有如下提示: root cause java.lang.NullPointerException at firm.ConnPool.init(ConnPool.java:35) at firm.ConnPool.(ConnPool.java:28) at firm.ConnBean.init(ConnBean.java:30) at firm.ConnBean.(ConnBean.java:15) at firm.ConnBean.getInstance(ConnBean.java:22) at firm.dbconn.setconn(dbconn.java:15) at firm.dbconn.executeQuery(dbconn.java:21) at org.apache.jsp.user_jsp._jspService(user_jsp.java:64) …………………………
不在报告有如上所提的错误!但是出现Exception report那位高人,能帮我看看程序中什么地方错了,再次感激不禁!
root cause java.lang.NullPointerException
at firm.ConnPool.init(ConnPool.java:35)
at firm.ConnPool.(ConnPool.java:28)
at firm.ConnBean.init(ConnBean.java:30)
at firm.ConnBean.(ConnBean.java:15)
at firm.ConnBean.getInstance(ConnBean.java:22)
at firm.dbconn.setconn(dbconn.java:15)
at firm.dbconn.executeQuery(dbconn.java:21)
at org.apache.jsp.user_jsp._jspService(user_jsp.java:64)
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