struts中出现HTTP Status 500的错误怎么解决?
来源:百度知道 编辑:UC知道 时间:2024/06/03 04:07:22
type Exception report
message
description The server encountered an internal error () that prevented it from fulfilling this request.
exception
javax.servlet.ServletException
org.apache.struts.action.RequestProcessor.processException(RequestProcessor.java:535)
org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:433)
org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:236)
org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196)
org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:432)
javax.servlet.http.HttpServlet.service(HttpServlet.java:647)
javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
root cause
java.lang.NullPointerException
com.action.UserInfoAction.executeUpdate(UserInfoAction.java:43)
com.action.UserInfoAction.execute(UserInfoAction.java:60)
org.apache.stru
message
description The server encountered an internal error () that prevented it from fulfilling this request.
exception
javax.servlet.ServletException
org.apache.struts.action.RequestProcessor.processException(RequestProcessor.java:535)
org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:433)
org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:236)
org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196)
org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:432)
javax.servlet.http.HttpServlet.service(HttpServlet.java:647)
javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
root cause
java.lang.NullPointerException
com.action.UserInfoAction.executeUpdate(UserInfoAction.java:43)
com.action.UserInfoAction.execute(UserInfoAction.java:60)
org.apache.stru
空指针异常了!
位置UserInfoAction中的executeUpdate处。
具体的错误日志里面有啊:
java.lang.NullPointerException(这就是说空指针异常)
com.action.UserInfoAction.executeUpdate(UserInfoAction.java:43)
com.action.UserInfoAction.execute(UserInfoAction.java:60)
看完错误日志还是没有搞定的话,就把代码发过来yangming1009@163.com
看下数据库连接初始化或初始化成功没?
UserInfoAction里肯定有数据库操作,这个异常告诉你,在执行SQL的时候出错了
UserInfoAction.java:43
UserInfoAction.java:60
把这个文件这2行贴出来,这里面有空指针异常。