public Map<String,String> clientUploadAttachment(Long belongId, String fileSource,
MultipartFile file, User currentUser) {
Map<String,String> map = new HashMap<String, String>();
if(file==null){
// map.put("uploadError", "uploadError");
return null;//上传失败返回null
}
try{
InputStream is = file.getInputStream();
String storePath =upLoadPath+DateUtils.getYear()+"/"+DateUtils.getMonth()+"/"+DateUtils.getDay()+"/"+belongId+"/";
String tempFileName = file.getOriginalFilename(); //缓存文件类型转换 源文件
CommonsMultipartFile cf= (CommonsMultipartFile)file;
DiskFileItem fi = (DiskFileItem)cf.getFileItem();
File tempOrginFile = fi.getStoreLocation(); String mimeType = file.getContentType();
int fileType = 5;// 文件类型 1:图片 2:文档 3:视频 4:音频 5.其他
if (mimeType.startsWith("image/")) {
fileType = 1;
}else if(mimeType.startsWith("video")||mimeType.startsWith("mp4")){
fileType = 3;
storePath += "video/";
}else if(mimeType.startsWith("mp3")){
fileType = 4;
storePath += "audio/";
}else{
storePath += "other/";
}
String uuid = IdGen.uuid();
if(is != null&&StringUtils.isNotBlank(tempFileName)){
Attachment attachment = new Attachment();
attachment.setBelongId(belongId);
attachment.setFileType(fileType);
attachment.setFileName(tempFileName);
attachment.setCreatorId(currentUser.getId());
attachment.setCreatorName(currentUser.getLoginName());
attachment.setFileSize(FileUtils.getFileSize(file));
attachment.setFileSource(fileSource==null?5:Integer.parseInt(fileSource)); //生成文件名
String extendName = tempFileName.substring(tempFileName.indexOf("."));
String fileName =uuid + extendName;
String waterName = uuid + extendName;
if(fileType == 1){//图片 缩略图 路径
waterName = uuid + "_small" + extendName;
}else if(fileType == 3){//视频截图 路径
waterName = uuid + "_view" + extendName;
}
//设置临时文件目录
String waterTempPath = SpringContextHolder.getRootRealPath()+"/static/temp/"+waterName; //開始上傳
FTPUtils ftpUtils = FTPUtils.getInstance();
attachment.setFilePath(storePath+fileName);
attachment.setWaterPath(storePath+waterName);
synchronized(this){
boolean upTemp = ftpUtils.storeFile(storePath,fileName,is);
if(upTemp){
if(fileType == 1){//图片 缩略图 处理并上传
ImageUtil.createCompressImg(tempOrginFile,waterTempPath, 200);
File waterFile = new File(waterTempPath);
if(waterFile.exists()&&waterFile.isFile()){
ftpUtils.storeFile(storePath,waterName,new FileInputStream(waterFile));
FileUtils.deleteFile(waterTempPath);
}
}else if(fileType == 3){//视频截图 处理并上传
//TODO://视频截图 处理并上传
}
attachmentDao.saveObj(attachment);
}
}
map.put("attachmentId", String.valueOf(attachment.getId()));
map.put("attachmentUrl", storePath+fileName);
map.put("waterUrl", storePath+waterName);
return map;
}else{
return null;//上传失败返回null
}
}catch(IOException e){
e.printStackTrace();
return null;//上传失败返回null
}
}
package com.bankhui.center.common.utils; import java.awt.Container;
import java.awt.Graphics;
import java.awt.Image;
import java.awt.MediaTracker;
import java.awt.Toolkit;
import java.awt.image.BufferedImage;
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.net.MalformedURLException;
import java.net.URL; import com.sun.image.codec.jpeg.JPEGCodec;
import com.sun.image.codec.jpeg.JPEGEncodeParam;
import com.sun.image.codec.jpeg.JPEGImageEncoder; import javax.imageio.ImageIO; import org.apache.commons.lang.StringUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* 图片处理Util
*/
public class ImageUtil {
private static Logger logger = LoggerFactory.getLogger(ImageUtil.class);
/**
* @param args
*/
public static void main(String[] args) {
/* String imageUrl="C:\\Users\\Public\\Pictures\\Sample Pictures\\1.jpg";
BufferedImage image = getBufferedImageByLocal(imageUrl); //使用ImageUtil获取到图片的高宽
float scale = ((float)image.getWidth() )/ 200; //计算出宽压缩到600px时,压缩的多少倍
int imageHeight = (int) (image.getHeight() / scale); //同样将高也压缩这个多倍(以免图片失真)
Tosmallerpic(new File(imageUrl), new File("D:\\000.jpg"), 200, imageHeight, 0.75f); //使用Tosmallerpic将图片按照比例压缩
*/
} /**
* 生成缩略图
* @param oldSrc
* @param newSrc
* @param width
*/
public static void createCompressImg(File oldFile,String newSrc,Integer width){
BufferedImage image = getBufferedImageByLocal(oldFile);
float scale = ((float)image.getWidth() )/ width;
int imageHeight = (int) (image.getHeight() / scale);
Tosmallerpic(oldFile, new File(newSrc), width, imageHeight, 0.75f);
} /**
* 通过图片链接获取
* @param imgUrl 图片地址
* @return
*/
public static BufferedImage getBufferedImage(String imgUrl) {
URL url = null;
InputStream is = null;
BufferedImage img = null;
try {
url = new URL(imgUrl);
is = url.openStream();
img = ImageIO.read(is);
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} finally { try {
is.close();
} catch (IOException e) {
e.printStackTrace();
}
}
return img;
} /**
* 文件
* @param imgUrl
* @return
* @author liu787427876@126.com
* @date 2014-7-20
*/
public static BufferedImage getBufferedImageByLocal(File file) {
InputStream is = null;
BufferedImage img = null;
try {
is = new FileInputStream(file);
img = ImageIO.read(is);
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} finally {
try {
is.close();
} catch (IOException e) {
e.printStackTrace();
}
}
return img;
