之前:
RPC: Remote Produedure Call :一种通过网络从远程计算机程序上请求服务,而不需要了解底层网络技术的协议
SOA: Service-oriented architecture 面向服务的体系结构(SOA)是一个组件模型,它将应用程序的不同功能单元(称为服务)通过这些服务之间定义良好的接口和契约联系起来。接口是采用中立的方式进行定义的,它应该独立于实现服务的硬件平台、操作系统和编程语言。
zooKeeper: 引用官方的说法:“Zookeeper是一个高性能,分布式的,开源分布式应用协调服务。它提供了简单原始的功能,分布式应用可以基于它实现更高级 的服务,比如同步,配置管理,集群管理,名空间。
Dubbo是一个来自阿里巴巴的开源分布式服务框架;
DubboX是当当根据自身的需求,为Dubbo实现了一些新的功能,包括REST风格远程调用、Kryo/FST序列化等等;
使用Dubbox搭建Demo:
服务端:
1、工程结构:
2、ivy.xml配置:主要引入Dubbox和spring.日志等相关jar;
代码语言:javascript复制<?xml version="1.0" encoding="UTF-8"?>
<ivy-module version="2.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:noNamespaceSchemaLocation="http://ant.apache.org/ivy/schemas/ivy.xsd">
<info
organisation="com.dubbox.service"
module="dubbox-services"
status="integration">
</info>
<configurations>
<conf name="default" visibility="public" description="runtime dependencies and master artifact can be used with this conf" extends="runtime,master"/>
<conf name="master" visibility="public" description="contains only the artifact published by this module itself, with no transitive dependencies"/>
<conf name="compile" visibility="public" description="this is the default scope, used if none is specified. Compile dependencies are available in all classpaths."/>
<conf name="provided" visibility="public" description="this is much like compile, but indicates you expect the JDK or a container to provide it. It is only available on the compilation classpath, and is not transitive."/>
<conf name="runtime" visibility="public" description="this scope indicates that the dependency is not required for compilation, but is for execution. It is in the runtime and test classpaths, but not the compile classpath." extends="compile"/>
<conf name="test" visibility="private" description="this scope indicates that the dependency is not required for normal use of the application, and is only available for the test compilation and execution phases." extends="runtime"/>
<conf name="system" visibility="public" description="this scope is similar to provided except that you have to provide the JAR which contains it explicitly. The artifact is always available and is not looked up in a repository."/>
<conf name="sources" visibility="public" description="this configuration contains the source artifact of this module, if any."/>
<conf name="javadoc" visibility="public" description="this configuration contains the javadoc artifact of this module, if any."/>
<conf name="optional" visibility="public" description="contains all optional dependencies"/>
</configurations>
<dependencies>
<!-- Spring 相关内容 -->
<dependency org="org.springframework" name="spring-core" rev="4.2.5.RELEASE" conf="compile->compile(*),master(*);runtime->runtime(*)" transitive="false"/>
<dependency org="org.springframework" name="spring-beans" rev="4.2.5.RELEASE" conf="compile->compile(*),master(*);runtime->runtime(*)" transitive="false"/>
<dependency org="org.springframework" name="spring-web" rev="4.2.5.RELEASE" conf="compile->compile(*),master(*);runtime->runtime(*)" transitive="false"/>
<dependency org="org.springframework" name="spring-webmvc" rev="4.2.5.RELEASE" conf="compile->compile(*),master(*);runtime->runtime(*)" transitive="false"/>
<dependency org="org.springframework" name="spring-context" rev="4.2.5.RELEASE" conf="compile->compile(*),master(*);runtime->runtime(*)" transitive="false"/>
<dependency org="org.springframework" name="spring-context-support" rev="4.2.5.RELEASE" conf="compile->compile(*),master(*);runtime->runtime(*)" transitive="false"/>
<dependency org="org.springframework" name="spring-aop" rev="4.2.5.RELEASE" conf="compile->compile(*),master(*);runtime->runtime(*)" transitive="false"/>
<dependency org="org.springframework" name="spring-expression" rev="4.2.5.RELEASE" conf="compile->compile(*),master(*);runtime->runtime(*)" transitive="false"/>
