准備工作： 需要先搭建一個spirngmvc的maven項目
- 1、加入jar包
<dependency> <groupId>commons-fileupload</groupId> <artifactId>commons-fileupload</artifactId> <version>1.3</version> </dependency>- 2、在springmvc的配置文件中，加入如下配置：
<!--SpringMVC上傳文件時，需要配置MultipartResolver處理器--> <bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver"> <property name="defaultEncoding" value="UTF-8" /> <!-- 指定所上傳文件的總大小不能超過200KB。注意maxUploadSize屬性的限制不是針對單個文件，而是所有文件的容量之和 --> <property name="maxUploadSize" value="200000"/> <!-- 指定上傳文件的臨時路徑 --> <!-- <property name="uploadTempDir" value="uploadTempDirectory" /> --> </bean>- 3、創建Controller
package cn.van.controller; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestParam; import org.springframework.web.bind.annotation.ResponseBody; import org.springframework.web.multipart.MultipartFile; import java.io.File; import java.io.IOException; /** * Created by van on 2017-07-18. */ @Controller @RequestMapping("/upload") public class MultipartFileController { //單文件上傳 @RequestMapping("/toFileUpload") public String toUpload(){ return "fileUpload/fileUpload"; } @RequestMapping("fileUpload") @ResponseBody public String upload(MultipartFile multipartFile){ if(!multipartFile.isEmpty()){ //設置文件的保存路徑 String filePath = "D:\\MultipartFile\\" + multipartFile.getOriginalFilename(); //轉存文件 try { multipartFile.transferTo(new File(filePath)); } catch (IOException e) { e.printStackTrace(); } } return "success"; } //多文件上傳 @RequestMapping("/toFileUploadFiles") public String toUploadFiles(){ return "fileUpload/fileUploadFiles"; } @RequestMapping("fileUploadFiles") @ResponseBody //此處用@RequestParam（"xx"）來指定參數名，不加會報錯 public String uploadFiles(@RequestParam("multipartFile") MultipartFile[] multipartfiles) throws IOException { String savePath = "D:\\MultipartFile\\"; if(multipartfiles != null && multipartfiles.length != 0){ if(null != multipartfiles && multipartfiles.length > 0){ //遍歷並保存文件 for(MultipartFile file : multipartfiles){ file.transferTo(new File(savePath + file.getOriginalFilename())); } } } return "success"; } }- 4、寫兩個簡單的上傳頁面（單文件和多文件）
單文件：
<%@page language="java" contentType="text/html;charset=UTF-8" pageEncoding="UTF-8"%> <%@include file="/WEB-INF/jsp/common/common.jsp"%> <html> <title>test</title> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> <head> <style type="text/css"> .upload { margin-top: 100px; margin-left: 100px; text-align: center; } </style> </head> <body> <h1 style="text-align: center;margin-top: 20px">test</h1> <div> <form class="upload" action="${path}/upload/fileUpload" method="post" enctype="multipart/form-data"> <p> 選擇文件:<input type="file" name="multipartFile"/> </p> <p></p> <p style="margin-top: 20px;"> <input style="" type="submit" value="上傳並檢測"/> </p> </form> </div> </body> </html>多文件：
<%@page language="java" contentType="text/html;charset=UTF-8" pageEncoding="UTF-8"%> <%@include file="/WEB-INF/jsp/common/common.jsp"%> <html> <title>test</title> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> <head> <style type="text/css"> .upload { margin-top: 100px; margin-left: 100px; text-align: center; } </style> </head> <body> <h1 style="text-align: center;margin-top: 20px">test</h1> <div> <form class="upload" action="${path}/upload/fileUploadFiles" method="post" enctype="multipart/form-data"> <p> 選擇文件:<input type="file" name="multipartFile"/> <input type="file" name="multipartFile"/> <input type="file" name="multipartFile"/> </p> <p></p> <p style="margin-top: 20px;"> <input style="" type="submit" value="上傳並檢測"/> </p> </form> </div> </body> </html>5、訪問頁面，選擇本地文件，上傳成功。