熊佳佳的技术笔记

1.公网IP服务器2.乱码问题[img]http://dl.iteye.com/upload/picture/pic/105138/c65a072d-3bed-3ada-855d-e1f6a49a8c90.jpg[/img][img]http://dl.iteye.com/upload/picture/pic/105136/a613360d-3052-3681-8aef-0c983...

[code="java"]将statement定义成statement = conn.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE,ResultSet.CONCUR_UPDATABLE);允许结果集可移动。[/code]

[code="js"]xmlhttp.open("GET", "queryForChannelnode.action?nAddress=" + nAddress,true);[/code]这个nAddress在Action中得不到值，我将变量private改成public后，成功。[code="java"]public String nAddress; public Stri...

[code="java"]E:\Program Files\Genuitec\Common\plugins\com.genuitec.eclipse.j2eedt.core_8.5.0.me201003231033\data\libraryset\EE_5[/code][code="java"]这个路径里,可以看到javaee.jar,用rar把这个文件打开,然后进到javax文件夹里,删除m...

HQL中少了逗号

错误信息所指的字段在数据库中为null，解决办法是为它们附上默认值

[img]http://dl.iteye.com/upload/picture/pic/125532/db892442-84dd-3950-9a12-77acb489265f.png[/img][img]http://dl.iteye.com/upload/picture/pic/125526/5457628c-7074-364d-bda6-31c3ad4e1acb.png[/img]...

[code="java"]HQL中缺少逗号[/code]

[code="java"]IllegalArgumentException occurred while calling setter of com.baitw.hibernate.entity.TNews.state[/code][code="java"]原因：对应bean中set方法数据类型和hibernate配置文件中定义的类型不一致[/code]...

[code="xml"]表单提交时，Strus2接收到了未定义参数。一般删除多余的表单name属性就好了。[/code]

[code="java"]public List GetTop5NewsTitle(String type) { // TODO Auto-generated method stub Session session=HibernateSessionFactory.getSession(); Query query=session.createQuery ("select n...

[color=green]原因和顺序弄反，解决方法先定义Servlet再映射。[/color]

[code="java"]DB_BLOCK_SIZE 的设置出问题，Oracle只有2k, 4k, 8k,16k, 32k的数据块！这里是6144，改成8192即可[/code]

[color=green]POJO类不是一个JavaBean，可能是没有一个无参构造函数[/color][code="java"]警告: Marshalling exceptionorg.directwebremoting.extend.MarshallException: Error marshalling com.demo.entity.User: com.demo.entity....

[img]http://dl.iteye.com/upload/picture/pic/127727/f18218d3-ee7f-3f5c-86cd-ea27caaa957c.png[/img][code="java"]Exception in thread "main" java.lang.NoClassDefFoundError: javax/persistence/EntityListe...