import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.Enumeration;
import java.util.zip.CRC32;
import java.util.zip.CheckedOutputStream;
import org.apache.tools.zip.ZipEntry;
import org.apache.tools.zip.ZipFile;
public class ZipUtil {
public static final String FILE_SEPARATOR = System
.getProperty(
"file.separator");
/**
* 将指定的文件解压缩到指定的文件夹，解压后的文件夹目录和给定的压缩文件名相同.
*
* @param zipFilePath
* 全路径
* @param unZipDirectory
* 全路径
* @return 解压缩文件是否成功.
* @throws IOException
*/
public static boolean unZipFile(String zipFilePath, String unZipDirectory)
throws IOException {
ZipFile zipFile =
new ZipFile(zipFilePath);
Enumeration<?> entries = zipFile.getEntries();
if (zipFile ==
null) {
return false;
}
while (entries.hasMoreElements()) {
ZipEntry zipEntry = (ZipEntry) entries.nextElement();
File f =
new File(unZipDirectory + FILE_SEPARATOR
+ zipEntry.getName());
if (zipEntry.isDirectory())
{
if (!f.exists() && !f.mkdirs())
throw new IOException(
"Couldn't create directory: " + f);
}
else {
BufferedInputStream is =
null;
BufferedOutputStream os =
null;
try {
is =
new BufferedInputStream(zipFile
.getInputStream(zipEntry));
File destDir = f.getParentFile();
if (!destDir.exists() && !destDir.mkdirs()) {
throw new IOException(
"Couldn't create dir " + destDir);
}
os =
new BufferedOutputStream(
new FileOutputStream(f));
int b = -
1;
while ((b = is.read()) != -
1) {
os.write(b);
}
}
finally {
if (is !=
null)
is.close();
if (os !=
null)
os.close();
}
}
}
zipFile.close();
return true;
}
/**
* 压缩一个文件
* @param filePath
* @param zipPath
* @return
*/
public static boolean zipFile(String filePath,String zipPath){
BufferedReader in=
null;
org.apache.tools.zip.ZipOutputStream out=
null;
try{
File file=
new File(filePath);
in=
new BufferedReader(
new InputStreamReader(
new FileInputStream(filePath),
"ISO-8859-1"));
FileOutputStream f=
new FileOutputStream(zipPath);
CheckedOutputStream ch=
new CheckedOutputStream(f,
new CRC32());
out=
new org.apache.tools.zip.ZipOutputStream(
new BufferedOutputStream(ch));
int c;
out.putNextEntry(
new org.apache.tools.zip.ZipEntry(file.getName()));
while((c=in.read())!=-
1)
out.write(c);
}
catch(Exception e){
e.printStackTrace();
return false;
}
finally{
try {
if(in!=
null) in.close();
if(out!=
null) out.close();
}
catch (IOException e) {
e.printStackTrace();
}
}
return true;
}
/**
* 压缩一个目录
* @param dir
* @param zipPath
* @return
*/
public static boolean zipDirectory(String dir,String zipPath ){
org.apache.tools.zip.ZipOutputStream out=
null;
try{
File dirFile=
new File(dir);
if(!dirFile.isDirectory())
return false;
FileOutputStream fo=
new FileOutputStream(zipPath);
CheckedOutputStream ch=
new CheckedOutputStream(fo,
new CRC32());
out=
new org.apache.tools.zip.ZipOutputStream(
new BufferedOutputStream(ch));
zip(out,dirFile,
"");
}
catch(Exception e){
e.printStackTrace();
return false;
}
finally{
try {
if(out!=
null) out.close();
}
catch (IOException e) {
e.printStackTrace();
}
}
return true;
}
public static void zip(org.apache.tools.zip.ZipOutputStream out,File f,String base)
throws Exception{
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 is=
new FileInputStream(f);
BufferedInputStream in =
new BufferedInputStream(is);
int b;
while ((b=in.read()) != -
1)
out.write(b);
in.close();
}
}
public static void main(String[] args){
try {
unZipFile(
"D:\\portal_rtb.zip",
"D:\\wzb");
}
catch (Exception e) {
e.printStackTrace();
}
}
}
转载于:https://www.cnblogs.com/bilaisheng/p/10210962.html
相关资源：ZipUtil.java
