diff --git a/mybatis-flex-solon-plugin/src/main/java/com/mybatisflex/solon/integration/MybatisAdapterFactoryFlex.java b/mybatis-flex-solon-plugin/src/main/java/com/mybatisflex/solon/integration/MybatisAdapterFactoryFlex.java
index 1c2376b9..d331e4e4 100644
--- a/mybatis-flex-solon-plugin/src/main/java/com/mybatisflex/solon/integration/MybatisAdapterFactoryFlex.java
+++ b/mybatis-flex-solon-plugin/src/main/java/com/mybatisflex/solon/integration/MybatisAdapterFactoryFlex.java
@@ -1,17 +1,34 @@
+/*
+ *  Copyright (c) 2022-2023, Mybatis-Flex (fuhai999@gmail.com).
+ *  <p>
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *  <p>
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *  <p>
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+
 package com.mybatisflex.solon.integration;
 
-import org.noear.solon.core.BeanWrap;
-import org.noear.solon.core.Props;
 import org.apache.ibatis.solon.MybatisAdapter;
 import org.apache.ibatis.solon.MybatisAdapterFactory;
+import org.noear.solon.core.BeanWrap;
+import org.noear.solon.core.Props;
 
 /**
- * 适配器工厂 for mybatis-flex
+ * MyBatis-Flex 适配器工厂。
  *
  * @author noear
  * @since 2.2
  */
 public class MybatisAdapterFactoryFlex implements MybatisAdapterFactory {
+
     @Override
     public MybatisAdapter create(BeanWrap dsWrap) {
         return new MybatisAdapterFlex(dsWrap);
@@ -21,4 +38,5 @@ public class MybatisAdapterFactoryFlex implements MybatisAdapterFactory {
     public MybatisAdapter create(BeanWrap dsWrap, Props dsProps) {
         return new MybatisAdapterFlex(dsWrap, dsProps);
     }
+
 }
diff --git a/mybatis-flex-solon-plugin/src/main/java/com/mybatisflex/solon/integration/MybatisAdapterFlex.java b/mybatis-flex-solon-plugin/src/main/java/com/mybatisflex/solon/integration/MybatisAdapterFlex.java
index 625c1da6..bd2e16cb 100644
--- a/mybatis-flex-solon-plugin/src/main/java/com/mybatisflex/solon/integration/MybatisAdapterFlex.java
+++ b/mybatis-flex-solon-plugin/src/main/java/com/mybatisflex/solon/integration/MybatisAdapterFlex.java
@@ -1,3 +1,19 @@
+/*
+ *  Copyright (c) 2022-2023, Mybatis-Flex (fuhai999@gmail.com).
+ *  <p>
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *  <p>
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *  <p>
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+
 package com.mybatisflex.solon.integration;
 
 import com.mybatisflex.core.FlexGlobalConfig;
@@ -17,15 +33,19 @@ import org.noear.solon.core.event.EventBus;
 import javax.sql.DataSource;
 
 /**
- * 适配器 for mybatis-flex
+ * MyBatis-Flex 适配器。
  *
  * @author noear
  * @since 2.2
  */
 public class MybatisAdapterFlex extends MybatisAdapterDefault {
+
     FlexSqlSessionFactoryBuilder factoryBuilderPlus;
+
     FlexGlobalConfig globalConfig;
 
+    RowMapperInvoker rowMapperInvoker;
+
     protected MybatisAdapterFlex(BeanWrap dsWrap) {
         super(dsWrap);
 
@@ -107,25 +127,23 @@ public class MybatisAdapterFlex extends MybatisAdapterDefault {
         return factory;
     }
 
-    RowMapperInvoker rowMapperInvoker;
-
     @Override
     public void injectTo(VarHolder varH) {
         super.injectTo(varH);
 
-        //@Db("db1") FlexGlobalConfig globalConfig;
+        // @Db("db1") FlexGlobalConfig globalConfig
         if (FlexGlobalConfig.class.isAssignableFrom(varH.getType())) {
             varH.setValue(this.getGlobalConfig());
             return;
         }
 
-        //@Db("db1") RowMapperInvoker rowMapper;
+        // @Db("db1") RowMapperInvoker rowMapper
         if (RowMapperInvoker.class.equals(varH.getType())) {
             if (rowMapperInvoker == null) {
                 rowMapperInvoker = new RowMapperInvoker(getFactory());
             }
             varH.setValue(rowMapperInvoker);
-            return;
         }
     }
+
 }
diff --git a/mybatis-flex-solon-plugin/src/main/java/com/mybatisflex/solon/integration/XPluginImpl.java b/mybatis-flex-solon-plugin/src/main/java/com/mybatisflex/solon/integration/XPluginImpl.java
index 2d18826e..5e386fe3 100644
--- a/mybatis-flex-solon-plugin/src/main/java/com/mybatisflex/solon/integration/XPluginImpl.java
+++ b/mybatis-flex-solon-plugin/src/main/java/com/mybatisflex/solon/integration/XPluginImpl.java
@@ -1,3 +1,19 @@
+/*
+ *  Copyright (c) 2022-2023, Mybatis-Flex (fuhai999@gmail.com).
+ *  <p>
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *  <p>
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *  <p>
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+
 package com.mybatisflex.solon.integration;
 
 import org.apache.ibatis.solon.integration.MybatisAdapterManager;
@@ -5,15 +21,16 @@ import org.noear.solon.core.AopContext;
 import org.noear.solon.core.Plugin;
 
