public class ZipFileUtil {
private final static int BUFFER=2048;
/**
* 解压zip文件
*
* @param zipFilePath
* zip文件绝对路径
* @param unzipDirectory
* 解压到的目录
* @throws Exception
*/
@SuppressWarnings("unchecked")
public static boolean unzip(String zipFilePath, String unzipDirectory)
throws Exception {
boolean flag=true;
try{
// 创建文件对象
File file = new File(zipFilePath);
// 创建zip文件对象
ZipFile zipFile = new ZipFile(file);
// 创建本zip文件解压目录
File unzipFile = new File(unzipDirectory + "/"
+ getSuffixName(file.getName()));
if (unzipFile.exists())
unzipFile.delete();
unzipFile.mkdir();
// 得到zip文件条目枚举对象
Enumeration zipEnum = zipFile.getEntries();
// 定义输入输出流对象
InputStream input = null;
OutputStream output = null;
// 定义对象
ZipEntry entry = null;
// 循环读取条目
while (zipEnum.hasMoreElements()) {
// 得到当前条目
entry = (ZipEntry) zipEnum.nextElement();
String entryName = new String(entry.getName());
// 用/分隔条目名称
String names[] = entryName.split("\\/");
int length = names.length;
String path = unzipFile.getAbsolutePath();
for (int v = 0; v < length; v++) {
if (v < length - 1) { // 最后一个目录之前的目录
path += "/" + names[v] + "/";
createDir(path);
} else { // 最后一个
if (entryName.endsWith("/")) // 为目录,则创建文件夹
createDir(unzipFile.getAbsolutePath() + "/" + entryName);
else { // 为文件,则输出到文件
input = zipFile.getInputStream(entry);
output = new FileOutputStream(new File(unzipFile
.getAbsolutePath()
+ "/" + entryName));
byte[] buffer = new byte[1024 * 8];
int readLen = 0;
while ((readLen = input.read(buffer, 0, 1024 * 8)) != -1)
output.write(buffer, 0, readLen);
// 关闭流
input.close();
output.flush();
output.close();
}
}
}
}}catch(Exception e){
flag=false;
}
return flag;
}
/**
* 创建目录
*
* @param path
* 目录绝对路径名
*/
static void createDir(String path) {
File dir = new File(path);
if (dir.exists() == false)
dir.mkdir();
}
/**
* 取得文件名,不包含后缀名
*
* @param name
* 完整文件名
www.atcpu.com * @return 文件名(不包含后缀名)
*/
static String getSuffixName(String name) {
return name.substring(0, name.lastIndexOf("."));
}
/**
*
* 压缩多个文件
*
* @param zipFileName
* 压缩后的文件名
*
* @param inputFiles 待压缩的文件列表
*
*/
public static boolean zipFile(String zipFileName, List<File> inputFiles){
boolean test = true;
try {
BufferedInputStream origin = null;
FileOutputStream dest = new FileOutputStream(zipFileName);
ZipOutputStream out = new ZipOutputStream(new BufferedOutputStream(
dest));
byte data[] = new byte[BUFFER];
for (int i = 0; i < inputFiles.size(); i++) {
File file=inputFiles.get(i);
FileInputStream fi = new FileInputStream(file);
origin = new BufferedInputStream(fi, BUFFER);
ZipEntry entry = new ZipEntry(file.getName());
out.putNextEntry(entry);
int count;
while ((count = origin.read(data, 0, BUFFER)) != -1) {
out.write(data, 0, count);
}
origin.close();
}
out.close();
} catch (Exception e) {
test = false;
e.printStackTrace();
}
return test;
}
/**
*
* 压缩多个文件
*
* @param zipFileName
* 压缩后的文件名
*
* @param inputFiles 待压缩的文件列表
*
*/
public static boolean zip(String zipFileName, List<String> inputFiles){
boolean test = true;
try {
BufferedInputStream origin = null;
FileOutputStream dest = new FileOutputStream(zipFileName);
ZipOutputStream out = new ZipOutputStream(new BufferedOutputStream(
dest));
byte data[] = new byte[BUFFER];
for (int i = 0; i < inputFiles.size(); i++) {
File file = new File(inputFiles.get(i));
FileInputStream fi = new FileInputStream(file);
origin = new BufferedInputStream(fi, BUFFER);
ZipEntry entry = new ZipEntry(file.getName());
out.putNextEntry(entry);
int count;
while ((count = origin.read(data, 0, BUFFER)) != -1) {
out.write(data, 0, count);
}
origin.close();
}
out.close();
} catch (Exception e) {
test = false;
e.printStackTrace();
}
return test;
}
}
摘自 zhu473105308