将本地文件发布为http请求

@PostConstruct
public void init()
{

　　//发布端口 8000
    InetSocketAddress address = new InetSocketAddress(8000);
　　 try {　　　　
　　　　　HttpServer httpServer = HttpServer.create(address, 1);

         httpServer.createContext("/", (context)->{
　　　　　　//文件存储路径-----D:/important/images/
            String filePath = "D:/important/images/"+context.getRequestURI().toString();

            byte[] bytes = Files.readAllBytes(Paths.get(filePath));
            context.sendResponseHeaders(200,bytes.length);
            context.getResponseHeaders().add("content-type","image/*");
            context.getResponseBody().write(bytes);
            context.close();
        });
        httpServer.start();
    } catch (IOException e) {

    }
}

private static final String BASEPATH = "http://localhost:8000/";
private static final String REALBASEPATH = "D:/important/images/";

public String saveGoods(AddGoodsInfoRequest request) {

    GoodsInfo target = new GoodsInfo();
    BeanUtils.copyProperties(request, target);
    target.setGoodsType(String.join(",", request.getGoodsType()));

    Set<String> fileNameSet = Sets.newHashSet();
    long l = System.currentTimeMillis();
    if (!CollectionUtils.isEmpty(request.getFiles())) {
        for (MultipartFile file : request.getFiles()) {
            String originName = l + "_" + file.getOriginalFilename();
            fileNameSet.add(BASEPATH + originName);
            writeImgToUpload(file, REALBASEPATH + originName);
        }
    }
    target.setFileName(String.join(",", fileNameSet));
    target.setMainImageUrl(BASEPATH + l + "_" + target.getMainImageUrl());
    Date createTime = new Date();
    target.setCreateTime(createTime);
    target.setUpdateTime(createTime);
    goodsInfoMapper.insert(target);
    return null;
}

/**
* 文件上传
*/

private String writeImgToUpload(MultipartFile img, String filePath) {
    File toFile = new File(filePath);
    if (!toFile.getParentFile().exists()) {
        toFile.mkdirs();
    }
    try {
        img.transferTo(toFile);
        return filePath;
    } catch (IOException e) {
        e.printStackTrace();
    }
    return null;
}