首先下載下列兩個jar
1.winzipaes.jar(http://code.google.com/p/winzipaes/) 這邊要抓20110222的版本，新的版本用法不同
接著寫一隻ZipUtil.java
如下
import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.ArrayList;
import java.util.Enumeration;
import java.util.List;
import org.apache.tools.zip.ZipEntry;
import org.apache.tools.zip.ZipFile;
import org.apache.tools.zip.ZipOutputStream;
import org.springframework.stereotype.Component;
import com.sdunicomsi.ICT.edu.foundation.base.ObjectAncestor;
import de.idyl.crypto.zip.AesZipFileDecrypter;
import de.idyl.crypto.zip.AesZipFileEncrypter;
import de.idyl.crypto.zip.impl.ExtZipEntry;
@Component("zipUtil")
public class ZipUtil extends ObjectAncestor {
public Boolean compress(String inFile, String outFile, String key)throws Exception {
Boolean flag = false;
ArrayList<String> fileList = new ArrayList<String>();
fileList.add(inFile);
compress(fileList, outFile,key);
flag = true;
return flag;
}
public Boolean compress(List<String> inFiles, String outFile, String key)throws Exception {
Boolean flag = false;
String tempFile = outFile;
if(null!=key&&!"".equals(key)){
tempFile = tempFile+"temp";
}
ArrayList<String> filePathList = new ArrayList<String>();
ArrayList<String> fileNameList = new ArrayList<String>();
if(inFiles!=null&&inFiles.size()>0){
File file = null;
for(String fileStr:inFiles){
file = new File(fileStr);
filePathList.add(file.getAbsolutePath());
fileNameList.add(file.getName());
}
makeZip(filePathList, fileNameList, tempFile);
if(null!=key&&!"".equals(key)){
File temp = new File(tempFile);
AesZipFileEncrypter enc = new AesZipFileEncrypter(outFile);
enc.addAll(temp, key);
enc.close();
temp.delete();
}
}
flag = true;
return flag;
}
public Boolean compress(String inDir, String outFile, String key,
Boolean ifSubDir) throws Exception{
System.out.println("--inDir--"+inDir);
System.out.println("--outFile--"+outFile);
Boolean flag = false;
String tempFile = outFile;
if(null!=key&&!"".equals(key)){
tempFile = tempFile+"temp";
}
makeZip(new File(inDir),tempFile,ifSubDir);
if(null!=key&&!"".equals(key)){
File temp = new File(tempFile);
AesZipFileEncrypter enc = new AesZipFileEncrypter(outFile);
enc.addAll(temp, key);
enc.close();
temp.delete();
}
flag = true;
return flag;
}
public Boolean uncompress(String inFile, String outDir, String key,
Boolean ifSubDir) throws Exception{
boolean flag = false;
if(key==null||"".equals(key)){
unZip(inFile, new File(outDir));
}else{
AesZipFileDecrypter zipFile = new AesZipFileDecrypter( new File(inFile) );
for(ExtZipEntry entry : zipFile.getEntryList()){
if(!ifSubDir){
String filename = entry.getName();
String[] strArray = filename.split(File.separator+File.separator);
if(strArray!=null&&strArray.length==1){
zipFile.extractEntry(entry,new File(outDir+File.separator+entry.getName()), key);
}
}else{
zipFile.extractEntry(entry,new File(outDir+File.separator+entry.getName()), key);
}
}
}
flag = true;
return flag;
}
private void unZip(String zipFilePath, File toUnzipFold)
throws IOException {
if (!toUnzipFold.exists()) {
toUnzipFold.mkdirs();
}
ZipFile zfile = new ZipFile(zipFilePath);
// zList包含了所有的檔夾、目錄資訊
Enumeration zList = zfile.getEntries();
byte[] buf = new byte[1024];
File tmpfile = null;
File tmpfold = null;
while (zList.hasMoreElements()) {
ZipEntry ze = (ZipEntry) zList.nextElement();