 /**
+ * 配置 MyBatis-Flex 插件。
+ *
  * @author noear
  * @since 2.2
  */
 public class XPluginImpl implements Plugin {
+
     @Override
-    public void start(AopContext context) throws Throwable {
-        //
+    public void start(AopContext context) {
         // 此插件的 solon.plugin.priority 会大于 mybatis-solon-plugin 的值
-        //
         MybatisAdapterManager.setAdapterFactory(new MybatisAdapterFactoryFlex());
     }
 
diff --git a/mybatis-flex-solon-plugin/src/main/java/com/mybatisflex/solon/integration/package-info.java b/mybatis-flex-solon-plugin/src/main/java/com/mybatisflex/solon/integration/package-info.java
new file mode 100644
index 00000000..2ca188b6
--- /dev/null
+++ b/mybatis-flex-solon-plugin/src/main/java/com/mybatisflex/solon/integration/package-info.java
@@ -0,0 +1,20 @@
+/*
+ *  Copyright (c) 2022-2023, Mybatis-Flex (fuhai999@gmail.com).
+ *  <p>
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *  <p>
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *  <p>
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+
+/**
+ * MyBatis-Flex Solon 支持。
+ */
+package com.mybatisflex.solon.integration;
\ No newline at end of file
diff --git a/mybatis-flex-solon-plugin/src/main/java/com/mybatisflex/solon/service/impl/ServiceImpl.java b/mybatis-flex-solon-plugin/src/main/java/com/mybatisflex/solon/service/impl/ServiceImpl.java
index 0e91f0d6..80ef2adc 100644
--- a/mybatis-flex-solon-plugin/src/main/java/com/mybatisflex/solon/service/impl/ServiceImpl.java
+++ b/mybatis-flex-solon-plugin/src/main/java/com/mybatisflex/solon/service/impl/ServiceImpl.java
@@ -1,17 +1,17 @@
-/**
- * Copyright (c) 2022-2023, Mybatis-Flex (fuhai999@gmail.com).
- * <p>
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- * <p>
- * http://www.apache.org/licenses/LICENSE-2.0
- * <p>
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+/*
+ *  Copyright (c) 2022-2023, Mybatis-Flex (fuhai999@gmail.com).
+ *  <p>
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *  <p>
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *  <p>
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
  */
 package com.mybatisflex.solon.service.impl;
 
@@ -19,6 +19,12 @@ import com.mybatisflex.core.BaseMapper;
 import com.mybatisflex.core.service.IService;
 import org.noear.solon.annotation.Inject;
 
+/**
+ * 默认 {@link IService} 实现类。
+ *
+ * @param <M> Mapper 类型
+ * @param <T> Entity 类型
+ */
 public class ServiceImpl<M extends BaseMapper<T>, T> implements IService<T> {
 
     @Inject
diff --git a/mybatis-flex-solon-plugin/src/main/java/com/mybatisflex/solon/service/impl/package-info.java b/mybatis-flex-solon-plugin/src/main/java/com/mybatisflex/solon/service/impl/package-info.java
new file mode 100644
index 00000000..8f8d1d06
--- /dev/null
+++ b/mybatis-flex-solon-plugin/src/main/java/com/mybatisflex/solon/service/impl/package-info.java
@@ -0,0 +1,20 @@
+/*
+ *  Copyright (c) 2022-2023, Mybatis-Flex (fuhai999@gmail.com).
+ *  <p>
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *  <p>
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *  <p>
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+
+/**
+ * IService 实现。
+ */
+package com.mybatisflex.solon.service.impl;
\ No newline at end of file
diff --git a/mybatis-flex-spring-boot-starter/src/main/java/com/mybatisflex/spring/boot/ConditionalOnMybatisFlexDatasource.java b/mybatis-flex-spring-boot-starter/src/main/java/com/mybatisflex/spring/boot/ConditionalOnMybatisFlexDatasource.java
index 604fcb4a..125cdf29 100644
--- a/mybatis-flex-spring-boot-starter/src/main/java/com/mybatisflex/spring/boot/ConditionalOnMybatisFlexDatasource.java
+++ b/mybatis-flex-spring-boot-starter/src/main/java/com/mybatisflex/spring/boot/ConditionalOnMybatisFlexDatasource.java
@@ -30,7 +30,11 @@ import java.lang.annotation.RetentionPolicy;
 import java.lang.annotation.Target;
 import java.util.Iterator;
 
