SpringMVC實現文件上傳

1.首先我們在pom.xml中引入上傳文件所需要的依賴

		<!-- 上傳文件所需要的依賴 -->
		<dependency>
			<groupId>commons-fileupload</groupId>
			<artifactId>commons-fileupload</artifactId>
			<version>1.3.1</version>
		</dependency>

2.在springmvc.xml中配置上傳文件所需要的配置信息

	<!-- 多部分文件上傳 -->
	<bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
		<property name="maxUploadSize" value="104857600" />
		<property name="maxInMemorySize" value="4096" />
		<property name="defaultEncoding" value="UTF-8"/>
	</bean>

3.編寫文件上傳的請求發送視圖

<%@ page contentType="text/html; charset=utf-8"
    pageEncoding="utf-8"%>
<!DOCTYPE html >
<html>
<head>
<meta charset="utf-8">
<title>文件上傳</title>
</head>
<body>
	<form action="mvc/upload" method="post" enctype="multipart/form-data">
		<input type="file" name="myFile" />
		<input type="submit" value="上傳" />
	</form>
</body>
</html>

4.編寫請求處理類

package com.yc.controllers;

import java.io.File;
import java.io.IOException;

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;

@Controller
public class FileController {
	@RequestMapping("mvc/upload")
	public String fileUpload(@RequestParam MultipartFile myFile){
		//getOriginalFilename()得到上傳的文件名
		String path="G:/"+myFile.getOriginalFilename();
		File newFile=new File(path);
		//通過CommonsMultipartFile的方法直接寫文件
		try {
			myFile.transferTo(newFile);
		} catch (IllegalStateException | IOException e) {
			e.printStackTrace();
		}
		return "uploadSuccess";
	}
}

5.測試運行結果