init:微信账单下载到本地

src/main/java/com/saye/hgddmz/controller/GetDateController.java

@@ -921,6 +921,23 @@ public class GetDateController {
             return responseMap;
         }
 
+        // 将原始账单内容落地，便于后续人工核对或重复导入
+        try {
+            File csvFile = FileUtil.file(localPath, trade_date + ".csv");
+            File txtFile = FileUtil.file(localPath, trade_date + ".txt");
+            FileUtil.mkParentDirs(csvFile);
+            FileUtil.writeUtf8String(body1, csvFile);
+            FileUtil.writeUtf8String(body1, txtFile);
+            log.info("微信账单已保存到本地: {}, {}", csvFile.getAbsolutePath(), txtFile.getAbsolutePath());
+        } catch (IORuntimeException e) {
+            log.error("微信账单保存本地失败，路径: {}, 错误: {}", localPath, e.getMessage(), e);
+            errCode = "999";
+            errMsg = "微信账单保存本地失败：" + e.getMessage();
+            responseMap.put("errCode", errCode);
+            responseMap.put("errMsg", errMsg);
+            return responseMap;
+        }
+
         String[] split = body1.split("\n");
         for (int i = 1; i < split.length - 2; i++) {
             String[] split1 = split[i].split(",");