Oracle 无法创建PoolableConnectionFactory（IO오；류；：端口号的数字格式无效）

在url字段中将“xe”替换为您的端口号。它应该是这样的，即

jdbc:oracle:thin:@localhost:1521

或

jdbc:oracle:thin:@localhost:1521:xe

<Context>
    <Resource name="jdbc/myoracle"
            auth="Container"
            type="javax.sql.DataSource" 
            driverClassName="oracle.jdbc.OracleDriver" 
            url="jdbc:oracle:thin:@localhost:xe" 
            username="basic" 
            password="basic"
            maxTotal="10"
            maxIdle="5"
            maxWaitMillis="1" />
</Context>

Cause: org.springframework.jdbc.CannotGetJdbcConnectionException: Could not get JDBC Connection; nested exception is java.sql.SQLException: Cannot create PoolableConnectionFactory (IO 오류: Invalid number format for port number)