Dubbo 3.0.3 + Nacos 2.0.3 + spring boot 2.3.6. Problems encountered in release integration
Dubbo 3.0.3 + Nacos 2.0.3 + spring boot 2.3.6.RELEASE integration
Because some of the company's old projects use rpc (a call toolkit encapsulated by HTTP client), considering the low performance, it is extremely difficult to maintain. Through comparison among many rpc frameworks, it is found that dubbo has launched version 3.0, and now all major enterprises adopt dubbo as the rpc framework. Therefore, we overturn the existing rpc and replace the rpc framework in the project with dubbo 3.0.3. After reading the posts of major websites and forums, we find that most of dubbo 2.x still uses zoomeeper as the rpc registration center. After learning spring cloud H version before, we found that nacos is also a good choice as a service registration center, so this upgrade also uses nacos 2.0
Project framework construction
Service provider
pom.xml
<?xml version="1.0" encoding="UTF-8"?>
<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>org.example</groupId>
<artifactId>demo-provider</artifactId>
<version>1.0.0-SNAPSHOT</version>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-dependencies</artifactId>
<version>2.3.6.RELEASE</version>
</parent>
<properties>
<java.version>1.8</java.version>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<spring-boot.version>2.3.6.RELEASE</spring-boot.version>
<mybatis-plus-spring-boot.version>3.4.1</mybatis-plus-spring-boot.version>
<druid-spring-boot.version>1.1.21</druid-spring-boot.version>
<mysql.version>5.1.47</mysql.version>
<dubbo.version>3.0.3</dubbo.version>
<logback.version>1.2.9</logback.version>
</properties>
<dependencies>
<!-- dubbo rpc Interface definition -->
<dependency>
<groupId>org.example</groupId>
<artifactId>demo-interface</artifactId>
<version>1.0.0-SNAPSHOT</version>
</dependency>
<!-- spring boot Related Toolkits -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-validation</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-configuration-processor</artifactId>
</dependency>
<!-- dubbo spring boot integrate -->
<dependency>
<groupId>org.apache.dubbo</groupId>
<artifactId>dubbo-spring-boot-starter</artifactId>
<version>${dubbo.version}</version>
</dependency>
<!-- ubbo-registry-nacos Secondary package has been connected with nacos2.0.3 Integration, so it is not necessary to import nacos-client Bag -->
<dependency>
<groupId>org.apache.dubbo</groupId>
<artifactId>dubbo-registry-nacos</artifactId>
<version>${dubbo.version}</version>
</dependency>
<!--MySQL 5.1.47-->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
</dependency>
<!--druid Database connection pool-->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid-spring-boot-starter</artifactId>
<version>${druid-spring-boot.version}</version>
</dependency>
<!-- mybatis plus -->
<dependency>
<groupId>com.baomidou</groupId>
<artifactId>mybatis-plus-boot-starter</artifactId>
<version>${mybatis-plus-spring-boot.version}</version>
</dependency>
<!--Hot deployment plug-in-->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
<scope>runtime</scope>
<optional>true</optional>
</dependency>
</dependencies>
<build>
<finalName>demo-provider</finalName>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<source>${java.version}</source>
<target>${java.version}</target>
<encoding>${project.build.sourceEncoding}</encoding>
</configuration>
</plugin>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<configuration>
<fork>true</fork>
<addResources>true</addResources>
<mainClass>org.example.DemoApplication</mainClass>
</configuration>
<executions>
<execution>
<id>repackage</id>
<goals>
