spring boot +dubbo+zookeeper

dubbo是一个分布式服务框架,致力于提供高性能和透明化的RPC远程服务调用方案,以及SOA服务治理方案。

结合本公司的开发也是用的dubbo这款优秀的框架，加上最近工作重心的。所以对于dubbo的学习已经是迫在眉睫了。

在中秋假期，抽空实战了一把基于spring boot +dubbo+zookeeper 。其中也遇到了很多的坑。

在这里记录一下。

我们看下dubbo的官网。http://dubbo.apache.org/en-us/ 。这里不在做赘述。

我们开始上手去实战一个初步的demo。用实战的角度去学习他。

在官网上也给我们了例子。

我们按照官网去实现它

首先我们去搭建zookeeper。之所以选择zookeeper 我感觉还是资料多吧。

我们去下载zookeeper 然后启动就可以。

我这里用的是服务模式启动的。所以我在项目中用的是3000的端口

我们去常见一个通用的api

package com.example.demo;

import org.springframework.boot.SpringApplication;

import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication

public class DemoApplication {

    public static void main(String[] args) {

        SpringApplication.run(DemoApplication.class, args);

    }

}

　　配置文件

spring:

  application:

    name: interface

　　我们去创建provider

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

    <modelVersion>4.0.0</modelVersion>

    <parent>

        <groupId>org.springframework.boot</groupId>

        <artifactId>spring-boot-starter-parent</artifactId>

        <version>2.1.8.RELEASE</version>

        <relativePath/> <!-- lookup parent from repository -->

    </parent>

    <groupId>com.studay.leizi</groupId>

    <artifactId>leiziuser-server</artifactId>

    <version>0.0.1-SNAPSHOT</version>

    <name>leiziuser-server</name>

    <description>Demo project for Spring Boot</description>

    <properties>

        <java.version>1.8</java.version>

    </properties>

    <dependencies>

        <!-- Spring Boot dependencies -->

        <dependency>

            <groupId>com.alibaba.boot</groupId>

            <artifactId>dubbo-spring-boot-starter</artifactId>

            <version>0.2.0</version>

        </dependency>

        <dependency>

            <groupId>org.springframework.boot</groupId>

            <artifactId>spring-boot-starter</artifactId>

        </dependency>

        <dependency>

            <groupId>org.apache.dubbo</groupId>

            <artifactId>dubbo-spring-boot-starter</artifactId>

        </dependency>

        <!-- Zookeeper dependencies -->

        <dependency>

            <groupId>org.apache.dubbo</groupId>

            <artifactId>dubbo-dependencies-zookeeper</artifactId>

            <version>2.7.3</version>

        </dependency>

        <dependency>

            <groupId>com.alibaba</groupId>

            <artifactId>dubbo</artifactId>

            <version>2.6.4</version>

            <scope>compile</scope>

            <exclusions>

                <exclusion>

                    <artifactId>spring</artifactId>

                    <groupId>org.springframework</groupId>

                </exclusion>

            </exclusions>

        </dependency>

        <dependency>

            <groupId>com.example</groupId>

            <artifactId>demo</artifactId>

            <version>0.0.1-SNAPSHOT</version>

            <scope>compile</scope>

        </dependency>

    </dependencies>

    <build>

        <plugins>

            <plugin>

                <groupId>org.springframework.boot</groupId>

                <artifactId>spring-boot-maven-plugin</artifactId>

                <version>2.1.0.RELEASE</version>

                <executions>

                    <execution>

                        <goals>

                            <goal>repackage</goal>

                        </goals>

                    </execution>

                </executions>

            </plugin>

        </plugins>

    </build>

</project>

　　实现方法

package com.studay.leizi.leiziuserserver.imp;

import com.alibaba.dubbo.config.annotation.Service;

import com.example.demo.service.DemoService;

import org.springframework.beans.factory.annotation.Value;

@Service

public class DefaultDemoService implements DemoService {

    @Value("dubbo-auto-configuration-provider-demo")

    private String serviceName;

    public String sayHello(String name) {

        return String.format("Hello, %s", name);

    }

}

　　application.yml配置

spring:

  application:

    name: dubbo-registry-zookeeper-consumer-sample

dubbo:

  registry:

    address: zookeeper://127.0.0.1:3000

    protocol: zookeeper

    id: my-registry

  protocol:

    name: dubbo

    port: 12345

    id: dubbo

    status: server

  application:

    id: cusss

    name: cusss

  scan:

    basePackages: com.studay.leizi.leiziuserserver

server:

  port: 8081

　　这个时候我们去启动。

启动成功，我们去创建服务消费方

package com.styday.leiziapi.connec;

import com.alibaba.dubbo.config.annotation.Reference;

import com.alibaba.dubbo.config.annotation.Service;

import com.example.demo.service.DemoService;

import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.stereotype.Component;

@Service

@Component

public  class  Demoe implements DemoService {

    @Reference

    DemoService demoService;

    @Override

    public String sayHello(String name) {

        return demoService.sayHello(name);

    }

}

为了方便我们查看调用是否成功，我们编写controller

package com.styday.leiziapi.connter;

import com.styday.leiziapi.connec.Demoe;

import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.stereotype.Controller;

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

@RestController("/home")

public class Consned {

    @Autowired

    Demoe demoe;

    @GetMapping("/getPayInfo")

    public String say(@RequestParam("name") String name) {

        return demoe.sayHello(name);

    }

}

application.yml配置
spring:

  application:

    name: consumer

dubbo:

  registry:

    address: zookeeper://127.0.0.1:3000

  protocol:

    name: dubbo

    port: 2081

    id: dubbo

  application:

      id: cusss

      name: cusss

  scan:

      basePackages: com.styday.leiziapi.connec.Demoe

server:

  port: 9999

　　启动完毕后，启动。

、

我们可以用dubbo管理后台，去看服务的注册。下载地址 https://github.com/apache/dubbo/tree/2.5.x、

mvn clean package -Dmaven.test.skip=true

然后放在Tomcat启动。

配置下

webapps\dubbo-admin-2.6.0\WEB-INF\dubbo.properties

然后启动后登陆就可以

这样就可以在管理后台查看我们的服务了。

巴特西

spring boot +dubbo+zookeeper

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