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ss-4.2 多个eureka集群案例
cloud-eureka-server7001
2个服务 2个提供器 1个消费者 http://127.0.0.1:8001/actuator/health //查看当前服务状态 http://127.0.0.1:8001/payment/discovery 发现服务
│ pom.xml │ ├─src │ ├─main │ │ ├─java │ │ │ └─com │ │ │ └─cmk │ │ │ └─springCloud │ │ │ EurekaMain7001.java //jetbrains://idea/navigate/reference?project=zy2020&path=com/cmk/springCloud/EurekaMain7001.java:12:1 │ │ │ │ │ └─resources │ │ application.yml- 1
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pom.xml
<dependencies> <dependency> <groupId>org.springframework.cloudgroupId> <artifactId>spring-cloud-starter-netflix-eureka-serverartifactId> dependency> <dependency> <groupId>org.cmk.springcoloudgroupId> <artifactId>cloud-api-commonsartifactId> <version>${project.version}version> dependency> <dependency> <groupId>org.springframework.bootgroupId> <artifactId>spring-boot-starter-webartifactId> dependency> <dependency> <groupId>org.springframework.bootgroupId> <artifactId>spring-boot-starter-actuatorartifactId> dependency> <dependency> <groupId>org.springframework.bootgroupId> <artifactId>spring-boot-devtoolsartifactId> <scope>runtimescope> <optional>trueoptional> dependency> <dependency> <groupId>org.projectlombokgroupId> <artifactId>lombokartifactId> <optional>trueoptional> dependency> <dependency> <groupId>org.springframework.bootgroupId> <artifactId>spring-boot-starter-testartifactId> <scope>testscope> dependency> dependencies>- 1
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EurekaMain7001.java
@SpringBootApplication @EnableEurekaServer public class EurekaMain7001 { public static void main(String[] args) { SpringApplication.run(EurekaMain7001.class,args); } }- 1
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application.yml
server: port: 7001 eureka: instance: hostname: eureka7001.com #eureka服务端的实例名称 client: register-with-eureka: false #false表示不向注册中心注册自己 fetch-registry: false #false表示自己端就是注册中心,我的职责就是维护服务实例,并不需要去检索服务 service-url: #设置与Eureka server交互的地址查询服务和注册服务都需要依赖这个地址 defaultZone: http://eureka7002.com:7002/eureka/- 1
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cloud-eureka-server7002
│ pom.xml │ ├─src │ ├─main │ │ ├─java │ │ │ └─com │ │ │ └─cmk │ │ │ └─springCloud │ │ │ EurekaMain7002.java //jetbrains://idea/navigate/reference?project=zy2020&path=com/cmk/springCloud/EurekaMain7002.java:14:1 │ │ │ │ │ └─resources │ │ application.yml- 1
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pom.xml
<dependencies> <dependency> <groupId>org.springframework.cloudgroupId> <artifactId>spring-cloud-starter-netflix-eureka-serverartifactId> dependency> <dependency> <groupId>org.cmk.springcoloudgroupId> <artifactId>cloud-api-commonsartifactId> <version>${project.version}version> dependency> <dependency> <groupId>org.springframework.bootgroupId> <artifactId>spring-boot-starter-webartifactId> dependency> <dependency> <groupId>org.springframework.bootgroupId> <artifactId>spring-boot-starter-actuatorartifactId> dependency> <dependency> <groupId>org.springframework.bootgroupId> <artifactId>spring-boot-devtoolsartifactId> <scope>runtimescope> <optional>trueoptional> dependency> <dependency> <groupId>org.projectlombokgroupId> <artifactId>lombokartifactId> <optional>trueoptional> dependency> <dependency> <groupId>org.springframework.bootgroupId> <artifactId>spring-boot-starter-testartifactId> <scope>testscope> dependency> dependencies>- 1
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EurekaMain7002.java
@SpringBootApplication @EnableEurekaServer public class EurekaMain7002 { public static void main(String[] args) { SpringApplication.run(EurekaMain7002.class,args); } }- 1
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application.yml
server: port: 7002 eureka: instance: hostname: eureka7002.com #eureka服务端的实例名称 client: register-with-eureka: false #false表示不向注册中心注册自己 fetch-registry: false #false表示自己端就是注册中心,我的职责就是维护服务实例,并不需要去检索服务 service-url: #设置与Eureka server交互的地址查询服务和注册服务都需要依赖这个地址 defaultZone: http://eureka7001.com:7001/eureka/- 1
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cloud-provider-payment8001
│ pom.xml │ ├─src │ ├─main │ │ ├─java │ │ │ └─com │ │ │ └─cmk │ │ │ └─springCloud │ │ │ │ PaymentMain8001.java //jetbrains://idea/navigate/reference?project=zy2020&path=com/cmk/springCloud/PaymentMain8001.java:14:1 │ │ │ │ │ │ │ ├─controller │ │ │ │ PaymentController.java │ │ │ │ │ │ │ ├─dao │ │ │ │ PaymentDao.java │ │ │ │ │ │ │ └─service │ │ │ │ PaymentService.java │ │ │ │ │ │ │ └─impl │ │ │ PaymentServiceImpl.java │ │ │ │ │ └─resources │ │ │ application.yml │ │ │ │ │ └─mapper │ │ PaymentMapper.xml- 1
