java mysql操作

import java.awt.Insets;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import com.mysql.jdbc.PreparedStatement;
import com.mysql.jdbc.Statement;
public class yichang {

/**
* @param args
*/
static Connection con;
static ResultSet res;
static java.sql.Statement sql;
public Connection getConnection()
{
try {
Class.forName("com.mysql.jdbc.Driver"); //mysql驱动名
System.out.println("数据库驱动加载成功");
} catch (ClassNotFoundException e) {
e.printStackTrace();
}
try{
con=DriverManager.getConnection("jdbc:mysql://localhost:3306/db_jbdc","root","");  //数据库名称
System.out.println("数据库连接成功");   //连接
}catch(SQLException e)
{
e.printStackTrace();
}
return con;
}
public static void main(String[] args) {
yichang c=new yichang();
con=c.getConnection();
/*try{
sql=con.createStatement();  //查询
res=sql.executeQuery("select *from wsp1");  //表名称
while(res.next())
{
String id=res.getString("id");
String name=res.getString("name");
String score=res.getString("score");
System.out.println(id+" "+name+" "+score);
}
}catch(SQLException e)
{
e.printStackTrace();
}*/
/*try{
sql=con.createStatement();
res=sql.executeQuery("select *from wsp1 where name like'王%'");//模糊查询 这地方是开头为王，%王为结尾，
while(res.next())                                        //%王%为中间包含
{
String name=res.getString("name");
System.out.println(name);
}
}catch(SQLException e)
{
e.printStackTrace();
}*/
/*try{   // 预处理语句
java.sql.PreparedStatement sq=con.prepareStatement("select *from wsp1 where id=?");
sq.setInt(1,2);
res=sq.executeQuery();
while(res.next())
{
String id=res.getString("id");
String name=res.getString("name");
System.out.println(id+" "+name);
}

}catch(Exception e)
{
e.printStackTrace();
}*/
try{  //数据的添加，修改，删除
sq=conn.prepareStatement("insert into custom (name,password,form) values (?,?,?)");  //添加数据
sq.setString(1,rname);
sq.setString(2,pass);
sq.setInt(3,0);
sq.executeUpdate();

/*java.sql.PreparedStatement sq=con.prepareStatement("update wsp1 set score=?,name=? where id=?");
sq.setInt(1, 11);     //修改语句：第一个？更新score 第二个更新name 第三个查找id
sq.setString(2,"zz");
sq.setInt(3,2);
sq.executeUpdate();*/

java.sql.PreparedStatement sq=con.prepareStatement("delete from wsp1  where id=?");
sq.setInt(1, 4);
sq.executeUpdate();
}catch(Exception e)
{
e.printStackTrace();
}

}
}

传入MySQL时间设置单元格式为 datetime

Date date = new Date();//获得系统时间.String nowTime = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(date);//将时间格式转换成符合Timestamp要求的格式.Timestamp ndate = Timestamp.valueOf(nowTime);//把时间转换sq=conn.prepareStatement("insert into liuyan (content,date) values (?,?)");sq.setString(1,text);sq.setTimestamp(2,ndate);