Zip解压，加压
由于频繁需要解压ZIP，加压ZIP故自己写了个工具类方便以后处理时用到,暂时不给过多解释，有啥问题，大家一起讨论哈
FileItem:
public class FileItem {private String fileName;private byte[] fileContent;public String getFileName() {return fileName;}public void setFileName(String fileName) {this.fileName = fileName;}public byte[] getFileContent() {return fileContent;}public void setFileContent(byte[] fileContent) {this.fileContent = fileContent;}}
FileUtil:
import java.io.BufferedInputStream;import java.io.BufferedOutputStream;import java.io.ByteArrayInputStream;import java.io.ByteArrayOutputStream;import java.io.File;import java.io.FileInputStream;import java.io.FileNotFoundException;import java.io.FileOutputStream;import java.io.IOException;import java.io.InputStream;import java.util.ArrayList;import java.util.List;import java.util.zip.ZipEntry;import java.util.zip.ZipInputStream;import java.util.zip.ZipOutputStream;public class FileUtil {/**缓存大小*/private final static int BUFFER_SIZE = 8192;/**后缀名*/private final static String SUFFIX = "zip";/**后缀名分隔符*/private final static String POINT = ".";/** * 获得字节数组 ** @param filepath 文件全路径 * @return 字节数组 * @throws IOException IOException */public static byte[] getBytes(File file) throws IOException{return getBytes(file.getAbsolutePath());} public static byte[] getBytes(String filepath) throws IOException {BufferedInputStream bis = null;ByteArrayOutputStream byteArrayOutputStream = null;BufferedOutputStream bos = null;try {byteArrayOutputStream = new ByteArrayOutputStream();bis = new BufferedInputStream(new FileInputStream(filepath));bos = new BufferedOutputStream(byteArrayOutputStream);byte[] bytes = new byte;int len;while ((len = bis.read(bytes, 0, BUFFER_SIZE)) != -1) {bos.write(bytes, 0, len);}} catch (FileNotFoundException e) {e.printStackTrace();throw e;} catch (IOException e) {e.printStackTrace();throw e;} finally {if (null != bis) {try {bis.close();} catch (IOException e) {e.printStackTrace();}}if (null != byteArrayOutputStream) {try {byteArrayOutputStream.close();} catch (IOException e) {e.printStackTrace();}}if (null != bos) {try {bos.close();} catch (IOException e) {e.printStackTrace();}}}return byteArrayOutputStream.toByteArray();}/** * 统一文件分隔符为LINUX，类UNIX文件系统风格 ** @param direcotory 目录 * @return 统一处理后目录字符串风格 */private static String replaceAllSeparator(String direcotory) {String str = direcotory.replaceAll("\\\\", "/");return str.length() != str.lastIndexOf("/") ? str + "/" : str;}/** * 将文件项写到文件** @param fileItem 文件项 * @param directory 目录 * @throws IOException IOException */public static void writeFile(FileItem fileItem, String directory)throws IOException {File dir = new File(directory);if (!dir.exists()) {dir.mkdirs();}writeFile(fileItem.getFileContent(), replaceAllSeparator(directory)+ fileItem.getFileName());}/** * 写文件 ** @param fileContent 文件二进制流 * @param filepath 文件全路径 * @throws IOException IOException*/public static void writeFile(byte[] fileContent, String filepath)throws IOException {InputStream inputStream = new ByteArrayInputStream(fileContent);writeFile(inputStream, filepath);}/** * 将流写到一个文件 ** @param inputStream 文件流 * @param filepath 文件路径 * @throws IOException IOException*/public static void writeFile(InputStream inputStream, String filepath)throws IOException {BufferedOutputStream bos = null;BufferedInputStream bis = null;try {File file = new File(filepath);if (!file.exists()) {file.createNewFile();}bos = new BufferedOutputStream(new FileOutputStream(file));bis = new BufferedInputStream(inputStream);byte[] buffer = new byte;int len = -1;while ((len = bis.read(buffer, 0, BUFFER_SIZE)) != -1) {bos.write(buffer, 0, len);}} catch (IOException e) {e.printStackTrace();throw e;} finally {if (null != bos)try {bos.close();} catch (IOException e) {e.printStackTrace();}if (null != bis)try {bis.close();} catch (IOException