解压zip文件

　　import java.io.File;
　　import java.io.FileOutputStream;
　　import java.io.IOException;
　　import java.io.InputStream;
　　import java.io.OutputStream;
　　import java.util.Enumeration;
　　import java.util.Map;

　　import org.apache.tools.zip.ZipEntry;
　　import org.apache.tools.zip.ZipFile;

　　import com.google.common.base.Strings;
　　import com.winway.fullmoni.dataplug.cache.FileServerPath;
　　import com.winway.wcloud.datacontact.eception.ResourceResult;
　　import com.winway.wcloud.datacontact.sso.LoginResult;
　　import com.winway.wcloud.dbcore.dao.IDAO;
　　import com.winway.wcloud.httpaction.annotation.Action;
　　import com.winway.wcloud.httpaction.base.BaseController;
　　import com.winway.wcloud.httpbase.NanoHTTPD.IHTTPSession;
　　import com.winway.wcloud.httpbase.NanoHTTPD.Response;
　　import com.winway.wcloud.httpbase.ResponseHelper;
　　import com.winway.wcloud.unity.util.StringUtil;
　　import com.winway.wcloud.unity.util.ZipUtils;

   public static void main(String[] args){
        long start=System.currentTimeMillis();
        Calskdfj cj=new Calskdfj();
        cj.unzip("E:\apache-tomcat-7.0.70.zip","E:\apache-tomcat");
        String f="E:\apache-tomcat-7.0.70";
        long end=System.currentTimeMillis();
        System.out.println("执行时间："+(end-start));
        File file=new File(f);
        String[] test=file.list();
        for(int i=0;i<test.length;i++){
            System.out.println(test[i]);
        }
        System.out.println("-----------------------------");
        
        String filename="";
        File[] tempList=file.listFiles();
        for(int k=0;k<tempList.length;k++){
            if(tempList[k].isFile()){
                System.out.println("文  件"+tempList[k]);
                
                filename=tempList[k].getName();
                System.out.println("文件名："+filename);
            }
            if(tempList[k].isDirectory()){
                System.out.println("文件夹："+tempList[k]);
            }
            
            
        }
    }
    /**
     * 解压zip文件
     * @param path 文件的路径
     * @param savepath  要保存的路径，可以为空，则是为zip文件名为路径
     */
    public void unzip(String path,String savepath){
        File file=null;
        InputStream is=null;
        OutputStream os=null;
        BufferedOutputStream bos=null;
        if(Strings.isNullOrEmpty(savepath)){
            savepath=path.substring(0,path.lastIndexOf('.'))+File.separator;
        }else{
            if(!new File(savepath).isDirectory()&&savepath.lastIndexOf('/')>0){
                savepath=savepath.substring(0, savepath.lastIndexOf('/'));
            }else{
                savepath=savepath+File.separator;
            }
        }
        ZipFile zipFile=null;
        file=new File(savepath);
        if(!file.exists())file.mkdir();
        try {
            zipFile=new ZipFile(new File(path), "gbk");
            Enumeration<?> enerits=zipFile.getEntries();
            while(enerits.hasMoreElements()){
                ZipEntry entry=(ZipEntry) enerits.nextElement();
                String filename=entry.getName();
                boolean ismkdir=false;
                if(filename.lastIndexOf('/')>0){
                    ismkdir=true;
                }
                filename=savepath+filename;
                file=new File(filename);
                if(entry.isDirectory()){
                    file.mkdir();
                    continue;
                }
                if(ismkdir){
                    new File(filename.substring(0, filename.lastIndexOf("/"))).mkdir();
                }
                file.createNewFile();
                is=zipFile.getInputStream(entry);
                os=new FileOutputStream(file);
                bos=new BufferedOutputStream(os);
                byte[] buf=new byte[buffer];
                int count=-1;
                while((count=is.read(buf))!=-1){
                    bos.write(buf, 0, count);
                }
                bos.flush();
                os.close();
                is.close();
            }
            zipFile.close();
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }finally {
            
                try {
                    if(bos!=null) bos.close();
                    if(os!=null) os.close();
                    if(is!=null) is.close();
                    if(zipFile!=null) zipFile.close();
                } catch (IOException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                }
        }
    }