エラー

ドメイン Promotion.groovyエラー

class Promotion { 

    String title 
    String slug 
    String banner 
    String description 
    Date startDate 
    Date endDate 
    String status 
    Date createdAt=new Date() 
    Date modifiedAt=new Date() 
    Date trashedAt=new Date() 
    String type 
    Integer sort 

    static constraints = { 
     title blank: true, nullable: true 
     slug blank: true, nullable: true 
     banner blank: true, nullable: true 
     description blank: true, nullable: true 
     startDate blank: true, nullable: true 
     endDate blank: true, nullable: true 
     status blank: true, nullable: true 
     createdAt blank: true, nullable: true 
     modifiedAt blank:true, nullable: true 
     trashedAt blank:true, nullable: true 
     type blank: true, nullable: true 
     sort blank: true, nullable: true 
    } 
}

PromotionController.groovy

def index() { 
    def list=Promotion.list() 
    [list:list] 
    render(view: "index",parameters:list) 
}

URL：http://localhost:8080/admin/promotion/index

エラーは次のとおりです。

ERROR org.grails.web.errors.GrailsExceptionResolver - ClassCastException occurred when processing request: [GET] /admin/promotion/show 
java.lang.Boolean cannot be cast to java.lang.String. Stacktrace follows: 
java.lang.reflect.InvocationTargetException: null 
    at org.grails.core.DefaultGrailsControllerClass$ReflectionInvoker.invoke(DefaultGrailsControllerClass.java:210) 
    at org.grails.core.DefaultGrailsControllerClass.invoke(DefaultGrailsControllerClass.java:187) 
    at org.grails.web.mapping.mvc.UrlMappingsInfoHandlerAdapter.handle(UrlMappingsInfoHandlerAdapter.groovy:90) 
    at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:963) 
    at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:897) 
    at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970) 
    at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:861) 
    at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846) 
    at org.springframework.boot.web.filter.ApplicationContextHeaderFilter.doFilterInternal(ApplicationContextHeaderFilter.java:55) 
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:317) 
    at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:127) 
    at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:91) 
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) 
    at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:115) 
    at grails.plugin.springsecurity.web.UpdateRequestContextHolderExceptionTranslationFilter.doFilter(UpdateRequestContextHolderExceptionTranslationFilter.groovy:64) 
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) 
    at grails.plugin.springsecurity.web.filter.GrailsAnonymousAuthenticationFilter.doFilter(GrailsAnonymousAuthenticationFilter.groovy:53) 
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) 
    at org.springframework.security.web.authentication.rememberme.RememberMeAuthenticationFilter.doFilter(RememberMeAuthenticationFilter.java:158) 
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) 
    at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:169) 
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) 
    at org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:200) 
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) 
    at grails.plugin.springsecurity.web.authentication.logout.MutableLogoutFilter.doFilter(MutableLogoutFilter.groovy:62) 
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) 
    at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:105) 
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) 
    at grails.plugin.springsecurity.web.SecurityRequestHolderFilter.doFilter(SecurityRequestHolderFilter.groovy:58) 
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) 
    at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:214) 
    at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:177) 
    at org.grails.web.servlet.mvc.GrailsWebRequestFilter.doFilterInternal(GrailsWebRequestFilter.java:77) 
    at org.grails.web.filters.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:67) 
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) 
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) 
    at java.lang.Thread.run(Thread.java:748) 
Caused by: java.lang.ClassCastException: java.lang.Boolean cannot be cast to java.lang.String 
    at org.grails.orm.hibernate.query.GrailsHibernateQueryUtils.populateArgumentsForCriteria(GrailsHibernateQueryUtils.java:114) 
    at org.grails.orm.hibernate.HibernateGormStaticApi$_list_closure1.doCall(HibernateGormStaticApi.groovy:83) 
    at org.grails.orm.hibernate.GrailsHibernateTemplate.doExecute(GrailsHibernateTemplate.java:243) 
    at org.grails.orm.hibernate.GrailsHibernateTemplate.execute(GrailsHibernateTemplate.java:187) 
    at org.grails.orm.hibernate.GrailsHibernateTemplate.execute(GrailsHibernateTemplate.java:110) 
    at org.grails.orm.hibernate.HibernateGormStaticApi.list(HibernateGormStaticApi.groovy:70) 
    at org.grails.orm.hibernate.HibernateGormStaticApi.list(HibernateGormStaticApi.groovy:69) 
    at org.grails.datastore.gorm.GormEntity$Trait$Helper.list(GormEntity.groovy:654) 
    at com.dgmates.goglides.admin.PromotionController$$EQbjTmka.$tt__show(PromotionController.groovy:25) 
    at grails.transaction.GrailsTransactionTemplate$2.doInTransaction(GrailsTransactionTemplate.groovy:96) 
    at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:133) 
    at grails.transaction.GrailsTransactionTemplate.execute(GrailsTransactionTemplate.groovy:93) 
    ... 37 common frames omitted 
ERROR org.grails.web.errors.GrailsExceptionResolver - ClassCastException occurred when processing request: [GET] /admin/promotion/index 
java.lang.Boolean cannot be cast to java.lang.String. Stacktrace follows: 
java.lang.reflect.InvocationTargetException: null 
    at org.grails.core.DefaultGrailsControllerClass$ReflectionInvoker.invoke(DefaultGrailsControllerClass.java:210) 
    at org.grails.core.DefaultGrailsControllerClass.invoke(DefaultGrailsControllerClass.java:187) 
    at org.grails.web.mapping.mvc.UrlMappingsInfoHandlerAdapter.handle(UrlMappingsInfoHandlerAdapter.groovy:90) 
    at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:963) 
    at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:897) 
    at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970) 
    at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:861) 
    at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846) 
    at org.springframework.boot.web.filter.ApplicationContextHeaderFilter.doFilterInternal(ApplicationContextHeaderFilter.java:55) 
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:317) 
    at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:127) 
    at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:91) 
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) 
    at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:115) 
    at grails.plugin.springsecurity.web.UpdateRequestContextHolderExceptionTranslationFilter.doFilter(UpdateRequestContextHolderExceptionTranslationFilter.groovy:64) 
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) 
    at grails.plugin.springsecurity.web.filter.GrailsAnonymousAuthenticationFilter.doFilter(GrailsAnonymousAuthenticationFilter.groovy:53) 
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) 
    at org.springframework.security.web.authentication.rememberme.RememberMeAuthenticationFilter.doFilter(RememberMeAuthenticationFilter.java:158) 
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) 
    at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:169) 
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) 
    at org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:200) 
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) 
    at grails.plugin.springsecurity.web.authentication.logout.MutableLogoutFilter.doFilter(MutableLogoutFilter.groovy:62) 
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) 
    at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:105) 
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) 
    at grails.plugin.springsecurity.web.SecurityRequestHolderFilter.doFilter(SecurityRequestHolderFilter.groovy:58) 
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) 
    at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:214) 
    at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:177) 
    at org.grails.web.servlet.mvc.GrailsWebRequestFilter.doFilterInternal(GrailsWebRequestFilter.java:77) 
    at org.grails.web.filters.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:67) 
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) 
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) 
    at java.lang.Thread.run(Thread.java:748) 
Caused by: java.lang.ClassCastException: java.lang.Boolean cannot be cast to java.lang.String 
    at org.grails.orm.hibernate.query.GrailsHibernateQueryUtils.populateArgumentsForCriteria(GrailsHibernateQueryUtils.java:114) 
    at org.grails.orm.hibernate.HibernateGormStaticApi$_list_closure1.doCall(HibernateGormStaticApi.groovy:83) 
    at org.grails.orm.hibernate.GrailsHibernateTemplate.doExecute(GrailsHibernateTemplate.java:243) 
    at org.grails.orm.hibernate.GrailsHibernateTemplate.execute(GrailsHibernateTemplate.java:187) 
    at org.grails.orm.hibernate.GrailsHibernateTemplate.execute(GrailsHibernateTemplate.java:110) 
    at org.grails.orm.hibernate.HibernateGormStaticApi.list(HibernateGormStaticApi.groovy:70) 
    at org.grails.orm.hibernate.HibernateGormStaticApi.list(HibernateGormStaticApi.groovy:69) 
    at org.grails.datastore.gorm.GormEntity$Trait$Helper.list(GormEntity.groovy:654) 
    at com.dgmates.goglides.admin.PromotionController$$EQbjTmka.$tt__index(PromotionController.groovy:16) 
    at grails.transaction.GrailsTransactionTemplate$2.doInTransaction(GrailsTransactionTemplate.groovy:96) 
    at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:133) 
    at grails.transaction.GrailsTransactionTemplate.execute(GrailsTransactionTemplate.groovy:93) 
    ... 37 common frames omitted

