Part of the code:
Class.forname (" oracle JDBC. OracleDriver ");
Connection c==DriverManager. GetConnection (" JDBC: oracle: thin: @ 127.0.0.1:1521: wouldn ", name, pass);

Win10 run:

Java. SQL. SQLRecoverableException: IO error: Connection refused
At oracle, the JDBC driver. T4CConnection. Logon (T4CConnection. Java: 458)
At oracle, the JDBC driver. PhysicalConnection. & lt; init> (PhysicalConnection. Java: 546)
At oracle, the JDBC driver. T4CConnection. & lt; init> (T4CConnection. Java: 236)
At oracle, the JDBC driver. T4CDriverExtension. GetConnection (T4CDriverExtension. Java: 32)
At oracle, the JDBC driver. OracleDriver. Connect (OracleDriver. Java: 521)
The at Java. SQL. DriverManager. GetConnection (DriverManager. Java: 571)
The at Java. SQL. DriverManager. GetConnection (DriverManager. Java: 215)
At com. Yonyou. Test. DBConnection. DbConn (DBConnection. Java: 26)
At com. Yonyou. Test. JdbcTest. Main (jdbcTest. Java: 24)
Under Caused by: oracle.net.ns.NetException: Connection refused
At oracle.net.ns.NSProtocol.connect NSProtocol. Java: (395)
At oracle, the JDBC driver. T4CConnection. Connect (T4CConnection. Java: 1102)
At oracle, the JDBC driver. T4CConnection. Logon (T4CConnection. Java: 320)
. 8 more

CodePudding user response:

Whether to shut down the firewall, 1521 ports are disabled

CodePudding user response:

Connect the native library, use up sqlplus or first PLSQL tools, such as testing whether can normal connection