我正在使用领事作为服务发现实现来学习Spring Cloud,我遵循了互联网上的教程。我正在使用Eclipse和Maven。 pom文件由 Spring Initializr 生成。从春季官方文档中,他们说不再需要“ @EnableDiscoveryClient”,因此我对此进行了评论,但是这种注释没有什么区别。
我的代码如下:
package org.codingfarm.ailurus;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
@SpringBootApplication
//@CONFIGURATION
//@ENABLEAUTOCONFIGURATION
//@EnableDiscoveryClient
@RestController
public class AccountsApplication {
@RequestMapping("/")
public String home() {
return "Hello World";
}
public static void main(String[] args) {
SpringApplication.run(AccountsApplication.class, args);
}
}
maven pom:
<?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>org.codingfarm.ailurus</groupId>
<artifactId>ailurus-accounts</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<name>ailurus-accounts</name>
<description>账户服务</description>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.0.5.RELEASE</version>
<relativePath /> <!-- lookup parent from repository -->
</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-task.version>2.0.0.RELEASE</spring-cloud-task.version>
<spring-cloud.version>Finchley.SR1</spring-cloud.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-cache</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-freemarker</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-jersey</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-security</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-validation</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<!-- <dependency> -->
<!-- <groupId>org.springframework.boot</groupId> -->
<!-- <artifactId>spring-boot-starter-integration</artifactId> -->
<!-- </dependency> -->
<!-- <dependency> -->
<!-- <groupId>org.springframework.cloud</groupId> -->
<!-- <artifactId>spring-cloud-stream-binder-kafka-core</artifactId> -->
<!-- </dependency> -->
<!-- <dependency> -->
<!-- <groupId>org.springframework.cloud</groupId> -->
<!-- <artifactId>spring-cloud-stream-binder-kafka</artifactId> -->
<!-- </dependency> -->
<!-- <dependency> -->
<!-- <groupId>org.springframework.boot</groupId> -->
<!-- <artifactId>spring-boot-starter-webflux</artifactId> -->
<!-- </dependency> -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-websocket</artifactId>
</dependency>
<!-- <dependency> -->
<!-- <groupId>org.apache.kafka</groupId> -->
<!-- <artifactId>kafka-streams</artifactId> -->
<!-- </dependency> -->
<dependency>
<groupId>org.mybatis.spring.boot</groupId>
<artifactId>mybatis-spring-boot-starter</artifactId>
<version>1.3.2</version>
</dependency>
<!-- <dependency> -->
<!-- <groupId>org.springframework.cloud</groupId> -->
<!-- <artifactId>spring-cloud-bus</artifactId> -->
<!-- </dependency> -->
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-consul-config</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-consul-discovery</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-hystrix</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-commons</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-hystrix-dashboard</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-turbine</artifactId>
</dependency>
<!-- <dependency> -->
<!-- <groupId>org.springframework.cloud</groupId> -->
<!-- <artifactId>spring-cloud-starter-netflix-turbine-stream</artifactId> -->
<!-- </dependency> -->
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-zuul</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-oauth2</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-security</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-task</artifactId>
</dependency>
<!-- <dependency> -->
<!-- <groupId>org.springframework.cloud</groupId> -->
<!-- <artifactId>spring-cloud-stream</artifactId> -->
<!-- </dependency> -->
<!-- <dependency> -->
<!-- <groupId>org.springframework.cloud</groupId> -->
<!-- <artifactId>spring-cloud-stream-binder-kafka</artifactId> -->
<!-- </dependency> -->
<!-- <dependency> -->
<!-- <groupId>org.springframework.cloud</groupId> -->
<!-- <artifactId>spring-cloud-stream-binder-kafka-streams</artifactId> -->
<!-- </dependency> -->
<!-- <dependency> -->
<!-- <groupId>org.springframework.kafka</groupId> -->
<!-- <artifactId>spring-kafka</artifactId> -->
<!-- </dependency> -->
<!-- <dependency> -->
<!-- <groupId>mysql</groupId> -->
<!-- <artifactId>mysql-connector-java</artifactId> -->
<!-- <scope>runtime</scope> -->
<!-- </dependency> -->
<dependency>
<groupId>com.h2database</groupId>
<artifactId>h2</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>io.projectreactor</groupId>
<artifactId>reactor-test</artifactId>
<scope>test</scope>
</dependency>
<!-- <dependency> -->
<!-- <groupId>org.springframework.cloud</groupId> -->
<!-- <artifactId>spring-cloud-stream-test-support</artifactId> -->
<!-- <scope>test</scope> -->
<!-- </dependency> -->
<dependency>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-task-dependencies</artifactId>
<version>${spring-cloud-task.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>${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>
我使用以下命令启动了领事服务器:
./consul agent -server -bootstrap-expect=1 -data-dir=/tmp/consul -ui -bind=127.0.0.1
但是当我将其作为spring boot应用程序运行时,它只是从未向领事注册我的服务,我错过了什么吗?
答案 0 :(得分:1)
试图与您的pom.xml
启动应用程序。失败并显示下一条消息:
***************************
APPLICATION FAILED TO START
***************************
Description:
Field registration in org.springframework.cloud.client.serviceregistry.ServiceRegistryAutoConfiguration$ServiceRegistryEndpointConfiguration required a single bean, but 2 were found:
- eurekaRegistration: defined in BeanDefinition defined in class path resource [org/springframework/cloud/netflix/eureka/EurekaClientAutoConfiguration$RefreshableEurekaClientConfiguration.class]
- consulRegistration: defined by method 'consulRegistration' in class path resource [org/springframework/cloud/consul/serviceregistry/ConsulAutoServiceRegistrationAutoConfiguration.class]
您需要通过从pom.xml
删除依赖项来禁用Eureka发现客户端:
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-turbine</artifactId>
</dependency>
因为它加载了spring-cloud-starter-netflix-eureka-client
依赖关系,其中包含Eureka注册的实现。