React,Native封装Toast,React,Native,加载Loading组件

<%@ page language="java" contentType="text/html; charset=UTF-8"
 pageEncoding="UTF-8"%>





css" href="${pageContext.request.contextPath}/manage/Widget/webuploader/0.1.5/webuploader.css" rel="external nofollow" >




 
图片上传
 
 

 
 

 

 
选择文件
 
  

package com.shopping.controller;

import java.io.File;
import java.io.IOException;
import java.util.Map;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.multipart.MultipartFile;
import org.springframework.web.multipart.MultipartHttpServletRequest;

/**
 * @author MAZN 
 * @date 创建时间：2017年5月2日 下午10:02:36
 * @parameter
 * @return 
 */
@Controller
public class UploadImgController {
 int counter = 0;


 @RequestMapping("/uploader")
 public void upload(HttpServletRequest request,HttpServletResponse response){

 //String fileName;
 // File tagetFile;
 System.out.println("收到图片!");
 MultipartHttpServletRequest Murequest = (MultipartHttpServletRequest)request;
 Map files = Murequest.getFileMap();//得到文件map对象
 //String upaloadUrl = request.getSession().getServletContext().getRealPath("/")+"upload/";//得到当前工程路径拼接上文件名
 String t=Thread.currentThread().getContextClassLoader().getResource("").getPath(); 
 int num=t.indexOf(".metadata");
 String small = "small";
 String upaloadUrl=t.substring(1,num).replace('/', '\')+"image\"+small+"\";
 //+"项目名\WebContent\文件";
 File dir = new File(upaloadUrl);
 System.out.println(upaloadUrl);
 String img_url = upaloadUrl;//图片路径
 if(!dir.exists())//目录不存在则创建
 dir.mkdirs();
 for(MultipartFile file :files.values()){
 counter++;
 String fileName=file.getOriginalFilename();
 File tagetFile = new File(upaloadUrl+fileName);//创建文件对象
 img_url += fileName;
 if(!tagetFile.exists()){//文件名不存在 则新建文件，并将文件复制到新建文件中
  try {
  tagetFile.createNewFile();
  } catch (IOException e) {
  e.printStackTrace();
  }
  try {
  file.transferTo(tagetFile);
  } catch (IllegalStateException e) {
  e.printStackTrace();
  } catch (IOException e) {
  e.printStackTrace();
  }

 }
 }
 System.out.println(img_url);
 System.out.println("接收完毕"+counter);
 }
}