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在业务中我们往往需要上传文件如图片#xff0c;文件上传#xff0c;是指将本地图片、视频、音频等文件上传到服务器上#xff0c;可以供其他用户浏览或下载的过程。文件上传在项目中应用非常广泛#xff0c;我们经常发抖音、发朋友圈都用到了文件上传功能。 实现文件…背景
在业务中我们往往需要上传文件如图片文件上传是指将本地图片、视频、音频等文件上传到服务器上可以供其他用户浏览或下载的过程。文件上传在项目中应用非常广泛我们经常发抖音、发朋友圈都用到了文件上传功能。 实现文件上传服务需要有存储的支持那么我们的解决方案将以下几种 直接将图片保存到服务的硬盘springmvc中的文件上传 优点开发便捷成本低缺点扩容困难 使用分布式文件系统进行存储 优点容易实现扩容缺点开发复杂度稍大有成熟的产品可以使用比如FastDFS,MinIO 使用第三方的存储服务例如OSS 优点开发简单拥有强大功能免维护缺点付费 1.定义OSS相关配置 application-dev.yml
sky:alioss:endpoint: oss-cn-hangzhou.aliyuncs.comaccess-key-id: LTAI5tPeFLzsPPT8gG3LPW64access-key-secret: U6k1brOZ8gaOIXv3nXbulGTUzy6Pd7bucket-name: sky-take-outapplication.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}
2). 读取OSS配置 在sky-common模块中已定义
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;}3). 生成OSS工具类对象
在sky-server模块
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 {BeanConditionalOnMissingBeanpublic 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());}
}其中AliOssUtil.java已在sky-common模块中定义
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/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();}
}4). 定义文件上传接口
在sky-server模块中定义接口
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 {Autowiredprivate AliOssUtil aliOssUtil;/*** 文件上传* param file* return*/PostMapping(/upload)ApiOperation(文件上传)public ResultString 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.pngString 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);return Result.success(filePath);} catch (IOException e) {log.error(文件上传失败{}, e);}return Result.error(MessageConstant.UPLOAD_FAILED);}
}
