OSS简单上传图片

package com.atguigu.oss.service.impl;

import com.aliyun.oss.OSS;
import com.aliyun.oss.OSSClientBuilder;
import com.atguigu.oss.service.OssService;
import com.atguigu.oss.utils.ConstantPropertiesUtils;
import org.joda.time.DateTime;
import org.springframework.stereotype.Service;
import org.springframework.web.multipart.MultipartFile;

import java.io.InputStream;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.UUID;

@Service
public class OssServiceImpl implements OssService {

    //上传头像到oss
    @Override
    public String uploadFileAvatar(MultipartFile file) {
        // 工具类获取常量值也可以配置到配置文件@Value(${xxx})获取
        String endpoint = 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(endpoint, 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();

            String uuid = UUID.randomUUID().toString().replaceAll("-", "");
            fileName = uuid + fileName;
            String datePath = new DateTime().toString("yyyy/MM/dd");
            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文件路径和文件名称
             * 第三个参数  上传文件输入流
             */
            ossClient.putObject(bucketName, fileName, inputStream);

            // 关闭OSSClient。
            ossClient.shutdown();

            //需要把上传到阿里云oss路径手动拼接出来
            return  "https://" + bucketName + "." + endpoint + "/" + fileName;
        } catch (Exception e) {
            e.printStackTrace();
            return null;
        }
    }
}