IO流 解密WORD文档

最近，做项目时遇到一个问题:对加密的文档进行解密

   我采取的是用IO流进行解密:

    java代码：

       int j=8;
        // TODO Auto-generated method stub
        FileInputStream fis;
        try {
            fis = new FileInputStream(new File("d:\\1M以下(500页)加密.docx"));
               byte[] responseBody =  new byte[fis.available()];
               int length;       
               length = fis.read(responseBody);   
               //新增如下一行
               byte[] neirong=new byte[length - j];
               //length = fis.read(charBody);  
               long key=159543903;
               byte b;           
               b=(byte)key;
               for(int x=0;x<length-j;x++)
               {
               neirong[x] = (byte)(responseBody[x+j]^b);
               }
               FileOutputStream fos = new FileOutputStream("d:\\d.doc");
               fos.write(neirong);
               fos.flush();
               fos.close();
        } catch (Exception e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }

非常珍贵，值得收藏

评论

1 楼 lvsenlin 2011-06-29  

   蓝领