/* hao * 2018-3-27 20:57:05 * JDBC查询 * "jdbc:mysql://localhost:3306/yy2018", "root", "root" */
package java_web;
import java.sql.Connection;
import java.sql.DriverManager;//唯一的一个类
import java.sql.ResultSet;
import java.sql.Statement;
public class JDBC {
public static void main(String[] args) {
try {
Class.forName("com.mysql.jdbc.Driver");
Connection con = DriverManager.getConnection("jdbc:mysql://localhost:3306/yy2018", "root", "root");
Statement sc = con.createStatement();
String sql = "select * from user01";
ResultSet rs = sc.executeQuery(sql);
while(rs.next()){
System.out.println("提取账号: "+rs.getInt(1)+"提取密码: "+rs.getInt(2));
}
if(rs!=null){
rs.close();
}
if(sc!=null){
sc.close();
}
if(con!=null){
con.close();
}
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
永远不要太自以为是,谁知道自己在别人眼里是一副什么模样