Spring Boot配置属性

application-dev.yml

sky:
  alioss:
    endpoint: oss-cn-hangzhou.aliyuncs.com
    access-key-id: LTAI5tPeFLzsPPT8gG3LPW64
    access-key-secret: U6k1brOZ8gaOIXv3nXbulGTUzy6Pd7
    bucket-name: sky-take-out

application.yml

spring:
  profiles:
    active: dev    #设置环境
sky:
  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}

在$ROOT/common/.../propoties下读取配置（AliOssUtil.java已在common模块中定义 ）

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;

}

在$ROOT/server/.../conifg下配置，生成工具类对象

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工具类对象：{}",aliOssProperties);
        return new AliOssUtil(aliOssProperties.getEndpoint(),
                aliOssProperties.getAccessKeyId(),
                aliOssProperties.getAccessKeySecret(),
                aliOssProperties.getBucketName());
    }
}

定义上传文件的controller

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.RestController;
import org.springframework.web.multipart.MultipartFile;
import java.io.IOException;
import java.util.UUID;

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

    @Autowired
    private AliOssUtil aliOssUtil;

    /**
     * 文件上传
     * @param file
     * @return
     */
    @PostMapping("/upload")
    @ApiOperation("文件上传")
    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   dfdfdf.png
            String extension = originalFilename.substring(originalFilename.lastIndexOf("."));
            //构造新文件名称
            String objectName = UUID.randomUUID().toString() + extension;

            //文件的请求路径
            String filePath = aliOssUtil.upload(file.getBytes(), objectName);
            
            String realFilePath = "https://yjy-rjwm-oss.oss-cn-hangzhou.aliyuncs.com/316e669e-4e0d-4644-81e8-89cb5701148f.jpg";
            return Result.success(realFilePath);
        } catch (IOException e) {
            log.error("文件上传失败：{}", e);
        }

        return Result.error(MessageConstant.UPLOAD_FAILED);
    }
}