Question

我想制作一个win zip软件。我正在阅读java stream classes和zip class，但我的想法无法在这个主题中发挥作用。请帮帮我怎么做这是我在大学里的一个小项目。我在java中创建了两个项目。

图书馆管理系统
诊断实验室管理

但老师说管理项目不允许。请帮帮我

我的程序代码

import java.io.*;
import java.util.*;
import java.util.zip.*;
import java.util.*;
import java.io.*;
class MyZip{
    FileInputStream fis;
    BufferedInputStream bis;
    FileOutputStream fos;
    BufferedOutputStream bos;
    ZipOutputStream zout;
    ZipEntry ze;

    public MyZip()throws IOException{
        Console con=System.console();

        System.out.println("How many directories do u want to compressed:");
        int no_file=Integer.parseInt(con.readLine());
        String inputFile[]=new String[no_file];
        File fileArray[]=new File[no_file];
        System.out.println("Enter the path of directories to be compressed:");
        for(int i=0;i<inputFile.length;i++){
            inputFile[i]=con.readLine();
            fileArray[i]=new File(inputFile[i]);
        }


        String outputFile="E:\\MyProgram\\MyZip\\MyZip.zip";
        fos=new FileOutputStream(outputFile);
        bos=new BufferedOutputStream(fos);
        zout=new ZipOutputStream(bos);
        zipFile(fileArray);
        zout.close();
        bos.close();
        fos.close();
        getZipEntry();
    }
    public void getZipEntry()throws IOException{
        ZipFile zf=new ZipFile("E:\\MyProgram\\MyZip\\MyZip.zip");
        System.out.println(zf.getName());//return name of zip file
        Enumeration e=zf.entries();
        while(e.hasMoreElements()){
            ZipEntry ze=(ZipEntry)e.nextElement();
            System.out.print(ze.getName()+"\t");//return name of entry
            System.out.print(ze.getSize()+"\t");//return uncompressed size
            System.out.print(ze.getCompressedSize());//return compressed size
            System.out.println();
        }
        zf.close();
    }
    public void zipFile(File farr[])throws IOException{
        for(File f:farr){
            if(f.isFile()){
                writeFile(f);
            }
            if(f.isDirectory()){
                File fileArray[]=f.listFiles();
                zipFile(fileArray);
            }
        }
    }
    public void writeFile(File f)throws IOException{
        ze=new ZipEntry(f.getPath());
        zout.putNextEntry(ze);
        fis=new FileInputStream(f);
        bis=new BufferedInputStream(fis);

        int ch;
        while((ch=bis.read())!=-1)
            zout.write(ch);

        bis.close();
        fis.close();
        zout.closeEntry();
        zout.flush();   

    }
    public static void main(String args[]) throws IOException{
        new MyZip();
    }
}

Answer 1

仅用于zip解压缩代码

import java.io.*;
import java.util.*;
import java.util.zip.*;
class MyUnZip
{
    FileInputStream fis;
    BufferedInputStream bis;
    ZipInputStream zis;
    FileOutputStream fos;
    BufferedOutputStream bos;
    public MyUnZip(String inputFile)throws IOException{
        String path1=inputFile.substring(0,inputFile.lastIndexOf('.'));
        //System.out.println(path1);

        fis=new FileInputStream(inputFile);
        bis=new BufferedInputStream(fis);
        zis=new ZipInputStream(bis);

        File outputFile;
        ZipEntry ze=null;

        while((ze=zis.getNextEntry())!=null){
            String str=ze.getName();
            //System.out.println(str);
            File fileName=new File(str);

            String path2=str.substring(str.indexOf('\\'),str.lastIndexOf('\\'));
            //System.out.println(path2);

            String path3=path1+path2;
            System.out.println(path3);

            File filePath=new File(path3);
            filePath.mkdirs();
            outputFile=new File(path3,fileName.getName());
            fos=new FileOutputStream(outputFile);
            bos=new BufferedOutputStream(fos);
            int ch;
            while((ch=zis.read())!=-1)
                bos.write(ch);
            bos.close();
            fos.close();
            zis.closeEntry();
        }
        zis.close();
    }
    public static void main(String args[]) throws IOException{
        Console con=System.console();
        System.out.println("Enter the path of zip file to be uncompressed:");
        String inputFile=con.readLine();
        new MyUnZip(inputFile);
    }
}

Java流类：如何制作win zip应用程序

1 个答案: