AVA Oracle JDBC操作rs.getMetaData()getTable Name()メソッド

java  Oracle   ResultSet.getMetaData().getTableName()      “”，    ？？？
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     ：

public static void main(String[] args) throws Exception { String className = "oracle.jdbc.driver.OracleDriver"; String url = "jdbc:oracle:thin:@127.0.0.1:1521:ORCL"; String user = "scott"; String password = "tiger"; Class.forName(className); Connection conn = DriverManager.getConnection(url, user, password); String sql ="select * from emp "; Statement st = conn.createStatement(); ResultSet rs = st.executeQuery(sql); System.out.println("---:"+rs.getMetaData().getTableName(1)); }

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