java.util.zip

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（一）压缩单个文件

 public static void main(String[] args) {        //压缩单个文件        //要压缩的文件路径        String filepath="D:\\markavip\\测试.txt";        //文件压缩之后的路径        String zippath="D:\\markavip\\test.zip";        zipFile(filepath,zippath);    }    public static void zipFile(String filepath,String zippath){        InputStream input=null;        //压缩        ZipOutputStream zipOut=null;        try{            File file=new File(filepath);            File zipFile=new File(zippath);            input=new FileInputStream(file);            zipOut=new ZipOutputStream(new FileOutputStream(zipFile));            zipOut.putNextEntry(new ZipEntry(file.getName()));            int tmp=0;            byte[] buffer=new byte[1024];            while((tmp=input.read(buffer,0,1024))!=-1){                zipOut.write(buffer,0,tmp);            }        }catch(Exception e){            e.printStackTrace();        }finally {            try{                input.close();                zipOut.close();            }catch (Exception ex){                ex.printStackTrace();            }        }    }

（二）、压缩一个文件夹（包含多个文件）

 public static void main(String[] args) {        //文件夹路径        String filepath="D:\\markavip\\";        //压缩后的文件夹路径        String zippath="D:\\markTest.zip";        zipDirFile(filepath,zippath);    }    public static void zipDirFile(String filepath,String zippath){        try{            File file=new File(filepath);            File zipFile=new File(zippath);            InputStream input=null;            ZipOutputStream zipOut=new ZipOutputStream(new FileOutputStream(zipFile));            if(file.isDirectory()){                File[]  files=file.listFiles();                for(int i=0;i<files.length;i++){                    input=new FileInputStream(files[i]);                    zipOut.putNextEntry(new ZipEntry(file.getName()+File.separator+files[i].getName()));                    int tmp=0;                    byte[] buf=new byte[1024];                    while((tmp=input.read(buf,0,1024))!=-1){                        zipOut.write(buf,0,tmp);                    }                    input.close();                }            }else{                //调用单个压缩文件                    ZipOneFile.zipFile(filepath,zippath);            }            zipOut.close();        }catch (Exception e){            e.printStackTrace();        }    }

（三）解压单个文件

public static void main(String[] args) {        //压缩的文件路径        String zippath="D:\\markavip\\test.zip";        //解压之后的文件路径        String outfilepath="D:\\markavip\\one.txt";        //压缩文件中的文件名        String filename="测试.txt";        zipContraFile(zippath,outfilepath,filename);    }    public static void  zipContraFile(String zippath,String outfilepath,String filename){        try{            File file=new File(zippath);            File outFile=new File(outfilepath);            ZipFile zipFile=new ZipFile(file);            ZipEntry entry=zipFile.getEntry(filename);            InputStream input=zipFile.getInputStream(entry);            OutputStream output=new FileOutputStream(outFile);            int tmp=0;            byte[] buf=new byte[1024];            while((tmp=input.read(buf,0,1024))!=-1){                output.write(buf,0,tmp);            }            input.close();            output.close();        }catch (Exception e){            e.printStackTrace();        }finally {        }    }

（四）、解压一个文件夹（内含多个文件）

 public static void main(String[] args) {        //压缩文件路径        String zippath="D:\\markTest.zip";        //解压后的路径        String outfilepath="D:\\YOHO";        zipContraMultiFile(zippath,outfilepath);    }    public static void zipContraMultiFile(String zippath,String outfilepath ){        ZipInputStream zipInput=null;        ZipFile zipFile=null;        InputStream input=null;        OutputStream output=null;        try{            File file=new File(zippath);            File outFile=null;            zipFile=new ZipFile(file);            zipInput=new ZipInputStream(new FileInputStream(file));            ZipEntry entry=null;            while ((entry=zipInput.getNextEntry())!=null){                outFile=new File(outfilepath+File.separator+entry.getName());                if(!outFile.getParentFile().exists()){                    outFile.getParentFile().mkdir();                }                if(!outFile.exists()){                    outFile.createNewFile();                }                input=zipFile.getInputStream(entry);                output=new FileOutputStream(outFile);                int tmp=0;                byte[] buf=new byte[1024];                while((tmp=input.read(buf,0,1024))!=-1){                    output.write(buf,0,tmp);                }            }        }catch (Exception e){            e.printStackTrace();        }finally {            try{                input.close();                output.close();                zipInput.close();                zipFile.close();            }catch (Exception e){                e.printStackTrace();            }        }    }

参考文章：
http://www.2cto.com/kf/201412/363662.html
http://www.cnblogs.com/chiangfai/p/5888141.html
http://blog.csdn.net/u011423071/article/details/52043702

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