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spring cloud alibaba(3)基础-创建消费者

贾继涛 2019-03-11 2015人围观


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项目结构结构

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1.创建文件夹 hello-spring-cloud-alibaba-nacos-consumer 及pom.xml

<?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>
    <parent>
        <groupId>com.jjt</groupId>
        <artifactId>hello-spring-cloud-alibaba-dependencies</artifactId>
        <version>1.0.0-SNAPSHOT</version>
        <relativePath>../hello-spring-cloud-alibaba-dependencies/pom.xml</relativePath>
    </parent>
    <artifactId>hello-spring-cloud-alibaba-nacos-consumer</artifactId>
    <packaging>jar</packaging>
    <name>hello-spring-cloud-alibaba-nacos-consumer</name>
    <url>http://www.jiajitao.com</url>
    <inceptionYear>2019-Now</inceptionYear>
    <dependencies>
        <!-- Spring Boot Begin -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-actuator</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
        <!-- Spring Boot End -->
        <!-- Spring Cloud Begin -->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
        </dependency>
        <!-- Spring Cloud End -->
    </dependencies>
    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <configuration>
                    <mainClass>com.jjt.hello.spring.cloud.alibaba.nacos.consumer.NacosConsumerApplication</mainClass>
                </configuration>
            </plugin>
        </plugins>
    </build>
</project>


2.application


package com.jjt.hello.spring.cloud.alibaba.nacos.consumer;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
@SpringBootApplication
@EnableDiscoveryClient
public class NacosConsumerApplication {
    public static void main(String[] args) {
        SpringApplication.run(NacosConsumerApplication.class,args);
    }
}


3.config

package com.jjt.hello.spring.cloud.alibaba.nacos.consumer.config;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.client.RestTemplate;
@Configuration
public class NacosConsumerConfiguration {
    @Bean
    public RestTemplate restTemplate(){
        return new RestTemplate();
    }
}


4.controller


package com.jjt.hello.spring.cloud.alibaba.nacos.consumer.controller;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.cloud.client.ServiceInstance;
import org.springframework.cloud.client.loadbalancer.LoadBalancerClient;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.client.RestTemplate;
@RestController
public class NacosConsumerController {
    @Autowired
    private LoadBalancerClient loadBalancerClient;
    @Autowired
    private RestTemplate restTemplate;
    @Value("${spring.application.name}")
    private String appName;
    //http://127.0.0.1:9091/c/app
    //http://localhost:9091/actuator/nacos-discovery
    @GetMapping("/c/app")
    public String hello(){
        ServiceInstance serviceInstance =loadBalancerClient.choose("nacos-provider");
        String url = String.format("http://%s:%s/h/%s", serviceInstance.getHost(), serviceInstance.getPort(), appName);
        return restTemplate.getForObject(url, String.class);
    }
}


5.application.yml

spring:
  application:
    name: nacos-consumer
  cloud:
    nacos:
      discovery:
        server-addr: 192.168.102.130:8848
server:
  port: 9091
management:
  endpoints:
    web:
      exposure:
        include: "*"


源码地址

 https://gitee.com/jiajitao/Spring-Cloud-Ali


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