// <param name="FileToUpZip">待解压的文件</param>
    /// <param name="ZipedFolder">指定解压目标目录</param>
    public void UnZip(string FileToUpZip, string ZipedFolder)
    {
        if (!File.Exists(FileToUpZip))
        {
            return;
        }
        if (!Directory.Exists(ZipedFolder))
        {
            Directory.CreateDirectory(ZipedFolder);
        }
        ZipInputStream ZIPStream = null;
        ZipEntry theEntry = null;
        string fileName;
        FileStream streamWriter = null;
        try
        {
            //生成一个GZipInputStream流，用来打开压缩文件
            ZIPStream = new ZipInputStream(File.OpenRead(FileToUpZip));
            while ((theEntry = ZIPStream.GetNextEntry()) != null)
            {
                if (theEntry.Name != String.Empty)
                {
                    fileName = Path.Combine(ZipedFolder, theEntry.Name);
                    //判断文件路径是否是文件夹
                    if (fileName.EndsWith("/") || fileName.EndsWith("\\"))
                    {
                        Directory.CreateDirectory(fileName);
                        continue;
                    }
                    //生成一个文件流，它用来生成解压文件
                    streamWriter = File.Create(fileName);
                    int size = 2048;//指定压缩块的大小，一般为2048的倍数
                    byte[] data = new byte[2048];//指定缓冲区的大小
                    while (true)
                    {
                        size = ZIPStream.Read(data, 0, data.Length);//读入一个压缩块
                        if (size > 0)
                        {
                            streamWriter.Write(data, 0, size);//写入解压文件代表的文件流
                        }
                        else
                        {
                            break;//若读到压缩文件尾，则结束 
                        }
                    }
                }
            }
        }
        finally
        {
            if (streamWriter != null)
            {
                streamWriter.Close();
                streamWriter = null;
            }
            if (theEntry != null)
            {
                theEntry = null;
            }
            if (ZIPStream != null)
            {
                ZIPStream.Close();
                ZIPStream = null;
            }
            GC.Collect();
            GC.Collect(1);
        }
    }
    #endregion

    string[] files;//存储要进行压缩的文件数组
    string[] files2;//存储要进行解压缩的文件数组
    private void button1_Click(object sender, EventArgs e)//选择批量压缩的文件
    {
        if (openFileDialog1.ShowDialog() == DialogResult.OK)
        {
            files = openFileDialog1.FileNames;
            string file = "";
            for (int i = 0; i < files.Length; i++)
            {
                file += files[i].ToString() + ",";
            }
            file = file.Remove(file.LastIndexOf(","));
            txtfiles.Text = file;
        }
    }

    private void button3_Click(object sender, EventArgs e)//选择批量解压缩的文件
    {
        if (openFileDialog2.ShowDialog() == DialogResult.OK)
        {
            files2 = openFileDialog2.FileNames;
            string file = "";
            for (int i = 0; i < files2.Length; i++)
            {
                file += files2[i].ToString() + ",";
            }
            file = file.Remove(file.LastIndexOf(","));
            txtfiles2.Text = file;
        }
    }

    private void button2_Click(object sender, EventArgs e)//批量压缩
    {
        try
        {
            if (txtfiles.Text.Trim()!="")
            {
                toolStripProgressBar1.Maximum = files.Length;
                if (files.Length > 1)
                {
                    if (saveFileDialog1.ShowDialog() == DialogResult.OK)
                    {
                        string strNewPath = DateTime.Now.ToString("yyyyMMddhhmmss");
                        CopyFile(files, strNewPath, toolStripProgressBar1);
                        Zip("c:\\"+strNewPath,saveFileDialog1.FileName);
                        Directory.Delete("c:\\" + strNewPath, true);
                        MessageBox.Show("压缩文件成功");
                    }
                }
                toolStripProgressBar1.Value = 0;
            }
            else
            {
                MessageBox.Show("警告：请选择要进行批量压缩的文件！","警告",MessageBoxButtons.OK,MessageBoxIcon.Error);
            }
        }
        catch { }
    }

    private void button4_Click(object sender, EventArgs e)
    {
        try
        {
            if (txtfiles2.Text.Trim() != "")
            {
                toolStripProgressBar1.Maximum = files2.Length;
                for (int i = 0; i < files2.Length; i++)
                {
                    toolStripProgressBar1.Value = i;
                    string path = files2[i].ToString();
                    string newpath = path.Remove(path.LastIndexOf("\\") + 1);
                    UnZip(path, newpath);
                }
                toolStripProgressBar1.Value = 0;
                MessageBox.Show("解压缩成功！");
            }
            else
            {
                MessageBox.Show("警告：请选择要进行批量解压缩的文件！", "警告", MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
        }
        catch { }
            
    }
}

partial class Form1
{
    /// <summary>
    /// 必需的设计器变量。
    /// </summary>
    private System.ComponentModel.IContainer components = null;

