一个关于解析ZIP流文件格式的问题

Question

你不应该调用bin.close();
如果你需要使用BufferedInputStream 
那么应该是包装在ZipInputStream 里面
ZipInputStream zip_In=new ZipInputStream(new BufferedInputStream(new FileInputStream(selfFile)));下面就不要使用BufferedInputStream 了，并且绝对不能调用in.close()

Answer 1

楼主，你的代码中while语句中似乎有句不需要，如下：
while((entry=zip_In.getNextEntry())!=null){

byte[] buff=new byte[4096];
BufferedInputStream bin=new BufferedInputStream(zip_In);
BufferedOutputStream bout=new BufferedOutputStream(new FileOutputStream(entry.getName()));
System.out.println("File: "+entry.getName()+" has been extracted!");
while(bin.read(buff,0,1)!=-1){
bout.write(buff,0,1);
}
bout.close();
bin.close();


zip_In.closeEntry();\\为何要closeEntry？？？？
}删掉它试试

Answer 2

import java.io.*;
import java.util.*;
import java.util.zip.*;public class ZipTool{
  static String zipName;
  private String ZIPUSER;
  private String ZIPPASS;  static String TEST="asd\n asdasd\na";  static private String fileName;  static byte[] buffer=new byte[1024];
  static int bytesRead;
  static String entryName;
  public static void main(String []args)throws IOException{
    boolean HELP=false;
    if(args.length==0){
      help();
      System.exit(0);
    }
    if(args.length>2 && args[0].equals("c")){
      HELP=true;
      zipName=args[1];      try{
        ZipOutputStream zip=new ZipOutputStream(new FileOutputStream(zipName));
        for(int i=2;i<args.length;i++){
          fileName=args[i];//          FileInputStream file=new FileInputStream(fileName);
          ZipEntry entry=new ZipEntry(fileName);
          zip.putNextEntry(entry);
/*
          while((bytesRead=file.read(buffer))!=-1)
            zip.write(buffer,0,bytesRead);
*/
          buffer=TEST.getBytes();
          bytesRead=buffer.length;
            zip.write(buffer,0,bytesRead);
          System.out.println(entry.getName()+" added.");
//          file.close();
        }
        zip.close();
        System.out.println(zipName+" created.");
      }catch(IOException ioe){ System.out.println(ioe);}
    }//解压，读压缩文件
    if(args.length==3 && args[0].equals("x")){
      HELP=true;
      zipName=args[1];
      entryName=args[2];
      try{
        ZipFile zip=new ZipFile(zipName);
        ZipEntry entry=zip.getEntry(entryName);
        if(entry!=null){
          InputStream entryStream=zip.getInputStream(entry);
          FileOutputStream file=new FileOutputStream("asd/"+entry.getName());
          while((bytesRead=entryStream.read(buffer))!=-1)
            //System.out.println(new String(buffer)+" "+bytesRead);
            file.write(buffer,0,bytesRead);
          System.out.println(entry.getName()+" extracted.");
          file.close();
          entryStream.close();
        }else System.out.println(entryName+" not found.");
        zip.close();
      }catch(IOException ioe){
         System.out.println(ioe);
       }
    }    if(args.length==2 && args[0].equals("l")){
      HELP=true;
      try{
        ZipFile zip=new ZipFile(args[1]);        for(Enumeration list=zip.entries();list.hasMoreElements();){
          ZipEntry entry=(ZipEntry)list.nextElement();
          System.out.println(entry.getName());
        }
        zip.close();
      }catch(IOException ioe){
         System.out.println(ioe);
       }
    }    if(!HELP) help();
  }  private static void help(){
    System.out.println("Usage:ZipTool<command><zip_file>[<file>...]");
  }
}