【java基础】zip压缩文件

	public static boolean fileToZip(String sourceFilePath, String zipFilePath, String fileName) {
		boolean flag = false;
		File sourceFile = new File(sourceFilePath);
		FileInputStream fis = null;
		BufferedInputStream bis = null;
		FileOutputStream fos = null;
		ZipOutputStream zos = null;

		if (sourceFile.exists() == false) {
			System.out.println("待压缩的文件目录：" + sourceFilePath + "不存在.");
		} 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.");
					} else {
						fos = new FileOutputStream(zipFile);
						zos = new ZipOutputStream(new BufferedOutputStream(fos));
						byte[] bufs = new byte[1024 * 10];
						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
							fis = new FileInputStream(sourceFiles[i]);
							bis = new BufferedInputStream(fis, 1024 * 10);
							int read = 0;
							while ((read = bis.read(bufs, 0, 1024 * 10)) != -1) {
								zos.write(bufs, 0, read);
							}
						}
						flag = true;
					}
				}
			} catch (FileNotFoundException e) {
				e.printStackTrace();
				throw new RuntimeException(e);
			} catch (IOException e) {
				e.printStackTrace();
				throw new RuntimeException(e);
			} finally {
				// 关闭流
				try {
					if (null != bis)
						bis.close();
					if (null != zos)
						zos.close();
				} catch (IOException e) {
					e.printStackTrace();
					throw new RuntimeException(e);
				}
			}
		}
		return flag;
	}