记一次ckeditor上传图片到服务器问题

package com.util;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.List;

import java.io.File;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.commons.fileupload.FileItem;
import org.apache.commons.fileupload.FileItemFactory;
import org.apache.commons.fileupload.disk.DiskFileItemFactory;
import org.apache.commons.fileupload.servlet.ServletFileUpload;
import org.apache.struts2.ServletActionContext;

import util.DateUtil;
import util.PropertiesUtil;

public class ImageUploadServlet extends HttpServlet{

    private static final long serialVersionUID = 1L;

    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        this.doPost(request, response);
    }

    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
        request.setCharacterEncoding("UTF-8");
        response.setCharacterEncoding("UTF-8");
        PrintWriter out=response.getWriter();
        FileItemFactory factory=new DiskFileItemFactory();
        ServletFileUpload upload=new ServletFileUpload(factory);
        try {
            List<FileItem> list=upload.parseRequest(request);
            for(FileItem fileItem:list){
                String imageName=DateUtil.getCurrentDateStr();
      File file=new File(ServletActionContext.getServletContext().getRealPath("/userImage")+imageName+"."+fileItem.getName().split("\\.")[1]);
      String newPath=ServletActionContext.getServletContext().getRealPath("/userImage")+"/"+imageName+"."+fileItem.getName().split("\\.")[1];
                fileItem.write(file);
                String callback = request.getParameter("CKEditorFuncNum");
                out.println("<script type=\"text/javascript\">");
                out.println("window.parent.CKEDITOR.tools.callFunction("+callback + ",'"+ newPath + "',''" + ")");
                out.println("</script>");
                out.flush();
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

package com.util;

import java.text.SimpleDateFormat;
import java.util.Date;

public class DateUtil {

    public static String formatDate(Date date,String format){
        String result="";
        SimpleDateFormat sdf=new SimpleDateFormat(format);
        if(date!=null){
            result=sdf.format(date);
        }
        return result;
    }

    public static Date formatString(String str,String format) throws Exception{
        if(StringUtil.isEmpty(str)){
            return null;
        }
        SimpleDateFormat sdf=new SimpleDateFormat(format);
        return sdf.parse(str);
    }

    public static String getCurrentDateStr()throws Exception{
        Date date=new Date();
        SimpleDateFormat sdf=new SimpleDateFormat("yyyyMMddhhmmss");
        return sdf.format(date);
    }
}

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package com.util;

import java.io.IOException;
import java.io.InputStream;
import java.util.Properties;

public class PropertiesUtil {

    public static String getValue(String key){
        Properties prop=new Properties();
        InputStream in=new PropertiesUtil().getClass().getResourceAsStream("/text.properties");
        try {
            prop.load(in);
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        return prop.getProperty(key);
    }

*************

text.properties

userImage=userImage/
pageSize=5
backPageSize=3
imagePath=webapps//ROOT/userImage/
imageFile=userImage