UC知道Eclipse的错误
来源：百度知道 编辑：UC知道 时间：2024/09/21 19:10:03
会出现一下错误提示！搞不懂！
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.zds.emis.common.db.DBExecute.preparedStatement(DBExecute.java:82)
com.zds.emis.author.dao.imp.UserInfoDao.longin(UserInfoDao.java:188)
com.zds.emis.author.service.imp.LoginBs.longin(LoginBs.java:12)
com.zds.emis.author.servlet.LonginServlet.doPost(LonginServlet.java:28)
javax.servlet.http.HttpServlet.service(HttpServlet.java:710)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
com.zds.emis.common.util.EncodingFilter.doFilter(EncodingFilter.java:36)
note The full stack trace of the root cause is available in the Apache Tomcat/6.0.10 logs.
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.zds.emis.common.db.DBExecute.preparedStatement(DBExecute.java:82)
com.zds.emis.author.dao.imp.UserInfoDao.longin(UserInfoDao.java:188)
com.zds.emis.author.service.imp.LoginBs.longin(LoginBs.java:12)
com.zds.emis.author.servlet.LonginServlet.doPost(LonginServlet.java:28)
javax.servlet.http.HttpServlet.service(HttpServlet.java:710)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
com.zds.emis.common.util.EncodingFilter.doFilter(EncodingFilter.java:36)
note The full stack trace of the root cause is available in the Apache Tomcat/6.0.10 logs.
1、系统有问题，或病毒破坏了系统注册表。
2、安装有问题，不知到你用的是什么版本的。或path没有配置好。
3、JDK有问题。
解决办法
重新安装系统，最好用安装版本的系统再装好驱动。
然后从新安装JDK，再配置好path。
我现在用的是3.2的汉化版本没有出现任何问题。
注：个人经验仅供参考 如果有不懂的问题可M我