<goal>repackage</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
</project>
application.yml
server:
port: 8080
spring:
application:
name: dubbo-demo-provider
jackson:
time-zone: GMT+8
date-format: yyyy-MM-dd HH:mm:ss
datasource:
type: com.alibaba.druid.pool.DruidDataSource
driver-class-name: com.mysql.jdbc.Driver
url: jdbc:mysql://127.0.0.1:3306/demo?serverTimezone=GMT%2B8&useUnicode=true&characterEncoding=utf-8&autoReconnect=true&autoReconnectForPools=true&useSSL=false
username: root
password: 123456
druid:
initialSize: 5
minIdle: 5
maxActive: 20
# Configure the time to get the connection waiting timeout
maxWait: 60000
# Configure how often to detect the idle connections that need to be closed. The unit is milliseconds
timeBetweenEvictionRunsMillis: 60000
# Configure the minimum lifetime of a connection in the pool, in milliseconds
minEvictableIdleTimeMillis: 300000
validationQuery: select 'x'
testWhileIdle: true
testOnBorrow: false
testOnReturn: false
# Open PSCache and specify the size of PSCache on each connection
poolPreparedStatements: true
maxPoolPreparedStatementPerConnectionSize: 20
# Configure the filters for monitoring statistics interception. After removing the filters, the monitoring interface sql cannot be counted. 'wall' is used for firewall
filters: stat,wall,slf4j
# Open the mergeSql function through the connectProperties property; Slow SQL record
connectionProperties: druid.stat.mergeSql=true;druid.stat.slowSqlMillis=5000
dubbo:
application:
name: dubbo-demo-provider
# When QOS is disabled, port conflicts may occur on the same machine
qos-enable: false
qos-accept-foreign-ip: false
scan:
# Scan rpc interface definition package
base-packages: org.example.demo.service
protocol:
name: dubbo
port: 8888
registry:
protocol: dubbo
address: nacos://127.0.0.1:8848
# Set timeout
timeout: 3000
# Configure namespace
parameters:
namespace: 88b66463-1685-40b3-ba9c-7b25e526dcfb
# Service grouping
group: demo
mybatis-plus:
mapper-locations: classpath:/mapper/**Mapper.xml
type-aliases-package: org.example.demo.entity #Package of all Entity alias classes
configuration:
log-impl: org.apache.ibatis.logging.slf4j.Slf4jImpl
logging:
level:
org.example.demo: debug
DemoServiceImpl.java
@Slf4j
@DubboService(version = "1.0")
public class DemoServiceImpl implements DemoService{
@Override
public String test() {
log.info("Hello Word");
return "Hello Word";
}
}
Service consumers
pom.xml
<?xml version="1.0" encoding="UTF-8"?>
<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>org.example</groupId>
<artifactId>demo-consumer</artifactId>
<version>1.0.0-SNAPSHOT</version>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-dependencies</artifactId>
<version>2.3.6.RELEASE</version>
</parent>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<java.version>1.8</java.version>
<dubbo.version>3.0.3</dubbo.version>
<logback.version>1.2.9</logback.version>
</properties>
<dependencies>
<dependency>
<groupId>org.example</groupId>
<artifactId>demo-interface</artifactId>
<version>1.0.0-SNAPSHOT</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-validation</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-configuration-processor</artifactId>
</dependency>
<!-- dubbo spring boot integrate -->
<dependency>
<groupId>org.apache.dubbo</groupId>
<artifactId>dubbo-spring-boot-starter</artifactId>
<version>${dubbo.version}</version>
</dependency>
<!-- Nacos rely on -->
<dependency>
<groupId>org.apache.dubbo</groupId>
<artifactId>dubbo-registry-nacos</artifactId>
<version>${dubbo.version}</version>
</dependency>
<!--Hot deployment plug-in-->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