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pom.xml
<dependencies> <dependency> <groupId>org.springframework.cloudgroupId> <artifactId>spring-cloud-starter-netflix-eureka-clientartifactId> dependency> <dependency> <groupId>org.cmk.springcoloudgroupId> <artifactId>cloud-api-commonsartifactId> <version>${project.version}version> dependency> <dependency> <groupId>org.springframework.bootgroupId> <artifactId>spring-boot-starter-webartifactId> dependency> <dependency> <groupId>org.springframework.bootgroupId> <artifactId>spring-boot-starter-actuatorartifactId> dependency> <dependency> <groupId>com.alibabagroupId> <artifactId>druid-spring-boot-starterartifactId> <version>1.1.10version> dependency> <dependency> <groupId>mysqlgroupId> <artifactId>mysql-connector-javaartifactId> dependency> <dependency> <groupId>org.springframework.bootgroupId> <artifactId>spring-boot-starter-jdbcartifactId> dependency> <dependency> <groupId>org.springframework.bootgroupId> <artifactId>spring-boot-devtoolsartifactId> <scope>runtimescope> <optional>trueoptional> dependency> <dependency> <groupId>org.mybatis.spring.bootgroupId> <artifactId>mybatis-spring-boot-starterartifactId> dependency> <dependency> <groupId>org.springframework.bootgroupId> <artifactId>spring-boot-starter-testartifactId> dependency> dependencies>- 1
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PaymentMain8001.java
@SpringBootApplication @EnableEurekaClient @EnableDiscoveryClient public class PaymentMain8001 { public static void main(String[] args) { SpringApplication.run(PaymentMain8001.class,args); } }- 1
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PaymentController.java
@RestController @Slf4j public class PaymentController { @Value("${server.port}") private String serverPort; @Resource private DiscoveryClient discoveryClient; @Resource private PaymentService paymentService; @PostMapping("/payment/create") public CommonResult create(@RequestBody Payment payment){ int result = paymentService.create(payment); log.info("****插入结果"+result); if (result>0){ return new CommonResult(200,"插入数据库成功,服务端口:"+serverPort,result); }else{ return new CommonResult(400,"插入数据库失败",null); } } @GetMapping("/payment/get/{id}") public CommonResult getPaymentById(@PathVariable("id") long id){ Payment result = paymentService.getPaymentById(id); log.info("****查询结果"+result+"456"); if (result !=null){ return new CommonResult(200,"查询数据库成功,服务端口:"+serverPort,result); }else{ return new CommonResult(400,"查询数据库失败",null); } } @GetMapping("/payment/discovery") public Object discovery(){ List<String> services = discoveryClient.getServices(); for (String element : services) { log.info("*****:"+element); } List<ServiceInstance> instances = discoveryClient.getInstances("CLOUD-PAYMENT-SERVICE"); for (ServiceInstance instance : instances) { log.info(instance.getServiceId()+"\t"+instance.getHost()+"\t"+instance.getPort()+"\t"+instance.getUri()); } return this.discoveryClient; } }- 1
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PaymentDao.java
@Mapper public interface PaymentDao { int create(Payment payment); Payment getPaymentById(@Param("id") long id); }- 1
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service
PaymentService.java
@Mapper public interface PaymentService { int create(Payment payment); Payment getPaymentById(@Param("id") long id); }- 1
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impl > PaymentServiceImpl.java
@Service public class PaymentServiceImpl implements PaymentService { @Resource private PaymentDao paymentDao; public int create(Payment payment){ return paymentDao.create(payment); } public Payment getPaymentById(@Param("id") long id){ return paymentDao.getPaymentById(id); } }- 1
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resources
application.yml
server: port: 8001 spring: application: name: cloud-payment-service datasource: type: com.alibaba.druid.pool.DruidDataSource driver-class-name: com.mysql.cj.jdbc.Driver url: jdbc:mysql://localhost:3306/test?useUnicode=true&characterEncoding=utf-8&serverTimezone=UTC username: root password: 123456 mybatis: mapper-locations: classpath:mapper/*.xml type-aliases-package: com.cmk.springCloud.entities eureka: client: #表示是否将自己注册进 EurekaServer默认为true register-with-eureka: true #是否从EurekaServer抓取已有的注册信息，默认为true。单节点无所谓，集群必须设置为true才能配合ribbon使用负载均衡 fetch-registry: true service-url: # defaultZone: http://localhost:7001/eureka defaultZone: http://eureka7001.com:7001/eureka,http://eureka7002.com:7002/eureka #集群版 instance: instance-id: payment8001 prefer-ip-address: true #访问路径可以显示IP地址- 1
