Java編寫zip壓縮文件實例

 

package compress.javaio;

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

public class CompressFiles{

    /**
     * @param args
     * @throws IOException
     */
    public static void main(String[] args) throws IOException {
        // TODO Auto-generated method stub
        String sourPath=File.separator+"root"+File.separator+"ziptest02";
        File file=new File(sourPath);
        ZipOutputStream zipOut=null;//此對象需在主函數中建立
        zipOut=new ZipOutputStream(new FileOutputStream(File.separator+"root"+File.separator+"ziptest02.zip"));
        String str=file.getName();
        Recurrence(file,zipOut,str);//調用遞歸函數，判斷該當前項是目錄或者文件
        zipOut.close();
        System.out.println("壓縮流已經關閉");
    }

    private static void Recurrence(File file,ZipOutputStream zipOut,String str) throws IOException{
        //TODO 判斷該項是不是文件，如果文件，直接傳給Compress()函數處理
        if(file.isDirectory()){
            File files[]=file.listFiles();
            for(int i=0;i<files.length;i++){
                Recurrence(files[i],zipOut,str);
            }
        }else{
            Compress(file,zipOut,str);
        }
    }

    private static void Compress(File file,ZipOutputStream zipOut,String str) throws IOException {
        // TODO Auto-generated method stub
        InputStream input=null;
        input=new FileInputStream(file);
        //String str1=str+File.separator+file.getName();
        System.out.println("這次處理文件爲："+file.getPath());
        ZipEntry entry=new ZipEntry(file.getPath());
        zipOut.putNextEntry(entry);
        int temp=0;
        while((temp=input.read())!=-1){
            zipOut.write(temp);
        }
        input.close();
    }

}