-
+/**
+ * <p>判断是否有 MyBatis-Flex 的多数据源配置。
+ *
+ * <p>如果配置文件中有 MyBatis-Flex 的多数据源配置，就加载 MyBatis-Flex 多数据源自动配置类。
+ */
 @Target({ElementType.TYPE, ElementType.METHOD})
 @Retention(RetentionPolicy.RUNTIME)
 @Conditional(ConditionalOnMybatisFlexDatasource.OnMybatisFlexDataSourceCondition.class)
diff --git a/mybatis-flex-spring-boot-starter/src/main/java/com/mybatisflex/spring/boot/ConfigurationCustomizer.java b/mybatis-flex-spring-boot-starter/src/main/java/com/mybatisflex/spring/boot/ConfigurationCustomizer.java
index c028c1d0..4a78c674 100644
--- a/mybatis-flex-spring-boot-starter/src/main/java/com/mybatisflex/spring/boot/ConfigurationCustomizer.java
+++ b/mybatis-flex-spring-boot-starter/src/main/java/com/mybatisflex/spring/boot/ConfigurationCustomizer.java
@@ -1,28 +1,33 @@
-/**
- * Copyright (c) 2022-2023, Mybatis-Flex (fuhai999@gmail.com).
- * <p>
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- * <p>
- * http://www.apache.org/licenses/LICENSE-2.0
- * <p>
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+/*
+ *  Copyright (c) 2022-2023, Mybatis-Flex (fuhai999@gmail.com).
+ *  <p>
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *  <p>
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *  <p>
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
  */
 package com.mybatisflex.spring.boot;
 
 import com.mybatisflex.core.mybatis.FlexConfiguration;
 
 /**
- * 为 FlexConfiguration 做自定义的配置支持 {@link FlexConfiguration}
+ * 为 {@link FlexConfiguration} 做自定义的配置支持。
  */
 @FunctionalInterface
 public interface ConfigurationCustomizer {
 
-  void customize(FlexConfiguration configuration);
+    /**
+     * 自定义配置 {@link FlexConfiguration}。
+     *
+     * @param configuration MyBatis Flex Configuration
+     */
+    void customize(FlexConfiguration configuration);
 
 }
diff --git a/mybatis-flex-spring-boot-starter/src/main/java/com/mybatisflex/spring/boot/FlexTransactionAutoConfiguration.java b/mybatis-flex-spring-boot-starter/src/main/java/com/mybatisflex/spring/boot/FlexTransactionAutoConfiguration.java
index 22a983cb..fe73bf39 100644
--- a/mybatis-flex-spring-boot-starter/src/main/java/com/mybatisflex/spring/boot/FlexTransactionAutoConfiguration.java
+++ b/mybatis-flex-spring-boot-starter/src/main/java/com/mybatisflex/spring/boot/FlexTransactionAutoConfiguration.java
@@ -1,17 +1,17 @@
-/**
- * Copyright (c) 2022-2023, Mybatis-Flex (fuhai999@gmail.com).
- * <p>
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- * <p>
- * http://www.apache.org/licenses/LICENSE-2.0
- * <p>
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+/*
+ *  Copyright (c) 2022-2023, Mybatis-Flex (fuhai999@gmail.com).
+ *  <p>
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *  <p>
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *  <p>
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
  */
 package com.mybatisflex.spring.boot;
 
@@ -26,16 +26,27 @@ import org.springframework.context.annotation.Configuration;
 import org.springframework.transaction.PlatformTransactionManager;
 import org.springframework.transaction.annotation.TransactionManagementConfigurer;
 
+/**
+ * MyBatis-Flex 事务自动配置。
+ */
 @ConditionalOnClass(Db.class)
 @Configuration(proxyBeanMethods = false)
 @AutoConfigureAfter({MybatisFlexAutoConfiguration.class})
 @AutoConfigureBefore({TransactionAutoConfiguration.class})
 public class FlexTransactionAutoConfiguration implements TransactionManagementConfigurer {
 
+    /**
+     * 这里使用 final 修饰属性是因为：<br>
+     * <p>
+     * 1、调用 {@link #annotationDrivenTransactionManager} 方法会返回 TransactionManager 对象<br>
+     * 2、{@code @Bean} 注入又会返回 TransactionManager 对象<br>
+     * <p>
+     * 需要保证两个对象的一致性。
+     */
     private final FlexTransactionManager flexTransactionManager = new FlexTransactionManager();
 
-    @Override
     @Bean
+    @Override
     public PlatformTransactionManager annotationDrivenTransactionManager() {
         return flexTransactionManager;
     }
diff --git a/mybatis-flex-spring-boot-starter/src/main/java/com/mybatisflex/spring/boot/MultiDataSourceAutoConfiguration.java b/mybatis-flex-spring-boot-starter/src/main/java/com/mybatisflex/spring/boot/MultiDataSourceAutoConfiguration.java
index 51ca2625..1ff89fba 100644
--- a/mybatis-flex-spring-boot-starter/src/main/java/com/mybatisflex/spring/boot/MultiDataSourceAutoConfiguration.java
+++ b/mybatis-flex-spring-boot-starter/src/main/java/com/mybatisflex/spring/boot/MultiDataSourceAutoConfiguration.java
@@ -34,7 +34,7 @@ import java.util.Map;
 
 
 /**
- * 多数据源的配置支持
+ * MyBatis-Flex 多数据源的配置支持。
  */
 @ConditionalOnMybatisFlexDatasource()
 @Configuration(proxyBeanMethods = false)
@@ -50,7 +50,6 @@ public class MultiDataSourceAutoConfiguration {
         dataSourceProperties = properties.getDatasource();
     }
 
-
     @Bean
     @ConditionalOnMissingBean
     public DataSource dataSource() {
@@ -71,6 +70,9 @@ public class MultiDataSourceAutoConfiguration {
         return flexDataSource;
     }
 
