powerbuilder常用函数详解

1.Cannot find bean: "org.apache.struts.taglib.html.BEAN" in any scope

没有Action在页面上的form中没有Action

2.java.lang.IllegalArgumentException

在form中Action中少了enctype="multipart/form-data"

3.Servlet execution threw an exception

service错误

4.Value '0000-00-00' can not be represented as java.sql.Date

数据库里的时间类型不能为以上形式

5.Unhandled Exception thrown: class java.lang.NullPointerException

javax.servlet.ServletException

6.org.apache.catalina.core.StandardContext.loadOnStartup() 3919 - Servlet /vnv threw load() exception

在struts.config加载过程中没有找到相应的类

7.Cannot forward after response has been committed

8. Connection timed out: connect

数据库联不上

8. Cannot find bean: "org.apache.struts.taglib.html.BEAN" in any scope

struts中的<html:》标签不能对应