Java纯连接Oracle10g数据库,
连接代码如下:
Class.forName("oracle.jdbc.driver.OracleDriver");
String url="JDBC:ORACLE:thin:@127.0.0.1:1521:ORCL";
Connection con=DriverManager.getConnection(url,"wangdgsc","wangdgsc");
出现
Io 异常: Connection refused(DESCRIPTION=(TMP=)(VSNNUM=169869568)(ERR=12505)(ERROR_STACK=(ERROR=(CODE=12505)(EMFI=4))))
应该怎么解决 ?本人新手,