diff --git a/README.md b/README.md
index 7ab1dcc..7d32bf5 100644
--- a/README.md
+++ b/README.md
@@ -33,6 +33,8 @@ QQ 群<br>
 #### c. 『 基础 – 数据存储篇 』
 - springboot-mybatis <br>
  [《Springboot 整合 Mybatis 的完整 Web 案例》](http://www.bysocket.com/?p=1610 "Springboot 整合 Mybatis 的完整 Web 案例")<br>
+- springboot-mybatis-annotation <br>
+ [《Spring Boot 整合 Mybatis Annotation 注解的完整 Web 案例》](http://www.bysocket.com/?p=1610 "Springboot 整合 Mybatis 的完整 Web 案例")<br>
 - springboot-mybatis-mutil-datasource <br>
  [《Spring Boot 整合 Mybatis 实现 Druid 多数据源详解》](http://www.bysocket.com/?p=1712 "Spring Boot 整合 Mybatis 实现 Druid 多数据源详解")<br>
 
diff --git a/springboot-mybatis-annotation/.mvn/wrapper/maven-wrapper.jar b/springboot-mybatis-annotation/.mvn/wrapper/maven-wrapper.jar
deleted file mode 100644
index 9cc84ea..0000000
Binary files a/springboot-mybatis-annotation/.mvn/wrapper/maven-wrapper.jar and /dev/null differ
diff --git a/springboot-mybatis-annotation/.mvn/wrapper/maven-wrapper.properties b/springboot-mybatis-annotation/.mvn/wrapper/maven-wrapper.properties
deleted file mode 100644
index c315043..0000000
--- a/springboot-mybatis-annotation/.mvn/wrapper/maven-wrapper.properties
+++ /dev/null
@@ -1 +0,0 @@
-distributionUrl=https://repo1.maven.org/maven2/org/apache/maven/apache-maven/3.5.0/apache-maven-3.5.0-bin.zip
diff --git a/springboot-mybatis-annotation/src/main/java/org/spring/springboot/dao/CityDao.java b/springboot-mybatis-annotation/src/main/java/org/spring/springboot/dao/CityDao.java
index d64b17b..7850b92 100644
--- a/springboot-mybatis-annotation/src/main/java/org/spring/springboot/dao/CityDao.java
+++ b/springboot-mybatis-annotation/src/main/java/org/spring/springboot/dao/CityDao.java
@@ -8,7 +8,7 @@ import org.spring.springboot.domain.City;
  *
  * Created by xchunzhao on 02/05/2017.
  */
-@Mapper
+@Mapper // 标志为 Mybatis 的 Mapper
 public interface CityDao {
 
     /**
@@ -17,6 +17,7 @@ public interface CityDao {
      * @param cityName 城市名
      */
     @Select("SELECT * FROM city")
+    // 返回 Map 结果集
     @Results({
             @Result(property = "id", column = "id"),
             @Result(property = "provinceId", column = "province_id"),
diff --git a/springboot-mybatis-annotation/src/main/resources/application.properties b/springboot-mybatis-annotation/src/main/resources/application.properties
index c882f41..4ac32f8 100644
--- a/springboot-mybatis-annotation/src/main/resources/application.properties
+++ b/springboot-mybatis-annotation/src/main/resources/application.properties
@@ -1,6 +1,5 @@
 ## 数据源配置
-spring.datasource.url=jdbc:mysql://localhost:3306/springbootdb?useUnicode=true&characterEncoding=utf8
+spring.datasource.url=jdbc:mysql://139.224.14.39:3306/springbootdb?useUnicode=true&characterEncoding=utf8
 spring.datasource.username=root
-spring.datasource.password=123456
-spring.datasource.driver-class-name=com.mysql.jdbc.Driver
-
+spring.datasource.password=yt0923666
+spring.datasource.driver-class-name=com.mysql.jdbc.Driver
\ No newline at end of file