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mapper > PaymentMapper.xml
DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd" > <mapper namespace="com.cmk.springCloud.service.PaymentService"> <insert id="create" parameterType="com.cmk.springCloud.entities.Payment"> insert into payment(serial) values (#{serial}); insert> <select id="getPaymentById" parameterType="long" resultMap="BaseResultMap"> select * from payment where id=#{id} select> <resultMap id="BaseResultMap" type="com.cmk.springCloud.entities.Payment"> <id column="id" property="id" jdbcType="BIGINT"/> <id column="serial" property="serial" jdbcType="VARCHAR"/> resultMap> mapper>- 1
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cloud-provider-payment8002
│ pom.xml │ ├─src │ ├─main │ │ ├─java │ │ │ └─com │ │ │ └─cmk │ │ │ └─springCloud │ │ │ │ PaymentMain8002.java //jetbrains://idea/navigate/reference?project=zy2020&path=com/cmk/springCloud/PaymentMain8002.java:13:1 │ │ │ │ │ │ │ ├─controller │ │ │ │ PaymentController.java │ │ │ │ │ │ │ ├─dao │ │ │ │ PaymentDao.java │ │ │ │ │ │ │ └─service │ │ │ │ PaymentService.java │ │ │ │ │ │ │ └─impl │ │ │ PaymentServiceImpl.java │ │ │ │ │ └─resources │ │ │ application.yml │ │ │ │ │ └─mapper │ │ PaymentMapper.xml- 1
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pom.xml
<dependencies> <dependency> <groupId>org.springframework.cloudgroupId> <artifactId>spring-cloud-starter-netflix-eureka-clientartifactId> dependency> <dependency> <groupId>org.cmk.springcoloudgroupId> <artifactId>cloud-api-commonsartifactId> <version>${project.version}version> dependency> <dependency> <groupId>org.springframework.bootgroupId> <artifactId>spring-boot-starter-webartifactId> dependency> <dependency> <groupId>org.springframework.bootgroupId> <artifactId>spring-boot-starter-actuatorartifactId> dependency> <dependency> <groupId>com.alibabagroupId> <artifactId>druid-spring-boot-starterartifactId> <version>1.1.10version> dependency> <dependency> <groupId>mysqlgroupId> <artifactId>mysql-connector-javaartifactId> dependency> <dependency> <groupId>org.springframework.bootgroupId> <artifactId>spring-boot-starter-jdbcartifactId> dependency> <dependency> <groupId>org.springframework.bootgroupId> <artifactId>spring-boot-devtoolsartifactId> <scope>runtimescope> <optional>trueoptional> dependency> <dependency> <groupId>org.mybatis.spring.bootgroupId> <artifactId>mybatis-spring-boot-starterartifactId> dependency> <dependency> <groupId>org.springframework.bootgroupId> <artifactId>spring-boot-starter-testartifactId> dependency> dependencies>- 1
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PaymentMain8002.java
@SpringBootApplication @EnableEurekaClient public class PaymentMain8002 { public static void main(String[] args) { SpringApplication.run(PaymentMain8002.class,args); } }- 1
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PaymentController.java
@RestController @Slf4j public class PaymentController { @Value("${server.port}") private String serverPort; @Resource private PaymentService paymentService; @PostMapping("/payment/create") public CommonResult create(@RequestBody Payment payment){ int result = paymentService.create(payment); log.info("****插入结果"+result); if (result>0){ return new CommonResult(200,"插入数据库成功,服务端口:"+serverPort,result); }else{ return new CommonResult(400,"插入数据库失败",null); } } @GetMapping("/payment/get/{id}") public CommonResult getPaymentById(@PathVariable("id") long id){ Payment result = paymentService.getPaymentById(id); log.info("****查询结果"+result+"456"); if (result !=null){ return new CommonResult(200,"查询数据库成功,服务端口:"+serverPort,result); }else{ return new CommonResult(400,"查询数据库失败",null); } } }- 1
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PaymentDao.java
@Mapper public interface PaymentDao { int create(Payment payment); Payment getPaymentById(@Param("id") long id); }- 1
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service
PaymentService.java
@Mapper public interface PaymentService { int create(Payment payment); Payment getPaymentById(@Param("id") long id); }- 1
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impl > PaymentServiceImpl.java
@Service public class PaymentServiceImpl implements PaymentService { @Resource private PaymentDao paymentDao; public int create(Payment payment){ return paymentDao.create(payment); } public Payment getPaymentById(@Param("id") long id){ return paymentDao.getPaymentById(id); } }- 1
