diff --git a/api/pom.xml b/api/pom.xml
index 5ddac05..0786e86 100644
--- a/api/pom.xml
+++ b/api/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <groupId>cc.carm.lib</groupId>
         <artifactId>easysql-parent</artifactId>
-        <version>0.3.12</version>
+        <version>0.3.13</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/api/src/main/java/cc/carm/lib/easysql/api/function/SQLDebugHandler.java b/api/src/main/java/cc/carm/lib/easysql/api/function/SQLDebugHandler.java
index 0a5cf8a..d3d2600 100644
--- a/api/src/main/java/cc/carm/lib/easysql/api/function/SQLDebugHandler.java
+++ b/api/src/main/java/cc/carm/lib/easysql/api/function/SQLDebugHandler.java
@@ -5,6 +5,7 @@ import cc.carm.lib.easysql.api.SQLQuery;
 import cc.carm.lib.easysql.api.action.PreparedSQLUpdateAction;
 import cc.carm.lib.easysql.api.action.PreparedSQLUpdateBatchAction;
 import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
 import org.slf4j.Logger;
 
 import java.util.Arrays;
@@ -24,7 +25,7 @@ public interface SQLDebugHandler {
      * @param params 执行传入的参数列表。
      *               实际上，仅有 {@link PreparedSQLUpdateAction} 和 {@link PreparedSQLUpdateBatchAction} 才会有传入参数。
      */
-    void beforeExecute(@NotNull SQLAction<?> action, @NotNull List<Object[]> params);
+    void beforeExecute(@NotNull SQLAction<?> action, @NotNull List<@Nullable Object[]> params);
 
     /**
      * 该方法将在 {@link SQLQuery#close()} 执行后调用。
@@ -39,7 +40,7 @@ public interface SQLDebugHandler {
     static SQLDebugHandler defaultHandler(Logger logger) {
         return new SQLDebugHandler() {
             @Override
-            public void beforeExecute(@NotNull SQLAction<?> action, @NotNull List<Object[]> params) {
+            public void beforeExecute(@NotNull SQLAction<?> action, @NotNull List<@Nullable Object[]> params) {
                 logger.info("┏━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━");
                 logger.info("┣# ActionUUID: {}", action.getActionUUID());
                 logger.info("┣# ActionType: {}", action.getClass().getName());
@@ -54,12 +55,18 @@ public interface SQLDebugHandler {
                 }
                 if (params.size() == 1) {
                     Object[] param = params.get(0);
-                    logger.info("┣# SQLParams({}): {}", param.length, Arrays.stream(param).map(Object::toString).reduce((a, b) -> a + ", " + b).orElse(""));
+                    if (param != null) {
+                        logger.info("┣# SQLParams({}): {}", param.length, Arrays.stream(param).map(Object::toString).reduce((a, b) -> a + ", " + b).orElse(""));
+                    }
                 } else if (params.size() > 1) {
                     logger.info("┣# SQLParams: ");
                     int i = 0;
                     for (Object[] param : params) {
-                        logger.info("┃ [{}] {}", ++i, Arrays.stream(param).map(Object::toString).reduce((a, b) -> a + ", " + b).orElse(""));
+                        if (param != null) {
+                            logger.info("┃ [{}] {}", ++i, Arrays.stream(param).map(Object::toString).reduce((a, b) -> a + ", " + b).orElse(""));
+                        } else {
+                            logger.info("┃ [{}] {}", ++i, "<#NULL>");
+                        }
                     }
                 }
                 logger.info("┣# createTime: {}", action.getCreateTime());
@@ -71,7 +78,7 @@ public interface SQLDebugHandler {
                 logger.info("┏━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━");
                 logger.info("┣# ActionUUID: {}", query.getAction().getActionUUID());
                 logger.info("┣# SQLContent: {}", query.getSQLContent());
-                logger.info("┣# executeCote: {} ms", (closeTime - executeTime));
+                logger.info("┣# executeCost: {} ms", (closeTime - executeTime));
                 logger.info("┗━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━");
             }
         };
diff --git a/example/demo/pom.xml b/example/demo/pom.xml
index 4f57522..b7da692 100644
--- a/example/demo/pom.xml
+++ b/example/demo/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <artifactId>easysql-parent</artifactId>
         <groupId>cc.carm.lib</groupId>
-        <version>0.3.12</version>
+        <version>0.3.13</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
     <modelVersion>4.0.0</modelVersion>
@@ -17,6 +17,8 @@
         <maven.compiler.encoding>UTF-8</maven.compiler.encoding>
         <maven.javadoc.skip>true</maven.javadoc.skip>
         <maven.deploy.skip>true</maven.deploy.skip>
+
+        <log4j.version>2.17.2</log4j.version>
     </properties>
 
