diff --git a/jero-boot/jero-boot-base/jero-boot-base-core/src/main/java/com/jero/common/system/query/QueryGenerator.java b/jero-boot/jero-boot-base/jero-boot-base-core/src/main/java/com/jero/common/system/query/QueryGenerator.java
index 5a711c8d3..b8157a18c 100644
--- a/jero-boot/jero-boot-base/jero-boot-base-core/src/main/java/com/jero/common/system/query/QueryGenerator.java
+++ b/jero-boot/jero-boot-base/jero-boot-base-core/src/main/java/com/jero/common/system/query/QueryGenerator.java
@@ -486,53 +486,58 @@ public class QueryGenerator {
 		}
 		name = oConvertUtils.camelToUnderline(name);
 		log.info("--查询规则-->"+name+" "+rule.getValue()+" "+value);
-		switch (rule) {
-		case GT:
-			queryWrapper.gt(name, value);
-			break;
-		case GE:
-			queryWrapper.ge(name, value);
-			break;
-		case LT:
-			queryWrapper.lt(name, value);
-			break;
-		case LE:
-			queryWrapper.le(name, value);
-			break;
-		case EQ:
-		case EQ_WITH_ADD:
-			queryWrapper.eq(name, value);
-			break;
-		case NE:
-			queryWrapper.ne(name, value);
-			break;
-		case IN:
-			if(value instanceof String) {
-				queryWrapper.in(name, (Object[])value.toString().split(","));
-			}else if(value instanceof String[]) {
-				queryWrapper.in(name, (Object[]) value);
+		if(" is null ".equals(value)){
+			queryWrapper.isNull(name);
+		}else{
+			switch (rule) {
+				case GT:
+					queryWrapper.gt(name, value);
+					break;
+				case GE:
+					queryWrapper.ge(name, value);
+					break;
+				case LT:
+					queryWrapper.lt(name, value);
+					break;
+				case LE:
+					queryWrapper.le(name, value);
+					break;
+				case EQ:
+				case EQ_WITH_ADD:
+					queryWrapper.eq(name, value);
+					break;
+				case NE:
+					queryWrapper.ne(name, value);
+					break;
+				case IN:
+					if(value instanceof String) {
+						queryWrapper.in(name, (Object[])value.toString().split(","));
+					}else if(value instanceof String[]) {
+						queryWrapper.in(name, (Object[]) value);
+					}
+					//update-begin-author:taoyan date:20200909 for:【bug】in 类型多值查询 不适配postgresql #1671
+					else if(value.getClass().isArray()) {
+						queryWrapper.in(name, (Object[])value);
+					}else {
+						queryWrapper.in(name, value);
+					}
+					//update-end-author:taoyan date:20200909 for:【bug】in 类型多值查询 不适配postgresql #1671
+					break;
+				case LIKE:
+					queryWrapper.like(name, value);
+					break;
+				case LEFT_LIKE:
+					queryWrapper.likeLeft(name, value);
+					break;
+				case RIGHT_LIKE:
+					queryWrapper.likeRight(name, value);
+					break;
+				default:
+					log.info("--查询规则未匹配到---");
+					break;
 			}
-			//update-begin-author:taoyan date:20200909 for:【bug】in 类型多值查询 不适配postgresql #1671
-			else if(value.getClass().isArray()) {
-				queryWrapper.in(name, (Object[])value);
-			}else {
-				queryWrapper.in(name, value);
-			}
-			//update-end-author:taoyan date:20200909 for:【bug】in 类型多值查询 不适配postgresql #1671
-			break;
-		case LIKE:
-			queryWrapper.like(name, value);
-			break;
-		case LEFT_LIKE:
-			queryWrapper.likeLeft(name, value);
-			break;
-		case RIGHT_LIKE:
-			queryWrapper.likeRight(name, value);
-			break;
-		default:
-			log.info("--查询规则未匹配到---");
-			break;
 		}
+
 	}
 	/**
 	 *