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Spring Boot 集成Dubbo框架实例

程序员文章站 2024-02-20 09:29:34
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...

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:

<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> 

打开springboot-dubbo-consume工程,在pom.xml中加入以下依赖,完整代码如下:

<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> 

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:

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(); 
    } 
  } 
} 

(2)创建dubbo配置类

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 { 
 
} 

(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:

<?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> 

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

#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 

2.2springboot-dubbo-consume服务消费者

(1)创建入口启动类mainconfig

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); 
  } 
} 

(2)创建dubbo配置类

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 { 
 
} 

(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:

<?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> 

(4)创建dubbo.properties

#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 

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。