Dubbo+Zookeeper搭建,IDEA创建demo测试。

博主有一台阿里的服务器，所以就写一下在服务器上搭建Dubbo+Zookeeper的过程和遇到的坑。

服务器:CentOS 7.4

JDK版本: 1.7

tomcat : apache-tomcat-8.5.30

dubbo版本:2.6.0 war包，可以去github上面下载项目自己打war包，后续我会上传并提供下载地址。

zookeeper版本: 3.5.3 - beta 可以去官网去下载。后续我会上传并提供下载地址。

需要先配置好JDK。具体操作百度。

好了，开始搭建吧，博主直接输入命令，可能会有些命令不对，如果发现了就提醒一下，

在linux中创建zookeeper文件夹

mkdir /usr/local/services/zookeeper

解压 zookeeper到这个文件夹

tar -zxvf  zookeeper-3.5.3-beta.tar

将解压的文件移动到新建的zookeeper里

mv zookeeper-3.5.3-beta.tar /usr/local/services/zookeeper

进入 zookeeper的conf里

cd /usr/local/services/zookeeper/zookeeper-3.5.3-beta/conf

复制zoo_sample.cfg文件重命名zoo.cfg

cp zoo_sample.cfg zoo.cfg

编辑zoo.cfg ，看具体代码和注释。

admin.serverPor 这是博主（服务器上有很多tomcat）遇到的一个坑 因为tomcat内置的端口和zk的占用 所以修改了它的默认端口。

# 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 an acknowledgement
syncLimit=5
# the directory where the snapshot is stored.
# do not use /tmp for storage, /tmp here is just 
# example sakes.
#dataDir=/tmp/zookeeper
#数据文件夹 这里data需要注意 加集群信息的话 myid文件需要在data文件下创建
dataDir=/usr/local/services/zookeeper/zookeeper-3.5.3-beta/data
#日志文件夹
dataLogDir=/usr/local/services/zookeeper/zookeeper-3.5.3-beta/logs
# the port at which the clients will connect 2181是需要调用的一个端口号,需要在防火墙中放行 
clientPort=2181
admin.serverPort=8099
# the maximum number of client connections.
# increase this if you need to handle more clients
#maxClientCnxns=60
#
# Be sure to read the maintenance section of the 
# administrator guide before turning on autopurge.
#
# http://zookeeper.apache.org/doc/current/zookeeperAdmin.html#sc_maintenance
#
# The number of snapshots to retain in dataDir
#autopurge.snapRetainCount=3
# Purge task interval in hours
# Set to "0" to disable auto purge feature
#autopurge.purgeInterval=1
#集群信息  没有就不用写下面的 ip对应的是服务器的ip
server.1=ip1:2888:3888
#server.2=ip2:2888:3888
#server.3=ip3:2888:3888

:wq 保存并退出。

配置zookeeper环境.

vim /etc/profile

加入以下code

对应自己的zookeeper安装地址。

# idea - zookeeper-3.5.3 config start - 2018-04-17
export ZOOKEEPER_HOME=/usr/local/services/zookeeper/zookeeper-3.5.3-beta/
export PATH=$ZOOKEEPER_HOME/bin:$PATH 
# idea - zookeeper-3.5.5 config start - 2018-04-17

:wq 保存退出并使文件生效。

source /etc/profile

启动zookeeper

cd usr/local/services/zookeeper/zookeeper-3.5.3-beta/bin

./zkServer.sh start 启动

./zkServer.sh status 查看zookeeper运行状态

./zkServer.sh stop 停止

启动成功。如果启动遇到什么可以问我哦。qq群:8028492。

接下来搭建dubbo。

创建tomcat文件夹并解压

mkdir /usr/local/tomcat     创建文件夹

tar -zxvf apache-tomcat-8.5.30.tar.gz    解压

mv apache-tomcat-8.5.30 /usr/local/tomcat

进入tomcat的webapps的ROOT目录下，删除所有东西，并把dubbo的war包移动过来并解压。

cd /usr/ /usr/local/tomcat/apache-tomcat-8.5.30/webapps/ROOT

在 ROOT 目录下执行删除ROOT下的所有东西 千万别搞错  哈哈哈    rm rf *

在war包目录执行  mv dubbo-admin-2.6.0.war /usr/local/tomcat/apache-tomcat-8.5.30/webapps/ROOT

