SpringCloud-Nacos 下载安装

怼烎@ 2022-12-28 07:49 175阅读 1赞

## SpringCloud-Nacos 下载安装 ##

### 下载网址 https://github.com/alibaba/nacos ###

> Linux 安装包

### Nacos启动闪退问题 ###

注意 nacos1.3.2的启动配置默认是集群模式
    编辑startup.cmd
    set MODE="standalone"

> 引用 https://blog.csdn.net/g936795350/article/details/108383645

### Nacos启动报错 ###

### jdk环境变量 ###

JAVA_HOME 要配置jdk1.8

### 启动Nacos ###

运行startup.cmd

### SpringCloud 搭建Nacos 配置中心 ###

<dependency>
                <groupId>com.alibaba.cloud</groupId>
                <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
                <version>2.2.1.RELEASE</version>
            </dependency>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-web</artifactId>
            </dependency>
    
    	 <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>
                <dependency>
                    <groupId>com.alibaba.cloud</groupId>
                    <artifactId>spring-cloud-alibaba-dependencies</artifactId>
                    <version>2.1.0.RELEASE</version>
                    <type>pom</type>
                    <scope>import</scope>
                </dependency>
            </dependencies>
        </dependencyManagement>

### 创建nacos-priovider ###

#### 在SpringCloud 下创建Module ####

> POM 中添加

<dependency>
             	<groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-web</artifactId>
            </dependency>

### yml ###

server:
      port: 8081  #指定为8081端口
    
    spring:
      application:
        name: nacos  #服务名
      cloud:
        nacos:
          discovery:
            register-enabled: true
            weight: 1
            server-addr: 127.0.0.1:8848 #服务注册地址(nacos默认为8848端口)

### 启动类application ###

### defining a bean of type ‘com.netflix.client.config.IClientConfig’ in your configuration ###

### 启动类要和其它文件放在同一目录下，否则报以上问题 ###

@SpringBootApplication
    @EnableDiscoveryClient
    public class NacosApplication { 
    
        public static void main(String[] args) { 
            SpringApplication.run(NacosApplication.class, args);
        }
    
    }

@RestController
    @RequestMapping("/nacos")
    public class EchoController { 
        @GetMapping(value = "/hello/{str}", produces = "application/json")
        public String hello(@PathVariable String str) { 
            String result = "hello==>" + str;
            return result;
        }
    }

### 创建nacos-consumer ###

#### 在SpringCloud 下创建Module ####

> POM 中添加 步骤同nacos-priovider

<dependency>
             	<groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-web</artifactId>
            </dependency>

### YML ###

server:
      port: 8082  #指定为8082端口
    
    spring:
      application:
        name: nacos-consumer  #服务名
      cloud:
        nacos:
          discovery:
            register-enabled: true
            weight: 1
            server-addr: 127.0.0.1:8848 #服务注册地址(nacos默认为8848端口)

### NacosConsumerApplication 启动类 ###

@SpringBootApplication
    @EnableDiscoveryClient
    public class NacosConsumerApplication { 
    
        public static void main(String[] args) { 
            SpringApplication.run(NacosConsumerApplication.class, args);
        }
        @LoadBalanced
        @Bean
        public RestTemplate restTemplate(){ 
            return new RestTemplate();
        }
    }

### NacosConsumerController 控制类 ###

@RestController
    public class NacosConsumerController { 
        @Autowired
        RestTemplate restTemplate;
    
        @GetMapping("/hello")
        public String hiResttemplate(){ 
            return restTemplate.getForObject("http://nacos-priovider/hello/asd?name=resttemplate",String.class);
    
        }
    }