0.application.yml文件中编写配置

sky:alioss: endpoint: 地域节点(概览查看)access-key-id: 密钥账号access-key-secret: 密钥密码bucket-name: Bucket名称spring:servlet:multipart:max-request-size: 100MB # 最大请求文件大小,默认10MBmax-file-size: 10MB # 单个请求文件大小,默认1MB

1.导入依赖

<!--阿里云对象存储-->
<dependency><groupId>com.aliyun.oss</groupId><artifactId>aliyun-sdk-oss</artifactId><version>3.10.2</version>
</dependency>
<dependency><groupId>com.aliyun</groupId><artifactId>aliyun-java-sdk-core</artifactId><version>4.0.6</version>
</dependency>

2.导入工具类

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 lombok.Data;
import lombok.extern.slf4j.Slf4j;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.stereotype.Component;import java.io.InputStream;
import java.text.SimpleDateFormat;
import java.util.Date;@Data
@Slf4j
@Component
@ConfigurationProperties(prefix = "sky.alioss")
public class AliOssUtil {private String endpoint;private String accessKeyId;private String accessKeySecret;private String bucketName;/*** 文件上传** @param fileName* @param inputStream* @return*/public String upload(String fileName, InputStream inputStream) {// 创建OSSClient实例。OSS ossClient = new OSSClientBuilder().build(endpoint, accessKeyId, accessKeySecret);String objectName = "images/" + new SimpleDateFormat("yyyy/MM/dd").format(new Date())+ "/" + System.currentTimeMillis() +"-"+fileName;try {//解决图片预览问题（默认是下载）ObjectMetadata metadata = new ObjectMetadata();metadata.setContentType(getContentType(fileName.substring(fileName.lastIndexOf("."))));// 创建PutObject请求。ossClient.putObject(bucketName, objectName, inputStream,metadata);} catch (OSSException oe) {System.out.println("Error Message:" + oe.getErrorMessage());} catch (ClientException ce) {System.out.println("Error Message:" + ce.getMessage());} finally {if (ossClient != null) {ossClient.shutdown();}}//文件访问路径规则 https://BucketName.Endpoint/ObjectNameStringBuilder stringBuilder = new StringBuilder("https://");stringBuilder.append(bucketName).append(".").append(endpoint).append("/").append(objectName);log.info("文件上传到:{}", stringBuilder.toString());return stringBuilder.toString();}private String getContentType(String filenameExtension) {if (filenameExtension.equalsIgnoreCase(".bmp")) {return "image/bmp";}if (filenameExtension.equalsIgnoreCase(".gif")) {return "image/gif";}if (filenameExtension.equalsIgnoreCase(".jpeg") ||filenameExtension.equalsIgnoreCase(".jpg") ||filenameExtension.equalsIgnoreCase(".png")) {return "image/jpg";}return "image/jpg";}
}

3.导入Controller

import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.multipart.MultipartFile;import java.io.IOException;@RestController
@RequestMapping("/brand/upload")
@Slf4j
public class CommonController {@Autowiredprivate AliOssUtil aliOssUtil;//文件上传@PostMappingpublic Result upload(MultipartFile file) throws IOException {String path = aliOssUtil.upload(file.getOriginalFilename(), file.getInputStream());log.info("图片上传之后的访问路径是{}", path);return Result.success(path);}
}