tar -xvf dubbo-admin-2.6.0.war

接下来启动tomcat

cd /usr/local/tomcat/apache-tomcat-8.5.30/bin

./startup.sh

在浏览器访问tomcat 。 http://你的ip地址:tomcat端口号

就可以看到 dubbo-admin页面了

dubbo的密码账号配置在/usr/local/tomcat/apache-tomcat-8.5.30/webapps/ROOT/WEB-INF的dubbo.properties 里配置

默认用户名是root 密码 root。

接下来我们用IDEA创建一个项目来测试。博主参考的dubbo官方的demo 在github上面可以找到

创建一个maven项目

在创建一个空的mavne项目提供者

同上流程在创建另一个，消费者的

提供者代码如下：

DemoService.java

package com.demo.server;

/**
 * @Author: Laban
 * @Description:
 * @Date: Created in 9:51 2018/4/19
 * @Modfied:
 */
public interface DemoService{

    /**
     * dubbo服务提供者  server接口
     */
    String sayHello(String name);
}

DemoServiceImpl.java

package com.demo.server.impl;

import com.demo.server.DemoService;

/**
 * @Author: Laban
 * @Description:
 * @Date: Created in 9:53 2018/4/19
 * @Modfied:
 */
public class DemoServiceImpl implements DemoService{

    public String sayHello(String name) {
        return "dubbo+zookeeper测试，名字是"+name;
    }
}

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>demo</artifactId>
        <groupId>com.demo</groupId>
        <version>1.0-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <artifactId>demo-provider</artifactId>

    <dependencies>
        <dependency>
            <groupId>com.demo</groupId>
            <artifactId>demo</artifactId>
            <version>1.0-SNAPSHOT</version>
        </dependency>
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>dubbo-config-spring</artifactId>
        </dependency>
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>dubbo-registry-zookeeper</artifactId>
        </dependency>
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>dubbo-registry-multicast</artifactId>
        </dependency>
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>dubbo-rpc-dubbo</artifactId>
        </dependency>
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>dubbo-remoting-netty</artifactId>
        </dependency>
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>dubbo-serialization-hessian2</artifactId>
        </dependency>
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>dubbo</artifactId>
            <version>2.6.1</version>
        </dependency>

        <dependency>
            <groupId>org.apache.zookeeper</groupId>
            <artifactId>zookeeper</artifactId>
            <version>3.5.3-beta</version>
        </dependency>

        <dependency>
            <groupId>org.apache.curator</groupId>
            <artifactId>curator-framework</artifactId>
            <version>4.0.1</version>
        </dependency>
    </dependencies>

</project>

dubbo-demo-provider.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:dubbo="http://code.alibabatech.com/schema/dubbo"
       xmlns="http://www.springframework.org/schema/beans"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.3.xsd
       http://code.alibabatech.com/schema/dubbo http://code.alibabatech.com/schema/dubbo/dubbo.xsd">

    <!-- provider's application name, used for tracing dependency relationship -->
    <dubbo:application name="demo-provider"/>

    <!-- use multicast registry center to export service -->
    <dubbo:registry  protocol="zookeeper" address="zk安装的ip:2181"/>

    <!-- use dubbo protocol to export service on port 20880 -->
    <dubbo:protocol name="dubbo" port="20880"/>

    <!-- service implementation, as same as regular local bean -->
    <bean id="demoService" class="com.demo.server.impl.DemoServiceImpl"/>

    <!-- declare the service interface to be exported -->
    <dubbo:service interface="com.demo.server.DemoService" ref="demoService"/>

</beans>

log4j.properties

###set log levels###
log4j.rootLogger=info, stdout
###output to the console###
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.Target=System.out
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=[%d{dd/MM/yy hh:mm:ss:sss z}] %t %5p %c{2}: %m%n

