1.获取到Java SDK
- 到阿里云对象存储的SDK下载，选择Java SDK
- 查看SDK文档，选择简单上传
- 选择上传文件流，获取到源码
更改源码步骤详见 4.测试 单元
2.在配置类中填写参数
# 阿里云OSS对象存储
oss:
# 配置地域节点Endpoint
endpoint: https://oss-cn-shanghai.aliyuncs.com
accessKeyId: LTAI5tMp**************
accessKeySecret: TWrV2y************
bucketName: ************
- 地域节点endpoint获取方式：
点击Bucket实例概览
- 访问密钥ID accessKeyId和访问密钥accessKeySecret
在头像的位置，点击AccessKey管理，生成对应的accessKeyId和accessKeySecret
点击创建AccessKey
- bucketName即创建的Bucket名
3.Oss配置类
此配置类是为了读取application.yaml配置文件当中的OSS参数
采用@Value的方式读取配置文件当中的OSS参数
@Component
public class OssUtils implements InitializingBean {
//读取配置文件中的内容
@Value("${oss.endpoint}") //属性注解，能将括号中的值注入到属性中去
private String endpoint;
@Value("${oss.accessKeyId}")
private String accessKeyId;
@Value("${oss.accessKeySecret}")
private String accessKeySecret;
@Value("${oss.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;
public void afterPropertiesSet() throws Exception {
END_POINT = endpoint;
ACCESS_KEY_ID = accessKeyId;
ACCESS_KEY_SECRET = accessKeySecret;
BUCKET_NAME = bucketName;
}
}
4.代码具体实现
- 加入阿里云OSS对象存储依赖
<!--阿里云OSS-->
<dependency>
<groupId>com.aliyun.oss</groupId>
<artifactId>aliyun-sdk-oss</artifactId>
<version>3.10.2</version>
</dependency>
- Controller层
@RestController
public class UploadController {
@Resource
private UploadService uploadService;
@PostMapping("/upload")
public ResponseResult uploadImg(MultipartFile img){
return uploadService.uploadImg(img);
}
}
- Service层接口
public interface UploadService {
ResponseResult uploadImg(MultipartFile img);
}
- Service层实现类
说明objectName是上传到BUCKET_NAME中（即Bucket）文件的路径和文件名
import com.aliyun.oss.ClientException;
import com.aliyun.oss.OSS;
import com.aliyun.oss.OSSClientBuilder;
import com.aliyun.oss.OSSException;
import com.aliyun.oss.model.ObjectMetadata;
import com.xha.domain.ResponseResult;
import com.xha.service.UploadService;
import com.xha.utils.ImgUtils;
import com.xha.utils.OssUtils;
import org.springframework.stereotype.Service;
import org.springframework.web.multipart.MultipartFile;
import java.io.IOException;
import java.io.InputStream;
@Service
public class UploadServiceImpl implements UploadService {
/**
* 文件上传阿里云OSS
*
* @param imgFile
* @return
*/
@Override
public ResponseResult uploadImg(MultipartFile imgFile) {
// 1.获取到原始文件名
String originalFilename = imgFile.getOriginalFilename();
String fileName = ImgUtils.generateFilePath(originalFilename);
String imgUrl = ossUpload(imgFile, fileName);
return ResponseResult.okResult(imgUrl);
}
private String ossUpload(MultipartFile multipartFile, String fileName) {
// 创建OSSClient实例。
OSS ossClient = new OSSClientBuilder()
.build(OssUtils.END_POINT, OssUtils.ACCESS_KEY_ID, OssUtils.ACCESS_KEY_SECRET);
// 填写Object完整路径，完整路径中不能包含Bucket名称，例如exampledir/exampleobject.txt。
String objectName = "文件目录/" + fileName;
try {
InputStream inputStream = multipartFile.getInputStream();
// 创建PutObject请求。
ossClient.putObject(OssUtils.BUCKET_NAME, objectName, inputStream);
} catch (OSSException oe) {
System.out.println("Caught an OSSException, which means your request made it to OSS, "
+ "but was rejected with an error response for some reason.");
System.out.println("Error Message:" + oe.getErrorMessage());
System.out.println("Error Code:" + oe.getErrorCode());
System.out.println("Request ID:" + oe.getRequestId());
System.out.println("Host ID:" + oe.getHostId());
} catch (ClientException ce) {
System.out.println("Caught an ClientException, which means the client encountered "
+ "a serious internal problem while trying to communicate with OSS, "
+ "such as not being able to access the network.");
System.out.println("Error Message:" + ce.getMessage());
} catch (IOException e) {
e.printStackTrace();
} finally {
if (ossClient != null) {
ossClient.shutdown();
}
}
// 返回对象存储中的图片路径
return "https://" + OssUtils.BUCKET_NAME + "." + OssUtils.END_POINT + "/" + objectName;
}
}
5.接口测试
- 采用ApiFox发送请求
文件列表中已经存在了上传的图片
-
前端项目测试
上传成功
