Topic: 天才们看看,超级奇怪的问题~~~!!!!!

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1.天才们看看,超级奇怪的问题~~~!!!!! Copy to clipboard
Posted by: songbenlijia
Posted on: 2005-04-28 10:12

tomcat 5.5.7+jdk1.5.0+postgresql 8
我写了一个javabean mark.DateBase
我在测试程序test.java里面这样测试
DateBase db=new DateBase();
int num=db.executeQuery("select * from news");
System.out.println(num);
输出结果为3
但是在jsp里面
<%@ page language="java" import="java.sql.*"%>
<jsp:useBean id="db" scope="page" class="mark.DateBase"/>
<%
int num=db.executeQuery("select * from news");
out.println(num);
%>
结果确是0,
知道这是怎么回事情???????????


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