java zip upzip 压缩 解压

package myself.test;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.util.zip.ZipEntry;
//import java.util.zip.ZipFile;
import java.util.zip.ZipInputStream;
import java.util.zip.ZipOutputStream;

public class ZipTool {

/**
* 压缩文件
*
* @param zipFileName
*            保存的压缩包文件路径
* @param inputFile
*            需要压缩的文件夹或者文件路径
* @throws Exception
*/
public void zip(String zipFileName, String filePath, boolean isDelete)
throws Exception {

zip(zipFileName, new File(filePath), isDelete);
}

public void zip(String zipFileName, File inputFile, boolean isDelete)
throws Exception {

ZipOutputStream out = new ZipOutputStream(new FileOutputStream(
zipFileName));

if (!inputFile.exists()) {
throw new FileNotFoundException("在指定路径未找到需要压缩的文件！");
}

zip(out, inputFile, "", isDelete);// 递归压缩方法
System.out.println("Zip Done.");
out.close();
}

/**
* 递归压缩方法
*
* @param out
*            压缩包输出流
* @param f
*            需要压缩的文件
* @param base
*            压缩的路径
* @throws Exception
*/
private void zip(ZipOutputStream out, File f, String base, boolean isDelete)
throws Exception {

System.out.println("Zipping : " + f.getPath()); // 记录日志，开始压缩
if (f.isDirectory()) { // 如果是文件夹，则获取下面的所有文件
File[] fl = f.listFiles();
out.putNextEntry(new ZipEntry(base + "/"));
base = base.length() == 0 ? "" : base + "/";
for (int i = 0; i < fl.length; i++) {
zip(out, fl[i], base + fl[i].getName(), isDelete);
}
} else { // 如果是文件，则压缩
out.putNextEntry(new ZipEntry(base)); // 生成下一个压缩节点
FileInputStream in = new FileInputStream(f); // 读取文件内容
int b;
while ((b = in.read()) != -1) {
out.write(b); // 写入到压缩包
}
in.close();
}
if (isDelete) {
f.delete();
}
}

public void unZip(String zipFilePath, String fileSavePath, boolean isDelete)
throws Exception {

if (!fileSavePath.endsWith("\\")) {
fileSavePath += "\\";
}

File file = new File(zipFilePath);
File savePath = new File(fileSavePath);

// 验证待解压文件是否存在
if (!file.exists()) {
throw new FileNotFoundException("在指定路径未找到ZIP压缩文件！");
}
// ZipFile zipFile=new ZipFile(file);

// 创建解压缩目录
if (!savePath.exists()) {
savePath.mkdirs();
}

ZipInputStream zis = new ZipInputStream(new FileInputStream(file));
FileOutputStream fos = null;
ZipEntry entry = null;
int b;

while ((entry = zis.getNextEntry()) != null) {
file = new File(fileSavePath + entry.getName());
if (entry.isDirectory()) {
// 目录
System.out.println("create dir : " + file.getPath());
file.mkdirs();
} else {
// 文件
System.out.println("create file: " + file.getPath());
fos = new FileOutputStream(file);
while ((b = zis.read()) != -1) {
fos.write(b);
}
fos.close();
}
}

zis.close();
if (isDelete) {
new File(zipFilePath).delete();
}

System.out.println("unZip Done.");

}

public static void main(String[] args) {

ZipTool cpr = new ZipTool();
try {
// cpr.zip("G:\\test.zip", "G:\\home", false);
cpr.unZip("G:\\test.zip", "G:\\homee", false);
} catch (Exception e) {
e.printStackTrace();
}

}
}