二十分钟快速搭建一套SpringCloud微服务
| 工具及依赖 | 版本 |
|---|---|
| JDK | 1.8 |
| SpringBoot | 2.3.7.RELEASE |
| Spring Cloud Netflix | Hoxton.SR12 |
1.创建父项目
1.1 开始创建一个普通的maven工程
1.2 修改 父工程的pom.xml文件
这里主要是做一些版本管理以及模块管理
<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>4.0.0modelVersion>
<groupId>org.examplegroupId>
<artifactId>spring-cloudartifactId>
<version>1.0-SNAPSHOTversion>
<packaging>pompackaging>
<modules>
modules>
<properties>
<java.version>1.8java.version>
<mybatis.plus.version>3.4.2mybatis.plus.version>
<mysql.connect.java.version>8.0.27mysql.connect.java.version>
<druid.version>1.2.8druid.version>
<spring-boot-dependencies.version>2.3.7.RELEASEspring-boot-dependencies.version>
<spring-cloud-dependencies.version>Hoxton.SR12spring-cloud-dependencies.version>
properties>
project>
2.创建eureka注册中心
2.1 创建一个maven项目，同1.1步骤一样，这里忽略
2.2 eureka的pom.xml引入依赖
<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>
<artifactId>spring-cloudartifactId>
<groupId>org.examplegroupId>
<version>1.0-SNAPSHOTversion>
parent>
<modelVersion>4.0.0modelVersion>
<artifactId>eureka-serverartifactId>
<packaging>jarpackaging>
<properties>
<java.version>1.8java.version>
properties>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloudgroupId>
<artifactId>spring-cloud-dependenciesartifactId>
<version>${spring-cloud-dependencies.version}version>
<type>pomtype>
<scope>importscope>
dependency>
<dependency>
<groupId>org.springframework.bootgroupId>
<artifactId>spring-boot-dependenciesartifactId>
<version>${spring-boot-dependencies.version}version>
<type>pomtype>
<scope>importscope>
dependency>
dependencies>
dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloudgroupId>
<artifactId>spring-cloud-starter-netflix-eureka-serverartifactId>
<version>2.2.9.RELEASEversion>
dependency>
<dependency>
<groupId>org.springframework.bootgroupId>
<artifactId>spring-boot-starter-webartifactId>
<version>2.3.7.RELEASEversion>
dependency>
dependencies>
<build>
<finalName>eurekafinalName>
<plugins>
<plugin>
<groupId>org.springframework.bootgroupId>
<artifactId>spring-boot-maven-pluginartifactId>
<executions>
<execution>
<goals>
<goal>repackagegoal>
goals>
execution>
executions>
<configuration>
<includeSystemScope>trueincludeSystemScope>
configuration>
plugin>
<plugin>
<groupId>org.apache.maven.pluginsgroupId>
<artifactId>maven-surefire-pluginartifactId>
<configuration>
<skipTests>trueskipTests>
configuration>
plugin>
plugins>
build>
project>
2.3 创建application.yml文件
server:
port: 8001
spring:
application:
name: eureka
eureka:
client:
fetch-registry: true
register-with-eureka: false
service-url:
defaultZone: ${EUREKA_URL:http://127.0.0.1:${server.port:8001}/eureka/}
2.4 创建主启动类
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.netflix.eureka.server.EnableEurekaServer;
@SpringBootApplication
@EnableEurekaServer//标识eureka服务端
public class EurekaApplication {
public static void main(String[] args) {
SpringApplication.run(EurekaApplication.class,args);
}
}
2.5 启动项目 ，浏览器输入ip+端口，例如 127.0.0.1:8001
3.创建 order-server 的微服务注册到eureka
3.1 创建一个maven项目，同1.1步骤一样，这里忽略
3.2 order-server 的pom.xml引入依赖
<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>
<artifactId>spring-cloudartifactId>
<groupId>org.examplegroupId>
<version>1.0-SNAPSHOTversion>
parent>
<modelVersion>4.0.0modelVersion>
<artifactId>order-serverartifactId>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloudgroupId>
<artifactId>spring-cloud-dependenciesartifactId>
<version>${spring-cloud-dependencies.version}version>
<type>pomtype>
<scope>importscope>
dependency>
<dependency>
<groupId>org.springframework.bootgroupId>
<artifactId>spring-boot-dependenciesartifactId>
<version>${spring-boot-dependencies.version}version>
<type>pomtype>
<scope>importscope>
dependency>
dependencies>
dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.bootgroupId>
<artifactId>spring-boot-starter-webartifactId>
dependency>
<dependency>
<groupId>org.springframework.cloudgroupId>
<artifactId>spring-cloud-starter-netflix-eureka-clientartifactId>
dependency>
<dependency>
<groupId>org.projectlombokgroupId>
<artifactId>lombokartifactId>
dependency>
<dependency>
<groupId>com.baomidougroupId>
