feat(file): 添加本地存储服务- 新增 LocalFileService 类实现本地文件上传和删除功能

- 在 application-dev.yml 和 application-prod.yml 中添加本地存储配置

src/main/java/com/youlai/boot/shared/file/service/impl/LocalFileService.java

@@ -0,0 +1,74 @@
+package com.youlai.boot.shared.file.service.impl;
+
+import cn.hutool.core.date.DateUtil;
+import cn.hutool.core.io.FileUtil;
+import cn.hutool.core.util.IdUtil;
+import com.youlai.boot.shared.file.model.FileInfo;
+import com.youlai.boot.shared.file.service.FileService;
+import lombok.Data;
+import lombok.RequiredArgsConstructor;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
+import org.springframework.boot.context.properties.ConfigurationProperties;
+import org.springframework.stereotype.Component;
+import org.springframework.web.multipart.MultipartFile;
+
+import java.io.File;
+import java.io.InputStream;
+import java.time.LocalDateTime;
+
+/**
+ * 本地存储服务类
+ *
+ * @author Theo
+ * @since 2024-12-09 17:11
+ */
+@Component
+@ConditionalOnProperty(value = "oss.type", havingValue = "local")
+@ConfigurationProperties(prefix = "oss.local")
+@RequiredArgsConstructor
+@Data
+public class LocalFileService implements FileService {
+
+    @Value("${oss.local.storage-path}")
+    private String storagePath;
+
+    @Override
+    public FileInfo uploadFile(MultipartFile file) {
+        // 生成文件名(日期文件夹)
+        String suffix = FileUtil.getSuffix(file.getOriginalFilename());
+        String uuid = IdUtil.simpleUUID();
+        String folder = DateUtil.format(LocalDateTime.now(), "yyyyMMdd") + File.separator;
+        String fileName =  uuid + "." + suffix;
+        String filePrefix = storagePath.endsWith(File.separator) ? storagePath : storagePath + File.separator;
+        //  try-with-resource 语法糖自动释放流
+        try (InputStream inputStream = file.getInputStream()) {
+            // 上传文件
+            FileUtil.writeFromStream(inputStream, filePrefix +folder+ fileName);
+        } catch (Exception e) {
+            e.printStackTrace();
+            throw new RuntimeException("文件上传失败");
+        }
+        // 获取文件访问路径，因为这里是本地存储，所以直接返回文件的相对路径，需要前端自行处理访问前缀
+        String fileUrl = File.separator +folder+File.separator + fileName;
+        FileInfo fileInfo = new FileInfo();
+        fileInfo.setName(fileName);
+        fileInfo.setUrl(fileUrl);
+        return fileInfo;
+    }
+
+    @Override
+    public boolean deleteFile(String filePath) {
+        //判断文件是否为空
+        if (filePath == null || filePath.isEmpty()) {
+            return false;
+        }
+        // 判断filepath是否为文件夹
+        if (FileUtil.isDirectory(storagePath + filePath)) {
+            // 禁止删除文件夹
+            return false;
+        }
+        // 删除文件
+        return FileUtil.del(storagePath + filePath);
+    }
+}