diff --git a/sink/src/main/java/work/xuye/sink/handler/ItemHandler.java b/sink/src/main/java/work/xuye/sink/handler/ItemHandler.java
index d74a0b1..7a0149f 100644
--- a/sink/src/main/java/work/xuye/sink/handler/ItemHandler.java
+++ b/sink/src/main/java/work/xuye/sink/handler/ItemHandler.java
@@ -10,6 +10,7 @@ import org.springframework.util.DigestUtils;
 import org.springframework.util.ObjectUtils;
 import work.xuye.common.constant.MessageConstants;
 import work.xuye.common.constant.StageConstants;
+import work.xuye.common.db.entity.Mapping;
 import work.xuye.common.db.entity.Task;
 import work.xuye.common.db.entity.vo.SinkParams;
 import work.xuye.common.db.entity.vo.TableTemplate;
@@ -83,7 +84,9 @@ public class ItemHandler {
 
         SinkParams.CheckDelete checkDeleteConfig = taskVO.getTask().getSinkParams().getCheckDelete();
         // 根据消息体，和映射关系，使用SpEL表达式，得到计算结果
-        HashMap<String, Object> expressionResultMap = evaluator.evaluate(taskVO.getTemplateMappingMap().get(templateName).getTableMapping(), message);
+        Map<String, Mapping> templateMappingMap = taskVO.getTemplateMappingMap();
+        Mapping mapping = templateMappingMap.get(templateName);
+        HashMap<String, Object> expressionResultMap = evaluator.evaluate(mapping.getTableMapping(), message);
         // 如果不能通过校验，则抛出异常
         this.validate(expressionResultMap, template);
         // 将计算结果合并到模板中，此刻的模板是拥有值的