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package com.mandi.servlet.file.impl; |
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import java.io.BufferedInputStream; |
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import java.io.File; |
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import java.io.FileInputStream; |
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import java.io.IOException; |
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import java.io.OutputStream; |
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import java.net.URLEncoder; |
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import java.nio.file.Files; |
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import java.nio.file.Path; |
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import java.nio.file.Paths; |
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import java.util.ArrayList; |
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import java.util.HashMap; |
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import java.util.Iterator; |
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import java.util.List; |
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import java.util.Map; |
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import java.util.Map.Entry; |
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import java.util.UUID; |
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import javax.servlet.http.HttpServletRequest; |
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import javax.servlet.http.HttpServletResponse; |
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import org.apache.commons.fileupload.FileItem; |
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import org.apache.commons.fileupload.disk.DiskFileItemFactory; |
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import org.apache.commons.fileupload.servlet.ServletFileUpload; |
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import org.apache.log4j.Logger; |
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import org.springframework.stereotype.Service; |
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import org.springframework.web.multipart.MultipartFile; |
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import org.springframework.web.multipart.MultipartHttpServletRequest; |
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import com.mandi.servlet.file.FileLoad; |
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@Service |
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public class FileLoadImpl implements FileLoad{ |
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private Logger log=Logger.getLogger(FileLoadImpl.class); |
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@SuppressWarnings("unchecked") |
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@Override |
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public String uploadFile(String dest/*相对位置*/, HttpServletRequest request,boolean randname) { |
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String directory=""; |
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String filenames="";// |
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if(dest==null) |
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directory=request.getSession().getServletContext().getRealPath(""); |
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else |
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directory=request.getSession().getServletContext().getRealPath(dest); |
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File file=new File(directory); |
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if(!file.exists()) |
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{ |
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file.mkdirs(); |
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} |
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DiskFileItemFactory dfif=new DiskFileItemFactory(); |
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ServletFileUpload sf=new ServletFileUpload(dfif); |
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sf.setHeaderEncoding("utf-8"); |
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List<FileItem> list=null; |
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try{ |
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list=sf.parseRequest(request); |
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Iterator<FileItem> it=list.iterator(); |
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while(it.hasNext()) |
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{ |
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FileItem fi=it.next(); |
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if(fi.isFormField()) |
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continue; |
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String name1=fi.getName(); |
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if(randname==true) |
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{ |
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int point=name1.lastIndexOf("."); |
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if(point>0 && name1.length()>(point+1)) |
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{ |
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name1=name1.substring(point); |
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} |
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name1=UUID.randomUUID()+name1; |
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} |
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String filename="";//file.getPath(); |
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if(directory.endsWith(File.separator)) |
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filename=directory+name1; |
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else |
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filename=directory+File.separator+name1; |
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File file1=new File(filename); |
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fi.write(file1); |
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filenames=dest.endsWith(File.separator)?(dest+name1):(dest+"/"+name1);//file relative path |
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filenames=request.getServletContext().getContextPath()+filenames; |
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} |
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}catch (Exception e) { |
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log.error("uploadFile error"); |
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} |
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return filenames; |
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} |
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/** |
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* |
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* @return |
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* @author mengly |
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* @version 创建时间:2016年8月6日 下午5:42:49 |
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*/ |
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public Map<String, Object> uploadFileRP(String dir,MultipartHttpServletRequest request,boolean randname){ |
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if(dir==null) |
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dir=request.getSession().getServletContext().getRealPath(""); |
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Path p=Paths.get(dir); |
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if(!Files.exists(p)) |
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try { |
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Files.createDirectories(p); |
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} catch (IOException e) { |
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e.printStackTrace(); |
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return null; |
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} |
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if(!dir.endsWith(File.separator)) |
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dir+=File.separator; |
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Map<String,MultipartFile> mpfs=request.getFileMap(); |
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for (Entry<String,MultipartFile> en : mpfs.entrySet()) { |
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MultipartFile mf=en.getValue(); |
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if(mf.isEmpty()) |
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continue; |
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Map<String, Object> mp=new HashMap<String, Object>(); |
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String uuid=UUID.randomUUID().toString(); |
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mp.put("name", mf.getOriginalFilename()); |
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mp.put("size", mf.getSize()); |
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mp.put("uuid", uuid); |
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String fullp=dir+uuid+mf.getOriginalFilename(); |
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Path pf=Paths.get(fullp); |
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try { |
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Files.copy(mf.getInputStream(), pf); |
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mp.put("url", fullp); |
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return mp; |
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} catch (IOException e) { |
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e.printStackTrace(); |
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} |
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} |
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return null; |
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} |
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@SuppressWarnings("unchecked") |
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@Override |
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public List<Object> uploadFile_map(String dest,HttpServletRequest request,boolean randname){ |
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List<Object> list1=new ArrayList<Object>(); |
