import java.io.BufferedInputStream; import java.io.BufferedOutputStream; import java.io.File; import java.io.FileInputStream; import java.io.FileNotFoundException; import java.io.FileOutputStream; import java.io.IOException; import java.util.zip.ZipEntry; import java.util.zip.ZipOutputStream;public class Zippic {public final static class FileToZip { private FileToZip() { } /** * 将存放在sourceFilePath目录下的源文件,打包成fileName名称的ZIP文件,并存放到zipFilePath。 * @param sourceFilePath 待压缩的文件路径 * @param zipFilePath 压缩后存放路径 * @param fileName 压缩后文件的名称 * @return flag */ public static boolean fileToZip(String sourceFilePath,String zipFilePath,String fileName) { boolean flag = false;File sourceFile = new File(sourceFilePath); if(sourceFile.exists() == false) {System.out.println(">>>>>> 待压缩的文件目录：" + sourceFilePath + " 不存在. <<<<<<"); flag = false;return flag;} else { try { File zipFile = new File(zipFilePath + "/" + fileName + ".zip"); if(zipFile.exists()) { System.out.println(">>>>>> " + zipFilePath + " 目录下存在名字为：" + fileName + ".zip" + " 打包文件. <<<<<<"); } else { File[] sourceFiles = sourceFile.listFiles(); if(null == sourceFiles || sourceFiles.length < 1) { System.out.println(">>>>>> 待压缩的文件目录：" + sourceFilePath + " 里面不存在文件,无需压缩. <<<<<<"); flag = false;return flag;} else {ZipOutputStream zos = new ZipOutputStream(new BufferedOutputStream(new FileOutputStream(zipFile)));  //用到时才申明，否则容易出现问题，记得先开后关，后开先关byte[] bufs = new byte[1024*10];               //缓冲块for(int i=0;i<sourceFiles.length;i++) { // 创建ZIP实体,并添加进压缩包 ZipEntry zipEntry = new ZipEntry(sourceFiles[i].getName()); zos.putNextEntry(zipEntry); // 读取待压缩的文件并写进压缩包里BufferedInputStream bis = new BufferedInputStream(new FileInputStream(sourceFiles[i]),1024*10);    //用到时才申明，否则容易出现问题，记得先开后关，后开先关int read = 0; while((read=(bis.read(bufs, 0, 1024*10))) != -1) {zos.write(bufs, 0, read);}if(null != bis) bis.close();  //关闭}flag = true;if(null != zos) zos.close();  //关闭}}} catch (FileNotFoundException e) { e.printStackTrace(); throw new RuntimeException(e); } catch (IOException e) { e.printStackTrace(); throw new RuntimeException(e); }} return flag; }}}