java处理文件之压缩

package com.chinadci.backendservice.common.dealFile;

import java.io.*;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;

public class FileToZip
{
  public static boolean fileToZip(String sourceFilePath,String zipFilePath,String fileName)
  {
    boolean flag = false;
    File sourceFile = new File(sourceFilePath);
    FileInputStream fis = null;
    BufferedInputStream bis = null;
    FileOutputStream fos = null;
    ZipOutputStream zos = null;

    if(sourceFile.exists() == false){
      System.out.println("待压缩的文件目录："+sourceFilePath+"不存在.");
    }else{
      try {
        File zipFile = new File(zipFilePath + "/" + fileName +".zip");
        if(zipFile.exists()){
          System.out.println(zipFilePath + "目录下存在名字为:" + fileName +".zip" +"打包文件.");
        }else{
          File[] sourceFiles = sourceFile.listFiles();
          if(null == sourceFiles || sourceFiles.length<1){
            System.out.println("待压缩的文件目录：" + sourceFilePath + "里面不存在文件，无需压缩.");
          }else{
            fos = new FileOutputStream(zipFile);
            zos = new ZipOutputStream(new BufferedOutputStream(fos));
            byte[] bufs = new byte[1024*10];
            for(int i=0;i<sourceFiles.length;i++){
              //创建ZIP实体，并添加进压缩包
              ZipEntry zipEntry = new ZipEntry(sourceFiles[i].getName());
              zos.putNextEntry(zipEntry);
              //读取待压缩的文件并写进压缩包里
              fis = new FileInputStream(sourceFiles[i]);
              bis = new BufferedInputStream(fis, 1024*10);
              int read = 0;
              while((read=bis.read(bufs, 0, 1024*10)) != -1){
                zos.write(bufs,0,read);
              }
            }
            flag = true;
          }
        }
      } catch (FileNotFoundException e) {
        e.printStackTrace();
        throw new RuntimeException(e);
      } catch (IOException e) {
        e.printStackTrace();
        throw new RuntimeException(e);
      } finally{
        //关闭流
        try {
          if(null != bis) bis.close();
          if(null != zos) zos.close();
        } catch (IOException e) {
          e.printStackTrace();
          throw new RuntimeException(e);
        }
      }
    }
    return flag;
  }
}

转自https://blog.youkuaiyun.com/u012768459/article/details/78875837