Excel导出功能

yzg-util-db/src/main/java/com/yanzuoguang/excel/ExcelConsole.java

@@ -161,7 +161,7 @@ public class ExcelConsole<T extends Object> implements DbRow<T> {
         rowIndex += head.getTotalRow();
 
         // 创建合并对象数据检测
-        mergerData = new HashMap<>();
+        mergerData = new HashMap<>(head.getTotalColumn());
     }
 
     /**