feat(file): 优化文件上传下载接口

- 添加 MediaType 导入以支持 multipart 表单数据
- 修改上传接口 consumes 属性为 MULTIPART_FORM_DATA_VALUE
- 使用 @RequestPart 注解明确指定文件参数
- 将下载接口路径参数改为查询参数 path
- 统一代码缩进风格为四个空格

zkh-file/src/main/java/vip/jcfd/file/controller/FileController.java

@@ -9,6 +9,7 @@ import io.swagger.v3.oas.annotations.tags.Tag;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.springframework.core.io.Resource;
+import org.springframework.http.MediaType;
 import org.springframework.http.ResponseEntity;
 import org.springframework.web.bind.annotation.*;
 import org.springframework.web.multipart.MultipartFile;
@@ -38,10 +39,10 @@ public class FileController {
     @ApiResponse(responseCode = "200", description = "上传成功",
             content = @Content(mediaType = "application/json",
                     schema = @Schema(implementation = R.class)))
-	@PostMapping
+    @PostMapping(consumes = MediaType.MULTIPART_FORM_DATA_VALUE)
     public R<FileInfo> upload(
             @Parameter(description = "要上传的文件", required = true, name = "file")
-			MultipartFile file) {
+            @RequestPart("file") MultipartFile file) {
         try {
             FileInfo upload = fileUploadService.upload(file);
             return R.success(upload);
@@ -54,10 +55,10 @@ public class FileController {
     @Operation(summary = "下载文件", description = "根据文件路径下载文件")
     @ApiResponse(responseCode = "200", description = "下载成功")
     @ApiResponse(responseCode = "404", description = "文件未找到")
-	@GetMapping("{path}")
+    @GetMapping
     public ResponseEntity<Resource> download(
             @Parameter(description = "文件路径", required = true)
-			@PathVariable String path) {
+            @RequestParam("path") String path) {
         Path normalize = Paths.get(path).normalize();
         try {
             Resource download = fileDownloadService.download(normalize.toString());