<dependency org="org.springframework" name="spring-tx" rev="4.2.5.RELEASE" conf="compile->compile(*),master(*);runtime->runtime(*)" transitive="false"/>
<dependency org="org.springframework" name="spring-jms" rev="4.2.5.RELEASE" conf="compile->compile(*),master(*);runtime->runtime(*)" transitive="false"/>
<dependency org="org.springframework" name="spring-messaging" rev="4.2.5.RELEASE" conf="compile->compile(*),master(*);runtime->runtime(*)" transitive="false"/>
<dependency org="org.springframework" name="spring-jdbc" rev="4.2.5.RELEASE" conf="compile->compile(*),master(*);runtime->runtime(*)" transitive="false"/>
<dependency org="aopalliance" name="aopalliance" rev="1.0" conf="compile->compile(*),master(*);runtime->runtime(*)" transitive="false"/>
<dependency org="com.sun.xml.fastinfoset" name="FastInfoset" rev="1.2.13" conf="compile->compile(*),master(*);runtime->runtime(*)" transitive="false"/>
<dependency org="cglib" name="cglib-nodep" rev="3.1" conf="compile->compile(*),master(*);runtime->runtime(*)" />
<dependency org="org.aspectj" name="aspectjrt" rev="1.8.0" conf="compile->compile(*),master(*);runtime->runtime(*)" transitive="false"/>
<dependency org="org.aspectj" name="aspectjweaver" rev="1.8.0" conf="compile->compile(*),master(*);runtime->runtime(*)" transitive="false"/>
<!-- Apache Commons -->
<dependency org="commons-codec" name="commons-codec" rev="1.10" conf="compile->compile(*),master(*);runtime->runtime(*)" transitive="false"/>
<dependency org="commons-pool" name="commons-pool" rev="1.6" conf="compile->compile(*),master(*);runtime->runtime(*)" transitive="false"/>
<dependency org="commons-io" name="commons-io" rev="2.4" conf="compile->compile(*),master(*);runtime->runtime(*)" transitive="false"/>
<dependency org="commons-net" name="commons-net" rev="3.3" conf="compile->compile(*),master(*);runtime->runtime(*)" transitive="false"/>
<!-- JSR303 Validation -->
<dependency org="javax.validation" name="validation-api" rev="1.1.0.Final" conf="compile->compile(*),master(*);runtime->runtime(*)" transitive="false"/>
<dependency org="org.hibernate" name="hibernate-validator" rev="5.1.3.Final" conf="compile->compile(*),master(*);runtime->runtime(*)" transitive="false"/>
<dependency org="com.fasterxml" name="classmate" rev="1.1.0" conf="compile->compile(*),master(*);runtime->runtime(*)" transitive="false"/>
<!-- json序列化相关 -->
<dependency org="com.fasterxml.jackson.core" name="jackson-core" rev="2.7.3" conf="compile->compile(*),master(*);runtime->runtime(*)" transitive="false"/>
<dependency org="com.fasterxml.jackson.core" name="jackson-annotations" rev="2.7.3" conf="compile->compile(*),master(*);runtime->runtime(*)" transitive="false"/>
<dependency org="com.fasterxml.jackson.core" name="jackson-databind" rev="2.7.3" conf="compile->compile(*),master(*);runtime->runtime(*)" transitive="false"/>
<!-- Log 相关内容 -->
<dependency org="org.slf4j" name="slf4j-api" rev="1.7.10" conf="compile->compile(*),master(*);runtime->runtime(*)" transitive="false"/>
<dependency org="org.slf4j" name="jcl-over-slf4j" rev="1.7.10" conf="compile->compile(*),master(*);runtime->runtime(*)" transitive="false"/>
<dependency org="org.slf4j" name="jul-to-slf4j" rev="1.7.10" conf="compile->compile(*),master(*);runtime->runtime(*)" transitive="false"/>
<dependency org="org.slf4j" name="log4j-over-slf4j" rev="1.7.10" conf="compile->compile(*),master(*);runtime->runtime(*)" transitive="false"/>
<dependency org="ch.qos.logback" name="logback-classic" rev="1.1.2" conf="compile->compile(*),master(*);runtime->runtime(*)" transitive="false"/>
<dependency org="ch.qos.logback" name="logback-core" rev="1.1.2" conf="compile->compile(*),master(*);runtime->runtime(*)" transitive="false"/>
<dependency org="org.jboss.logging" name="jboss-logging" rev="3.2.1.Final" conf="compile->compile(*),master(*);runtime->runtime(*)" transitive="false"/>
<!-- DobboX -->
<dependency org="com.alibaba" name= "dubbo" rev="2.8.4" conf="compile->compile(*),master(*);runtime->runtime(*)" transitive="false"/>
