一、前言

            网上各种各样的列子，大部分都是复制，粘贴！按说明操作完全搭建不起来，决定亲自操作一把！@供大家学习参考。

1、环境简绍

    centOS7、VMware15.0.0、zookeeper-3.4.10

1、安装zookeeper，怎么下载就不说了，如果下载都不会，您嘞该转行了！开个玩笑！！

xft客户端将zookeeper-3.4.10.tar.gz上传到/home/zookeeper中(看自己情况)

解压tar -zxvf zookeeper-3.4.10.tar.gz

修改配置文件

cp  /home/zookeeper/zookeeper-3.4.10/conf/zoo_sample.cfg     /home/zookeeper /zookeeper-3.4.10/conf/zoo.cfg （其实就是将zoo_sample.cfg复制一份，名字修改为zoo.cfg）

设置 vim zoo.cfg

# The number of milliseconds of each tick

tickTime=2000

# The number of ticks that the initial

# synchronization phase can take

initLimit=10

# The number of ticks that can pass between

# sending a request and getting anacknowledgement

syncLimit=5

# the directory where the snapshot isstored.

# do not use /tmp for storage, /tmp here isjust

# example sakes.

dataDir=/opt/zookeeper/data

# the port at which the clients willconnect

clientPort=2181

# the maximum number of client connections.

# increase this if you need to handle moreclients

#maxClientCnxns=60

#

# Be sure to read the maintenance sectionof the

# administrator guide before turning onautopurge.

#

#http://zookeeper.apache.org/doc/current/zookeeperAdmin.html#sc_maintenance

#

# The number of snapshots to retain indataDir

#autopurge.snapRetainCount=3

# Purge task interval in hours

# Set to "0" to disable autopurge feature

#autopurge.purgeInterval=1

dataLogDir=/opt/zookeeper/dataLog

server.1=master:2888:3888

server.2=slave1:2888:3888

server.3=slave2:2888:3888

备注：黑体部分是我们需要配置的地方

将dataDir 、dataLogDir创建出来

mkdir /opt/zookeeper/data

mkdir /opt/zookeeper/dataLog

 在/opt/zookeeper/data目录下新建myid并设置server.1中.后面的数字

vim myid

1

:wq!

cat myid

1

将master slave1 slave2映射到host的文件中

vim /etc/host

192.168.6.10 master

192.168.6.11 slave1

192.168.6.12 slave2

:wq!

设置环境变量

vim /etc/profile

export ZOOKEEPER_HOME=/home/zookeeper/zookeeper-3.4.10

export PATH=$PATH:$ZOOKEEPER_HOME/bin

:wq!

设置开机启动

在/etc/rc.d/init.d目录下新建zookeeper，并编辑

vim zookeeper

#!/bin/bash

#chkconfig: 2345 10 90

#description: service zookeeper

export JAVA_HOME=/usr/java/jdk1.8.0_11

export ZOO_LOG_DIR=/opt/zookeeper/dataLog

ZOOKEEPER_HOME=/home/zookeeper/zookeeper-3.4.10

su root ${ZOOKEEPER_HOME}/bin/zkServer.sh  "$1"

:wq!

