spzx-manager/src/main/java/com/atguigu/spzx/manger/controller/CategoryController.java

@@ -30,9 +30,8 @@ public class CategoryController {
 
     @Operation(summary = "导出数据", description = "导出数据")
     @GetMapping(value = "/exportData")
-    public Result<String> exportData(HttpServletResponse response) {
+    public void exportData(HttpServletResponse response) {
         categoryService.exportData(response);
-        return Result.success();
     }
 
     @Operation(summary = "导入功能", description = "导入功能")

spzx-manager/src/main/java/com/atguigu/spzx/manger/service/impl/CategoryServiceImpl.java

@@ -61,7 +61,7 @@ public class CategoryServiceImpl implements CategoryService {
             response.setCharacterEncoding("utf-8");
 
             String filename = URLEncoder.encode("分类数据", StandardCharsets.UTF_8);
-            response.setHeader("Content-dispostion", "attachment;filename=" + filename + ".xlsx");
+            response.setHeader("Content-disposition", "attachment;filename=" + filename + ".xlsx");
 
             // 查询数据库中的数据
             List<Category> categoryList = categoryMapper.selectAll();