#?????
spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
spring.datasource.url=jdbc:mysql://localhost:3306/tlias
spring.datasource.username=root
spring.datasource.password=mysql

#??mybatis?????
mybatis.configuration.log-impl=org.apache.ibatis.logging.stdout.StdOutImpl

#???????? ? ??????????
mybatis.configuration.map-underscore-to-camel-case=true

#配置單個文件最大上傳大小
spring.servlet.multipart.max-file-size=10MB

#配置單個請求最大上傳大小(一次請求可以上傳多個文件)
spring.servlet.multipart.max-request-size=100MB

#自定義的阿里云OSS配置信息
aliyun.oss.endpoint=https://oss-cn-hangzhou.aliyuncs.com
aliyun.oss.accessKeyId=LTAI4GCH1vX6DKqJWxd6nEuW
aliyun.oss.accessKeySecret=yBshYweHOpqDuhCArrVHwIiBKpyqSL
aliyun.oss.bucketName=web-tlias

@Value("${配置文件中的key}")

@Component
public class AliOSSUtils {

    @Value("${aliyun.oss.endpoint}")
    private String endpoint;
    
    @Value("${aliyun.oss.accessKeyId}")
    private String accessKeyId;
    
    @Value("${aliyun.oss.accessKeySecret}")
    private String accessKeySecret;
    
    @Value("${aliyun.oss.bucketName}")
    private String bucketName;
 	
 	//省略其他代碼...
 }   

server.port=8080
server.address=127.0.0.1

server:
	port: 8080
	address: 127.0.0.1

server:
	port: 8080
	address: 127.0.0.1

<server>
	<port>8080</port>
	<address>127.0.0.1</address>
</server>

user:
	name: Tom
	age: 20
	address: beijing

hobby:
	- Java
	- C
	- Python

package com.intelligent_learning_aid_system.utils;

import lombok.Data;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.stereotype.Component;

@Data
@Component
@ConfigurationProperties(prefix = "aliyun.oss")
public class AliOSSUtilsProperties {
    private String endpoint;

    private String accessKeyId;

    private String accessKeySecret;

    private String bucketName;
}

package com.intelligent_learning_aid_system.utils;

import com.aliyun.oss.OSS;
import com.aliyun.oss.OSSClientBuilder;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Component;
import org.springframework.web.multipart.MultipartFile;

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

/**
 * 阿里云 OSS 工具類
 */
@Component
public class AliOSSUtils {
    @Autowired
    private AliOSSUtilsProperties aliOSSUtilsProperties;

    public String upload(MultipartFile file) throws IOException {
        // 獲取配置文件中的值
        String endpoint = aliOSSUtilsProperties.getEndpoint();
        String accessKeyId = aliOSSUtilsProperties.getAccessKeyId();
        String accessKeySecret = aliOSSUtilsProperties.getAccessKeySecret();
        String bucketName = aliOSSUtilsProperties.getBucketName();


        // 獲取上傳文件的  輸入流
        InputStream inputStream = file.getInputStream();

        // 避免文件覆蓋
        String originalFilename = file.getOriginalFilename();
        String fileName = UUID.randomUUID().toString() + originalFilename.substring(originalFilename.lastIndexOf("."));

        // 上傳到OSS
        OSS ossClient = new OSSClientBuilder().build(endpoint, accessKeyId, accessKeySecret);
        ossClient.putObject(bucketName, fileName, inputStream);

        //文件訪問路徑
        String url = endpoint.split("http://")[0] + "http://" + bucketName + "." + endpoint.split("http://")[1] + "/" + fileName;

        // 關(guān)閉ossClient
        ossClient.shutdown();
        return url;// 把上傳到oss的路徑返回
    }

}

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-configuration-processor</artifactId>
</dependency>