首先建立一個包 建立Test類和util類

import  Ke.util;
import java.text.DateFormat;
import java.text.ParsePosition;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.sql.*;
import java.util.Scanner;
public class Test {
    static Connection conn;
    static
 
 PreparedStatement ps = null;
    static ResultSet rs;
    static String sql = "select * from Ku_c";
    static util ut= new util();
    static Scanner in = new Scanner(System.in);
     static int id;
     static String name;//商品名稱
     static String name_C;//生產廠家
     static String Xing_hao;//型號
     static
 
 String Gui;//規格
     static int num;//數量
     static Date create_date=new Date();
     static String date;
     static String name_Dan;//入庫/出庫單位
     static String name_peo;//送貨提貨人
     public static int a_id() {
         return id;
     }
     public static String a_name() {
         return name;
     }
     
 
public static String a_name_C() {
         return name_C;
     }
     public static String a_Xing_hao() {
         return Xing_hao;
     }
     public static String a_Gui() {
         return Gui;
     }
     public static int a_num() {
         return num;
     }
    
     public static Date a_create_date() {
            return create_date;
     }
     public static String a_date() {
         return date;
     } 
     public static String a_name_Dan() {
         return name_Dan;
     } 
     public static String a_name_peo() {
         return name_peo;
     }
public static int add(String Name,int Id,String Name_C,String Xing,String gui,int Num,String Name_Dan,String Name_peo,String Date)
{
     conn= ut.getConn();
     String sql="insert into Ku_c values(?,?,?,?,?,?,?,?,?,?)";
     int b=0;
     try {
         ps=conn.prepareStatement(sql);
         ps.setString(2,Name);
         ps.setInt(1,Id);
         ps.setString(3, Name_C);
         ps.setString(4, Xing);
         ps.setString(5, gui);
         ps.setInt(6, Num);
         ps.setString(8, Name_Dan);
         ps.setString(9, Name_peo);
         create_date=new Date();
         Timestamp t=new Timestamp(create_date.getTime());
         System.out.println(t);
         ps.setTimestamp(7, t);
         ps.setString(10, Date);
         
         /*DateFormat df=new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
         String i=df.format(create);
         ps.setString(5, i);*/
         
         //ps.setString(5, i);
         
         int a=ps.executeUpdate();
         if(a>0) {
             b++;
             System.out.println("新增成功");
             
         }
         else {
             System.out.println("新增失敗");
         }
     }catch(Exception e) {
         e.printStackTrace();
     }
     try {
         if(ps!=null)ps.close();
         if(conn!=null)conn.close();
     }catch(Exception e2) {
         e2.printStackTrace();
     }
    return b;
}
public static int uqdate(String Name,int Id,String Name_C,String Xing,String gui,int Num,String Name_Dan,String Name_peo,String Date)
{

    int b=0;
    conn=ut.getConn();
    ps=null;
    sql="update Ku_c set id=?,name_C=?,Xing_hao=?,Gui=?,num=?,name_Dan=?,name_peo=?,date=? where name=?";
    try {
         ps=conn.prepareStatement(sql);
         ps.setInt(1,Id);
         ps.setString(2,Name_C);
         ps.setString(3,Xing);
         ps.setString(4,gui);
         ps.setInt(5,Num);
         ps.setString(6,Name_Dan);        
         ps.setString(7,Name_peo);
         ps.setString(8,Date );
         ps.setString(9,Name );
         
         int a=ps.executeUpdate();
         if(a>0) {
             b++;
             System.out.println("修改成功");
             
         }
         else {
             System.out.println("修改失敗");
         }
    }catch(Exception e) {
        e.printStackTrace();
    }
    try {
         if(ps!=null)ps.close();
         if(conn!=null)conn.close();
     }catch(Exception e2) {
         e2.printStackTrace();
     }
    return b;
    
}
public static int delete(String A) {
    int b=0;
    conn=ut.getConn();
    ps=null;
    sql="delete from Ku_c where name=?";
    
    try {
        ps=conn.prepareStatement(sql);
        ps.setString(1,A );
        int a=ps.executeUpdate();
         if(a>0) {
             b++;
             System.out.println("刪除成功");
             
         }
         else {
             System.out.println("刪除失敗");
         }
    }catch(Exception e) {
        e.printStackTrace();
    }
    try {
         if(ps!=null)ps.close();
         if(conn!=null)conn.close();
     }catch(Exception e2) {
         e2.printStackTrace();
     }
    return b;
    
}
public static void find_name(String a) {
    conn=ut.getConn();
    ps=null;
    ResultSet rs=null;
    sql="select * from Ku_c where name=?";
    try {
        ps=conn.prepareStatement(sql);
        ps.setString(1, a);
        rs=ps.executeQuery();
        if(rs.next()) {
             id = rs.getInt("id");
             name = rs.getString("name");
             name_C = rs.getString("name_C");
             Xing_hao = rs.getString("Xing_hao");
             Gui = rs.getString("Gui");
             num = rs.getInt("num");
             create_date=rs.getDate("create_date");
             name_Dan = rs.getString("name_Dan");
             name_peo = rs.getString("name_peo");
             date = rs.getString("date");
             
             System.out.println(name+id+name_C+Xing_hao+Gui+num+create_date+name_Dan+name_peo+date);
        }
    }catch(SQLException e) {
        e.printStackTrace();
    }finally {
        try {
             if(ps!=null)ps.close();
             if(conn!=null)conn.close();
         }catch(Exception e2) {
             e2.printStackTrace();
         }
    }
}
public static void find_date(String a) {
    conn=ut.getConn();
    ps=null;
    ResultSet rs=null;
    sql="select * from Ku_c where date=?";
    try {
        ps=conn.prepareStatement(sql);
        ps.setString(1, a);
        rs=ps.executeQuery();
        if(rs.next()) {
             id = rs.getInt("id");
             name = rs.getString("name");
             name_C = rs.getString("name_C");
             Xing_hao = rs.getString("Xing_hao");
             Gui = rs.getString("Gui");
             num = rs.getInt("num");
             create_date=rs.getDate("create_date");
             name_Dan = rs.getString("name_Dan");
             name_peo = rs.getString("name_peo");
             System.out.println(name+id+name_C+Xing_hao+Gui+num+create_date+name_Dan+name_peo+date);
        }
    }catch(SQLException e) {
        e.printStackTrace();
    }finally {
        try {
             if(ps!=null)ps.close();
             if(conn!=null)conn.close();
         }catch(Exception e2) {
             e2.printStackTrace();
         }
    }
}
public static void main(String[] args) {

    //System.out.println("請輸入要刪除商品");
    System.out.println("請輸入查詢商品：");
    Scanner scan=new Scanner(System.in);
    String a=scan.next();
    delete(a);
    //find_name(a);
    //find_date(a);
}
}

建立zhu.jsp 主頁面

　　增add.jsp

　　addresult.jsp

　　刪 delete.jsp

　　deleteresult.jsp

　　改update.jsp