springboot RestController上传和下载示例

上传代码

package com.asia.controller;

import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.InputStream;

import org.apache.commons.io.IOUtils;
import org.springframework.http.MediaType;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.multipart.MultipartFile;

@RestController
@RequestMapping("/test")
public class TestController {
	// 上传
	@PostMapping(value = "/{id}/photos", consumes = MediaType.MULTIPART_FORM_DATA_VALUE)
	public void addPhoto(@PathVariable int id, @RequestParam("photo") MultipartFile imgFile) throws Exception {
		FileOutputStream fos = new FileOutputStream("/003ENV/" + imgFile.getOriginalFilename());
		IOUtils.copy(imgFile.getInputStream(), fos);
		fos.close();
	}
	
	// 下载
	public byte[] getIcon(@PathVariable int id)throws Exception {
		InputStream is=new FileInputStream("icon.jpg");
		return IOUtils.toByteArray(is);
	}
}