文件上传

CommonController:

package com.sky.controller.admin;

import com.sky.constant.MessageConstant;
import com.sky.result.Result;
import com.sky.utils.AliOssUtil;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
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.RequestParam;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.multipart.MultipartFile;

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

@Slf4j
@Api(tags = "通用接口")
@RestController
@RequestMapping("/admin/common")
public class CommonController {

    @Autowired
    private AliOssUtil aliOssUtil;

    @ApiOperation(value = "文件上传")
    @PostMapping("/upload")
    public Result<String> upload(MultipartFile file) {
        log.info("文件上传：{}", file);
        try {
//            原始文件名
            String originalFilename = file.getOriginalFilename();
//            截取原始文件名的后缀
            String extension = originalFilename.substring(originalFilename.lastIndexOf("."));
//            构建文件的名称,即在oss中的名字
            String objectName = UUID.randomUUID().toString() + extension;
//            返回访问的网址
            String filePath = aliOssUtil.upload(file.getBytes(), objectName);

            return Result.success(filePath);

        } catch (IOException e) {
            log.error("文件上传失败: {}", e);
            log.error(e.getMessage(), e);
            e.printStackTrace();
        }
        return Result.error(MessageConstant.UPLOAD_FAILED);
    }
}

AliOssUtil:

package com.sky.utils;

import com.aliyun.oss.ClientException;
import com.aliyun.oss.OSS;
import com.aliyun.oss.OSSClientBuilder;
import com.aliyun.oss.OSSException;
import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.extern.slf4j.Slf4j;
import java.io.ByteArrayInputStream;

@Data
@AllArgsConstructor
@Slf4j
public class AliOssUtil {

    private String endpoint;
    private String accessKeyId;
    private String accessKeySecret;
    private String bucketName;

    /**
     * 文件上传
     *
     * @param bytes
     * @param objectName
     * @return
     */
    public String upload(byte[] bytes, String objectName) {

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

        try {
            // 创建PutObject请求。
            ossClient.putObject(bucketName, objectName, new ByteArrayInputStream(bytes));
        } 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());
        } finally {
            if (ossClient != null) {
                ossClient.shutdown();
            }
        }

        //文件访问路径规则 https://BucketName.Endpoint/ObjectName
        StringBuilder 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();
    }
}

OssConfiguration：

package com.sky.config;

import com.sky.properties.AliOssProperties;
import com.sky.utils.AliOssUtil;
import lombok.extern.slf4j.Slf4j;
import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

/**
 * 配置类，用于创建AliOssUtil对象
 */
@Configuration
@Slf4j
public class OssConfiguration {
    @Bean
    @ConditionalOnMissingBean
    public AliOssUtil aliOssUtil(AliOssProperties aliOssProperties) {
        log.info("开始创建阿里云文件上传对象：{}", aliOssProperties);
        return new AliOssUtil(aliOssProperties.getEndpoint(),
                aliOssProperties.getAccessKeyId(),
                aliOssProperties.getAccessKeySecret(),
                aliOssProperties.getBucketName()) {
        };
    }
}

AliOssProperties:

package com.sky.properties;

import lombok.Data;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.stereotype.Component;

@Component
@ConfigurationProperties(prefix = "sky.alioss")
@Data
public class AliOssProperties {

    private String endpoint;
    private String accessKeyId;
    private String accessKeySecret;
    private String bucketName;

}

application.yml 配置文件

server:
  port: 8080

spring:
  profiles:
    active: dev
  main:
    allow-circular-references: true
  datasource:
    druid:
      driver-class-name: ${sky.datasource.driver-class-name}
      url: jdbc:mysql://${sky.datasource.host}:${sky.datasource.port}/${sky.datasource.database}?serverTimezone=Asia/Shanghai&useUnicode=true&characterEncoding=utf-8&zeroDateTimeBehavior=convertToNull&useSSL=false&allowPublicKeyRetrieval=true
      username: ${sky.datasource.username}
      password: ${sky.datasource.password}
      # 设置最大空闲时间，单位毫秒，默认8小时
      max-evictable-idle-time-millis: 300000
      # 设置最小空闲时间，单位毫秒，默认3分钟
      min-evictable-idle-time-millis: 180000
      # 设置心跳检测SQL，确保连接有效
      validation-query: SELECT 1
      # 测试连接是否可用
      test-on-borrow: true

mybatis:
  #mapper配置文件
  mapper-locations: classpath:mapper/*.xml
  type-aliases-package: com.sky.entity
  configuration:
    #开启驼峰命名
    map-underscore-to-camel-case: true

logging:
  level:
    com:
      sky:
        mapper: debug
        service: info
        controller: info

sky:
  jwt:
    # 设置jwt签名加密时使用的秘钥
    admin-secret-key: itcast
    # 设置jwt过期时间
    admin-ttl: 997200000
    # 设置前端传递过来的令牌名称
    admin-token-name: token
  alioss:
    endpoint: ${sky.alioss.endpoint}
    access-key-id: ${sky.alioss.access-key-id}
    access-key-secret: ${sky.alioss.access-key-secret}
    bucket-name: ${sky.alioss.bucket-name}

sky:
  datasource:
    driver-class-name: com.mysql.cj.jdbc.Driver
    host: localhost
    port: 3306
    database: sky_take_out
    username: root
    password: 123456
  alioss:
    endpoint: ？？？？？？？？？
    access-key-id: ？？？？？？？？？
    access-key-secret: 3？？？？？？？？？
    bucket-name: ？？？？？？？？？