/*
这个方法只用在windows中用服务器为Linux就不行
*/
package common.util;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;
public class ZipUtils {
/** 压缩单个文件*/
public static void zipFile(String filepath ,String zippath) {
//String s = UUID.randomUUID().toString();为了怕后面删除这个临时文件是删除到同一个文件
//这里filepath为要打包的文件夹的路径String filepath = ServletActionContext.getServletContext().getRealPath("upload/notice/"+s+"/");
//zippath为生成的zip包的路径String zippath = ServletActionContext.getServletContext().getRealPath("upload/notice/"+s+"/week-job.zip");这里生成的就是个week-job.zip包
//ServletActionContext.getServletContext().getRealPath();获得服务器地址
InputStream input = null;
ZipOutputStream zipOut = null;
try {
File file = new File(filepath);
File zipFile = new File(zippath);
input = new FileInputStream(file);
zipOut = new ZipOutputStream(new FileOutputStream(zipFile));
zipOut.putNextEntry(new ZipEntry(file.getName()));
int temp = 0;
while((temp = input.read()) != -1){
zipOut.write(temp);
}
System.out.println("zip "+filepath+" to "+zippath);
} catch (Exception e) {
e.printStackTrace();
}finally{
try {
input.close();
zipOut.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
/** 一次性压缩多个文件，文件存放至一个文件夹中*/
public static void zipMultiFile(String filepath ,String zippath) {
try {
File file = new File(filepath);// 要被压缩的文件夹
File zipFile = new File(zippath);
InputStream input = null;
ZipOutputStream zipOut = new ZipOutputStream(new FileOutputStream(zipFile));
if(file.isDirectory()){
File[] files = file.listFiles();
for(int i = 0; i < files.length; ++i){
input = new FileInputStream(files[i]);
zipOut.putNextEntry(new ZipEntry(file.getName() + File.separator + files[i].getName()));
int temp = 0;
while((temp = input.read()) != -1){
zipOut.write(temp);
}
input.close();
}
}else{//否则,则调用压缩单个文件的方法
zipFile(filepath, zippath);
}
zipOut.close();
} catch (Exception e) {
e.printStackTrace();
}
}
}
---------------------------------------------------------华丽的分割线----------------------------------------------------------
/*
兼容Linux的压缩方法
*/
/*
* Copyright 2017 BangChen Information Technology Ltd., Co.
* Licensed under the Apache License 2.0.
*/
package common.util;
import java.io.File;
import java.util.ArrayList;
import java.util.Collections;
import net.lingala.zip4j.core.ZipFile;
import net.lingala.zip4j.exception.ZipException;
import net.lingala.zip4j.model.ZipParameters;
import net.lingala.zip4j.util.Zip4jConstants;
/**
* 压缩工具类，依赖zip4j
*
* @author L.X <gugia@qq.com>
*/
public class CompressUtils {
/**
* 解压加密的压缩文件
*
* @param zipfile
* @param dest
* @param passwd
* @throws ZipException
*/
public void unZip(File zipfile, String dest, String passwd) throws ZipException {
ZipFile zfile = new ZipFile(zipfile);
// zfile.setFileNameCharset("GBK");//在GBK系统中需要设置
if (!zfile.isValidZipFile()) {
throw new ZipException("压缩文件不合法，可能已经损坏！");
}
File file = new File(dest);
if (file.isDirectory() && !file.exists()) {
file.mkdirs();
}
if (zfile.isEncrypted()) {
zfile.setPassword(passwd.toCharArray());
}
zfile.extractAll(dest);
}
/**
* 压缩文件且加密
*
* @param src
* @param dest
* @param isCreateDir
* @param passwd
*/
public void zip(String src, String dest, boolean isCreateDir, String passwd) {
File srcfile = new File(src);
//创建目标文件
String destname = buildDestFileName(srcfile, dest);
ZipParameters para = new ZipParameters();
para.setCompressionMethod(Zip4jConstants.COMP_DEFLATE);
para.setCompressionLevel(Zip4jConstants.DEFLATE_LEVEL_NORMAL);
if (passwd != null) {
para.setEncryptFiles(true);
para.setEncryptionMethod(Zip4jConstants.ENC_METHOD_STANDARD);
para.setPassword(passwd.toCharArray());
}
try {
ZipFile zipfile = new ZipFile(destname);
if (srcfile.isDirectory()) {
if (!isCreateDir) {
File[] listFiles = srcfile.listFiles();
ArrayList<File> temp = new ArrayList<>();
Collections.addAll(temp, listFiles);
zipfile.addFiles(temp, para);
}
zipfile.addFolder(srcfile, para);
} else {
zipfile.addFile(srcfile, para);
}
} catch (ZipException ex) {
System.out.println(ex.getMessage());
}
}
/**
* 目标文件名称
*
* @param srcfile
* @param dest
* @return
*/
public String buildDestFileName(File srcfile, String dest) {
if (dest == null) {//没有给出目标路径时
if (srcfile.isDirectory()) {
dest = srcfile.getParent() + File.separator + srcfile.getName() + ".zip";
} else {
String filename = srcfile.getName().substring(0, srcfile.getName().lastIndexOf("."));
dest = srcfile.getParent() + File.separator + filename + ".zip";
}
} else {
createPath(dest);//路径的创建
if (dest.endsWith(File.separator)) {
String filename;
if (srcfile.isDirectory()) {
filename = srcfile.getName();
} else {
filename = srcfile.getName().substring(0, srcfile.getName().lastIndexOf("."));
}
dest += filename + ".zip";
}
}
return dest;
}
/**
* 路径创建
*
* @param dest
*/
private void createPath(String dest) {
File destDir;
if (dest.endsWith(File.separator)) {
destDir = new File(dest);//给出的是路径时
} else {
destDir = new File(dest.substring(0, dest.lastIndexOf(File.separator)));
}
if (!destDir.exists()) {
destDir.mkdirs();
}
}
}
调用
CompressUtils compressUtils = new CompressUtils();
compressUtils.zip(zippaths[0], zipFilePath, true, null);