diff --git a/pom.xml b/pom.xml
index e94c26f..21a0290 100644
--- a/pom.xml
+++ b/pom.xml
@@ -110,6 +110,19 @@
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-webflux</artifactId>
         </dependency>
+
+
+        <!-- 添加POI依赖用于Excel操作 -->
+        <dependency>
+            <groupId>org.apache.poi</groupId>
+            <artifactId>poi-ooxml</artifactId>
+            <version>5.2.3</version>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.poi</groupId>
+            <artifactId>poi</artifactId>
+            <version>5.2.3</version>
+        </dependency>
     </dependencies>
 
     <build>
diff --git a/src/main/java/com/example/javatest/Controller/admin/AccountController.java b/src/main/java/com/example/javatest/Controller/admin/AccountController.java
index 9178a92..d5797cc 100644
--- a/src/main/java/com/example/javatest/Controller/admin/AccountController.java
+++ b/src/main/java/com/example/javatest/Controller/admin/AccountController.java
@@ -1,16 +1,21 @@
 package com.example.javatest.Controller.admin;
 
 import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
+import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
 import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
 
 import com.example.javatest.Entity.admin.Account;
 import com.example.javatest.Mapper.admin.AccountMapper;
 import com.example.javatest.common.Result;
 import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.http.ResponseEntity;
 import org.springframework.transaction.annotation.Transactional;
 import org.springframework.web.bind.annotation.*;
 
+import java.text.SimpleDateFormat;
+import java.time.LocalDate;
 import java.time.LocalDateTime;
+import java.util.*;
 
 @RestController
 @RequestMapping("/admin/accounts")
@@ -179,4 +184,22 @@ public class AccountController {
         Page<Account> resultPage = accountMapper.selectPage(page, queryWrapper);
         return Result.success(resultPage);
     }
+
+    @GetMapping("/statistics/cumulative-users-by-loop")
+    public Map<String, Object> getCumulativeUserCountByLoop() {
+        List<String> dates = new ArrayList<>();
+        List<Long> userCounts = new ArrayList<>();
+        LocalDate today = LocalDate.now();
+        for (int i = 0; i < 7; i++) {
+            LocalDate queryDate = today.minusDays(i);
+            LocalDateTime endOfDay = queryDate.plusDays(1).atStartOfDay();
+            Long totalCount = accountMapper.countTotalUpTo(endOfDay);
+            dates.add(queryDate.toString());
+            userCounts.add(totalCount);
+        }
+        return Map.of(
+                "dates", dates,
+                "userCounts", userCounts
+        );
+    }
 }
\ No newline at end of file
diff --git a/src/main/java/com/example/javatest/Controller/admin/DishController.java b/src/main/java/com/example/javatest/Controller/admin/DishController.java
index 2881f76..6efeb52 100644
--- a/src/main/java/com/example/javatest/Controller/admin/DishController.java
+++ b/src/main/java/com/example/javatest/Controller/admin/DishController.java
@@ -7,10 +7,19 @@ import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
 
 import com.example.javatest.Entity.admin.Dish;
 import com.example.javatest.Mapper.admin.DishMapper;
+import org.apache.poi.ss.usermodel.Cell;
+import org.apache.poi.ss.usermodel.Row;
+import org.apache.poi.ss.usermodel.Sheet;
+import org.apache.poi.ss.usermodel.Workbook;
+import org.apache.poi.xssf.usermodel.XSSFWorkbook;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.beans.factory.annotation.Qualifier;
+import org.springframework.http.HttpHeaders;
+import org.springframework.http.MediaType;
+import org.springframework.http.ResponseEntity;
 import org.springframework.web.bind.annotation.*;
 
+import java.io.ByteArrayOutputStream;
 import java.time.LocalDateTime;
 import java.util.List;
 
