zip格式压缩和解压缩(支持中文和文件嵌套解压缩)

野性酷女 2022-09-18 05:43 224阅读 0赞

我在公司项目过程需要用到zip文件的压缩与解压的功能,于是自己研究了一下,找了一些,自己写了一个压缩和解压缩的代码,支持中文,可以文件嵌套(注意其中所用的类是ant.jar中的包中的类,我用的是1.6.0版本)

![ExpandedBlockStart.gif][] ![ContractedBlock.gif][] /\*\* \*/ /\*\*  
![InBlock.gif][] \*用于对指定源文件路径下的所有文件压缩到指定的文件中  
![InBlock.gif][] \* @param des String 需要压缩成的文件名  
![InBlock.gif][] \* @param src String 压缩文件源路径,可以是文件或文件夹  
![InBlock.gif][] \* @return boolean 如果压缩成功返回true，否则表示失败  
![ExpandedBlockEnd.gif][]\*/   
![ExpandedBlockStart.gif][]![ContractedBlock.gif][] public  static  boolean  File2Zip(String des, String src)  ... \{  
![InBlock.gif][]  
![InBlock.gif][]boolean success =true; //压缩成功标志  
![InBlock.gif][] File srcpath =new File(src);  
![InBlock.gif][] ZipOutputStream out =null;  
![ExpandedSubBlockStart.gif][]![ContractedSubBlock.gif][]try...\{  
![InBlock.gif][] out =new ZipOutputStream(new FileOutputStream(new File(  
![InBlock.gif][] des))); //创建压缩输出流  
![InBlock.gif][] out.setEncoding("gbk");  
![InBlock.gif][] compress(srcpath, out, ""); //开始压缩  
![ExpandedSubBlockEnd.gif][] \}  
![ExpandedSubBlockStart.gif][]![ContractedSubBlock.gif][]catch (FileNotFoundException ex) ...\{  
![InBlock.gif][] success =false;  
![ExpandedSubBlockEnd.gif][] \}  
![ExpandedSubBlockStart.gif][]![ContractedSubBlock.gif][]catch (IOException ex1) ...\{  
![InBlock.gif][] success =false;  
![ExpandedSubBlockEnd.gif][] \}  
![ExpandedSubBlockStart.gif][]![ContractedSubBlock.gif][]finally...\{  
![ExpandedSubBlockStart.gif][]![ContractedSubBlock.gif][]if (out !=null) ...\{  
![ExpandedSubBlockStart.gif][]![ContractedSubBlock.gif][]try...\{  
![InBlock.gif][] out.close();  
![ExpandedSubBlockEnd.gif][] \}  
![ExpandedSubBlockStart.gif][]![ContractedSubBlock.gif][]catch (IOException ex2) ...\{  
![ExpandedSubBlockEnd.gif][] \}  
![ExpandedSubBlockEnd.gif][] \}  
![ExpandedSubBlockEnd.gif][] \}  
![InBlock.gif][]return success;  
![ExpandedBlockEnd.gif][] \}   
![None.gif][]  
![ExpandedBlockStart.gif][]![ContractedBlock.gif][] /\*\* \*/ /\*\*  
![InBlock.gif][] \*  
![InBlock.gif][] \* @param src File  
![InBlock.gif][] \* @param out ZipOutputStream  
![InBlock.gif][] \* @param base String  
![InBlock.gif][] \* @throws IOException  
![ExpandedBlockEnd.gif][]\*/   
![None.gif][] public  static  void  compress(File src, ZipOutputStream out, String base)  throws   
![ExpandedBlockStart.gif][]![ContractedBlock.gif][] IOException  ... \{  
![ExpandedSubBlockStart.gif][]![ContractedSubBlock.gif][]if (src.isDirectory()) ...\{ //如果是目录  
![InBlock.gif][] File\[\] files = src.listFiles(); //列举出目录中所有的内容  
![InBlock.gif][] out.putNextEntry(new ZipEntry(base \+"/")); //放入一级目录  
![InBlock.gif][] base = base.length() ==0?"" : base \+"/";  
![ExpandedSubBlockStart.gif][]![ContractedSubBlock.gif][]for (int i =0; i < files.length; i\++) ...\{  
![InBlock.gif][] compress(files\[i\], out, base \+ files\[i\].getName());  
![ExpandedSubBlockEnd.gif][] \}  
![InBlock.gif][]  
![ExpandedSubBlockEnd.gif][] \}  
![ExpandedSubBlockStart.gif][]![ContractedSubBlock.gif][]else...\{ //如果是文件  
