你好,我遇到了以下错误
java.lang.ClassNotFoundException: oracle.jdbc.pool.OracleConnectionPoolDataSource
Exception in thread "main" Message: No suitable driver found for jdbc:odbc:10.43.210.170:1521:radem
java.lang.NullPointerException
at com.test.DBcnx.main(DBcnx.java:25)
我知道它之前已发布并且我检查了答案..试图将驱动程序(ojdbc14。jar)放在与该类相同的路径中,但仍然是相同的错误..我在java中的业余种类所以基本上我我不知道我在做什么或我应该做什么..我的代码如下:
package com.test;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
public class DBcnx {
//connection
static String url="jdbc:thin:oracle:10.43.210.170:1521:radem";
static String user="USER1";
static String pass="radem";
static String driver="oracle.jdbc.pool.OracleConnectionPoolDataSource";
static Connection con;
static boolean isconnect ;
public static void main(String args[] ) throws SQLException
{
isconnect=Connect(url,user,pass,driver);
String select = "select * from dual";
Statement stmt = con.createStatement();
ResultSet result = stmt.executeQuery(select);
while( result.next())
{
System.out.println(result.getString("TABLE_NAME"));
}
stmt.close();
}
public static boolean Connect(String url,String user,String pass, String driver)
{
try{
try{
Class.forName(driver);
System.out.println("chargement driver");
}catch(ClassNotFoundException e)
{
System.err.println("Chargement drivers echoue\n"+e);
}
con = DriverManager.getConnection(url,user,pass);
System.out.println("\nConnection a la base etablie");
}
catch(Exception evt)
{
System.out.println("Message: "+ evt.getMessage()); ;
return false;
}
return true;
}
}
任何帮助都是最受欢迎的..谢谢!
答案 0 :(得分:0)
您的驱动程序类名称不正确。它应该是oracle.jdbc.OracleDriver。
您返回一个布尔标志以指示连接是否成功,但您忽略它。