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String directory=""; |
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String filenames="";// |
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if(dest==null) |
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directory=request.getSession().getServletContext().getRealPath(""); |
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else |
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directory=request.getSession().getServletContext().getRealPath(dest); |
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File file=new File(directory); |
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if(!file.exists()) |
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{ |
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file.mkdirs(); |
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} |
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DiskFileItemFactory dfif=new DiskFileItemFactory(); |
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ServletFileUpload sf=new ServletFileUpload(dfif); |
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sf.setHeaderEncoding("utf-8"); |
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List<FileItem> list=null; |
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try{ |
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list=sf.parseRequest(request); |
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Iterator<FileItem> it=list.iterator(); |
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while(it.hasNext()) |
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{ |
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Map<String, Object> mp=new HashMap<String, Object>(); |
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FileItem fi=it.next(); |
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mp.put("name", fi.getName()); |
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mp.put("size", fi.getSize()); |
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if(fi.isFormField()) |
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continue; |
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String name1=fi.getName(); |
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if(randname==true) |
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{ |
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int point=name1.lastIndexOf("."); |
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if(point>0 && name1.length()>(point+1)) |
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{ |
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name1=name1.substring(point); |
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} |
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name1=UUID.randomUUID()+name1; |
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} |
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String filename="";//file.getPath(); |
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if(directory.endsWith(File.separator)) |
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filename=directory+name1; |
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else |
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filename=directory+File.separator+name1; |
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File file1=new File(filename); |
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fi.write(file1); |
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filenames=dest.endsWith(File.separator)?(dest+name1):(dest+"/"+name1);//file relative path |
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mp.put("url", filenames); |
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list1.add(mp); |
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} |
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}catch (Exception e) { |
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log.error("uploadFile error"); |
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} |
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return list1; |
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} |
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@SuppressWarnings("unchecked") |
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@Override |
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public List<Object> uploadFile_map(String dest,HttpServletRequest request,boolean randname,long size){ |
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List<Object> list1=new ArrayList<Object>(); |
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String directory=""; |
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String filenames="";// |
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if(dest==null) |
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directory=request.getSession().getServletContext().getRealPath(""); |
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else |
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directory=request.getSession().getServletContext().getRealPath(dest); |
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File file=new File(directory); |
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if(!file.exists()) |
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{ |
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file.mkdirs(); |
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} |
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DiskFileItemFactory dfif=new DiskFileItemFactory(); |
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ServletFileUpload sf=new ServletFileUpload(dfif); |
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sf.setHeaderEncoding("utf-8"); |
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List<FileItem> list=null; |
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try{ |
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list=sf.parseRequest(request); |
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Iterator<FileItem> it=list.iterator(); |
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while(it.hasNext()) |
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{ |
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Map<String, Object> mp=new HashMap<String, Object>(); |
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FileItem fi=it.next(); |
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mp.put("name", fi.getName()); |
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mp.put("size", fi.getSize()); |
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if(fi.isFormField()) |
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{ |
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continue; |
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} |
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if(size!=0) |
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{ |
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if(fi.getSize()>size) |
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{ |
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log.info("file size 超过限制值!!"); |
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continue; |
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} |
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} |
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String name1=fi.getName(); |
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if(randname==true) |
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{ |
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int point=name1.lastIndexOf("."); |
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if(point>0 && name1.length()>(point+1)) |
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{ |
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name1=name1.substring(point); |
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} |
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name1=UUID.randomUUID()+name1; |
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} |
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String filename="";//file.getPath(); |
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if(directory.endsWith(File.separator)) |
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filename=directory+name1; |
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else |
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filename=directory+File.separator+name1; |
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File file1=new File(filename); |
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fi.write(file1); |
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filenames=dest.endsWith(File.separator)?(dest+name1):(dest+"/"+name1);//file relative path |
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mp.put("url", filenames); |
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list1.add(mp); |
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} |
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}catch (Exception e) { |
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log.error("uploadFile error"); |
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} |
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return list1; |
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} |
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@Override |
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public Map<String, Object> uploadFile_map(String dest,HttpServletRequest request,FileItem fi,boolean randname,long size){ |
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if(fi==null) |
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return null; |
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String directory=""; |
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String filenames="";// |
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if(dest==null) |
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directory=request.getSession().getServletContext().getRealPath(""); |
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else |
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directory=request.getSession().getServletContext().getRealPath(dest); |
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File file=new File(directory); |
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if(!file.exists()) |
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{ |
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file.mkdirs(); |
