add new md

SUMMARY.md

@@ -115,6 +115,7 @@
         * [启动](source_code/spring/springboot/bootstrap.md)
         * [条件注解](source_code/spring/springboot/condition.md)
         * [自动配置](source_code/spring/springboot/autoConfiguration.md)
+        * [监控](source_code/spring/springboot/actuator.md)
     * [mybatis](source_code/mybatis/README.md)
       * [mybatis基础功能](source_code/mybatis/mybatis.md)
       * [mybatis源码之最佳范式](source_code/mybatis/mybatis_source.md)

source_code/spring/springboot/actuator.md

@@ -0,0 +1,72 @@
+## Actuator 应用监控
+
+### 用法
+
+[参考](http://www.ityouknow.com/springboot/2018/02/06/spring-boot-actuator.html)
+
+> 添加依赖
+
+通过web容器暴露http端口
+
+```
+<dependencies>
+  <dependency>
+    <groupId>org.springframework.boot</groupId>
+    <artifactId>spring-boot-starter-web</artifactId>
+  </dependency>
+  <dependency>
+      <groupId>org.springframework.boot</groupId>
+      <artifactId>spring-boot-starter-actuator</artifactId>
+  </dependency>
+</dependencies>
+
+```
+
+> 配置
+
+properties配置
+
+```
+info.app.name=spring-boot-actuator
+info.app.version= 1.0.0
+info.app.test=test
+
+management.endpoints.web.exposure.include=*
+management.endpoint.health.show-details=always
+#management.endpoints.web.base-path=/monitor
+
+management.endpoint.shutdown.enabled=true
+
+```
+yml配置
+
+```
+info:
+   app:
+      name: cabinet-query-server
+      version: 1.0.0
+management:
+  health:
+    mail:
+      enabled: false
+  endpoints:
+    web:
+      exposure:
+        # 生产环境由于安全性的问题，注意不要暴露敏感端点
+        include: "*"
+        exclude: env
+      base-path: /actuator
+  endpoint:
+    health:
+      show-details: always
+
+```
+
+> 常用功能
+
+* heap dump
+* thread dump
+* 健康检查等
+
+
+