<scope>runtime</scope>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<finalName>demo-consumer</finalName>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<source>${java.version}</source>
<target>${java.version}</target>
<encoding>${project.build.sourceEncoding}</encoding>
</configuration>
</plugin>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<configuration>
<!-- The main startup class of the program, i.e@SpringBootApplication Notes, including main Class of method -->
<mainClass>org.example.demo.DemoApiApplication</mainClass>
</configuration>
<executions>
<execution>
<goals>
<goal>repackage</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
</project>
application.yml
server:
port: 8181
spring:
application:
name: dubbo-demo-consumer
main:
# Solve the problem of Bean duplicate definition
allow-bean-definition-overriding: true
jackson:
time-zone: GMT+8
date-format: yyyy-MM-dd HH:mm:ss
dubbo:
application:
name: dubbo-demo-consumer
# When QOS is disabled, port conflicts may occur on the same machine
qos-enable: false
qos-accept-foreign-ip: false
registry:
address: nacos://127.0.0.1:8848
# Configure namespace
parameters:
namespace: 88b66463-1685-40b3-ba9c-7b25e526dcfb
use-as-metadata-center: false
use-as-config-center: false
// Service grouping
group: demo
consumer:
# Service connection timeout
timeout: 3000
# Cancel service startup check
check: false
logging:
level:
org.example.demo: debug
ConsumerService.java
@Slf4j
@Service
public class ConsumerService{
@DubboReference(
version = "1.0",
loadbalance = "roundrobin"
)
private DemoService demoService;
/**
* Complete the service call here
*/
public void test() {
try {
String msg = demoService.test();
log.info("rpc The data obtained by calling is:{}", msg)
} catch (RpcException e) {
log.error("rpc Failed to call data. The error message is:", e);
}
return null;
}
}
There are no special requirements. So far, the configuration is complete and you can play happily
Duplicate class org/apache/dubbo/remoting/exchange/Exchangers.class in 2 jar
Duplicate class org/apache/dubbo/common/Version.class in 2 jar
Due to the fatal vulnerability of a popular log (log4j and log4j2) recently, it is necessary to repair the log4j related vulnerability in the production project. Originally, I laughed secretly after I first knew the vulnerability of log4j2, because the projects affected by this vulnerability used log4j2 core Jar, for example, spring-boot-starter-log4j2 related dependencies are commonly applied in the project, but spring boot's log4j2 is not used in my project, so I'm glad in secret. The older project uses spring MVC 4.2.8, the log component uses slf4j+log4j, and the spring boot project uses the official log component library Logback. But not long after the log4j2 vulnerability appeared, Logback also exploded, so it had to be upgraded...
logback vulnerability: https://mp.weixin.qq.com/s/y10RXst0gRNZzmLyRt0GYA
First of all, the logback used by spring boot 2.3.6 is 1.2.3
You need to upgrade logback to the latest stable version (1.2.10)
log4j2 needs to be upgraded to the latest stable version 2.17.1 (depending on the situation)
Check the key for the currently dependent version specified in spring boot dependencies.
Rewrite the configuration in the current project, such as the following code, to replace the default version number.
<properties>
<logback.version>1.2.10</logback.version>
<!-- Determine whether to configure the latest dependency according to the related dependency -->
<log4j2.version>2.17.1</log4j2.version>
</properties>
After the replacement, it is found that there are still log4j packages in the project. After checking the dependencies, it is found that log4j 1.2.6 is used in Dubbo registry Nacos. It is removed from the pom of the current project.
