关于Kindeditor上传照片不回显的问题

项目中用到了Kindeditor，需要把图片上传到服务器上，然后并显示出来。以前一直显示不出来，一看路径是本地磁盘的路径这样是肯定显示不出来的，所以需要在后台把saveUrl修改一下就可以了。需要修改成相对路径，这样图片就能正常显示了

以下为Java代码：

public Object fileUpload(){String savePath=this.getCurSession().getServletContext().getRealPath("")+"/attached";        //文件保存路径String saveUrl=this.getCurRequest().getContextPath()+"/attachedimage/";//相对路径        //String saveUrl=this.getCurSession().getServletContext().getRealPath("")+"/attachedimage/";//绝对路径        HttpServletResponse response=ServletActionContext.getResponse();        PrintWriter out = null; //输出流         try {              out = response.getWriter();          } catch (IOException e1) {              e1.printStackTrace();          }          //定义能上传的文件格式        HashMap<String, String> extMap=new HashMap<String, String>();        extMap.put("image", "gif,jpg,jpeg,png,bmp");        extMap.put("flash", "swf,flv");          extMap.put("media", "swf,flv,mp3,wav,wma,wmv,mid,avi,mpg,asf,rm,rmvb");          extMap.put("file", "doc,docx,xls,xlsx,ppt,htm,html,xml,txt,zip,rar,gz,bz2");         //最大的文件大小        long maxSize = 1000000;        response.setContentType("text/html; charset=UTF-8");        if(!ServletFileUpload.isMultipartContent(this.getCurRequest())){        return getError("请选择文件");        }        File uploadDir=new File(savePath);        if(!uploadDir.isDirectory()){        uploadDir.mkdirs();        //return getError("上传目录不存在");        }        if(!uploadDir.canWrite()){        return getError("没有权利");        }        String dirName=this.getCurRequest().getParameter("dir");        if(dirName==null){        dirName="image";        }        if(!extMap.containsKey(dirName)){        return getError("目录名不正确");        }        savePath+=dirName+"/";        //saveUrl+=dirName+"/";        File saveDirFile=new File(savePath);        if(!saveDirFile.exists()){        saveDirFile.mkdirs();        }        SimpleDateFormat sdf=new SimpleDateFormat("yyyyMMdd");        String ymd=sdf.format(new Date());        savePath+=ymd+"/";        saveUrl+=ymd+"/";        File dirFile=new File(savePath);        if(!dirFile.exists()){        dirFile.mkdirs();        }        FileItemFactory factory=new DiskFileItemFactory();        ServletFileUpload upload=new ServletFileUpload(factory);        upload.setHeaderEncoding("UTF-8");        MultiPartRequestWrapper  wrapper = (MultiPartRequestWrapper) this.getCurRequest();        String fileName=wrapper.getFileNames("imgFile")[0];        File file=wrapper.getFiles("imgFile")[0];        String fileExt = fileName.substring(fileName.lastIndexOf(".") + 1).toLowerCase();          if (!Arrays.<String> asList(extMap.get(dirName).split(",")).contains(fileExt)) {              out.println(getError("上传文件扩展名是不允许的扩展名。\n只允许" + extMap.get(dirName)                      + "格式。"));              return null;          }        if(file.length()>maxSize){        out.print(getError("上传文件大小超过限制"));        return null;        }        String newImgName = sdf.format(new Date()) + "_"                  + new Random().nextInt(1000) + "." + fileExt;          byte[] buffer = new byte[1024];        FileOutputStream fos;          // 获取内存中当前文件输入流          InputStream in;          try {              fos = new FileOutputStream(savePath + "/" + newImgName);              in = new FileInputStream(file);              int num = 0;              while ((num = in.read(buffer)) > 0) {                  fos.write(buffer, 0, num);              }              in.close();              fos.close();          } catch (FileNotFoundException e1) {              e1.printStackTrace();          } catch (IOException e) {              e.printStackTrace();          }         com.alibaba.fastjson.JSONObject obj = new com.alibaba.fastjson.JSONObject();          obj.put("error", 0);          obj.put("url", saveUrl + "/" + newImgName);          out.println(obj.toJSONString());          return null;  }