public void writeblob() throws IOException {
ZipOutputStream out = new ZipOutputStream(new FileOutputStream("c://test2.zip"));
File f = new File("c://abc.doc");
FileInputStream in = new FileInputStream(f);
byte a[] = null; // **将测试文件读入此字节数组
int flength = (int) f.length(); // **读入文件的字节长度
System.out.println("file length::" + flength);
a = new byte[flength];
int i = 0;
int itotal = 0;
// 将文件读入字节数组
for (; itotal < flength; itotal = i + itotal) {
// in.read
i = in.read(a, itotal, flength - itotal);
}
out.putNextEntry(new org.apache.tools.zip.ZipEntry("test2"));
out.write(a);
in.close();
out.close();
}
/**
* 将目录压缩到ZIP输出流
*
* @param dirPath 目录路径
* @param fileDir 文件信息
* @param zouts 输出流
*/
public static void zipDirectoryToZipFile(String dirPath, File fileDir, ZipOutputStream zouts) {
if (fileDir.isDirectory()) {
File[] files = fileDir.listFiles();
// 空的文件夹
if (files.length == 0) {
// 目录信息
ZipEntry entry = new ZipEntry(getEntryName(dirPath, fileDir));
try {
zouts.putNextEntry(entry);
zouts.closeEntry();
} catch (Exception e) {
e.printStackTrace();
}
return;
}
for (File file : files) {
if (file.isFile()) {
// 如果是文件，则调用文件压缩方法
FileUtils.zipFilesToZipFile(dirPath, file, zouts);
} else {
// 如果是目录，则递归调用
FileUtils.zipDirectoryToZipFile(dirPath, file, zouts);
}
}
}
}
/**
* 将文件压缩到ZIP输出流
*
* @param dirPath 目录路径
* @param file 文件
* @param zouts 输出流
*/
public static void zipFilesToZipFile(String dirPath, File file, ZipOutputStream zouts) {
FileInputStream fin = null;
ZipEntry entry = null;
// 创建复制缓冲区
byte[] buf = new byte[4096];
int readByte = 0;
if (file.isFile()) {
try {
// 创建一个文件输入流
fin = new FileInputStream(file);
// 创建一个ZipEntry
entry = new ZipEntry(getEntryName(dirPath, file));
// 存储信息到压缩文件
zouts.putNextEntry(entry);
// 复制字节到压缩文件
while ((readByte = fin.read(buf)) != -1) {
zouts.write(buf, 0, readByte);
}
zouts.closeEntry();
fin.close();
System.out.println("添加文件 " + file.getAbsolutePath() + " 到zip文件中!");
} catch (Exception e) {
e.printStackTrace();
}
}
}
/**
* Adds a single file into the ZipOutputStream with specified entry name.
*
* @throws IOException
*/
private void addFileToZip(ZipOutputStream zipOut, UploadedFile file, String name)
throws IOException {
if (log.isTraceEnabled()) {
log.trace(">> addFileToZip(): " + file);
}
ZipEntry entry = new ZipEntry(name);
zipOut.putNextEntry(entry);
InputStream in = null;
try {
in = file.getInputstream();
FileUtils.copyStream(file.getInputstream(), zipOut);
zipOut.closeEntry();
} finally {
FileUtils.close(in);
}
// try (InputStream in = file.getInputstream()) {
// FileUtils.copyStream(file.getInputstream(), zipOut);
// zipOut.closeEntry();
// }
if (log.isTraceEnabled()) {
log.trace("<< addFileToZip()");
}
}
private byte[] zip(ZipOutputStream out, File f, String base) throws Exception {
// System.out.println("isDirectory===="+f.isDirectory());
// if (f.isDirectory()) {
// File[] fl = f.listFiles();
// out.putNextEntry(new org.apache.tools.zip.ZipEntry(base + "/"));
// base = base.length() == 0 ? "" : base + "/";
// for (int i = 0; i < fl.length; i++) {
// zip(out, fl[i], base + fl[i].getName());
// }
//
//
// } else {
out.putNextEntry(new org.apache.tools.zip.ZipEntry(base));
FileInputStream in = new FileInputStream(f);
// ZipInputStream zis = new ZipInputStream ();
/**
* int b; while ((b = in.read()) != -1) {
*
* <p>out.write(b); }
*
* <p>in.close();
*/
byte a[] = null; // **将测试文件读入此字节数组
int flength = (int) f.length(); // **读入文件的字节长度
System.out.println("file length::" + flength);
a = new byte[flength];
int i = 0;
int itotal = 0;
// 将文件读入字节数组
for (; itotal < flength; itotal = i + itotal) {
// in.read
i = in.read(a, itotal, flength - itotal);
}
System.out.println("压缩前的数字==" + a.length);
out.write(a);
byte[] comby = ZipFile.compressBytes(a);
System.out.println("压缩后的数字==" + comby.length);
byte[] decomby = ZipFile.decompressBytes(comby);
System.out.println("解压缩后的数字==" + decomby.length);
in.close();
out.close();
return a;
// }
}
private void zipFiles(List<String> srcfile, ByteArrayOutputStream bos) {
try {
ZipOutputStream out = new ZipOutputStream(bos);
out.setEncoding("GBK");
for (int i = 0; i < srcfile.size(); i++) {
out.putNextEntry(new ZipEntry(srcfile.get(i)));
out.write(bos.toByteArray());
}
out.closeEntry();
out.flush();
out.finish();
out.close();
} catch (IOException e) {
e.printStackTrace();
logger.error("ZipUtil zipFiles exception:" + e);
}
}
/**
* Adds a single file into the ZipOutputStream with specified entry name.
