zip压缩

lizhanwei

2020-03-31 cb9e5e684780d8e0abc5820ac285aa95baca1cc0

zip压缩

 app/src/main/java/safeluck/drive/evaluation/util/Utils.java

@@ -10,6 +10,9 @@
import com.anyun.exam.lib.util.ByteUtil;
import com.safeluck.aykj.utils.BytesUtils;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.math.BigDecimal;
import java.security.SecureRandom;
import java.text.ParseException;
@@ -23,6 +26,9 @@
import java.util.Random;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import java.util.zip.ZipEntry;
import java.util.zip.ZipFile;
import java.util.zip.ZipOutputStream;

import javax.crypto.Cipher;
import javax.crypto.SecretKey;
@@ -481,4 +487,58 @@
        long utcTime = date.getTime()+8*60*60*1000;
        return utcTime;
    }

    public static void zipFolder(String srcFileString,String zipFileString) throws Exception{
        //创建zip
        ZipOutputStream outZip = new ZipOutputStream(new FileOutputStream(zipFileString));

        //创建文件
        File file = new File(srcFileString);
        //压缩
        System.out.println("----->"+file.getParent()+"==="+file.getAbsolutePath());
        zipFiles(file.getParent()+File.separator,file.getName(),outZip);
        outZip.finish();
        outZip.close();
    }

    /**
     * 压缩文件
     * @param folderString
     * @param fileString
     * @param outZip
     */
    private static void zipFiles(String folderString, String fileString, ZipOutputStream outZip)
    throws Exception{
        System.out.println("folderString="+folderString+ "\n" +
                "fileString:" + fileString + "\n==========================");
        if (outZip == null){
            return;
        }
        File file = new File(folderString + fileString);
        if (file.isFile()){
            ZipEntry zipEntry = new ZipEntry(fileString);
            FileInputStream fileInputStream = new FileInputStream(file);
            outZip.putNextEntry(zipEntry);
            int len = 0;
            byte[] buffer = new byte[1024];
            while ((len=fileInputStream.read(buffer))!=-1){
                outZip.write(buffer,0,len);
            }
            outZip.closeEntry();
        }else{
            //文件夹
            String []fileList = file.list();
            //没有子文件的压缩
            if (fileList.length<=0){
                ZipEntry zipEntry = new ZipEntry(fileString+File.separator);
                outZip.putNextEntry(zipEntry);
                outZip.closeEntry();
            }else{
                for (int i = 0; i < fileList.length; i++) {
                    zipFiles(folderString+fileString+"/",fileList[i],outZip);
                }
            }
        }

    }
}