压缩源码

㈠ 求一个java的压缩程序源代码。

package com.io2.homework;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;

/*压缩文件夹*/
public class MyMultipleFileZip
{
private String currentZipFilePath = "F:/MyZip.zip";
private String sourceFilePath;
private ZipOutputStream zos;
private FileInputStream fis;

public MyMultipleFileZip(String sourceFilePath)
{
try
{
this.sourceFilePath = sourceFilePath;
zos = new ZipOutputStream(new FileOutputStream(currentZipFilePath));
//设定文件压缩级别
zos.setLevel(9);
} catch (FileNotFoundException e)
{
e.printStackTrace();
}
}

// 在当前条目中写入具体内容
public void writeToEntryZip(String filePath)
{
try
{
fis = new FileInputStream(filePath);
} catch (FileNotFoundException e1)
{
e1.printStackTrace();
}
byte[] buff = new byte[1024];
int len = 0;
try
{
while ((len = fis.read(buff)) != -1)
{
zos.write(buff, 0, len);
}
} catch (IOException e)
{
e.printStackTrace();
}finally
{
if (fis != null)
try
{
fis.close();
} catch (IOException e)
{
e.printStackTrace();
}
}
}

// 添加文件条目
public void addFileEntryZip(String fileName)
{
try
{
zos.putNextEntry(new ZipEntry(fileName));
} catch (IOException e)
{
e.printStackTrace();
}
}

public void addDirectoryEntryZip(String directoryName)
{
try
{
zos.putNextEntry(new ZipEntry(directoryName + "/"));
} catch (IOException e)
{
e.printStackTrace();
}
}

// 遍历文件夹
public void listMyDirectory(String filePath)
{
File f = new File(filePath);
File[] files = f.listFiles();
if(files!=null)
{
for (File currentFile : files)
{
// 设置条目名称(此步骤非常关键)
String entryName= currentFile.getAbsolutePath().split(":")[1].substring(1);
// 获取文件物理路径
String absolutePath = currentFile.getAbsolutePath();
if (currentFile.isDirectory())
{
addDirectoryEntryZip(entryName);
//进行递归调用
listMyDirectory(absolutePath);

}
else
{
addFileEntryZip(entryName);
writeToEntryZip(absolutePath);
}
}
}
}

// 主要流程
public void mainWorkFlow()
{
listMyDirectory(this.sourceFilePath);
if(zos!=null)
try
{
zos.close();
} catch (IOException e)
{
e.printStackTrace();
}
}

public static void main(String[] args)
{
new MyMultipleFileZip("F:/fountainDirectory").mainWorkFlow();
}
}