*
* @throws IOException
*/
private void addFileToZip(ZipOutputStream zipOut, ReshakaUploadedFile file, String name)
throws IOException {
if (log.isTraceEnabled()) {
log.trace(">> addFileToZip(): " + file);
}
ZipEntry entry = new ZipEntry(name);
zipOut.putNextEntry(entry);
try (InputStream in = file.getInputstream()) {
FileUtils.copyStream(file.getInputstream(), zipOut);
zipOut.closeEntry();
}
if (log.isTraceEnabled()) {
log.trace("<< addFileToZip()");
}
}
/**
* 压缩文件
*
* @param srcfile File[] 需要压缩的文件列表
* @param zipfile File 压缩后的文件
*/
public static void ZipFiles(java.io.File[] srcfile, java.io.File zipfile) {
byte[] buf = new byte[1024];
try {
ZipOutputStream out = new ZipOutputStream(new FileOutputStream(zipfile));
for (int i = 0; i < srcfile.length; i++) {
FileInputStream in = new FileInputStream(srcfile[i]);
out.putNextEntry(new ZipEntry(srcfile[i].getName()));
String str = srcfile[i].getName();
int len;
while ((len = in.read(buf)) > 0) {
out.write(buf, 0, len);
}
out.closeEntry();
in.close();
}
out.close();
System.out.println("压缩完成.");
} catch (IOException e) {
e.printStackTrace();
}
}
/**
* zip压缩功能. 压缩baseDir(文件夹目录)下所有文件，包括子目录
*
* @throws Exception
*/
public static void zipFile(String baseDir, String fileName, String comment) throws Exception {
List fileList = getSubFiles(new File(baseDir));
ZipOutputStream zos = new ZipOutputStream(new FileOutputStream(fileName));
ZipEntry ze = null;
byte[] buf = new byte[BUFFER];
int readLen = 0;
for (int i = 0; i < fileList.size(); i++) {
File f = (File) fileList.get(i);
ze = new ZipEntry(getAbsFileName(baseDir, f));
ze.setSize(f.length());
ze.setTime(f.lastModified());
zos.putNextEntry(ze);
InputStream is = new BufferedInputStream(new FileInputStream(f));
while ((readLen = is.read(buf, 0, BUFFER)) != -1) {
zos.write(buf, 0, readLen);
}
is.close();
}
zos.setComment(comment);
zos.close();
}
/** 压缩文件zip-Apache中ant所带包 @功能信息 : @参数信息 : @返回值信息 : @异常信息 : */
public static String getZip(List list, String path, String fileName) throws Exception {
byte[] buffer = new byte[1024];
String strZipName = fileName + ".zip";
ZipOutputStream out = new ZipOutputStream(new FileOutputStream(path + strZipName));
for (int j = 0; j < list.size(); j++) {
String name = list.get(j).toString();
FileInputStream fis = new FileInputStream(path + name);
out.putNextEntry(new ZipEntry(name));
int len;
while ((len = fis.read(buffer)) > 0) {
out.write(buffer, 0, len);
}
out.closeEntry();
fis.close();
new File(path + name).delete();
}
out.close();
String zipFilePath = path + strZipName;
// System.out.println(zipFilePath+"----");
// System.out.println("生成Demo.zip成功");
return zipFilePath;
}