} public static BufferedImage getBufferedImageByLocal(String imgUrl) {
if(StringUtils.isBlank(imgUrl)){
throw new NullPointerException("图片路径不能为空!");
}
File file = new File(imgUrl);
return getBufferedImageByLocal(file);
} /**
*
* @param f 图片输出路径
* @param filelist 图片路径
* @param ext 缩略图扩展名
* @param n 图片名
* @param w 目标宽
* @param h 目标高
* @param per 百分比
*/
public static void Tosmallerpic(File oldFile,File newFile,int width,int height,float quality){
if(!newFile.getParentFile().exists()){
newFile.getParentFile().mkdirs();
}
Image src=null;
BufferedImage tag=null;
FileOutputStream newimage=null;
try {
try{
src = javax.imageio.ImageIO.read(oldFile); //构造Image对象
}catch(Exception e){
e.printStackTrace();
logger.info(oldFile.getName()+"图片的ICC信息可能已经被破坏开始转换:");
try {
ThumbnailConvert convert=new ThumbnailConvert();
//convert.setCMYK_COMMAND(oldFile.getPath());
String CMYK_COMMAND = "mogrify -colorspace RGB -quality 100 file1";//转换cmyk格式
convert.exeCommand(CMYK_COMMAND.replace("file1",oldFile.getPath()));
src = Toolkit.getDefaultToolkit().getImage(oldFile.getPath());
MediaTracker mediaTracker = new MediaTracker(new Container());
mediaTracker.addImage(src, 0);
mediaTracker.waitForID(0);
src.getWidth(null);
src.getHeight(null);
}catch (Exception e1){
e1.printStackTrace();
}
} //,String ext 保留字段 缩略图拼接字段
//String img_midname=newFile;
int old_w=src.getWidth(null)==-1?width:src.getWidth(null); //得到源图宽
int old_h=src.getHeight(null)==-1?height:src.getHeight(null);
int new_w=0;
int new_h=0; //得到源图长
double w2=(old_w*1.00)/(width*1.00);
double h2=(old_h*1.00)/(height*1.00);
//图片调整为方形结束
if(old_w>width)
new_w=(int)Math.round(old_w/w2);
else
new_w=old_w;
if(old_h>height)
new_h=(int)Math.round(old_h/h2);//计算新图长宽
else
new_h=old_h;
tag = new BufferedImage(new_w,new_h,BufferedImage.TYPE_INT_RGB);
//tag.getGraphics().drawImage(src,0,0,new_w,new_h,null); //绘制缩小后的图
tag.getGraphics().drawImage(src.getScaledInstance(new_w, new_h,Image.SCALE_SMOOTH), 0,0,null);
newimage=new FileOutputStream(newFile); //输出到文件流
JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(newimage);
JPEGEncodeParam jep=JPEGCodec.getDefaultJPEGEncodeParam(tag);
/* 压缩质量 */
jep.setQuality(quality, true);
encoder.encode(tag, jep);
//encoder.encode(tag); //近JPEG编码
newimage.close();
} catch (IOException ex) {
ex.printStackTrace();
logger.info(oldFile.getName()+"图片压缩问题;"+ex);
//Logger.getLogger(File:mpress.class.getName()).log(Level.SEVERE, null, ex);
}finally{
if(newimage!=null){
try {
newimage.close();
} catch (IOException e) {
e.printStackTrace();
}
}
if(tag!=null){
tag.flush();
}
}
} /**
* 缩放图像
* @param srcImageFile 源图像文件地址
* @param result 缩放后的图像地址
* @param destWidth 缩放宽度
* @param destHeight 缩放高度;
*/
public static boolean scaleImg(File srcImageFile, String result, int destWidth, int destHeight) {
boolean exeRs = false;
try{
BufferedImage src = ImageIO.read(srcImageFile);
Image image = src.getScaledInstance(destWidth, destHeight, Image.SCALE_DEFAULT);
BufferedImage tag = new BufferedImage(destWidth, destHeight, BufferedImage.TYPE_INT_RGB);
Graphics g = tag.getGraphics();
g.drawImage(image, 0, 0, null); // 绘制缩小后的图
g.dispose();
ImageIO.write(tag, "JPEG", new File(result));// 输出到文件流
exeRs = true;
} catch (IOException e) {
e.printStackTrace();
}
return exeRs;
}
}
package com.bankhui.core.base.util; import java.awt.AlphaComposite;
import java.awt.Color;
import java.awt.Font;
import java.awt.Graphics2D;
import java.awt.Image;
import java.awt.RenderingHints;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.io.OutputStream; import javax.imageio.ImageIO;
import javax.swing.ImageIcon; import org.slf4j.Logger;
import org.slf4j.LoggerFactory; /**
* 图片处理类
* @author wangjx
*/
public class ImageUtils {
private final static Logger logger = LoggerFactory.getLogger(ImageUtils.class);
// 水印透明度
private static float alpha = 0.5f;
// 水印横向位置
private static int positionWidth = 150;
// 水印纵向位置
private static int positionHeight = 300;
// 水印文字字体
private static Font font = new Font("宋体", Font.BOLD, 30);
// 水印文字颜色
private static Color color = Color.red; /**
* 给图片添加图片水印
* @param iconPath 水印图片路径
* @param file 源文件
* @param targerPath 目标图片路径
* @param degree 水印图片旋转角度
*/
public static void markImageByIcon(String iconPath, File file,
String targerPath, Integer degree) {
OutputStream os = null;
try {
logger.info("水印图片路径:{}", iconPath);
logger.info("源文件:{}", file.getAbsolutePath());
logger.info("目标图片路径:{}", targerPath);
Image srcImg = ImageIO.read(file); BufferedImage buffImg = new BufferedImage(srcImg.getWidth(null),
srcImg.getHeight(null), BufferedImage.TYPE_INT_RGB); // 得到画笔对象
Graphics2D g = buffImg.createGraphics(); // 设置对线段的锯齿状边缘处理
g.setRenderingHint(RenderingHints.KEY_INTERPOLATION,
RenderingHints.VALUE_INTERPOLATION_BILINEAR); g.drawImage(srcImg.getScaledInstance(srcImg.getWidth(null), srcImg
.getHeight(null), Image.SCALE_SMOOTH), 0, 0, null); if (null != degree) {
// 设置水印旋转
g.rotate(Math.toRadians(degree),
(double) buffImg.getWidth() / 2, (double) buffImg
.getHeight() / 2);
} // 水印图象的路径 水印一般为gif或者png的,这样可设置透明度
ImageIcon imgIcon = new ImageIcon(iconPath); // 得到Image对象。
Image img = imgIcon.getImage(); float alpha = 0.5f; // 透明度
