package com.osvue.win.app.utils;
import lombok.extern.slf4j.Slf4j;
import java.io.*;
import java.util.List;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;
@Slf4j
public class ZipUtil {
private static final int BUFFER_SIZE = 2 * 1024;
public static void toZip(String srcDir, OutputStream out, boolean KeepDirStructure)
throws RuntimeException{
long start = System.currentTimeMillis();
ZipOutputStream zos = null ;
try {
zos = new ZipOutputStream(out);
File sourceFile = new File(srcDir);
compress(sourceFile,zos,sourceFile.getName(),KeepDirStructure);
long end = System.currentTimeMillis();
log.info("压缩完成,耗时:{} ms",(end - start));
} catch (Exception e) {
throw new RuntimeException("zip error from ZipUtils",e);
}finally{
if(zos != null){
try {
zos.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
}
public static void toZip(List<File> srcFiles , OutputStream out)throws RuntimeException {
long start = System.currentTimeMillis();
ZipOutputStream zos = null ;
try {
zos = new ZipOutputStream(out);
for (File srcFile : srcFiles) {
byte[] buf = new byte[BUFFER_SIZE];
zos.putNextEntry(new ZipEntry(srcFile.getName()));
int len;
FileInputStream in = new FileInputStream(srcFile);
while ((len = in.read(buf)) != -1){
zos.write(buf, 0, len);
}
zos.closeEntry();
in.close();
}
long end = System.currentTimeMillis();
log.info("压缩完成,耗时:{} ms",(end - start));
} catch (Exception e) {
throw new RuntimeException("zip error from ZipUtils",e);
}finally{
if(zos != null){
try {
zos.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
}
private static void compress(File sourceFile, ZipOutputStream zos, String name,
boolean KeepDirStructure) throws Exception{
byte[] buf = new byte[BUFFER_SIZE];
if(sourceFile.isFile()){
zos.putNextEntry(new ZipEntry(name));
int len;
FileInputStream in = new FileInputStream(sourceFile);
while ((len = in.read(buf)) != -1){
zos.write(buf, 0, len);
}
zos.closeEntry();
in.close();
} else {
File[] listFiles = sourceFile.listFiles();
if(listFiles == null || listFiles.length == 0){
if(KeepDirStructure){
zos.putNextEntry(new ZipEntry(name + "/"));
zos.closeEntry();
}
}else {
for (File file : listFiles) {
if (KeepDirStructure) {
compress(file, zos, name + "/" + file.getName(),KeepDirStructure);
} else {
compress(file, zos, file.getName(),KeepDirStructure);
}
}
}
}
}
public static void main(String[] args) throws Exception {
FileOutputStream fos1= new FileOutputStream(new File("D:/temp/img/testZip.zip"));
ZipUtil.toZip("D:/workspace/company/文件/图标", fos1,true);
/*
List<File> fileList = new ArrayList<>();
fileList.add(new File("D:/Java/jdk1.7.0_45_64bit/bin/jar.exe"));
fileList.add(new File("D:/Java/jdk1.7.0_45_64bit/bin/java.exe"));
FileOutputStream fos2= new FileOutputStream(new File("c:/mytest02.zip"));
ZipUtils.toZip(fileList, fos2);*/
}
}