jar介绍地址：tobato/FastDFS_client

 <dependency>
  <groupId>com.github.tobato</groupId>
     <artifactId>fastdfs-client</artifactId>
     <version>1.26.7</version>
 </dependency>

引入配置类

纯java配置：
自己在项目里新建一个java类

@Configuration
@Import(FdfsClientConfig.class)
// 解决jmx重复注册bean的问题
@EnableMBeanExport(registration = RegistrationPolicy.IGNORE_EXISTING)
public class FastClientImporter {
}

3.5.3.编写FastDFS属性

这里是在application.yml文件里的配置

fdfs:
  so-timeout: 2500
  connect-timeout: 601
  thumb-image: # 缩略图
    width: 60
    height: 60
  tracker-list: # tracker地址
    - 192.168.56.101:22122

3.5.4.测试

自己新建一个测试类

@RunWith(SpringRunner.class)
//LyUploadService类就是包含@SpringBootApplication的启动类
@SpringBootTest(classes = LyUploadService.class)
public class FdfsTest {

    @Autowired
    private FastFileStorageClient storageClient;

    @Autowired
    private ThumbImageConfig thumbImageConfig;

    @Test
    public void testUpload() throws FileNotFoundException {
    //上传的文件地址，可以通过流方式获取
        File file = new File("D:\\test\\baby.png");
        // 上传并且生成缩略图
        StorePath storePath = this.storageClient.uploadFile(
                new FileInputStream(file), file.length(), "png", null);
        // 带分组的路径
        System.out.println(storePath.getFullPath());
        // 不带分组的路径
        System.out.println(storePath.getPath());
    }

    @Test
    public void testUploadAndCreateThumb() throws FileNotFoundException {
    //上传的文件地址，可以通过流方式获取
        File file = new File("D:\\test\\baby.png");
        // 上传并且生成缩略图
        StorePath storePath = this.storageClient.uploadImageAndCrtThumbImage(
                new FileInputStream(file), file.length(), "png", null);
        // 带分组的路径
        System.out.println(storePath.getFullPath());
        // 不带分组的路径
        System.out.println(storePath.getPath());
        // 获取缩略图路径
        String path = thumbImageConfig.getThumbImagePath(storePath.getPath());
        System.out.println(path);
    }
}

结果：
FastDFS上传成功后返回的内容

group1/M00/00/00/wKg4ZVro5eCAZEMVABfYcN8vzII630.png
M00/00/00/wKg4ZVro5eCAZEMVABfYcN8vzII630.png
M00/00/00/wKg4ZVro5eCAZEMVABfYcN8vzII630_60x60.png