g.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_ATOP,
alpha)); // 表示水印图片的位置 相对于中心店的宽高以及水印图片宽高(img,x,y,width,height,obnull)
g.drawImage(img, buffImg.getWidth() / 6,buffImg.getHeight() / 3, buffImg.getWidth() / 2,buffImg.getHeight() / 4, null); g.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER)); g.dispose(); os = new FileOutputStream(targerPath); // 生成图片
ImageIO.write(buffImg, "JPG", os); logger.info("图片完成添加水印");
} catch (Exception e) {
e.printStackTrace();
logger.error("图片完成添加水印error:{}", e.getMessage());
} finally {
try {
if (null != os)
os.close();
} catch (Exception e) {
e.printStackTrace();
}
}
} /**
* 给图片添加水印文字
* @param logoText 水印文字
* @param srcImgPath 原图片路径
* @param targerPath 目标图片路径
* @param degree 旋转角度
*/
public static void markImageByText(String logoText, String srcImgPath,
String targerPath, Integer degree) { InputStream is = null;
OutputStream os = null;
try {
// 1、源图片
Image srcImg = ImageIO.read(new File(srcImgPath));
BufferedImage buffImg = new BufferedImage(srcImg.getWidth(null),srcImg.getHeight(null), BufferedImage.TYPE_INT_RGB); // 2、得到画笔对象
Graphics2D g = buffImg.createGraphics();
// 3、设置对线段的锯齿状边缘处理
g.setRenderingHint(RenderingHints.KEY_INTERPOLATION,RenderingHints.VALUE_INTERPOLATION_BILINEAR);
g.drawImage(srcImg.getScaledInstance(srcImg.getWidth(null), srcImg.getHeight(null), Image.SCALE_SMOOTH), 0, 0, null);
// 4、设置水印旋转
if (null != degree) {
g.rotate(Math.toRadians(degree),(double) buffImg.getWidth() / 2, (double) buffImg.getHeight() / 2);
}
// 5、设置水印文字颜色
g.setColor(color);
// 6、设置水印文字Font
g.setFont(font);
// 7、设置水印文字透明度
g.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_ATOP,alpha));
// 8、第一参数->设置的内容,后面两个参数->文字在图片上的坐标位置(x,y)
g.drawString(logoText, positionWidth, positionHeight);
// 9、释放资源
g.dispose();
// 10、生成图片
os = new FileOutputStream(targerPath);
ImageIO.write(buffImg, "JPG", os); logger.info("图片完成添加水印文字"); } catch (Exception e) {
e.printStackTrace();
} finally {
try {
if (null != is)
is.close();
} catch (Exception e) {
e.printStackTrace();
}
try {
if (null != os)
os.close();
} catch (Exception e) {
e.printStackTrace();
}
}
} /**
* 判断文件是不是图片
* @param file
* @return
* @author guogf
*/
public static boolean isImage(File file)
{
boolean flag = false;
try
{
Image is = ImageIO.read(file);
if(null != is)
{
flag = true;
}
} catch (Exception e)
{
e.printStackTrace();
}
return flag;
} public static void main(String[] args) {
markImageByText("测试", "d:/5442.jpg", "d:/zzz.jpg", 45);
// markImageByIcon("d:/logo.png", "d:/5442.jpg", "d:/zzz.jpg", 45); } }
/**
* 用户附件上传
*/
@Override
// @Transactional
public Result uploadAttachment(Attachment attachment,
MultipartFile[] files) {
Result result = new Result();
for (MultipartFile file: files) {
try {
if(file!=null){
InputStream is = file.getInputStream();
String tempFileName = file.getOriginalFilename();
String fileType = file.getContentType();
boolean isImage = fileType.contains("image/");
if(is != null&&StringUtils.isNotBlank(tempFileName)){
//生成文件名
String uuid = IdGen.uuid();
String fileName = uuid+tempFileName.substring(tempFileName.indexOf("."));
String waterName= uuid + "_water"+tempFileName.substring(tempFileName.indexOf("."));
//生成文件路徑
String storePath = upLoadPath+attachment.getBelongId()+"/"; //缓存文件类型转换
CommonsMultipartFile cf= (CommonsMultipartFile)file;
DiskFileItem fi = (DiskFileItem)cf.getFileItem();
File tempFile = fi.getStoreLocation(); boolean ftpWaterRs=true;
FTPUtils ftpUtils = FTPUtils.getInstance();
//图片加水印 getResourceRootRealPath
if(isImage){
attachment.setFileType(1); String waterTempPath = SpringContextHolder.getRootRealPath()+"/"+waterName; String logoPath=SpringContextHolder.getRootRealPath()+"/Contents/bankhimages/shuiyin.png"; ImageUtils.markImageByIcon(logoPath, tempFile, waterTempPath, 45);
File waterFile = new File(waterTempPath);
//上传水印图片
ftpWaterRs = ftpUtils.storeFile(storePath,waterName,new FileInputStream(waterFile));
if(!ftpWaterRs){
is.close();
result.setCode(GlobalConstant.FAIL);
result.setMsg("图片添加水印失败,请重试······");
return result;
}
FileUtils.deleteFile(waterTempPath); attachment.setWaterPath(storePath+waterName);
}else{
attachment.setFileType(2);
attachment.setWaterPath(storePath+fileName);
} //上传源文件
boolean ftpFileRs = ftpUtils.storeFile(storePath, fileName, is);
if(ftpFileRs&&ftpWaterRs){
//更新旧文件记录
/* Map map= new HashMap<String, String >();
map.put("type", attachment.getType());
map.put("userId", attachment.getUserId());
map.put("status", 0);//标记为历史记录
homeUserInfoManager.updateAttachmentRecord(map);*/
//添加新的文件记录
attachment.setFilePath(storePath+fileName);
//attachment.setIsWater(0);
attachment.setStatus(1);
int rs=homeUserInfoManager.addAttachmentRecord(attachment);
if(rs>0){
result.setCode(GlobalConstant.SUCCESS);
result.setMsg("附件上传成功。");
}else{
result.setCode(GlobalConstant.FAIL);
result.setMsg("附件记录保存失败了···请重试······");
}
}else{
result.setCode(GlobalConstant.FAIL);
result.setMsg("上传附件失败了···请重试······");
}
is.close();
}
}
} catch (Exception e) {
e.printStackTrace();
}
}
return result;
}
/**
* Copyright © 2012-2016 <a href="https://github.com/thinkgem/jeesite">JeeSite</a> All rights reserved.