There is a misunderstanding here, that is, there is no security problem with log4j API itself. The problem is with log4j core, and dubbo does not rely on the package related to the vulnerability in version 3.0.x, so it does not need to be removed.
Reference address: https://github.com/apache/dubbo/issues/9380
The following problems are caused by the removal of the log4j dependency package (please ignore those that have not been removed)
<dependency>
<groupId>org.apache.dubbo</groupId>
<artifactId>dubbo-registry-nacos</artifactId>
<version>${dubbo.version}</version>
<exclusions>
<exclusion>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
</exclusion>
</exclusions>
</dependency>
Start the project and find the error message
First error
2021-12-31 16:39:24.633 ERROR 7440 --- [ restartedMain] org.apache.dubbo.common.Version : [DUBBO] Duplicate class org/apache/dubbo/common/Version.class in 2 jar [file:/F:/repository/org/apache/dubbo/dubbo/3.0.3/dubbo-3.0.3.jar!/org/apache/dubbo/common/Version.class, file:/F:/repository/org/apache/dubbo/dubbo-common/3.0.3/dubbo-common-3.0.3.jar!/org/apache/dubbo/common/Version.class], dubbo version: 3.0.3, current host: 192.168.28.1 2021-12-31 16:39:24.638 INFO 7440 --- [ restartedMain] d.s.b.c.e.WelcomeLogoApplicationListener :
Second error
2021-12-31 16:39:32.886 WARN 7440 --- [ restartedMain] o.a.d.r.c.r.mesh.route.MeshRuleManager : [DUBBO] Doesn't support Configuration!, dubbo version: 3.0.3, current host: 192.168.28.1 2021-12-31 16:39:32.897 ERROR 7440 --- [ restartedMain] org.apache.dubbo.common.Version : [DUBBO] Duplicate class org/apache/dubbo/remoting/exchange/Exchangers.class in 2 jar [file:/F:/repository/org/apache/dubbo/dubbo/3.0.3/dubbo-3.0.3.jar!/org/apache/dubbo/remoting/exchange/Exchangers.class, file:/F:/repository/org/apache/dubbo/dubbo-remoting-api/3.0.3/dubbo-remoting-api-3.0.3.jar!/org/apache/dubbo/remoting/exchange/Exchangers.class], dubbo version: 3.0.3, current host: 192.168.28.1 2021-12-31 16:39:32.908 ERROR 7440 --- [ restartedMain] org.apache.dubbo.common.Version : [DUBBO] Duplicate class org/apache/dubbo/remoting/Transporters.class in 2 jar [file:/F:/repository/org/apache/dubbo/dubbo/3.0.3/dubbo-3.0.3.jar!/org/apache/dubbo/remoting/Transporters.class, file:/F:/repository/org/apache/dubbo/dubbo-remoting-api/3.0.3/dubbo-remoting-api-3.0.3.jar!/org/apache/dubbo/remoting/Transporters.class], dubbo version: 3.0.3, current host: 192.168.28.1 2021-12-31 16:39:32.908 ERROR 7440 --- [ restartedMain] org.apache.dubbo.common.Version : [DUBBO] Duplicate class org/apache/dubbo/remoting/RemotingException.class in 2 jar [file:/F:/repository/org/apache/dubbo/dubbo-remoting-api/3.0.3/dubbo-remoting-api-3.0.3.jar!/org/apache/dubbo/remoting/RemotingException.class, file:/F:/repository/org/apache/dubbo/dubbo/3.0.3/dubbo-3.0.3.jar!/org/apache/dubbo/remoting/RemotingException.class], dubbo version: 3.0.3, current host: 192.168.28.1
resolvent:
When dubbo related dependencies are introduced, dependencies will be passed, and related conflicting resources must be exclude d
reference resources: https://github.com/apache/dubbo-spring-boot-project/issues/227
<dependency>
<groupId>org.apache.dubbo</groupId>
<artifactId>dubbo-registry-nacos</artifactId>
<version>${dubbo.version}</version>
<exclusions>
<exclusion>
<groupId>org.apache.dubbo</groupId>
<artifactId>dubbo-common</artifactId>
</exclusion>
<exclusion>
<groupId>org.apache.dubbo</groupId>
<artifactId>dubbo-remoting-api</artifactId>
</exclusion>
<exclusion>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
</exclusion>
</exclusions>
</dependency>
[dubbo] the metadata report was not initialized.
