nacos-spring-boot-project
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Published
20 hours ago •
nacos-group
nacos-group
spring boot nacos can not work... Erroro:Caused by: java.lang.IllegalArgumentException: Could not resolve placeholder 'aversion' in value "${aversion}"
xml
This is my 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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.2.6.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>club.hicode</groupId>
<artifactId>nacos-demo</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>nacos-demo</name>
<description>Demo project for Spring Boot</description>
<properties>
<java.version>1.8</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>com.alibaba.boot</groupId>
<artifactId>nacos-config-spring-boot-starter</artifactId>
<version>0.2.7</version>
</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>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
properties
This is my application.properties
server.port=8889
spring.application.name=nacos-demo
spring.profiles.active=dev
# nacos config
nacos.config.server-addr=localhost:8848
nacos.config.namespace=60bb6a4a-c31f-49fa-95ee-4512238a6119
nacos.config.group=ubirth
nacos.config.data-id=ub-config.properties
nacos.config.remote-first=true
nacos.config.password=nacos
nacos.config.username=nacos
nacos.config.auto-refresh=true
nacos.config.type=properties
Code
My code...
@SpringBootApplication
public class NacosDemoApplication implements CommandLineRunner {
public static void main(String[] args) {
SpringApplication.run(NacosDemoApplication.class, args);
}
@NacosValue(value = "${aversion}", autoRefreshed = true)
private String version;
@Override
public void run(String... args) throws Exception {
System.out.println(version);
}
}
Nacos Server
Data Id:ub-config.properties
Group:ubirth
Type:Properties
Content: aversion=v90
Error
but console show error like this
. ____ _ __ _ _
/\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
\\/ ___)| |_)| | | | | || (_| | ) ) ) )
' |____| .__|_| |_|_| |_\__, | / / / /
=========|_|==============|___/=/_/_/_/
:: Spring Boot :: (v2.2.6.RELEASE)
2020-05-26 23:00:58.447 INFO 6067 --- [ main] c.a.b.n.c.u.NacosConfigPropertiesUtils : nacosConfigProperties : NacosConfigProperties{serverAddr='localhost:8848', contextPath='null', encode='null', endpoint='null', namespace='60bb6a4a-c31f-49fa-95ee-4512238a6119', accessKey='null', secretKey='null', ramRoleName='null', autoRefresh=true, dataId='ub-config.properties', dataIds='null', group='ubirth', type=PROPERTIES, maxRetry='null', configLongPollTimeout='null', configRetryTime='null', enableRemoteSyncConfig=false, extConfig=[], bootstrap=Bootstrap{enable=false, logEnable=false}}
2020-05-26 23:00:58.451 INFO 6067 --- [ main] NacosConfigApplicationContextInitializer : [Nacos Config Boot] : The preload configuration is not enabled
2020-05-26 23:00:58.460 INFO 6067 --- [ main] c.hicode.nacosdemo.NacosDemoApplication : Starting NacosDemoApplication on 192.168.0.12 with PID 6067 (/Users/alistar/Downloads/nacos-demo/target/classes started by alistar in /Users/alistar/Downloads/nacos-demo)
2020-05-26 23:00:58.460 INFO 6067 --- [ main] c.hicode.nacosdemo.NacosDemoApplication : The following profiles are active: dev
2020-05-26 23:01:00.063 INFO 6067 --- [ main] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat initialized with port(s): 8889 (http)
2020-05-26 23:01:00.071 INFO 6067 --- [ main] o.apache.catalina.core.StandardService : Starting service [Tomcat]
2020-05-26 23:01:00.072 INFO 6067 --- [ main] org.apache.catalina.core.StandardEngine : Starting Servlet engine: [Apache Tomcat/9.0.33]
2020-05-26 23:01:00.151 INFO 6067 --- [ main] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring embedded WebApplicationContext
2020-05-26 23:01:00.151 INFO 6067 --- [ main] o.s.web.context.ContextLoader : Root WebApplicationContext: initialization completed in 1109 ms
2020-05-26 23:01:00.226 WARN 6067 --- [ main] ConfigServletWebServerApplicationContext : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'nacosDemoApplication': Injection of @com.alibaba.nacos.api.config.annotation.NacosValue dependencies is failed; nested exception is java.lang.IllegalArgumentException: Could not resolve placeholder 'aversion' in value "${aversion}"
2020-05-26 23:01:00.226 INFO 6067 --- [ main] .c.NacosValueAnnotationBeanPostProcessor : class com.alibaba.nacos.spring.context.annotation.config.NacosValueAnnotationBeanPostProcessor was destroying!
2020-05-26 23:01:00.226 INFO 6067 --- [ main] AnnotationNacosInjectedBeanPostProcessor : class com.alibaba.nacos.spring.beans.factory.annotation.AnnotationNacosInjectedBeanPostProcessor was destroying!
2020-05-26 23:01:00.228 INFO 6067 --- [ main] o.apache.catalina.core.StandardService : Stopping service [Tomcat]
2020-05-26 23:01:00.246 INFO 6067 --- [ main] ConditionEvaluationReportLoggingListener :
Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.
