Are needed to specify the configuration of services in the two previous Spring Cloud Config configuration center blog address url: spring.cloud.config.uri, clients are directly call server-side configuration center to obtain profile information. If you do end server cluster, the client can only be routed through the original way, to change the IP address of the server end of time, the client also need to modify the configuration does not comply with the concept of springcloud service governance. springcloud provides such a solution, we only need to register the server side as a service to the eureka, client end to eureka go get server-side configuration center services either.
A, Server-side transformation
1. Add dependence
In SpringCloudConfigServer project, add spring-cloud-starter-netflix-eureka-client references.
<dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId> </dependency>
<?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> <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>2.1.6.RELEASE</version> <relativePath/> <!-- lookup parent from repository --> </parent> <groupId>com.example</groupId> <artifactId>SpringCloudConfigServer</artifactId> <version>0.0.1-SNAPSHOT</version> <packaging>war</packaging> <name>SpringCloudConfigServer</name> <description>Demo project for Spring Boot</description> <properties> <java.version>1.8</java.version> <spring-cloud.version>Greenwich.SR2</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-config-server</artifactId> </dependency> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-tomcat</artifactId> <scope>provided</scope> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-test</artifactId> <scope>test</scope> </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>
2. Add the configuration eureka registry
Increase the allocation eureka registry in application.properties in, http: // localhost: 8088 is behind the launch of eureka server address
eureka.client.serviceUrl.defaultZone=http://localhost:8088/eureka/
3. Increase comment
Increase @EnableDiscoveryClient comment in the main method
Second, the client transformation
1, adding a dependency
Also the introduction of spring-cloud-starter-netflix-eureka-client.
<dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId> </dependency>
<?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> <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>2.1.6.RELEASE</version> <relativePath/> <!-- lookup parent from repository --> </parent> <groupId>com.example</groupId> <artifactId>SpringCloudConfigClient</artifactId> <version>0.0.1-SNAPSHOT</version> <packaging>war</packaging> <name>SpringCloudConfigClient</name> <description>Demo project for Spring Boot</description> <properties> <java.version>1.8</java.version> <spring-cloud.version>Greenwich.SR2</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-actuator</artifactId> </dependency> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-tomcat</artifactId> <scope>provided</scope> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-test</artifactId> <scope>test</scope> </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>
2. Profiles
Remove the specified configuration services in bootstrap.properties address url, adds the final three configurations:
spring.cloud.config.name=neo-config
spring.cloud.config.profile=dev
spring.cloud.config.label=
spring.cloud.config.discovery.enabled=true
spring.cloud.config.discovery.serviceId=spring-cloud-config-server
eureka.client.serviceUrl.defaultZone=http://localhost:8088/eureka/
spring.cloud.config.discovery.enabled: open Config service discovery support
spring.cloud.config.discovery.serviceId: name specifies the server side, which is the server-side spring.application.name value
eureka.client.serviceUrl.defaultZone: point address registry
3. Start class adds comment
Notes @EnableDiscoveryClient increase in the main method.
Third, the test
1. Start eureka server, SpringCloudConfigServer, SpringCloudConfigClient respectively.
2. Enter the browser HTTP: // localhost: 8088 / , you can see injected into eureka server in the service.
3. Enter the HTTP: // localhost: 8001 / Neo-config / dev , you can view the configuration profile.
4. Enter HTTP: // localhost: 8002 / Hello , you can read the file attribute information configuration
Reference: http: //www.ityouknow.com/springcloud/2017/05/25/springcloud-config-eureka.html