<dependency org="io.netty" name="netty" rev="3.10.5.Final" conf="compile->compile(*),master(*);runtime->runtime(*)" transitive="false"/>
<dependency org="com.google.guava" name="guava" rev="19.0" conf="compile->compile(*),master(*);runtime->runtime(*)" transitive="false"/>
<dependency org="com.101tec" name="zkclient" rev="0.7" conf="compile->compile(*),master(*);runtime->runtime(*)" transitive="false"/>
<dependency org="org.javassist" name="javassist" rev="3.20.0-GA" conf="compile->compile(*),master(*);runtime->runtime(*)" transitive="false"/>
<dependency org="org.jboss.resteasy" name="resteasy-jaxrs" rev="3.0.14.Final" conf="compile->compile(*),master(*);runtime->runtime(*)" transitive="false"/>
<dependency org="org.jboss.resteasy" name="resteasy-client" rev="3.0.14.Final" conf="compile->compile(*),master(*);runtime->runtime(*)" transitive="false"/>
<dependency org="org.jboss.resteasy" name="resteasy-jackson2-provider" rev="3.0.14.Final" conf="compile->compile(*),master(*);runtime->runtime(*)" transitive="false"/>
<dependency org="org.jboss.resteasy" name="jaxrs-api" rev="3.0.12.Final" />
<dependency org="com.fasterxml.jackson.jaxrs" name="jackson-jaxrs-json-provider" rev="2.7.3" conf="compile->compile(*),master(*);runtime->runtime(*)" transitive="false"/>
<dependency org="com.fasterxml.jackson.jaxrs" name="jackson-jaxrs-base" rev="2.7.3" conf="compile->compile(*),master(*);runtime->runtime(*)" transitive="false"/>
<dependency org="com.fasterxml.jackson.module" name="jackson-module-jaxb-annotations" rev="2.7.3" conf="compile->compile(*),master(*);runtime->runtime(*)" transitive="false"/>
<dependency org="de.javakaffee" name="kryo-serializers" rev="0.41" conf="compile->compile(*),master(*);runtime->runtime(*)" transitive="false"/>
<dependency org="com.esotericsoftware" name="kryo" rev="4.0.0" conf="compile->compile(*),master(*);runtime->runtime(*)" transitive="false"/>
<dependency org="com.esotericsoftware" name="reflectasm" rev="1.11.3" conf="compile->compile(*),master(*);runtime->runtime(*)" transitive="false"/>
<dependency org="org.ow2.asm" name="asm" rev="5.0.4" conf="compile->compile(*),master(*);runtime->runtime(*)" transitive="false"/>
<dependency org="org.objenesis" name="objenesis" rev="2.4" conf="compile->compile(*),master(*);runtime->runtime(*)" transitive="false"/>
<dependency org="com.esotericsoftware" name="minlog" rev="1.3.0" conf="compile->compile(*),master(*);runtime->runtime(*)" transitive="false"/>
<!-- Http 客户端 -->
<dependency org="org.apache.httpcomponents" name="httpclient" rev="4.4.1" conf="compile->compile(*),master(*);runtime->runtime(*)" transitive="false"/>
<dependency org="org.apache.httpcomponents" name="httpcore" rev="4.4.1" conf="compile->compile(*),master(*);runtime->runtime(*)" transitive="false"/>
<dependency org="org.apache.httpcomponents" name="httpmime" rev="4.4.1" transitive="false"/>
<!-- ZooKeeper -->
<dependency org="org.apache.zookeeper" name="zookeeper" rev="3.4.8" transitive="false"/>
<!-- 其他: Web容器自带 -->
<dependency org="javax.el" name="javax.el-api" rev="3.0.0" conf="provided->*" transitive="false"/>
<dependency org="javax.servlet" name="javax.servlet-api" rev="3.1.0" conf="provided->*" transitive="false"/>
</dependencies>
</ivy-module>
3、web.xml:
代码语言:javascript复制<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://java.sun.com/xml/ns/javaee"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
id="core-services" version="3.0">
<display-name>dubbox-services</display-name>
<welcome-file-list>
<welcome-file>index.html</welcome-file>
<welcome-file>index.htm</welcome-file>
<welcome-file>index.jsp</welcome-file>
<welcome-file>default.html</welcome-file>
<welcome-file>default.htm</welcome-file>
<welcome-file>default.jsp</welcome-file>
</welcome-file-list>
<!-- Spring -->
<servlet>
