caffeine

1.eureka:
创建eureka项目父子工程pom文件分别是什么样的:
父工程 pom.xml（打包方式：pom）
<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.example</groupId>
    <artifactId>springcloud-eureka-parent</artifactId>
    <version>1.0.0</version>
    <packaging>pom</packaging>

    <modules>
        <module>eureka-server</module>
        <module>eureka-client</module>
    </modules>

    <!-- 统一依赖版本管理 -->
    <dependencyManagement>
        <dependencies>

            <!-- Spring Boot -->
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-dependencies</artifactId>
                <version>2.3.12.RELEASE</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>

            <!-- Spring Cloud Hoxton (Eureka 兼容版本) -->
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-dependencies</artifactId>
                <version>Hoxton.SR12</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>

        </dependencies>
    </dependencyManagement>

    <properties>
        <java.version>1.8</java.version>
    </properties>

</project>
-----------------
<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>com.example</groupId>
        <artifactId>springcloud-eureka-parent</artifactId>
        <version>1.0.0</version>
    </parent>

    <artifactId>eureka-server</artifactId>

    <dependencies>
        <!-- Eureka Server -->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-netflix-eureka-server</artifactId>
        </dependency>

        <!-- Web 依赖 -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
    </dependencies>

</project>
--------
启动类上添加注解@EnableEurekaServer
--------
yml文件中添加配置:
server:
  port: 10086 # 服务端口
spring:
  application:
    name: eureka-server # eureka服务名称
eureka:
  client:
    service-url: #eureka服务地址
      defaultZone: http://localhost:10086/eureka/
-----------------------------------------------------
2.nacos
  1.导入依赖:
   <!--nacos依赖-->
            <dependency>
                <groupId>com.alibaba.cloud</groupId>
                <artifactId>spring-cloud-alibaba-dependencies</artifactId>
                <version>2023.0.1.0</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
  2.子工程引用
  <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
        </dependency>
  3.配置:
spring:
  application:
    name: eureka-server # 服务名称
  cloud:
    nacos:
      server-addr: localhost:8848
	  
  4.给服务配置所属集群:
spring:
  application:
    name: nacos-server # 服务名称
  cloud:
    nacos:
      server-addr: localhost:8848
      discovery:
        cluster-name: HZ
   5.
--------------------------------------------
3.网关gateway
  1.引入依赖
   <!--nacos服务注册依赖-->
        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
        </dependency>
        <!--网关gateway依赖-->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-gateway</artifactId>
        </dependency>
  2.编写配置及nacos地址
server:
  port: 10010
spring:
  application:
    name: gateway  #网关服务名称
  cloud:
    nacos:
      server-addr: localhost:8848 #nacos地址
    gateway:
      routes: #路由规则,可以配置多个
        - id: user-service #路由标识,必须唯一 ,可以看作单个服务的包名
          uri: lb://userservice #路由目标地址 ,就是微服务中@feignClient的value值
          predicates: #路由断言,判断路径是否符合规则
            - Path=/user/** #路径断言,判断路径是否以/user开头
        - id: order-service
          uri: lb://orderservice
          predicates:
            - Path=/order/**