springboot2.0和springcloudFinchley版項目的搭建示例
小編給大家分享一下springboot2.0和springcloud Finchley版項目的搭建示例，希望大家閱讀完這篇文章之后都有所收獲，下面讓我們一起去探討吧！
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前段時間spring boot 2.0發(fā)布了，與之對應(yīng)的spring cloud Finchley版本也隨之而來了，兩者之間的關(guān)系和版本對應(yīng)詳見我這邊文章：spring boot和spring cloud對應(yīng)的版本關(guān)系
項目地址：spring-cloud-demo
spring boot 1.x和spring cloud Dalston和Edgware版本搭建的微服務(wù)項目現(xiàn)在已經(jīng)很流行了，現(xiàn)在很多企業(yè)都已經(jīng)在用了，這里就不多說了。
使用版本說明：
spring boot 2.0.x
spring cloud Finchley.RELEASE
jdk 1.8
maven 3.9
Eureka 注冊中心
spring cloud Finchley在支持spring 2.0時修改了eureka的jar包，把之前netflix系列的jar引入的時候都加上了netflix
<dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-starter-netflix-eureka-server</artifactId> </dependency>
新建一個eureka-service注冊中心服務(wù)，pom.xml 文件內(nèi)容如下：
<?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">
<modelVersion>4.0.0</modelVersion>
<groupId>com.sunvalley</groupId>
<artifactId>eureka-service</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<name>eureka-service</name>
<description>Demo project for Spring Boot</description>
<parent>
<groupId>com.sunvalley.springcloud</groupId>
<artifactId>spring-cloud-demo</artifactId>
<version>0.0.1-SNAPSHOT</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>
<spring-cloud.version>Finchley.RELEASE</spring-cloud.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-eureka-server</artifactId>
</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>${spring-cloud.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>eureka-service服務(wù)的配置文件，application.yml
spring:
application:
name: eureka-service
server:
port: 5000
eureka:
instance:
hostname: localhost
client:
registerWithEureka: false
fetchRegistry: false
serviceUrl:
defaultZone: http://${eureka.instance.hostname}:${server.port}/eureka/eureka-service服務(wù)的配置文件，EurekaServiceApplication
@EnableEurekaServer
@SpringBootApplication
public class EurekaServiceApplication {
public static void main(String[] args) {
SpringApplication.run(EurekaServiceApplication.class, args);
}
}使用IDEA啟動eureka-service服務(wù)，本地訪問 http://localhost:5000/ 即可看到注冊中心內(nèi)容。
服務(wù)消費者consumer和提供者provider
實際工作中大多數(shù)一個服務(wù)既是其它服務(wù)的消費者又有可能是服務(wù)的提供者，所以我們也就不用刻意的取區(qū)分開。
新建一個order-service服務(wù)，pom.xml文件
注意：除了eureka-client，openfeign等jar包外，記得引入spring-boot-starter-web不然會出現(xiàn)啟動報錯。
<?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.sunvalley</groupId>
<artifactId>order-service</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<name>order-service</name>
<description>Demo project for Spring Cloud</description>
<parent>
<groupId>com.sunvalley.springcloud</groupId>
<artifactId>spring-cloud-demo</artifactId>
<version>0.0.1-SNAPSHOT</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>
<spring-cloud.version>Finchley.RELEASE</spring-cloud.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</artifactId>
</dependency>
<!-- eureka 里面已經(jīng)包含 ribbon 了， 所以不用單獨添加， ribbon依賴， 點擊依賴就去看就知道了 -->
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-eureka-client</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.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<optional>true</optional>
</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>
<repositories>
<repository>
