diff --git a/src/main/java/com/rebuild/server/configuration/ConfigManager.java b/src/main/java/com/rebuild/server/configuration/ConfigManager.java
index b2837aec1..79fba59a9 100644
--- a/src/main/java/com/rebuild/server/configuration/ConfigManager.java
+++ b/src/main/java/com/rebuild/server/configuration/ConfigManager.java
@@ -25,7 +25,12 @@ package com.rebuild.server.configuration;
  * @since 01/04/2019
  */
 public interface ConfigManager<T> {
-	
+
+	/**
+	 * 已删除项标记
+	 */
+	String DELETED_ITEM = "$$RB_DELETED$$";
+
 	/**
 	 * 清理缓存
 	 * 
diff --git a/src/main/java/com/rebuild/server/configuration/portals/ClassificationManager.java b/src/main/java/com/rebuild/server/configuration/portals/ClassificationManager.java
index aed74f7ad..8b3b9737d 100644
--- a/src/main/java/com/rebuild/server/configuration/portals/ClassificationManager.java
+++ b/src/main/java/com/rebuild/server/configuration/portals/ClassificationManager.java
@@ -62,18 +62,19 @@ public class ClassificationManager implements ConfigManager<ID> {
 		final String ckey = "ClassificationNAME-" + itemId;
 		String[] cached = (String[]) Application.getCommonCache().getx(ckey);
 		if (cached != null) {
-			return cached;
+			return cached[0].equals(DELETED_ITEM) ? null : cached;
 		}
-		
+
 		Object[] o = Application.createQueryNoFilter(
 				"select name,fullName from ClassificationData where itemId = ?")
 				.setParameter(1, itemId)
 				.unique();
-		if (o != null) {
-			cached = new String[] { (String) o[0], (String) o[1] };
-			Application.getCommonCache().putx(ckey, cached);
-		}
-		return cached;
+		if (o != null) cached = new String[] { (String) o[0], (String) o[1] };
+		// 可能已删除
+		if (cached == null) cached = new String[] { DELETED_ITEM, DELETED_ITEM };
+
+		Application.getCommonCache().putx(ckey, cached);
+		return cached[0].equals(DELETED_ITEM) ? null : cached;
 	}
 	
 	/**
diff --git a/src/main/java/com/rebuild/server/configuration/portals/PickListManager.java b/src/main/java/com/rebuild/server/configuration/portals/PickListManager.java
index f0d91951a..faa495bbc 100644
--- a/src/main/java/com/rebuild/server/configuration/portals/PickListManager.java
+++ b/src/main/java/com/rebuild/server/configuration/portals/PickListManager.java
@@ -39,7 +39,7 @@ public class PickListManager implements ConfigManager<Object> {
 
 	public static final PickListManager instance = new PickListManager();
 	protected PickListManager() { }
-	
+
 	/**
 	 * @param field
 	 * @return
@@ -119,18 +119,19 @@ public class PickListManager implements ConfigManager<Object> {
 		final String ckey = "PickListLABEL-" + itemId;
 		String cached = Application.getCommonCache().get(ckey);
 		if (cached != null) {
-			return cached;
+			return cached.equals(DELETED_ITEM) ? null : cached;
 		}
-		
+
 		Object[] o = Application.createQueryNoFilter(
 				"select text from PickList where itemId = ?")
 				.setParameter(1, itemId)
 				.unique();
-		if (o != null) {
-			cached = (String) o[0];
-		}
+		if (o != null) cached = (String) o[0];
+		// 可能已删除
+		if (cached == null) cached = DELETED_ITEM;
+
 		Application.getCommonCache().put(ckey, cached);
-		return cached;
+		return cached.equals(DELETED_ITEM) ? null : cached;
 	}
 	
 	/**
diff --git a/src/main/java/com/rebuild/server/helper/cache/BaseCacheTemplate.java b/src/main/java/com/rebuild/server/helper/cache/BaseCacheTemplate.java
index b7b54dfc5..0d8e64880 100644
--- a/src/main/java/com/rebuild/server/helper/cache/BaseCacheTemplate.java
+++ b/src/main/java/com/rebuild/server/helper/cache/BaseCacheTemplate.java
@@ -79,6 +79,10 @@ public abstract class BaseCacheTemplate<V extends Serializable> implements Cache
 
 	@Override
 	public void put(String key, String value, int seconds) {
+		if (value == null) {
+			LOG.warn("Can't set `" + key + "` to null");
+			return;
+		}
 		delegate.put(unityKey(key), value, seconds);
 	}
 
@@ -94,6 +98,10 @@ public abstract class BaseCacheTemplate<V extends Serializable> implements Cache
 
 	@Override
 	public void putx(String key, V value, int seconds) {
+		if (value == null) {
+			LOG.warn("Can't set `" + key + "` to null");
+			return;
+		}
 		delegate.putx(unityKey(key), value, seconds);
 	}
 
diff --git a/src/main/java/com/rebuild/server/helper/cache/EhcacheDriver.java b/src/main/java/com/rebuild/server/helper/cache/EhcacheDriver.java
index ae2f42c23..c97144981 100644
--- a/src/main/java/com/rebuild/server/helper/cache/EhcacheDriver.java
+++ b/src/main/java/com/rebuild/server/helper/cache/EhcacheDriver.java
@@ -25,6 +25,7 @@ import org.springframework.cache.Cache.ValueWrapper;
 import org.springframework.cache.CacheManager;
 
 import java.io.Serializable;
+import java.util.Objects;
 
 /**
  * ehcache
@@ -53,6 +54,8 @@ public class EhcacheDriver<V extends Serializable> implements CacheTemplate<V> {
 
 	@Override
 	public void put(String key, String value, int seconds) {
+		Objects.requireNonNull(value, "`value` not be null");
+
 		Element el = new Element(key, value);
 		if (seconds > -1) {
 			el.setTimeToLive(seconds);
@@ -74,6 +77,8 @@ public class EhcacheDriver<V extends Serializable> implements CacheTemplate<V> {
 
 	@Override
 	public void putx(String key, V value, int seconds) {
+		Objects.requireNonNull(value, "`value` not be null");
+
 		Element el = new Element(key, value);
 		if (seconds > -1) {
 			el.setTimeToLive(seconds);
diff --git a/src/main/java/com/rebuild/server/helper/cache/JedisCacheDriver.java b/src/main/java/com/rebuild/server/helper/cache/JedisCacheDriver.java
index c488bd4cc..2c55a8975 100644
--- a/src/main/java/com/rebuild/server/helper/cache/JedisCacheDriver.java
+++ b/src/main/java/com/rebuild/server/helper/cache/JedisCacheDriver.java
@@ -24,6 +24,7 @@ import redis.clients.jedis.Jedis;
 import redis.clients.jedis.JedisPool;
 
 import java.io.Serializable;
+import java.util.Objects;
 
 /**
  * redis
@@ -58,6 +59,8 @@ public class JedisCacheDriver<V extends Serializable> implements CacheTemplate<V
 
 	@Override
 	public void put(String key, String value, int seconds) {
+		Objects.requireNonNull(value, "`value` not be null");
+
 		Jedis jedis = null;
 		try {
 			jedis = jedisPool.getResource();
@@ -99,6 +102,8 @@ public class JedisCacheDriver<V extends Serializable> implements CacheTemplate<V
 
 	@Override
 	public void putx(String key, V value, int seconds) {
+		Objects.requireNonNull(value, "`value` not be null");
+
 		Jedis jedis = null;
 		try {
 			jedis = jedisPool.getResource();