SpringBoot整合阿里云OSS对象存储服务实现文件上传

<dependency>
    <groupId>com.aliyun.oss</groupId>
    <artifactId>aliyun-sdk-oss</artifactId>
    <version>3.10.2</version>
</dependency>

# 定义的端口号
server:
  port: 8080

aliyun:
  oss:
    #yourEndpoint填写Bucket所在地域对应的Endpoint，可在创建好的Bucket概况页查看。
    endpoint: oss-cn-chengdu.aliyuncs.com		# 以成都为例，Endpoint填写为https://oss-cn-chengdu.aliyuncs.com
    #阿里云账号AccessKey拥有所有API的访问权限，风险很高。强烈建议您创建并使用RAM用户进行API访问或日常运维，请登录RAM控制台创建RAM用户
    accessKeyId: **********				# 阿里云账号AccessKey里所对应的AccessKey ID
    accessKeySecret: **********				# 阿里云账号AccessKey里所对应的AccessKey Secret
    bucketName: **********				# OSS对象存储空间名

import org.springframework.stereotype.Service;
import org.springframework.web.multipart.MultipartFile;
import java.util.Map;

@Service
public interface AliyunOssService {
    Map<String, Object> upload(MultipartFile file, String fileName);
}

import com.system.demo.service.AliyunOssService;
import com.system.demo.util.FileUploadUtil;
import org.springframework.stereotype.Service;
import org.springframework.web.multipart.MultipartFile;
import javax.annotation.Resource;
import java.util.HashMap;
import java.util.Map;

@Service("aliyunOssService")
public class AliyunOssServiceImpl implements AliyunOssService {

    @Resource
    private FileUploadUtil fileUploadUtil;

    @Override
    public Map<String, Object> upload(MultipartFile file, String fileName){
        //定义一个目录（这里的目录可根据自己实际情况自己拼接定义）
        String path = "a";   //我这里就随便定义一个a文件夹
        //拼接，这里将路径和文件名拼接在了一起
        fileName = path + "/" +fileName;
        Map<String, Object> map =new HashMap<>();
        map.put("code", 200);
        map.put("msg", "查询成功");
        map.put("data", this.fileUploadUtil.upload(file, fileName));
        return map;
    }

}

import com.aliyun.oss.OSS;
import com.aliyun.oss.OSSClientBuilder;
import com.aliyun.oss.model.ObjectMetadata;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Component;
import org.springframework.web.multipart.MultipartFile;
import java.io.IOException;
import java.io.InputStream;

@Component
public class FileUploadUtil {

    @Value("${aliyun.oss.endpoint}")
    private String endpoint;

    @Value("${aliyun.oss.accessKeyId}")
    private String accessKeyId;

    @Value("${aliyun.oss.accessKeySecret}")
    private String accessKeySecret;

    @Value("${aliyun.oss.bucketName}")
    private String bucketName;

    public String upload(MultipartFile file, String fileName){
            // 写入文件
            try {
                //获取上传的输入流
                InputStream inputStream = file.getInputStream();

                //设置访问地址是默认是预览图片
                ObjectMetadata meta = new ObjectMetadata();
                meta.setContentType("image/jpg");

                // 创建OSSClient实例
                OSS ossClient = new OSSClientBuilder().build(endpoint, accessKeyId, accessKeySecret);

                /*
                调用oss上传到阿里云对象存储oss----Bucket存储空间
                第一个参数 bucket名称
                第二个参数 文件名称
                第三个参数 输入流
                第四个参数 文件类型
                 */
                ossClient.putObject(bucketName, fileName, inputStream, meta);

                // 删除文件。如需删除文件夹，请将ObjectName设置为对应的文件夹名称。如果文件夹非空，则需要将文件夹下的所有object删除后才能删除该文件夹。
                //ossClient.deleteObject(bucketName, "a/");

                // 关闭OSSClient。
                ossClient.shutdown();

                //上传成功后获取文件路径
                String url = "https://" + bucketName + "." + endpoint + "/"+ fileName;
                return url;
            } catch (IOException e) {
                e.printStackTrace();
            }
        return null;
    }
}

import com.system.demo.service.impl.AliyunOssServiceImpl;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.multipart.MultipartFile;
import javax.annotation.Resource;
import java.util.Map;

@RestController
@RequestMapping("oss")
public class FileUpload {

    @Resource
    private AliyunOssServiceImpl aliyunOssServiceImpl;

    @RequestMapping(value = "fileoss", method = RequestMethod.POST)
    public Map<String, Object> uploadOssFile(MultipartFile file, String fileName){
        return this.aliyunOssServiceImpl.upload(file, fileName);

    }
}