    /// <summary>
    /// 清理所有正在使用的资源。
    /// </summary>
    /// <param name="disposing">如果应释放托管资源，为 true；否则为 false。</param>
    protected override void Dispose(bool disposing)
    {
        if (disposing && (components != null))
        {
            components.Dispose();
        }
        base.Dispose(disposing);
    }

    #region Windows 窗体设计器生成的代码

    /// <summary>
    /// 设计器支持所需的方法 - 不要
    /// 使用代码编辑器修改此方法的内容。
    /// </summary>
    private void InitializeComponent()
    {
        this.groupBox1 = new System.Windows.Forms.GroupBox();
        this.button1 = new System.Windows.Forms.Button();
        this.txtfiles = new System.Windows.Forms.TextBox();
        this.label1 = new System.Windows.Forms.Label();
        this.openFileDialog1 = new System.Windows.Forms.OpenFileDialog();
        this.button2 = new System.Windows.Forms.Button();
        this.groupBox2 = new System.Windows.Forms.GroupBox();
        this.button3 = new System.Windows.Forms.Button();
        this.txtfiles2 = new System.Windows.Forms.TextBox();
        this.label2 = new System.Windows.Forms.Label();
        this.button4 = new System.Windows.Forms.Button();
        this.openFileDialog2 = new System.Windows.Forms.OpenFileDialog();
        this.statusStrip1 = new System.Windows.Forms.StatusStrip();
        this.toolStripStatusLabel1 = new System.Windows.Forms.ToolStripStatusLabel();
        this.toolStripProgressBar1 = new System.Windows.Forms.ToolStripProgressBar();
        this.saveFileDialog1 = new System.Windows.Forms.SaveFileDialog();
        this.groupBox1.SuspendLayout();
        this.groupBox2.SuspendLayout();
        this.statusStrip1.SuspendLayout();
        this.SuspendLayout();
        // 
        // groupBox1
        // 
        this.groupBox1.Controls.Add(this.button1);
        this.groupBox1.Controls.Add(this.txtfiles);
        this.groupBox1.Controls.Add(this.label1);
        this.groupBox1.ForeColor = System.Drawing.Color.Black;
        this.groupBox1.Location = new System.Drawing.Point(12, 12);
        this.groupBox1.Name = "groupBox1";
        this.groupBox1.Size = new System.Drawing.Size(432, 63);
        this.groupBox1.TabIndex = 0;
        this.groupBox1.TabStop = false;
        this.groupBox1.Text = "批量压缩文件";
        // 
        // button1
        // 
        this.button1.Location = new System.Drawing.Point(383, 24);
        this.button1.Name = "button1";
        this.button1.Size = new System.Drawing.Size(43, 23);
        this.button1.TabIndex = 2;
        this.button1.Text = "...";
        this.button1.UseVisualStyleBackColor = true;
        this.button1.Click += new System.EventHandler(this.button1_Click);
        // 
        // txtfiles
        // 
        this.txtfiles.BackColor = System.Drawing.Color.White;
        this.txtfiles.Location = new System.Drawing.Point(116, 25);
        this.txtfiles.Name = "txtfiles";
        this.txtfiles.ReadOnly = true;
        this.txtfiles.Size = new System.Drawing.Size(260, 21);
        this.txtfiles.TabIndex = 1;
        // 
        // label1
        // 
        this.label1.AutoSize = true;
        this.label1.Location = new System.Drawing.Point(6, 28);
        this.label1.Name = "label1";
        this.label1.Size = new System.Drawing.Size(113, 12);
        this.label1.TabIndex = 0;
        this.label1.Text = "选择要压缩的文件：";
        // 
        // openFileDialog1
        // 
        this.openFileDialog1.InitialDirectory = "c:";
        this.openFileDialog1.Multiselect = true;
        // 
        // button2
        // 
        this.button2.Location = new System.Drawing.Point(128, 172);
        this.button2.Name = "button2";
        this.button2.Size = new System.Drawing.Size(85, 23);
        this.button2.TabIndex = 3;
        this.button2.Text = "批量压缩";
        this.button2.UseVisualStyleBackColor = true;
        this.button2.Click += new System.EventHandler(this.button2_Click);
        // 
        // groupBox2
        // 
        this.groupBox2.Controls.Add(this.button3);
        this.groupBox2.Controls.Add(this.txtfiles2);
        this.groupBox2.Controls.Add(this.label2);
        this.groupBox2.ForeColor = System.Drawing.Color.Black;
        this.groupBox2.Location = new System.Drawing.Point(12, 91);
        this.groupBox2.Name = "groupBox2";
        this.groupBox2.Size = new System.Drawing.Size(432, 63);
        this.groupBox2.TabIndex = 4;
        this.groupBox2.TabStop = false;
        this.groupBox2.Text = "批量解压缩文件";
        // 
        // button3
        // 
        this.button3.Location = new System.Drawing.Point(383, 24);
        this.button3.Name = "button3";
        this.button3.Size = new System.Drawing.Size(43, 23);
