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JavaWeb图书答疑

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所属版块： JavaWeb答疑区

zengyuechang

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继续提问《jsp项目开发全程实录》第一章

发表在JavaWeb图书答疑 2009-05-10

是否精华是否

版块置顶: 是否

HTTP Status 500 -

--------------------------------------------------------------------------------

type Exception report

message

description The server encountered an internal error () that prevented it from fulfilling this request.

exception

javax.servlet.ServletException: Filter execution threw an exception

root cause

java.lang.ExceptionInInitializerError
sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
java.lang.reflect.Constructor.newInstance(Unknown Source)
java.lang.Class.newInstance0(Unknown Source)
java.lang.Class.newInstance(Unknown Source)
com.opensymphony.xwork2.ObjectFactory.buildBean(ObjectFactory.java:123)
com.opensymphony.xwork2.ObjectFactory.buildBean(ObjectFactory.java:154)
com.opensymphony.xwork2.ObjectFactory.buildBean(ObjectFactory.java:143)
com.opensymphony.xwork2.ObjectFactory.buildAction(ObjectFactory.java:113)
com.opensymphony.xwork2.DefaultActionInvocation.createAction(DefaultActionInvocation.java:275)
com.opensymphony.xwork2.DefaultActionInvocation.init(DefaultActionInvocation.java:365)
com.opensymphony.xwork2.DefaultActionInvocation.access$000(DefaultActionInvocation.java:38)
com.opensymphony.xwork2.DefaultActionInvocation$1.doProfiling(DefaultActionInvocation.java:83)
com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455)
com.opensymphony.xwork2.DefaultActionInvocation.<init>(DefaultActionInvocation.java:74)
com.opensymphony.xwork2.DefaultActionProxy.prepare(DefaultActionProxy.java:189)
org.apache.struts2.impl.StrutsActionProxyFactory.createActionProxy(StrutsActionProxyFactory.java:41)
org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:494)
org.apache.struts2.dispatcher.FilterDispatcher.doFilter(FilterDispatcher.java:419)

root cause

java.lang.NullPointerException
com.yxq.dao.DB.getRs(DB.java:61)
com.yxq.dao.OpDB.OpGetListBox(OpDB.java:23)
com.yxq.action.IndexAction.<clinit>(IndexAction.java:47)
sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
java.lang.reflect.Constructor.newInstance(Unknown Source)
java.lang.Class.newInstance0(Unknown Source)
java.lang.Class.newInstance(Unknown Source)
com.opensymphony.xwork2.ObjectFactory.buildBean(ObjectFactory.java:123)
com.opensymphony.xwork2.ObjectFactory.buildBean(ObjectFactory.java:154)
com.opensymphony.xwork2.ObjectFactory.buildBean(ObjectFactory.java:143)
com.opensymphony.xwork2.ObjectFactory.buildAction(ObjectFactory.java:113)
com.opensymphony.xwork2.DefaultActionInvocation.createAction(DefaultActionInvocation.java:275)
com.opensymphony.xwork2.DefaultActionInvocation.init(DefaultActionInvocation.java:365)
com.opensymphony.xwork2.DefaultActionInvocation.access$000(DefaultActionInvocation.java:38)
com.opensymphony.xwork2.DefaultActionInvocation$1.doProfiling(DefaultActionInvocation.java:83)
com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455)
com.opensymphony.xwork2.DefaultActionInvocation.<init>(DefaultActionInvocation.java:74)
com.opensymphony.xwork2.DefaultActionProxy.prepare(DefaultActionProxy.java:189)
org.apache.struts2.impl.StrutsActionProxyFactory.createActionProxy(StrutsActionProxyFactory.java:41)
org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:494)
org.apache.struts2.dispatcher.FilterDispatcher.doFilter(FilterDispatcher.java:419)

note The full stack trace of the root cause is available in the Apache Tomcat/6.0.18 logs.

--------------------------------------------------------------------------------

Apache Tomcat/6.0.18
我按照老师上次给我的回答做。。。都不成功。。继续出现这些错误。。。再次请求帮忙。。谢谢。。。可加我个Q 946005665 给我视频下。。。谢谢！

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无语_mrkj

学分：3155 LV11

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2009-05-11

沙发

（1）如果您的操作系统不是windows 2000 server请安装SQL Server 2000的SP4补丁。
另外在安装SQL Server 2000的SP4补丁时，默认执行的是解压缩操作，在解压完成后，还需要要解压缩的位置找到setup.bat文件，运行该文件进行正式安装。并且在安装前，要保存SQL Server的企业管理器中的没有被置疑的数据库。
（2）请确认在安装SQL server 2000时，采用的是混合验证模式，并且登录用户为sa，空密码。
（3）请将SQL Server 2000数据库驱动包拷贝到程序的lib文件夹中。
（4）正确附加数据库，并且选择访问用户为sa。
说明：被置疑的数据库就是数据库名称后面没标记（置疑）二字的数据库。
如果以上内容确认没有问题，请加我公司的QQ：100310286

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zengyuechang

学分：0 LV1

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2009-05-12

板凳

谢谢老师,按照您的指导,我成功调试出来了。谢谢！祝您工作愉快！

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