diff --git a/mailbox-lan/src/main/java/com/biutag/lan/controller/DataController.java b/mailbox-lan/src/main/java/com/biutag/lan/controller/DataController.java
index 7d78733..616f7e7 100644
--- a/mailbox-lan/src/main/java/com/biutag/lan/controller/DataController.java
+++ b/mailbox-lan/src/main/java/com/biutag/lan/controller/DataController.java
@@ -74,5 +74,10 @@ public class DataController {
         DataSearchValidate dataSearchValidate = JSON.parseObject(data,DataSearchValidate.class);
         dataService.exportsource(response, dataSearchValidate);
     }
-        
+    @NotPower
+    @PostMapping("exportcategory")
+    public void exportcategory(HttpServletResponse response, @RequestBody String data) throws IOException {
+        DataSearchValidate dataSearchValidate = JSON.parseObject(data,DataSearchValidate.class);
+        dataService.exportcategory(response, dataSearchValidate);
+    }
 }
diff --git a/mailbox-lan/src/main/java/com/biutag/lan/service/DataService.java b/mailbox-lan/src/main/java/com/biutag/lan/service/DataService.java
index e69912a..654e8e2 100644
--- a/mailbox-lan/src/main/java/com/biutag/lan/service/DataService.java
+++ b/mailbox-lan/src/main/java/com/biutag/lan/service/DataService.java
@@ -461,4 +461,58 @@ public class DataService extends ServiceImpl<DataMapper, Mail> {
             }
         }
     }
+
+    public void exportcategory(HttpServletResponse response, DataSearchValidate dataSearchValidate) throws IOException {
+        List<List<String>> head = new ArrayList<>();
+        List<Map<String,Object>> list = new ArrayList<>();
+        List<List<Object>> data1 = new ArrayList<>();
+        List<String> variables = new ArrayList<>();
+        list = getsourcelist(new Page<>(1, 10000),dataSearchValidate).getRecords();
+        System.out.println(list);
+        Map<String ,Object> item_one = list.get(0);
+        for (Map.Entry<String, Object> entry : item_one.entrySet()) {
+            // 获取键和值
+            String key = entry.getKey();
+            Object value = entry.getValue();
+            // 打印键和值
+            if (key.contains("name")&&!key.contains("second_dept_name")){
+                variables.add(value.toString());
+            }
+        }
+        head.add(List.of("局长信箱即接即办信件来源统计","单位名称","单位名称"));
+        head.add(List.of("局长信箱即接即办信件来源统计","信件总量","信件总量"));
+        for (int i = 0;i<variables.size();i++){
+            head.add(List.of("局长信箱即接即办信件来源统计",variables.get(i),"数量"));
+            head.add(List.of("局长信箱即接即办信件来源统计",variables.get(i),"占比"));
+        }
+        for (Map<String ,Object> item : list){
+            List<Object> list_item = new ArrayList<>();
+            list_item.add(item.get("second_dept_name1"));
+            list_item.add(item.get("allcount1"));
+            for (int i = 0;i<variables.size();i++){
+                System.out.println("EEEEEEEEEEEEEEEE"+variables.size());
+                System.out.println("EEEEEEEEEEEEEEEE"+item.get("countrate"+(i + 1)));
+                list_item.add(item.get("sumcount"+(i + 1)));
+                list_item.add(item.get("countrate"+(i + 1)));
+            }
+            data1.add(list_item);
+        }
+        response.setContentType("application/vnd.openxmlformats-officedocument.spreadsheetml.sheet");
+        response.setCharacterEncoding("UTF-8");
+        try (OutputStream out = response.getOutputStream()) {
+            // 使用EasyExcel写入数据到输出流
+            ExcelWriter excelWriter = EasyExcel.write(out).build();
+            WriteSheet writeSheet = EasyExcel.writerSheet("局长信箱即接即办信件三率统计").head(head).automaticMergeHead(true).build();
+            excelWriter.write(data1, writeSheet);
+            excelWriter.finish();
+        } catch (Exception e) {
+            log.error("Exception occurred while exporting mail data" + e.getMessage(), e);
+            // 如果response还没有被提交，返回一个错误信息
+            if (!response.isCommitted()) {
+                response.reset();
+                response.setStatus(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
+                response.getWriter().write("Failed to export data due to an internal error.");
+            }
+        }
+    }
 }
\ No newline at end of file