JDBC链接oracle时ORA-12505错误求助！

Areaze 2016-01-22 12:17:51

看的马士兵讲的JDBC部分的视频，代码方面什么没有问题，用的是oracle 11g，其中链接字串
Connection conn = DriverManager.getConnection("jdbc:oracle:thin:@127.0.0.1:1521:SXT", "scott", "tiger");
然后运行出现ORA-12505错误TNS:listener does not currently know of SID given in connect descriptor

然后按照网上的解决方法对listener.ora文件进行添加ssid设置并且对host做了修改，如下面红字。# listener.ora Network Configuration File: F:\Oracle\product\11.2.0\dbhome_1\NETWORK\ADMIN\listener.ora
# Generated by Oracle configuration tools.

SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(SID_NAME = CLRExtProc)
(ORACLE_HOME = F:\Oracle\product\11.2.0\dbhome_1)
(PROGRAM = extproc)
(ENVS = "EXTPROC_DLLS=ONLY:F:\Oracle\product\11.2.0\dbhome_1\bin\oraclr11.dll")
)

(SID_DESC =
(GLOBAL_DBNAME = orcl)
(ORACLE_HOME = F:\Oracle\product\11.2.0\dbhome_1)
(SID_NAME = orcl)
)
)

LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))
)
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = 127.0.0.1)(PORT = 1521))
)
)

ADR_BASE_LISTENER = F:\Oracle

然后由对tnsnames.ora进行host字段修改，如下。
# tnsnames.ora Network Configuration File: F:\Oracle\product\11.2.0\dbhome_1\network\admin\tnsnames.ora
# Generated by Oracle configuration tools.

LISTENER_ORCL =
(ADDRESS = (PROTOCOL = TCP)(HOST = 127.0.0.1)(PORT = 1521))

ORACLR_CONNECTION_DATA =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))
)
(CONNECT_DATA =
(SID = CLRExtProc)
(PRESENTATION = RO)
)
)

ORCL =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = 127.0.0.1)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = orcl)
)
)

到这里listener.ora和tnsnames.ora中的host设置和eclipse里的host设置都已经设置为127.0.0.1。
然后再次运行代码依旧显示ORA-12505错误,看了一天的网上教程，试了无数次可是还是这个样子，求大神帮我看下到底哪里出了问题，太感谢了！

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youshang520i 2018-01-18

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引用 9 楼 wpfdh的回复:

问题已经解决，在设置完后要关闭所有数据库服务然后重新打开就能用了。

可以帮我解决一下？

Areaze 2016-01-22

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附上eclipse里面用到的代码，其中ojdbc6.jar包已经添加了。 import java.sql.*; public class TestJDBC { public static void main(String[] args) throws Exception { Class.forName("oracle.jdbc.driver.OracleDriver"); Connection conn = DriverManager.getConnection("jdbc:oracle:thin:@127.0.0.1:1521:SXT", "scott", "tiger"); Statement stmt = conn.createStatement(); ResultSet rs = stmt.executeQuery("select * from dept"); while(rs.next()){ System.out.println(rs.getString("deotno")); System.out.println(rs.getInt("deptno")); rs.close(); //关闭管道 stmt.close(); conn.close(); } } }

Areaze 2016-01-22

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引用 7 楼 genglukuan 的回复:

我建议你用一个oracle客户端，先连接一下，看这个数据库是否能连接上。

你好我是用sqlplus登录的，正常登录没问题，然后相关各项服务比如监听的内容也都正常开启，驱动jar包用的是ojdbc6.jar这个jar包。然后listener.ora内容： # listener.ora Network Configuration File: F:\Oracle\product\11.2.0\dbhome_1\NETWORK\ADMIN\listener.ora # Generated by Oracle configuration tools. SID_LIST_LISTENER = (SID_LIST = (SID_DESC = (SID_NAME = CLRExtProc) (ORACLE_HOME = F:\Oracle\product\11.2.0\dbhome_1) (PROGRAM = extproc) (ENVS = "EXTPROC_DLLS=ONLY:F:\Oracle\product\11.2.0\dbhome_1\bin\oraclr11.dll") ) (SID_DESC = (GLOBAL_DBNAME = orcl) (ORACLE_HOME = F:\Oracle\product\11.2.0\dbhome_1) (SID_NAME = orcl) ) ) LISTENER = (DESCRIPTION_LIST = (DESCRIPTION = (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521)) ) (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = 127.0.0.1)(PORT = 1521)) ) ) ADR_BASE_LISTENER = F:\Oracle tnsnames.ora内容： # tnsnames.ora Network Configuration File: F:\Oracle\product\11.2.0\dbhome_1\network\admin\tnsnames.ora # Generated by Oracle configuration tools. LISTENER_ORCL = (ADDRESS = (PROTOCOL = TCP)(HOST = 127.0.0.1)(PORT = 1521)) ORACLR_CONNECTION_DATA = (DESCRIPTION = (ADDRESS_LIST = (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521)) ) (CONNECT_DATA = (SID = CLRExtProc) (PRESENTATION = RO) ) ) ORCL = (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = 127.0.0.1)(PORT = 1521)) (CONNECT_DATA = (SERVER = DEDICATED) (SERVICE_NAME = orcl) ) ) 以下是改正后的Eclipse代码内容

import java.sql.*;
public class TestJDBC {

	public static void main(String[] args) throws Exception {
		Class.forName("oracle.jdbc.driver.OracleDriver");
		Connection conn = DriverManager.getConnection("jdbc:oracle:thin:@127.0.0.1:1521:ORCL", "scott", "tiger");
		Statement stmt = conn.createStatement();
		ResultSet rs = stmt.executeQuery("select * from dept");
		while(rs.next()){
			System.out.println(rs.getString("deotno"));//把deptno字段当做字符串拿出来
			System.out.println(rs.getInt("deptno"));//把deptno字段当做Int类型拿出来
			rs.close(); //关闭管道
			stmt.close();
			conn.close();
		}
	}

}

genglukuan 2016-01-22

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我建议你用一个oracle客户端，先连接一下，看这个数据库是否能连接上。

Areaze 2016-01-22

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引用 5 楼 genglukuan 的回复:

你自己配置的实例名称是orcl，配置的连接串为什么是stx？？？

谢谢这个改过来了，然后执行代码，运行后显示一下错误头快爆炸了 = = Exception in thread "main" java.sql.SQLException: Socket read timed out 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(Unknown Source) at java.sql.DriverManager.getConnection(Unknown Source) at TestJDBC.main(TestJDBC.java:6) Caused by: oracle.net.ns.NetException: Socket read timed out at oracle.net.ns.Packet.receive(Packet.java:320) at oracle.net.ns.NSProtocol.connect(NSProtocol.java:286) at oracle.jdbc.driver.T4CConnection.connect(T4CConnection.java:1042) at oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:301) ... 7 more

genglukuan 2016-01-22