+    /**
+     * {@link com.mybatisflex.annotation.UseDataSource} 注解切换数据源切面。
+     */
     @Bean
     @ConditionalOnMissingBean
     public DataSourceAdvice dataSourceAdvice() {
diff --git a/mybatis-flex-spring-boot-starter/src/main/java/com/mybatisflex/spring/boot/MybatisLanguageDriverAutoConfiguration.java b/mybatis-flex-spring-boot-starter/src/main/java/com/mybatisflex/spring/boot/MybatisLanguageDriverAutoConfiguration.java
index 72f17369..4453c82e 100644
--- a/mybatis-flex-spring-boot-starter/src/main/java/com/mybatisflex/spring/boot/MybatisLanguageDriverAutoConfiguration.java
+++ b/mybatis-flex-spring-boot-starter/src/main/java/com/mybatisflex/spring/boot/MybatisLanguageDriverAutoConfiguration.java
@@ -1,17 +1,17 @@
-/**
- * Copyright (c) 2022-2023, Mybatis-Flex (fuhai999@gmail.com).
- * <p>
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- * <p>
- * http://www.apache.org/licenses/LICENSE-2.0
- * <p>
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+/*
+ *  Copyright (c) 2022-2023, Mybatis-Flex (fuhai999@gmail.com).
+ *  <p>
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *  <p>
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *  <p>
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
  */
 package com.mybatisflex.spring.boot;
 
@@ -30,117 +30,117 @@ import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 
 /**
- * 脚本语言驱动的自动配置，平常一般项目用不到，只为了同步 mybatis 自带的 MybatisLanguageDriverAutoConfiguration
+ * 脚本语言驱动的自动配置，平常一般项目用不到，只为了同步 MyBatis 自带的 MybatisLanguageDriverAutoConfiguration。
  */
 @Configuration(proxyBeanMethods = false)
 @ConditionalOnClass(LanguageDriver.class)
 public class MybatisLanguageDriverAutoConfiguration {
 
-  private static final String CONFIGURATION_PROPERTY_PREFIX = "mybatis-flex.scripting-language-driver";
+    private static final String CONFIGURATION_PROPERTY_PREFIX = "mybatis-flex.scripting-language-driver";
 
-  /**
-   * Configuration class for mybatis-freemarker 1.1.x or under.
-   */
-  @Configuration(proxyBeanMethods = false)
-  @ConditionalOnClass(FreeMarkerLanguageDriver.class)
-  @ConditionalOnMissingClass("org.mybatis.scripting.freemarker.FreeMarkerLanguageDriverConfig")
-  public static class LegacyFreeMarkerConfiguration {
-    @Bean
-    @ConditionalOnMissingBean
-    FreeMarkerLanguageDriver freeMarkerLanguageDriver() {
-      return new FreeMarkerLanguageDriver();
-    }
-  }
-
-  /**
-   * Configuration class for mybatis-freemarker 1.2.x or above.
-   */
-  @Configuration(proxyBeanMethods = false)
-  @ConditionalOnClass({ FreeMarkerLanguageDriver.class, FreeMarkerLanguageDriverConfig.class })
-  public static class FreeMarkerConfiguration {
-    @Bean
-    @ConditionalOnMissingBean
-    FreeMarkerLanguageDriver freeMarkerLanguageDriver(FreeMarkerLanguageDriverConfig config) {
-      return new FreeMarkerLanguageDriver(config);
+    /**
+     * Configuration class for mybatis-freemarker 1.1.x or under.
+     */
+    @Configuration(proxyBeanMethods = false)
+    @ConditionalOnClass(FreeMarkerLanguageDriver.class)
+    @ConditionalOnMissingClass("org.mybatis.scripting.freemarker.FreeMarkerLanguageDriverConfig")
+    public static class LegacyFreeMarkerConfiguration {
+        @Bean
+        @ConditionalOnMissingBean
+        FreeMarkerLanguageDriver freeMarkerLanguageDriver() {
+            return new FreeMarkerLanguageDriver();
+        }
     }
 
-    @Bean
-    @ConditionalOnMissingBean
-    @ConfigurationProperties(CONFIGURATION_PROPERTY_PREFIX + ".freemarker")
-    public FreeMarkerLanguageDriverConfig freeMarkerLanguageDriverConfig() {
-      return FreeMarkerLanguageDriverConfig.newInstance();
-    }
-  }
+    /**
+     * Configuration class for mybatis-freemarker 1.2.x or above.
+     */
+    @Configuration(proxyBeanMethods = false)
+    @ConditionalOnClass({FreeMarkerLanguageDriver.class, FreeMarkerLanguageDriverConfig.class})
+    public static class FreeMarkerConfiguration {
+        @Bean
+        @ConditionalOnMissingBean
+        FreeMarkerLanguageDriver freeMarkerLanguageDriver(FreeMarkerLanguageDriverConfig config) {
+            return new FreeMarkerLanguageDriver(config);
+        }
 