*/
package com.bankhui.center.common.utils; import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.RandomAccessFile;
import java.text.DecimalFormat;
import java.util.Enumeration;
import java.util.List; import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse; import org.apache.tools.zip.ZipEntry;
import org.apache.tools.zip.ZipFile;
import org.apache.tools.zip.ZipOutputStream;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.web.multipart.MultipartFile; import com.google.common.collect.Lists; /**
* 文件操作工具类
* 实现文件的创建、删除、复制、压缩、解压以及目录的创建、删除、复制、压缩解压等功能
* @author ThinkGem
* @version 2015-3-16
*/
public class FileUtils extends org.apache.commons.io.FileUtils { private static Logger logger = LoggerFactory.getLogger(FileUtils.class); /**
* 复制单个文件,如果目标文件存在,则不覆盖
* @param srcFileName 待复制的文件名
* @param descFileName 目标文件名
* @return 如果复制成功,则返回true,否则返回false
*/
public static boolean copyFile(String srcFileName, String descFileName) {
return FileUtils.copyFileCover(srcFileName, descFileName, false);
} /**
* 复制单个文件
* @param srcFileName 待复制的文件名
* @param descFileName 目标文件名
* @param coverlay 如果目标文件已存在,是否覆盖
* @return 如果复制成功,则返回true,否则返回false
*/
public static boolean copyFileCover(String srcFileName,
String descFileName, boolean coverlay) {
File srcFile = new File(srcFileName);
// 判断源文件是否存在
if (!srcFile.exists()) {
logger.debug("复制文件失败,源文件 " + srcFileName + " 不存在!");
return false;
}
// 判断源文件是否是合法的文件
else if (!srcFile.isFile()) {
logger.debug("复制文件失败," + srcFileName + " 不是一个文件!");
return false;
}
File descFile = new File(descFileName);
// 判断目标文件是否存在
if (descFile.exists()) {
// 如果目标文件存在,并且允许覆盖
if (coverlay) {
logger.debug("目标文件已存在,准备删除!");
if (!FileUtils.delFile(descFileName)) {
logger.debug("删除目标文件 " + descFileName + " 失败!");
return false;
}
} else {
logger.debug("复制文件失败,目标文件 " + descFileName + " 已存在!");
return false;
}
} else {
if (!descFile.getParentFile().exists()) {
// 如果目标文件所在的目录不存在,则创建目录
logger.debug("目标文件所在的目录不存在,创建目录!");
// 创建目标文件所在的目录
if (!descFile.getParentFile().mkdirs()) {
logger.debug("创建目标文件所在的目录失败!");
return false;
}
}
} // 准备复制文件
// 读取的位数
int readByte = 0;
InputStream ins = null;
OutputStream outs = null;
try {
// 打开源文件
ins = new FileInputStream(srcFile);
// 打开目标文件的输出流
outs = new FileOutputStream(descFile);
byte[] buf = new byte[1024];
// 一次读取1024个字节,当readByte为-1时表示文件已经读取完毕
while ((readByte = ins.read(buf)) != -1) {
// 将读取的字节流写入到输出流
outs.write(buf, 0, readByte);
}
logger.debug("复制单个文件 " + srcFileName + " 到" + descFileName
+ "成功!");
return true;
} catch (Exception e) {
logger.debug("复制文件失败:" + e.getMessage());
return false;
} finally {
// 关闭输入输出流,首先关闭输出流,然后再关闭输入流
if (outs != null) {
try {
outs.close();
} catch (IOException oute) {
oute.printStackTrace();
}
}
if (ins != null) {
try {
ins.close();
} catch (IOException ine) {
ine.printStackTrace();
}
}
}
} /**
* 复制整个目录的内容,如果目标目录存在,则不覆盖
* @param srcDirName 源目录名
* @param descDirName 目标目录名
* @return 如果复制成功返回true,否则返回false
*/
public static boolean copyDirectory(String srcDirName, String descDirName) {
return FileUtils.copyDirectoryCover(srcDirName, descDirName,
false);
} /**
* 复制整个目录的内容
* @param srcDirName 源目录名
* @param descDirName 目标目录名
* @param coverlay 如果目标目录存在,是否覆盖
* @return 如果复制成功返回true,否则返回false
*/
public static boolean copyDirectoryCover(String srcDirName,
String descDirName, boolean coverlay) {
File srcDir = new File(srcDirName);
// 判断源目录是否存在
if (!srcDir.exists()) {
logger.debug("复制目录失败,源目录 " + srcDirName + " 不存在!");
return false;
}
// 判断源目录是否是目录
else if (!srcDir.isDirectory()) {
logger.debug("复制目录失败," + srcDirName + " 不是一个目录!");
return false;
}
// 如果目标文件夹名不以文件分隔符结尾,自动添加文件分隔符
String descDirNames = descDirName;
if (!descDirNames.endsWith(File.separator)) {
descDirNames = descDirNames + File.separator;
}
File descDir = new File(descDirNames);
// 如果目标文件夹存在
if (descDir.exists()) {
if (coverlay) {
// 允许覆盖目标目录
logger.debug("目标目录已存在,准备删除!");
if (!FileUtils.delFile(descDirNames)) {
logger.debug("删除目录 " + descDirNames + " 失败!");
return false;
}
} else {
logger.debug("目标目录复制失败,目标目录 " + descDirNames + " 已存在!");
return false;
}
} else {
// 创建目标目录
logger.debug("目标目录不存在,准备创建!");
if (!descDir.mkdirs()) {
logger.debug("创建目标目录失败!");
return false;
} } boolean flag = true;
// 列出源目录下的所有文件名和子目录名
File[] files = srcDir.listFiles();
for (int i = 0; i < files.length; i++) {
// 如果是一个单个文件,则直接复制
if (files[i].isFile()) {
flag = FileUtils.copyFile(files[i].getAbsolutePath(),
descDirNames + files[i].getName());
// 如果拷贝文件失败,则退出循环
if (!flag) {
break;
}
}
// 如果是子目录,则继续复制目录
if (files[i].isDirectory()) {
flag = FileUtils.copyDirectory(files[i]
.getAbsolutePath(), descDirNames + files[i].getName());
// 如果拷贝目录失败,则退出循环
if (!flag) {
break;
}
}
} if (!flag) {
logger.debug("复制目录 " + srcDirName + " 到 " + descDirName + " 失败!");
return false;
}
logger.debug("复制目录 " + srcDirName + " 到 " + descDirName + " 成功!");
return true; } /**
*
* 删除文件,可以删除单个文件或文件夹
*
* @param fileName 被删除的文件名
* @return 如果删除成功,则返回true,否是返回false
*/
public static boolean delFile(String fileName) {
File file = new File(fileName);
if (!file.exists()) {
logger.debug(fileName + " 文件不存在!");
return true;
} else {
if (file.isFile()) {
return FileUtils.deleteFile(fileName);
} else {
return FileUtils.deleteDirectory(fileName);
}
}
} /**
*
* 删除单个文件
*
* @param fileName 被删除的文件名
* @return 如果删除成功,则返回true,否则返回false
*/
public static boolean deleteFile(String fileName) {
File file = new File(fileName);
if (file.exists() && file.isFile()) {
if (file.delete()) {