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resources
application.yml
server: port: 8002 spring: application: name: cloud-payment-service datasource: type: com.alibaba.druid.pool.DruidDataSource driver-class-name: com.mysql.cj.jdbc.Driver url: jdbc:mysql://localhost:3306/test?useUnicode=true&characterEncoding=utf-8&serverTimezone=UTC username: root password: 123456 mybatis: mapper-locations: classpath:mapper/*.xml type-aliases-package: com.cmk.springCloud.entities eureka: client: #表示是否将自己注册进 EurekaServer默认为true register-with-eureka: true #是否从EurekaServer抓取已有的注册信息，默认为true。单节点无所谓，集群必须设置为true才能配合ribbon使用负载均衡 fetch-registry: true service-url: # defaultZone: http://localhost:7001/eureka defaultZone: http://eureka7001.com:7001/eureka,http://eureka7002.com:7002/eureka #集群版 instance: instance-id: payment8002 prefer-ip-address: true #访问路径可以显示IP地址- 1
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mapper > PaymentMapper.xml
DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd" > <mapper namespace="com.cmk.springCloud.service.PaymentService"> <insert id="create" parameterType="com.cmk.springCloud.entities.Payment"> insert into payment(serial) values (#{serial}); insert> <select id="getPaymentById" parameterType="long" resultMap="BaseResultMap"> select * from payment where id=#{id} select> <resultMap id="BaseResultMap" type="com.cmk.springCloud.entities.Payment"> <id column="id" property="id" jdbcType="BIGINT"/> <id column="serial" property="serial" jdbcType="VARCHAR"/> resultMap> mapper>- 1
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com-consumer-order80
│ pom.xml │ ├─src │ ├─main │ │ ├─java │ │ │ └─com │ │ │ └─cmk │ │ │ └─consumerOrder80 │ │ │ │ OrderMain80.java //jetbrains://idea/navigate/reference?project=zy2020&path=com/cmk/consumerOrder80/OrderMain80.java:13:1 │ │ │ │ │ │ │ ├─config │ │ │ │ ApplicationContextConfig.java │ │ │ │ │ │ │ └─controller │ │ │ OrderController.java │ │ │ │ │ └─resources │ │ application.yml- 1
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pom.xml
<dependencies> <dependency> <groupId>org.springframework.cloudgroupId> <artifactId>spring-cloud-starter-netflix-eureka-clientartifactId> dependency> <dependency> <groupId>org.cmk.springcoloudgroupId> <artifactId>cloud-api-commonsartifactId> <version>${project.version}version> dependency> <dependency> <groupId>org.springframework.bootgroupId> <artifactId>spring-boot-starter-webartifactId> dependency> <dependency> <groupId>org.springframework.bootgroupId> <artifactId>spring-boot-starter-actuatorartifactId> dependency> <dependency> <groupId>org.springframework.bootgroupId> <artifactId>spring-boot-starter-testartifactId> dependency> <dependency> <groupId>org.springframework.bootgroupId> <artifactId>spring-boot-devtoolsartifactId> <scope>runtimescope> <optional>trueoptional> dependency> dependencies>- 1
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OrderMain80.java
@SpringBootApplication @EnableEurekaClient public class OrderMain80 { public static void main(String[] args) { SpringApplication.run(OrderMain80.class,args); } }- 1
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ApplicationContextConfig.java
@Configuration public class ApplicationContextConfig { @Bean @LoadBalanced //使用@Loaibalanced注解赋予RestTemplate负载均衡的能力 public RestTemplate getRestTemplate(){ return new RestTemplate(); } }- 1
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OrderController.java
@RestController @Slf4j public class OrderController { // public static final String PAYMENT_URL = "http://localhost:8001"; public static final String PAYMENT_URL = "http://CLOUD-PAYMENT-SERVICE"; @Resource private RestTemplate restTemplate; @GetMapping("/consumer/payment/create") public CommonResult<Payment> create(Payment payment){ System.out.println(payment); return restTemplate.postForObject(PAYMENT_URL+"/payment/create",payment,CommonResult.class); } @GetMapping("consumer/payment/get/{id}") public CommonResult getPayment(@PathVariable("id") long id){ return restTemplate.getForObject(PAYMENT_URL+"/payment/get/"+id,CommonResult.class); } }- 1
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application.yml
server: port: 80 spring: application: name: cloud-order-service eureka: client: register-with-eureka: true fetch-registry: true service-url: # defaultZone: http://localhost:7001/eureka defaultZone: http://eureka7001.com:7001/eureka,http://eureka7002.com:7002/eureka- 1
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- 原文地址：https://blog.csdn.net/lhorse003/article/details/126034560
