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三十六、案例-文件上传-阿里云OSS-集成

news 2025/9/11 14:57:55

阿里云OSS集成-介绍

阿里云OSS集成-步骤

代码

UploadController类

package com.itheima.controller;import com.itheima.pojo.Result;
import com.itheima.utils.AliOSSUtils;
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.RestController;
import org.springframework.web.multipart.MultipartFile;import java.io.IOException;@Slf4j
@RestController
public class UploadController {@Autowiredprivate AliOSSUtils aliOSSUtils;@PostMapping("/upload")public Result upload(MultipartFile image) throws IOException {log.info("文件上传, 文件名: {}", image.getOriginalFilename());//调用阿里云OSS工具类进行文件上传String url = aliOSSUtils.upload(image);log.info("文件上传完成,文件访问的url: {}", url);return Result.success(url);}}

AliOSSUtils类（存放于utils文件夹下，并且代码中的endpoint 、accessKeyId、accessKeySecret 、bucketName 填自己的）

工具类项目目录

package com.itheima.utils;import com.aliyun.oss.OSS;
import com.aliyun.oss.OSSClientBuilder;
import org.springframework.stereotype.Component;
import org.springframework.web.multipart.MultipartFile;
import java.io.*;
import java.util.UUID;/*** 阿里云 OSS 工具类*/
@Component
public class AliOSSUtils {private String endpoint = "填阿里云官网OSS界面对应的信息";private String accessKeyId = "填阿里云官网OSS界面对应的信息";private String accessKeySecret = "填阿里云官网OSS界面对应的信息";private String bucketName = "填阿里云官网OSS界面对应的信息";/*** 实现上传图片到OSS*/public String upload(MultipartFile file) throws IOException {// 获取上传的文件的输入流InputStream inputStream = file.getInputStream();// 避免文件覆盖String originalFilename = file.getOriginalFilename();String fileName = UUID.randomUUID().toString() + originalFilename.substring(originalFilename.lastIndexOf("."));//上传文件到 OSSOSS ossClient = new OSSClientBuilder().build(endpoint, accessKeyId, accessKeySecret);ossClient.putObject(bucketName, fileName, inputStream);//文件访问路径String url = endpoint.split("//")[0] + "//" + bucketName + "." + endpoint.split("//")[1] + "/" + fileName;// 关闭ossClientossClient.shutdown();return url;// 把上传到oss的路径返回}}

pom.xml类（注意引入阿里云OSS要求的依赖）

<dependency><groupId>com.aliyun.oss</groupId><artifactId>aliyun-sdk-oss</artifactId><version>3.17.4</version>
</dependency>

注意：如果使用的是Java 9及以上的版本，则需要添加以下JAXB相关依赖。

<dependency><groupId>javax.xml.bind</groupId><artifactId>jaxb-api</artifactId><version>2.3.1</version>
</dependency>
<dependency><groupId>javax.activation</groupId><artifactId>activation</artifactId><version>1.1.1</version>
</dependency>
<!-- no more than 2.3.3-->
<dependency><groupId>org.glassfish.jaxb</groupId><artifactId>jaxb-runtime</artifactId><version>2.3.3</version>
</dependency>