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  • 文件与流,课后作业压缩文件

    Project

    压缩文件代码:

    //信1605-2 20163576 蔡逸飞;

    package haha;

     

    import java.io.File;

    import java.io.FileInputStream;

    import java.io.FileNotFoundException;

    import java.io.FileOutputStream;

    import java.io.IOException;

    import java.util.zip.ZipEntry;

    import java.util.zip.ZipOutputStream;

     

    public class tiaoshi

    {

             private void a(String filename,File inputfile) throws Exception

             {

                      ZipOutputStream out=new ZipOutputStream(new FileOutputStream(filename));

                      zip(out,inputfile,"");

                      System.out.println("压缩中...");

                      out.close();

             }

             private void zip(ZipOutputStream out,File f,String base) throws Exception

             {

                      if(f.isDirectory())

                      {

                              File[] f1=f.listFiles();

                              out.putNextEntry(new ZipEntry(base+"/"));

                              base=base.length()==0?"":base+"/";

                              for(int i=0;i<f1.length;i++)

                              {

                                       zip(out,f1[i],base+f1[i]);

                              }

                      }

                      else

                      {

                              out.putNextEntry(new ZipEntry(base));

                              FileInputStream in=new FileInputStream(f);

                              int b;

                              System.out.println(base);

                              while((b=in.read())!=-1)

                              {

                                       out.write(b);

                              }

                              in.close();

                      }

             }

             public static void main(String temp[])

             {

                      tiaoshi haha=new tiaoshi();

                      try

                      {

                              haha.a("d:/haha.zip",new File("d:/haha"));

                              System.out.println("压缩完成");

                      }

                      catch(Exception e)

                      {

                             

                      }

             }

    }

    截图:

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  • 原文地址:https://www.cnblogs.com/CHAHA123/p/7786536.html
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