属性值规则（规则组）

SLN/%PUBPRJ%-util/src/main/java/%SYS_PKGPATH%/util/service/ValueRuleValidator.java.ftl

@@ -96,7 +96,7 @@ public class ValueRuleValidator implements ConstraintValidator<ValueRuleCheck, D
     <#assign targetFieldName=fieldRule.getDEFName()><#comment>目标属性名称</#comment>
     <#assign targetDEField=((de.getPSDEField(targetFieldName,true))!'')><#comment>目标属性</#comment>
     <#assign targetDBValueOP=fieldRule.getCondOp()><#comment>表达式</#comment>
-    <#assign targetValue=fieldRule.getParamValue()><#comment>值项</#comment>
+    <#assign targetValue=((fieldRule.getParamValue())!'')><#comment>值项</#comment>
     <#if targetDEField!=''>
         <#assign targetFieldName=srfcaseformat(targetDEField.codeName,'l_u2lC')>
     </#if>