Springboot3.X整合Dubbo3.XSpringCloudAlibaba微服务 2022.0 + Springboot3.X 集成 Dubbo实现对外调用http内部调用RPC

前言

近期自己新开了一套SpringCloud Alibaba微服务项目，接口使用了对外HTTP，内部RPC的设计，具体点说就是外部用户或客户端通过Nginx访问到Gateway网关再分发到各个服务，内部各个服务之间统一使用Dubbo RPC进行通信。下面是Springboot3.x集成Dubbo的分享：

1. 需要的关键依赖

org.apache.dubbo

dubbo-spring-boot-starter

log4j

log4j

3.1.6

org.springframework.cloud

spring-cloud-dependencies

2022.0.1

pom

import

com.alibaba.cloud

spring-cloud-alibaba-dependencies

2022.0.0.0-RC1

pom

import

2. 启动程序入口注解

2.1. 生产者

@EnableDubbo

@EnableAsync

@EnableFeignClients

@EnableDiscoveryClient

@SpringBootApplication

public class UserApplication {

public static void main(String[] args) {

SpringApplication.run(UserApplication.class, args);

}

}

2.2 消费者

@EnableDubbo

@EnableAsync

@EnableFeignClients

@EnableDiscoveryClient

@SpringBootApplication

public class AdminApplication {

public static void main(String[] args) {

SpringApplication.run(AdminApplication.class, args);

}

}

2.3 dubbo配置

dubbo:

application:

id: ${spring.application.name}

name: ${dubbo.application.id}

registry:

address: nacos://127.0.0.1:8848?username=nacos&password=houcloud

group: dubbo

metadata-report:

address: nacos://127.0.0.1:8848?username=nacos&password=houcloud

protocol:

name: dubbo

port: -1

config-center:

timeout: 8000

provider:

threads: 20000

threadpool: fixed

loadbalance: roundrobin

timeout: 5000

executes:

filter: customExceptionFilter,-exception

scan:

base-packages: com.houcloud.application.admin.rpc

consumer:

check: false

3. Dubbo 公共 interface

public interface RpcUserService {

// 删除用户令牌

Boolean removeUserToken(Long userId)

}

4. 提供者UserApplication实现Dubbo 公共 interface

@DubboService(interfaceClass = RpcUserService.class)

public class RpcUserServiceImpl implements RpcUserService {

@Resource

private UserRedisTokenStore userRedisTokenStore;

@Override

public Boolean removeUserToken(Long userId){

return userRedisTokenStore.removeByUserId(userId);

}

}

5. 消费者AdminApplication调用Dubbo 公共 interface

@DubboReference

private RpcUserService rpcUserService;

public Boolean lockUser(Long userId) {

boolean update = userService.lambdaUpdate().eq(User::getId, userId).set(User::getLocked, true).update();

if(!update){

return false

}

return rpcUserService.removeUserToken(userId);

}

启动报错

在集成Dubbo的过程中出现了java.lang.NoClassDefFoundError: org/springframework/beans/factory/config/InstantiationAwareBeanPostProcessorAdapter异常 第一反应是以为缺少jar包，补了好几个相关dubbo和nacos的包也无济于事

91 [main] ERROR [org.springframework.boot.SpringApplication] SpringApplication.java:820 - Application run failed

java.lang.NoClassDefFoundError: org/springframework/beans/factory/config/InstantiationAwareBeanPostProcessorAdapter

at java.base/java.lang.ClassLoader.defineClass1(Native Method)

at java.base/java.lang.ClassLoader.defineClass(ClassLoader.java:1012)

at java.base/java.security.SecureClassLoader.defineClass(SecureClassLoader.java:150)

at java.base/jdk.internal.loader.BuiltinClassLoader.defineClass(BuiltinClassLoader.java:862)

at java.base/jdk.internal.loader.BuiltinClassLoader.findClassOnClassPathOrNull(BuiltinClassLoader.java:760)

at java.base/jdk.internal.loader.BuiltinClassLoader.loadClassOrNull(BuiltinClassLoader.java:681)

at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:639)

at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:188)

解决问题

由于是新开项目，用的都是最新的版本，统一使用了2022版本的Springcloud，原因是因为最新Dubbo的3.1.x没有支持到Springboot3.x，所有需要用到 3.2.0-beta版本

org.apache.dubbo

dubbo-spring-boot-starter

log4j

log4j

3.2.0-beta.5

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