私はそれが上記のerror.Itがjava.lang.Boolean cannot be cast to java.lang.String error.Iは、Grailsの-3.3.0.RC1フレームワークを使用しています与えthorwsデータにアクセスしてみてください。

Error 500: Internal Server Error 
URI 
/admin/promotion/index 
Class 
java.lang.ClassCastException 
Message 
null 
Caused by 
java.lang.Boolean cannot be cast to java.lang.String

出典

2017-11-22 Binod Pant

ステータスはわかりませんが、ステータスはブール値です。これは単純なキャスト例外です。 – amod

@amodメインのエラーは何ですか？例外をスローします。 –

'render（view：" index "、parameters：list）'のパラメータは何ですか？私はhttps://docs.grails.org/latest/ref/Controllers/render.htmlで何も見ていない – devbd

[list:list]

コントローラ（この場合index.gsp）の名前でビューをレンダリングし、GSPに利用できるようにオブジェクトのマップを渡す意味Grailsの良さです。この例では、「リスト」はコントローラに「リスト」として利用可能でなければならない。

render(view: "index",parameters:list)

レンダリングするビューをコントローラに明示的に伝えます。前に使用したパラメータは見ていません。あなたはモデルを意味しましたか？

は、前の行は、私はあなたがとにかくほしいと思う何をやっているので、レンダリングを取り出す試してみてください。

あなたが特定のコマンドをレンダリングしたい場合は、あなたの例に基づいて、それは以下の（括弧不要）する必要があります：リスト：

render view:"index", model:[list:list]

あなたは[リストを取り出し、その後、明示的にレンダリングしない場合]を押します。

出典

2017-11-22 19:10:39

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