Myeclipse连接oracle数量提示ORA-12504, TNS:listener was not given the SID in CONNECT_DATA。

Posted 2023-05-08

源程序为：
package com;
import java.sql.*;
public class TestJDBC1
/**
* @param args
*/
public static void main(String[] args)
// TODO Auto-generated method stub
Connection conn = null;
try
Class.forName("oracle.jdbc.driver.OracleDriver");
conn = DriverManager.getConnection("jdbc:oracle:thin:@localhost:1521:gonghanqiang","scott","tiger");
Statement st = conn.createStatement();
ResultSet rs = st.executeQuery("select * from dept");
while(rs.next())
System.out.println(rs.getInt("deptno"));


rs.close();
st.close();
conn.close();
catch (ClassNotFoundException e)
// TODO Auto-generated catch block
e.printStackTrace();
catch (SQLException e)
// TODO Auto-generated catch block
e.printStackTrace();



导入的oracle驱动为：ojdbc6.jar
运行结果为：
java.sql.SQLException: Listener refused the connection with the following error:
ORA-12504, TNS:listener was not given the SID in CONNECT_DATA

at oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:412)
at oracle.jdbc.driver.PhysicalConnection.<init>(PhysicalConnection.java:531)
at oracle.jdbc.driver.T4CConnection.<init>(T4CConnection.java:221)
at oracle.jdbc.driver.T4CDriverExtension.getConnection(T4CDriverExtension.java:32)
at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:503)
at java.sql.DriverManager.getConnection(DriverManager.java:579)
at java.sql.DriverManager.getConnection(DriverManager.java:243)
at com.TestJDBC1.main(TestJDBC1.java:12)
Caused by: oracle.net.ns.NetException: Listener refused the connection with the following error:
ORA-12504, TNS:listener was not given the SID in CONNECT_DATA

at oracle.net.ns.NSProtocol.connect(NSProtocol.java:385)
at oracle.jdbc.driver.T4CConnection.connect(T4CConnection.java:1042)
at oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:301)
... 7 more

参考技术A 你的数据库监听配置有问题吧，检查下你数据库的tnsnames.ora配置文件本回答被提问者采纳

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