测试类

package com.demo.test;

import org.springframework.context.support.ClassPathXmlApplicationContext;

import java.io.IOException;

/**
 * @Author: Laban
 * @Description:
 * @Date: Created in 10:01 2018/4/19
 * @Modfied:
 */
public class Test {

    public static void main(String[] args) {
        ClassPathXmlApplicationContext context =
                new ClassPathXmlApplicationContext(new String[]{"dubbo-demo-provider.xml"});
        System.out.println("注册服务成功");
        context.start();
        try {
            System.in.read(); // press any key to exit
        } catch (IOException e) {
            e.printStackTrace();
        }
        context.close();
    }
}

下面是消费者

Consumer.java

package com.demo.test;

import com.demo.server.DemoServer;
import org.springframework.context.support.ClassPathXmlApplicationContext;

/**
 * @Author: Laban
 * @Description:
 * @Date: Created in 11:37 2018/4/19
 * @Modfied:
 */
public class Consumer {

    public static void main(String[] args) {
        ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext(new String[]{"dubbo-demo-consumer.xml"});
        context.start();
        DemoService demoService = (DemoService ) context.getBean("demoService"); // get remote service proxy

        while (true) {
            try {
                Thread.sleep(1000);
                String hello = demoService.sayHello("world"); // call remote method
                System.out.println(hello); // get result

            } catch (Throwable throwable) {
                throwable.printStackTrace();
            }
        }

    }
}

dubbo-demo-consumer.xml

<?xml version="1.0" encoding="UTF-8"?>

<beans xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:dubbo="http://code.alibabatech.com/schema/dubbo"
       xmlns="http://www.springframework.org/schema/beans"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.3.xsd
       http://code.alibabatech.com/schema/dubbo http://code.alibabatech.com/schema/dubbo/dubbo.xsd">

    <!-- consumer's application name, used for tracing dependency relationship (not a matching criterion),
    don't set it same as provider -->
    <dubbo:application name="demo-consumer"/>

    <!-- use multicast registry center to discover service -->
    <dubbo:registry  protocol="zookeeper" address="zkip地址:2181"/>

    <!-- generate proxy for the remote service, then demoService can be used in the same way as the
    local regular interface -->
    <dubbo:reference id="demoService" check="false" interface="com.demo.server.DemoService"/>

</beans>

log配置和上面的一样配置

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>demo</artifactId>
        <groupId>com.demo</groupId>
        <version>1.0-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <artifactId>demo-consumer</artifactId>

    <dependencies>
        <dependency>
            <groupId>com.demo</groupId>
            <artifactId>demo</artifactId>
            <version>1.0-SNAPSHOT</version>
        </dependency>
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>dubbo-config-spring</artifactId>
        </dependency>
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>dubbo-registry-zookeeper</artifactId>
        </dependency>
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>dubbo-registry-multicast</artifactId>
        </dependency>
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>dubbo-rpc-dubbo</artifactId>
        </dependency>
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>dubbo-remoting-netty</artifactId>
        </dependency>
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>dubbo-serialization-hessian2</artifactId>
        </dependency>
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>dubbo</artifactId>
            <version>2.6.1</version>
        </dependency>

        <dependency>
            <groupId>org.apache.zookeeper</groupId>
            <artifactId>zookeeper</artifactId>
            <version>3.5.3-beta</version>
        </dependency>

        <dependency>
            <groupId>org.apache.curator</groupId>
            <artifactId>curator-framework</artifactId>
            <version>4.0.1</version>
        </dependency>
        <dependency>
            <groupId>com.demo</groupId>
            <artifactId>demo-provider</artifactId>
            <version>1.0-SNAPSHOT</version>
        </dependency>
    </dependencies>
</project>

运行测试:

项目目录

到此结束。一些下载的连接后续补上，有什么问题可以找我。群:8028492

Dubbo+Zookeeper搭建,IDEA创建demo测试。

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