2020-05-26 23:01:00.262 ERROR 6067 --- [ main] o.s.boot.SpringApplication : Application run failed
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'nacosDemoApplication': Injection of @com.alibaba.nacos.api.config.annotation.NacosValue dependencies is failed; nested exception is java.lang.IllegalArgumentException: Could not resolve placeholder 'aversion' in value "${aversion}"
at com.alibaba.spring.beans.factory.annotation.AnnotationInjectedBeanPostProcessor.postProcessPropertyValues(AnnotationInjectedBeanPostProcessor.java:134) ~[spring-context-support-1.0.5.jar:na]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1427) ~[spring-beans-5.2.5.RELEASE.jar:5.2.5.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:594) ~[spring-beans-5.2.5.RELEASE.jar:5.2.5.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:517) ~[spring-beans-5.2.5.RELEASE.jar:5.2.5.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:323) ~[spring-beans-5.2.5.RELEASE.jar:5.2.5.RELEASE]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) ~[spring-beans-5.2.5.RELEASE.jar:5.2.5.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:321) ~[spring-beans-5.2.5.RELEASE.jar:5.2.5.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202) ~[spring-beans-5.2.5.RELEASE.jar:5.2.5.RELEASE]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:882) ~[spring-beans-5.2.5.RELEASE.jar:5.2.5.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:878) ~[spring-context-5.2.5.RELEASE.jar:5.2.5.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:550) ~[spring-context-5.2.5.RELEASE.jar:5.2.5.RELEASE]
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:141) ~[spring-boot-2.2.6.RELEASE.jar:2.2.6.RELEASE]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:747) [spring-boot-2.2.6.RELEASE.jar:2.2.6.RELEASE]
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:397) [spring-boot-2.2.6.RELEASE.jar:2.2.6.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:315) [spring-boot-2.2.6.RELEASE.jar:2.2.6.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1226) [spring-boot-2.2.6.RELEASE.jar:2.2.6.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1215) [spring-boot-2.2.6.RELEASE.jar:2.2.6.RELEASE]
at club.hicode.nacosdemo.NacosDemoApplication.main(NacosDemoApplication.java:13) [classes/:na]
Caused by: java.lang.IllegalArgumentException: Could not resolve placeholder 'aversion' in value "${aversion}"
at org.springframework.util.PropertyPlaceholderHelper.parseStringValue(PropertyPlaceholderHelper.java:178) ~[spring-core-5.2.5.RELEASE.jar:5.2.5.RELEASE]
at org.springframework.util.PropertyPlaceholderHelper.replacePlaceholders(PropertyPlaceholderHelper.java:124) ~[spring-core-5.2.5.RELEASE.jar:5.2.5.RELEASE]
at org.springframework.core.env.AbstractPropertyResolver.doResolvePlaceholders(AbstractPropertyResolver.java:236) ~[spring-core-5.2.5.RELEASE.jar:5.2.5.RELEASE]
at org.springframework.core.env.AbstractPropertyResolver.resolveRequiredPlaceholders(AbstractPropertyResolver.java:210) ~[spring-core-5.2.5.RELEASE.jar:5.2.5.RELEASE]
at org.springframework.context.support.PropertySourcesPlaceholderConfigurer.lambda$processProperties$0(PropertySourcesPlaceholderConfigurer.java:175) ~[spring-context-5.2.5.RELEASE.jar:5.2.5.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.resolveEmbeddedValue(AbstractBeanFactory.java:909) ~[spring-beans-5.2.5.RELEASE.jar:5.2.5.RELEASE]
at com.alibaba.nacos.spring.context.annotation.config.NacosValueAnnotationBeanPostProcessor.doGetInjectedBean(NacosValueAnnotationBeanPostProcessor.java:85) ~[nacos-spring-context-0.3.6.jar:na]
at com.alibaba.nacos.spring.context.annotation.config.NacosValueAnnotationBeanPostProcessor.doGetInjectedBean(NacosValueAnnotationBeanPostProcessor.java:55) ~[nacos-spring-context-0.3.6.jar:na]
at com.alibaba.spring.beans.factory.annotation.AnnotationInjectedBeanPostProcessor.getInjectedObject(AnnotationInjectedBeanPostProcessor.java:342) ~[spring-context-support-1.0.5.jar:na]
at com.alibaba.spring.beans.factory.annotation.AnnotationInjectedBeanPostProcessor$AnnotatedFieldElement.inject(AnnotationInjectedBeanPostProcessor.java:522) ~[spring-context-support-1.0.5.jar:na]
at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:130) ~[spring-beans-5.2.5.RELEASE.jar:5.2.5.RELEASE]
at com.alibaba.spring.beans.factory.annotation.AnnotationInjectedBeanPostProcessor.postProcessPropertyValues(AnnotationInjectedBeanPostProcessor.java:130) ~[spring-context-support-1.0.5.jar:na]
... 17 common frames omitted
Something wrong in my code?This problem has been bothering me all day. I need help,thanks...
