解析MappingNode時線程主例外

Question

我完全不知道這個錯誤代碼是什麼，有沒有人有這方面的見解？我對grails非常陌生，因此下面的錯誤代碼對我來說是未知的。無法辨認出它的正面或反面。 - Grails的初學者在這裏 運行的Grails 3.1.2 MySQL工作臺6

grails> run-app 
| Running application... 
Exception in thread "main" while parsing MappingNode 
in 'reader', line 31, column 13: 
       dbCreate: update 
       ^
Duplicate key: properties 
in 'reader', line 47, column 1: 
    --- 
    ^

     at org.springframework.beans.factory.config.YamlProcessor$StrictMapAppenderConstructor.constructMapping(YamlProcessor.java:407) 
     at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:489) 
     at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:182) 
     at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:373) 
     at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:147) 
     at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:354) 
     at org.springframework.beans.factory.config.YamlProcessor$StrictMapAppenderConstructor.constructMapping(YamlProcessor.java:403) 
     at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:489) 
     at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:182) 
     at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:373) 
     at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:147) 
     at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:354) 
     at org.springframework.beans.factory.config.YamlProcessor$StrictMapAppenderConstructor.constructMapping(YamlProcessor.java:403) 
     at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:489) 
     at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:182) 
     at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:373) 
     at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:147) 
     at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:354) 
     at org.springframework.beans.factory.config.YamlProcessor$StrictMapAppenderConstructor.constructMapping(YamlProcessor.java:403) 
     at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:489) 
     at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:182) 
     at org.yaml.snakeyaml.constructor.BaseConstructor.constructDocument(BaseConstructor.java:141) 
     at org.yaml.snakeyaml.constructor.BaseConstructor.getData(BaseConstructor.java:108) 
     at org.yaml.snakeyaml.Yaml$1.next(Yaml.java:471) 
     at org.springframework.beans.factory.config.YamlProcessor.process(YamlProcessor.java:158) 
     at org.springframework.beans.factory.config.YamlProcessor.process(YamlProcessor.java:136) 
     at org.grails.config.yaml.YamlPropertySourceLoader.load(YamlPropertySourceLoader.groovy:84) 
     at org.grails.config.yaml.YamlPropertySourceLoader.load(YamlPropertySourceLoader.groovy:47) 
     at org.springframework.boot.env.PropertySourcesLoader.load(PropertySourcesLoader.java:127) 
     at org.springframework.boot.context.config.ConfigFileApplicationListener$Loader.loadIntoGroup(ConfigFileApplicationListener.java:462) 
     at org.springframework.boot.context.config.ConfigFileApplicationListener$Loader.load(ConfigFileApplicationListener.java:449) 
     at org.springframework.boot.context.config.ConfigFileApplicationListener$Loader.load(ConfigFileApplicationListener.java:374) 
     at org.springframework.boot.context.config.ConfigFileApplicationListener.addPropertySources(ConfigFileApplicationListener.java:210) 
     at org.springframework.boot.context.config.ConfigFileApplicationListener.postProcessEnvironment(ConfigFileApplicationListener.java:179) 
     at org.springframework.boot.context.config.ConfigFileApplicationListener.onApplicationEnvironmentPreparedEvent(ConfigFileApplicationListener.java:166) 
     at org.springframework.boot.context.config.ConfigFileApplicationListener.onApplicationEvent(ConfigFileApplicationListener.java:152) 
     at org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:163) 
     at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:136) 
     at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:119) 
     at org.springframework.boot.context.event.EventPublishingRunListener.publishEvent(EventPublishingRunListener.java:111) 
     at org.springframework.boot.context.event.EventPublishingRunListener.environmentPrepared(EventPublishingRunListener.java:65) 
     at org.springframework.boot.SpringApplicationRunListeners.environmentPrepared(SpringApplicationRunListeners.java:54) 
     at org.springframework.boot.SpringApplication.createAndRefreshContext(SpringApplication.java:330) 
     at org.springframework.boot.SpringApplication.run(SpringApplication.java:307) 
     at grails.boot.GrailsApp.run(GrailsApp.groovy:55) 
     at grails.boot.GrailsApp.run(GrailsApp.groovy:365) 
     at grails.boot.GrailsApp.run(GrailsApp.groovy:354) 
     at grails.boot.GrailsApp$run.call(Unknown Source) 
     at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:48) 
     at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:113) 
     at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:133) 
     at grailsapp.Application.main(Application.groovy:8) 

