OSS对象存储

OSS对象存储

• 前提：注册阿里云账号，开通OSS服务（免费），获取AccessKey和AccessKeySecret

1、导入依赖

• 这里joda-time的版本必须为2.x.x版本，否则和后面代码冲突

<dependency>
    <groupId>com.aliyun.oss</groupId>
    <artifactId>aliyun-sdk-oss</artifactId>
    <version>3.10.2</version>
</dependency>
<dependency>
    <groupId>joda-time</groupId>
    <artifactId>joda-time</artifactId>
    <version>2.10.5</version>
    <scope>compile</scope>
</dependency>

2、配置OSS基本信息

server.port=8004

spring.application.name=server_oss

#spring.profiles.active=dev

aliyun.oss.file.endpoint=oss-cn-hangzhou.aliyuncs.com
aliyun.oss.file.keyid=*******************
aliyun.oss.file.keysecret==*******************
aliyun.oss.file.bucketname=wagn-edu

3、创建类读取OSS基本信息

package com.wagn.oss.utils;

import org.springframework.beans.factory.InitializingBean;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Component;

@Component
public class ReadUtil 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 KEY_ID;

    public static String KEY_SECRET;

    public static String BUCKET_NAME;

    @Override
    public void afterPropertiesSet() throws Exception {
        END_POINT = endpoint;
        KEY_ID = keyid;
        KEY_SECRET = keysecret;
        BUCKET_NAME = bucketname;
    }
}

4、接口接收file流

public class OssController {
    @Autowired
    private OssService ossService;

    @PostMapping("upload")
    public String upload(MultipartFile file){
        String rs = ossService.upload(file);
        return rs;
    }
}

5、上传图片并返回图片地址

package com.wagn.oss.service.impl;

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

import java.io.InputStream;
import java.util.UUID;

@Service
public class OssServiceImpl implements OssService {
    @Override
    public String upload(MultipartFile file) {
        
        String endpoint = ReadUtil.END_POINT;
        String accessKeyId = ReadUtil.KEY_ID;
        String accessKeySecret = ReadUtil.KEY_SECRET;
        String buketName = ReadUtil.BUCKET_NAME;



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

            // 上传文件流。
            InputStream inputStream = file.getInputStream();
            String objName = file.getOriginalFilename();
            objName = UUID.randomUUID().toString().replaceAll("-","")+objName;
            objName = new DateTime().toString("yyyy/MM/dd/")+objName;
            ossClient.putObject(buketName, objName, inputStream);
            // 关闭OSSClient。
            ossClient.shutdown();

            String url;
            url = "https://"+buketName+"."+endpoint+"/"+objName;
            return url;
        }catch (Exception e){
            e.printStackTrace();
            return null;
        }
    }
}