-  /**
-   * Configuration class for mybatis-velocity 2.0 or under.
-   */
-  @Configuration(proxyBeanMethods = false)
-  @ConditionalOnClass(org.mybatis.scripting.velocity.Driver.class)
-  @ConditionalOnMissingClass("org.mybatis.scripting.velocity.VelocityLanguageDriverConfig")
-  @SuppressWarnings("deprecation")
-  public static class LegacyVelocityConfiguration {
-    @Bean
-    @ConditionalOnMissingBean
-    org.mybatis.scripting.velocity.Driver velocityLanguageDriver() {
-      return new org.mybatis.scripting.velocity.Driver();
-    }
-  }
-
-  /**
-   * Configuration class for mybatis-velocity 2.1.x or above.
-   */
-  @Configuration(proxyBeanMethods = false)
-  @ConditionalOnClass({ VelocityLanguageDriver.class, VelocityLanguageDriverConfig.class })
-  public static class VelocityConfiguration {
-    @Bean
-    @ConditionalOnMissingBean
-    VelocityLanguageDriver velocityLanguageDriver(VelocityLanguageDriverConfig config) {
-      return new VelocityLanguageDriver(config);
+        @Bean
+        @ConditionalOnMissingBean
+        @ConfigurationProperties(CONFIGURATION_PROPERTY_PREFIX + ".freemarker")
+        public FreeMarkerLanguageDriverConfig freeMarkerLanguageDriverConfig() {
+            return FreeMarkerLanguageDriverConfig.newInstance();
+        }
     }
 
-    @Bean
-    @ConditionalOnMissingBean
-    @ConfigurationProperties(CONFIGURATION_PROPERTY_PREFIX + ".velocity")
-    public VelocityLanguageDriverConfig velocityLanguageDriverConfig() {
-      return VelocityLanguageDriverConfig.newInstance();
-    }
-  }
-
-  @Configuration(proxyBeanMethods = false)
-  @ConditionalOnClass(ThymeleafLanguageDriver.class)
-  public static class ThymeleafConfiguration {
-    @Bean
-    @ConditionalOnMissingBean
-    ThymeleafLanguageDriver thymeleafLanguageDriver(ThymeleafLanguageDriverConfig config) {
-      return new ThymeleafLanguageDriver(config);
+    /**
+     * Configuration class for mybatis-velocity 2.0 or under.
+     */
+    @Configuration(proxyBeanMethods = false)
+    @ConditionalOnClass(org.mybatis.scripting.velocity.Driver.class)
+    @ConditionalOnMissingClass("org.mybatis.scripting.velocity.VelocityLanguageDriverConfig")
+    @SuppressWarnings("deprecation")
+    public static class LegacyVelocityConfiguration {
+        @Bean
+        @ConditionalOnMissingBean
+        org.mybatis.scripting.velocity.Driver velocityLanguageDriver() {
+            return new org.mybatis.scripting.velocity.Driver();
+        }
     }
 
-    @Bean
-    @ConditionalOnMissingBean
-    @ConfigurationProperties(CONFIGURATION_PROPERTY_PREFIX + ".thymeleaf")
-    public ThymeleafLanguageDriverConfig thymeleafLanguageDriverConfig() {
-      return ThymeleafLanguageDriverConfig.newInstance();
+    /**
+     * Configuration class for mybatis-velocity 2.1.x or above.
+     */
+    @Configuration(proxyBeanMethods = false)
+    @ConditionalOnClass({VelocityLanguageDriver.class, VelocityLanguageDriverConfig.class})
+    public static class VelocityConfiguration {
+        @Bean
+        @ConditionalOnMissingBean
+        VelocityLanguageDriver velocityLanguageDriver(VelocityLanguageDriverConfig config) {
+            return new VelocityLanguageDriver(config);
+        }
+
+        @Bean
+        @ConditionalOnMissingBean
+        @ConfigurationProperties(CONFIGURATION_PROPERTY_PREFIX + ".velocity")
+        public VelocityLanguageDriverConfig velocityLanguageDriverConfig() {
+            return VelocityLanguageDriverConfig.newInstance();
+        }
     }
 
-    // This class provides to avoid the https://github.com/spring-projects/spring-boot/issues/21626 as workaround.
-    @SuppressWarnings("unused")
-    private static class MetadataThymeleafLanguageDriverConfig extends ThymeleafLanguageDriverConfig {
+    @Configuration(proxyBeanMethods = false)
+    @ConditionalOnClass(ThymeleafLanguageDriver.class)
+    public static class ThymeleafConfiguration {
+        @Bean
+        @ConditionalOnMissingBean
+        ThymeleafLanguageDriver thymeleafLanguageDriver(ThymeleafLanguageDriverConfig config) {
+            return new ThymeleafLanguageDriver(config);
+        }
 
-      @ConfigurationProperties(CONFIGURATION_PROPERTY_PREFIX + ".thymeleaf.dialect")
-      @Override
-      public DialectConfig getDialect() {
-        return super.getDialect();
-      }
+        @Bean
+        @ConditionalOnMissingBean
+        @ConfigurationProperties(CONFIGURATION_PROPERTY_PREFIX + ".thymeleaf")
+        public ThymeleafLanguageDriverConfig thymeleafLanguageDriverConfig() {
+            return ThymeleafLanguageDriverConfig.newInstance();
+        }
 
