使用java,自带的zip压缩的zip包用好压这类压缩软件都能打开，但是使用windows自带的资源管理器打开以后是空。压缩的代码如下
public final class ZipUtil {
private static byte[] buffer = new byte[1024 * 10];
private ZipUtil() {
// empty
}
/**
* 压缩文件
*
* @param filePath
* 待压缩的文件路径
* @return 压缩后的文件
*/
public static File zip(String filePath) {
File target = null;
File source = new File(filePath);
if (source.exists()) {
// 压缩文件名=源文件名.zip
String zipName = source.getName() + ".zip";
target = new File(source.getParent(), zipName);
if (target.exists()) {
target.delete(); // 删除旧的文件
}
FileOutputStream fos = null;
ZipOutputStream zos = null;
try {
fos = new FileOutputStream(target);
zos = new ZipOutputStream(new BufferedOutputStream(fos));
// 添加对应的文件Entry
addEntry("/", source, zos);
} catch (IOException e) {
throw new RuntimeException(e);
} finally {
IOUtil.closeQuietly(zos, fos);
}
}
return target;
}
/**
* 扫描添加文件Entry
*
* @param base
* 基路径
*
* @param source
* 源文件
* @param zos
* Zip文件输出流
* @throws IOException
*/
private static void addEntry(String base, File source, ZipOutputStream zos)
throws IOException {
// 按目录分级，形如：/aaa/bbb.txt
String entry = base + source.getName();
if (source.isDirectory()) {
for (File file : source.listFiles()) {
// 递归列出目录下的所有文件，添加文件Entry
addEntry(entry + "/", file, zos);
}
} else {
FileInputStream fis = null;
BufferedInputStream bis = null;
try {
fis = new FileInputStream(source);
bis = new BufferedInputStream(fis, buffer.length);
int read = 0;
zos.putNextEntry(new ZipEntry(entry));
while ((read = bis.read(buffer, 0, buffer.length)) != -1) {
zos.write(buffer, 0, read);
}
zos.closeEntry();
} finally {
IOUtil.closeQuietly(bis, fis);
}
}
}
/**
* 解压文件
*
* @param filePath
* 压缩文件路径
*/
public static void unzip(String filePath) {
File source = new File(filePath);
if (source.exists()) {
ZipInputStream zis = null;
BufferedOutputStream bos = null;
try {
zis = new ZipInputStream(new FileInputStream(source));
ZipEntry entry = null;
while ((entry = zis.getNextEntry()) != null && !entry.isDirectory()) {
File target = new File(source.getParent(), entry.getName());
if (!target.getParentFile().exists()) {
// 创建文件父目录
target.getParentFile().mkdirs();
}
// 写入文件
bos = new BufferedOutputStream(new FileOutputStream(target));
int read = 0;
while ((read = zis.read(buffer, 0, buffer.length)) != -1) {
bos.write(buffer, 0, read);
}
bos.flush();
}
zis.closeEntry();
} catch (IOException e) {
throw new RuntimeException(e);
} finally {
IOUtil.closeQuietly(zis, bos);
}
}
}
