Database 导不进来？

Question

package steudent;import java.util.*;
import java.sql.*;
import javax.swing.*;/**
 * 有关学生信息数据库操作的类
 */
public class StuBean {
        String sql;
        ResultSet rs = null;        String sNum;
        String sName;
        String sSex;
        String sBirth;
        String sHome;
        String sEthnic;
        String sYear;
        String sMajor;
        String sCollege;        String colName;//列名
        String colValue;//列值
        String colValue2;//列值        int stuId;//学生的新学号        /**
         * 添加学生信息
         */
        public void stuAdd(String name, String sex, String birth, String home, String ethnic, String year, String major, String college){                Database DB = new Database();                this.sName = name;
                this.sSex = sex;
                this.sBirth = birth;
                this.sHome = home;
                this.sEthnic = ethnic;
                this.sYear = year;
                this.sMajor = major;
                this.sCollege = college;                if(sName == null||sName.equals("")){
                        JOptionPane.showMessageDialog(null, "请输入学生姓名", "错误", JOptionPane.ERROR_MESSAGE);
                        return;
                }
                else{
                        sql = "insert into student(sname,ssex,sbirth,shome,sethnic,syear,smajor,scollege) values ('"+sName+"','"+sSex+"','"+sBirth+"','"+sHome+"','"+sEthnic+"','"+sYear+"','"+sMajor+"','"+sCollege+"')";                        try{
                                DB.OpenConn();
                                DB.executeUpdate(sql);
                                JOptionPane.showMessageDialog(null,"成功添加一条新的纪录！");                        }
                        catch(Exception e){
                                System.out.println(e);
                                JOptionPane.showMessageDialog(null, "保存失败", "错误", JOptionPane.ERROR_MESSAGE);
                        }
                        finally {
                                DB.closeStmt();
                                DB.closeConn();
                        }
                }
        }
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Database DB = new Database();
创建实例都要报错......
Database 没导进来.......import java.util.*;是这句导进来吗？盼望大家解决哈
谢谢

Answer 1

JAVA中是你这样操作数据库的吗？
根本没有什么DataBase类
给你个样例
Class.forName("com.mysql.jdbc.Driver");
String dbName="test";
String userName="root";
String userPwd="123456";
String url="jdbc:mysql://localhost/"+dbName+"?user="+userName+"&password="+userPwd;
 
conn=DriverManager.getConnection(url);