spring cloud 提供了微服务的全家桶, 性能低于 dubbo
代码结构
ServerApplication 代码如下:
package com.study.server; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; import org.springframework.cloud.netflix.eureka.server.EnableEurekaServer; @EnableEurekaServer @SpringBootApplication public class ServerApplication { public static void main(String[] args) { SpringApplication.run(ServerApplication.class, args); } }
application.properties 代码如下:
server.port=8761 eureka.instance.hostname=localhost eureka.client.register-with-eureka=false eureka.client.fetch-registry=false eureka.client.service-url.defaultZone = http://${eureka.instance.hostname}:${server.port}/eureka/
单节点注册中心,需要添加 eureka.client.register-with-eureka=false,eureka.client.fetch-registry=false 否则 server 会将资金注册到自己上,这个逻辑显然不合理,会报错,所以需要添加这两个配置
maven pom.xml 文件配置如下
<?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"> <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>1.5.2.RELEASE</version> <relativePath/> </parent> <modelVersion>4.0.0</modelVersion> <groupId>com.study</groupId> <artifactId>server</artifactId> <properties> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding> <java.version>1.8</java.version> </properties> <dependencies> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-starter-eureka-server</artifactId> </dependency> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-starter-config</artifactId> </dependency> </dependencies> <dependencyManagement> <dependencies> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-dependencies</artifactId> <version>Dalston.RC1</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> <repositories> <repository> <id>spring-milestones</id> <name>Spring Milestones</name> <url>https://repo.spring.io/milestone</url> <snapshots> <enabled>false</enabled> </snapshots> </repository> </repositories> </project>
代码结束启动
ServerApplication
启动成功
浏览器访问:http://127.0.0.1:8761/
红色代码的意思: 还没有 客户端到注册中心注册