026-从零搭建微服务-文件服务（二）

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源码地址（后端）：https://gitee.com/csps/mingyue

源码地址（前端）：https://gitee.com/csps/mingyue-ui

文档地址：https://gitee.com/csps/mingyue/wikis

OSS 基础表设计

1. OSS对象存储表

DROP TABLE IF EXISTS sys_oss;
CREATE TABLE sys_oss (oss_id           BIGINT(20)        NOT NULL                   COMMENT 'OSS对象ID',file_name        VARCHAR(255)      NOT NULL DEFAULT ''        COMMENT '文件名',original_name    VARCHAR(255)      NOT NULL DEFAULT ''        COMMENT '原名',file_suffix      VARCHAR(10)       NOT NULL DEFAULT ''        COMMENT '文件后缀名',file_url         VARCHAR(500)      NOT NULL                   COMMENT '文件URL',create_time      DATETIME          DEFAULT NULL               COMMENT '创建时间',create_by        VARCHAR(64)       DEFAULT ''                 COMMENT '上传人',update_time      DATETIME          DEFAULT NULl               COMMENT '更新时间',update_by        VARCHAR(64)       DEFAULT ''                 COMMENT '更新人',service          VARCHAR(20)       NOT NULL DEFAULT 'minio'   COMMENT '服务商',primary key (oss_id)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_bin ROW_FORMAT=DYNAMIC COMMENT='OSS对象存储表';

2. OSS对象存储动态配置表

DROP TABLE IF EXISTS sys_oss_config;
CREATE TABLE sys_oss_config (oss_config_id     BIGINT(20)         NOT NULL                 COMMENT 'OSS动态配置ID',config_key        VARCHAR(20)        NOT NULL DEFAULT ''      COMMENT '配置key',access_key        VARCHAR(255)       DEFAULT ''               COMMENT 'accessKey',secret_key        VARCHAR(255)       DEFAULT ''               COMMENT '秘钥',bucket_name       VARCHAR(255)       DEFAULT ''               COMMENT '桶名称',prefix            VARCHAR(255)       DEFAULT ''               COMMENT '前缀',endpoint          VARCHAR(255)       DEFAULT ''               COMMENT '访问站点',domain            VARCHAR(255)       DEFAULT ''               COMMENT '自定义域名',is_https          CHAR(1)            DEFAULT 'N'              COMMENT '是否https（Y是 N否）',region            VARCHAR(255)       DEFAULT ''               COMMENT '域',access_policy     CHAR(1)            NOT NULL DEFAULT '1'     COMMENT '桶权限类型(0-private 1-public 2-custom)',status            CHAR(1)            DEFAULT '1'              COMMENT '是否默认（0是 1否）',extend            VARCHAR(255)       DEFAULT ''               COMMENT '扩展字段',create_by         VARCHAR(64)        DEFAULT ''               COMMENT '创建者',create_time       DATETIME           DEFAULT NULL             COMMENT '创建时间',update_by         VARCHAR(64)        DEFAULT ''               COMMENT '更新者',update_time       DATETIME           DEFAULT NULL             COMMENT '更新时间',PRIMARY KEY (oss_config_id)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_bin ROW_FORMAT=DYNAMIC COMMENT='OSS对象存储动态配置表';INSERT INTO `sys_oss_config` VALUES (1, 'minio', 'd6zVm5AP07uGCqSmsTxe', 'Vsm6qQDHgGchukEpyEoeX3dTe7fic60nTi8D9a0I', 'mingyue', '', 'mingyue-minio:5000', '', 'N', '', '1', '0', '', 'admin', '2023-09-11 17:50:40', 'admin', '2023-09-11 17:50:40');
COMMIT;

OSS 配置加载

初始化OSS配置

@Override
public void init() {List<SysOssConfig> list = this.list();// 加载 OSS 初始化配置for (SysOssConfig config : list) {String configKey = config.getConfigKey();if ("0".equals(config.getStatus())) {RedisUtils.setCacheObject(OssConstant.DEFAULT_CONFIG_KEY, configKey);}RedisUtils.setCacheMapValue(OssConstant.SYS_OSS_CONFIG, config.getConfigKey(), JSONUtil.toJsonStr(config));}
}

OssApplicationRunner

@Slf4j
@Component
@RequiredArgsConstructor
public class OssApplicationRunner implements ApplicationRunner {private final SysOssConfigService sysOssConfigService;@Overridepublic void run(ApplicationArguments args) {sysOssConfigService.init();log.info("初始化 OSS 配置成功");}}

改进 OssFactory

@Slf4j
public class OssFactory {private static final Map<String, OssClient> CLIENT_CACHE = new ConcurrentHashMap<>();/*** 获取默认实例*/public static OssClient instance() {// 获取redis 默认类型String configKey = RedisUtils.getCacheObject(OssConstant.DEFAULT_CONFIG_KEY);if (StrUtil.isEmpty(configKey)) {throw new OssException("文件存储服务类型无法找到!");}return instance(configKey);}/*** 根据类型获取实例*/public static OssClient instance(String configKey) {String json = RedisUtils.getCacheMapValue(OssConstant.SYS_OSS_CONFIG, configKey);if (json == null) {throw new OssException("系统异常, '" + configKey + "'配置信息不存在!");}OssProperties properties = JSONUtil.toBean(json, OssProperties.class);OssClient client = CLIENT_CACHE.get(configKey);if (client == null) {CLIENT_CACHE.put(configKey, new OssClient(configKey, properties));log.info("创建OSS实例 key => {}", configKey);return CLIENT_CACHE.get(configKey);}// 配置不相同则重新构建if (!client.checkPropertiesSame(properties)) {CLIENT_CACHE.put(configKey, new OssClient(configKey, properties));log.info("重载OSS实例 key => {}", configKey);return CLIENT_CACHE.get(configKey);}return client;}}

