java生成zip文件打包操作代码(包括解压缩)

最近发现用java.util.zip打zip包会有中文乱码问题，从网上找了些方法，是因为java的生成zip的方法不支持编码格式的更改，特此记录下来，中文乱码问题，用ant.jar包下的zip类，因此要将ant.jar包导入的项目中lib文件夹下，在生成zip包的类中导入一下类：

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

 

这是生成zip包的方法，红色是修改后的地方：

public static void zipFile(String baseDir,String fileName) throws Exception{  
        List fileList=getSubFiles(new File(baseDir));  
        ZipOutputStream zos=new ZipOutputStream(new FileOutputStream(fileName));  
        ZipEntry ze=null;  
        byte[] buf=new byte[BUFFER];  
        int readLen=0;  
        for(int i = 0; i <fileList.size(); i++) {  
            File f=(File)fileList.get(i);  
            ze=new ZipEntry(getAbsFileName(baseDir, f));  
            ze.setSize(f.length());  
            ze.setTime(f.lastModified());     
            zos.putNextEntry(ze);  
            InputStream is=new BufferedInputStream(new FileInputStream(f));  
            while ((readLen=is.read(buf, 0, BUFFER))!=-1) {  
                zos.write(buf, 0, readLen);  
            }  
            zos.setEncoding("GBK");
            is.close();  
        }  
        zos.close();  
    } 

这两天工作中用到了要打zip包的功能，因此从网上搜集了一些资料，也自己写了一些打包过程中可能要用的方法，在此分享一下：

import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.ArrayList;
import java.util.Enumeration;
import java.util.List;
import java.util.zip.ZipEntry;
import java.util.zip.ZipFile;
import java.util.zip.ZipOutputStream;
public class ZipTools {  
      
    public static final String ZIP_FILENAME = "";  //需要解压缩的文件名  
    public static final String ZIP_DIR = "";   //需要压缩的文件夹  
    public static final String UN_ZIP_DIR = "";   //要解压的文件目录  
    public static final int BUFFER = 1024 ;    //缓存大小  
   
      
  
    public static void zipFile(String baseDir,String fileName) throws Exception{  
        List fileList=getSubFiles(new File(baseDir));  
        ZipOutputStream zos=new ZipOutputStream(new FileOutputStream(fileName));  
        ZipEntry ze=null;  
        byte[] buf=new byte[BUFFER];  
        int readLen=0;  
        for(int i = 0; i <fileList.size(); i++) {  
            File f=(File)fileList.get(i);  
            ze=new ZipEntry(getAbsFileName(baseDir, f));  
            ze.setSize(f.length());  
            ze.setTime(f.lastModified());     
            zos.putNextEntry(ze);  
            InputStream is=new BufferedInputStream(new FileInputStream(f));  
            while ((readLen=is.read(buf, 0, BUFFER))!=-1) {  
                zos.write(buf, 0, readLen);  
            }  
            is.close();  
        }  
        zos.close();  
    }  
 private static String getAbsFileName(String baseDir, File realFileName){  
        File real=realFileName;  
        File base=new File(baseDir);  
        String ret=real.getName();  
        while (true) {  
            real=real.getParentFile();  
            if(real==null)   
                break;  
            if(real.equals(base))   
                break;  
            else 
                ret=real.getName()+"/"+ret;  
        }  
        return ret;  
    }  
      
private static List getSubFiles(File baseDir){  
        List ret=new ArrayList();  
        File[] tmp=baseDir.listFiles();  
        for (int i = 0; i <tmp.length; i++) {  
            if(tmp[i].isFile())  
                ret.add(tmp[i]);  
            if(tmp[i].isDirectory())  
                ret.addAll(getSubFiles(tmp[i]));  
        }  
        return ret;  
    }  
      