<id>spring-snapshots</id>
<name>Spring Snapshots</name>
<url>https://repo.spring.io/snapshot</url>
<snapshots>
<enabled>true</enabled>
</snapshots>
</repository>
<repository>
<id>spring-milestones</id>
<name>Spring Milestones</name>
<url>https://repo.spring.io/milestone</url>
<snapshots>
<enabled>false</enabled>
</snapshots>
</repository>
</repositories>
<pluginRepositories>
<pluginRepository>
<id>spring-snapshots</id>
<name>Spring Snapshots</name>
<url>https://repo.spring.io/snapshot</url>
<snapshots>
<enabled>true</enabled>
</snapshots>
</pluginRepository>
<pluginRepository>
<id>spring-milestones</id>
<name>Spring Milestones</name>
<url>https://repo.spring.io/milestone</url>
<snapshots>
<enabled>false</enabled>
</snapshots>
</pluginRepository>
</pluginRepositories>
</project>order-service服務(wù)的配置文件，application.yml
spring: application: name: order-service server: port: 5100 eureka: client: service-url: defaultZone: http://localhost:5000/eureka/ feign: hystrix: enabled: true
order-service服務(wù)的啟動類，OrderServiceApplication
@EnableCircuitBreaker
@EnableFeignClients
@EnableEurekaClient
@SpringBootApplication
public class OrderServiceApplication {
public static void main(String[] args) {
SpringApplication.run(OrderServiceApplication.class, args);
}
}order-service服務(wù)的接口，OrderController
@RestController
@RequestMapping("/order")
public class OrderController {
@Value("${server.port}")
private String port;
/**
* 獲取服務(wù)端口號
* @return
*/
@GetMapping("/getOrderPort")
public String getOrderPort() {
return "order-service port：" + port;
}
}新建一個user-service服務(wù)，pom.xml文件跟order-service一樣的這里就不列出來了
user-service服務(wù)的配置文件，application.yml
spring: application: name: user-service server: port: 5200 eureka: client: service-url: defaultZone: http://localhost:5000/eureka/ feign: hystrix: enabled: true
user-service服務(wù)的啟動類也跟order-service一樣的
在user-service工程目錄下新建一個package，再新建一個OrderRemote接口使用feign調(diào)用order-service的方法
@FeignClient(value = "order-service", fallback = OrderRemoteHystrix.class)
public interface OrderRemote {
@GetMapping("/order/getOrderPort")
String getOrderPort();
}熔斷機制提示類
@Component
public class OrderRemoteHystrix implements OrderRemote {
@Override
public String getOrderPort() {
return "order service 調(diào)用失敗！";
}
}user-service服務(wù)的接口，UserController
@RestController
@RequestMapping("/user")
public class UserController {
@Autowired
OrderRemote orderRemote;
@Value("${server.port}")
String port;
/**
* 獲取用戶服務(wù)的端口
* @return
*/
@GetMapping("/getUserPort")
public String getUserPort() {
return "user-service port：" + port;
}
/**
* 獲取訂單服務(wù)的端口
* @return
*/
@GetMapping("/getOrderPort")
public String getOrderPort() {
return "user-order-service port：" + orderRemote.getOrderPort();
}
}測試，分別啟動eureka-service，order-service，user-service就可以在注冊中心看到服務(wù)
在瀏覽器訪問 http://localhost:5100/order/getOrderPort 調(diào)用order-service的接口
在瀏覽器訪問 http://localhost:5200/user/getOrderPort 通過user-service使用feign聲明式調(diào)用order-service的接口
關(guān)閉order-service，再次調(diào)用就會發(fā)現(xiàn)熔斷機制起了作用
spring cloud gateway
Spring Cloud Gateway是Spring官方基于Spring 5.0，Spring Boot 2.0和Project Reactor等技術(shù)開發(fā)的網(wǎng)關(guān)，Spring Cloud Gateway旨在為微服務(wù)架構(gòu)提供一種簡單而有效的統(tǒng)一的API路由管理方式。Spring Cloud Gateway作為Spring Cloud生態(tài)系中的網(wǎng)關(guān)，目標(biāo)是替代Netflix ZUUL，其不僅提供統(tǒng)一的路由方式，并且基于Filter鏈的方式提供了網(wǎng)關(guān)基本的功能，例如：安全，監(jiān)控/埋點，和限流等。