Removing log4j causes dubbo startup error
2021-12-31 16:39:33.247 WARN 7440 --- [ restartedMain] o.a.d.r.client.ServiceDiscoveryRegistry : [DUBBO] Cannot find app mapping for service tm.ucp.service.MeetingRecordingService, will not migrate., dubbo version: 3.0.3, current host: 192.168.28.1 java.lang.IllegalStateException: the metadata report was not initialized. at org.apache.dubbo.metadata.report.MetadataReportInstance.checkInit(MetadataReportInstance.java:88) ~[dubbo-3.0.3.jar:3.0.3] at org.apache.dubbo.metadata.report.MetadataReportInstance.getMetadataReport(MetadataReportInstance.java:77) ~[dubbo-3.0.3.jar:3.0.3] at org.apache.dubbo.registry.client.metadata.MetadataServiceNameMapping.getAndListen(MetadataServiceNameMapping.java:107) ~[dubbo-3.0.3.jar:3.0.3] at org.apache.dubbo.metadata.AbstractServiceNameMapping.getAndListenServices(AbstractServiceNameMapping.java:101) ~[dubbo-3.0.3.jar:3.0.3] at org.apache.dubbo.registry.client.ServiceDiscoveryRegistry.doSubscribe(ServiceDiscoveryRegistry.java:215) [dubbo-3.0.3.jar:3.0.3] at org.apache.dubbo.registry.client.ServiceDiscoveryRegistry.subscribe(ServiceDiscoveryRegistry.java:204) [dubbo-3.0.3.jar:3.0.3] at org.apache.dubbo.registry.ListenerRegistryWrapper.subscribe(ListenerRegistryWrapper.java:109) [dubbo-3.0.3.jar:3.0.3] at org.apache.dubbo.registry.integration.DynamicDirectory.subscribe(DynamicDirectory.java:160) [dubbo-3.0.3.jar:3.0.3] at org.apache.dubbo.registry.client.ServiceDiscoveryRegistryDirectory.subscribe(ServiceDiscoveryRegistryDirectory.java:104) [dubbo-3.0.3.jar:3.0.3] at org.apache.dubbo.registry.integration.RegistryProtocol.doCreateInvoker(RegistryProtocol.java:557) [dubbo-3.0.3.jar:3.0.3] at org.apache.dubbo.registry.integration.InterfaceCompatibleRegistryProtocol.getServiceDiscoveryInvoker(InterfaceCompatibleRegistryProtocol.java:65) [dubbo-3.0.3.jar:3.0.3] at org.apache.dubbo.registry.client.migration.MigrationInvoker.refreshServiceDiscoveryInvoker(MigrationInvoker.java:424) [dubbo-3.0.3.jar:3.0.3] at org.apache.dubbo.registry.client.migration.MigrationInvoker.migrateToApplicationFirstInvoker(MigrationInvoker.java:240) [dubbo-3.0.3.jar:3.0.3] at org.apache.dubbo.registry.client.migration.MigrationRuleHandler.refreshInvoker(MigrationRuleHandler.java:72) [dubbo-3.0.3.jar:3.0.3] at org.apache.dubbo.registry.client.migration.MigrationRuleHandler.doMigrate(MigrationRuleHandler.java:56) [dubbo-3.0.3.jar:3.0.3] at org.apache.dubbo.registry.client.migration.MigrationRuleListener.onRefer(MigrationRuleListener.java:233) [dubbo-3.0.3.jar:3.0.3] at org.apache.dubbo.registry.integration.RegistryProtocol.interceptInvoker(RegistryProtocol.java:526) [dubbo-3.0.3.jar:3.0.3] at org.apache.dubbo.registry.integration.RegistryProtocol.doRefer(RegistryProtocol.java:495) [dubbo-3.0.3.jar:3.0.3] at org.apache.dubbo.registry.integration.RegistryProtocol.refer(RegistryProtocol.java:480) [dubbo-3.0.3.jar:3.0.3] at org.apache.dubbo.qos.protocol.QosProtocolWrapper.refer(QosProtocolWrapper.java:83) [dubbo-3.0.3.jar:3.0.3] at org.apache.dubbo.rpc.protocol.ProtocolListenerWrapper.refer(ProtocolListenerWrapper.java:74) [dubbo-3.0.3.jar:3.0.3] at org.apache.dubbo.rpc.cluster.filter.ProtocolFilterWrapper.refer(ProtocolFilterWrapper.java:71) [dubbo-3.0.3.jar:3.0.3] at org.apache.dubbo.rpc.protocol.ProtocolSerializationWrapper.refer(ProtocolSerializationWrapper.java:52) [dubbo-3.0.3.jar:3.0.3] at org.apache.dubbo.rpc.Protocol$Adaptive.refer(Protocol$Adaptive.java) [dubbo-3.0.3.jar:3.0.3] at org.apache.dubbo.config.ReferenceConfig.createInvokerForRemote(ReferenceConfig.java:469) [dubbo-3.0.3.jar:3.0.3] at org.apache.dubbo.config.ReferenceConfig.createProxy(ReferenceConfig.java:380) [dubbo-3.0.3.jar:3.0.3] at org.apache.dubbo.config.ReferenceConfig.init(ReferenceConfig.java:267) [dubbo-3.0.3.jar:3.0.3] at org.apache.dubbo.config.ReferenceConfig.get(ReferenceConfig.java:204) [dubbo-3.0.3.jar:3.0.3] at org.apache.dubbo.config.spring.ReferenceBean.getCallProxy(ReferenceBean.java:348) [dubbo-3.0.3.jar:3.0.3] at org.apache.dubbo.config.spring.ReferenceBean.access$100(ReferenceBean.java:98) [dubbo-3.0.3.jar:3.0.3] at org.apache.dubbo.config.spring.ReferenceBean$DubboReferenceLazyInitTargetSource.createObject(ReferenceBean.java:355) [dubbo-3.0.3.jar:3.0.3] at org.springframework.aop.target.AbstractLazyCreationTargetSource.getTarget(AbstractLazyCreationTargetSource.java:88) [spring-aop-5.2.11.RELEASE.jar:5.2.11.RELEASE] at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:192) [spring-aop-5.2.11.RELEASE.jar:5.2.11.RELEASE] at com.sun.proxy.