代码实现文件打包代码,Js代码库,德仔网

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【Js】代码实现文件打包
作者:Alex / 发布于2017/1/18/ 801
代码实现文件打包
package test;     
    
import java.io.BufferedInputStream;     
import java.io.BufferedOutputStream;     
import java.io.File;     
import java.io.FileInputStream;     
import java.io.FileOutputStream;     
import java.util.zip.ZipEntry;     
import java.util.zip.ZipOutputStream;     
    
public class Zip {     
    
    /**    
     * 压缩文件夹    
     * @param zipPath   生成的zip文件路径    
     * @param filePath  需要压缩的文件夹路径    
     * @throws Exception    
     */    
    public void zipFolder(String zipPath, String filePath) throws Exception {     
        ZipOutputStream out = new ZipOutputStream(new FileOutputStream(zipPath));     
        File f = new File(filePath);     
        zipFiles(out, f, "");     
        out.close();     
    }        
    
    /**    
     * 压缩单一个文件    
     * @param zipPath   生成的zip文件路径    
     * @param filePath  需要压缩的文件路径    
     * @throws Exception    
     */    
    public void zipFile(String zipPath, String filePath) throws Exception {     
        File f = new File(filePath);     
        FileInputStream fis = new FileInputStream(f);     
        BufferedInputStream bis = new BufferedInputStream(fis);     
        byte[] buf = new byte[1024];     
        int len;     
        FileOutputStream fos = new FileOutputStream(zipPath);     
        BufferedOutputStream bos = new BufferedOutputStream(fos);     
        ZipOutputStream zos = new ZipOutputStream(bos);//压缩包     
        ZipEntry ze = new ZipEntry(f.getName());//这是压缩包名里的文件名     
        zos.putNextEntry(ze);// 写入新的ZIP文件条目并将流定位到条目数据的开始处     
    
        while ((len = bis.read(buf)) != -1) {     
            zos.write(buf, 0, len);     
            zos.flush();     
        }     
        bis.close();     
        zos.close();     
    
    }     
         
    /**    
     * 递归调用，压缩文件夹和子文件夹的所有文件    
     * @param out    
     * @param f    
     * @param base    
     * @throws Exception    
     */    
    private void zipFiles(ZipOutputStream out, File f, String base) throws Exception {     
        if (f.isDirectory()) {     
            File[] fl = f.listFiles();     
            out.putNextEntry(new ZipEntry(base + "/"));     
            base = base.length() == 0 ? "" : base + "/";     
            for (int i = 0; i < fl.length; i++) {     
                zipFiles(out, fl[i], base + fl[i].getName());//递归压缩子文件夹     
            }     
        } else {     
            out.putNextEntry(new ZipEntry(base));     
            FileInputStream in = new FileInputStream(f);     
            int b;     
            //System.out.println(base);     
            while ((b = in.read()) != -1) {     
                out.write(b);     
            }     
            in.close();     
        }     
    }     
    
    /**    
     * @param args    
     */    
    public static void main(String[] args) {     
        System.out.println("Zip File Begin");     
    
        Zip zip = new Zip();     
        String zipPath = "D:\\test.zip";     
        String filePath = "D:\\test.txt";     
        try {     
            zip.zipFile(zipPath, filePath);//压缩文件     
            //zip.zipFolder(zipPath, filePath);//压缩文件夹     
        } catch (Exception ex) {     
            ex.printStackTrace();     
        }     
        System.out.println("Zip File Done");     
    }     
    
}
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