1.注意事项

功能：指定文件夹目录，则会将该文件夹名称为新的压缩文件名称，新的压缩文件会在指定文件同级目录下，然后将该文件夹下的子文件和子文件夹都进行压缩打包。

2.示例代码：

package tmp.MavenTest;

import java.io.BufferedInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.Date;
import java.util.List;
import java.util.logging.Logger;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;

//定时将指定文件夹下的所有文件压缩
public class ZipFilesUtil {
	
	public static void compress(File f, String baseDir, ZipOutputStream zos){
		if(!f.exists()){
			System.out.println("待压缩的文件目录或文件"+f.getName()+"不存在");
			return;
		}
		

		File[] fs = f.listFiles();
		BufferedInputStream bis = null;  
		//ZipOutputStream zos = null; 
		byte[] bufs = new byte[1024*10];
		FileInputStream fis = null;
		
		
		try{
			//zos = new ZipOutputStream(new FileOutputStream(zipFile));
			for(int i=0; i<fs.length; i++){
				String fName =  fs[i].getName();
				System.out.println("压缩：" + baseDir+fName);     
				if(fs[i].isFile()){
					ZipEntry zipEntry = new ZipEntry(baseDir+fName);//
					zos.putNextEntry(zipEntry);	
					//读取待压缩的文件并写进压缩包里
					fis = new FileInputStream(fs[i]);
					bis = new BufferedInputStream(fis, 1024*10);
					int read = 0;
					while((read=bis.read(bufs, 0, 1024*10))!=-1){
						zos.write(bufs, 0, read);
					}
					//如果需要删除源文件，则需要执行下面2句
					//fis.close();
					//fs[i].delete();
				}
				else if(fs[i].isDirectory()){
					compress(fs[i], baseDir+fName+"/", zos);
				}
			}//end for
		}catch  (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} finally{
			//关闭流
			try {
				if(null!=bis)
					bis.close();
				//if(null!=zos)
					//zos.close();
				if(null!=fis)
					fis.close();
			} catch (IOException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}	
		}
		
	}

	public static void main( String[] args ) throws ParseException
    {

		String sourceFilePath = "D:\\Eclipse_XJ\\work_space\\WebProbe\\downloadfiles";
		
		File sourceDir = new File(sourceFilePath);
		File zipFile = new File(sourceFilePath+".zip");
		ZipOutputStream zos = null;
		try {
			 zos = new ZipOutputStream(new FileOutputStream(zipFile));
			 String baseDir = "downloadfiles/";
			 compress(sourceDir, baseDir, zos);
		} catch (FileNotFoundException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} finally{
			if(zos!=null)
				try {
					zos.close();
				} catch (IOException e) {
					// TODO Auto-generated catch block
					e.printStackTrace();
				}
		}
    }
	
}