我得到这样的域类:
class Offer {
Property property
Building building
ExternalSystem externalSystem
OfferStatus status
Double offerPrice
String currency
String description
String adventages
Date offerDisponibility
OfferNature offerNature
Surfaces surfaces
static hasMany = [units: Unit]
static constraints = {
building nullable: true
externalSystem nullable: true
description nullable: true
adventages nullable: true
}
}
当将其填充到 Controller 中时:
def offer = new Offer()
offer.property = Property.get(1)
offer.building = Building.get(1)
offer.externalSystem = ExternalSystem.get(1)
offer.status = OfferStatus.get(1)
offer.offerPrice = 26860
offer.currency = 'EUR'
offer.description = 'WONDERFULL OFFER !'
offer.offerDisponibility = convertDate('12/04/2014')
offer.offerNature = OfferNature.read(1)
offer.surfaces = Surfaces.get(2)
offer.validate()
验证，保存或对此对象执行任何操作时，都会收到奇怪的行为。
这是唯一做到这一点的域对象域。
我得到两个不同的stacktrace，这是我问题中最奇怪的部分，第一次调用 Controller 时会出现第一个stacktrace:
| Error 2013-11-26 11:27:10,971 [http-bio-8080-exec-2] ERROR errors.GrailsExceptionResolver - ArrayIndexOutOfBoundsException occurred when processing
request: [GET] /Project/login/auth
0. Stacktrace follows:
Message: 0
Line | Method
->> 116 | doCall in com.project.security.LoginController$_closure1
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
| 200 | doFilter in grails.plugin.cache.web.filter.PageFragmentCachingFilter
| 63 | doFilter in grails.plugin.cache.web.filter.AbstractFilter
| 1145 | runWorker in java.util.concurrent.ThreadPoolExecutor
| 615 | run . . . in java.util.concurrent.ThreadPoolExecutor$Worker
^ 722 | run in java.lang.Thread
第二个总是最后一个stacktrace:
| Error 2013-11-26 11:01:43,704 [http-bio-8080-exec-3] ERROR [/Project].[default] - Servlet.service() for servlet [default] in context with path [/Project] threw exception [org.springframework.web.util.NestedServletException: Request processing failed; nested exception is groovy.lang.MissingMethodException: No signature of method: static java.lang.Math.max() is applicable for argument types: (java.lang.Integer, null) values: [4, null]
Possible solutions: max(int, int), max(double, double), max(float, float), max(long, long), min(int, int), wait()] with root cause
Message: No signature of method: static java.lang.Math.max() is applicable for argument types: (java.lang.Integer, null) values: [4, null]
Possible solutions: max(int, int), max(double, double), max(float, float), max(long, long), min(int, int), wait()
Line | Method
->> 251 | doAppend in org.apache.log4j.AppenderSkeleton
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
| 66 | appendLoopOnAppenders in org.apache.log4j.helpers.AppenderAttachableImpl
| 206 | callAppenders . . . . in org.apache.log4j.Category
| 391 | forcedLog in ''
| 856 | log . . . . . . . . . in ''
| 192 | logMessage in org.slf4j.impl.GrailsLog4jLoggerAdapter
| 167 | error . . . . . . . . in ''
| 213 | error in org.apache.commons.logging.impl.SLF4JLog
| 200 | doFilter . . . . . . in grails.plugin.cache.web.filter.PageFragmentCachingFilter
| 63 | doFilter in grails.plugin.cache.web.filter.AbstractFilter
| 1145 | runWorker . . . . . . in java.util.concurrent.ThreadPoolExecutor
| 615 | run in java.util.concurrent.ThreadPoolExecutor$Worker
^ 722 | run . . . . . . . . . in java.lang.Thread
那么哪个stacktrace是正确的呢？
我该如何解决？
如果不调用save()或validate()消息，则没有stacktrace。
添加failOnError:true不会更改堆栈跟踪。
制造 :
if (!offer.save()) {
log.error offer.errors
}
没有改变堆栈跟踪。
谢谢阅读，
ite
最佳答案
经过数小时的研究，我终于解决了我的问题。
Property myProperty
不知道为什么，但是“属性”作为变量名(而不是域名类名)似乎是保留的关键字...
希望它会有用。
关于hibernate - Grails:保存对象时出错，很难理解，请勿使用 'property'关键字，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/20214511/