/**
* 压缩文件
* srcFileString 要压缩的文件或文件夹
* zipFileString 压缩完成的Zip路径
* 将文件进行压缩
*/
public static void ZipFolder(String srcFileString, String zipFileString) throws Exception {
//创建Zip包
java.util.zip.ZipOutputStream outZip = new java.util.zip.ZipOutputStream(new java.io.FileOutputStream(zipFileString));
//打开要输出的文件
java.io.File file = new java.io.File(srcFileString);
//压缩
ZipFiles(file.getParent() + java.io.File.separator, file.getName(), outZip);
//完成,关闭
outZip.finish();
outZip.close();
}
/**
* 压缩功能
*/
private static void ZipFiles(String folderString, String fileString, java.util.zip.ZipOutputStream zipOutputSteam) throws Exception {
if (zipOutputSteam == null)
return;
java.io.File file = new java.io.File(folderString + fileString);
//判断是不是文件
if (file.isFile()) {
java.util.zip.ZipEntry zipEntry = new java.util.zip.ZipEntry(fileString);
java.io.FileInputStream inputStream = new java.io.FileInputStream(file);
zipOutputSteam.putNextEntry(zipEntry);
int len;
byte[] buffer = new byte[4096];
while ((len = inputStream.read(buffer)) != -1) {
zipOutputSteam.write(buffer, 0, len);
}
zipOutputSteam.closeEntry();
} else {
//文件夹的方式,获取文件夹下的子文件
String fileList[] = file.list();
//如果没有子文件, 则添加进去即可
if (fileList.length <= 0) {
java.util.zip.ZipEntry zipEntry = new java.util.zip.ZipEntry(fileString + java.io.File.separator);
zipOutputSteam.putNextEntry(zipEntry);
zipOutputSteam.closeEntry();
}
//如果有子文件, 遍历子文件
for (String aFileList : fileList) {
ZipFiles(folderString, fileString + File.separator + aFileList, zipOutputSteam);
}
}
}
/**
* 解压缩功能.
* 将zipFile文件解压到folderPath目录下.
*
* @throws Exception
*/
public static int upZipFile(File zipFile, String folderPath) {
//public static void upZipFile() throws Exception{
ZipFile zfile = null;
try {
zfile = new ZipFile(zipFile);
Enumeration zList = zfile.entries();
ZipEntry ze = null;
byte[] buf = new byte[1024];
while (zList.hasMoreElements()) {
ze = (ZipEntry) zList.nextElement();
if (ze.isDirectory()) {
String dirstr = folderPath + "/" + ze.getName();
//dirstr.trim();
try {
dirstr = new String(dirstr.getBytes("8859_1"), "GB2312");
} catch (UnsupportedEncodingException e) {
System.out.println("3 e " + e.toString());
e.printStackTrace();
}
File f = new File(dirstr);
f.mkdir();
// System.out.println("f = " + f.getName());
continue;
}
File flocal = getRealFileName(folderPath, ze.getName());
// System.out.println("ze.getName() = " + ze.getName());
if (flocal == null) {
break;
}
OutputStream os = null;
try {
// System.out.println("flocal = " + flocal.exists() + " " + flocal.getAbsolutePath());
os = new BufferedOutputStream(new FileOutputStream(flocal));
} catch (FileNotFoundException e) {
System.out.println("4 e " + e.toString());
e.printStackTrace();
}
InputStream is = null;
try {
is = new BufferedInputStream(zfile.getInputStream(ze));
} catch (IOException e) {
System.out.println("5 e " + e.toString());
e.printStackTrace();
}
int readLen = 0;
try {
while ((readLen = is.read(buf, 0, 1024)) != -1) {
os.write(buf, 0, readLen);
}
os.flush();
is.close();
os.close();
} catch (IOException e) {
System.out.println("6 e " + e.toString());
e.printStackTrace();
}
}
try {
zfile.close();
} catch (IOException e) {
System.out.println("7 e " + e.toString());
e.printStackTrace();
}
} catch (Exception e) {
e.printStackTrace();
}
return 0;
}
/**
* 给定根目录，返回一个相对路径所对应的实际文件名.
*
* @param baseDir 指定根目录
* @param absFileName 相对路径名，来自于ZipEntry中的name
* @return java.io.File 实际的文件
*/
public static File getRealFileName(String baseDir, String absFileName) {
String[] dirs = absFileName.split("/");
for (String sss : dirs) {
// System.out.println("sss = " + sss);
}
File ret = new File(baseDir);
String substr = null;
if (dirs.length > 1) {
for (int i = 0; i < dirs.length - 1; i++) {
substr = dirs[i];
// System.out.println("substr = " + substr);
try {
//substr.trim();
substr = new String(substr.getBytes("8859_1"), "GB2312");
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
System.out.println("8 e " + e.toString());
return null;
}
ret = new File(ret, substr);
}
if (!ret.exists())
ret.mkdirs();
substr = dirs[dirs.length - 1];
try {
//substr.trim();
substr = new String(substr.getBytes("8859_1"), "GB2312");
} catch (UnsupportedEncodingException e) {
System.out.println("9 e " + e.toString());
e.printStackTrace();
return null;
}
ret = new File(ret, substr);
// System.out.println("getRealFileName ret = " + ret.getAbsolutePath());
return ret;
} else {
ret = new File(baseDir + "/" + absFileName);
}
// System.out.println("getRealFileName ret = " + ret.getAbsolutePath());
return ret;
}
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