一、前言
? ? ? ? ? ? 網上各種各樣的列子，大部分都是復制，粘貼！按說明操作完全搭建不起來，決定親自操作一把！@供大家學習參考。
1、環境簡紹
? ? centOS7、VMware15.0.0、zookeeper-3.4.10
1、安裝zookeeper，怎么下載就不說了，如果下載都不會，您嘞該轉行了！開個玩笑?。?/p>
xft客戶端將zookeeper-3.4.10.tar.gz上傳到/home/zookeeper中(看自己情況)
解壓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 （其實就是將zoo_sample.cfg復制一份，名字修改為zoo.cfg）
設置 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
備注：黑體部分是我們需要配置的地方
將dataDir 、dataLogDir創建出來
mkdir /opt/zookeeper/data
mkdir /opt/zookeeper/dataLog
?在/opt/zookeeper/data目錄下新建myid并設置server.1中.后面的數字
vim myid
1
:wq!
cat myid
1
將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!
設置環境變量
vim /etc/profile
export ZOOKEEPER_HOME=/home/zookeeper/zookeeper-3.4.10
export PATH=$PATH:$ZOOKEEPER_HOME/bin
:wq!
設置開機啟動
在/etc/rc.d/init.d目錄下新建zookeeper，并編輯
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!
為新建的/etc/rc.d/init.d/zookeeper文件添加可執行權限，命令是：
chmod?+x ?/etc/rc.d/init.d/zookeeper
?把zookeeper這個腳本添加到開機啟動項里面，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端口是否啟用，執行命令：
? lsof? -i:2181
啟動zookeeper
cd /home/zookeeper/zookeeper-3.4.10/bin
./ zkServer.sh start
停止?./zkServer.shstop
查看狀態 ./zkServer.sh status
復制該機器上的zookeeper-3.4.10到其他服務器上（如果不想集群，下面繞過！）
cd /home/
scp -r zookeeper slave1:/home/
scp -r zookeeper slave2:/home/
slave1、slave2（slave1、slave2上面已經加入到hosts文件中了，否則你的用ip地址）做上面相同的配置
查看zookeeper啟動狀態
方法一
service??zookeeper? status
方法二
lsof ?-i:2181
方法三
netstat ? -lntup
客戶端連接
cd /home/zookeeper/zookeeper-3.4.10/bin/
./zkCli.sh -server 192.168.6.11:2181
二、上面環境準備好后就可以開發項目了
1、用IDEA開發（eclipse也是可以的，只是eclipse對xml提示太差?。?/p>
2、先看下項目結構maven項目，按結構創建好項目
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（默認的）
<?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>
將spring-boot-dubbo-provider安裝到本地倉庫
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 項目類創建
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 //這里的 Service 注解是 Dubbo 提供的一個注解類，類的全名稱為
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 項目類創建
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 前提是已經導入了 spring-boot-dubbo-provider的jar包（用maven的install首先將其安裝到本地倉庫）
? ? private IHelloServicedemoService;
? ? @RequestMapping("/sayHello/{name}")//REST風格
? ? 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 同時啟動多個項目，需要修改端口
server.port=8089
dubbo.application.name=dubbo-consumer-demo
dubbo.registry.address=zookeeper://192.168.255.10:2181
運行 DubboProvider.java、DubboConsumer.java
登路dubbo管理控制臺（怎么安裝百度），下載對應.war扔進tomcat webapp下面就可以了，當然還需修改點東西@zookeeper注冊中心地址
http://192.168.255.10:8080/dubbo-admin