$Proxy142.listByUntreated(Unknown Source) [na:na] at tm.mye.mobile.rpc.server.GroupMeetingServiceImpl.getMeetingRecordingByUntreated(GroupMeetingServiceImpl.java:192) [classes/:na] at tm.mye.mobile.uap.server.TaskService.scheduleTask(TaskService.java:41) [classes/:na] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_151] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_151] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_151] at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_151] at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor$LifecycleElement.invoke(InitDestroyAnnotationBeanPostProcessor.java:389) [spring-beans-5.2.11.RELEASE.jar:5.2.11.RELEASE] at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor$LifecycleMetadata.invokeInitMethods(InitDestroyAnnotationBeanPostProcessor.java:333) [spring-beans-5.2.11.RELEASE.jar:5.2.11.RELEASE] at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor.postProcessBeforeInitialization(InitDestroyAnnotationBeanPostProcessor.java:157) [spring-beans-5.2.11.RELEASE.jar:5.2.11.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyBeanPostProcessorsBeforeInitialization(AbstractAutowireCapableBeanFactory.java:415) [spring-beans-5.2.11.RELEASE.jar:5.2.11.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1786) [spring-beans-5.2.11.RELEASE.jar:5.2.11.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:594) [spring-beans-5.2.11.RELEASE.jar:5.2.11.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:516) [spring-beans-5.2.11.RELEASE.jar:5.2.11.RELEASE] at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:324) [spring-beans-5.2.11.RELEASE.jar:5.2.11.RELEASE] at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) ~[spring-beans-5.2.11.RELEASE.jar:5.2.11.RELEASE] at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:322) [spring-beans-5.2.11.RELEASE.jar:5.2.11.RELEASE] at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:207) [spring-beans-5.2.11.RELEASE.jar:5.2.11.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.resolveBeanByName(AbstractAutowireCapableBeanFactory.java:453) [spring-beans-5.2.11.RELEASE.jar:5.2.11.RELEASE] at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.autowireResource(CommonAnnotationBeanPostProcessor.java:527) ~[spring-context-5.2.11.RELEASE.jar:5.2.11.RELEASE] at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.getResource(CommonAnnotationBeanPostProcessor.java:497) ~[spring-context-5.2.11.RELEASE.jar:5.2.11.RELEASE] at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor$ResourceElement.getResourceToInject(CommonAnnotationBeanPostProcessor.java:650) ~[spring-context-5.2.11.RELEASE.jar:5.2.11.RELEASE] at org.springframework.beans.factory.annotation.InjectionMetadata$InjectedElement.inject(InjectionMetadata.java:229) ~[spring-beans-5.2.11.RELEASE.jar:5.2.11.RELEASE] at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:119) ~[spring-beans-5.2.11.RELEASE.jar:5.2.11.RELEASE] at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.postProcessProperties(CommonAnnotationBeanPostProcessor.java:318) ~[spring-context-5.2.11.RELEASE.jar:5.2.11.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1420) [spring-beans-5.2.11.RELEASE.jar:5.2.11.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:593) [spring-beans-5.2.11.RELEASE.jar:5.2.11.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:516) [spring-beans-5.2.11.RELEASE.jar:5.2.11.RELEASE] at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:324) [spring-beans-5.2.11.RELEASE.jar:5.2.11.RELEASE] at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) ~[spring-beans-5.2.11.RELEASE.jar:5.2.11.RELEASE] at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:322) [spring-beans-5.2.11.RELEASE.jar:5.2.11.RELEASE] at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:207) [spring-beans-5.2.11.RELEASE.jar:5.2.11.