java压缩工具类

package com.sgcc.admin.common.utils;

import org.apache.commons.io.IOUtils;
import org.slf4j.LoggerFactory;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;

/**
 * @Description: 文件压缩处理类
 * @author 
 * @version v1.0
 * @CreateDate 2019年1月10日
 */
public class ZipUtils {
    private static org.slf4j.Logger logger = LoggerFactory.getLogger(ZipUtils.class);

    private ZipUtils(){
    }

    public static void doCompress(String srcFile, String zipFile) throws IOException {
        doCompress(new File(srcFile), new File(zipFile));
    }

    /**
     * 文件压缩
     * @param srcFile 目录或者单个文件
     * @param zipFile 压缩后的ZIP文件
     */
    public static void doCompress(File srcFile, File zipFile) throws IOException {
        //待压缩文件路径不存在
        if(!srcFile.exists()){
            logger.info("文件下载路径不存在!");
            return;
        }
        //压缩文件路径不存在，需要创建目录
        File dir = zipFile.getParentFile();
        if(!dir.exists()){
            dir.mkdirs();
        }
        ZipOutputStream out = null;
        try {
            out = new ZipOutputStream(new FileOutputStream(zipFile));
            doCompress(srcFile, out);
        }finally {
            IOUtils.closeQuietly(out);//记得关闭资源
        }
    }

    public static void doCompress(File file, ZipOutputStream out) throws IOException{
        doCompress(file, out, "");
    }

    public static void doCompress(File inFile, ZipOutputStream out, String dir) throws IOException {
        if ( inFile.isDirectory() ) {
            File[] files = inFile.listFiles();
            if (files!=null && files.length>0) {
                for (File file : files) {
                    String name = inFile.getName();
                    if (!"".equals(dir)) {
                        name = dir + File.separator + name;
                    }
                    ZipUtils.doCompress(file, out, name);//递归
                }
            }
        } else {
            ZipUtils.doZip(inFile, out, dir);
        }
    }

    /**
     * @Description: 压缩方法
     * @param inFile 待压缩文件，out 压缩流，dir 压缩文件路径
     * @return
     * @author 
     * @date 2019年1月10日
     */
    public static void doZip(File inFile, ZipOutputStream out, String dir) throws IOException {
        FileInputStream fis = null;
        try {
            String entryName = null;
            if (!"".equals(dir)) {
                entryName = dir + File.separator + inFile.getName();
            } else {
                entryName = inFile.getName();
            }
            ZipEntry entry = new ZipEntry(entryName);
            out.putNextEntry(entry);

            int len = 0 ;
            byte[] buffer = new byte[1024];
            fis = new FileInputStream(inFile);
            while ((len = fis.read(buffer)) > 0) {
                out.write(buffer, 0, len);
                out.flush();
            }
        }finally {
            IOUtils.closeQuietly(fis);//记得关闭资源
        }
    }

    public static void main(String[] args) throws IOException {
        doCompress("D:/logs", "D:/log11/log.zip");

    }

}