Java 与oracle 10 XE的jdbc连接
可能重复:Java 与oracle 10 XE的jdbc连接,java,jdbc,oracle10g,Java,Jdbc,Oracle10g,可能重复: 当我尝试连接到Oracle 10g Express Edition时,会出现以下错误: java.sql.SQLException: Listener refused the connection with the following error: ORA-12505, TNS:listener does not currently know of SID given in connect descriptor The Connection descriptor used by t
当我尝试连接到Oracle 10g Express Edition时,会出现以下错误:
java.sql.SQLException: Listener refused the connection 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:xe
我的示例代码:
Class.forName("oracle.jdbc.OracleDriver");
Connection connection = null;
connection = DriverManager.getConnection("jdbc:oracle:thin:@localhost:1521:xe", "mk119", "mk119");
Statement stmt = connection.createStatement();
在数据库中:
SQL> connect mk119
Enter password:
Connected.
SQL> ed
Wrote file afiedt.buf
1* select sys_context('userenv', 'instance_name') from dual
SQL> /
SYS_CONTEXT('USERENV','INSTANCE_NAME')
----------------------------------------------------------------------
xe
SQL>
请帮我做这个
编辑:堆栈跟踪:
java.sql.SQLException: Listener refused the connection 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:xe
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:414)
at oracle.jdbc.driver.T4CConnection.<init>(T4CConnection.java:165)
at oracle.jdbc.driver.T4CDriverExtension.getConnection(T4CDriverExtension.java:35)
at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:801)
at java.sql.DriverManager.getConnection(DriverManager.java:579)
at java.sql.DriverManager.getConnection(DriverManager.java:221)
at fingerprint.DatabaseTest.main(DatabaseTest.java:14)
import java.sql.*;
public class DatabaseTest {
public static void main(String [] args){
try{
Class.forName("oracle.jdbc.OracleDriver");
Connection connection = null;
connection = DriverManager.getConnection("jdbc:oracle:thin:@localhost:1521:xe", "mk119", "mk119");
Statement stmt = connection.createStatement();
System.out.println("Connection created");
stmt.close();
connection.close();
}catch(Exception e){
e.printStackTrace();
}
}
}
根据提供的答案,检查以下内容(答案来自相关问题,可能重复): “检查\admin\NETWORK目录下的listener.ora文件是否具有以下值:
XE =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = localhost)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = XE)
)
)
"
因此,请检查您的连接url:主机、端口、sid,以确保其设置正确。请检查此项:;确保连接url正常(端口、sid等),您可以在dos提示符下运行,
tnsping xe
。如果是,输出是什么?是的,我检查过了。listener.ora没有这些信息。我添加了该文件并重新启动了数据库,但它仍然不工作。您是否收到任何新错误?没有,我收到的错误与此相同。请检查tnsnames.ora文件(可能位于$ORACLE_HOME/network/admin下)并检查类似的结构(如果需要,请添加信息)。它位于tnsnames.ora中,但仍然收到相同的错误