使用Spring Boot 与Dubbo集成,这里我之前尝试了使用注解的方式,简单的使用注解注册服务其实是没有问题的,但是当你涉及到使用注解的时候在服务里面引用事务,注入其他对象的时候,会有一些问题。于是我就果断放弃了注解了,使用的是XML,这里可能介绍的是Dubbo,但是如果使用Dubbox的话,基本上是兼容的。接下来,将说说使用XML的方式与Spring Boot在一起开发。
1.创建工程在pom.xml中加入依赖
创建工程名为:
(1)springboot-dubbo-provide
(2)springboot-dubbo-api
(3)springboot-dubbo-consume
springboot-dubbo-api工程主要是放一些service接口,用于提供给消费者使用 。springboot-dubbo-provide工程用于提供服务。 springboot-dubbo-consume工程为消费者。在springboot-dubbo-provide工程中打开pom.xml加入以下依赖,完整代码如下:
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< 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</ modelVersion >
< groupId >com.chengli</ groupId >
< artifactId >springboot-dubbo-provide</ artifactId >
< version >0.0.1-SNAPSHOT</ version >
< packaging >jar</ packaging >
< name >springboot-dubbo-provide</ name >
< url >http://maven.apache.org</ url >
< parent >
< groupId >org.springframework.boot</ groupId >
< artifactId >spring-boot-starter-parent</ artifactId >
< version >1.4.3.RELEASE</ version >
</ parent >
< properties >
< project.build.sourceEncoding >UTF-8</ project.build.sourceEncoding >
< java.version >1.8</ java.version >
< com.alibaba.dubbo.version >2.5.3</ com.alibaba.dubbo.version >
< org.apache.zookeeper.version >3.4.6</ org.apache.zookeeper.version >
< com.github.sgroschupf.zkclient.version >0.1</ com.github.sgroschupf.zkclient.version >
</ properties >
< dependencies >
< dependency >
< groupId >com.chengli</ groupId >
< artifactId >springboot-dubbo-api</ artifactId >
< version >0.0.1-SNAPSHOT</ version >
</ dependency >
< dependency >
< groupId >org.springframework.boot</ groupId >
< artifactId >spring-boot-starter</ artifactId >
</ dependency >
<!-- dubbo -->
< dependency >
< groupId >com.alibaba</ groupId >
< artifactId >dubbo</ artifactId >
< exclusions >
< exclusion >
< groupId >org.springframework</ groupId >
< artifactId >spring</ artifactId >
</ exclusion >
</ exclusions >
< version >${com.alibaba.dubbo.version}</ version >
</ dependency >
< dependency >
< groupId >org.apache.zookeeper</ groupId >
< artifactId >zookeeper</ artifactId >
< version >${org.apache.zookeeper.version}</ version >
</ dependency >
< dependency >
< groupId >com.github.sgroschupf</ groupId >
< artifactId >zkclient</ artifactId >
< version >${com.github.sgroschupf.zkclient.version}</ version >
</ dependency >
</ dependencies >
< build >
< plugins >
< plugin >
< groupId >org.springframework.boot</ groupId >
< artifactId >spring-boot-maven-plugin</ artifactId >
</ plugin >
</ plugins >
</ build >
</ project >
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打开springboot-dubbo-consume工程,在pom.xml中加入以下依赖,完整代码如下:
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< 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</ modelVersion >
< groupId >com.chengli</ groupId >
< artifactId >springboot-dubbo-consume</ artifactId >
< version >0.0.1-SNAPSHOT</ version >
< packaging >jar</ packaging >
< name >springboot-dubbo-consume</ name >
< url >http://maven.apache.org</ url >
< parent >
< groupId >org.springframework.boot</ groupId >
< artifactId >spring-boot-starter-parent</ artifactId >
< version >1.4.3.RELEASE</ version >
</ parent >
< properties >
< project.build.sourceEncoding >UTF-8</ project.build.sourceEncoding >
< java.version >1.8</ java.version >
< com.alibaba.dubbo.version >2.5.3</ com.alibaba.dubbo.version >
< org.apache.zookeeper.version >3.4.6</ org.apache.zookeeper.version >
< com.github.sgroschupf.zkclient.version >0.1</ com.github.sgroschupf.zkclient.version >
</ properties >
< dependencies >
< dependency >
< groupId >com.chengli</ groupId >
< artifactId >springboot-dubbo-api</ artifactId >
< version >0.0.1-SNAPSHOT</ version >
</ dependency >
< dependency >
< groupId >org.springframework.boot</ groupId >
< artifactId >spring-boot-starter-web</ artifactId >
</ dependency >
<!-- dubbo -->
< dependency >
< groupId >com.alibaba</ groupId >
< artifactId >dubbo</ artifactId >
< exclusions >
< exclusion >
< groupId >org.springframework</ groupId >
< artifactId >spring</ artifactId >
</ exclusion >
</ exclusions >
< version >${com.alibaba.dubbo.version}</ version >
</ dependency >
< dependency >
< groupId >org.apache.zookeeper</ groupId >
< artifactId >zookeeper</ artifactId >
< version >${org.apache.zookeeper.version}</ version >
</ dependency >
< dependency >
< groupId >com.github.sgroschupf</ groupId >
< artifactId >zkclient</ artifactId >
< version >${com.github.sgroschupf.zkclient.version}</ version >
</ dependency >
< dependency >
< groupId >org.springframework.boot</ groupId >
< artifactId >spring-boot-configuration-processor</ artifactId >
< optional >true</ optional >
