ORA-12505:TNS监听器当前不知道连接描述符中给出的SID

Question

我正在使用Oracle数据库.我用Java编写了一个小的JDBC连接程序,但是我遇到了一个监听器的问题.

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;

public class JdbcConnection {
    public static void main(String[] args) throws SQLException,ClassNotFoundException {
        String url = "jdbc:oracle:thin:@localhost:1521:orcl";
        String user = "system";
        String password = "password";
        Connection connection = null;

        Class.forName("oracle.jdbc.driver.OracleDriver");
        connection = DriverManager.getConnection(url, user, password);
        if(connection!=null){
            System.out.println("Success in connnection");
        } else {
            System.out.println("failure in connection ");
        }
    }
}

我收到以下异常:

C:\Users\Administrator\Desktop>java JdbcConnection
Exception in thread "main" java.sql.SQLException: Listener refused the connectio
n with the following error:
ORA-12505, TNS:listener does not currently know of SID given in connect descriptor
The Connection descriptor used by the client was:
localhost:1521:orcl

        at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java
:112)
        at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java
:261)
        at oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:387)
        at oracle.jdbc.driver.PhysicalConnection.<init>(PhysicalConnection.java:
441)
        at oracle.jdbc.driver.T4CConnection.<init>(T4CConnection.java:165)
        at oracle.jdbc.driver.T4CDriverExtension.getConnection(T4CDriverExtensio
n.java:35)
        at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:801)
        at java.sql.DriverManager.getConnection(Unknown Source)
        at java.sql.DriverManager.getConnection(Unknown Source)
        at JdbcConnection.main(JdbcConnection.java:18)

这是输出 lsnrctl status

LSNRCTL for 64-bit Windows: Version 12.1.0.1.0 - Production on 16-JUN-2015 13:43
:41

Copyright (c) 1991, 2013, Oracle.  All rights reserved.

Welcome to LSNRCTL, type "help" for information.

LSNRCTL> status
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC1521)))
STATUS of the LISTENER
------------------------
Alias                     LISTENER
Version                   TNSLSNR for 64-bit Windows: Version 12.1.0.1.0 - Produ
ction
Start Date                16-JUN-2015 12:02:52
Uptime                    0 days 1 hr. 40 min. 52 sec
Trace Level               off
Security                  ON: Local OS Authentication
SNMP                      OFF
Listener Parameter File   C:\app\orauser\product\12.1.0\dbhome_1\network\admin\l
istener.ora
Listener Log File         C:\app\orauser\diag\tnslsnr\hydwemvm\listener\alert\lo
g.xml
Listening Endpoints Summary...
  (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(PIPENAME=\\.\pipe\EXTPROC1521ipc)))
  (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=hydwemvm)(PORT=1521)))
Services Summary...
Service "CLRExtProc" has 1 instance(s).
  Instance "CLRExtProc", status UNKNOWN, has 1 handler(s) for this service...
The command completed successfully

Answer 1

如果您知道您的oracle数据库SID,那么使用

jdbc:oracle:thin:@localhost:1521:orcl

如果您有服务名称,请在下面使用

jdbc:oracle:thin:@localhost:1521/orcl

此外,请确保具有名称的服务名称ORCL应该已启动并正在运行.如果仍然无效,则需要重新启动计算机并在上面重试.

还是行不通 ？然后,尝试以下方法:

SYSTEM用户登录并LOCAL_LISTENER通过在SQL下面运行来注册.

alter system set local_listener = '(ADDRESS=(PROTOCOL=TCP)(HOST=localhost)(PORT=1521))' scope = both;
alter system register;

如何检查oracle SID和服务名称:

SELECT sys_context('USERENV', 'SID') FROM DUAL; -- It will return your oracle database SID

SELECT sys_context('USERENV', 'SERVICE_NAME') FROM DUAL; -- It will return your oracle database service name