在application.yml文件中引入对应的配置,一个是对应的节点,两个是密钥和账号,还有一个是对应文件的名称;
采用这样方式进行解耦,便于后期修改。
然后需要设置一个properties类,去读对应的配置信息
用到了ConfigurationProperties类,对应扫描的是alioss;
编写对应的工具类
@Data
@AllArgsConstructor
@Slf4j
public class AliOssUtil {private String endpoint;private String accessKeyId;private String accessKeySecret;private String bucketName;/*** 文件上传** @param bytes* @param objectName* @return*/public String upload(byte[] bytes, String objectName) {// 创建OSSClient实例。OSS ossClient = new OSSClientBuilder().build(endpoint, accessKeyId, accessKeySecret);try {// 创建PutObject请求。ossClient.putObject(bucketName, objectName, new ByteArrayInputStream(bytes));} catch (OSSException oe) {System.out.println("Caught an OSSException, which means your request made it to OSS, "+ "but was rejected with an error response for some reason.");System.out.println("Error Message:" + oe.getErrorMessage());System.out.println("Error Code:" + oe.getErrorCode());System.out.println("Request ID:" + oe.getRequestId());System.out.println("Host ID:" + oe.getHostId());} catch (ClientException ce) {System.out.println("Caught an ClientException, which means the client encountered "+ "a serious internal problem while trying to communicate with OSS, "+ "such as not being able to access the network.");System.out.println("Error Message:" + ce.getMessage());} finally {if (ossClient != null) {ossClient.shutdown();}}//文件访问路径规则 https://BucketName.Endpoint/ObjectNameStringBuilder stringBuilder = new StringBuilder("https://");stringBuilder.append(bucketName).append(".").append(endpoint).append("/").append(objectName);log.info("文件上传到:{}", stringBuilder.toString());return stringBuilder.toString();}
}
返回文件存储的地址
在controller中编写上传方法;
@RestController
@RequestMapping("/admin/common")
@Api(tags = "通用接口")
@Slf4j
public class CommonController {@Autowiredprivate AliOssUtil aliOssUtil;/*** 文件上传* @param file* @return*/@PostMapping("/upload")@ApiOperation("文件上传")public Result<String> upload(MultipartFile file){log.info("文件上传:{}",file);try {//原始文件名String originalFilename = file.getOriginalFilename();//截取原始文件名的后缀 dfdfdf.pngString extension = originalFilename.substring(originalFilename.lastIndexOf("."));//构造新文件名称String objectName = UUID.randomUUID().toString() + extension;//文件的请求路径String filePath = aliOssUtil.upload(file.getBytes(), objectName);return Result.success(filePath);} catch (IOException e) {log.error("文件上传失败:{}", e);}return Result.error(MessageConstant.UPLOAD_FAILED);}
}
采用的UUID.randomUUID().toString() ,这个是随机命名,可以防止上传文件名称出现重复。
还需要配置对应的Configuration类,初始化阿里云对象,把他交给bean进行管理
*/
@Configuration //配置类
@Slf4j
public class OssConfiguration {//配置类 用于初始化对象@Bean@ConditionalOnMissingBeanpublic AliOssUtil aliOssUtil(AliOssProperties aliOssProperties){log.info("开始创建阿里云文件上传工具类对象:{}",aliOssProperties);return new AliOssUtil(aliOssProperties.getEndpoint(),aliOssProperties.getAccessKeyId(),aliOssProperties.getAccessKeySecret(),aliOssProperties.getBucketName());}
}
这边是因为在Controller中使用了依赖注入,需要将对象交给bean进行管理,编写对应的Configuration类;