上传图片

package com.hlj.util;

 

import java.io.File;

import java.io.IOException;

import java.text.SimpleDateFormat;

import java.util.Date;

 

import org.apache.commons.io.FileUtils;

import org.apache.struts2.ServletActionContext;

 

 

 

public class UploadImage {

public static String uploadImage(File file,String fileName,String oldFilePath){

//根据图片地址查找原图片并删除

 if(oldFilePath!=null){

 File oldFile = new File(ServletActionContext.getServletContext().getRealPath("/frontJsp/wisEstateFront")+"\\"+oldFilePath);

 if(oldFile.exists()){

 oldFile.delete();

 }

 }

 //文件名为日期格式

 SimpleDateFormat sf = new SimpleDateFormat("yyyyMMddHHmmss");

 //上传文件夹每天产生一个

 SimpleDateFormat sf1 = new SimpleDateFormat("yyyy-MM-dd");

 Date curDate = new Date(System.currentTimeMillis());

 String now = sf.format(curDate);

 String dayPath = sf1.format(curDate);

 String path = ServletActionContext.getServletContext().getRealPath("/frontJsp/wisEstateFront/uploads")+"\\"+dayPath;

 File realpath = new File(path);

 if(!realpath.exists()){

 realpath.mkdirs();

 }

 String newFileName = now+fileName.substring(fileName.lastIndexOf("."));

 File savefile = new File(realpath, newFileName);

try {

FileUtils.copyFile(file, savefile);

} catch (IOException e) {

e.printStackTrace();

}

String image_path = path.substring(path.lastIndexOf("uploads"))+"\\"+newFileName;

//返回处理之后的图片地址

return image_path;

}

public static String uploadImageByPath(File file,String fileName,String oldFilePath,String where){

//根据图片地址查找原图片并删除

 if(oldFilePath!=null){

 File oldFile = new File(ServletActionContext.getServletContext().getRealPath(where)+"/"+oldFilePath);

 if(oldFile.exists()){

 oldFile.delete();

 }

 }

 //文件名为日期格式

 SimpleDateFormat sf = new SimpleDateFormat("yyyyMMddHHmmss");

 //上传文件夹每天产生一个

 SimpleDateFormat sf1 = new SimpleDateFormat("yyyy-MM-dd");

 Date curDate = new Date(System.currentTimeMillis());

 String now = sf.format(curDate);

 String dayPath = sf1.format(curDate);

 String path = ServletActionContext.getServletContext().getRealPath(where+"/uploads")+"/"+dayPath;

 File realpath = new File(path);

 if(!realpath.exists()){

 realpath.mkdirs();

 }

 String newFileName = now+fileName.substring(fileName.lastIndexOf("."));

 File savefile = new File(realpath, newFileName);

try {

FileUtils.copyFile(file, savefile);

} catch (IOException e) {

e.printStackTrace();

}

String image_path = path.substring(path.lastIndexOf("uploads"))+"/"+newFileName;

//返回处理之后的图片地址

return image_path;

}

}