• 前置條件

1. rabbitmq安裝
2. 使用maven構建專案
3. 安裝postman（方便傳送請求重新整理配置）
4. 環境：springboot 2.0.6版本

 

• 建立專案config-server

1. 專案結構

1. bootstrap.yml配置（本文件使用本地配置檔案，也可使用git和svn）

1. 動態改變的配置檔案（自定義檔案中的值）

1. pom.xml內容

<?xml version="1.0" encoding="UTF-8"?>

<project

xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

       xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">

       <modelVersion>4.0.0</modelVersion>

       <groupId

>com.wei</groupId>

       <artifactId>config-server</artifactId>

       <version>0.0.1-SNAPSHOT</version>

       <packaging>jar</packaging>

       <name

>config-server</name>

       <description>Demo project for Spring Boot</description>

       <parent>

              <groupId>org.springframework.boot</groupId>

              <artifactId>spring-boot-starter-parent</artifactId>

              <version>2.0.6.RELEASE</version>

              <relativePath/> <!-- lookup parent from repository -->

       </parent>

       <properties>

              <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>

              <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>

              <java.version>1.8</java.version>

              <spring-cloud.version>Finchley.SR1</spring-cloud.version>

       </properties>

       <dependencies>

              <dependency>

                     <groupId>org.springframework.cloud</groupId>

                     <artifactId>spring-cloud-config-server</artifactId>

              </dependency>

              <dependency>

                     <groupId>org.springframework.boot</groupId>

                     <artifactId>spring-boot-starter-test</artifactId>

                     <scope>test</scope>

              </dependency>

              <dependency>

            <groupId>org.springframework.cloud</groupId>

            <artifactId>spring-cloud-starter-bus-amqp</artifactId>

        </dependency>

        <dependency>

            <groupId>org.springframework.boot</groupId>

            <artifactId>spring-boot-starter-actuator</artifactId>

        </dependency>

       </dependencies>

       <dependencyManagement>

              <dependencies>

                     <dependency>

                            <groupId>org.springframework.cloud</groupId>

                            <artifactId>spring-cloud-dependencies</artifactId>

                            <version>${spring-cloud.version}</version>

                            <type>pom</type>

                            <scope>import</scope>

                     </dependency>

              </dependencies>

       </dependencyManagement>

       <build>

              <plugins>

                     <plugin>

                            <groupId>org.springframework.boot</groupId>

                            <artifactId>spring-boot-maven-plugin</artifactId>

                     </plugin>

              </plugins>

       </build>

</project>

 

1. 啟動專案類注意事項

• 建立專案config-client

1. 專案結構

1. bootstrap.yml配置

1. pom.xml內容

<?xml version="1.0" encoding="UTF-8"?>

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

       xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">

       <modelVersion>4.0.0</modelVersion>

 

       <groupId>com.wei</groupId>

       <artifactId>config-client</artifactId>

       <version>0.0.1-SNAPSHOT</version>

       <packaging>jar</packaging>

 

       <name>config-client</name>

       <description>Demo project for Spring Boot</description>

 

       <parent>

              <groupId>org.springframework.boot</groupId>

              <artifactId>spring-boot-starter-parent</artifactId>

              <version>2.0.6.RELEASE</version>

              <relativePath/> <!-- lookup parent from repository -->

       </parent>

 

       <properties>

              <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>

              <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>

              <java.version>1.8</java.version>

              <spring-cloud.version>Finchley.SR1</spring-cloud.version>

       </properties>

 

       <dependencies>

              <dependency>

                     <groupId>org.springframework.boot</groupId>

                     <artifactId>spring-boot-starter-web</artifactId>

              </dependency>

      

              <dependency>

                     <groupId>org.springframework.cloud</groupId>

                     <artifactId>spring-cloud-starter-config</artifactId>

              </dependency>

 

              <dependency>

                     <groupId>org.springframework.boot</groupId>

                     <artifactId>spring-boot-starter-test</artifactId>

                     <scope>test</scope>

              </dependency>

             

              <dependency>

                     <groupId>org.springframework.cloud</groupId>

                     <artifactId>spring-cloud-starter-bus-amqp</artifactId>

              </dependency>

       </dependencies>

 

       <dependencyManagement>

              <dependencies>

                     <dependency>

                            <groupId>org.springframework.cloud</groupId>

                            <artifactId>spring-cloud-dependencies</artifactId>

                            <version>${spring-cloud.version}</version>

                            <type>pom</type>

                            <scope>import</scope>

                     </dependency>

              </dependencies>

       </dependencyManagement>

 

       <build>

              <plugins>

                     <plugin>

                            <groupId>org.springframework.boot</groupId>

                            <artifactId>spring-boot-maven-plugin</artifactId>

                     </plugin>

              </plugins>

       </build>

 

 

</project>

 

1. service內容

1. controller內容

 

 

• 專案啟動執行實現動態重新整理配置

1. 分別啟動config-server和config-client專案
2. postman傳送請求訪問 ” http://19168.1.8:8080/hello”檢視返回值password

1. 不重啟專案，直接改變cykp-dev.yml檔案中的password值

改之前：改之後

1. postman傳送請求訪問 ” http://192.168.1.8:8888/actuator/bus-refresh”（不會返回任何值）

1. 再次postman傳送請求訪問 ” http://192.168.1.8:8080/hello”檢視返回值password （發生了改變）

 

 

 

• 遇坑總結

1. 由於springboot2.0後改變很多導致網上攻略有很多坑
2. 使用@value註解的類上需要添加註解@RefreshScope
3. 傳送請求訪問 ” http://192.168.1.8:8888/actuator/bus-refresh”的需要以post請求傳送