为新建的/etc/rc.d/init.d/zookeeper文件添加可执行权限，命令是：

chmod +x  /etc/rc.d/init.d/zookeeper

 把zookeeper这个脚本添加到开机启动项里面，命令是：

chkconfig --add   zookeeper

如果想看看是否添加成功，命令是：

      chkconfig  --list

查看2181端口是否启用，执行命令：

  lsof  -i:2181

启动zookeeper

cd /home/zookeeper/zookeeper-3.4.10/bin

./ zkServer.sh start

停止 ./zkServer.shstop

查看状态 ./zkServer.sh status

复制该机器上的zookeeper-3.4.10到其他服务器上（如果不想集群，下面绕过！）

cd /home/

scp -r zookeeper slave1:/home/

scp -r zookeeper slave2:/home/

slave1、slave2（slave1、slave2上面已经加入到hosts文件中了，否则你的用ip地址）做上面相同的配置

查看zookeeper启动状态

方法一

service  zookeeper  status

方法二

lsof  -i:2181

方法三

netstat   -lntup

客户端连接

cd /home/zookeeper/zookeeper-3.4.10/bin/

./zkCli.sh -server 192.168.6.11:2181

二、上面环境准备好后就可以开发项目了

1、用IDEA开发（eclipse也是可以的，只是eclipse对xml提示太差！）

2、先看下项目结构maven项目，按结构创建好项目

sb_parent是maven父工程

3、配置pom.xml

sb_parent是maven父工程 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

    <groupId>com.hewanqiang

    <artifactId>sb_parent

    <packaging>pom

    <version>1.0-SNAPSHOT

        <module>spring-boot-dubbo-provider

        <module>spring-boot-dubbo-consumer

                <groupId>org.springframework.boot

                <artifactId>spring-boot-dependencies

                <version>2.0.6.RELEASE

                <type>pom

                <scope>import

            <groupId>org.springframework.boot

            <artifactId>spring-boot-starter-web

            <groupId>org.springframework.boot

            <artifactId>spring-boot-actuator

            <groupId>com.alibaba.boot

            <artifactId>dubbo-spring-boot-starter

            <version>0.2.0

            <groupId>org.apache.zookeeper

            <artifactId>zookeeper

            <version>3.4.9

            <groupId>com.github.sgroschupf

            <artifactId>zkclient

            <version>0.1

</project>

spring-boot-dubbo-provider 配置pom.xml（默认的）

<?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">

    <parent>

        <artifactId>sb_parent</artifactId>

        <groupId>com.hewanqiang</groupId>

        <version>1.0-SNAPSHOT</version>

    </parent>

    <modelVersion>4.0.0</modelVersion>

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

</project>

将spring-boot-dubbo-provider安装到本地仓库

spring-boot-dubbo-consumer 配置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">

    <parent>

        <artifactId>sb_parent</artifactId>

        <groupId>com.hewanqiang</groupId>

        <version>1.0-SNAPSHOT</version>

    </parent>

    <modelVersion>4.0.0</modelVersion>

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

    <dependencies>

        <dependency>

            <groupId>com.hewanqiang</groupId>

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

            <version>1.0-SNAPSHOT</version>

        </dependency>

    </dependencies>

</project>

spring-boot-dubbo-provider 项目类创建

IHelloService.java

HelloServiceImpl.java

DubboProvider.java

package com.alibaba.edas.boot;

public interface IHelloService {

StringsayHello(String str);

}

package com.alibaba.edas.boot;

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

@Service //这里的 Service 注解是 Dubbo 提供的一个注解类，类的全名称为

public class HelloServiceImplimplements IHelloService {

public StringsayHello(String name) {

return "Hello, " + name +" (from Dubbo with Spring Boot)";

    }

}

package com.alibaba.edas.boot;

import org.springframework.boot.SpringApplication;

import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication

public class DubboProvider {

public static void main(String[] args) {

SpringApplication.run(DubboProvider.class,args);

    }

}

application.properties

# Base packages to scan Dubbo Components (e.g @Service , @Reference)

dubbo.scan.basePackages=com.alibaba.edas.boot

dubbo.application.name=dubbo-provider-demo

dubbo.registry.address=zookeeper://192.168.255.10:2181

spring-boot-dubbo-consumer 项目类创建

DemoConsumerController.java

package com.alibaba.edas.boot;

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

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

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

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

@RestController

public class DemoConsumerController

{

@Reference //alibaba的注解 前提是已经导入了 spring-boot-dubbo-provider的jar包（用maven的install首先将其安装到本地仓库）

    private IHelloServicedemoService;

    @RequestMapping("/sayHello/{name}")//REST风格

    public StringsayHello(@PathVariable String name)

{

return demoService.sayHello(name);

    }

}

DubboConsumer.java

package com.alibaba.edas.boot;

import org.springframework.boot.SpringApplication;

import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication

public class DubboConsumer {

public static void main(String[] args) {

SpringApplication.run(DubboConsumer.class,args);

    }

}

application.properties

##server.port=8089 springBoot 同时启动多个项目，需要修改端口

server.port=8089

dubbo.application.name=dubbo-consumer-demo

dubbo.registry.address=zookeeper://192.168.255.10:2181

运行 DubboProvider.java、DubboConsumer.java

登路dubbo管理控制台（怎么安装百度），下载对应.war扔进tomcat webapp下面就可以了，当然还需修改点东西@zookeeper注册中心地址

http://192.168.255.10:8080/dubbo-admin

over！