Home >Java >javaTutorial >How to build Dubbo project with SpringBoot to implement the nth term of Fibonacci
Method 1: Create a new project directly in IDEA as shown:
Method 2: Create a new
in start.spring.io. Some children may have discovered that the Server URL of the first method is the second website, which is the same.
To create two new projects, the first project is as shown in the picture above, and the second project only needs to change the provider to consumer
The rest remains unchanged, open it through IDEA after decompression
provider project structure:
consumer project structure:
Please note that the locations of the two ServiceAPIs in the project, or the package names, must be strictly consistent, otherwise problems will occur later
If they are inconsistent, you can press them as needed as follows Make changes
xsd and place it in the specified directory:
C:\Users\username\.lemminx\cache\http\code. alibabatech.com\schema\dubbo
File:dubbo.xsd
The name that needs to be created is: spring-dubbo.xml
In the configuration file of provider, write:
<?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"> <!-- dubbo应用名称 --> <dubbo:application name="springboot-buddo-provider"/> <!-- 发布者 dubbo协议 --> <dubbo:protocol name="dubbo" port="20881"/> <!-- 定义bean --> <bean id="providerImpl" class="com.springdubbo.demo.springbootdubbo.apiImpl.ProviderImpl"/> <!-- dubbo服务 发布者发布服务 需要暴露的服务接口 --> <dubbo:service interface="com.springdubbo.demo.springbootdubbo.ServiceAPI" ref="providerImpl" registry="N/A"/> </beans>
In the configuration file of consumer, write:
<?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"> <!-- dubbo应用名称 --> <dubbo:application name="springboot-buddo-consumer"/> <!-- 远程服务调用代理 --> <dubbo:reference id="consumerImpl" interface="com.springdubbo.demo.springbootdubbo.ServiceAPI" url="dubbo://localhost:20881" /> </beans>
Add dependencies under the pom.xml of both projects:
<dependency> <groupId>com.alibaba.spring.boot</groupId> <artifactId>dubbo-spring-boot-starter</artifactId> <version>2.0.0</version> </dependency>
ProviderImpl
Don’t forget to add the Service annotation, and it must be dubbo’s Service
package com.springdubbo.demo.springbootdubbo.apiImpl; import com.alibaba.dubbo.config.annotation.Service; import com.springdubbo.demo.springbootdubbo.ServiceAPI; /** * @author wuyt * @data 2022/6/11 * @apiNote */ @Service public class ProviderImpl implements ServiceAPI { public String getMessage(String message) { return "springboot-dubbo-provider =>>>>>" + message; } public String getTheFeibN(int n) { //斐波那契数列第n项的实现逻辑 } }
ServiceAPI
package com.springdubbo.demo.springbootdubbo; /** * @author wuyt * @data 2022/6/11 * @apiNote */ public interface ServiceAPI { public String getMessage(String message); public String getTheFeibN(int n); }
SpringbootDubboApplication
Be sure to add the ImportResource annotation
package com.springdubbo.demo.springbootdubbo; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; import org.springframework.context.annotation.ImportResource; @SpringBootApplication @ImportResource("classpath:spring-dubbo.xml") public class SpringbootDubboApplication { public static void main(String[] args) { SpringApplication.run(SpringbootDubboApplication.class, args); } }
ServiceAPI
package com.springdubbo.demo.springbootdubbo; /** * @author wuyt * @data 2022/6/11 * @apiNote */ public interface ServiceAPI { public String getMessage(String message); public String getTheFeibN(int n); }
SpringbootDubboApplication
package com.springdubbo.demo.springbootdubbo; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; import org.springframework.context.ConfigurableApplicationContext; import org.springframework.context.annotation.ImportResource; @SpringBootApplication @ImportResource("classpath:spring-dubbo.xml") public class SpringbootDubboApplication { public static void main(String[] args) { ConfigurableApplicationContext count = SpringApplication.run(SpringbootDubboApplication.class, args); ServiceAPI impl = (ServiceAPI)count.getBean("consumerImpl"); // System.out.println(impl.getMessage("Hello dubbo")); System.out.println(impl.getTheFeibN(10)); } }
You can modify the port number of either provider or consumer
Modify the port number of the consumer running here:
First run the provider, then run the consumer
Result:
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