logger.debug("删除文件 " + fileName + " 成功!");
return true;
} else {
logger.debug("删除文件 " + fileName + " 失败!");
return false;
}
} else {
logger.debug(fileName + " 文件不存在!");
return true;
}
} /**
*
* 删除目录及目录下的文件
*
* @param dirName 被删除的目录所在的文件路径
* @return 如果目录删除成功,则返回true,否则返回false
*/
public static boolean deleteDirectory(String dirName) {
String dirNames = dirName;
if (!dirNames.endsWith(File.separator)) {
dirNames = dirNames + File.separator;
}
File dirFile = new File(dirNames);
if (!dirFile.exists() || !dirFile.isDirectory()) {
logger.debug(dirNames + " 目录不存在!");
return true;
}
boolean flag = true;
// 列出全部文件及子目录
File[] files = dirFile.listFiles();
for (int i = 0; i < files.length; i++) {
// 删除子文件
if (files[i].isFile()) {
flag = FileUtils.deleteFile(files[i].getAbsolutePath());
// 如果删除文件失败,则退出循环
if (!flag) {
break;
}
}
// 删除子目录
else if (files[i].isDirectory()) {
flag = FileUtils.deleteDirectory(files[i]
.getAbsolutePath());
// 如果删除子目录失败,则退出循环
if (!flag) {
break;
}
}
} if (!flag) {
logger.debug("删除目录失败!");
return false;
}
// 删除当前目录
if (dirFile.delete()) {
logger.debug("删除目录 " + dirName + " 成功!");
return true;
} else {
logger.debug("删除目录 " + dirName + " 失败!");
return false;
} } /**
* 创建单个文件
* @param descFileName 文件名,包含路径
* @return 如果创建成功,则返回true,否则返回false
*/
public static boolean createFile(String descFileName) {
File file = new File(descFileName);
if (file.exists()) {
logger.debug("文件 " + descFileName + " 已存在!");
return false;
}
if (descFileName.endsWith(File.separator)) {
logger.debug(descFileName + " 为目录,不能创建目录!");
return false;
}
if (!file.getParentFile().exists()) {
// 如果文件所在的目录不存在,则创建目录
if (!file.getParentFile().mkdirs()) {
logger.debug("创建文件所在的目录失败!");
return false;
}
} // 创建文件
try {
if (file.createNewFile()) {
logger.debug(descFileName + " 文件创建成功!");
return true;
} else {
logger.debug(descFileName + " 文件创建失败!");
return false;
}
} catch (Exception e) {
e.printStackTrace();
logger.debug(descFileName + " 文件创建失败!");
return false;
} } /**
* 创建目录
* @param descDirName 目录名,包含路径
* @return 如果创建成功,则返回true,否则返回false
*/
public static boolean createDirectory(String descDirName) {
String descDirNames = descDirName;
if (!descDirNames.endsWith(File.separator)) {
descDirNames = descDirNames + File.separator;
}
File descDir = new File(descDirNames);
if (descDir.exists()) {
logger.debug("目录 " + descDirNames + " 已存在!");
return false;
}
// 创建目录
if (descDir.mkdirs()) {
logger.debug("目录 " + descDirNames + " 创建成功!");
return true;
} else {
logger.debug("目录 " + descDirNames + " 创建失败!");
return false;
} } /**
* 写入文件
* @param file 要写入的文件
*/
public static void writeToFile(String fileName, String content, boolean append) {
try {
FileUtils.write(new File(fileName), content, "utf-8", append);
logger.debug("文件 " + fileName + " 写入成功!");
} catch (IOException e) {
logger.debug("文件 " + fileName + " 写入失败! " + e.getMessage());
}
} /**
* 写入文件
* @param file 要写入的文件
*/
public static void writeToFile(String fileName, String content, String encoding, boolean append) {
try {
FileUtils.write(new File(fileName), content, encoding, append);
logger.debug("文件 " + fileName + " 写入成功!");
} catch (IOException e) {
logger.debug("文件 " + fileName + " 写入失败! " + e.getMessage());
}
} /**
* 压缩文件或目录
* @param srcDirName 压缩的根目录
* @param fileName 根目录下的待压缩的文件名或文件夹名,其中*或""表示跟目录下的全部文件
* @param descFileName 目标zip文件
*/
public static void zipFiles(String srcDirName, String fileName,
String descFileName) {
// 判断目录是否存在
if (srcDirName == null) {
logger.debug("文件压缩失败,目录 " + srcDirName + " 不存在!");
return;
}
File fileDir = new File(srcDirName);
if (!fileDir.exists() || !fileDir.isDirectory()) {
logger.debug("文件压缩失败,目录 " + srcDirName + " 不存在!");
return;
}
String dirPath = fileDir.getAbsolutePath();
File descFile = new File(descFileName);
try {
ZipOutputStream zouts = new ZipOutputStream(new FileOutputStream(
descFile));
if ("*".equals(fileName) || "".equals(fileName)) {
FileUtils.zipDirectoryToZipFile(dirPath, fileDir, zouts);
} else {
File file = new File(fileDir, fileName);
if (file.isFile()) {
FileUtils.zipFilesToZipFile(dirPath, file, zouts);
} else {
FileUtils
.zipDirectoryToZipFile(dirPath, file, zouts);
}
}
zouts.close();
logger.debug(descFileName + " 文件压缩成功!");
} catch (Exception e) {
logger.debug("文件压缩失败:" + e.getMessage());
e.printStackTrace();
} } /**
* 解压缩ZIP文件,将ZIP文件里的内容解压到descFileName目录下
* @param zipFileName 需要解压的ZIP文件
* @param descFileName 目标文件
*/
public static boolean unZipFiles(String zipFileName, String descFileName) {
String descFileNames = descFileName;
if (!descFileNames.endsWith(File.separator)) {
descFileNames = descFileNames + File.separator;
}
try {
// 根据ZIP文件创建ZipFile对象
ZipFile zipFile = new ZipFile(zipFileName);
ZipEntry entry = null;
String entryName = null;
String descFileDir = null;
byte[] buf = new byte[4096];
int readByte = 0;
// 获取ZIP文件里所有的entry
@SuppressWarnings("rawtypes")
Enumeration enums = zipFile.getEntries();
// 遍历所有entry
while (enums.hasMoreElements()) {
entry = (ZipEntry) enums.nextElement();
// 获得entry的名字
entryName = entry.getName();
descFileDir = descFileNames + entryName;
if (entry.isDirectory()) {
// 如果entry是一个目录,则创建目录
new File(descFileDir).mkdirs();
continue;
} else {
// 如果entry是一个文件,则创建父目录
new File(descFileDir).getParentFile().mkdirs();
}
File file = new File(descFileDir);
// 打开文件输出流
OutputStream os = new FileOutputStream(file);
// 从ZipFile对象中打开entry的输入流
InputStream is = zipFile.getInputStream(entry);
while ((readByte = is.read(buf)) != -1) {
os.write(buf, 0, readByte);
}
os.close();
