add check for String

alexxiyang · Jan 30, 2019 · 24f5d85 · 24f5d85
1 parent 17c80fc
commit 24f5d85
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/src/main/java/org/crazycake/shiro/RedisCache.java b/src/main/java/org/crazycake/shiro/RedisCache.java
@@ -142,7 +142,9 @@ private String getStringRedisKey(K key) {
 
 	private String getRedisKeyFromPrincipalIdField(PrincipalCollection key) {
 		Object principalObject = key.getPrimaryPrincipal();
-
+		if (principalObject instanceof String) {
+		    return principalObject.toString();
+		}
 		Method pincipalIdGetter = getPrincipalIdGetter(principalObject);
 		return getIdObj(principalObject, pincipalIdGetter);
 	}