连接数据库的问题，急，SOS!

2001-11-22 10:17:46 90 阅读 AI 写同款 · GEO 优化AI 选题数据监测一键分发 ›

从旧版本升级到新版本ClioSoft SOS的过程是怎样的？从旧版本升级到新版本ClioSoft SOS的过程需要仔细规划和执行，以确保数据的完整性和系统的稳定性。阅读详情

JavaBean代码：
package editeq;
import java.sql.*;
import java.util.*;
public class Connect
{
protected String DBDriver="org.gjt.mm.mysql.Driver";
protected String DBUrl="jdbc:mysql://loccalhost:3306/Editeq? user=root&password=";
protected Connection Conn=null;
protected ResultSet rs=null;
protected Statement Stmt=null;
public boolean Init_Connect(){
try{
Class.forName("org.gjt.mm.mysql.Driver");
Conn=DriverManager.getConnection(DBUrl);
Stmt=Conn.createStatement();
}
catch (Exception e){
System.err.println("exception is connection:"+e.getMessage());
return false;
}
return true;
}
public ResultSet executeQuery(String sql){
rs=null;
try {
rs = Stmt.executeQuery(sql);
}
catch (Exception e){
System.err.println("aq.executeQuery:"+e.getMessage());
}
return rs;
}
public void executeUpdate(String sql){
try {
Stmt.executeUpdate(sql);
}
catch (Exception e){
System.err.println("exception is:"+e.getMessage());
}
}
public void Close_Connect(){
try{
if(this.rs!=null){
this.rs.close();
}
if(Stmt!=null){
this.Stmt.close();
}
if(Conn!=null){
this.Conn.close();
}
}
catch (Exception e){
System.err.println("exception is:"+e.getMessage());
}
}
}

Jsp连接程序！
connect.jsp
<%@page language="java" %>
<%@page import="java.sql.*" %>
<jsp:useBean id="db" scope="page" class="editeq.Connect" />
<%@page contentType="text/html;charset=gb2312" %>

test.jsp测试文件
<%@ include file="connect.jsp" %>
<%
ResultSet rs;
String Sql="SELECT landname,password FROM suppliers";
if(db.Init_Connect()) {
out.println("test ok!");
rs=db.executeQuery(Sql);
while(rs.next())
{
String landname1=rs.getString("landname");
out.println("用户名是："+landname1);
String password1=rs.getString("password");
out.println("密码是："+password1);
out.println("<br>");
}
}
else{
out.println("error!");
}
%>

报错信息！
org.apache.jasper.JasperException: Unable to compile class for JSPC:\tomcat\work\localhost_8080\_0002fEdit_0002ftest_0002ejsptest_jsp_0.java:67: ???? editeq.Connect?
editeq.Connect db = null;
^
C:\tomcat\work\localhost_8080\_0002fEdit_0002ftest_0002ejsptest_jsp_0.java:70: ???? editeq.Connect?
db= (editeq.Connect)
^
C:\tomcat\work\localhost_8080\_0002fEdit_0002ftest_0002ejsptest_jsp_0.java:75: ???? editeq.Connect?
db = (editeq.Connect) Beans.instantiate(this.getClass().getClassLoader(), "editeq.Connect");
^
3 ???

求求各位大哥，我怎么解决呀？

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