<servlet-name>mvc-dispatcher</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>WEB-INF/dubbox.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>mvc-dispatcher</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
</web-app>
4、dubbox.xml:
代码语言:javascript复制<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context"
xmlns:dubbo="http://code.alibabatech.com/schema/dubbo"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.xsd
http://code.alibabatech.com/schema/dubbo
http://code.alibabatech.com/schema/dubbo/dubbo.xsd">
<context:property-placeholder />
<!-- 消费方应用名,用于计算依赖关系,不是匹配条件,不要与提供方一样 -->
<dubbo:application name="dubbox-services" />
<!-- 使用zookeeper注册中心暴露服务地址 -->
<dubbo:registry protocol="zookeeper" address="${zkHost:127.0.0.1:2181}" />
<!-- 用dubbo协议暴露服务 -->
<dubbo:protocol name="dubbo" port="${dubbo.port:20880}" />
<!-- 调用的服务时的公共配置 -->
<dubbo:consumer check="${dubbo.client.check:false}" retries="${dubbo.client.retries:0}"
timeout="${dubbo.client.timeout:5000}" />
<dubbo:service ref="demoService" interface="com.dubbox.service.DemoService"></dubbo:service>
<import resource="classpath:com/dubbox/service/beans.xml"/>
</beans>
5、beans.xml与服务接口与实现类:
代码语言:javascript复制<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context"
xmlns:task="http://www.springframework.org/schema/task"
xmlns:elasticsearch="http://www.springframework.org/schema/data/elasticsearch"
xsi:schemaLocation="http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.xsd
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd">
<context:property-placeholder />
<context:annotation-config />
<context:component-scan base-package="com.dubbox.service" />
<bean id="demoService" class="com.dubbox.service.DemoServiceImpl" />
</beans>
代码语言:javascript复制package com.dubbox.service;
public interface DemoService {
public String greet(String name);
}
代码语言:javascript复制package com.dubbox.service;
public class DemoServiceImpl implements DemoService{
@Override
public String greet(String name) {
return "HI, " name;
}
}
以上是服务端所有代码,只写了一个方法,用于测试远程调用。其中最主要文件是dubbox.xml,在其中配置需要发布的接口;
客户端:
1、工程结构:
需要说明的是d-s.jar是以上服务端打成的jar包,放到了lib下面直接引用;
2、ivy.xml:几乎与服务端一样
代码语言:javascript复制<?xml version="1.0" encoding="UTF-8"?>
<ivy-module version="2.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:noNamespaceSchemaLocation="http://ant.apache.org/ivy/schemas/ivy.xsd">
<info
organisation="com.dubbox.client"
module="dubbox-client"
status="integration">
</info>
<configurations>
<conf name="default" visibility="public" description="runtime dependencies and master artifact can be used with this conf" extends="runtime,master"/>
<conf name="master" visibility="public" description="contains only the artifact published by this module itself, with no transitive dependencies"/>
<conf name="compile" visibility="public" description="this is the default scope, used if none is specified. Compile dependencies are available in all classpaths."/>
<conf name="provided" visibility="public" description="this is much like compile, but indicates you expect the JDK or a container to provide it. It is only available on the compilation classpath, and is not transitive."/>
<conf name="runtime" visibility="public" description="this scope indicates that the dependency is not required for compilation, but is for execution. It is in the runtime and test classpaths, but not the compile classpath." extends="compile"/>
<conf name="test" visibility="private" description="this scope indicates that the dependency is not required for normal use of the application, and is only available for the test compilation and execution phases." extends="runtime"/>
<conf name="system" visibility="public" description="this scope is similar to provided except that you have to provide the JAR which contains it explicitly. The artifact is always available and is not looked up in a repository."/>
<conf name="sources" visibility="public" description="this configuration contains the source artifact of this module, if any."/>