        this.button3.TabIndex = 2;
        this.button3.Text = "...";
        this.button3.UseVisualStyleBackColor = true;
        this.button3.Click += new System.EventHandler(this.button3_Click);
        // 
        // txtfiles2
        // 
        this.txtfiles2.BackColor = System.Drawing.Color.White;
        this.txtfiles2.Location = new System.Drawing.Point(128, 24);
        this.txtfiles2.Name = "txtfiles2";
        this.txtfiles2.ReadOnly = true;
        this.txtfiles2.Size = new System.Drawing.Size(248, 21);
        this.txtfiles2.TabIndex = 1;
        // 
        // label2
        // 
        this.label2.AutoSize = true;
        this.label2.Location = new System.Drawing.Point(6, 28);
        this.label2.Name = "label2";
        this.label2.Size = new System.Drawing.Size(125, 12);
        this.label2.TabIndex = 0;
        this.label2.Text = "选择要解压缩的文件：";
        // 
        // button4
        // 
        this.button4.Location = new System.Drawing.Point(233, 172);
        this.button4.Name = "button4";
        this.button4.Size = new System.Drawing.Size(85, 23);
        this.button4.TabIndex = 5;
        this.button4.Text = "批量解压缩";
        this.button4.UseVisualStyleBackColor = true;
        this.button4.Click += new System.EventHandler(this.button4_Click);
        // 
        // openFileDialog2
        // 
        this.openFileDialog2.DefaultExt = "RAR";
        this.openFileDialog2.Filter = "压缩文件|*.rar;*.zip";
        this.openFileDialog2.InitialDirectory = "c:";
        this.openFileDialog2.Multiselect = true;
        // 
        // statusStrip1
        // 
        this.statusStrip1.Items.AddRange(new System.Windows.Forms.ToolStripItem[] {
        this.toolStripStatusLabel1,
        this.toolStripProgressBar1});
        this.statusStrip1.Location = new System.Drawing.Point(0, 200);
        this.statusStrip1.Name = "statusStrip1";
        this.statusStrip1.Size = new System.Drawing.Size(456, 22);
        this.statusStrip1.TabIndex = 6;
        this.statusStrip1.Text = "statusStrip1";
        // 
        // toolStripStatusLabel1
        // 
        this.toolStripStatusLabel1.AutoSize = false;
        this.toolStripStatusLabel1.Name = "toolStripStatusLabel1";
        this.toolStripStatusLabel1.Size = new System.Drawing.Size(100, 17);
        this.toolStripStatusLabel1.Text = "执行进度：";
        this.toolStripStatusLabel1.TextAlign = System.Drawing.ContentAlignment.MiddleRight;
        // 
        // toolStripProgressBar1
        // 
        this.toolStripProgressBar1.Name = "toolStripProgressBar1";
        this.toolStripProgressBar1.Size = new System.Drawing.Size(200, 16);
        // 
        // saveFileDialog1
        // 
        this.saveFileDialog1.Filter = "RAR|*.rar";
        // 
        // Form1
        // 
        this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 12F);
        this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
        this.ClientSize = new System.Drawing.Size(456, 222);
        this.Controls.Add(this.statusStrip1);
        this.Controls.Add(this.button4);
        this.Controls.Add(this.groupBox2);
        this.Controls.Add(this.button2);
        this.Controls.Add(this.groupBox1);
        this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedSingle;
        this.MaximizeBox = false;
        this.Name = "Form1";
        this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen;
        this.Text = "批量解压缩";
        this.groupBox1.ResumeLayout(false);
        this.groupBox1.PerformLayout();
        this.groupBox2.ResumeLayout(false);
        this.groupBox2.PerformLayout();
        this.statusStrip1.ResumeLayout(false);
        this.statusStrip1.PerformLayout();
        this.ResumeLayout(false);
        this.PerformLayout();

    }

    #endregion

    private System.Windows.Forms.GroupBox groupBox1;
    private System.Windows.Forms.TextBox txtfiles;
    private System.Windows.Forms.Label label1;
    private System.Windows.Forms.Button button1;
    private System.Windows.Forms.OpenFileDialog openFileDialog1;
    private System.Windows.Forms.Button button2;
    private System.Windows.Forms.GroupBox groupBox2;
    private System.Windows.Forms.Button button3;
    private System.Windows.Forms.TextBox txtfiles2;
    private System.Windows.Forms.Label label2;
    private System.Windows.Forms.Button button4;
    private System.Windows.Forms.OpenFileDialog openFileDialog2;
    private System.Windows.Forms.StatusStrip statusStrip1;
    private System.Windows.Forms.ToolStripProgressBar toolStripProgressBar1;
    private System.Windows.Forms.ToolStripStatusLabel toolStripStatusLabel1;
    private System.Windows.Forms.SaveFileDialog saveFileDialog1;
}