<artifactId>mybatis-plus-boot-starterartifactId>
<version>${mybatis.plus.version}version>
dependency>
<dependency>
<groupId>mysqlgroupId>
<artifactId>mysql-connector-javaartifactId>
<version>${mysql.connect.java.version}version>
dependency>
<dependency>
<groupId>org.springframework.bootgroupId>
<artifactId>spring-boot-starter-jdbcartifactId>
dependency>
<dependency>
<groupId>com.alibabagroupId>
<artifactId>druid-spring-boot-starterartifactId>
<version>${druid.version}version>
dependency>
<dependency>
<groupId>io.springfoxgroupId>
<artifactId>springfox-swagger2artifactId>
<version>2.9.2version>
dependency>
<dependency>
<groupId>io.springfoxgroupId>
<artifactId>springfox-swagger-uiartifactId>
<version>2.9.2version>
dependency>
dependencies>
<build>
<finalName>orderfinalName>
<plugins>
<plugin>
<groupId>org.springframework.bootgroupId>
<artifactId>spring-boot-maven-pluginartifactId>
<executions>
<execution>
<goals>
<goal>repackagegoal>
goals>
execution>
executions>
<configuration>
<includeSystemScope>trueincludeSystemScope>
configuration>
plugin>
<plugin>
<groupId>org.apache.maven.pluginsgroupId>
<artifactId>maven-surefire-pluginartifactId>
<configuration>
<skipTests>trueskipTests>
configuration>
plugin>
plugins>
build>
project>
3.3 创建application.yml文件
server:
port: 8011
spring:
application:
name: order-server01
datasource:
url: ${DB_URL:jdbc:mysql://192.168.34.7:3306/order?useSSL=false&characterEncoding=UTF8}
username: ${DB_NAME:root}
password: ${DB_PWD:root}
driver-class-name: com.mysql.cj.jdbc.Driver
type: com.alibaba.druid.pool.DruidDataSource
druid:
# 下面为连接池的补充设置，应用到上面所有数据源中
# 初始化大小，最小，最大
initial-size: 15
min-idle: 15
max-active: 50
# 配置获取连接等待超时的时间
max-wait: 60000
# 配置间隔多久才进行一次检测，检测需要关闭的空闲连接，单位是毫秒
time-between-eviction-runs-millis: 60000
# 配置一个连接在池中最小生存的时间，单位是毫秒
min-evictable-idle-time-millis: 300000
eureka:
client:
service-url:
defaultZone: ${EUREKA_URL:http://127.0.0.1:8001/eureka/}
##mybatis plus 设置
mybatis-plus:
# ** 代表多级 *代表一级
mapper-locations: classpath*:com/**/xml/*Mapper.xml
global-config:
# 关闭MP3.0自带的banner
banner: false
db-config:
#主键类型 0:"数据库ID自增",1:"该类型为未设置主键类型", 2:"用户输入ID",3:"全局唯一ID (数字类型唯一ID)", 4:"全局唯一ID UUID",5:"字符串全局唯一ID (idWorker 的字符串表示)";
id-type: AUTO
# 默认数据库表下划线命名
table-underline: true
configuration:
#这个配置会将执行的sql打印出来，在开发或测试的时候可以用，正式环境需要注释，可以在log日志里打印出来
log-impl: org.apache.ibatis.logging.stdout.StdOutImpl
3.4 创建主启动类 并启动项目查看eureka的dashboard
@SpringBootApplication
@EnableEurekaClient
@EnableSwagger2
public class OrderApplication {
public static void main(String[] args) {
SpringApplication.run(OrderApplication.class,args);
}
}
3.5 在order-server这个服务中心创建一个简单的http请求，用于后边服务进行feign调用
@RestController
public class OrderController {
@GetMapping("/getuuid")
public String getuuid(){
return UUID.randomUUID().toString();
}
}
4. 创建新的 monitor-server 微服务用feign调用上边的订单服务
4.1 创建一个maven项目，同1.1步骤一样，这里忽略
4.2 monitor-server的pom.xml引入依赖
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<parent>
<artifactId>spring-cloudartifactId>
<groupId>org.examplegroupId>
<version>1.0-SNAPSHOTversion>
parent>
<modelVersion>4.0.0modelVersion>
<artifactId>monitor-serverartifactId>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloudgroupId>
<artifactId>spring-cloud-dependenciesartifactId>
<version>${spring-cloud-dependencies.version}version>
<type>pomtype>
<scope>importscope>
dependency>
<dependency>
<groupId>org.springframework.bootgroupId>
<artifactId>spring-boot-dependenciesartifactId>
<version>${spring-boot-dependencies.version}version>
<type>pomtype>
<scope>importscope>
dependency>
dependencies>
dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.bootgroupId>
<artifactId>spring-boot-starter-webartifactId>
dependency>
<dependency>
<groupId>org.springframework.cloudgroupId>
<artifactId>spring-cloud-starter-netflix-eureka-clientartifactId>
dependency>
<dependency>
<groupId>org.springframework.cloudgroupId>
<artifactId>spring-cloud-starter-openfeignartifactId>
dependency>
<dependency>
<groupId>org.springframework.cloudgroupId>
<artifactId>spring-cloud-starter-netflix-hystrixartifactId>
dependency>
<dependency>
<groupId>org.projectlombokgroupId>
<artifactId>lombokartifactId>
dependency>
dependencies>
<build>
