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java实现可压缩或解压缩WAR文件

package utils;

import java.io.BufferedInputStream;

import java.io.BufferedOutputStream;

import java.io.File;

import java.io.FileInputStream;

import java.io.FileNotFoundException;

import java.io.FileOutputStream;

import java.io.IOException;

import java.io.OutputStream;

import java.util.Iterator;

import org.apache.commons.compress.archivers.ArchiveException;

import org.apache.commons.compress.archivers.ArchiveInputStream;

import org.apache.commons.compress.archivers.ArchiveOutputStream;

import org.apache.commons.compress.archivers.ArchiveStreamFactory;

import org.apache.commons.compress.archivers.jar.JarArchiveEntry;

import org.apache.commons.compress.archivers.zip.ZipArchiveEntry;

import org.apache.commons.compress.utils.IOUtils;

import org.apache.commons.io.FileUtils;

/**

* 处理WAR文件工具类。可压缩或解压缩WAR文件。

*

* @author Xiong Shuhong(shelltea@gmail.com)

*/

public class WarUtils {

public static void unzip(String warPath, String unzipPath) {

File warFile = new File(warPath);

try {

BufferedInputStream bufferedInputStream = new BufferedInputStream(new FileInputStream(warFile));

ArchiveInputStream in = new ArchiveStreamFactory().createArchiveInputStream(ArchiveStreamFactory.JAR,

bufferedInputStream);

JarArchiveEntry entry = null;

while ((entry = (JarArchiveEntry) in.getNextEntry()) != null) {

if (entry.isDirectory()) {

new File(unzipPath, entry.getName()).mkdir();

} else {

OutputStream out = FileUtils.openOutputStream(new File(unzipPath, entry.getName()));

IOUtils.copy(in, out);

out.close();

}

}

in.close();

} catch (FileNotFoundException e) {

System.err.println("未找到war文件");

} catch (ArchiveException e) {

System.err.println("不支持的压缩格式");

} catch (IOException e) {

System.err.println("文件写入发生错误");

}

}

public static void zip(String destFile, String zipDir) {

File outFile = new File(destFile);

try {

outFile.createNewFile();

BufferedOutputStream bufferedOutputStream = new BufferedOutputStream(new FileOutputStream(outFile));

ArchiveOutputStream out = new ArchiveStreamFactory().createArchiveOutputStream(ArchiveStreamFactory.JAR,

bufferedOutputStream);

if (zipDir.charAt(zipDir.length() - 1) != '/') {

zipDir += '/';

}

Iterator files = FileUtils.iterateFiles(new File(zipDir), null, true);

while (files.hasNext()) {

File file = files.next();

ZipArchiveEntry zipArchiveEntry = new ZipArchiveEntry(file, file.getPath().replace(

zipDir.replace("/", "\\"), ""));

out.putArchiveEntry(zipArchiveEntry);

IOUtils.copy(new FileInputStream(file), out);

out.closeArchiveEntry();

}

out.finish();

out.close();

} catch (IOException e) {

System.err.println("创建文件失败");

} catch (ArchiveException e) {

System.err.println("不支持的压缩格式");

}

}

}