tmpfile = new File(toUnzipFold.getAbsolutePath() + File.separator
+ ze.getName());
if (ze.isDirectory()) {
continue;
} else {
tmpfold = tmpfile.getParentFile();
if (!tmpfold.exists()) {
tmpfold.mkdirs();
}
OutputStream os = new BufferedOutputStream(
new FileOutputStream(tmpfile.getAbsolutePath()));
InputStream is = new BufferedInputStream(zfile.getInputStream(ze));
int readLen = 0;
while ((readLen = is.read(buf, 0, 1024)) != -1) {
os.write(buf, 0, readLen);
}
is.close();
os.close();
}
}
}
private void makeZip(File fold, String outputZipFileName)
throws IOException {
makeZip(fold, outputZipFileName, false);
}
private void makeZip(File fold, String outputZipFileName,
boolean recursive) throws IOException {
if (fold.exists()) {
ArrayList<File> fileList = new ArrayList<File>();
listAllFile(fold, fileList, recursive);
ArrayList<String> filePathList = new ArrayList<String>();
ArrayList<String> fileNameList = new ArrayList<String>();
String tmpStr = null;
int basLen = fold.getAbsolutePath().length();
for (File f : fileList) {
tmpStr = f.getAbsolutePath();
filePathList.add(tmpStr);
fileNameList.add(tmpStr.substring(basLen+1, tmpStr.length()));
}
makeZip(filePathList, fileNameList, outputZipFileName);
}
}
private void listAllFile(File fold, ArrayList<File> fileList,
boolean recursive) {
File[] files = fold.listFiles();
for (File f : files) {
if (recursive && f.isDirectory()) {
listAllFile(f, fileList, recursive);
} else if(!f.isDirectory()){
fileList.add(f);
}
}
}
private void makeZip(ArrayList<String> filePathList,
ArrayList<String> fileNameList, String outputZipFileName)
throws IOException {
byte[] buf = new byte[1024];
File outputZipFile = new File(outputZipFileName);
File outputZipParentFile = outputZipFile.getParentFile();
if(!outputZipParentFile.exists()){
outputZipParentFile.mkdirs();
}
ZipOutputStream out = new ZipOutputStream(new FileOutputStream(outputZipFile));
int len = -1;
for (int i = 0; i < filePathList.size(); i++) {
if (filePathList.get(i) != null) {
FileInputStream in = new FileInputStream(filePathList.get(i));
out.putNextEntry(new org.apache.tools.zip.ZipEntry(fileNameList
.get(i)));
while ((len = in.read(buf)) > 0) {
out.write(buf, 0, len);
}
out.closeEntry();
in.close();
}
}
out.close();
}
public static void main(String args[]) throws Exception{
ZipUtil z = new ZipUtil();
//壓縮
// z.compress("f:/xj_pt_student.csv", "f:/csv.zip", "123");
// z.compress("f:/testk", "f:/testsub.zip", "",true);//無密碼，有子目錄
z.compress("f:/testk", "f:/ttt/tttttt/tt/testsubk.zip", "123",true);//有密碼，有子目錄
// z.compress("f:/testk", "f:/test.zip", "",false);//無密碼，無子目錄
// z.compress("f:/testk", "f:/testk.zip", "123",false);//無密碼，無子目錄
//解壓
// z.uncompress("f:/testsub.zip", "f:/testsub","",true);
// z.uncompress("f:/testsubk.zip", "f:/testsubk","123",true);
/
}因為我只需要將一個檔案做壓縮加密，但是上述的解壓縮會有錯誤所以我將他刪除後改成下列的
package com.util;
//import h----.elearn.util.*;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import de.idyl.crypto.zip.AesZipFileEncrypter;
import java.util.zip.ZipOutputStream;
public class ZipUtil {
public Boolean compress(String inFile, String outFile, String key) throws Exception {
Boolean flag = false;
ArrayList<String> fileList = new ArrayList<String>();
fileList.add(inFile);
compress(fileList, outFile, key);
flag = true;
return flag;
}
public Boolean compress(List<String> inFiles, String outFile, String key) throws Exception {
