diff --git a/src/main/java/weaver/xiao/commons/config/service/DealWithMapping.java b/src/main/java/weaver/xiao/commons/config/service/DealWithMapping.java
index a9af287..e9b168e 100644
--- a/src/main/java/weaver/xiao/commons/config/service/DealWithMapping.java
+++ b/src/main/java/weaver/xiao/commons/config/service/DealWithMapping.java
@@ -5,6 +5,7 @@ import com.google.common.base.Strings;
 import lombok.AllArgsConstructor;
 import lombok.Data;
 import lombok.NoArgsConstructor;
+import org.apache.commons.collections.MapUtils;
 import org.apache.commons.lang3.StringUtils;
 import org.apache.log4j.Logger;
 import weaver.conn.RecordSet;
@@ -670,7 +671,7 @@ public class DealWithMapping extends ToolUtil {
 					} else {
 						tempValue = Util.null2String(mainMap.get(fieldName));
 						if ("".equals(tempValue)) {
-							tempValue = Util.null2String(detailMap.get(fieldNameLower));
+							tempValue = Util.null2String(mainMap.get(fieldNameLower));
 						}
 					}
 				}