对zip文件进行解压操作和对一个文件进行压缩操作
注意这里用的是apche下的zip
package org.springframework.validation; import org.apache.tools.zip.ZipEntry; import org.apache.tools.zip.ZipFile; import org.apache.tools.zip.ZipOutputStream; import org.springframework.util.Assert; import org.springframework.util.StringUtils; import java.io.*; import java.util.Enumeration; /** * @author qinlinsen */ public class ZipFileUtils { private static final String ZIP_FILE_NOT_EXISTS = "zip file doesn't exists"; private static final String DEFAULT_ZIP_CHARSET = "GBK"; private static final String UNZIP_OPERATION_SUCCESS = "doUnzip operation success "; private static final String UNZIP_FILE_PATH_CANNOT_BE_NULL = "unzip file absolute path cannot be null"; private static final String ZIP_FILE_PATH_CANNOT_BE_NULL = "zip file absolute path cannot be null"; private static final String FILE_SEPARATOR = "file.separator"; /** * 解压操作 * @param zipFilePath zip文件的绝对路径 * @param unzipFilePath 解压之后文件的绝对路径 * @return */ public static String doUnzip(String zipFilePath, String unzipFilePath) { //validate input parameters Assert.notNull(unzipFilePath, UNZIP_FILE_PATH_CANNOT_BE_NULL); Assert.notNull(zipFilePath, ZIP_FILE_PATH_CANNOT_BE_NULL); ZipFile zipFile = null; String directoryName = ""; try { zipFile = new ZipFile(zipFilePath, DEFAULT_ZIP_CHARSET); } catch (IOException e) { System.out.println(ZIP_FILE_NOT_EXISTS); e.printStackTrace(); } Enumeration<ZipEntry> entries = zipFile.getEntries(); while (entries.hasMoreElements()) { ZipEntry zipEntry = entries.nextElement(); if (zipEntry.isDirectory()) { directoryName = zipEntry.getName(); directoryName = directoryName.substring(0, directoryName.length() - 1); if(!unzipFilePath.endsWith(System.getProperty(FILE_SEPARATOR))){ unzipFilePath=unzipFilePath+System.getProperty(FILE_SEPARATOR); } File folder = new File(unzipFilePath + directoryName); //create a folder folder.mkdir(); } else { InputStream in = null; OutputStream out = null; try { File file = new File(unzipFilePath + zipEntry.getName()); //create a parent file file.getParentFile().mkdir(); //create a file file.createNewFile(); //read and write operation in = zipFile.getInputStream(zipEntry); out = new FileOutputStream(file); int len = 0; byte[] bytes = new byte[1024]; while ((len = in.read(bytes, 0, 1024)) != -1) { out.write(bytes, 0, len); } } catch (IOException e) { e.printStackTrace(); } finally { try { in.close(); out.close(); } catch (IOException e) { e.printStackTrace(); } } } } System.out.println(UNZIP_OPERATION_SUCCESS); if (!StringUtils.isEmpty(zipFile)) { try { zipFile.close(); } catch (IOException e) { e.printStackTrace(); } } return unzipFilePath + directoryName; } /** * 压缩文件的操作 *具体用法参考下面的main方法的用法 * @param sourceUnzipFileAbsolutePath 要压缩的文件的绝对路径，这里假定这个文件形如：a/b/c/d.jpg * @param destZipFileAbsolutePath 压缩文件的绝对路径 */ public static void doZip(String sourceUnzipFileAbsolutePath, String destZipFileAbsolutePath) { File unzipFile = null; BufferedInputStream in = null; ZipOutputStream out = null; try { //validate input parameters Assert.notNull(sourceUnzipFileAbsolutePath, UNZIP_FILE_PATH_CANNOT_BE_NULL); Assert.notNull(destZipFileAbsolutePath, ZIP_FILE_PATH_CANNOT_BE_NULL); Assert.isTrue(destZipFileAbsolutePath.endsWith(".zip"), "zip file must ends with .zip"); unzipFile = new File(sourceUnzipFileAbsolutePath); if (unzipFile.exists()) { File zipFile = new File(destZipFileAbsolutePath); if (zipFile.exists()) { throw new RuntimeException("该zip文件已经存在，请重新输入.zip文件的绝对路径"); } zipFile.createNewFile(); if (zipFile.exists()) { File[] sourceFiles = unzipFile.listFiles(); if (null == sourceFiles || sourceFiles.length < 1) { System.out.println("File Catalog:" + sourceUnzipFileAbsolutePath + "nothing in there,don't have to compress!"); } else { out = new ZipOutputStream(new BufferedOutputStream(new FileOutputStream(zipFile))); byte[] buffers = new byte[1024 * 10]; for (int i = 0; i < sourceFiles.length; i++) { // create .zip and put pictures in ZipEntry zipEntry = new ZipEntry(sourceFiles[i].getName()); out.putNextEntry(zipEntry); // read documents and put them in the zip in = new BufferedInputStream(new FileInputStream(sourceFiles[i]), 1024 * 10); int read = 0; while ((read = in.read(buffers, 0, buffers.length)) != -1) { out.write(buffers, 0, read); } } System.out.println("压缩成功，压缩文件的目录：" + zipFile.getAbsolutePath()); } } } else { System.out.println(unzipFile.getAbsolutePath() + " doesn't not exists !"); throw new RuntimeException(unzipFile.getAbsolutePath() + " doesn't not exists !"); } } catch (Exception e) { e.printStackTrace(); System.out.println(e.getMessage()); } finally { try { if (null != in) { in.close(); } if (null != out) { out.close(); } } catch (IOException e) { e.printStackTrace(); } } } /** *对jpg照片进行重命名操作 * @param unzipFilePath 需要重命名的文件路径 * @param userName 用户名 * @param workCode 工号 * @param orgCode 结构代码 */ public static void doRename(String unzipFilePath,String userName,String workCode,String orgCode){ try { Assert.notNull(unzipFilePath,"file cannot be null"); Assert.notNull(userName,"user name cannot be null"); Assert.notNull(workCode,"work code cannot be null"); Assert.notNull(orgCode,"organization code cannot be null"); File unzipFile = new File(unzipFilePath); File[] files = unzipFile.listFiles(); int count=0; for(File file :files){ String destFilePath = file.getParent()+"/"; String destFileName=userName+count+"-"+workCode+count+"-"+orgCode+".jpg"; file.renameTo(new File(destFilePath+destFileName)); count++; } System.out.println("rename successfully !"); } catch (Exception e) { e.printStackTrace(); System.out.println("rename failed !"); } finally { } } public static void main(String[] args) { //压缩文件的操作测试 String zipPath_zip_operation = "C:\\Users\\yckj0911\\Desktop\\yyyy.zip"; String unzipPath_zip_operation = "C:\\Users\\yckj0911\\Desktop\\人民2\\人民"; // doZip(unzipPath_zip_operation, zipPath_zip_operation); //解压文件的操作测试： String zipPath_unzip_operation = "C:\\Users\\yckj0911\\Desktop\\yyyy.zip"; String unzipPath_unzip_operation = "C:\\Users\\yckj0911\\Desktop\\ccc"; if(!unzipPath_unzip_operation.endsWith(System.getProperty("file.separator"))){ unzipPath_unzip_operation=unzipPath_unzip_operation+System.getProperty("file.separator"); } //doUnzip(zipPath_unzip_operation,unzipPath_unzip_operation); String need_rename_file_path= "C:\\Users\\yckj0911\\Desktop\\ccc"; doRename(need_rename_file_path,"qls","yckj","YCKJ"); } }