新建一個gateway-service服務(wù)，pom.xml文件如下
<?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">
<modelVersion>4.0.0</modelVersion>
<groupId>com.sunvalley</groupId>
<artifactId>gateway-service</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<name>gateway-service</name>
<description>Demo project for Spring Cloud</description>
<parent>
<groupId>com.sunvalley.springcloud</groupId>
<artifactId>spring-cloud-demo</artifactId>
<version>0.0.1-SNAPSHOT</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>
<spring-cloud.version>Finchley.RELEASE</spring-cloud.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-gateway</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-hystrix</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<optional>true</optional>
</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>gateway-service的配置文件,application.yml
spring: application: name: gateway-service cloud: # spring cloud gateway 路由配置方式 gateway: discovery: #是否與服務(wù)發(fā)現(xiàn)組件進(jìn)行結(jié)合，通過 serviceId(必須設(shè)置成大寫) 轉(zhuǎn)發(fā)到具體的服務(wù)實例。默認(rèn)為false，設(shè)為true便開啟通過服務(wù)中心的自動根據(jù) serviceId 創(chuàng)建路由的功能。 locator: #路由訪問方式：http://Gateway_HOST:Gateway_PORT/大寫的serviceId/**，其中微服務(wù)應(yīng)用名默認(rèn)大寫訪問。 enabled: true routes: - id: 163 #網(wǎng)關(guān)路由到網(wǎng)易官網(wǎng) uri: http://www.163.com/ predicates: - Path=/163/** # - id: ORDER-SERVICE #網(wǎng)關(guān)路由到訂單服務(wù)order-service # uri: lb://ORDER-SERVICE # predicates: # - Path=/ORDER-SERVICE/** # - id: USER-SERVICE #網(wǎng)關(guān)路由到用戶服務(wù)user-service # uri: lb://USER-SERVICE # predicates: # - Pach=/USER-SERVICE/** server: port: 5001 logging: level: org.springframework.cloud.gateway: trace org.springframework.http.server.reactive: debug org.springframework.web.reactive: debug reactor.ipc.netty: debug eureka: client: service-url: defaultZone: http://localhost:5000/eureka/ feign: hystrix: enabled: true
gateway-service的啟動類，Application
package com.sunvalley.demo;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.gateway.route.RouteLocator;
import org.springframework.cloud.gateway.route.builder.RouteLocatorBuilder;
import org.springframework.context.annotation.Bean;
@SpringBootApplication
public class GatewayServiceApplication {
/**
* spring cloud gateway 配置方式之一，啟動主程序配置，還有一種是配置文件配置
* @param builder
* @return
*/
@Bean
public RouteLocator customRouteLocator(RouteLocatorBuilder builder) {
return builder.routes()
.route(r -> r.path("/qq/**")
.and()
.uri("http://www.qq.com/"))
.build();
}
public static void main(String[] args) {
SpringApplication.run(GatewayServiceApplication.class, args);
}
}通過上面我們可以看到，gateway網(wǎng)關(guān)路由配置有兩種方式：
1.通過@Bean自定義RouteLocator，在啟動主類Application中配置
2.在配置文件yml中配置
這兩種方式都可以實現(xiàn)網(wǎng)關(guān)路由是等價的，但是通常項目開發(fā)中會使用配置文件yml方式。
運行測試：
訪問 http://localhost:8080/qq，路由轉(zhuǎn)發(fā)到 http://www.qq.com
訪問http://localhost:8080/163, 路由轉(zhuǎn)發(fā)到 http://www.163.com
看完了這篇文章，相信你對“springboot2.0和springcloud Finchley版項目的搭建示例”有了一定的了解，如果想了解更多相關(guān)知識，歡迎關(guān)注創(chuàng)新互聯(lián)行業(yè)資訊頻道，感謝各位的閱讀！
當(dāng)前名稱：springboot2.0和springcloudFinchley版項目的搭建示例
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