![ExpandedSubBlockStart.gif][]![ContractedSubBlock.gif][]if("".equals(base))...\{  
![InBlock.gif][] out.putNextEntry(new ZipEntry(base\+"/"));  
![InBlock.gif][] base=src.getName();  
![ExpandedSubBlockEnd.gif][] \}  
![InBlock.gif][] out.putNextEntry(new ZipEntry(base));  
![InBlock.gif][] FileInputStream in =new FileInputStream(src);  
![InBlock.gif][]byte \[\]data=newbyte\[4096\];  
![InBlock.gif][]int b;  
![ExpandedSubBlockStart.gif][]![ContractedSubBlock.gif][]while((b=in.read(data))!=-1)...\{  
![InBlock.gif][] out.write(data,0,b);  
![ExpandedSubBlockEnd.gif][] \}  
![InBlock.gif][] in.close();  
![InBlock.gif][]  
![ExpandedSubBlockEnd.gif][] \}  
![ExpandedBlockEnd.gif][] \}   
![ExpandedBlockStart.gif][]![ContractedBlock.gif][] /\*\* \*/ /\*\*  
![InBlock.gif][] \* 解压缩文件  
![InBlock.gif][] \* @param src String zip所在路径c:/test/kk.zip  
![InBlock.gif][] \* @param des String 希望存放的目录  
![InBlock.gif][] \* @throws IOException  
![InBlock.gif][] \* @throws IOException  
![ExpandedBlockEnd.gif][]\*/   
![None.gif][] public  static  void  decompress(String src, String des)  throws  IOException  
![ExpandedBlockStart.gif][]![ContractedBlock.gif][] ... \{  
![InBlock.gif][] ZipFile file=null;  
![InBlock.gif][] FileOutputStream fout=null;  
![InBlock.gif][] DataOutputStream dout=null;  
![ExpandedSubBlockStart.gif][]![ContractedSubBlock.gif][]try...\{  
![InBlock.gif][] file=new ZipFile(src);  
![InBlock.gif][] InputStream in=null;  
![InBlock.gif][] des=des.replace('/', '/');  
![ExpandedSubBlockStart.gif][]![ContractedSubBlock.gif][]if(des.startsWith("//"))...\{  
![InBlock.gif][] des=des.replaceFirst("//", "//");  
![ExpandedSubBlockEnd.gif][] \}  
![InBlock.gif][] Enumeration en=file.getEntries();  
![ExpandedSubBlockStart.gif][]![ContractedSubBlock.gif][]while(en.hasMoreElements())...\{  
![InBlock.gif][] ZipEntry entry=(ZipEntry)en.nextElement();  
![ExpandedSubBlockStart.gif][]![ContractedSubBlock.gif][]if(entry.isDirectory())...\{ //文件夹  
![InBlock.gif][] File directory=new File(des\+"/"\+entry.getName());  
![InBlock.gif][]if(!directory.exists())  
![InBlock.gif][] directory.mkdirs();  
![ExpandedSubBlockStart.gif][]![ContractedSubBlock.gif][] \}else...\{ //文件  
![InBlock.gif][] String path=entry.getName();  
![InBlock.gif][] path=path.replace('/', '/');  
![ExpandedSubBlockStart.gif][]![ContractedSubBlock.gif][]if(path.startsWith("//"))...\{  
![InBlock.gif][] path=path.replaceFirst("//", "//");  
![ExpandedSubBlockEnd.gif][] \}  
![InBlock.gif][]int pos=path.lastIndexOf('/');  
![ExpandedSubBlockStart.gif][]![ContractedSubBlock.gif][]if(pos!=-1)...\{  
![InBlock.gif][] path=path.substring(0, pos\+1);  
![InBlock.gif][] File d=new File(des\+"/"\+path);  
![InBlock.gif][]if(!d.exists())  
![InBlock.gif][] d.mkdirs();  
![ExpandedSubBlockEnd.gif][] \}  
![ExpandedSubBlockStart.gif][]![ContractedSubBlock.gif][]try...\{  
![InBlock.gif][] File files=new File(entry.getName());  
![InBlock.gif][] File f=new File(des\+"/"\+files.getPath());  
![InBlock.gif][]  
![InBlock.gif][] fout=new FileOutputStream(f);  
