No suitable driver是什么原因造成?如何解决?

albert 2002-04-29 05:03:00

各路大虾,小弟用JSP连接数据库(SQL SERVER和ACCESS).但总是在Tomcat的DOS窗口内显示"No suitable driver".是什么原因? 小弟是Win2000 Server + Tomcat4.0.3 + Java2sdk1.4.0+MS SQL Server2000.
源程序如下:

====================
sql_data.java:
====================

import java.sql.*;
public class sql_data
{
String sDBDriver = "sun.jdbc.odbc.JdbcObdcDriver";
String sConnStr = "jdbc:odbc:bct";
Connection conn = null;
Statement stmt = null;
ResultSet rs = null;

public sql_data()
{
try
{
Class.forName(sDBDriver);
}
catch( java.lang.ClassNotFoundException e)
{
System.err.println("sql_data():" + e.getMessage());
}
}

public ResultSet executeQuery(String sql)
{
rs = null;
try
{
conn = DriverManager.getConnection(sConnStr);
stmt = conn.createStatement();
rs = stmt.executeQuery(sql);
}
catch(SQLException ex)
{
System.err.println("sql_data.executeQuery:" + ex.getMessage());
}
return rs;
}

====================
employeetel.jsp:
====================

<%@ page language="java" %>
<%@ page import="java.io.*" %>
<%@ page import="java.sql.*" %>
<%@ page import="sql_data" %>

<%@ page contentType="text/html;charset=gb2312" %>
<jsp:useBean id="sqlbean" class="sql_data" scope="session" />

<html>

<head>
<meta name="GENERATOR" content="Microsoft FrontPage 5.0">
<meta name="ProgId" content="FrontPage.Editor.Document">
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<title>员工通信录</title>
</head>

<body>

<%! String strName, strExtension, strMobile; %>

<p>　</p>

<%
ResultSet RS = sqlbean.executeQuery("SELECT * FROM EmployeeTel");
while( RS.next() )
{
strName = RS.getString( "Name" );
strExtension = RS.getString( "Extension" );
strMobile = RS.getString( "Mobile" );
%>

<%
}
RS.close();
%>

</body>

</html>

}

...全文

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albert 2002-05-08

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谢谢 waterdragonfly(见到PLMM就脸红)和wjfxiao(卧龙)!

albert 2002-04-30

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再加20分!!

waterdragonfly 2002-04-30

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如果只连接SQL SERVER的话可以用微软的JDBC fro sqlserver驱动，速度快多了。

waterdragonfly 2002-04-30

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用 JDBC-ODBC桥，好像不存在数据库驱动加载的问题 (也没有相应的驱动让你加载 )，你的 DSN设置正确吗？

albert 2002-04-29

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wjfxiao(卧龙) 大虾,估计没有加载,数据库驱动库如何加载?

wjfxiao 2002-04-29

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数据库驱动库加载了吗？

albert 2002-04-29

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各路大虾,小弟用JSP连接数据库(SQL SERVER和ACCESS).但总是在Tomcat的DOS窗口内显示"No suitable driver".是什么原因? 小弟是Win2000 Server + Tomcat4.0.3 + Java2sdk1.4.0+MS SQL Server2000.
源程序如下:

====================
sql_data.java:
====================

import java.sql.*;
public class sql_data
{
String sDBDriver = "sun.jdbc.odbc.JdbcObdcDriver";
String sConnStr = "jdbc:odbc:bct";
Connection conn = null;
Statement stmt = null;
ResultSet rs = null;

public sql_data()
{
try
{
Class.forName(sDBDriver);
}
catch( java.lang.ClassNotFoundException e)
{
System.err.println("sql_data():" + e.getMessage());
}
}

public ResultSet executeQuery(String sql)
{
rs = null;
try
{
conn = DriverManager.getConnection(sConnStr);
stmt = conn.createStatement();
rs = stmt.executeQuery(sql);
}
catch(SQLException ex)
{
System.err.println("sql_data.executeQuery:" + ex.getMessage());
}
return rs;
}

}

====================
employeetel.jsp:
====================

<%@ page language="java" %>
<%@ page import="java.io.*" %>
<%@ page import="java.sql.*" %>
<%@ page import="sql_data" %>

<%@ page contentType="text/html;charset=gb2312" %>
<jsp:useBean id="sqlbean" class="sql_data" scope="session" />

<html>

<head>
<meta name="GENERATOR" content="Microsoft FrontPage 5.0">
<meta name="ProgId" content="FrontPage.Editor.Document">
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<title>员工通信录</title>
</head>

<body>

<%! String strName, strExtension, strMobile; %>

<p>　</p>

<%
ResultSet RS = sqlbean.executeQuery("SELECT * FROM EmployeeTel");
while( RS.next() )
{
strName = RS.getString( "Name" );
strExtension = RS.getString( "Extension" );
strMobile = RS.getString( "Mobile" );
%>

<%
}
RS.close();
%>

</body>

</html>