public?class?DBUtil?{
private?static?final?String?URL="jdbc:mysql://localhost:3306/test";
private?static?final?String?NAME="root";
private?static?final?String?PASSWORD="1234";
public?static?void?main(String[]?args)?throws?ClassNotFoundException,?SQLException?{
Class.forName("com.mysql.jdbc.Driver");
Connection?c=DriverManager.getConnection(URL,NAME,PASSWORD);
Statement?s=c.createStatement();
ResultSet?rs=s.executeQuery("select?user_name?from?goddess");
System.out.println(rs.getString("user_name")+","+rs.getInt("age"));
System.out.println("adfasf");
}
}
沒有報錯，也沒有任何文字輸出
2017-06-05
ResultSet只能使用它里面的next()方法，逐個的讀去數(shù)據(jù)
輸出前加一句 ??rs.next(); ?就可以了。