1.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>upload page</title>
</head>
<body>
<div class="upload">
<form action="upload" enctype="multipart/form-data" method="post">
<input type="file" name="file"/><br/>
<input type="submit" value="上传">
</form>
</div>
</body>
</html>2.viewController
//viewController
@Override
public void addViewControllers(ViewControllerRegistry registry) {
registry.addViewController("/index1").setViewName("/index1");
//跳转文件上传页面
registry.addViewController("/toupload").setViewName("/upload");
}
//文件上传最大限制
@Bean
public MultipartResolver multipartResolver() {
CommonsMultipartResolver multipartResolver = new CommonsMultipartResolver();
multipartResolver.setMaxUploadSize(200);
return multipartResolver;
}3.控制器
package com.boot.springmvc.web.ch3;
import java.io.File;
import java.io.IOException;
import org.apache.commons.io.FileUtils;
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.ResponseBody;
import org.springframework.web.multipart.MultipartFile;
@Controller
public class UploadController {
@RequestMapping(value = "/upload", method = RequestMethod.POST)
public @ResponseBody String upload(MultipartFile file) {// 1
try {
FileUtils.writeByteArrayToFile(new File("e:/upload/" + file.getOriginalFilename()), file.getBytes()); // 2
return "ok";
} catch (IOException e) {
e.printStackTrace();
return "wrong";
}
}
}
1.使用MultipartFile接收上传的文件
2.FileUtils.writeByteArrayToFile(new File("e:/upload/" + file.getOriginalFilename()), file.getBytes()); // 2将文件写入到指定磁盘。