Boolean flag = false;
String tempFile = outFile;
if (null != key && !"".equals(key)) {
tempFile = tempFile + "temp";
}
ArrayList<String> filePathList = new ArrayList<String>();
ArrayList<String> fileNameList = new ArrayList<String>();
if (inFiles != null && inFiles.size() > 0) {
File file = null;
for (String fileStr : inFiles) {
file = new File(fileStr);
filePathList.add(file.getAbsolutePath());
fileNameList.add(file.getName());
}
makeZip(filePathList, fileNameList, tempFile);
if (null != key && !"".equals(key)) {
File temp = new File(tempFile);
AesZipFileEncrypter enc = new AesZipFileEncrypter(outFile);
enc.addAll(temp, key);
enc.close();
temp.delete();
}
}
flag = true;
return flag;
}
public Boolean compress(String inDir, String outFile, String key,
Boolean ifSubDir) throws Exception {
System.out.println("--inDir--" + inDir);
System.out.println("--outFile--" + outFile);
Boolean flag = false;
String tempFile = outFile;
if (null != key && !"".equals(key)) {
tempFile = tempFile + "temp";
}
makeZip(new File(inDir), tempFile, ifSubDir);
if (null != key && !"".equals(key)) {
File temp = new File(tempFile);
AesZipFileEncrypter enc = new AesZipFileEncrypter(outFile);
enc.addAll(temp, key);
enc.close();
temp.delete();
}
flag = true;
return flag;
}
private void makeZip(File fold, String outputZipFileName)
throws IOException {
makeZip(fold, outputZipFileName, false);
}
private void makeZip(File fold, String outputZipFileName,
boolean recursive) throws IOException {
if (fold.exists()) {
ArrayList<File> fileList = new ArrayList<File>();
listAllFile(fold, fileList, recursive);
ArrayList<String> filePathList = new ArrayList<String>();
ArrayList<String> fileNameList = new ArrayList<String>();
String tmpStr = null;
int basLen = fold.getAbsolutePath().length();
for (File f : fileList) {
tmpStr = f.getAbsolutePath();
filePathList.add(tmpStr);
fileNameList.add(tmpStr.substring(basLen + 1, tmpStr.length()));
}
makeZip(filePathList, fileNameList, outputZipFileName);
}
}
private void listAllFile(File fold, ArrayList<File> fileList,
boolean recursive) {
File[] files = fold.listFiles();
for (File f : files) {
if (recursive && f.isDirectory()) {
listAllFile(f, fileList, recursive);
} else if (!f.isDirectory()) {
fileList.add(f);
}
}
}
private void makeZip(ArrayList<String> filePathList,
ArrayList<String> fileNameList, String outputZipFileName)
throws IOException {
byte[] buf = new byte[1024];
File outputZipFile = new File(outputZipFileName);
File outputZipParentFile = outputZipFile.getParentFile();
if (!outputZipParentFile.exists()) {
outputZipParentFile.mkdirs();
}
ZipOutputStream out = new ZipOutputStream(new FileOutputStream(outputZipFile));
int len = -1;
for (int i = 0; i < filePathList.size(); i++) {
if (filePathList.get(i) != null) {
FileInputStream in = new FileInputStream(filePathList.get(i));
out.putNextEntry(new java.util.zip.ZipEntry(fileNameList.get(i)));
while ((len = in.read(buf)) > 0) {
out.write(buf, 0, len);
}
out.closeEntry();
in.close();
}
}
out.close();
}
public static void main(String args[]) throws Exception {
ZipUtil z = new ZipUtil();
z.compress("C:/test.inc", "c:/csv.zip", "123");
}
}
參考網頁
http://blog.163.com/qiangyongbin2000@126/blog/static/77517819201131313112820/
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