diff --git a/src/main/java/xyz/zhouxy/plusone/commons/jdbc/DbRecord.java b/src/main/java/xyz/zhouxy/plusone/commons/jdbc/DbRecord.java
index 9b8e544..120d26e 100644
--- a/src/main/java/xyz/zhouxy/plusone/commons/jdbc/DbRecord.java
+++ b/src/main/java/xyz/zhouxy/plusone/commons/jdbc/DbRecord.java
@@ -78,4 +78,9 @@ public class DbRecord extends AbstractMapWrapper<String, Object, DbRecord> {
     protected DbRecord getSelf() {
         return this;
     }
+
+    @Override
+    public String toString() {
+        return "xyz.zhouxy.plusone.commons.jdbc.DbRecord@" + super.toString();
+    }
 }
diff --git a/src/main/java/xyz/zhouxy/plusone/commons/util/AbstractMapWrapper.java b/src/main/java/xyz/zhouxy/plusone/commons/util/AbstractMapWrapper.java
index 8ebd436..dea4355 100644
--- a/src/main/java/xyz/zhouxy/plusone/commons/util/AbstractMapWrapper.java
+++ b/src/main/java/xyz/zhouxy/plusone/commons/util/AbstractMapWrapper.java
@@ -144,6 +144,11 @@ public abstract class AbstractMapWrapper<K, V, T extends AbstractMapWrapper<K, V
 
     protected abstract T getSelf();
 
+    @Override
+    public String toString() {
+        return this.map.toString();
+    }
+
     protected abstract static class Builder<K, V> {
         protected final Map<K, V> map;
         protected Consumer<K> keyChecker;