tj_sfj/sfj/DA/util/ZipFile.java

package com.api.sfj.DA.util;//package com.api.sfj.DA.util;

import org.apache.tools.zip.ZipEntry;
import org.apache.tools.zip.ZipOutputStream;

import java.io.BufferedInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.util.Properties;
import java.util.zip.CRC32;
import java.util.zip.CheckedOutputStream;

/**
 * 文件压缩
 * zip
 */
public class ZipFile {
//    public static void main(String[] args)
//            throws Exception {
//        File f = new File("D:\\WEAVER\\20200928144159323");
//        ZipOutputStream out = new ZipOutputStream(new FileOutputStream(
//                "d:\\WEAVER\\20200928144159323.zip"));
//        zip(out, f, null);
//        System.out.println("zip done");
//        out.close();
//    }
    public static void zip(ZipOutputStream out, File f, String base)
            throws Exception {
        System.out.println("zipping " + f.getAbsolutePath());
        if (f.isDirectory()) {
            File[] fc = f.listFiles();
            if (base != null)
                out.putNextEntry(new ZipEntry(base + "/"));
            base = base == null ? "" : base + "/";
            for (int i = 0; i < fc.length; i++) {
                zip(out, fc[i], base + fc[i].getName());
            }
        } else {
            out.putNextEntry(new ZipEntry(base));
            FileInputStream in = new FileInputStream(f);
            int b;
            while ((b = in.read()) != -1)
                out.write(b);
            in.close();
        }
    }

    /**
     * linux压缩文件
     * @param srcPathName
     * @param zipFileName
     */
    public static void zipu(String srcPathName, String zipFileName)
    {
        File file = new File(srcPathName);
        File zipFile = new File(zipFileName);
        if (!file.exists()) throw new RuntimeException(srcPathName + "不存在！");
        try
        {
            FileOutputStream fileOutputStream = new FileOutputStream(zipFile);
            CheckedOutputStream cos = new CheckedOutputStream(fileOutputStream, new CRC32());
            ZipOutputStream out = new ZipOutputStream(cos);
            Properties pro=System.getProperties();
            String osName=pro.getProperty("os.name");
            if("Linux".equals(osName)||"linux".equals(osName)){
                out.setEncoding("GBK");//设置文件名编码方式
            }else{
                out.setEncoding(System.getProperty("sun.jnu.encoding"));//设置文件名编码方式
            }

            String basedir = "";
            compress(file, out, basedir);
            out.close();
        }
        catch (Exception e)
        {
            throw new RuntimeException(e);
        }
    }

    /*
     * inputFileName 输入一个文件夹
     * zipFileName 输出一个压缩文件夹
     */
    private static void compress(File file, ZipOutputStream out, String basedir)
    {
        /* 判断是目录还是文件 */
        if (file.isDirectory())
        {
            // System.out.println("压缩：" + basedir + file.getName());
            compressDirectory(file, out, basedir);
        }
        else
        {
            // System.out.println("压缩：" + basedir + file.getName());
            compressFile(file, out, basedir);
        }
    }

    /** 压缩一个目录 */
    private static void compressDirectory(File dir, ZipOutputStream out, String basedir)
    {
        if (!dir.exists()) return;

        File[] files = dir.listFiles();
        for (int i = 0; i < files.length; i++)
        {
            /* 递归 */
            compress(files[i], out, basedir + dir.getName() + "/");
        }
    }

    /** 压缩一个文件 */
    private static void compressFile(File file, ZipOutputStream out, String basedir)
    {
        if (!file.exists())
        {
            return;
        }
        try
        {
            BufferedInputStream bis = new BufferedInputStream(new FileInputStream(file));
            ZipEntry entry = new ZipEntry(basedir + file.getName());
            Properties pro=System.getProperties();
            String osName=pro.getProperty("os.name");
            if("Linux".equals(osName)||"linux".equals(osName)) {
                entry.setUnixMode(644);
            }
            out.putNextEntry(entry);
            int count;
            byte data[] = new byte[8192];
            while ((count = bis.read(data, 0, 8192)) != -1)
            {
                out.write(data, 0, count);
            }
            bis.close();
        }
        catch (Exception e)
        {
            throw new RuntimeException(e);
        }
    }
}