![InBlock.gif][] dout=new DataOutputStream(fout);  
![InBlock.gif][] in=file.getInputStream(entry);  
![InBlock.gif][]  
![InBlock.gif][]byte\[\] b=newbyte\[4096\];  
![InBlock.gif][]int len =0;  
![ExpandedSubBlockStart.gif][]![ContractedSubBlock.gif][]while ( (len = in.read(b)) !=\-1) ...\{  
![InBlock.gif][] dout.write(b, 0, len);  
![ExpandedSubBlockEnd.gif][] \}  
![InBlock.gif][]  
![ExpandedSubBlockStart.gif][]![ContractedSubBlock.gif][] \}catch(IOException e)...\{  
![InBlock.gif][]throw e;  
![ExpandedSubBlockStart.gif][]![ContractedSubBlock.gif][] \}finally...\{  
![InBlock.gif][]if(fout!=null)  
![InBlock.gif][] fout.close();  
![InBlock.gif][]if(dout!=null)  
![InBlock.gif][] dout.close();  
![InBlock.gif][]if(in!=null)  
![InBlock.gif][] in.close();  
![ExpandedSubBlockEnd.gif][] \}  
![ExpandedSubBlockEnd.gif][] \}  
![ExpandedSubBlockEnd.gif][] \}  
![ExpandedSubBlockStart.gif][]![ContractedSubBlock.gif][] \}catch(IOException e)...\{  
![InBlock.gif][]throw e;  
![ExpandedSubBlockStart.gif][]![ContractedSubBlock.gif][] \}finally...\{  
![InBlock.gif][]if(file!=null)  
![InBlock.gif][] file.close();  
![InBlock.gif][]if(fout!=null)  
![InBlock.gif][] fout.close();  
![InBlock.gif][]if(dout!=null)  
![InBlock.gif][] dout.close();  
![ExpandedSubBlockEnd.gif][] \}  
![ExpandedBlockEnd.gif][] \}   
![ExpandedBlockStart.gif][]![ContractedBlock.gif][] /\*\* \*/ /\*\*  
![InBlock.gif][] \* 解压缩zip文件  
![InBlock.gif][] \* @param src String  
![InBlock.gif][] \* @param des String  
![InBlock.gif][] \* @return boolean 成功返回true;  
![ExpandedBlockEnd.gif][]\*/   
![ExpandedBlockStart.gif][]![ContractedBlock.gif][] public  static  boolean  zipDecompress(String src, String des)  ... \{  
![InBlock.gif][]boolean success =true;  
![ExpandedSubBlockStart.gif][]![ContractedSubBlock.gif][]try...\{  
![InBlock.gif][] decompress(src, des);  
![ExpandedSubBlockEnd.gif][] \}  
![ExpandedSubBlockStart.gif][]![ContractedSubBlock.gif][]catch (FileNotFoundException ex) ...\{  
![InBlock.gif][] ex.printStackTrace();  
![InBlock.gif][] success =false;  
![ExpandedSubBlockEnd.gif][] \}  
![ExpandedSubBlockStart.gif][]![ContractedSubBlock.gif][]catch (IOException ex) ...\{  
![InBlock.gif][] ex.printStackTrace();  
![InBlock.gif][] success =false;  
![ExpandedSubBlockEnd.gif][] \}  
![InBlock.gif][]  
![InBlock.gif][]return success;  
![ExpandedBlockEnd.gif][] \}

该类有很多不完善的地方,各位可以提意见,共同交流,谢谢

[ExpandedBlockStart.gif]: http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedBlockStart.gif
[ContractedBlock.gif]: /images/20220828/eb0cdde38eda4d1cbb85803f9f7ff51e.png
[InBlock.gif]: /images/20220828/5ac1de3083a04fa28040b6218431a161.png
[ExpandedBlockEnd.gif]: /images/20220828/402b95e8f97d4f978ec31d63f51a8ce8.png
[ExpandedSubBlockStart.gif]: http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif
[ContractedSubBlock.gif]: /images/20220828/93d854a87dd94adfacd24cd909f3796b.png
[ExpandedSubBlockEnd.gif]: /images/20220828/862e51c94f1f4f88a9277fd60184249d.png
[None.gif]: /images/20220828/a35d1c3983d94b35ad486437ad0d610a.png