Java建立Zip压缩文件

    技术2022-05-11  130

    import java.io.*; import java.util.zip.*; class Zip {    public static void main(String args[]) throws IOException {      byte b[] = new byte[512];      ZipOutputStream zout = new ZipOutputStream(System.out);      for( int i = 0; i < args.length; i ++) {        InputStream in = new FileInputStream(args[i]);        ZipEntry e = new ZipEntry(args[i].replace(File.separatorChar,'/'));        zout.putNextEntry(e);        int len=0;        while((len=in.read(b)) != -1) {          zout.write(b,0,len);          }        zout.closeEntry();        print(e);        }      zout.close();      }         public static void print(ZipEntry e){      PrintStream err = System.err;      err.print( "added " + e.getName());      if (e.getMethod() == ZipEntry.DEFLATED) {        long size = e.getSize();        if (size > 0) {          long csize = e.getCompressedSize();          long ratio = ((size-csize)*100) / size;          err.println( " (deflated " + ratio + "%)");          }        else {          err.println( " (deflated 0%)");          }        }      else {        err.println( " (stored 0%)");        }      }    } v

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