java打包导出（zip格式）
public class ZipUtil {
private static final String ZIP_NAME = "要生成的压缩包名字";
/**
* 压缩多个文件成一个zip文件
*
* <p>Title: compressionFile</p>
* <p>Description: </p>
* @time 下午1:48:38
* @param srcfile 源文件列表
* @param zipfile 压缩后的文件
*/
public static void compressionFile(File[] srcfile, File zipfile) {
byte[] buffer = new byte[1024];
try {
ZipOutputStream out = new ZipOutputStream(new FileOutputStream(zipfile));
for (int i = 0; i < ; i++) {
FileInputStream fileInputStream = new FileInputStream(srcfile[i]);
(new ZipEntry(srcfile[i].getName()));
int length;
while ((length = (buffer)) > 0) {
(buffer, 0, length);
}
();
();
}
();
} catch (Exception e) {
();
}
}
/**
* 解压缩
*
* <p>Title: uncompression</p>
* <p>Description: </p>
* @time 下午1:36:22
* @param zipfile 需要解压缩的文件
* @param descDir 解压后的目标目录
*/
@SuppressWarnings({ "resource", "rawtypes" })
public static void unompressionFile(File zipfile, String descDir) {
try {
ZipFile zipFile = new ZipFile(zipfile);
for (Enumeration entries = (); ();) {
ZipEntry entry = (ZipEntry) ();
String zipEntryName = ();
InputStream in = (entry);
OutputStream out = new FileOutputStream(descDir + zipEntryName);
byte[] buf1 = new byte[1024];
int len;
while ((len = (buf1)) > 0) {
(buf1, 0, len);
}
();
();
}
} catch (Exception e) {
();
}
}
/**
* 调用执行压缩
*
* <p>Title: excuteCompression</p>
* <p>Description: </p>
* @time 下午4:22:38
* @param filename压缩包名字
* @throws IOException
*/
public static void excuteCompression(HttpServletRequest request, HttpServletResponse response, String filename,
String pdfPath) throws IOException {
String zipPath = ().getServletContext().getRealPath(ZIP_NAME);
//创建文件夹
File folder = new File(zipPath);
if (!()) {
();
}
();
String filePath = pdfPath;
File file = new File(filePath);
// 获取文件夹下所有文件信息
File[] srcfile = ();
// 压缩包存放位置
File zipfile = new File(zipPath + "/" + filename + ".zip");
// 调用压缩方法
(srcfile, zipfile);
// 删除生成的文件夹和文件
String downPath = zipPath + "/" + filename + ".zip";
(downPath, response);
//删除源文件夹及其内容
(file);
//删除下载完的压缩包存储临时文件夹及其内容
File zfile = new File(zipPath);
(zfile);
}
/**
* <p>Title: excuteUncompression</p>
* <p>Description: </p>
* @time 上午9:50:26
* @param filePath
* 这里需要两个路径
* 首先传入一个要解压的文件所在路径
* 然后定义解压之后的存储路径
*/
public static void excuteUncompression(String filePath) {
//获取桌面绝对路径
File desktopDir = ().getHomeDirectory();
String desktopPath = ();
//需要解压缩的文件
File file = new File(filePath);
//解压后默认存放在桌面
String dir = desktopPath;
(file, dir);
}
/**
* 下载服务器下生成的文件
*
* <p>Title: download</p>
* <p>Description: </p>
* @time 下午2:51:34
* @param path
* @param response
*/
public static void download(String path, HttpServletResponse response) {
InputStream in = null;
OutputStream out = null;
try {
File file = new File(path);
/* 读取要下载的文件，保存到文件输入流 */
in = new FileInputStream(file);
/* 设置响应头，控制浏览器下载该文件 */
("UTF-8");
("application/octet-stream");
("Content-disposition",
"attachment; filename=" + new String(().getBytes("UTF-8"), "ISO8859-1"));
/* 创建缓冲输出流 */
out = new BufferedOutputStream(());
/* 定义缓冲区大小，开始读写 */
byte buffer[] = new byte[2048];
int len = 0;
while ((len = (buffer)) > 0) {
(buffer, 0, len);
}
/* 刷新缓冲区，写出 */
();
} catch (IOException ex) {
();
}
}
/**
* 删除文件夹及其下面的所有文件
*
* <p>Title: deleteAll</p>
* <p>Description: </p>
* @time 下午4:09:03
* @param file
*/
public static void deleteAll(File file) {
if (() || ().length == 0) {
();
} else {
for (File f : ()) {
// 递归删除文件夹下的每一个文件
deleteAll(f);
}
// 删除文件夹
();
}
}
}