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} |
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Map<String, Object> mp=new HashMap<String, Object>(); |
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try{ |
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mp.put("name", fi.getName()); |
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mp.put("size", fi.getSize()); |
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if(fi.isFormField()) |
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{ |
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return null; |
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} |
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if(size!=0) |
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{ |
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if(fi.getSize()>size) |
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{ |
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log.info("file size 超过限制值!!"); |
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return null; |
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} |
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} |
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String name1=fi.getName(); |
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if(randname==true) |
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{ |
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int point=name1.lastIndexOf("."); |
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if(point>0 && name1.length()>(point+1)) |
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{ |
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name1=name1.substring(point); |
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} |
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name1=UUID.randomUUID()+name1; |
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} |
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String filename="";//file.getPath(); |
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if(directory.endsWith(File.separator)) |
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filename=directory+name1; |
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else |
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filename=directory+File.separator+name1; |
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File file1=new File(filename); |
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fi.write(file1); |
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filenames=dest.endsWith(File.separator)?(dest+name1):(dest+"/"+name1);//file relative path |
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mp.put("url", filenames); |
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}catch (Exception e) { |
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log.error("uploadFile error"); |
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} |
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return mp; |
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} |
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@Override |
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public void downloadFile(String displayname, String source, |
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HttpServletResponse response) { |
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if(source==null) |
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return; |
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File file=new File(source); |
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if(!file.exists()) |
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return; |
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response.setContentType("application/x-download"); |
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if(displayname==null) |
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displayname=file.getName(); |
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try{ |
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displayname=URLEncoder.encode(displayname,"utf-8"); |
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response.setHeader("Content-Disposition", "attachment; filename=\""+displayname+"\""); |
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FileInputStream fis=new FileInputStream(file); |
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BufferedInputStream bis=new BufferedInputStream(fis); |
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OutputStream out1=response.getOutputStream(); |
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byte[] bytes=new byte[1024*4]; |
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int length=-1; |
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while((length=bis.read(bytes))!=-1) |
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{ |
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out1.write(bytes, 0, length); |
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} |
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out1.flush(); |
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bis.close(); |
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fis.close(); |
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out1.close(); |
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}catch (Exception e) { |
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log.error("downloadFile error"); |
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} |
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file.delete(); |
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} |
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@Override |
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public void downloadFile(String desplayname, String source, |
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HttpServletResponse response, HttpServletRequest request) { |
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File file=new File(source); |
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if(!file.exists()) |
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return; |
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long range=0; |
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if(request.getHeader("Range")!=null) |
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{ |
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response . setStatus ( javax . servlet . http . HttpServletResponse . SC_PARTIAL_CONTENT ) ; |
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range=Long . parseLong ( request . getHeader ( "Range" ) . replaceAll ( "bytes=" , "" ) . replaceAll ( "-" , "" ) ) ; |
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} |
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response . setHeader ( "Content-Length" , new Long ( file.length() - range ) . toString ( ) ) ; |
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if(range!=0) |
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{ |
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response.setHeader( "Content-Range", "bytes " + new Long(range).toString()+ "-"+new Long(file.length()-1).toString()+"/"+new Long(file.length()).toString()); |
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} |
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response.setContentType("application/x-download"); |
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response.setContentType ( "application/octet-stream"); |
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try { |
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String fn=URLEncoder.encode(desplayname,"utf-8"); |
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response . setHeader ( "Content-Disposition","attachment;filename=\""+fn+"\""); |
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FileInputStream fis=new FileInputStream(file); |
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BufferedInputStream bis=new BufferedInputStream(fis); |
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bis.skip(range); |
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OutputStream out1=response.getOutputStream(); |
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byte[] bytes=new byte[1024*4]; |
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int length=-1; |
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while((length=bis.read(bytes))!=-1) |
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{ |
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out1.write(bytes, 0, length); |
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} |
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out1.flush(); |
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bis.close(); |
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fis.close(); |
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} catch (Exception e) { |
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log.error("downloadFile error"+e.getMessage()); |
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}finally{ |
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} |
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} |
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@Override |
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public String realpath2path(String localpath, HttpServletRequest request) { |
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String realpath=request.getServletContext().getRealPath(""); |
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if(localpath==null) |
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return "/"; |
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if(localpath.lastIndexOf(realpath)!=0) |
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return "/"; |
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realpath=localpath.substring(realpath.length()); |
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if(realpath.length()>0 && !realpath.startsWith(File.separator)&&!realpath.startsWith("/")) |
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{ |
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realpath="/"+realpath; |
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} |
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realpath=realpath.replaceAll("\\\\", "/"); |
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return realpath; |
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} |
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} |