-      @ConfigurationProperties(CONFIGURATION_PROPERTY_PREFIX + ".thymeleaf.template-file")
-      @Override
-      public TemplateFileConfig getTemplateFile() {
-        return super.getTemplateFile();
-      }
+        // This class provides to avoid the https://github.com/spring-projects/spring-boot/issues/21626 as workaround.
+        @SuppressWarnings("unused")
+        private static class MetadataThymeleafLanguageDriverConfig extends ThymeleafLanguageDriverConfig {
+
+            @ConfigurationProperties(CONFIGURATION_PROPERTY_PREFIX + ".thymeleaf.dialect")
+            @Override
+            public DialectConfig getDialect() {
+                return super.getDialect();
+            }
+
+            @ConfigurationProperties(CONFIGURATION_PROPERTY_PREFIX + ".thymeleaf.template-file")
+            @Override
+            public TemplateFileConfig getTemplateFile() {
+                return super.getTemplateFile();
+            }
+
+        }
 
     }
 
-  }
-
 }
diff --git a/mybatis-flex-spring-boot-starter/src/main/java/com/mybatisflex/spring/boot/SpringBootVFS.java b/mybatis-flex-spring-boot-starter/src/main/java/com/mybatisflex/spring/boot/SpringBootVFS.java
index 067954bf..a6d81953 100644
--- a/mybatis-flex-spring-boot-starter/src/main/java/com/mybatisflex/spring/boot/SpringBootVFS.java
+++ b/mybatis-flex-spring-boot-starter/src/main/java/com/mybatisflex/spring/boot/SpringBootVFS.java
@@ -1,17 +1,17 @@
-/**
- * Copyright (c) 2022-2023, Mybatis-Flex (fuhai999@gmail.com).
- * <p>
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- * <p>
- * http://www.apache.org/licenses/LICENSE-2.0
- * <p>
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+/*
+ *  Copyright (c) 2022-2023, Mybatis-Flex (fuhai999@gmail.com).
+ *  <p>
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *  <p>
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *  <p>
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
  */
 package com.mybatisflex.spring.boot;
 
@@ -31,59 +31,58 @@ import java.util.stream.Collectors;
 import java.util.stream.Stream;
 
 /**
- * Mybatis 的 VFS 支持
+ * MyBatis 的 VFS 支持。
  */
 public class SpringBootVFS extends VFS {
 
-  private static Charset urlDecodingCharset;
-  private final ResourcePatternResolver resourceResolver;
+    private static Charset urlDecodingCharset;
 
-  static {
-    setUrlDecodingCharset(Charset.defaultCharset());
-  }
-
-  public SpringBootVFS() {
-    this.resourceResolver = new PathMatchingResourcePatternResolver(getClass().getClassLoader());
-  }
-
-  @Override
-  public boolean isValid() {
-    return true;
-  }
-
-  @Override
-  protected List<String> list(URL url, String path) throws IOException {
-    String urlString = URLDecoder.decode(url.toString(), urlDecodingCharset.name());
-    String baseUrlString = urlString.endsWith("/") ? urlString : urlString.concat("/");
-    Resource[] resources = resourceResolver.getResources(baseUrlString + "**/*.class");
-    return Stream.of(resources).map(resource -> preserveSubpackageName(baseUrlString, resource, path))
-        .collect(Collectors.toList());
-  }
-
-  /**
-   * Set the charset for decoding an encoded URL string.
-   * <p>
-   * Default is system default charset.
-   * </p>
-   *
-   * @param charset
-   *          the charset for decoding an encoded URL string
-   *
-   * @since 2.3.0
-   */
-  public static void setUrlDecodingCharset(Charset charset) {
-    urlDecodingCharset = charset;
-  }
-
-  private static String preserveSubpackageName(final String baseUrlString, final Resource resource,
-      final String rootPath) {
-    try {
-      return rootPath + (rootPath.endsWith("/") ? "" : "/") + Normalizer
-          .normalize(URLDecoder.decode(resource.getURL().toString(), urlDecodingCharset.name()), Normalizer.Form.NFC)
-          .substring(baseUrlString.length());
-    } catch (IOException e) {
-      throw new UncheckedIOException(e);
+    static {
+        setUrlDecodingCharset(Charset.defaultCharset());
+    }
+
+    private final ResourcePatternResolver resourceResolver;
+
+    public SpringBootVFS() {
+        this.resourceResolver = new PathMatchingResourcePatternResolver(getClass().getClassLoader());
+    }
+
+    /**
+     * Set the charset for decoding an encoded URL string.
+     * <p>
+     * Default is system default charset.
+     * </p>
+     *
+     * @param charset the charset for decoding an encoded URL string
+     * @since 2.3.0
+     */
+    public static void setUrlDecodingCharset(Charset charset) {
+        urlDecodingCharset = charset;
+    }
+
+    private static String preserveSubpackageName(final String baseUrlString, final Resource resource,
+                                                 final String rootPath) {
+        try {
+            return rootPath + (rootPath.endsWith("/") ? "" : "/") + Normalizer
+                    .normalize(URLDecoder.decode(resource.getURL().toString(), urlDecodingCharset.name()), Normalizer.Form.NFC)
+                    .substring(baseUrlString.length());
+        } catch (IOException e) {
+            throw new UncheckedIOException(e);
+        }
+    }
+
+    @Override
+    public boolean isValid() {
+        return true;
+    }
+
+    @Override
+    protected List<String> list(URL url, String path) throws IOException {
+        String urlString = URLDecoder.decode(url.toString(), urlDecodingCharset.name());
+        String baseUrlString = urlString.endsWith("/") ? urlString : urlString.concat("/");
+        Resource[] resources = resourceResolver.getResources(baseUrlString + "**/*.class");
+        return Stream.of(resources).map(resource -> preserveSubpackageName(baseUrlString, resource, path))
+                .collect(Collectors.toList());
     }
-  }
 