e) {e.printStackTrace();}}}/** * 解压zip文件 * @param filepath 文件全路径 * @return 解压后的文件项 * @throws IOException IOException */public static List uncompressZip(String filepath) throws IOException {ByteArrayOutputStream baos = null;BufferedOutputStream bos = null;ZipInputStream zis = null;// zipInputStreamList fileList = null;try {zis = new ZipInputStream(new FileInputStream(filepath));baos = new ByteArrayOutputStream();bos = new BufferedOutputStream(baos);fileList = new ArrayList();byte[] buffer = new byte;int len = -1;ZipEntry zipEntry = null;while (null != (zipEntry = zis.getNextEntry())) {if (null != zipEntry) {System.out.println("Name:" + zipEntry.getName() + ",Size:"+ zipEntry.getSize() + "bytes");while (-1 != (len = zis.read(buffer))) {bos.write(buffer, 0, len);}bos.flush();byte[] fileContent = baos.toByteArray();FileItem item = new FileItem();item.setFileName(zipEntry.getName());item.setFileContent(fileContent);fileList.add(item);}}} catch (IOException e) {e.printStackTrace();throw e;} finally {if (null != zis) {try {zis.close();} catch (IOException e) {e.printStackTrace();}}if (null != baos) {try {baos.close();} catch (IOException e) {e.printStackTrace();}}if (null != bos) {try {bos.close();} catch (IOException e) {e.printStackTrace();}}}return fileList;}/** * 将目录压缩成zip包 ** @param filepath * 文件全路径 * @throws IOException * IOException */public static FileItem compressZip(String filepath) throws IOException {File directory = new File(filepath);String filename = directory.getName();File[] fileList = directory.listFiles();ZipOutputStream zos = null;BufferedInputStream bis = null;ByteArrayOutputStream baos = null;FileItem fileItem = null;try {baos = new ByteArrayOutputStream();zos = new ZipOutputStream(baos);byte[] buffer = new byte;int len = -1;for (File file : fileList) {bis = new BufferedInputStream(new FileInputStream(file));while (-1 != (len = bis.read(buffer, 0, BUFFER_SIZE))) {//ZipEntry为Zip压缩文件的每一项ZipEntry zipEntry = new ZipEntry(file.getName());zipEntry.setSize(file.length());zipEntry.setCompressedSize(file.length());zos.putNextEntry(zipEntry);zos.write(buffer, 0, len);}//做完一个文件的读写应清下缓存zos.flush();if (null != bis) {bis.close();}}//完成所有文件的读取,转化为一个二进制流的包装zoszos.finish();fileItem = new FileItem();int index = filename.lastIndexOf(".");filename = filename.substring(0, -1 == index ? filename.length(): index);//要生成zip文件的文件名fileItem.setFileName(filename + POINT + SUFFIX);//要生成的zip文件的二进制流fileItem.setFileContent(baos.toByteArray());} catch (IOException e) {e.printStackTrace();throw e;} finally {if (null != baos) {try {baos.close();} catch (IOException e) {e.printStackTrace();}}if (null != bis) {try {bis.close();} catch (IOException e) {e.printStackTrace();}}if (null != zos) {try {zos.close();} catch (IOException e) {e.printStackTrace();}}}return fileItem;}/** * 解压zip文件 ** @param zipFile zip文件 * @return 解压后的文件项 * @throws IOException IOException */public static List uncompressZip(File zipFile) throws IOException {String filepath = zipFile.getAbsolutePath();return uncompressZip(filepath);}public static void main(String[] args) throws IOException {//加压FileItem fileItem = compressZip("F:/Hbzspt/sbinput/SCYSB_1234567890_0901_20100912082719250");//将SCYSB_1234567890_0901_20100912082719250.zip文件写到F:/zjie目录FileUtil.writeFile(fileItem, "F:/zjie");//解压F:/zjie/SCYSB_1234567890_0901_20100912082719250.zip文件List fileItemList = FileUtil.uncompressZip("F:/zjie/SCYSB_1234567890_0901_20100912082719250.zip");//将解压后的文件流生成文件写到F:/zjie/SCYSB_1234567890_0901_20100912082719250/目录for (int i = 0; i < fileItemList.size(); i++) {FileItem item = (FileItem) fileItemList.get(i);DbfUtil.dbfReader(item.getFileContent());FileUtil.writeFile(item.getFileContent(), "F:/zjie/SCYSB_1234567890_0901_20100912082719250/"+item.getFileName());}}}
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