添加基于Nacos的动态配置相关代码

README.md

@@ -25,6 +25,7 @@
 - 基于Zookeeper实现的分布式锁
 - 分布式ID（基于Leaf的Segment模式）
 - 分布式事务（使用RocketMQ实现最终一致性）
+- 基于Nacos的动态配置
 
 ## 工具类
 

pom.xml

@@ -47,13 +47,14 @@
         <mybatis.version>3.4.6</mybatis.version>
         <mybatis.spring.version>1.3.2</mybatis.spring.version>
         <mysql.version>8.0.16</mysql.version>
+        <nacos.version>0.3.6</nacos.version>
         <perf4j.version>0.9.16</perf4j.version>
         <poi.version>3.17</poi.version>
         <rocketmq.version>4.3.0</rocketmq.version>
         <servlet.version>3.1.0</servlet.version>
         <sharding-sphere.version>4.0.0-RC2</sharding-sphere.version>
         <slf4j.version>1.7.21</slf4j.version>
-        <spring.version>5.2.3.RELEASE</spring.version>
+        <spring.version>5.1.6.RELEASE</spring.version>
         <spring.redis.version>2.0.12.RELEASE</spring.redis.version>
         <xmemcached.version>2.4.3</xmemcached.version>
         <zk.version>3.4.14</zk.version>
@@ -438,6 +439,24 @@
                 <version>${perf4j.version}</version>
             </dependency>
 
+            <dependency>
+                <groupId>com.alibaba.nacos</groupId>
+                <artifactId>nacos-spring-context</artifactId>
+                <version>${nacos.version}</version>
+            </dependency>
+
+            <dependency>
+                <groupId>commons-codec</groupId>
+                <artifactId>commons-codec</artifactId>
+                <version>1.11</version>
+            </dependency>
+
+            <dependency>
+            <groupId>org.yaml</groupId>
+            <artifactId>snakeyaml</artifactId>
+            <version>1.23</version>
+        </dependency>
+
         </dependencies>
     </dependencyManagement>
 

springmvc-service/pom.xml

@@ -63,5 +63,10 @@
             <artifactId>perf4j</artifactId>
         </dependency>
 
+        <dependency>
+            <groupId>com.alibaba.nacos</groupId>
+            <artifactId>nacos-spring-context</artifactId>
+        </dependency>
+
     </dependencies>
 </project>

springmvc-service/src/main/java/com/doodl6/springmvc/service/config/NacosConfigService.java

@@ -0,0 +1,18 @@
+package com.doodl6.springmvc.service.config;
+
+import com.alibaba.nacos.api.config.annotation.NacosValue;
+import org.springframework.stereotype.Service;
+
+/**
+ * nacos配置服务
+ */
+@Service
+public class NacosConfigService {
+
+    @NacosValue(value = "${maxPageSize:20}", autoRefreshed = true)
+    private int maxPageSize;
+
+    public int getMaxPageSize() {
+        return maxPageSize;
+    }
+}

springmvc-web/src/main/java/com/doodl6/springmvc/web/controller/ConfigController.java

@@ -0,0 +1,24 @@
+package com.doodl6.springmvc.web.controller;
+
+import com.doodl6.springmvc.service.config.NacosConfigService;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+import javax.annotation.Resource;
+
+/**
+ * 配置控制类
+ */
+@RestController
+@RequestMapping("/config")
+public class ConfigController extends BaseController {
+
+    @Resource
+    private NacosConfigService nacosConfigService;
+
+    @GetMapping(value = "/getMaxPageSize")
+    public int getMaxPageSize() {
+        return nacosConfigService.getMaxPageSize();
+    }
+}

springmvc-web/src/main/resources/spring/spring-base.xml

@@ -5,9 +5,9 @@
        xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.2.xsd
        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.2.xsd">
 
-    <context:annotation-config/>
     <context:component-scan base-package="com.doodl6.springmvc">
         <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
+        <context:exclude-filter type="annotation" expression="org.springframework.web.bind.annotation.RestController"/>
         <context:exclude-filter type="annotation" expression="javax.websocket.server.ServerEndpoint"/>
     </context:component-scan>
 

springmvc-web/src/main/resources/spring/spring-mvc.xml

@@ -13,6 +13,7 @@
 
     <context:component-scan base-package="com.doodl6.springmvc" use-default-filters="false">
         <context:include-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
+        <context:include-filter type="annotation" expression="org.springframework.web.bind.annotation.RestController"/>
         <context:include-filter type="annotation" expression="javax.websocket.server.ServerEndpoint"/>
     </context:component-scan>
 

springmvc-web/src/main/resources/spring/spring-nacos.xml

@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<beans xmlns="http://www.springframework.org/schema/beans" xmlns:nacos="http://nacos.io/schema/nacos"
+       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+       xsi:schemaLocation="http://nacos.io/schema/nacos http://nacos.io/schema/nacos.xsd
+http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd">
+
+    <!--nacos配置，这里是使用配置文件的方式,这只是其中的一种方式-->
+    <!--开启注解-->
+    <nacos:annotation-driven/>
+    <!--指定nacos配置地址-->
+    <nacos:global-properties server-addr="127.0.0.1:8848"/>
+    <!--指定dataId,group-id, 是否是自动刷新-->
+    <nacos:property-source data-id="doodl6" group-id="spring-mvc" auto-refreshed="true"/>
+</beans>

springmvc-web/src/main/webapp/WEB-INF/web.xml

@@ -8,7 +8,12 @@
     <!-- Spring Config Location -->
     <context-param>
         <param-name>contextConfigLocation</param-name>
-        <param-value>classpath:spring/*.xml</param-value>
+        <param-value>
+            classpath:spring/spring-base.xml,
+            classpath:spring/spring-datasource.xml,
+            classpath:spring/spring-dubbo.xml,
+            classpath:spring/spring-nacos.xml
+        </param-value>
     </context-param>
 
     <context-param>