feat: 增加附件表结构与本地上传接口

src/main/java/com/bruce/common/controller/SysAttachmentController.java

@@ -0,0 +1,31 @@
+package com.bruce.common.controller;
+
+import com.bruce.common.entity.SysAttachment;
+import com.bruce.common.service.ISysAttachmentService;
+import io.swagger.v3.oas.annotations.Operation;
+import io.swagger.v3.oas.annotations.tags.Tag;
+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;
+
+@Tag(name = "系统附件管理")
+@RestController
+@RequestMapping("/api/attachments")
+public class SysAttachmentController {
+
+    private final ISysAttachmentService sysAttachmentService;
+
+    public SysAttachmentController(ISysAttachmentService sysAttachmentService) {
+        this.sysAttachmentService = sysAttachmentService;
+    }
+
+    @Operation(summary = "上传附件")
+    @PostMapping("/upload")
+    public SysAttachment upload(@RequestParam("file") MultipartFile file,
+                                @RequestParam String sourceType,
+                                @RequestParam(required = false) Long sourceId) {
+        return sysAttachmentService.upload(file, sourceType, sourceId);
+    }
+}