<conf name="javadoc" visibility="public" description="this configuration contains the javadoc artifact of this module, if any."/>
<conf name="optional" visibility="public" description="contains all optional dependencies"/>
</configurations>
<dependencies>
<!-- Spring 相关内容 -->
<dependency org="org.springframework" name="spring-core" rev="4.2.5.RELEASE" conf="compile->compile(*),master(*);runtime->runtime(*)" transitive="false"/>
<dependency org="org.springframework" name="spring-beans" rev="4.2.5.RELEASE" conf="compile->compile(*),master(*);runtime->runtime(*)" transitive="false"/>
<dependency org="org.springframework" name="spring-web" rev="4.2.5.RELEASE" conf="compile->compile(*),master(*);runtime->runtime(*)" transitive="false"/>
<dependency org="org.springframework" name="spring-webmvc" rev="4.2.5.RELEASE" conf="compile->compile(*),master(*);runtime->runtime(*)" transitive="false"/>
<dependency org="org.springframework" name="spring-context" rev="4.2.5.RELEASE" conf="compile->compile(*),master(*);runtime->runtime(*)" transitive="false"/>
<dependency org="org.springframework" name="spring-context-support" rev="4.2.5.RELEASE" conf="compile->compile(*),master(*);runtime->runtime(*)" transitive="false"/>
<dependency org="org.springframework" name="spring-aop" rev="4.2.5.RELEASE" conf="compile->compile(*),master(*);runtime->runtime(*)" transitive="false"/>
<dependency org="org.springframework" name="spring-expression" rev="4.2.5.RELEASE" conf="compile->compile(*),master(*);runtime->runtime(*)" transitive="false"/>
<dependency org="org.springframework" name="spring-tx" rev="4.2.5.RELEASE" conf="compile->compile(*),master(*);runtime->runtime(*)" transitive="false"/>
<dependency org="org.springframework" name="spring-jms" rev="4.2.5.RELEASE" conf="compile->compile(*),master(*);runtime->runtime(*)" transitive="false"/>
<dependency org="org.springframework" name="spring-messaging" rev="4.2.5.RELEASE" conf="compile->compile(*),master(*);runtime->runtime(*)" transitive="false"/>
<dependency org="org.springframework" name="spring-jdbc" rev="4.2.5.RELEASE" conf="compile->compile(*),master(*);runtime->runtime(*)" transitive="false"/>
<dependency org="aopalliance" name="aopalliance" rev="1.0" conf="compile->compile(*),master(*);runtime->runtime(*)" transitive="false"/>
<dependency org="com.sun.xml.fastinfoset" name="FastInfoset" rev="1.2.13" conf="compile->compile(*),master(*);runtime->runtime(*)" transitive="false"/>
<dependency org="cglib" name="cglib-nodep" rev="3.1" conf="compile->compile(*),master(*);runtime->runtime(*)" />
<dependency org="org.aspectj" name="aspectjrt" rev="1.8.0" conf="compile->compile(*),master(*);runtime->runtime(*)" transitive="false"/>
<dependency org="org.aspectj" name="aspectjweaver" rev="1.8.0" conf="compile->compile(*),master(*);runtime->runtime(*)" transitive="false"/>
<!-- Apache Commons -->
<dependency org="commons-codec" name="commons-codec" rev="1.10" conf="compile->compile(*),master(*);runtime->runtime(*)" transitive="false"/>
<dependency org="commons-pool" name="commons-pool" rev="1.6" conf="compile->compile(*),master(*);runtime->runtime(*)" transitive="false"/>
<dependency org="commons-io" name="commons-io" rev="2.4" conf="compile->compile(*),master(*);runtime->runtime(*)" transitive="false"/>
<dependency org="commons-net" name="commons-net" rev="3.3" conf="compile->compile(*),master(*);runtime->runtime(*)" transitive="false"/>
<!-- JSR303 Validation -->
<dependency org="javax.validation" name="validation-api" rev="1.1.0.Final" conf="compile->compile(*),master(*);runtime->runtime(*)" transitive="false"/>
<dependency org="org.hibernate" name="hibernate-validator" rev="5.1.3.Final" conf="compile->compile(*),master(*);runtime->runtime(*)" transitive="false"/>
<dependency org="com.fasterxml" name="classmate" rev="1.1.0" conf="compile->compile(*),master(*);runtime->runtime(*)" transitive="false"/>
