IsharpCode 创建压缩文件，压入 字符串文本，压入 dataset

using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using ICSharpCode.SharpZipLib.Zip;
using System.IO;
using System.Xml;
using System.Text;
/// <summary>
/// ZipHelper 的摘要说明,yeness
/// </summary>
public class ZipHelper
{
public ZipHelper()
{

}
/// <summary>
/// 增加一个空rar文件,J#方法
/// </summary>
/// <param name="zipFileName">新建rar名称</param>
/// <param name="zipFilePath">新建rar路径</param>
public static void CreateRar(string zipFileName, string zipFilePath)
{
try
{
new java.util.zip.ZipOutputStream(new java.io.FileOutputStream(zipFilePath + "//" + zipFileName + ".rar")).close();
new java.util.zip.ZipFile(zipFilePath + "//" + zipFileName+".rar");
}
catch (Exception ex)
{
throw new System.NotImplementedException(ex.Message);
}
}
/// <summary>
/// 增加一个空rar文件,ICSharp方法
/// </summary>
/// <param name="zipFileName"></param>
/// <param name="zipFilePath"></param>
public static void CreateRarICSharp(string zipFileName, string zipFilePath)
{
try
{
string zipFile = zipFilePath + "//" + zipFileName + ".rar";
MemoryStream ms = new MemoryStream();
//byte[] data = new byte[2048];
ZipOutputStream zipOutputStream = new ZipOutputStream(ms);

ZipEntry zipEntry = new ZipEntry("temp");
zipEntry.DateTime = DateTime.Now;
zipOutputStream.PutNextEntry(zipEntry);

string str = " ";
byte[] buffer = System.Text.Encoding.UTF8.GetBytes(str);

int sourceBytes;
do
{
sourceBytes = ms.Read(buffer, 0, buffer.Length);
zipOutputStream.Write(buffer, 0, buffer.Length);
}
while (sourceBytes > 0);
zipOutputStream.Close();
zipOutputStream.Finish();
using (FileStream fileStream = new FileStream(zipFile, FileMode.Create, FileAccess.Write))
{
byte[] b = ms.ToArray();
fileStream.Write(b, 0, b.Length);
}
}
catch (Exception ex)
{
throw new System.NotImplementedException(ex.Message);
}
}

/// <summary>
/// 向rar文件添加一个文件
/// </summary>
/// <param name="zipFilePath">rar路径</param>
/// <param name="newZipTxtName">新建压缩文本名称</param>
/// <param name="newZipTxtContent">新建压缩文本内容</param>
public static void AddTxt(string zipFilePath, string newZipTxtName, string newZipTxtContent)
{
try
{
byte[] buffer;//rar文件

using (FileStream fStream = new FileStream(zipFilePath, FileMode.Open))//打开压缩流
{
buffer = new byte[fStream.Length];
fStream.Read(buffer, 0, buffer.Length);//读取到缓冲区
}

MemoryStream msOutputStream = new MemoryStream();//压缩内存流
ZipOutputStream zipOutputStream = new ZipOutputStream(msOutputStream);//定义一个压缩流对象

MemoryStream msInputStream = new MemoryStream(buffer);//解压缩内存流，缓冲区转换成内存流
ZipInputStream zipInputStream = new ZipInputStream(msInputStream);//内存流转换成解压缩流

ZipEntry entry;
byte[] data = new byte[2048];
while ((entry = zipInputStream.GetNextEntry()) != null)//如果压缩文件内存在文件。
{
ZipEntry zipEntry = new ZipEntry(entry.Name);//压缩文件的配置信息
zipEntry.DateTime = DateTime.Now;//压缩时间
zipOutputStream.PutNextEntry(zipEntry);//压缩内存流读入文件信息

int sourceBytes;
do
{
sourceBytes = zipInputStream.Read(data, 0, data.Length);//解压原rar文件
zipOutputStream.Write(data, 0, sourceBytes);//读入到压缩流
}
while (sourceBytes > 0);
}

