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
     
       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("
      ");                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);    }

 

 

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text.properties

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