Java实现多文件压缩和解压缩代码详解编程语言

Java实现多文件压缩和解压缩代码

    import java.io.File;   
    import java.io.FileInputStream;   
    import java.io.FileOutputStream;   
    import java.io.InputStream;   
    import java.io.OutputStream;   
    import java.util.Enumeration;   
    import java.util.zip.ZipEntry;   
    import java.util.zip.ZipFile;   
    import java.util.zip.ZipOutputStream;   
       
    public class TestZIP {   
       
        /**  
         * 功能:压缩多个文件成一个zip文件  
         * @param srcfile：源文件列表  
         * @param zipfile：压缩后的文件  
         */   
        public static void zipFiles(File[] srcfile, File zipfile) {   
            byte[] buf = new byte[1024];   
            try {   
                //ZipOutputStream类：完成文件或文件夹的压缩   
                ZipOutputStream out = new ZipOutputStream(new FileOutputStream(zipfile));   
                for (int i = 0; i < srcfile.length; i++) {   
                    FileInputStream in = new FileInputStream(srcfile[i]);   
                    out.putNextEntry(new ZipEntry(srcfile[i].getName()));   
                    int len;   
                    while ((len = in.read(buf)) > 0) {   
                        out.write(buf, 0, len);   
                    }   
                    out.closeEntry();   
                    in.close();   
                }   
                out.close();   
                System.out.println("压缩完成.");   
            } catch (Exception e) {   
                e.printStackTrace();   
            }   
        }   
       
        /**  
         * 功能:解压缩  
         * @param zipfile：需要解压缩的文件  
         * @param descDir：解压后的目标目录  
         */   
        public static void unZipFiles(File zipfile, String descDir) {   
            try {   
                ZipFile zf = new ZipFile(zipfile);   
                for (Enumeration entries = zf.entries(); entries.hasMoreElements();) {   
                    ZipEntry entry = (ZipEntry) entries.nextElement();   
                    String zipEntryName = entry.getName();   
                    InputStream in = zf.getInputStream(entry);   
                    OutputStream out = new FileOutputStream(descDir + zipEntryName);   
                    byte[] buf1 = new byte[1024];   
                    int len;   
                    while ((len = in.read(buf1)) > 0) {   
                        out.write(buf1, 0, len);   
                    }   
                    in.close();   
                    out.close();   
                    System.out.println("解压缩完成.");   
                }   
            } catch (Exception e) {   
                e.printStackTrace();   
            }   
        }   
       
        /**功能:  
         * @param args  
         */   
        public static void main(String[] args) {   
            //2个源文件   
            File f1 = new File("D://test//1.csv");   
            File f2 = new File("D://test//2.xlsx");   
            File[] srcfile = { f1, f2 };   
               
            //压缩后的文件   
            File zipfile = new File("D://test//3.zip");   
            TestZIP.zipFiles(srcfile, zipfile);   
       
            //需要解压缩的文件   
            File file = new File("D://test//3.zip");   
            //解压后的目标目录   
            String dir = "D://test//1//";   
            TestZIP.unZipFiles(file, dir);   
        }   
    }  

转自：http://blog.csdn.net/zdp072/article/details/44177925