is.close();
}
zipFile.close();
logger.debug("文件解压成功!");
return true;
} catch (Exception e) {
logger.debug("文件解压失败:" + e.getMessage());
return false;
}
} /**
* 将目录压缩到ZIP输出流
* @param dirPath 目录路径
* @param fileDir 文件信息
* @param zouts 输出流
*/
public static void zipDirectoryToZipFile(String dirPath, File fileDir, ZipOutputStream zouts) {
if (fileDir.isDirectory()) {
File[] files = fileDir.listFiles();
// 空的文件夹
if (files.length == 0) {
// 目录信息
ZipEntry entry = new ZipEntry(getEntryName(dirPath, fileDir));
try {
zouts.putNextEntry(entry);
zouts.closeEntry();
} catch (Exception e) {
e.printStackTrace();
}
return;
} for (int i = 0; i < files.length; i++) {
if (files[i].isFile()) {
// 如果是文件,则调用文件压缩方法
FileUtils
.zipFilesToZipFile(dirPath, files[i], zouts);
} else {
// 如果是目录,则递归调用
FileUtils.zipDirectoryToZipFile(dirPath, files[i],
zouts);
}
}
}
} /**
* 将文件压缩到ZIP输出流
* @param dirPath 目录路径
* @param file 文件
* @param zouts 输出流
*/
public static void zipFilesToZipFile(String dirPath, File file, ZipOutputStream zouts) {
FileInputStream fin = null;
ZipEntry entry = null;
// 创建复制缓冲区
byte[] buf = new byte[4096];
int readByte = 0;
if (file.isFile()) {
try {
// 创建一个文件输入流
fin = new FileInputStream(file);
// 创建一个ZipEntry
entry = new ZipEntry(getEntryName(dirPath, file));
// 存储信息到压缩文件
zouts.putNextEntry(entry);
// 复制字节到压缩文件
while ((readByte = fin.read(buf)) != -1) {
zouts.write(buf, 0, readByte);
}
zouts.closeEntry();
fin.close();
System.out
.println("添加文件 " + file.getAbsolutePath() + " 到zip文件中!");
} catch (Exception e) {
e.printStackTrace();
}
}
} /**
* 获取待压缩文件在ZIP文件中entry的名字,即相对于跟目录的相对路径名
* @param dirPat 目录名
* @param file entry文件名
* @return
*/
private static String getEntryName(String dirPath, File file) {
String dirPaths = dirPath;
if (!dirPaths.endsWith(File.separator)) {
dirPaths = dirPaths + File.separator;
}
String filePath = file.getAbsolutePath();
// 对于目录,必须在entry名字后面加上"/",表示它将以目录项存储
if (file.isDirectory()) {
filePath += "/";
}
int index = filePath.indexOf(dirPaths); return filePath.substring(index + dirPaths.length());
} /**
* 根据“文件名的后缀”获取文件内容类型(而非根据File.getContentType()读取的文件类型)
* @param returnFileName 带验证的文件名
* @return 返回文件类型
*/
public static String getContentType(String returnFileName) {
String contentType = "application/octet-stream";
if (returnFileName.lastIndexOf(".") < 0)
return contentType;
returnFileName = returnFileName.toLowerCase();
returnFileName = returnFileName.substring(returnFileName.lastIndexOf(".") + 1);
if (returnFileName.equals("html") || returnFileName.equals("htm") || returnFileName.equals("shtml")) {
contentType = "text/html";
} else if (returnFileName.equals("apk")) {
contentType = "application/vnd.android.package-archive";
} else if (returnFileName.equals("sis")) {
contentType = "application/vnd.symbian.install";
} else if (returnFileName.equals("sisx")) {
contentType = "application/vnd.symbian.install";
} else if (returnFileName.equals("exe")) {
contentType = "application/x-msdownload";
} else if (returnFileName.equals("msi")) {
contentType = "application/x-msdownload";
} else if (returnFileName.equals("css")) {
contentType = "text/css";
} else if (returnFileName.equals("xml")) {
contentType = "text/xml";
} else if (returnFileName.equals("gif")) {
contentType = "image/gif";
} else if (returnFileName.equals("jpeg") || returnFileName.equals("jpg")) {
contentType = "image/jpeg";
} else if (returnFileName.equals("js")) {
contentType = "application/x-javascript";
} else if (returnFileName.equals("atom")) {
contentType = "application/atom+xml";
} else if (returnFileName.equals("rss")) {
contentType = "application/rss+xml";
} else if (returnFileName.equals("mml")) {
contentType = "text/mathml";
} else if (returnFileName.equals("txt")) {
contentType = "text/plain";
} else if (returnFileName.equals("jad")) {
contentType = "text/vnd.sun.j2me.app-descriptor";
} else if (returnFileName.equals("wml")) {
contentType = "text/vnd.wap.wml";
} else if (returnFileName.equals("htc")) {
contentType = "text/x-component";
} else if (returnFileName.equals("png")) {
contentType = "image/png";
} else if (returnFileName.equals("tif") || returnFileName.equals("tiff")) {
contentType = "image/tiff";
} else if (returnFileName.equals("wbmp")) {
contentType = "image/vnd.wap.wbmp";
} else if (returnFileName.equals("ico")) {
contentType = "image/x-icon";
} else if (returnFileName.equals("jng")) {
contentType = "image/x-jng";
} else if (returnFileName.equals("bmp")) {
contentType = "image/x-ms-bmp";
} else if (returnFileName.equals("svg")) {
contentType = "image/svg+xml";
} else if (returnFileName.equals("jar") || returnFileName.equals("var")
|| returnFileName.equals("ear")) {
contentType = "application/java-archive";
} else if (returnFileName.equals("doc")) {
contentType = "application/msword";
} else if (returnFileName.equals("pdf")) {
contentType = "application/pdf";
} else if (returnFileName.equals("rtf")) {
contentType = "application/rtf";
} else if (returnFileName.equals("xls")) {
contentType = "application/vnd.ms-excel";
} else if (returnFileName.equals("ppt")) {
contentType = "application/vnd.ms-powerpoint";
} else if (returnFileName.equals("7z")) {
contentType = "application/x-7z-compressed";
} else if (returnFileName.equals("rar")) {
contentType = "application/x-rar-compressed";
} else if (returnFileName.equals("swf")) {
contentType = "application/x-shockwave-flash";
} else if (returnFileName.equals("rpm")) {
contentType = "application/x-redhat-package-manager";