<!-- json序列化相关 -->
<dependency org="com.fasterxml.jackson.core" name="jackson-core" rev="2.7.3" conf="compile->compile(*),master(*);runtime->runtime(*)" transitive="false"/>
<dependency org="com.fasterxml.jackson.core" name="jackson-annotations" rev="2.7.3" conf="compile->compile(*),master(*);runtime->runtime(*)" transitive="false"/>
<dependency org="com.fasterxml.jackson.core" name="jackson-databind" rev="2.7.3" conf="compile->compile(*),master(*);runtime->runtime(*)" transitive="false"/>
<!-- Log 相关内容 -->
<dependency org="org.slf4j" name="slf4j-api" rev="1.7.10" conf="compile->compile(*),master(*);runtime->runtime(*)" transitive="false"/>
<dependency org="org.slf4j" name="jcl-over-slf4j" rev="1.7.10" conf="compile->compile(*),master(*);runtime->runtime(*)" transitive="false"/>
<dependency org="org.slf4j" name="jul-to-slf4j" rev="1.7.10" conf="compile->compile(*),master(*);runtime->runtime(*)" transitive="false"/>
<dependency org="org.slf4j" name="log4j-over-slf4j" rev="1.7.10" conf="compile->compile(*),master(*);runtime->runtime(*)" transitive="false"/>
<dependency org="ch.qos.logback" name="logback-classic" rev="1.1.2" conf="compile->compile(*),master(*);runtime->runtime(*)" transitive="false"/>
<dependency org="ch.qos.logback" name="logback-core" rev="1.1.2" conf="compile->compile(*),master(*);runtime->runtime(*)" transitive="false"/>
<dependency org="org.jboss.logging" name="jboss-logging" rev="3.2.1.Final" conf="compile->compile(*),master(*);runtime->runtime(*)" transitive="false"/>
<!-- DobboX -->
<dependency org="com.alibaba" name= "dubbo" rev="2.8.4" conf="compile->compile(*),master(*);runtime->runtime(*)" transitive="false"/>
<dependency org="io.netty" name="netty" rev="3.10.5.Final" conf="compile->compile(*),master(*);runtime->runtime(*)" transitive="false"/>
<dependency org="com.google.guava" name="guava" rev="19.0" conf="compile->compile(*),master(*);runtime->runtime(*)" transitive="false"/>
<dependency org="com.101tec" name="zkclient" rev="0.7" conf="compile->compile(*),master(*);runtime->runtime(*)" transitive="false"/>
<dependency org="org.javassist" name="javassist" rev="3.20.0-GA" conf="compile->compile(*),master(*);runtime->runtime(*)" transitive="false"/>
<dependency org="org.jboss.resteasy" name="resteasy-jaxrs" rev="3.0.14.Final" conf="compile->compile(*),master(*);runtime->runtime(*)" transitive="false"/>
<dependency org="org.jboss.resteasy" name="resteasy-client" rev="3.0.14.Final" conf="compile->compile(*),master(*);runtime->runtime(*)" transitive="false"/>
<dependency org="org.jboss.resteasy" name="resteasy-jackson2-provider" rev="3.0.14.Final" conf="compile->compile(*),master(*);runtime->runtime(*)" transitive="false"/>
<dependency org="org.jboss.resteasy" name="jaxrs-api" rev="3.0.12.Final" />
<dependency org="com.fasterxml.jackson.jaxrs" name="jackson-jaxrs-json-provider" rev="2.7.3" conf="compile->compile(*),master(*);runtime->runtime(*)" transitive="false"/>
<dependency org="com.fasterxml.jackson.jaxrs" name="jackson-jaxrs-base" rev="2.7.3" conf="compile->compile(*),master(*);runtime->runtime(*)" transitive="false"/>
<dependency org="com.fasterxml.jackson.module" name="jackson-module-jaxb-annotations" rev="2.7.3" conf="compile->compile(*),master(*);runtime->runtime(*)" transitive="false"/>
<dependency org="de.javakaffee" name="kryo-serializers" rev="0.41" conf="compile->compile(*),master(*);runtime->runtime(*)" transitive="false"/>
<dependency org="com.esotericsoftware" name="kryo" rev="4.0.0" conf="compile->compile(*),master(*);runtime->runtime(*)" transitive="false"/>
<dependency org="com.esotericsoftware" name="reflectasm" rev="1.11.3" conf="compile->compile(*),master(*);runtime->runtime(*)" transitive="false"/>
<dependency org="org.ow2.asm" name="asm" rev="5.0.4" conf="compile->compile(*),master(*);runtime->runtime(*)" transitive="false"/>
