Java批量下载生成zip文件

import java.io.File;
import java.io.FileInputStream;import java.io.FileOutputStream;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;
public class ZipOutputStreamDemo {
    public static void main(String[] args) throws Exception {
       byte[] buffer = new byte[1024];
       //生成的ZIP文件名为Demo.zip
       String strZipName = "C:\\Demo.zip";
       ZipOutputStream out = new ZipOutputStream(new FileOutputStream(strZipName));
       //需要同时下载的两个文件result.txt，source.txt
       File[] fileArr = {new File("C:\\result.txt"),new File("C:\\source.txt")};
                   /*String fileStr = "C:\\result.txt;C:\\source.txt";
                     String arr[] = fileStr.split(",");      
                     File[] fileArr = new File[arr.length];      
                     for(int i=0;i<arr.length;i++){         
                       fileArr[i] = new File(arr[i]);    
                    }*/
       for(int i=0;i<fileArr.length;i++) {
           FileInputStream fis = new FileInputStream(fileArr[i]);
           out.putNextEntry(new ZipEntry(fileArr[i].getName()));
           int len;
           //读入需要下载的文件的内容，打包到zip文件
          while((len = fis.read(buffer))>0) {
           out.write(buffer,0,len);
          }
           out.closeEntry();
           fis.close();
       }
        out.close();
        System.out.println("生成Demo.zip成功");
    }
}