多文件上傳就是改良一個方法把MultipartFile類換成CommonsMultipartFile類，因為上傳多個文件用數組方式的話MultipartFile類不能初始化，它不支持數組
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package com.meng.upload;import java.io.File;import java.io.FileNotFoundException;import java.io.FileOutputStream;import javax.servlet.http.HttpServletRequest;import org.springframework.stereotype.Controller;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.RequestMethod;import org.springframework.web.bind.annotation.RequestParam;import org.springframework.web.multipart.MultipartFile;import org.springframework.web.multipart.commons.CommonsMultipartFile;@Controllerpublic class upload { @RequestMapping(value="/upload",method=RequestMethod.POST) public String upload(@RequestParam("file1") CommonsMultipartFile[] file1, HttpServletRequest request) { for (CommonsMultipartFile commonsMultipartFile : file1) { try { File file = new File(request.getServletContext().getRealPath("upload"), System.currentTimeMillis() + "_" + commonsMultipartFile.getOriginalFilename()); System.out.println(file.getPath()+""); FileOutputStream fileOutputStream = new FileOutputStream(file); fileOutputStream.write(commonsMultipartFile.getBytes()); fileOutputStream.close(); } catch (Exception e) { // TODO Auto-generated catch block e.printStackTrace(); } } return "ok"; }} |
index.jsp頁面上傳立即顯示圖片
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<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%><html> <head> <title>My JSP 'index.jsp' starting page</title> <script type="text/javascript"> //判斷瀏覽器是否支持FileReader接口 if (typeof FileReader == 'undefined') { alert("<h1>當前瀏覽器不支持FileReader接口</h1>"); } //選擇圖片，馬上預覽 function xmTanUploadImg(obj) { var file = obj.files[0]; var reader = new FileReader(); reader.onload = function(e) { var img = document.getElementById("img1"); img.src = e.target.result; } reader.readAsDataURL(file); } </script> </head> <body> <form action="upload.upload" method="post" enctype="multipart/form-data"> file1::<input type="file" name="file1" accept=".jpg,.png" onchange="xmTanUploadImg(this)" /> <input type="submit" /> <img id="img1" /> </form> </body></html> |
總結
以上所述是小編給大家介紹的SpringMVC多個文件上傳及上傳后立即顯示圖片功能，希望對大家有所幫助，如果大家有任何疑問請給我留言，小編會及時回復大家的。在此也非常感謝大家對服務器之家網站的支持！
原文鏈接：http://blog.csdn.net/william_hof/article/details/78221405
