spring boot 文件上传

<form action="uplong" enctype="multipart/form-data" method="post">
	
	<input type="file" name="fileuplong">
	
	<input type="submit" value="上传">

</form>

Controller类中的方法参数必须于html中的上传控件name保持一致要么会报null。

@RestController
public class RestFileController {
	
	@RequestMapping("/uplong")
	public Map<String, Object> UplongFile(MultipartFile fileuplong) throws Exception{
		
		//获取文件名
		System.out.println(fileuplong.getOriginalFilename());
		//将文件上传的位置
		fileuplong.transferTo(new File("E:/"+fileuplong.getOriginalFilename()));
		
		Map<String, Object> map = new HashMap<String, Object>();
		
		map.put("map", "上传成功");
		
		return map;
		
	}

}

@SpringBootApplication
public class App {

	public static void main(String[] args) {
		
		SpringApplication.run(App.class, args);

	}

}