public static void upZipFile() throws Exception{  
        ZipFile zfile=new ZipFile(ZIP_FILENAME);  
        Enumeration zList=zfile.entries();  
        ZipEntry ze=null;  
        byte[] buf=new byte[1024];  
        while(zList.hasMoreElements()){  
            ze=(ZipEntry)zList.nextElement();         
            if(ze.isDirectory()){  
                File f=new File(ZIP_DIR+ze.getName());  
                f.mkdir();  
                continue;  
            }  
            OutputStream os=new BufferedOutputStream(new FileOutputStream(getRealFileName(ZIP_DIR, ze.getName())));  
            InputStream is=new BufferedInputStream(zfile.getInputStream(ze));  
            int readLen=0;  
            while ((readLen=is.read(buf, 0, 1024))!=-1) {  
                os.write(buf, 0, readLen);  
            }  
            is.close();  
            os.close();   
        }  
        zfile.close();  
    }  
 
public static File getRealFileName(String baseDir, String absFileName){  
        String[] dirs=absFileName.split("/");  
        File ret=new File(baseDir);  
        if(dirs.length>1){  
            for (int i = 0; i < dirs.length-1;i++) {  
                ret=new File(ret, dirs[i]);  
            }  
            if(!ret.exists())  
                ret.mkdirs();  
            ret=new File(ret, dirs[dirs.length-1]);  
            return ret;  
        }  
        return ret;  
    }  

public static void deleteDirFile(String path){
     File file=new File(path);
     if(file.isDirectory()){       //如果是目录，先递归删除
         String[] list=file.list();
         for(int i=0;i<list.length;i++){
          deleteDirFile(path+"\\"+list[i]);  //先删除目录下的文件
         }
     }       
     file.delete();
 }
   
   
 public static String newFolder(String dir){
  java.io.File myFilePath=new java.io.File(dir);
  if(myFilePath.isDirectory()){}else{
   myFilePath.mkdirs();
  }
  return dir;
 }

public static String getFileNames(String path){   
         
        File file = new File(path);            // get file list where the path has
        File[] array = file.listFiles();          // 获得文件列表 
        String pdfNames="";
       
        for(int i=0;i<array.length;i++){   
            if(array[i].isFile()){   
                if(array[i].getName().endsWith(".pdf")){   //获得pdf文件名称
                 pdfNames+=array[i].getName().substring(0,array[i].getName().length()-4)+",";
                }
            }  
        }
        if(pdfNames.length()>0){
         pdfNames.substring(0,pdfNames.length()-1);
        }
        return pdfNames;
    }
 

public static void copyFile(String oldPath, String newPath) {
        try {
            int bytesum = 0;
            int byteread = 0;
            File oldfile = new File(oldPath);
            if (oldfile.exists()) {          //文件存在时
                InputStream inStream = new FileInputStream(oldPath); //读入原文件
                FileOutputStream fs = new FileOutputStream(newPath);
                byte[] buffer = new byte[1444];
                while ( (byteread = inStream.read(buffer)) != -1) {
                    bytesum += byteread;        //字节数文件大小
                    fs.write(buffer, 0, byteread);
                }
                inStream.close();
            }
        }
        catch (Exception e) {
            System.out.println("copy file error!");
            e.printStackTrace();
        }
    }
 
public static boolean fileExist(String fileNames,String pdfName){
  boolean flag=false;
  if(!"".equals(fileNames)){
   String[] nameArr=fileNames.split(",");
   for(int i=0;i<nameArr.length;i++){
    if(pdfName.equals(nameArr[i])){        //如果文件名相同则执行拷贝操作(拷贝到zip目录准备打包)
     flag=true;
     break;
    }
   }
  }
  return flag;
 }
 

public static void deleteFileAndDir(String path){
   File file = new File(path);   
         File[] array = file.listFiles(); 
         for(int i=0;i<array.length;i++){   
             if(array[i].isFile()){
                 array[i].delete();
             }else if(array[i].isDirectory()){   
              deleteDirFile(array[i].getPath());  
             }   
         }   
 }
 
}