<dependency org="org.objenesis" name="objenesis" rev="2.4" conf="compile->compile(*),master(*);runtime->runtime(*)" transitive="false"/>
<dependency org="com.esotericsoftware" name="minlog" rev="1.3.0" conf="compile->compile(*),master(*);runtime->runtime(*)" transitive="false"/>
<!-- Http 客户端 -->
<dependency org="org.apache.httpcomponents" name="httpclient" rev="4.4.1" conf="compile->compile(*),master(*);runtime->runtime(*)" transitive="false"/>
<dependency org="org.apache.httpcomponents" name="httpcore" rev="4.4.1" conf="compile->compile(*),master(*);runtime->runtime(*)" transitive="false"/>
<dependency org="org.apache.httpcomponents" name="httpmime" rev="4.4.1" transitive="false"/>
<!-- ZooKeeper -->
<dependency org="org.apache.zookeeper" name="zookeeper" rev="3.4.8" transitive="false"/>
<!-- 其他: Web容器自带 -->
<dependency org="javax.el" name="javax.el-api" rev="3.0.0" conf="provided->*" transitive="false"/>
<dependency org="javax.servlet" name="javax.servlet-api" rev="3.1.0" conf="provided->*" transitive="false"/>
</dependencies>
</ivy-module>
3、web.xml:
代码语言:javascript复制<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://java.sun.com/xml/ns/javaee"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
id="core-services" version="3.0">
<display-name>d-c</display-name>
<welcome-file-list>
<welcome-file>index.html</welcome-file>
<welcome-file>index.htm</welcome-file>
<welcome-file>index.jsp</welcome-file>
<welcome-file>default.html</welcome-file>
<welcome-file>default.htm</welcome-file>
<welcome-file>default.jsp</welcome-file>
</welcome-file-list>
<!-- Spring -->
<servlet>
<servlet-name>mvc-dispatcher</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>WEB-INF/beans.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>mvc-dispatcher</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
</web-app>
4、beans.xml:
代码语言:javascript复制<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context"
xmlns:task="http://www.springframework.org/schema/task"
xmlns:elasticsearch="http://www.springframework.org/schema/data/elasticsearch"
xsi:schemaLocation="http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.xsd
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd">
<context:property-placeholder />
<context:annotation-config />
<context:component-scan base-package="com.dubbox.client" />
<import resource="dubbox.xml" />
<import resource="classpath:com/dubbox/service/beans.xml"/>
</beans>
5、dubbox.xml
代码语言:javascript复制<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context"
xmlns:dubbo="http://code.alibabatech.com/schema/dubbo"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.xsd
http://code.alibabatech.com/schema/dubbo
http://code.alibabatech.com/schema/dubbo/dubbo.xsd">
<context:property-placeholder />
<!-- 消费方应用名,用于计算依赖关系,不是匹配条件,不要与提供方一样 -->
<dubbo:application name="dubbox-client" />
<!-- 使用zookeeper注册中心暴露服务地址 -->
<dubbo:registry protocol="zookeeper" address="${zkHost:127.0.0.1:2181}" />
<!-- 调用的服务时的公共配置 -->
<dubbo:consumer
check="${dubbo.client.check:false}"
retries="${dubbo.client.retries:0}"
timeout="${dubbo.client.timeout:5000}" />
<dubbo:reference id="demoService" interface="com.dubbox.service.DemoService" />
</beans>
5、DemoClient.java:
代码语言:javascript复制package com.dubbox.client;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;
import com.dubbox.service.DemoService;
@RestController
@RequestMapping(value="/api")
public class DemoClient {
@Autowired
DemoService _demoService;
@RequestMapping(value="/greet")
public String greet(@RequestParam("name") String name){
System.out.println(_demoService.greet(name));
return _demoService.greet(name);
}
}
以上是客户端的全部代码,引用了服务端的xml文件获取接口;
测试Demo
1、启动zookeeper:
如开始所述,这是dubbox.xml所需的,用于注册服务;
下载zookeeper: 官网地址:http://zookeeper.apache.org/,解压文件,可能需要简单配置,点击bin文件夹下的zkServer.cmd,启动zookeeper;等待启动服务端和客户端;
2、启动服务端:
部署启动,ZooKeeper会收到消息;
3、启动客户端:
输入地址:http://ip:port/dubbox-client/api/greet?name='test',输出成功;
4、结束:
只是一个Demo而已;