//读入文本
ZipEntry zipentry = new ZipEntry(newZipTxtName);
zipentry.DateTime = DateTime.Now;//文件时间
zipOutputStream.PutNextEntry(zipentry);//压缩流记入

byte[] b = System.Text.Encoding.UTF8.GetBytes(newZipTxtContent);
int sBytes;
do
{
sBytes = msOutputStream.Read(b, 0, b.Length);
zipOutputStream.Write(b, 0, b.Length);
}
while (sBytes > 0);
////读入文本结束
zipOutputStream.Close();
zipOutputStream.Finish();
using (FileStream fStream = new FileStream(zipFilePath, FileMode.Create, FileAccess.Write))
{//重新建立压缩文件
byte[] e = msOutputStream.ToArray();
fStream.Write(e, 0, e.Length);
//fStream.Seek(0, SeekOrigin.Begin);
}
}
catch (Exception ex)
{
throw new System.NotImplementedException(ex.Message);
}
}

/// <summary>
/// 向rar文件添加一个文件
/// </summary>
/// <param name="zipFilePath">rar路径</param>
/// <param name="newZipTxtName">新建压缩文本名称</param>
/// <param name="newZipTxtContent">新建压缩文本内容</param>
public static void AddDataset(string zipFilePath,DataSet ds)
{
try
{
byte[] buffer;//rar文件

using (FileStream fStream = new FileStream(zipFilePath, FileMode.Open))//打开压缩流
{
buffer = new byte[fStream.Length];
fStream.Read(buffer, 0, buffer.Length);//读取到缓冲区
}

MemoryStream msOutputStream = new MemoryStream();//压缩内存流
ZipOutputStream zipOutputStream = new ZipOutputStream(msOutputStream);//定义一个压缩流对象

MemoryStream msInputStream = new MemoryStream(buffer);//解压缩内存流，缓冲区转换成内存流
ZipInputStream zipInputStream = new ZipInputStream(msInputStream);//内存流转换成解压缩流

ZipEntry entry;
byte[] data = new byte[2048];
while ((entry = zipInputStream.GetNextEntry()) != null)//如果压缩文件内存在文件。
{
ZipEntry zipEntry = new ZipEntry(entry.Name);//压缩文件的配置信息
zipEntry.DateTime = DateTime.Now;//压缩时间
zipOutputStream.PutNextEntry(zipEntry);//压缩内存流读入文件信息

int sourceBytes;
do
{
sourceBytes = zipInputStream.Read(data, 0, data.Length);//解压原rar文件
zipOutputStream.Write(data, 0, sourceBytes);//读入到压缩流
}
while (sourceBytes > 0);
}

//读入文本
for (int i = 0; i < ds.Tables.Count; i++)
{
ZipEntry zipentry = new ZipEntry(ds.Tables[i].TableName);
zipentry.DateTime = DateTime.Now;//文件时间
zipOutputStream.PutNextEntry(zipentry);//压缩流记入

byte[] b =System.Text.Encoding.UTF8.GetBytes(ConvertDataTableToXML(ds.Tables[i]));
int sBytes;
do
{
sBytes = msOutputStream.Read(b, 0, b.Length);
zipOutputStream.Write(b, 0, b.Length);
}
while (sBytes > 0);
}
////读入文本结束
zipOutputStream.Close();
zipOutputStream.Finish();
using (FileStream fStream = new FileStream(zipFilePath, FileMode.Create, FileAccess.Write))
{//重新建立压缩文件
byte[] e = msOutputStream.ToArray();
fStream.Write(e, 0, e.Length);
//fStream.Seek(0, SeekOrigin.Begin);
}
}
catch (Exception ex)
{
throw new System.NotImplementedException(ex.Message);
}
}

private static string ConvertDataTableToXML(DataTable xmlDS)
{
MemoryStream stream = null;
XmlTextWriter writer = null;
try
{
stream = new MemoryStream();
writer = new XmlTextWriter(stream, Encoding.UTF8);
xmlDS.WriteXml(writer);
int count = (int)stream.Length;
byte[] arr = new byte[count];
stream.Seek(0, SeekOrigin.Begin);
stream.Read(arr, 0, count);
string sssss = Encoding.UTF8.GetString(arr).Trim();
return sssss;
}
catch
{
return String.Empty;
}
finally
{
if (writer != null) writer.Close();
}
}

}