java连接oracle出错

Question

[color=red]java.sql.SQLException: Io 异常: The Network Adapter could not establish the connection[/color]
用plsql developer能连接上，但是在程序里面出错了
[code="java"]java.sql.SQLException: Io 异常: The Network Adapter could not establish the connection
at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:111)
at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:145)
at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:254)
at oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:386)
at oracle.jdbc.driver.PhysicalConnection.(PhysicalConnection.java:413)
at oracle.jdbc.driver.T4CConnection.(T4CConnection.java:164)
at oracle.jdbc.driver.T4CDriverExtension.getConnection(T4CDriverExtension.java:34)
at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:752)
at java.sql.DriverManager.getConnection(DriverManager.java:582)
at java.sql.DriverManager.getConnection(DriverManager.java:185)
at com.test.DB.getConn(DB.java:37)
at com.test.DB.main(DB.java:60)
[/code]

Answer 1

[quote]private final static String DRIVER = "oracle.jdbc.driver.OracleDriver";

private final static String URL = "jdbc:oracle:thin:@l92.168.88.219:1521:gs";   

[/quote]

我去 “l92.168.88.219:1521”， 这个l92 不是数字192 是字母l（大写字母：L） ，不是数字1