關於java zip 打包用的場景還是有不少，包括在歸檔的時候，還有就是在提交數據的時候，一般都會採用這種方式。但是這裏面最麻煩的就是java亂碼的問題。
解決亂碼的問題主要是引用apache的包ant.jar。然後注意下面紅色代碼部分，java自帶的包中也有這兩個類。如果亂碼最好是採用apache的這兩個類。這樣纔會有設置編碼的 zos.setEncoding("gbk")這個方法。這樣就可解決java zip 打包的知碼問題。
下面是演示的java代碼:
import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.ArrayList;
import java.util.Enumeration;
import java.util.List;
import java.util.zip.ZipFile;
//這裏注意不能採用java下面的類包，不然沒有設置編碼的方法
import org.apache.tools.zip.ZipEntry;
import org.apache.tools.zip.ZipOutputStream;
/**
* @Copyright @ 2012 All right reserved
* @version 創建時間：Created on 2012-12-19
* @author 作者：Create by www.360buyli.com
* @Email: [email protected]
* @description eclipse註釋模板
*/
public class ZipUtil {
public static final String ZIP_FILENAME = ""; // 需要解壓縮的文件名
public static final String ZIP_DIR = ""; // 需要壓縮的文件夾
public static final String UN_ZIP_DIR = ""; // 要解壓的文件目錄
public static final int BUFFER = 1024; // 緩存大小
public static void main(String[] args) {
try {
zipFile("F:\\page","F:\\page\\demo.zip");
} catch (Exception e) {
e.printStackTrace();
}
}
public static void zipFile(String baseDir, String fileName)
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.setEncoding("gbk");
zos.close();
}
private static String getAbsFileName(String baseDir, File realFileName) {
File real = realFileName;
File base = new File(baseDir);
String ret = real.getName();
while (true) {
real = real.getParentFile();
if (real == null)
break;
if (real.equals(base))
break;
else
ret = real.getName() + "/" + ret;
}
return ret;
}
private static List getSubFiles(File baseDir) {
List ret = new ArrayList();
File[] tmp = baseDir.listFiles();
for (int i = 0; i < tmp.length; i++) {
if (tmp[i].isFile())
ret.add(tmp[i]);
if (tmp[i].isDirectory())
ret.addAll(getSubFiles(tmp[i]));
}
return ret;
}
public static void upZipFile() throws Exception {
ZipFile zfile = new ZipFile(ZIP_FILENAME);
Enumeration zList = zfile.entries();
ZipEntry ze = null;
byte[] buf = new byte[1024];
while (zList.hasMoreElements()) {
ze = (ZipEntry) zList.nextElement();
if (ze.isDirectory()) {
File f = new File(ZIP_DIR + ze.getName());
f.mkdir();
continue;
}
OutputStream os = new BufferedOutputStream(new FileOutputStream(
getRealFileName(ZIP_DIR, ze.getName())));
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();
}
zfile.close();
}
public static File getRealFileName(String baseDir, String absFileName) {
String[] dirs = absFileName.split("/");
File ret = new File(baseDir);
if (dirs.length > 1) {
for (int i = 0; i < dirs.length - 1; i++) {
ret = new File(ret, dirs[i]);
}
if (!ret.exists())
ret.mkdirs();
ret = new File(ret, dirs[dirs.length - 1]);
return ret;
}
return ret;
}
public static void deleteDirFile(String path) {
File file = new File(path);
if (file.isDirectory()) { // 如果是目錄，先遞歸刪除
String[] list = file.list();
for (int i = 0; i < list.length; i++) {
deleteDirFile(path + "\\" + list[i]); // 先刪除目錄下的文件
}
}
file.delete();
}
public static String newFolder(String dir) {
java.io.File myFilePath = new java.io.File(dir);
if (myFilePath.isDirectory()) {
} else {
myFilePath.mkdirs();
}
return dir;
}
public static String getFileNames(String path) {
File file = new File(path); // get file list where the path has
File[] array = file.listFiles(); // 獲得文件列表
String pdfNames = "";
for (int i = 0; i < array.length; i++) {
if (array[i].isFile()) {
if (array[i].getName().endsWith(".pdf")) { // 獲得pdf文件名稱
pdfNames += array[i].getName().substring(0,
array[i].getName().length() - 4)
+ ",";
}
}
}
if (pdfNames.length() > 0) {
pdfNames.substring(0, pdfNames.length() - 1);
}
return pdfNames;
}
public static void copyFile(String oldPath, String newPath) {
try {
int bytesum = 0;
int byteread = 0;
File oldfile = new File(oldPath);
if (oldfile.exists()) { // 文件存在時
InputStream inStream = new FileInputStream(oldPath); // 讀入原文件
FileOutputStream fs = new FileOutputStream(newPath);
byte[] buffer = new byte[1444];
while ((byteread = inStream.read(buffer)) != -1) {
bytesum += byteread; // 字節數文件大小
fs.write(buffer, 0, byteread);
}
inStream.close();
}
} catch (Exception e) {
System.out.println("copy file error!");
e.printStackTrace();
}
}
public static boolean fileExist(String fileNames, String pdfName) {
boolean flag = false;
if (!"".equals(fileNames)) {
String[] nameArr = fileNames.split(",");
for (int i = 0; i < nameArr.length; i++) {
if (pdfName.equals(nameArr[i])) { // 如果文件名相同則執行拷貝操作(拷貝到zip目錄準備打包)
flag = true;
break;
}
}
}
return flag;
}
public static void deleteFileAndDir(String path) {
File file = new File(path);
File[] array = file.listFiles();
for (int i = 0; i < array.length; i++) {
if (array[i].isFile()) {
array[i].delete();
} else if (array[i].isDirectory()) {
deleteDirFile(array[i].getPath());
}
}
}
}