spring-boot integration dubbo start demo

References:

1, spring boot configuration

https://docs.spring.io/spring-boot/docs/2.1.7.RELEASE/reference/html/getting-started-installing-spring-boot.html#getting-started-maven-installation

Configuring maven

<?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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>com.example</groupId>
    <artifactId>myproject</artifactId>
    <version>0.0.1-SNAPSHOT</version>

    <!-- Inherit defaults from Spring Boot -->
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.1.7.RELEASE</version>
    </parent>

    <!-- Add typical dependencies for a web application -->
    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
    </dependencies>

    <!-- Package as an executable jar -->
    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>

</project>

java code:

https://docs.spring.io/spring-boot/docs/2.1.7.RELEASE/reference/html/getting-started-first-application.html#getting-started-first-application-run

import org.springframework.boot.*;
import org.springframework.boot.autoconfigure.*;
import org.springframework.web.bind.annotation.*;

@RestController
@EnableAutoConfiguration
public class Example {

	@RequestMapping("/")
	String home() {
		return "Hello World!";
	}

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

}

　　Here spring-boot web application build better;

2, integration dubbo

　　2.1, ready zk (zookeeper) environment

　　　　Official website to download ZK: https://zookeeper.apache.org/releases.html

　　　　After downloading unzip to a local directory;

　　　　Edit and configure zoo.cfg file (zk directory /config/zoo.cfg)

tickTime=2000
initLimit=10
syncLimit=5
dataDir=E:\zk\zookeeper-3.4.9\datas
clientPort=2181

　　　　Execute bin / zkServer.cmd start zk Service

　　　　ps: Here is ready zk environment, and if you want to visually see zk node directory information and can use the tool https://github.com/DeemOpen/zkui view, java realize, after mvn package that is executed by java -jar accessible;

　　2.2, dubbo configuration

　　　　As used herein dubbo project launcher under apache project (alibaba starter is no longer maintained, not recommended)

　　　　At this point the project maven dependent:

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

        <!-- 解决 java.lang.NoClassDefFoundError: org/apache/curator/framework/recipes/cache/TreeCacheListener 问题 -->
        <dependency>
            <groupId>org.apache.curator</groupId>
            <artifactId>curator-recipes</artifactId>
            <version>2.8.0</version>
        </dependency>

        <dependency>
            <groupId>org.apache.dubbo</groupId>
            <artifactId>dubbo-spring-boot-starter</artifactId>
            <version>2.7.3</version>
        </dependency>
    </dependencies>

　　New services and service implementation

package cn.jsu.wyk.service.impl;

import cn.jsu.wyk.service.PayService;
import com.alibaba.dubbo.config.annotation.Service;

@Service(version = "1.0.0")
public class PayServiceImpl implements PayService {

  public String pay(){
    return "pay success";
  }
}

　　Increased use global parameters application.properties

server.port=8081

## Dubbo 服务提供者配置
spring.application.name=dubbo-spring-boot-starter
dubbo.registry.address=zookeeper://localhost:2181
dubbo.protocol.name=dubbo
dubbo.protocol.port=20880
dubbo.scan.base-packages=cn.jsu.wyk.service

　　Thus configured, start the test, can be seen in zkui registration service that is done

spring-boot integration dubbo start demo

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