100字范文 > springMVC实现 MultipartFile 多文件上传

springMVC实现 MultipartFile 多文件上传

时间：2023-08-21 22:44:08

1、Maven引入所需的 jar 包（或自行下载）

<dependency><groupId>commons-io</groupId><artifactId>commons-io</artifactId><version>2.4</version></dependency><dependency><groupId>commons-fileupload</groupId><artifactId>commons-fileupload</artifactId><version>1.3.1</version></dependency>

2、配置Sping配置文件

<bean id="multipartResolver" class="org.springframework.monsMultipartResolver"> <property name="defaultEncoding" value="utf-8"></property> <property name="maxUploadSize" value="10485760000"></property> <property name="maxInMemorySize" value="40960"></property> </bean>

3、jsp页面form表单,enctype="multipart/form-data"

<html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><title>Insert title here</title></head><body><h2>上传多个文件实例</h2> <form action="/upload/filesUpload" method="post" enctype="multipart/form-data"> <p>选择文件:<input type="file" name="files"></p><p>选择文件:<input type="file" name="files"></p><p><input type="submit" value="提交"></p></form> </body></html>

4、controller类

package com.hwua.controller;import mons.fileupload.disk.DiskFileItemFactory;import mons.fileupload.servlet.ServletFileUpload;import org.springframework.stereotype.Controller;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.RequestParam;import org.springframework.web.multipart.MultipartFile;import org.springframework.web.servlet.ModelAndView;import javax.servlet.http.HttpServletRequest;import java.io.File;import java.io.IOException;import java.util.UUID;@RequestMapping("/user")@Controllerpublic class FileController {

@RequestMapping("/upload")public ModelAndView fileUpload(HttpServletRequest request,@RequestParam MultipartFile[] upload) throws IOException {ModelAndView mv = new ModelAndView();String path=request.getServletContext().getRealPath("/");File file =new File(path);if (!file.exists()){file.mkdirs();}

if (upload!=null&&upload.length>0){for (int i=0;i<upload.length;i++){String filename = upload[i].getOriginalFilename();String uuid = UUID.randomUUID().toString().toUpperCase();filename = uuid+"_"+filename;upload[i].transferTo(new File(file,filename));mv.addObject("info","上传成功!");mv.setViewName("success");}}return mv;}}

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