first commit.

plusone-basic/plusone-basic-infrastructure/src/main/java/xyz/zhouxy/plusone/mybatis/MyBatisAutoConfiguration.java

@@ -0,0 +1,17 @@
+package xyz.zhouxy.plusone.mybatis;
+
+import org.apache.ibatis.session.SqlSessionFactory;
+import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+
+@Configuration
+@EnableAutoConfiguration
+public class MyBatisAutoConfiguration {
+
+    @Bean
+    MybatisUtil mybatisUtil(SqlSessionFactory sqlSessionFactory) {
+        return MybatisUtil.getInstance()
+                .setSqlSessionFactory(sqlSessionFactory);
+    }
+}

plusone-basic/plusone-basic-infrastructure/src/main/java/xyz/zhouxy/plusone/mybatis/MyBatisPlusConfig.java

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+package xyz.zhouxy.plusone.mybatis;
+
+import com.baomidou.mybatisplus.extension.plugins.MybatisPlusInterceptor;
+import com.baomidou.mybatisplus.extension.plugins.inner.BlockAttackInnerInterceptor;
+import com.baomidou.mybatisplus.extension.plugins.inner.OptimisticLockerInnerInterceptor;
+
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+
+@Configuration
+public class MyBatisPlusConfig {
+    @Bean
+    public MybatisPlusInterceptor mybatisPlusInterceptor() {
+        MybatisPlusInterceptor interceptor = new MybatisPlusInterceptor();
+        interceptor.addInnerInterceptor(new BlockAttackInnerInterceptor());
+        interceptor.addInnerInterceptor(new OptimisticLockerInnerInterceptor());
+        return interceptor;
+    }
+}

plusone-basic/plusone-basic-infrastructure/src/main/java/xyz/zhouxy/plusone/mybatis/MybatisUtil.java

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+package xyz.zhouxy.plusone.mybatis;
+
+import org.apache.ibatis.session.SqlSessionFactory;
+
+public final class MybatisUtil {
+
+    private SqlSessionFactory sqlSessionFactory;
+
+    private MybatisUtil() {
+    }
+
+    MybatisUtil setSqlSessionFactory(SqlSessionFactory sqlSessionFactory) {
+        this.sqlSessionFactory = sqlSessionFactory;
+        return this;
+    }
+
+    private static final class Holder {
+        private static final MybatisUtil INSTANCE = new MybatisUtil();
+    }
+
+    public static MybatisUtil getInstance() {
+        return Holder.INSTANCE;
+    }
+
+    public static SqlSessionFactory getSqlSessionFactory() {
+        return MybatisUtil.getInstance().sqlSessionFactory;
+    }
+}