ORA-12505, TNS:listener does not currently know of SID given in connect descriptor

ORA-12505, TNS:listener does not currently know of SID given in connect descriptor
The Connection descriptor used by the client was:
-- 这里的sid_name错误
1*4.1*1.2*4.1**:1521:orcltest

        at oracle.jdbc.driver.SQLStateMapping.newSQLException(SQLStateMapping.java:70)
        at oracle.jdbc.driver.DatabaseError.newSQLException(DatabaseError.java:112)
        at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:173)
        at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:460)
        at oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:411)
        at oracle.jdbc.driver.PhysicalConnection.<init>(PhysicalConnection.java:490)
        at oracle.jdbc.driver.T4CConnection.<init>(T4CConnection.java:202)
        at oracle.jdbc.driver.T4CDriverExtension.getConnection(T4CDriverExtension.java:33)
        at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:474)
        at org.jboss.resource.adapter.jdbc.local.LocalManagedConnectionFactory.createManagedConnection(LocalManagedConnectionFactory.java:154)

注：

jdbc连接数据库的时候，需要使用数据库的sid_name，而不是数据库的services_name.

而使用plsql连接数据库的时候，只需要数据库的services_name即可，所以修改连接字符串中的services_name 为sid_name.

查询sid_name的方法：
select INSTANCE_NAME from v$instance;