} else if (returnFileName.equals("der") || returnFileName.equals("pem")
|| returnFileName.equals("crt")) {
contentType = "application/x-x509-ca-cert";
} else if (returnFileName.equals("xhtml")) {
contentType = "application/xhtml+xml";
} else if (returnFileName.equals("zip")) {
contentType = "application/zip";
} else if (returnFileName.equals("mid") || returnFileName.equals("midi")
|| returnFileName.equals("kar")) {
contentType = "audio/midi";
} else if (returnFileName.equals("mp3")) {
contentType = "audio/mpeg";
} else if (returnFileName.equals("ogg")) {
contentType = "audio/ogg";
} else if (returnFileName.equals("m4a")) {
contentType = "audio/x-m4a";
} else if (returnFileName.equals("ra")) {
contentType = "audio/x-realaudio";
} else if (returnFileName.equals("3gpp")
|| returnFileName.equals("3gp")) {
contentType = "video/3gpp";
} else if (returnFileName.equals("mp4")) {
contentType = "video/mp4";
} else if (returnFileName.equals("mpeg")
|| returnFileName.equals("mpg")) {
contentType = "video/mpeg";
} else if (returnFileName.equals("mov")) {
contentType = "video/quicktime";
} else if (returnFileName.equals("flv")) {
contentType = "video/x-flv";
} else if (returnFileName.equals("m4v")) {
contentType = "video/x-m4v";
} else if (returnFileName.equals("mng")) {
contentType = "video/x-mng";
} else if (returnFileName.equals("asx") || returnFileName.equals("asf")) {
contentType = "video/x-ms-asf";
} else if (returnFileName.equals("wmv")) {
contentType = "video/x-ms-wmv";
} else if (returnFileName.equals("avi")) {
contentType = "video/x-msvideo";
}
return contentType;
} /**
* 向浏览器发送文件下载,支持断点续传
* @param file 要下载的文件
* @param request 请求对象
* @param response 响应对象
* @return 返回错误信息,无错误信息返回null
*/
public static String downFile(File file, HttpServletRequest request, HttpServletResponse response){
return downFile(file, request, response, null);
} /**
* 向浏览器发送文件下载,支持断点续传
* @param file 要下载的文件
* @param request 请求对象
* @param response 响应对象
* @param fileName 指定下载的文件名
* @return 返回错误信息,无错误信息返回null
*/
public static String downFile(File file, HttpServletRequest request, HttpServletResponse response, String fileName){
String error = null;
if (file != null && file.exists()) {
if (file.isFile()) {
if (file.length() <= 0) {
error = "该文件是一个空文件。";
}
if (!file.canRead()) {
error = "该文件没有读取权限。";
}
} else {
error = "该文件是一个文件夹。";
}
} else {
error = "文件已丢失或不存在!";
}
if (error != null){
logger.debug("---------------" + file + " " + error);
return error;
} long fileLength = file.length(); // 记录文件大小
long pastLength = 0; // 记录已下载文件大小
int rangeSwitch = 0; // 0:从头开始的全文下载;1:从某字节开始的下载(bytes=27000-);2:从某字节开始到某字节结束的下载(bytes=27000-39000)
long toLength = 0; // 记录客户端需要下载的字节段的最后一个字节偏移量(比如bytes=27000-39000,则这个值是为39000)
long contentLength = 0; // 客户端请求的字节总量
String rangeBytes = ""; // 记录客户端传来的形如“bytes=27000-”或者“bytes=27000-39000”的内容
RandomAccessFile raf = null; // 负责读取数据
OutputStream os = null; // 写出数据
OutputStream out = null; // 缓冲
byte b[] = new byte[1024]; // 暂存容器 if (request.getHeader("Range") != null) { // 客户端请求的下载的文件块的开始字节
response.setStatus(javax.servlet.http.HttpServletResponse.SC_PARTIAL_CONTENT);
logger.debug("request.getHeader(\"Range\") = " + request.getHeader("Range"));
rangeBytes = request.getHeader("Range").replaceAll("bytes=", "");
if (rangeBytes.indexOf('-') == rangeBytes.length() - 1) {// bytes=969998336-
rangeSwitch = 1;
rangeBytes = rangeBytes.substring(0, rangeBytes.indexOf('-'));
pastLength = Long.parseLong(rangeBytes.trim());
contentLength = fileLength - pastLength; // 客户端请求的是 969998336 之后的字节
} else { // bytes=1275856879-1275877358
rangeSwitch = 2;
String temp0 = rangeBytes.substring(0, rangeBytes.indexOf('-'));
String temp2 = rangeBytes.substring(rangeBytes.indexOf('-') + 1, rangeBytes.length());
pastLength = Long.parseLong(temp0.trim()); // bytes=1275856879-1275877358,从第 1275856879 个字节开始下载
toLength = Long.parseLong(temp2); // bytes=1275856879-1275877358,到第 1275877358 个字节结束
contentLength = toLength - pastLength; // 客户端请求的是 1275856879-1275877358 之间的字节
}
} else { // 从开始进行下载
contentLength = fileLength; // 客户端要求全文下载
} // 如果设设置了Content-Length,则客户端会自动进行多线程下载。如果不希望支持多线程,则不要设置这个参数。 响应的格式是:
// Content-Length: [文件的总大小] - [客户端请求的下载的文件块的开始字节]
// ServletActionContext.getResponse().setHeader("Content- Length", new Long(file.length() - p).toString());
response.reset(); // 告诉客户端允许断点续传多线程连接下载,响应的格式是:Accept-Ranges: bytes
if (pastLength != 0) {
response.setHeader("Accept-Ranges", "bytes");// 如果是第一次下,还没有断点续传,状态是默认的 200,无需显式设置;响应的格式是:HTTP/1.1 200 OK
// 不是从最开始下载, 响应的格式是: Content-Range: bytes [文件块的开始字节]-[文件的总大小 - 1]/[文件的总大小]
logger.debug("---------------不是从开始进行下载!服务器即将开始断点续传...");
switch (rangeSwitch) {
case 1: { // 针对 bytes=27000- 的请求
String contentRange = new StringBuffer("bytes ").append(new Long(pastLength).toString()).append("-")
.append(new Long(fileLength - 1).toString()).append("/").append(new Long(fileLength).toString()).toString();
response.setHeader("Content-Range", contentRange);
break;
}
case 2: { // 针对 bytes=27000-39000 的请求
String contentRange = rangeBytes + "/" + new Long(fileLength).toString();
response.setHeader("Content-Range", contentRange);
break;
}
default: {
break;
}
}
} else {
// 是从开始下载
logger.debug("---------------是从开始进行下载!");
} try {
response.addHeader("Content-Disposition", "attachment; filename=\"" +
Encodes.urlEncode(StringUtils.isBlank(fileName) ? file.getName() : fileName) + "\"");
response.setContentType(getContentType(file.getName())); // set the MIME type.
