Java使用阿里云OSS实现文件的上传

开通阿里云oss服务

选择OSS系统开通服务充值创建bucket 查看sdk的使用项目演示

pomproperties主启动类初始化工具类service层controller层

阿里云官网：https://www.aliyun.com/

充值一元就够个人使用很长时间了

选择：添加名称、标准存储、公共读、不开通
查看生成的id和秘钥

查看sdk的使用

帮助文档：https://help.aliyun.com/document_detail/32006.html

    
        
        
            com.aliyun.oss
            aliyun-sdk-oss
        
        
        
            joda-time
            joda-time
        
    

#端口号
server.port=8082
#服务名称
spring.application.name=service_oss
#开发环境
spring.profiles.active=dev
#oss的网址、id、秘钥
aliyun.oss.file.endpoint=你的公开的endpoint
aliyun.oss.file.keyid=你的keiId
aliyun.oss.file.keysecret=keyId对应的secret
#buket名称
aliyun.oss.file.bucketname=创建时的bucketname
#nacos地址
spring.cloud.nacos.discovery.server-addr=localhost:8848
#项目名称
project.name=cinema-online

// 不需要加载项目的数据源
@SpringBootApplication(exclude = DataSourceAutoConfiguration.class)
@EnableDiscoveryClient
@EnableSwagger2
public class OssApplication {
    public static void main(String[] args) {
        SpringApplication.run(OssApplication.class, args);
    }
}

// 启动时自动读取
@Component
public class ConstantPropertiesUtils implements InitializingBean {
    @Value("${aliyun.oss.file.endpoint}")
    private String endpoint;
    @Value("${aliyun.oss.file.keyid}")
    private String keyId;
    @Value("${aliyun.oss.file.keysecret}")
    private String keySecret;
    @Value("${aliyun.oss.file.bucketname}")
    private String bucketName;

    public static String END_POINT;
    public static String ACCESS_KEY_ID;
    public static String ACCESS_KEY_SECRET;
    public static String BUCKET_NAME;


    @Override
    public void afterPropertiesSet() throws Exception {
        END_POINT = endpoint;
        ACCESS_KEY_ID = keyId;
        ACCESS_KEY_SECRET = keySecret;
        BUCKET_NAME = bucketName;
    }
}

@Service
public class OssServiceImpl implements OssService {

    @Value("${project.name}")
    private String projectName;

    
    @Override
    public ResponseResult uploadFileAvatar(MultipartFile file) {
        // 通过工具类获取配置数据
        String endPoint = ConstantPropertiesUtils.END_POINT;
        String accessKeyId = ConstantPropertiesUtils.ACCESS_KEY_ID;
        String accessKeySecret = ConstantPropertiesUtils.ACCESS_KEY_SECRET;
        String bucketName = ConstantPropertiesUtils.BUCKET_NAME;

        // 完成上传
        try {
            // 获取上传的输入流
            InputStream inputStream = file.getInputStream();
            // 防止恶意程序伪装成图片
            BufferedImage image = ImageIO.read(inputStream);
            if (image == null || image.getWidth() == 0 || image.getHeight() == 0) {
                return ResponseResult.error().message("请上传符合规范的图片");
            }

            // 获取文件名称
            String filename = file.getOriginalFilename();

            // 为文件设定唯一名称
           
            filename = UUID.randomUUID().toString().replaceAll("-", "") + filename;
            // 按照年月日创建上传的目录存放图片
            String datePath = new DateTime().toString("yyyy/MM/dd");
            filename = projectName + "/" + datePath + "/" + filename;

            
            OSS ossClient = new OSSClientBuilder().build(endPoint, accessKeyId, accessKeySecret);
            ossClient.putObject(bucketName, filename, inputStream);
            ossClient.shutdown();
            String url = "https://" + bucketName + "." + endPoint + "/" + filename;
            return ResponseResult.success().data("url", url);
        } catch (Exception e) {
            e.printStackTrace();
        }
        return null;
    }
}

@RestController
@RequestMapping("/oss/")
public class OssController {
    @Autowired
    private OssService ossService;

    @ApiOperation("图片上传")
    @PostMapping("upload")
    public ResponseResult uploadOssFile(MultipartFile file) {
         return ossService.uploadFileAvatar(file);
    }
}