博客

1.导包

<!--fastdfs-->
<dependency>
    <groupId>com.github.tobato</groupId>
    <artifactId>fastdfs-client</artifactId>
    <version>1.26.5</version>
</dependency>

2.配置

#socket连接超时时长
fdfs.soTimeout=1500
#连接tracker服务器超时时长
fdfs.connectTimeout=600
fdfs.trackerList=111.111.111.111:22

fileServerUrl=http://111.111.111.111:8080/

3.启动类

@SpringBootApplication
public class FastDFSApplication {

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

4.工具类

@Component
public class FastDFSClientUtil {

    @Autowired
    private FastFileStorageClient storageClient;

    /**
     * 上传
     * @param file
     * @return
     * @throws IOException
     */
    public String uploadFile(MultipartFile file) throws IOException {
        StorePath storePath = storageClient.uploadFile((InputStream) file.getInputStream(), file.getSize(), FilenameUtils.getExtension(file.getOriginalFilename()), null);
        return storePath.getFullPath();
    }

    /**
     * 删除
     * @param filePath
     */
    public void delFile(String filePath) {
        storageClient.deleteFile(filePath);

    }

    /**
     * 下载
     * @param groupName
     * @param path
     * @return
     */
    public byte[] download(String groupName, String path) throws IOException {
        InputStream ins = storageClient.downloadFile(groupName, path, new DownloadCallback<InputStream>() {
            @Override
            public InputStream recv(InputStream ins) throws IOException {
                // 将此ins返回给上面的ins
                return ins;
            }
        });

        ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
        byte[] buff = new byte[100];
        int rc = 0;
        while ((rc = ins.read(buff, 0, 100)) > 0) {
            byteArrayOutputStream.write(buff, 0, rc);
        }
        return byteArrayOutputStream.toByteArray();
    }
}

5.使用

@Value("${fileServerUrl}")
String url;

@PostMapping("/up")
public String file_up(MultipartFile file) throws IOException {
    String s = fastDFSClientUtil.uploadFile(file);
    return url+s;
}