response.addHeader("Content-Length", String.valueOf(contentLength));
os = response.getOutputStream();
out = new BufferedOutputStream(os);
raf = new RandomAccessFile(file, "r");
try {
switch (rangeSwitch) {
case 0: { // 普通下载,或者从头开始的下载 同1
}
case 1: { // 针对 bytes=27000- 的请求
raf.seek(pastLength); // 形如 bytes=969998336- 的客户端请求,跳过 969998336 个字节
int n = 0;
while ((n = raf.read(b, 0, 1024)) != -1) {
out.write(b, 0, n);
}
break;
}
case 2: { // 针对 bytes=27000-39000 的请求
raf.seek(pastLength); // 形如 bytes=1275856879-1275877358 的客户端请求,找到第 1275856879 个字节
int n = 0;
long readLength = 0; // 记录已读字节数
while (readLength <= contentLength - 1024) {// 大部分字节在这里读取
n = raf.read(b, 0, 1024);
readLength += 1024;
out.write(b, 0, n);
}
if (readLength <= contentLength) { // 余下的不足 1024 个字节在这里读取
n = raf.read(b, 0, (int) (contentLength - readLength));
out.write(b, 0, n);
}
break;
}
default: {
break;
}
}
out.flush();
logger.debug("---------------下载完成!");
} catch (IOException ie) {
/**
* 在写数据的时候, 对于 ClientAbortException 之类的异常,
* 是因为客户端取消了下载,而服务器端继续向浏览器写入数据时, 抛出这个异常,这个是正常的。
* 尤其是对于迅雷这种吸血的客户端软件, 明明已经有一个线程在读取 bytes=1275856879-1275877358,
* 如果短时间内没有读取完毕,迅雷会再启第二个、第三个。。。线程来读取相同的字节段, 直到有一个线程读取完毕,迅雷会 KILL
* 掉其他正在下载同一字节段的线程, 强行中止字节读出,造成服务器抛 ClientAbortException。
* 所以,我们忽略这种异常
*/
logger.debug("提醒:向客户端传输时出现IO异常,但此异常是允许的,有可能客户端取消了下载,导致此异常,不用关心!");
}
} catch (Exception e) {
logger.error(e.getMessage(), e);
} finally {
if (out != null) {
try {
out.close();
} catch (IOException e) {
logger.error(e.getMessage(), e);
}
}
if (raf != null) {
try {
raf.close();
} catch (IOException e) {
logger.error(e.getMessage(), e);
}
}
}
return null;
} /**
* 修正路径,将 \\ 或 / 等替换为 File.separator
* @param path 待修正的路径
* @return 修正后的路径
*/
public static String path(String path){
String p = StringUtils.replace(path, "\\", "/");
p = StringUtils.join(StringUtils.split(p, "/"), "/");
if (!StringUtils.startsWithAny(p, "/") && StringUtils.startsWithAny(path, "\\", "/")){
p += "/";
}
if (!StringUtils.endsWithAny(p, "/") && StringUtils.endsWithAny(path, "\\", "/")){
p = p + "/";
}
if (path != null && path.startsWith("/")){
p = "/" + p; // linux下路径
}
return p;
} /**
* 获目录下的文件列表
* @param dir 搜索目录
* @param searchDirs 是否是搜索目录
* @return 文件列表
*/
public static List<String> findChildrenList(File dir, boolean searchDirs) {
List<String> files = Lists.newArrayList();
for (String subFiles : dir.list()) {
File file = new File(dir + "/" + subFiles);
if (((searchDirs) && (file.isDirectory())) || ((!searchDirs) && (!file.isDirectory()))) {
files.add(file.getName());
}
}
return files;
} /**
* 获取文件扩展名(返回小写)
* @param fileName 文件名
* @return 例如:test.jpg 返回: jpg
*/
public static String getFileExtension(String fileName) {
if ((fileName == null) || (fileName.lastIndexOf(".") == -1) || (fileName.lastIndexOf(".") == fileName.length() - 1)) {
return null;
}
return StringUtils.lowerCase(fileName.substring(fileName.lastIndexOf(".") + 1));
} /**
* 获取文件名,不包含扩展名
* @param fileName 文件名
* @return 例如:d:\files\test.jpg 返回:d:\files\test
*/
public static String getFileNameWithoutExtension(String fileName) {
if ((fileName == null) || (fileName.lastIndexOf(".") == -1)) {
return null;
}
return fileName.substring(0, fileName.lastIndexOf("."));
} /**
* 获取文件大小
* @param file
* @return
* @author guogf
*/
public static String getFileSize(MultipartFile file) {
DecimalFormat df = new DecimalFormat("0.00");
String fileSizeString = "";
if (file.getSize() < 1024) {
fileSizeString = df.format((double) file.getSize()) + "B";
} else if (file.getSize() < 1048576) {
fileSizeString = df.format((double) file.getSize() / 1024) + "K";
} else if (file.getSize() < 1073741824) {
fileSizeString = df.format((double) file.getSize() / 1048576) + "M";
} else {
fileSizeString = df.format((double) file.getSize() / 1073741824) + "G";
}
return fileSizeString;
}
}