如何从引导中显示grails错误

我不知道你在引导中做了什么,但是如果在保存域对象时失败了,那么你可以像在控制器中一样将这些错误记录为错误。如果要将错误转到控制台,只需设置控制台附加程序:

//Remember, save calls validate()
if(!myObject.save()) {
    myObject.errors.allErrors.each {
        log.error it
    }
}

参考文献:

• Logging in grails
• Validating constraints

def searchService 

searchService.search(person)  // inside hibernate create criteria or any db actitvity or ...

seachService.errors.allErrors,each {
flash.message = message(code:'default.search.error.message',default : it) //see it in freindly view
 //Or println("${new Date()}"it)
}



you need a lable flash message on your in case of other files than bootstrap 

<g:set var="entityName" value="${message(code: 'domainClassName.label', default: 'what ever')}" />
        <title><g:message code="default.list.label" args="[entityName]" /></title>


    <h1><g:message code="default.list.label" args="[entityName]" /></h1>
            <g:if test="${flash.message}">
            <div class="message" role="status">${flash.message}</div>
            </g:if>