</ dependency >
</ dependencies >
< build >
< plugins >
< plugin >
< groupId >org.springframework.boot</ groupId >
< artifactId >spring-boot-maven-plugin</ artifactId >
</ plugin >
</ plugins >
</ build >
</ project >
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2.Dubbo配置
2.1springboot-dubbo-provide服务提供者
(1)在springboot-dubbo-provide项目中创建入口启动类MainConfig,完整代码如下:
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package com.chengli.springboot;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
public class MainConfig {
public static void main(String[] args) {
SpringApplication.run(MainConfig. class , args);
try {
System.in.read();
} catch (Exception e) {
e.printStackTrace();
}
}
}
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(2)创建Dubbo配置类
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package com.chengli.springboot.dubbo;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.ImportResource;
import org.springframework.context.annotation.PropertySource;
@Configuration
@PropertySource ( "classpath:dubbo/dubbo.properties" )
@ImportResource ({ "classpath:dubbo/*.xml" })
public class DubboConfig {
}
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(3)创建Dubbo配置文件
在src/main/resources下新建文件夹dubbo,并加入以下配置:
dubbo-provider.xml内容如下:
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<? 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: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://code.alibabatech.com/schema/dubbo
http://code.alibabatech.com/schema/dubbo/dubbo.xsd">
<!-- 提供方应用信息,用于计算依赖关系 -->
< dubbo:application name = "${dubbo.application.name}" />
<!-- 注册中心暴露服务地址 -->
<!-- <dubbo:registry address="multicast://224.5.6.7:1234" /> -->
<!-- <dubbo:registry protocol="zookeeper" address="10.170.219.98:2181,10.173.55.173:2181" /> -->
< dubbo:registry protocol = "${dubbo.registry.protocol}" address = "${dubbo.registry.address}" />
<!-- 暴露服务 -->
< dubbo:protocol name = "${dubbo.protocol.name}" port = "${dubbo.protocol.port}" />
< dubbo:service interface = "com.chengli.springboot.example.service.ExampleService"
ref = "exampleServiceImpl" retries = "0" timeout = "6000" />
</ beans >
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注意:这里我发布的example服务是示例,具体的根据实际修改
(4)创建dubbo.properties
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#应用名称
dubbo.application.name=example-provider
#注册中心类型
dubbo.registry.protocol=zookeeper
#注册中心地址
dubbo.registry.address=127.0.0.1:2181
#暴露服务方式
dubbo.protocol.name=dubbo
#暴露服务端口
dubbo.protocol.port=20880
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2.2springboot-dubbo-consume服务消费者
(1)创建入口启动类MainConfig
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package com.chengli.springboot;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
public class MainConfig {
public static void main(String[] args) {
SpringApplication.run(MainConfig. class , args);
}
}
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(2)创建Dubbo配置类
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package com.chengli.springboot.dubbo;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.ImportResource;
import org.springframework.context.annotation.PropertySource;
@Configuration
@PropertySource ( "classpath:dubbo/dubbo.properties" )
@ImportResource ({ "classpath:dubbo/*.xml" })
public class DubboConfig {
}
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(3)创建Dubbo配置文件
在src/main/resources下新建文件夹dubbo,并加入以下配置:
dubbo-consume.xml内容如下:
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<? 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: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://code.alibabatech.com/schema/dubbo
http://code.alibabatech.com/schema/dubbo/dubbo.xsd">
<!-- 提供方应用信息,用于计算依赖关系 -->
< dubbo:application name = "${dubbo.application.name}" />
<!-- 注册中心暴露服务地址 -->
< dubbo:registry protocol = "${dubbo.registry.protocol}" address = "${dubbo.registry.address}" />
< dubbo:reference id = "axempleService" interface = "com.chengli.springboot.example.service.ExampleService" />
</ beans >
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(4)创建dubbo.properties
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#应用名称
dubbo.application.name=example-consume
#注册中心类型
dubbo.registry.protocol=zookeeper
#注册中心地址
dubbo.registry.address=127.0.0.1:2181
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到这里基本上就已经可以了,不过测试类的代码我就不贴上来了。只要在API中定义接口实现即可。使用Spring Boot 与Dubbo集成的时候,需要注意的是,不要使用Spring Boot提供的devtools热启动,因为devtools提供了两个ClassLoader,加载策略问题导致出现错误,无法启动。如果开发中需要热加载,那么使用Spring 提供的springloaded。
以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持服务器之家。
原文链接:http://blog.csdn.net/cl_andywin/article/details/54318903