移除 Nacos OSS 配置

因为从数据库加载配置，所以不在需要 Nacos 配置了

oss:configKey: minioendpoint: mingyue-minio:5000domain:prefix:accessKey: d6zVm5AP07uGCqSmsTxesecretKey: Vsm6qQDHgGchukEpyEoeX3dTe7fic60nTi8D9a0IbucketName: mingyueregion: isHttps: NaccessPolicy: 1

上传测试

{"code": 200,"msg": "操作成功","data": {"ossId": "1701490497677180930","fileName": "2023-09-12/d1b5389a465f4bf7985844916d785c06.png","originalName": "head_1.png","fileSuffix": ".png","fileUrl": "http://mingyue-minio:5000/mingyue/2023-09-12/d1b5389a465f4bf7985844916d785c06.png","createTime": "2023-09-12 14:58:41","createBy": "mingyue","service": "minio"}
}

OSS 上传信息保存

/*** 构建上传文件返回信息* @param originalFilename 原始文件名* @param suffix 文件后缀* @param configKey 配置key* @param uploadResult OSS服务返回结果* @return*/
private SysOssVo buildResult(String originalFilename, String suffix, String configKey, UploadResult uploadResult) {SysOss oss = new SysOss();oss.setFileUrl(uploadResult.getFileUrl());oss.setFileSuffix(suffix);oss.setFileName(uploadResult.getFileName());oss.setOriginalName(originalFilename);oss.setService(configKey);this.save(oss);SysOssVo sysOssVo = BeanUtil.toBean(oss, SysOssVo.class);return this.matchingUrl(sysOssVo);
}

删除文件

逻辑实现

删除数据库记录的同时需要删除OSS服务对应的文件

@Override
public Boolean deleteByOssIds(List<Long> ossIds) {List<SysOss> list = this.listByIds(ossIds);if (CollUtil.isEmpty(list)) {return Boolean.FALSE;}for (SysOss sysOss : list) {OssClient storage = OssFactory.instance(sysOss.getService());storage.delete(sysOss.getFileUrl());}return this.removeBatchByIds(ossIds);
}

删除接口

@DeleteMapping("/{ossIds}")
@Operation(summary = "删除OSS对象存储",parameters = { @Parameter(name = "ossIds", description = "oss对象Ids", required = true) })
public R<Boolean> remove(@NotEmpty(message = "主键不能为空") @PathVariable List<Long> ossIds) {return R.ok(sysOssService.deleteByOssIds(ossIds));
}

删除测试

删除前打开文件查看：http://mingyue-minio:5000/mingyue/2023-09-12/d1b5389a465f4bf7985844916d785c06.png

curl -X 'DELETE' \'http://mingyue-gateway:9100/oss/sysOss/1701490497677180930' \-H 'accept: */*' \-H 'Authorization: 6H1mlA91zFRa5yEpIl2b2mnCjbG5B44f'

删除后再打开

<Error><Code>NoSuchKey</Code><Message>The specified key does not exist.</Message><Key>2023-09-12/d1b5389a465f4bf7985844916d785c06.png</Key><BucketName>mingyue</BucketName><Resource>/mingyue/2023-09-12/d1b5389a465f4bf7985844916d785c06.png</Resource><RequestId>17841B7B6B41C214</RequestId><HostId>dd9025bab4ad464b049177c95eb6ebf374d3b3fd1af9251148b658df7ac2e3e8</HostId>
</Error>

下载文件

逻辑实现

@Override
public void download(Long ossId, HttpServletResponse response) throws IOException {SysOss sysOss = this.getById(ossId);if (ObjectUtil.isNull(sysOss)) {throw new ServiceException("文件数据不存在!");}FileUtils.setAttachmentResponseHeader(response, sysOss.getOriginalName());response.setContentType(MediaType.APPLICATION_OCTET_STREAM_VALUE + "; charset=UTF-8");OssClient storage = OssFactory.instance(sysOss.getService());try (InputStream inputStream = storage.getObjectContent(sysOss.getFileUrl())) {int available = inputStream.available();IoUtil.copy(inputStream, response.getOutputStream(), available);response.setContentLength(available);}catch (Exception e) {throw new ServiceException(e.getMessage());}
}

下载接口

@GetMapping("/download/{ossId}")
@Operation(summary = "下载OSS对象存储",parameters = { @Parameter(in = ParameterIn.PATH, name = "ossIds", description = "oss对象Ids", required = true) })
public void download(@PathVariable Long ossId, HttpServletResponse response) throws IOException {sysOssService.download(ossId, response);
}

下载测试

curl -X 'GET' \'http://mingyue-gateway:9100/oss/sysOss/download/1701492631160229889' \-H 'accept: */*'

小结

文件服务基础已经完成啦，接下来可以自己尝试集成其他厂商的 OSS 服务。

文件服务更新暂告一段落，接下来弄一弄搜索服务，打算用 ES（Elasticsearch）作为搜索服务基础工具，期待一下吧～～