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概述：
Spring Boot 2.0相对于之前的版本，变化还是很大的。首先对jdk的版本要求已经不能低于1.8，其次依赖的spring的版本也是最新版本5.0，并集成了功能强大的webflux等。
SpringCloud Finchley 版本的升级也带来了全新组件：Spring Cloud Function 和 Spring Cloud Gateway ,前者致力于函数式编程模块的整合，后者则是网关netflix zuul 的替换组件。
1）需要的依赖：
<?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.iyb</groupId> <artifactId>saturn</artifactId> <version>0.0.1-SNAPSHOT</version> <packaging>jar</packaging> <name>sc-saturn</name> <description>sc-saturn for Spring Boot</description> <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>2.0.1.RELEASE</version> </parent> <properties> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding> <java.version>1.8</java.version> <mapper.version>3.4.0</mapper.version> <pagehelper.version>4.1.6</pagehelper.version> <fastjson.version>1.2.13</fastjson.version> <jackson.version>2.8.5</jackson.version> <druid.version>1.0.27</druid.version> <mysql.version>5.1.40</mysql.version> <commons-fileupload.version>1.3.1</commons-fileupload.version> </properties> <dependencies> <!--starter begin--> <!--spring cloud starter--> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-starter-consul-discovery</artifactId> </dependency> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-starter-config</artifactId> </dependency> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-starter-openfeign</artifactId> </dependency> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-starter-netflix-hystrix</artifactId> </dependency> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-starter-netflix-zuul</artifactId> </dependency> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-starter-netflix-ribbon</artifactId> </dependency> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-starter-sleuth</artifactId> </dependency> <!--tomcat starter--> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-tomcat</artifactId> <scope>provided</scope> </dependency> <dependency> <groupId>org.apache.tomcat.embed</groupId> <artifactId>tomcat-embed-jasper</artifactId> <scope>compile</scope> </dependency> <!--actuator starter--> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-actuator</artifactId> </dependency> <!--spring boot starter--> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter</artifactId> </dependency> <!--spring starter--> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-jdbc</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-aop</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-data-redis</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <!--fastjon--> <dependency> <groupId>com.alibaba</groupId> <artifactId>fastjson</artifactId> <version>${fastjson.version}</version> </dependency> <dependency> <groupId>io.github.openfeign</groupId> <artifactId>feign-gson</artifactId> <version>9.3.1</version> </dependency> <!--lombok--> <dependency> <groupId>org.projectlombok</groupId> <artifactId>lombok</artifactId> </dependency> <dependency> <groupId>log4j</groupId> <artifactId>log4j</artifactId> <version>1.2.17</version> </dependency> <dependency> <groupId>commons-beanutils</groupId> <artifactId>commons-beanutils</artifactId> </dependency> <dependency> <groupId>commons-collections</groupId> <artifactId>commons-collections</artifactId> </dependency> <dependency> <groupId>org.apache.commons</groupId> <artifactId>commons-lang3</artifactId> <version>3.4</version> </dependency> <dependency> <groupId>com.netflix.feign</groupId> <artifactId>feign-gson</artifactId> <version>8.15.1</version> </dependency> </dependencies> // Spring Cloud Finchley.RELEASE <dependencyManagement> <dependencies> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-dependencies</artifactId> <version>Finchley.RELEASE</version> <type>pom</type> <scope>import</scope> </dependency> </dependencies> </dependencyManagement> </project>
需要注意的地方：
部分依赖做了改变：
| 旧版本 | Finchley 版本 |
|---|---|
| spring-cloud-starter-eureka-client | spring-cloud-starter-netflix-eureka-client |
| spring-cloud-starter-eureka-server | spring-cloud-starter-netflix-eureka-server |
| spring-cloud-starter-hystrix | spring-cloud-starter-netflix-hystrix |
| spring-cloud-starter-hystrix-dashboard | spring-cloud-starter-netflix-hystrix-dashboard |
| spring-cloud-starter-ribbon | spring-cloud-starter-netflix-ribbon |
| spring-cloud-starter-turbine | spring-cloud-starter-netflix-turbine |
| spring-cloud-starter-zuul | spring-cloud-starter-netflix-zuul |
| spring-cloud-starter-feign | spring-cloud-starter-openfeign |
新版本的 SpringCloud 上面的依赖都发生了变化，依赖中都引入了 netflix，或许是为了声明吧（组件的实现底层并非spring）。
log4j依赖：
在spring cloud之前的版本中，日志只需要引入lombok即可，但是Finchley版本需要单独的引用。
<!--lombok--> <dependency> <groupId>org.projectlombok</groupId> <artifactId>lombok</artifactId> </dependency> <dependency> <groupId>log4j</groupId> <artifactId>log4j</artifactId> <version>1.2.17</version> </dependency>
2）集成consul配置文件：
spring: application: name: sc-saturn profiles: active: dev cloud: config: # uri: http://localhost:9999 discovery: enabled: false serviceId: sc-earth-config-server label: master profile: pre consul: host: http://localhost:8500 port: 80 discovery: prefer-ip-address: true #这里是重写健康检查的endPoint，默认为 /health，重写是为了节省不必要的网络传输，只需要http 200状态码即可 health-check-path: /ok/health heartbeat: enabled: false
3）启动类：
@SpringBootApplication
@EnableFeignClients
@EnableZuulServer
@ComponentScan(basePackages={"com.iyb.ak"})
@EnableDiscoveryClient
@Slf4j
public class SaturnApplication implements CommandLineRunner{
public static void main(String[] args) {
SpringApplication.run(SaturnApplication.class, args);
}
@Override
public void run(String... args) throws Exception {
log.info(">>>>>>>>>>>>>>> sc-saturn 启动完成<<<<<<<<<<<<<");
}
}
4）示例：
注册中心：
可以看到 sc-saturn 已经成功注册到 consul中了。另外，上面的consul ui界面发生了变化，这是1.2版本做出的优化，相较以前的ui界面，已经好看很多了。
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持亿速云。
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