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java解压缩文件代码 java实现解压缩( 六 )

IT技术文件


* @param includeZipFileName 解压后的文件保存的路径是否包含压缩文件的文件名 。true-包含；false-不包含
*/
@SuppressWarnings("unchecked")
public static void unzip(String zipFilePath, String unzipFilePath, boolean includeZipFileName) throws Exception
{
if (StringUtils.isEmpty(zipFilePath) || StringUtils.isEmpty(unzipFilePath))
{
throw new ParameterException(ICommonResultCode.PARAMETER_IS_NULL);
}
File zipFile = new File(zipFilePath);
//如果解压后的文件保存路径包含压缩文件的文件名，则追加该文件名到解压路径
if (includeZipFileName)
{
String fileName = zipFile.getName();
if (StringUtils.isNotEmpty(fileName))
{
fileName = fileName.substring(0, fileName.lastIndexOf("."));
}
unzipFilePath = unzipFilePath + File.separator + fileName;
}
//创建解压缩文件保存的路径
File unzipFileDir = new File(unzipFilePath);
if (!unzipFileDir.exists() || !unzipFileDir.isDirectory())
{
unzipFileDir.mkdirs();
}
//开始解压
ZipEntry entry = null;
String entryFilePath = null, entryDirPath = null;
File entryFile = null, entryDir = null;
int index = 0, count = 0, bufferSize = 1024;
byte[] buffer = new byte[bufferSize];
BufferedInputStream bis = null;
BufferedOutputStream bos = null;
ZipFile zip = new ZipFile(zipFile);
EnumerationZipEntry entries = (EnumerationZipEntry)zip.entries();
//循环对压缩包里的每一个文件进行解压
while(entries.hasMoreElements())
{
entry = entries.nextElement();
//构建压缩包中一个文件解压后保存的文件全路径
entryFilePath = unzipFilePath + File.separator + entry.getName();
//构建解压后保存的文件夹路径
index = entryFilePath.lastIndexOf(File.separator);
if (index != -1)
{
entryDirPath = entryFilePath.substring(0, index);
}
else
{
entryDirPath = "";
}
entryDir = new File(entryDirPath);
//如果文件夹路径不存在，则创建文件夹
if (!entryDir.exists() || !entryDir.isDirectory())
{
entryDir.mkdirs();
}
//创建解压文件
entryFile = new File(entryFilePath);
if (entryFile.exists())
{
//检测文件是否允许删除，如果不允许删除 ， 将会抛出SecurityException
SecurityManager securityManager = new SecurityManager();
securityManager.checkDelete(entryFilePath);
//删除已存在的目标文件
entryFile.delete();
}
//写入文件
bos = new BufferedOutputStream(new FileOutputStream(entryFile));
bis = new BufferedInputStream(zip.getInputStream(entry));
while ((count = bis.read(buffer, 0, bufferSize)) != -1)
{
bos.write(buffer, 0, count);
}
bos.flush();
bos.close();
}
}
public static void main(String[] args)
{
String zipPath = "d:\\ziptest\\zipPath";
String dir = "d:\\ziptest\\rawfiles";
String zipFileName = "test.zip";
try
{
zip(dir, zipPath, zipFileName);
}
catch (Exception e)
{
e.printStackTrace();
}
String zipFilePath = "D:\\ziptest\\zipPath\\test.zip";
String unzipFilePath = "D:\\ziptest\\zipPath";
try
{
unzip(zipFilePath, unzipFilePath, true);
}
catch (Exception e)
{
e.printStackTrace();
}
}
}
关于Java的解压缩的代码？package com.javatest.techzero.gui;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.zip.ZipEntry;
import java.util.zip.ZipFile;
import java.util.zip.ZipInputStream;

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