csdn

java.lang.NullPointerException

以下是我的代码：（第一句执行完后就出现"页面访问时发生错误: null ”的错误信息） at com.suun.web.prjplan.CheckAction.saveRecordSet(CheckAction.java:1) at com.suun.modules.web.struts2.CRUDActionSupport.save(CRUDActionSupport.java:107) at ...
csdn

Hibernate出现java.lang.NullPointerException异常，什么问题？

我使用MyEclpise进行开发，使用Hibernate将SQL Server中的表转化为类，然后写了一个Dao的类，文件如下： 怎么在执行的时候，出现java.lang.NullPointerException，是怎么回事？出错的是在 Session session = HibernateSessionFactory.getSession();，哪位帮忙给看看？ 会不会因为连接的是SQL ...
Android Authority

NullPointerException in Java - Explaining the billion dollar mistake

While Java is one of the most in-demand and widely used programming languages in the world, it is not without its detractors. Java is not a particularly beginner-friendly language and it is rife with ...
InfoWorld

Manage your software with the Java Product Versioning Specification

Many of us are familiar with how to find version information in Windows-like applications. At startup, we’re often greeted with a splash screen that identifies the vendor, the product name, and ...