Answer 1

YML文件現在看起來是這樣的。它的工作原理

--- 
grails: 
    profile: web 
    codegen: 
     defaultPackage: grailsapp 
info: 
    app: 
     name: '@info.app.name@' 
     version: '@info.app.version@' 
     grailsVersion: '@info.app.grailsVersion@' 
spring: 
    groovy: 
     template: 
      check-template-location: false 

--- 
grails: 
    mime: 
     disable: 
      accept: 
       header: 
        userAgents: 
         - Gecko 
         - WebKit 
         - Presto 
         - Trident 
     types: 
      all: '*/*' 
      atom: application/atom+xml 
      css: text/css 
      csv: text/csv 
      form: application/x-www-form-urlencoded 
      html: 
       - text/html 
       - application/xhtml+xml 
      js: text/javascript 
      json: 
       - application/json 
       - text/json 
      multipartForm: multipart/form-data 
      pdf: application/pdf 
      rss: application/rss+xml 
      text: text/plain 
      hal: 
       - application/hal+json 
       - application/hal+xml 
      xml: 
       - text/xml 
       - application/xml 
    urlmapping: 
     cache: 
      maxsize: 1000 
    controllers: 
     defaultScope: singleton 
    converters: 
     encoding: UTF-8 
    views: 
     default: 
      codec: html 
     gsp: 
      encoding: UTF-8 
      htmlcodec: xml 
      codecs: 
       expression: html 
       scriptlets: html 
       taglib: none 
       staticparts: none 
--- 
hibernate: 
    cache: 
     queries: false 
     use_second_level_cache: true 
     use_query_cache: false 
     region.factory_class: 'org.hibernate.cache.ehcache.EhCacheRegionFactory' 

endpoints: 
    jmx: 
     unique-names: true 

dataSource: 
    pooled: true 
    jmxExport: true 
    driverClassName: com.mysql.jdbc.Driver 
    dialect: org.hibernate.dialect.MySQL5InnoDBDialect 
    username: root 
    password: root 

environments: 
    development: 
     dataSource: 
      dbCreate: update 
      url: jdbc:mysql://localhost/inventory 
    test: 
     dataSource: 
      driverClassName: org.h2.Driver 
      username: sa 
      password: 
      dbCreate: update 
      url: jdbc:h2:mem:testDb;MVCC=TRUE;LOCK_TIMEOUT=10000;DB_CLOSE_ON_EXIT=FALSE 
    production: 
     dataSource: 
      dbCreate: update 
      url: jdbc:h2:./prodDb;MVCC=TRUE;LOCK_TIMEOUT=10000;DB_CLOSE_ON_EXIT=FALSE 
      properties: 
       jmxEnabled: true 
       initialSize: 5 
       maxActive: 50 
       minIdle: 5 
       maxIdle: 25 
       maxWait: 10000 
       maxAge: 600000 
       timeBetweenEvictionRunsMillis: 5000 
       minEvictableIdleTimeMillis: 60000 
       validationQuery: SELECT 1 
       validationQueryTimeout: 3 
       validationInterval: 15000 
       testOnBorrow: true 
       testWhileIdle: true 
       testOnReturn: false 
       jdbcInterceptors: ConnectionState 
       defaultTransactionIsolation: 2 # TRANSACTION_READ_COMMITTED