spring boot 集成dubbo-编程知识

本demo使用spring boot 2.4.1版本集成 dubbo 2.7.15

1.创建maven项目及其子模块

父工程pom.xml

<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 https://maven.apache.org/xsd/maven-4.0.0.xsd"><modelVersion>4.0.0</modelVersion><groupId>com.lee.demo.dubbo.demo</groupId><artifactId>coupon-platform-normal-springboot</artifactId><version>1.0-SNAPSHOT</version><packaging>pom</packaging><modules><module>coupon-service-api</module><module>coupon-service-provider</module><module>user-service-api</module><module>user-service-provider</module><module>coupon-portal</module></modules><properties><project.build.sourceEncoding>UTF-8</project.build.sourceEncoding><maven.compiler.source>1.8</maven.compiler.source><maven.compiler.target>1.8</maven.compiler.target><spring-boot.version>2.4.1</spring-boot.version><dubbo.version>2.7.15</dubbo.version></properties><dependencies><dependency><groupId>junit</groupId><artifactId>junit</artifactId><version>4.11</version><scope>test</scope></dependency></dependencies><dependencyManagement><dependencies><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-dependencies</artifactId><version>${spring-boot.version}</version><type>pom</type><scope>import</scope></dependency><dependency><groupId>com.lee.demo.dubbo.demo.userapi</groupId><artifactId>user-service-api</artifactId><version>1.0-SNAPSHOT</version></dependency><dependency><groupId>com.lee.demo.dubbo.demo.couponapi</groupId><artifactId>coupon-service-api</artifactId> <version>1.0-SNAPSHOT</version></dependency><dependency><groupId>org.apache.dubbo</groupId><artifactId>dubbo-dependencies-zookeeper</artifactId><version>2.7.15</version><type>pom</type></dependency><dependency><groupId>org.apache.dubbo</groupId><artifactId>dubbo-bom</artifactId><version>${dubbo.version}</version><type>pom</type><scope>import</scope></dependency></dependencies></dependencyManagement>
</project>

2.其中coupon-service-api为接口

3.coupon-service-provider为接口实现类，注意，其启动类需要添加注解@EnableDubbo

pom.xml

<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 https://maven.apache.org/xsd/maven-4.0.0.xsd"><modelVersion>4.0.0</modelVersion><parent><groupId>com.lee.demo.dubbo.demo</groupId><artifactId>coupon-platform-normal-springboot</artifactId><version>1.0-SNAPSHOT</version></parent><groupId>com.lee.demo.dubbo.demo.couponprovider</groupId><artifactId>coupon-service-provider</artifactId><name>coupon-service-provider</name><description>coupon-service-provider</description><properties><java.version>1.8</java.version><project.build.sourceEncoding>UTF-8</project.build.sourceEncoding><project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding></properties><dependencies><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter</artifactId></dependency> <dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-test</artifactId><scope>test</scope><exclusions><exclusion><groupId>org.junit.vintage</groupId><artifactId>junit-vintage-engine</artifactId></exclusion></exclusions></dependency> <dependency><groupId>org.apache.dubbo</groupId><artifactId>dubbo-dependencies-zookeeper</artifactId><type>pom</type></dependency><dependency><groupId>org.apache.dubbo</groupId><artifactId>dubbo-spring-boot-starter</artifactId></dependency> <dependency><groupId>com.lee.demo.dubbo.demo.couponapi</groupId><artifactId>coupon-service-api</artifactId> </dependency></dependencies><build><plugins><plugin><groupId>org.apache.maven.plugins</groupId><artifactId>maven-compiler-plugin</artifactId><version>3.8.1</version><configuration><source>1.8</source><target>1.8</target><encoding>UTF-8</encoding></configuration></plugin><plugin><groupId>org.springframework.boot</groupId><artifactId>spring-boot-maven-plugin</artifactId><version>2.3.7.RELEASE</version><configuration><mainClass>com.lee.demo.dubbo.demo.CouponServiceProviderApplication</mainClass></configuration><executions><execution><id>repackage</id><goals><goal>repackage</goal></goals></execution></executions></plugin></plugins></build>
</project>

配置文件

实现类添加注解@DubboService

4.coupon-portal为web访问层，配置如下

pom.xml

<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 https://maven.apache.org/xsd/maven-4.0.0.xsd"><modelVersion>4.0.0</modelVersion><parent><groupId>com.lee.demo.dubbo.demo</groupId><artifactId>coupon-platform-normal-springboot</artifactId><version>1.0-SNAPSHOT</version></parent><groupId>com.lee.demo.dubbo.demo.portal</groupId><artifactId>coupon-portal</artifactId><name>coupon-portal</name><description>coupon-portal</description><properties><java.version>1.8</java.version><project.build.sourceEncoding>UTF-8</project.build.sourceEncoding><project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding></properties><dependencies><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-web</artifactId></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-test</artifactId><scope>test</scope><exclusions><exclusion><groupId>org.junit.vintage</groupId><artifactId>junit-vintage-engine</artifactId></exclusion></exclusions></dependency> <dependency><groupId>com.lee.demo.dubbo.demo.userapi</groupId><artifactId>user-service-api</artifactId></dependency> <dependency><groupId>org.apache.dubbo</groupId><artifactId>dubbo-spring-boot-starter</artifactId></dependency><dependency><groupId>org.apache.dubbo</groupId><artifactId>dubbo-dependencies-zookeeper</artifactId><type>pom</type></dependency></dependencies><build><plugins><plugin><groupId>org.apache.maven.plugins</groupId><artifactId>maven-compiler-plugin</artifactId><version>3.8.1</version><configuration><source>1.8</source><target>1.8</target><encoding>UTF-8</encoding></configuration></plugin><plugin><groupId>org.springframework.boot</groupId><artifactId>spring-boot-maven-plugin</artifactId><version>2.3.7.RELEASE</version><configuration><mainClass>com.lee.demo.dubbo.demo.CouponPortalApplication</mainClass></configuration><executions><execution><id>repackage</id><goals><goal>repackage</goal></goals></execution></executions></plugin></plugins></build></project>

启动类