 }
diff --git a/mybatis-flex-spring-boot-starter/src/main/java/com/mybatisflex/spring/boot/SqlSessionFactoryBeanCustomizer.java b/mybatis-flex-spring-boot-starter/src/main/java/com/mybatisflex/spring/boot/SqlSessionFactoryBeanCustomizer.java
index da6202d7..3aacfb91 100644
--- a/mybatis-flex-spring-boot-starter/src/main/java/com/mybatisflex/spring/boot/SqlSessionFactoryBeanCustomizer.java
+++ b/mybatis-flex-spring-boot-starter/src/main/java/com/mybatisflex/spring/boot/SqlSessionFactoryBeanCustomizer.java
@@ -1,29 +1,35 @@
-/**
- * Copyright (c) 2022-2023, Mybatis-Flex (fuhai999@gmail.com).
- * <p>
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- * <p>
- * http://www.apache.org/licenses/LICENSE-2.0
- * <p>
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+/*
+ *  Copyright (c) 2022-2023, Mybatis-Flex (fuhai999@gmail.com).
+ *  <p>
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *  <p>
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *  <p>
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
  */
 package com.mybatisflex.spring.boot;
 
 import org.mybatis.spring.SqlSessionFactoryBean;
 
 /**
- * 为 FlexSqlSessionFactoryBean 做自定义的配置支持
+ * 为 FlexSqlSessionFactoryBean 做自定义的配置支持。
+ *
  * @see com.mybatisflex.spring.FlexSqlSessionFactoryBean
  */
 @FunctionalInterface
 public interface SqlSessionFactoryBeanCustomizer {
 
-  void customize(SqlSessionFactoryBean factoryBean);
+    /**
+     * 自定义 {@link SqlSessionFactoryBean}。
+     *
+     * @param factoryBean FlexSqlSessionFactoryBean
+     */
+    void customize(SqlSessionFactoryBean factoryBean);
 
 }
diff --git a/mybatis-flex-spring-boot-starter/src/main/java/com/mybatisflex/spring/boot/package-info.java b/mybatis-flex-spring-boot-starter/src/main/java/com/mybatisflex/spring/boot/package-info.java
index b90c4ad2..b80209dc 100644
--- a/mybatis-flex-spring-boot-starter/src/main/java/com/mybatisflex/spring/boot/package-info.java
+++ b/mybatis-flex-spring-boot-starter/src/main/java/com/mybatisflex/spring/boot/package-info.java
@@ -1,16 +1,20 @@
-/**
- * Copyright (c) 2022-2023, Mybatis-Flex (fuhai999@gmail.com).
- * <p>
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- * <p>
- * http://www.apache.org/licenses/LICENSE-2.0
- * <p>
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+/*
+ *  Copyright (c) 2022-2023, Mybatis-Flex (fuhai999@gmail.com).
+ *  <p>
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *  <p>
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *  <p>
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
  */
-package com.mybatisflex.spring.boot;
+
+/**
+ * MyBatis-Flex Spring Boot 支持。
+ */
+package com.mybatisflex.spring.boot;
\ No newline at end of file
diff --git a/mybatis-flex-spring/src/main/java/com/mybatisflex/spring/FlexSqlSessionFactoryBean.java b/mybatis-flex-spring/src/main/java/com/mybatisflex/spring/FlexSqlSessionFactoryBean.java
index 48e7697e..35bae23c 100644
--- a/mybatis-flex-spring/src/main/java/com/mybatisflex/spring/FlexSqlSessionFactoryBean.java
+++ b/mybatis-flex-spring/src/main/java/com/mybatisflex/spring/FlexSqlSessionFactoryBean.java
@@ -1,17 +1,17 @@
-/**
- * Copyright (c) 2022-2023, Mybatis-Flex (fuhai999@gmail.com).
- * <p>
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- * <p>
- * http://www.apache.org/licenses/LICENSE-2.0
- * <p>
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+/*
+ *  Copyright (c) 2022-2023, Mybatis-Flex (fuhai999@gmail.com).
+ *  <p>
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *  <p>
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *  <p>
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
  */
 package com.mybatisflex.spring;
 
@@ -73,9 +73,11 @@ import static org.springframework.util.StringUtils.hasLength;
 import static org.springframework.util.StringUtils.tokenizeToStringArray;
 
