SQL2000服务器运行网页报错TOMCAT配置和JAVA环境配置都没问题,急求教!
来源:百度知道 编辑:UC知道 时间:2024/05/29 05:32:42
程序没问题 把程序包放到本机能跑通 本机用的是SQL2005 就服务器上的出错
错误是:
HTTP Status 500 -
type Exception report
message
description The server encountered an internal error () that prevented it from fulfilling this request.
exception
java.lang.NullPointerException
com.zhuofan.db.QueryBeanFactory.rollbackQueryBean(QueryBeanFactory.java:25)
com.zhuofan.module.ZfzwServlet.doGet(ZfzwServlet.java:111)
javax.servlet.http.HttpServlet.service(HttpServlet.java:689)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
org.apache.catalina.servlets.InvokerServlet.serveRequest(InvokerServlet.java:419)
org.apache.catalina.servlets.InvokerServlet.doGet(InvokerServlet.java:133)
javax.servlet.http.HttpServlet.service(HttpServlet.java:689)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
note The full stack trace of the root cause is available in the Apache Tomcat/5.5.9 logs.
-------
错误是:
HTTP Status 500 -
type Exception report
message
description The server encountered an internal error () that prevented it from fulfilling this request.
exception
java.lang.NullPointerException
com.zhuofan.db.QueryBeanFactory.rollbackQueryBean(QueryBeanFactory.java:25)
com.zhuofan.module.ZfzwServlet.doGet(ZfzwServlet.java:111)
javax.servlet.http.HttpServlet.service(HttpServlet.java:689)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
org.apache.catalina.servlets.InvokerServlet.serveRequest(InvokerServlet.java:419)
org.apache.catalina.servlets.InvokerServlet.doGet(InvokerServlet.java:133)
javax.servlet.http.HttpServlet.service(HttpServlet.java:689)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
note The full stack trace of the root cause is available in the Apache Tomcat/5.5.9 logs.
-------
ZfzwServlet.java:111行
空指针错误
应该有值的地方没值,贴源码
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麻烦提问者把这段源代码贴出,谢谢
com.zhuofan.module.ZfzwServlet.doGet(ZfzwServlet.java:111
空指针啊!你可以log输出或者System.out.print 输出这附近几个变量的值看看
服务器内部错误
空指针异常
没有实例化对象直接引用了
NullPointerException
空指针异常
建议贴代码。
(QueryBeanFactory.java:25)
是不是 这个的问题
数据库连接的问题