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.resolveBeanByName(AbstractAutowireCapableBeanFactory.java:453) [spring-beans-5.2.11.RELEASE.jar:5.2.11.RELEASE] at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.autowireResource(CommonAnnotationBeanPostProcessor.java:527) ~[spring-context-5.2.11.RELEASE.jar:5.2.11.RELEASE] at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.getResource(CommonAnnotationBeanPostProcessor.java:497) ~[spring-context-5.2.11.RELEASE.jar:5.2.11.RELEASE] at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor$ResourceElement.getResourceToInject(CommonAnnotationBeanPostProcessor.java:650) ~[spring-context-5.2.11.RELEASE.jar:5.2.11.RELEASE] at org.springframework.beans.factory.annotation.InjectionMetadata$InjectedElement.inject(InjectionMetadata.java:229) ~[spring-beans-5.2.11.RELEASE.jar:5.2.11.RELEASE] at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:119) ~[spring-beans-5.2.11.RELEASE.jar:5.2.11.RELEASE] at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.postProcessProperties(CommonAnnotationBeanPostProcessor.java:318) ~[spring-context-5.2.11.RELEASE.jar:5.2.11.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1420) [spring-beans-5.2.11.RELEASE.jar:5.2.11.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:593) [spring-beans-5.2.11.RELEASE.jar:5.2.11.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:516) [spring-beans-5.2.11.RELEASE.jar:5.2.11.RELEASE] at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:324) [spring-beans-5.2.11.RELEASE.jar:5.2.11.RELEASE] at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) ~[spring-beans-5.2.11.RELEASE.jar:5.2.11.RELEASE] at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:322) [spring-beans-5.2.11.RELEASE.jar:5.2.11.RELEASE] at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202) [spring-beans-5.2.11.RELEASE.jar:5.2.11.RELEASE] at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:897) ~[spring-beans-5.2.11.RELEASE.jar:5.2.11.RELEASE] at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:879) ~[spring-context-5.2.11.RELEASE.jar:5.2.11.RELEASE] at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:551) ~[spring-context-5.2.11.RELEASE.jar:5.2.11.RELEASE] at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:143) ~[spring-boot-2.3.6.RELEASE.jar:2.3.6.RELEASE] at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:758) ~[spring-boot-2.3.6.RELEASE.jar:2.3.6.RELEASE] at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:750) ~[spring-boot-2.3.6.RELEASE.jar:2.3.6.RELEASE] at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:405) ~[spring-boot-2.3.6.RELEASE.jar:2.3.6.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:315) ~[spring-boot-2.3.6.RELEASE.jar:2.3.6.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1237) ~[spring-boot-2.3.6.RELEASE.jar:2.3.6.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1226) ~[spring-boot-2.3.6.RELEASE.jar:2.3.6.RELEASE] at tm.mye.mobile.MobileApiApplication.main(MobileApiApplication.java:20) ~[classes/:na] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_151] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_151] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_151] at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_151] at org.springframework.boot.devtools.restart.RestartLauncher.run(RestartLauncher.java:49) ~[spring-boot-devtools-2.3.6.RELEASE.jar:2.3.6.RELEASE]
Resolve metadata report initialization error:
Modify project application.yml
dubbo:
registry:
address: nacos://127.0.0.1:8848
# Configure dubbo metadata
metadata-report:
address: nacos://127.0.0.1:8848
group: demo
The metadata center is used to store information about service providers and consumers, such as dubbo version, service interface information (including method name, parameter table, return value type), etc.