 /**
- * spring 在定义 SqlSessionFactoryBean 的时候，需要替换为 FlexSqlSessionFactoryBean
- * 源于 {@link SqlSessionFactoryBean}，主要是用于构建 {@link com.mybatisflex.core.mybatis.FlexConfiguration }，而不是使用原生的 Configuration
- * 此代码主要是用于修改 {@link FlexSqlSessionFactoryBean#buildSqlSessionFactory()} 部分
+ * <p>Spring 在定义 SqlSessionFactoryBean 的时候，需要替换为 FlexSqlSessionFactoryBean。
+ *
+ * <p>源于 {@link SqlSessionFactoryBean}，主要是用于构建 {@link com.mybatisflex.core.mybatis.FlexConfiguration }，而不是使用原生的 {@link Configuration}。
+ *
+ * <p>此代码主要是用于修改 {@link FlexSqlSessionFactoryBean#buildSqlSessionFactory()} 部分。
  */
 public class FlexSqlSessionFactoryBean extends SqlSessionFactoryBean
         implements FactoryBean<SqlSessionFactory>, InitializingBean, ApplicationListener<ApplicationEvent> {
diff --git a/mybatis-flex-spring/src/main/java/com/mybatisflex/spring/FlexTransactionManager.java b/mybatis-flex-spring/src/main/java/com/mybatisflex/spring/FlexTransactionManager.java
index 96e1b7fa..944da5a6 100644
--- a/mybatis-flex-spring/src/main/java/com/mybatisflex/spring/FlexTransactionManager.java
+++ b/mybatis-flex-spring/src/main/java/com/mybatisflex/spring/FlexTransactionManager.java
@@ -1,17 +1,17 @@
-/**
- * Copyright (c) 2022-2023, Mybatis-Flex (fuhai999@gmail.com).
- * <p>
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- * <p>
- * http://www.apache.org/licenses/LICENSE-2.0
- * <p>
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+/*
+ *  Copyright (c) 2022-2023, Mybatis-Flex (fuhai999@gmail.com).
+ *  <p>
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *  <p>
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *  <p>
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
  */
 package com.mybatisflex.spring;
 
@@ -23,6 +23,9 @@ import org.springframework.transaction.TransactionException;
 import org.springframework.transaction.support.AbstractPlatformTransactionManager;
 import org.springframework.transaction.support.DefaultTransactionStatus;
 
+/**
+ * MyBatis-Flex 事务支持。
+ */
 public class FlexTransactionManager extends AbstractPlatformTransactionManager {
 
     @Override
diff --git a/mybatis-flex-spring/src/main/java/com/mybatisflex/spring/datasource/DataSourceInterceptor.java b/mybatis-flex-spring/src/main/java/com/mybatisflex/spring/datasource/DataSourceInterceptor.java
index ae4b7412..e0cc7894 100644
--- a/mybatis-flex-spring/src/main/java/com/mybatisflex/spring/datasource/DataSourceInterceptor.java
+++ b/mybatis-flex-spring/src/main/java/com/mybatisflex/spring/datasource/DataSourceInterceptor.java
@@ -36,6 +36,11 @@ import java.util.concurrent.ConcurrentHashMap;
  */
 public class DataSourceInterceptor implements MethodInterceptor {
 
+    /**
+     * 缓存方法对应的数据源。
+     */
+    private final Map<Object, String> dsCache = new ConcurrentHashMap<>();
+
     @Override
     public Object invoke(MethodInvocation invocation) throws Throwable {
 
@@ -57,11 +62,6 @@ public class DataSourceInterceptor implements MethodInterceptor {
         }
     }
 
-    /**
-     * 缓存方法对应的数据源。
-     */
-    private final Map<Object, String> dsCache = new ConcurrentHashMap<>();
-
     private String findDataSourceKey(Method method, Class<?> targetClass) {
         Object cacheKey = new MethodClassKey(method, targetClass);
         String dsKey = this.dsCache.get(cacheKey);
diff --git a/mybatis-flex-spring/src/main/java/com/mybatisflex/spring/datasource/package-info.java b/mybatis-flex-spring/src/main/java/com/mybatisflex/spring/datasource/package-info.java
new file mode 100644
index 00000000..b3bd6ffe
--- /dev/null
+++ b/mybatis-flex-spring/src/main/java/com/mybatisflex/spring/datasource/package-info.java
@@ -0,0 +1,20 @@
+/*
+ *  Copyright (c) 2022-2023, Mybatis-Flex (fuhai999@gmail.com).
+ *  <p>
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *  <p>
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *  <p>
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+
+/**
+ * 多数据源切面。
+ */
+package com.mybatisflex.spring.datasource;
\ No newline at end of file
diff --git a/mybatis-flex-spring/src/main/java/com/mybatisflex/spring/package-info.java b/mybatis-flex-spring/src/main/java/com/mybatisflex/spring/package-info.java
new file mode 100644
index 00000000..97288aea
--- /dev/null
+++ b/mybatis-flex-spring/src/main/java/com/mybatisflex/spring/package-info.java
@@ -0,0 +1,20 @@
+/*
+ *  Copyright (c) 2022-2023, Mybatis-Flex (fuhai999@gmail.com).
+ *  <p>
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *  <p>
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *  <p>
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+
+/**
+ * MyBatis-Flex Spring 支持。
+ */
+package com.mybatisflex.spring;
\ No newline at end of file
diff --git a/mybatis-flex-spring/src/main/java/com/mybatisflex/spring/service/impl/package-info.java b/mybatis-flex-spring/src/main/java/com/mybatisflex/spring/service/impl/package-info.java
new file mode 100644
index 00000000..555bce31
--- /dev/null
+++ b/mybatis-flex-spring/src/main/java/com/mybatisflex/spring/service/impl/package-info.java
@@ -0,0 +1,20 @@
+/*
+ *  Copyright (c) 2022-2023, Mybatis-Flex (fuhai999@gmail.com).
+ *  <p>
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *  <p>
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *  <p>
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+
+/**
+ * IService 实现。
+ */
+package com.mybatisflex.spring.service.impl;
\ No newline at end of file