<finalName>monitorfinalName>
<plugins>
<plugin>
<groupId>org.springframework.bootgroupId>
<artifactId>spring-boot-maven-pluginartifactId>
<executions>
<execution>
<goals>
<goal>repackagegoal>
goals>
execution>
executions>
plugin>
plugins>
build>
project>
4.3 创建application.yml文件
server:
port: 8021
spring:
application:
name: monitor-server01
eureka:
client:
service-url:
defaultZone: ${EUREKA_URL:http://127.0.0.1:8001/eureka/}
feign:
circuitbreaker: ##开启服务熔断
enabled: true
hystrix:
enabled: true
httpclient:
connection-timeout: 5000
client:
default:
connectTimeout: 5000
readTimeout: 5000
4.4 创建feign调用类
@FeignClient(value = "ORDER-SERVER01",fallback = OrderFeignHystrix.class)
public interface OrderFeignServer {
@GetMapping("/getuuid")
String getuuid();
}
4.5 创建Hystrix熔断器
@Component
public class OrderFeignHystrix implements OrderFeignServer {
public String getuuid() {
return "微服务调用失败";
}
}
4.6 创建Controller控制器
@RestController
public class OrderController {
@Autowired
private OrderFeignServer orderFeignServer;
@GetMapping("/getuuid")
public String getuuid(){
return orderFeignServer.getuuid();
}
}
4.7 创建主启动类 并启动，使用 feign 调用 order-server 服务
@SpringBootApplication
@EnableEurekaClient
@EnableFeignClients
@EnableHystrix
public class MonitorApplication {
public static void main(String[] args) {
SpringApplication.run(MonitorApplication.class,args);
}
}
5. 使用 zuul 创建网关服务 zuul-server
5.1 创建一个maven项目，同1.1步骤一样，这里忽略
5.2 zuul-server 的pom.xml引入依赖
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<parent>
<artifactId>spring-cloudartifactId>
<groupId>org.examplegroupId>
<version>1.0-SNAPSHOTversion>
parent>
<modelVersion>4.0.0modelVersion>
<artifactId>zuul-serverartifactId>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloudgroupId>
<artifactId>spring-cloud-dependenciesartifactId>
<version>${spring-cloud-dependencies.version}version>
<type>pomtype>
<scope>importscope>
dependency>
<dependency>
<groupId>org.springframework.bootgroupId>
<artifactId>spring-boot-dependenciesartifactId>
<version>${spring-boot-dependencies.version}version>
<type>pomtype>
<scope>importscope>
dependency>
dependencies>
dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.bootgroupId>
<artifactId>spring-boot-starter-webartifactId>
dependency>
<dependency>
<groupId>org.springframework.cloudgroupId>
<artifactId>spring-cloud-starter-netflix-zuulartifactId>
dependency>
<dependency>
<groupId>org.springframework.cloudgroupId>
<artifactId>spring-cloud-starter-netflix-eureka-clientartifactId>
dependency>
<dependency>
<groupId>io.springfoxgroupId>
<artifactId>springfox-swagger2artifactId>
<version>2.9.2version>
dependency>
<dependency>
<groupId>io.springfoxgroupId>
<artifactId>springfox-swagger-uiartifactId>
<version>2.9.2version>
dependency>
dependencies>
<build>
<finalName>zuulfinalName>
<plugins>
<plugin>
<groupId>org.springframework.bootgroupId>
<artifactId>spring-boot-maven-pluginartifactId>
<executions>
<execution>
<goals>
<goal>repackagegoal>
goals>
execution>
executions>
<configuration>
<includeSystemScope>trueincludeSystemScope>
configuration>
plugin>
<plugin>
<groupId>org.apache.maven.pluginsgroupId>
<artifactId>maven-surefire-pluginartifactId>
<configuration>
<skipTests>trueskipTests>
configuration>
plugin>
plugins>
build>
project>
5.3 创建application.yml文件
server:
port: 9001
spring:
application:
name: zuul-server
eureka:
client:
service-url:
defaultZone: ${EUREKA_URL:http://127.0.0.1:8001/eureka/}
zuul:
prefix: /api ##给所有通过网关访问的接口前边增加路由
ignored-services: "*" ##忽略所有直接通过网关+微服务名称访问
5.4 创建刷新网关接口
@RestController
public class GatewayController {
@Autowired
private DiscoveryClient discoveryClient;
@Autowired
private ZuulProperties zuulProperties;
@GetMapping("/getApplicationName")
public List<String> getApplicationName(){
return discoveryClient.getServices();
}
@PostMapping("/refresh")
public void refreshZuul(@RequestBody Map<String, ZuulProperties.ZuulRoute> routes){
zuulProperties.setRoutes(routes);
}
}
5.5 创建主启动类
@SpringBootApplication
@EnableZuulProxy
@EnableDiscoveryClient
@EnableSwagger2
public class ZuulApplication {
public static void main(String[] args) {
SpringApplication.run(ZuulApplication.class,args);
}
}
5.6 刷新网关，使用网关调用微服务接口
