通过异常栈可以得出有效信息: Attemptedtocallmethodonnull contextobject 调用的方法处于一个空对象中,即调用实例为空。 thymeleaf的context,即提供数据的地方,基于web的context,即WebContext相对context增加 param,session,application变量,并且自动将request atttributes添加到context variable map,可以在模板直接访问。 针对...
在使用spel调用方法时需要设置参数,所以需要StandardEvaluationContext对象来设置参数,但是我设置了参数一直报 “org.springframework.expression.spel.SpelEvaluationException: EL1011E: Method call: Attempted to call method isEmpty(java.lang.String) on null context object” 错误,看了文档后才知道没有设置context的...
org.springframework.expression.spel.SpelEvaluationException: EL1011E: Method call: Attempted to call method test() on null context object 程序员十三 2017-09-20 08:33阅读:22324评论:1推荐:12编辑 公告 昵称:程序员十三 园龄:8年11个月 粉丝:1309 ...
At runtime, when accessing this endpoint you have the following error :org.springframework.expression.spel.SpelEvaluationException: EL1011E:(pos 8): Method call: Attempted to call method hasScope(java.lang.String) on null context object
解决自定义view引用显示Context.getResources() on a null object reference问题的一种方法,程序员大本营,技术文章内容聚合第一站。
Identity Manager Connector - Version 11.1.1.5.0 and later: "NullPointerException: Cannot invoke method getAttributeInfo() on null object" Error Occurred While Execu
Oracle Fusion Accounting Hub Reporting Cloud Service - Version 11.13.19.10.0 and later: Cannot Get Property "Name" On Null Object
Where-Object : Cannot convert null to type "System.DateTime". At C:\InfrastructureScripts\Scripts\Add-CertToServicePrincipal.ps1:93 char:44 + ... edentials | Where-Object {[datetime]$_.EndDate -eq $localAgentCertEnd ... + ~~~ + CategoryInfo : InvalidArgument: (:) [Where-Object...
object[] data = new object[] { "foo", null, null, null }; var q = data.Select(x = > x.ToString()); foreach(var e in q) Console.WriteLine(e); Every time you run it with LINQ, it will succeed in running ToString on the first array element, and then it will fail with a ...
OnValidate(Object)可用于对集合中接受的对象类型施加限制。 默认实现可防止null在基础ArrayList中添加或删除 。 OnValidate(Object)在、OnRemove(Int32, Object)和OnSet(Int32, Object, Object)之前OnInsert(Int32, Object)调用 。 适用于 产品版本 .NETCore 1.0, Core 1.1, Core 2.0, Core 2.1, Core 2.2, Co...