Springboot集成阿里云OSS上传文件系统教程

<!-- 阿里云oss依赖 -->
 <dependency>
 <groupId>com.aliyun.oss</groupId>
 <artifactId>aliyun-sdk-oss</artifactId>
 </dependency>
 <!-- 日期工具栏依赖 -->
 <dependency>
 <groupId>joda-time</groupId>
 <artifactId>joda-time</artifactId>
 </dependency>

#服务端口
server.port=8002
#服务名
spring.application.name=service-oss
#环境设置：dev、test、prod
spring.profiles.active=dev

#阿里云 OSS
#不同的服务器，地址不同  需要根据自己的信息填写
aliyun.oss.file.endpoint=your endpoint
aliyun.oss.file.keyid=your accessKeyId
aliyun.oss.file.keysecret=your accessKeySecret
#bucket可以在控制台创建，也可以使用java代码创建
aliyun.oss.file.bucketname=guli-file

package com.sun.oss;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.annotation.ComponentScan;

@SpringBootApplication
@ComponentScan({"com.sun"})
public class OssApplication {
    public static void main(String[] args) {
        SpringApplication.run(OssApplication.class, args);
    }
}

# mysql数据库连接
spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
spring.datasource.url=jdbc:mysql://localhost:3306/musicdb?serverTimezone=GMT%2B8
spring.datasource.username=root
spring.datasource.password=123456

@SpringBootApplication(exclude = DataSourceAutoConfiguration.class)

//当项目已启动，spring接口，spring加载之后，执行接口一个方法
@Component
public class ConstantPropertiesUtils implements InitializingBean {

    //读取配置文件内容
    @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;

    //定义公开静态常量
    public static String END_POIND;
    public static String ACCESS_KEY_ID;
    public static String ACCESS_KEY_SECRET;
    public static String BUCKET_NAME;

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

@Api(description = "头像上传到oss")
@RestController
@RequestMapping("/eduoss/fileoss")
@CrossOrigin//解决跨域问题
public class OssController {

    @Autowired
    private OssService ossService;

    //上传头像的方法
    @ApiOperation("上传头像")
    @PostMapping
    public R uploadOssFile(MultipartFile file) {
        //获取上传文件  MultipartFile
        //返回上传到oss的路径
        String url = ossService.uploadFileAvatar(file);
        return R.ok().data("url",url);
    }
}

@Service
public class OssServiceImpl implements OssService {
    //上传头像
    @Override
    public String uploadFileAvatar(MultipartFile file) {
        //工具类获取值
        String endPoind = ConstantPropertiesUtils.END_POIND;
        String accessKeyId = ConstantPropertiesUtils.ACCESS_KEY_ID;
        String accessKeySecret = ConstantPropertiesUtils.ACCESS_KEY_SECRET;
        String bucketName = ConstantPropertiesUtils.BUCKET_NAME;
        try {
            //创建Oss实例
            OSS ossClient = new OSSClientBuilder().build(endPoind, accessKeyId, accessKeySecret);

            //获取上传文件输入流
            InputStream inputStream = file.getInputStream();
            //获取文件名称
            String filename = file.getOriginalFilename();

            //1.防止上传文件名重复，使用UUid
            String uuid = UUID.randomUUID().toString().replaceAll("-", "");
            //拼接fileName
            filename=uuid+filename;

            //2.把文件按照日期分类
            //获取当前日期,需要引入org.joda.time依赖
            String datePath = new DateTime().toString("yyyy/MM/dd");
            //拼接
            filename=datePath+"/"+filename;

            //调用oss方法实现上传
            //第一个参数 Bucket名称
            //第二个参数 上传到oss的文件路径和文件名
            //第三个参数 上传文件输入流
            ossClient.putObject(bucketName,filename,inputStream);

            //关闭OssClient
            ossClient.shutdown();

            //上传之后把文件路劲返回
            //需要把上传到oss路径手动拼接出来
            //https://edu-975.oss-cn-beijing.aliyuncs.com/07aef13af7ea82703f3eb320c3f577ec.jpg
            String url="https://"+bucketName+"."+endPoind+"/"+filename;
            return url;


        }catch (Exception e){
            e.printStackTrace();
            return null;
        }

    }
}

# 单个文件大小
spring.servlet.multipart.max-request-size=10MB
# 单次最大文件
spring.servlet.multipart.max-file-size=3MB