@@ -120,4 +129,65 @@ public class DishController {
         return dishMapper.selectList(new LambdaQueryWrapper<Dish>()
                 .orderByDesc(Dish::getCreatedAt));
     }
+
+    /**
+     * 导出当前分类的菜品数据到Excel
+     * @param category 分类名称
+     * @return Excel文件响应
+     */
+    @GetMapping("/export/{category}")
+    public ResponseEntity<byte[]> exportDishesToExcel(@PathVariable String category) {
+        // 查询当前分类的所有菜品
+        List<Dish> dishes = dishMapper.selectList(
+                new LambdaQueryWrapper<Dish>()
+                        .eq(Dish::getCategory, category)
+        );
+
+        try (Workbook workbook = new XSSFWorkbook()) {
+            Sheet sheet = workbook.createSheet("菜品数据");
+
+            // 创建表头
+            String[] headers = {"菜品ID", "菜品名称", "分类", "价格", "库存", "状态", "描述", "累计销售", "标签"};
+            Row headerRow = sheet.createRow(0);
+            for (int i = 0; i < headers.length; i++) {
+                Cell cell = headerRow.createCell(i);
+                cell.setCellValue(headers[i]);
+            }
+
+            // 填充数据
+            int rowNum = 1;
+            for (Dish dish : dishes) {
+                Row row = sheet.createRow(rowNum++);
+                row.createCell(0).setCellValue(dish.getDishId());
+                row.createCell(1).setCellValue(dish.getDishName());
+                row.createCell(2).setCellValue(dish.getCategory());
+                row.createCell(3).setCellValue(dish.getPrice().doubleValue());
+                row.createCell(4).setCellValue(dish.getStock());
+                row.createCell(5).setCellValue(dish.getStatus());
+                row.createCell(6).setCellValue(dish.getDescription());
+                row.createCell(7).setCellValue(dish.getSales());
+                row.createCell(8).setCellValue(dish.getTag());
+            }
+
+            // 自动调整列宽
+            for (int i = 0; i < headers.length; i++) {
+                sheet.autoSizeColumn(i);
+            }
+
+            // 写入字节数组
+            ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
+            workbook.write(outputStream);
+
+            // 设置响应头
+            HttpHeaders responseHeaders = new HttpHeaders();
+            responseHeaders.setContentType(MediaType.APPLICATION_OCTET_STREAM);
+            responseHeaders.setContentDispositionFormData("attachment", "菜品数据_" + category + ".xlsx");
+
+            return ResponseEntity.ok()
+                    .headers(responseHeaders)
+                    .body(outputStream.toByteArray());
+        } catch (Exception e) {
+            throw new RuntimeException("导出Excel失败: " + e.getMessage());
+        }
+    }
 }
\ No newline at end of file
diff --git a/src/main/java/com/example/javatest/Mapper/admin/AccountMapper.java b/src/main/java/com/example/javatest/Mapper/admin/AccountMapper.java
index c42229f..99598c7 100644
--- a/src/main/java/com/example/javatest/Mapper/admin/AccountMapper.java
+++ b/src/main/java/com/example/javatest/Mapper/admin/AccountMapper.java
@@ -3,7 +3,13 @@ package com.example.javatest.Mapper.admin;
 import com.baomidou.mybatisplus.core.mapper.BaseMapper;
 import com.example.javatest.Entity.admin.Account;
 import org.apache.ibatis.annotations.Mapper;
+import org.apache.ibatis.annotations.Param;
+import org.apache.ibatis.annotations.Select;
+
+import java.time.LocalDateTime;
 
 @Mapper
 public interface AccountMapper extends BaseMapper<Account> {
+    @Select("SELECT COUNT(account_id) FROM account WHERE is_deleted = 0 AND created_at < #{endOfDay}")
+    Long countTotalUpTo(@Param("endOfDay") LocalDateTime endOfDay);
 }
\ No newline at end of file
diff --git a/src/main/java/org/example/cgpro/CGproApplication.java b/src/main/java/org/example/cgpro/CGproApplication.java
new file mode 100644
index 0000000..4eed4ec
--- /dev/null
+++ b/src/main/java/org/example/cgpro/CGproApplication.java
@@ -0,0 +1,13 @@
+package org.example.cgpro;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+public class CGproApplication {
+
+    public static void main(String[] args) {
+        SpringApplication.run(CGproApplication.class, args);
+    }
+
+}
diff --git a/src/test/java/org/example/cgpro/CGproApplicationTests.java b/src/test/java/org/example/cgpro/CGproApplicationTests.java
new file mode 100644
index 0000000..7ceee7f
--- /dev/null
+++ b/src/test/java/org/example/cgpro/CGproApplicationTests.java
@@ -0,0 +1,13 @@
+package org.example.cgpro;
+
+import org.junit.jupiter.api.Test;
+import org.springframework.boot.test.context.SpringBootTest;
+
+@SpringBootTest
+class CGproApplicationTests {
+
+    @Test
+    void contextLoads() {
+    }
+
+}