Dubbo-admin管理平台搭建

Dubbo的使用，其实只需要有注册中心，消费者，提供者这三个就可以使用了，但是并不能看到有哪些消费者和提供者，为了更好的调试，发现问题，解决问题，因此引入dubbo-admin。通过dubbo-admin可以对消费者和提供者进行管理。

Dubbo-admin可以对注册到zookeeper注册中心的服务或服务消费者进行管理，但是否正常对Dubbo服务没有影响，管控台也不需要高可用，因此可以单节点部署。

1、从官网下载源码

# git clone https://github.com/alibaba/dubbo.git

2、配置dubbo.properties：

$ vim  dubbo/dubbo-admin/src/main/webapp/WEB-INF/dubbo.properties

dubbo.registry.address=zookeeper://192.168.10.101:2181   注：这里说明下zookeeper地址，这个指的是已经部署好的注册中心zookeeper的IP地址，端口号不变

dubbo.admin.root.password=root 

dubbo.admin.guest.password=root

3、进行构建并打成war包

# cd dubbo/dubbo-admin

# mvn package -Dmaven.skip.test=true

4、把构建好的war包放到tomcat下运行，war包在dubbo/dubbo-admin/target/下

5、用浏览器打开地址 http://localhost:8080/dubbo-admin，账号密码都是 root，则就可以进入到 dubbo管理控制台

FAQ：

一、打包时Maven依赖找不到

1.错误：[ERROR] Failed to execute goal on project dubbo-common: Could not resolve dependencies for project 
2.原因：dubbo-admin工程下pom.xml中有些jar包不能被公网访问到 
3.解决办法： 

1. 根据报的依赖错修改version  比如：

<dependency>
<groupId>com.alibaba</groupId>
<artifactId>dubbo</artifactId>
<version>2.5.3</version>
</dependency>

       2.下载相应的jar包放到本地仓库 

       3.参考网址：https://github.com/alibaba/dubbo/issues/22

可用的示例文件：

<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/maven-v4_0_0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>com.alibaba</groupId>
        <artifactId>dubbo-parent</artifactId>
        <version>2.5.4-SNAPSHOT</version>
    </parent>
    <artifactId>dubbo-admin</artifactId>
    <packaging>war</packaging>
    <name>${project.artifactId}</name>
    <description>The admin module of dubbo project</description>
    <properties>
        <wtpversion>1.5</wtpversion>
        <wtpContextName>/</wtpContextName>
        <eclipse.useProjectReferences>false</eclipse.useProjectReferences>
        <skip_maven_deploy>false</skip_maven_deploy>
    </properties>
    <dependencies>
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>dubbo</artifactId>
            <version>2.5.3</version>
             <exclusions>
            <exclusion>
                <groupId>org.springframework</groupId>
                <artifactId>spring</artifactId>
            </exclusion>
        </exclusions>
        </dependency>
        <dependency>
            <groupId>com.alibaba.citrus</groupId>
            <artifactId>citrus-webx-all</artifactId>
             <version>3.1.6</version>
        </dependency>
        <dependency>
            <groupId>org.javassist</groupId>
            <artifactId>javassist</artifactId>
        </dependency>
        <dependency>
            <groupId>org.jboss.netty</groupId>
            <artifactId>netty</artifactId>
        </dependency>
        <dependency>
            <groupId>org.apache.mina</groupId>
            <artifactId>mina-core</artifactId>
        </dependency>
        <dependency>
            <groupId>org.glassfish.grizzly</groupId>
            <artifactId>grizzly-core</artifactId>
        </dependency>
        <dependency>
            <groupId>org.apache.httpcomponents</groupId>
            <artifactId>httpclient</artifactId>
        </dependency>
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>fastjson</artifactId>
        </dependency>
        <dependency>
            <groupId>com.thoughtworks.xstream</groupId>
            <artifactId>xstream</artifactId>
        </dependency>
        <dependency>
            <groupId>org.apache.bsf</groupId>
            <artifactId>bsf-api</artifactId>
        </dependency>
        <dependency>
            <groupId>org.apache.zookeeper</groupId>
            <artifactId>zookeeper</artifactId>
        </dependency>
        <dependency>
            <groupId>com.github.sgroschupf</groupId>
            <artifactId>zkclient</artifactId>
        </dependency>
        <dependency>
            <groupId>com.netflix.curator</groupId>
            <artifactId>curator-framework</artifactId>
        </dependency>
        <dependency>
            <groupId>com.googlecode.xmemcached</groupId>
            <artifactId>xmemcached</artifactId>
        </dependency>
        <dependency>
            <groupId>org.apache.thrift</groupId>
            <artifactId>libthrift</artifactId>
        </dependency>
        <dependency>
            <groupId>com.caucho</groupId>
            <artifactId>hessian</artifactId>
        </dependency>
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>servlet-api</artifactId>
            <scope>provided</scope>
        </dependency>
        <dependency>
            <groupId>log4j</groupId>
            <artifactId>log4j</artifactId>
        </dependency>
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-api</artifactId>
        </dependency>
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-log4j12</artifactId>
        </dependency>
        <dependency>
            <groupId>redis.clients</groupId>
            <artifactId>jedis</artifactId>
        </dependency>
        <dependency>
            <groupId>javax.validation</groupId>
            <artifactId>validation-api</artifactId>
        </dependency>
        <dependency>
            <groupId>org.hibernate</groupId>
            <artifactId>hibernate-validator</artifactId>
        </dependency>
        <dependency>
            <groupId>javax.cache</groupId>
            <artifactId>cache-api</artifactId>
        </dependency>
        <dependency>
        <groupId>org.apache.velocity</groupId>
        <artifactId>velocity</artifactId>
        <version>1.7</version>
    </dependency>
    </dependencies>
    <build>
        <plugins>
            <plugin>
                <groupId>org.mortbay.jetty</groupId>
                <artifactId>maven-jetty-plugin</artifactId>
                <version>${jetty_version}</version>
                <configuration>
                    <contextPath>/</contextPath>
                    <scanIntervalSeconds>10</scanIntervalSeconds>
                    <connectors>
                        <connector implementation="org.mortbay.jetty.nio.SelectChannelConnector">
                            <port>8080</port>
                            <maxIdleTime>60000</maxIdleTime>
                        </connector>
                    </connectors>
                </configuration>
            </plugin>
        </plugins>
    </build>
</project>