准备工作： 需要先搭建一个spirngmvc的maven项目
- 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上传文件时，需要配置MultipartResolver处理器-->
<bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
<property name="defaultEncoding" value="UTF-8" />
<!-- 指定所上传文件的总大小不能超过200KB。注意maxUploadSize属性的限制不是针对单个文件，而是所有文件的容量之和 -->
<property name="maxUploadSize" value="200000"/>
<!-- 指定上传文件的临时路径 -->
<!-- <property name="uploadTempDir" value="uploadTempDirectory" /> -->
</bean>- 3、创建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 {
//单文件上传
@RequestMapping("/toFileUpload")
public String toUpload(){
return "fileUpload/fileUpload";
}
@RequestMapping("fileUpload")
@ResponseBody
public String upload(MultipartFile multipartFile){
if(!multipartFile.isEmpty()){
//设置文件的保存路径
String filePath = "D:\\MultipartFile\\" + multipartFile.getOriginalFilename();
//转存文件
try {
multipartFile.transferTo(new File(filePath));
} catch (IOException e) {
e.printStackTrace();
}
}
return "success";
}
//多文件上传
@RequestMapping("/toFileUploadFiles")
public String toUploadFiles(){
return "fileUpload/fileUploadFiles";
}
@RequestMapping("fileUploadFiles")
@ResponseBody
//此处用@RequestParam（"xx"）来指定参数名，不加会报错
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){
//遍历并保存文件
for(MultipartFile file : multipartfiles){
file.transferTo(new File(savePath + file.getOriginalFilename()));
}
}
}
return "success";
}
}- 4、写两个简单的上传页面（单文件和多文件）
单文件：
<%@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="${path}/upload/fileUpload" method="post" enctype="multipart/form-data">
<p>
选择文件:<input type="file" name="multipartFile"/>
</p>
<p></p>
<p style="margin-top: 20px;">
<input style="" type="submit" value="上传并检测"/>
</p>
</form>
</div>
</body>
</html>多文件：
<%@page language="java" contentType="text/html;charset=UTF-8" pageEncoding="UTF-8"%>
<%@include file="/WEB-INF/jsp/common/common.jsp"%>
<html>
<title>test</title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<head>
<style type="text/css">
.upload {
margin-top: 100px;
margin-left: 100px;
text-align: center;
}
</style>
</head>
<body>
<h1 style="text-align: center;margin-top: 20px">test</h1>
<div>
<form class="upload" action="${path}/upload/fileUploadFiles" method="post" enctype="multipart/form-data">
<p>
选择文件:<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="上传并检测"/>
</p>
</form>
</div>
</body>
</html>5、访问页面，选择本地文件，上传成功。