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《jsp项目开发全程实录》求助
发表在JavaWeb图书答疑
2009-03-08
是否精华
是
否
版块置顶:
是
否
博客网 登陆出错
description The server encountered an internal error () that prevented it from fulfilling this request.
exception
java.lang.NullPointerException
com.wy.tool.JDBConnection.executeQuery(JDBConnection.java:52)
com.wy.dao.ConsumerDao.getConsumerForm(ConsumerDao.java:98)
com.wy.webiter.ConsumerServlet.checkConsumer(ConsumerServlet.java:169)
com.wy.webiter.ConsumerServlet.doGet(ConsumerServlet.java:16)
com.wy.webiter.ConsumerServlet.doPost(ConsumerServlet.java:186)
javax.servlet.http.HttpServlet.service(HttpServlet.java:637)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
jar包已加入
jdbc已加入
环境jdk1.6，tomcat6.0
description The server encountered an internal error () that prevented it from fulfilling this request.
exception
java.lang.NullPointerException
com.wy.tool.JDBConnection.executeQuery(JDBConnection.java:52)
com.wy.dao.ConsumerDao.getConsumerForm(ConsumerDao.java:98)
com.wy.webiter.ConsumerServlet.checkConsumer(ConsumerServlet.java:169)
com.wy.webiter.ConsumerServlet.doGet(ConsumerServlet.java:16)
com.wy.webiter.ConsumerServlet.doPost(ConsumerServlet.java:186)
javax.servlet.http.HttpServlet.service(HttpServlet.java:637)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
jar包已加入
jdbc已加入
环境jdk1.6，tomcat6.0
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