     <artifactId>easysql-demo</artifactId>
@@ -80,6 +82,27 @@
             <scope>test</scope>
         </dependency>
 
+        <dependency>
+            <groupId>org.apache.logging.log4j</groupId>
+            <artifactId>log4j-api</artifactId>
+            <version>${log4j.version}</version>
+            <scope>compile</scope>
+        </dependency>
+
+        <dependency>
+            <groupId>org.apache.logging.log4j</groupId>
+            <artifactId>log4j-core</artifactId>
+            <version>${log4j.version}</version>
+            <scope>compile</scope>
+        </dependency>
+
+        <dependency>
+            <groupId>org.apache.logging.log4j</groupId>
+            <artifactId>log4j-slf4j-impl</artifactId>
+            <version>${log4j.version}</version>
+            <scope>compile</scope>
+        </dependency>
+
     </dependencies>
 
     <build>
diff --git a/example/demo/src/test/java/cc/carm/lib/easysql/EasySQLTest.java b/example/demo/src/test/java/cc/carm/lib/easysql/EasySQLTest.java
index 420fcec..c197a02 100644
--- a/example/demo/src/test/java/cc/carm/lib/easysql/EasySQLTest.java
+++ b/example/demo/src/test/java/cc/carm/lib/easysql/EasySQLTest.java
@@ -22,6 +22,7 @@ public class EasySQLTest {
         config.setJdbcUrl("jdbc:h2:mem:test;DB_CLOSE_DELAY=-1;MODE=MYSQL;");
 
         SQLManager sqlManager = new SQLManagerImpl(new HikariDataSource(config), "test");
+        sqlManager.setDebugMode(true);
 
         print("加载测试类...");
         Set<TestHandler> tests = new LinkedHashSet<>();
diff --git a/impl/pom.xml b/impl/pom.xml
index 903e35a..c7de688 100644
--- a/impl/pom.xml
+++ b/impl/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <artifactId>easysql-parent</artifactId>
         <groupId>cc.carm.lib</groupId>
-        <version>0.3.12</version>
+        <version>0.3.13</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/impl/src/main/java/cc/carm/lib/easysql/action/PreparedSQLBatchUpdateActionImpl.java b/impl/src/main/java/cc/carm/lib/easysql/action/PreparedSQLBatchUpdateActionImpl.java
index 3179545..1f990bc 100644
--- a/impl/src/main/java/cc/carm/lib/easysql/action/PreparedSQLBatchUpdateActionImpl.java
+++ b/impl/src/main/java/cc/carm/lib/easysql/action/PreparedSQLBatchUpdateActionImpl.java
@@ -19,7 +19,7 @@ public class PreparedSQLBatchUpdateActionImpl
         implements PreparedSQLUpdateBatchAction {
 
     boolean returnKeys = false;
-    List<Object[]> allParams;
+    @NotNull List<Object[]> allParams;
 
     public PreparedSQLBatchUpdateActionImpl(@NotNull SQLManagerImpl manager, @NotNull String sql) {
         super(manager, sql);
diff --git a/pom.xml b/pom.xml
index dddb11f..da39c98 100644
--- a/pom.xml
+++ b/pom.xml
@@ -17,7 +17,7 @@
     <groupId>cc.carm.lib</groupId>
     <artifactId>easysql-parent</artifactId>
     <packaging>pom</packaging>
-    <version>0.3.12</version>
+    <version>0.3.13</version>
 
     <modules>
         <module>api</module>
diff --git a/with-pool/beecp/pom.xml b/with-pool/beecp/pom.xml
index 4fbd1aa..96c8cdc 100644
--- a/with-pool/beecp/pom.xml
+++ b/with-pool/beecp/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <artifactId>easysql-parent</artifactId>
         <groupId>cc.carm.lib</groupId>
-        <version>0.3.12</version>
+        <version>0.3.13</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
     <modelVersion>4.0.0</modelVersion>
diff --git a/with-pool/hikaricp/pom.xml b/with-pool/hikaricp/pom.xml
index 1abb366..2a76a46 100644
--- a/with-pool/hikaricp/pom.xml
+++ b/with-pool/hikaricp/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <artifactId>easysql-parent</artifactId>
         <groupId>cc.carm.lib</groupId>
-        <version>0.3.12</version>
+        <version>0.3.13</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
     <modelVersion>4.0.0</modelVersion>