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0.9.0.RELEASE版本的spring cloud alibaba nacos+feign实例

时间:2019-08-22 11:15:46      阅读:141      评论:0      收藏:0      [点我收藏+]

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  这里的feign依然是原来的feign,只不过将注册中心由eureka换成了nacos。服务提供方参见0.9.0.RELEASE版本的spring cloud alibaba nacos实例,消费方跟提供方一样,只需加入feign的相关内容即可。抡出三板斧:

  1、pom加入feign:

<?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>com.wlf</groupId>
    <artifactId>lxytrans-application-consumer</artifactId>
    <version>0.0.1-SNAPSHOT</version>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.1.7.RELEASE</version>
    </parent>

    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-dependencies</artifactId>
                <version>Greenwich.SR2</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-alibaba-dependencies</artifactId>
                <version>0.9.0.RELEASE</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
        </dependencies>
    </dependencyManagement>

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

        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-openfeign</artifactId>
        </dependency>

        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <optional>true</optional>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>

</project>

  2、application同服务提供方,只需注册到nacos即可:

#端口
server.port=8383
#应用名
spring.application.name=lxytrans-consumer
#注册中心
spring.cloud.nacos.discovery.server-addr=localhost:8848

  3、启动类中加入注解@EnableFeignClients,引入服务提供方接口,并通过注解指向服务提供方服务实例@FeignClient("lxytrans-provider"):

import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
import org.springframework.cloud.openfeign.EnableFeignClients;
import org.springframework.cloud.openfeign.FeignClient;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;

@EnableFeignClients
@EnableDiscoveryClient
@SpringBootApplication
public class TransConsumerApplication {

    public static void main(String[] args) {
        SpringApplication.run(TransConsumerApplication.class, args);
    }

    @Slf4j
    @RestController
    static class TestController {

        @Autowired
        private ApplicationApi applicationApi;

        @GetMapping("/sayhello")
        public String sayhello() {
            return "say: " + applicationApi.hello();
        }

    }

    @FeignClient("lxytrans-provider")
    interface ApplicationApi {

        @GetMapping("/hello")
        String hello();

    }

}

  消费者跑起来后可在nacos中看到:

技术图片

  通过消费方调用提供方:

技术图片

 

0.9.0.RELEASE版本的spring cloud alibaba nacos+feign实例

标签:main   ref   tap   public   build   bind   VID   snapshot   cti   

原文地址:https://www.cnblogs.com/wuxun1997/p/11392772.html

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