将苍穹外卖原本使用的AliyunOss服务改为本地存储并提供访问
仓库地址: 链接
我的做法
application-dev.yml
sky:
file:
local-oss-path: 本地绝对路径
local-oss-url: http://localhost:8080 # 本地访问地址
CommonController.java
package com.sky.controller.admin;
import com.sky.result.Result;
import com.sky.utils.LocalOssUtil;
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;
/**
* @author tz95
* @project sky-take-out
* @date 2025/5/28
*/
@RestController
@RequestMapping("/admin/common")
@Api(tags = "公共接口")
@Slf4j
public class CommonController {
@Autowired
private LocalOssUtil localOssUtil;
/**
* 文件上传
* @param file 上传的文件
* @return 文件资源url
*/
@PostMapping("/upload")
@ApiOperation("文件上传")
public Result<String> upload(MultipartFile file){
log.info("上传文件：{}", file.getOriginalFilename());
String url;
try {
String originalFilename = file.getOriginalFilename();
String extension = originalFilename.substring(originalFilename.lastIndexOf("."));
// 生成唯一的文件名
String uniqueFileName = UUID.randomUUID().toString() + extension;
url = localOssUtil.save(file.getBytes(), uniqueFileName);
return Result.success(url);
} catch (IOException e) {
log.error("文件上传失败：{}", e.getMessage());
return Result.error("文件上传失败");
} catch (Exception e) {
log.error("文件上传异常：{}", e.getMessage());
return Result.error("文件上传异常");
}
}
}
FileProperties.java
package com.sky.properties;
import lombok.Data;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.stereotype.Component;
/**
* @author tz95
* @project sky-take-out
* @date 2025/5/28
*/
@Component
@ConfigurationProperties(prefix = "sky.file")
@Data
public class FileProperties {
private String localOssPath;
private String localOssUrl;
}
FileUploadFailureException.java
package com.sky.exception;
/**
* @author tz95
* @project sky-take-out
* @date 2025/5/28
*/
public class FileUploadFailureException extends BaseException {
public FileUploadFailureException(String message) {
super(message);
}
}
GlobalExceptionHandler.java
@ExceptionHandler
public Result fileUploadFailureHandler(FileUploadException ex){
log.error("文件上传失败: {}", ex.getMessage());
return Result.error(MessageConstant.UPLOAD_FAILED);
}
LocalOssConfiguration.java
package com.sky.config;
import com.sky.properties.FileProperties;
import com.sky.utils.LocalOssUtil;
import lombok.extern.slf4j.Slf4j;
import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
/**
* @author tz95
* @project sky-take-out
* @date 2025/5/28
*/
@Configuration
@Slf4j
public class LocalOssConfiguration {
@Bean
@ConditionalOnMissingBean
public LocalOssUtil localOssUtil(FileProperties fileProperties) {
log.info("本地文件上传工具类创建：{}", fileProperties);
return new LocalOssUtil(fileProperties.getLocalOssPath(),
fileProperties.getLocalOssUrl());
}
}
LocalOssUtil.java
package com.sky.utils;
import com.sky.exception.FileUploadFailureException;
import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.extern.slf4j.Slf4j;
/**
* @author tz95
* @project sky-take-out
* @date 2025/5/28
*/
@Data
@AllArgsConstructor
@Slf4j
public class LocalOssUtil {
private String localOssPath;
private String localOssUrl;
/**
* 文件保存
*
* @param bytes 文件字节数组
* @param objectName 文件名
* @return 文件访问路径
*/
public String save(byte[] bytes, String objectName){
// 拼接文件路径
String filePath = localOssPath + objectName;
try {
// 将字节数组写入文件
java.nio.file.Files.write(java.nio.file.Paths.get(filePath), bytes);
} catch (java.io.IOException e) {
throw new FileUploadFailureException(e.getMessage());
}
log.info("文件上传到: {}", filePath);
StringBuilder stringBuilder = new StringBuilder(localOssUrl)
.append("/")
.append("images/")
.append(objectName);
// 返回文件访问路径
return stringBuilder.toString();
}
}
LocalResourceController.java (因该需求单一且我想偷懒，我直接在Controller中处理了该业务，但这样不利于扩展且代码耦合度增加，编写时最好使用Service层进行处理)
package com.sky.controller;
import lombok.extern.slf4j.Slf4j;
import org.springframework.http.MediaType;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Paths;
/**
* @author tz95
* @project sky-take-out
* @date 2025/5/28
*/
@RestController
@RequestMapping("/images")
@Slf4j
public class LocalResourceController {
@GetMapping("/{file}")
public ResponseEntity<byte[]> getImage(@PathVariable String file) {
byte[] bytes;
try {
bytes = Files.readAllBytes(Paths.get("D:/images/" + file));
} catch (IOException e) {
log.error("文件读取失败：{}", e.getMessage());
return ResponseEntity.notFound().build();
}
return ResponseEntity.ok()
.contentType(MediaType.IMAGE_PNG)
.body(bytes);
}
}
