库存物资管理

创建两个表，一个用来存仓库中的物品信息，另一个用来存 出入库单据的信息，两个表分别同时操作，进行信息存储。

package service;

public class Cun {
    private int id;
    private String sname;
    private String made;
    private String xinghao;
    private String guige;
    private int number;
    private String day;
    private String shijian ;
    private String dwname;
    private String rname;
    private String caozuo;
    public int getid() {
        return id;
    }
    public void setid(int id) {
        this.id = id;
    }
    public String getsname() {
        return sname;
    }
    public void setsname(String sname) {
        this.sname = sname;
    }
    public String getmade() {
        return made;
    }
    public void setmade(String made) {
        this.made = made;
    }
    public String getxinghao() {
        return xinghao;
    }
    public void setxinghao(String xinghao) {
        this.xinghao = xinghao;
    }
    public String getguige() {
        return guige;
    }
    public void setguige(String guige) {
        this.guige = guige;
    }
    public int getnumber() {
        return number;
    }
    public void setnumber(int number) {
        this.number = number;
    }
    public String getday() {
        return day;
    }
    public void setday(String day) {
        this.day = day;
    }
    public String getshijian() {
        return shijian;
    }
    public void setshijian(String shijian) {
        this.shijian = shijian;
    }
    public String getdwname() {
        return dwname;
    }
    public void setdwname(String dwname) {
        this.dwname = dwname;
    }
    public String getrname() {
        return rname;
    }
    public void setrname(String rname) {
        this.rname = rname;
    }
    public String getcaozuo() {
        return caozuo;
    }
    public void setcaozuo(String caozuo) {
        this.caozuo=caozuo;
    }

}

package dao;

import util.DBUtil;

import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.ArrayList;
import java.util.List;

import service.Cun;

public class CunDao {
    public List<Cun> getcun(){
        List<Cun> list =new ArrayList<Cun>();
        Cun cun = null;
        Connection conn=DBUtil.getConnection();//连接数据库
        String sql="select * from kucun";
        Statement state = null;
        ResultSet rs = null;
        try {
            state = conn.createStatement();
            rs = state.executeQuery(sql);
            while(rs.next()) {
                cun = new Cun();
                cun.setid(rs.getInt("id"));
                cun.setsname(rs.getString("sname"));
                cun.setmade(rs.getString("made"));
                cun.setxinghao(rs.getString("xinghao"));
                cun.setguige(rs.getString ("guige"));
                cun.setnumber(rs.getInt("number"));
                cun.setday(rs.getString("day"));
                cun.setshijian(rs.getString("shijian"));
                cun.setdwname(rs.getString("dwname"));
                cun.setrname(rs.getString("rname"));
                cun.setcaozuo(rs.getString("caozuo"));
                list.add(cun);
            }
        }
            catch(SQLException e) {
                e.printStackTrace();
            }        
        return list;
    }
    public boolean addcun(Cun cun) {
        String sql = "insert into kucun(sname, made, xinghao,guige,number,day,shijian,dwname,rname,caozuo) values('" + cun.getsname() + "','" + cun.getmade() + "','" + cun.getxinghao() + "','"+cun.getguige()+"','"+cun.getnumber()+"','"+cun.getday()+"','"+cun.getshijian()+"','"+cun.getdwname()+"','"+cun.getrname()+"','"+cun.getcaozuo()+"')";
        //创建数据库链接
        Connection conn = DBUtil.getConnection();
        Statement state = null;        
        try {
            state = conn.createStatement();
            //state.executeUpdate(sql);
            int a= state.executeUpdate(sql);
            state.close();
            return a>0?true:false;
        } catch (Exception e) {
            e.printStackTrace();
        } 
        return false;
    }
    public List<Cun> search (String sname,String day){
        List<Cun> list =new ArrayList<Cun>();
        Cun cun= null;
        Connection conn=DBUtil.getConnection();//连接数据库
        String sql=null;
        if(sname!=null) {
        sql="select * from kucun where sname like'%"+sname+"%'";}
        if(day!=null) {
        sql="select * from kucun where day like'%"+day+"%'";
        }
        Statement state = null;
        ResultSet rs = null;
             try {
                state = conn.createStatement();
                rs = state.executeQuery(sql);
                while(rs.next()) {
                    cun = new Cun();
                    cun.setid(rs.getInt("id"));
                    cun.setsname(rs.getString("sname"));
                    cun.setmade(rs.getString("made"));
                    cun.setxinghao(rs.getString("xinghao"));
                    cun.setguige(rs.getString ("guige"));
                    cun.setnumber(rs.getInt("number"));
                    cun.setday(rs.getString("day"));
                    cun.setshijian(rs.getString("shijian"));
                    cun.setdwname(rs.getString("dwname"));
                    cun.setrname(rs.getString("rname"));
                    cun.setcaozuo(rs.getString("caozuo"));
                    list.add(cun);
                }
         
    }
             catch(SQLException e) {
                e.printStackTrace();
            }        
        return list;
    }
public List<Cun> getku(){
  List<Cun> list =new ArrayList<Cun>();
  Cun cun = null;
  Connection conn=DBUtil.getConnection();//连接数据库
  String sql="select * from cangku";
  Statement state = null;
  ResultSet rs = null;
  try {
   state = conn.createStatement();
   rs = state.executeQuery(sql);
   while(rs.next()) {
    cun = new Cun();
    cun.setid(rs.getInt("id"));
    cun.setsname(rs.getString("sname"));
    cun.setmade(rs.getString("made"));
    cun.setxinghao(rs.getString("xinghao"));
    cun.setguige(rs.getString ("guige"));
    cun.setnumber(rs.getInt("number"));
    list.add(cun);
   }
  }
   catch(SQLException e) {
    e.printStackTrace();
   }  
  return list;
 }
}

package servlet;

import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import dao.CunDao;
import service.Cun;

/**
 * Servlet implementation class AddServlet
 */
@WebServlet("/AddServlet")
public class AddServlet extends HttpServlet {
    private static final long serialVersionUID = 1L;
       
    /**
     * @see HttpServlet#HttpServlet()
     */
    public AddServlet() {
        super();
        // TODO Auto-generated constructor stub
    }

    /**
     * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
     */
    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        // TODO Auto-generated method stub
        
    }

    /**
     * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
     */
    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        // TODO Auto-generated method stub
        request.setCharacterEncoding("utf-8");
         
        response.setContentType("text/html;charset=utf-8");
        doGet(request, response);
        String sname = request.getParameter("sname");
        String made = request.getParameter("made");
        String xinghao = request.getParameter("xinghao");
        String guige = request.getParameter("guige");
        Integer number = Integer.valueOf(request.getParameter("number"));
        String day = request.getParameter("day");
        String shijian = request.getParameter("shijian");
        String dwname = request.getParameter("dwname");
        String rname = request.getParameter("rname");
        String caozuo =request.getParameter("caozuo");
        Cun cun = new Cun();
        cun.setsname(sname);
        cun.setmade(made);
        cun.setxinghao(xinghao);
        cun.setguige(guige);
        cun.setnumber(number);
        cun.setday(day);
        cun.setshijian(shijian);
        cun.setdwname(dwname);
        cun.setrname(rname);
        cun.setcaozuo(caozuo);
        CunDao cun1 = new CunDao();
        cun1.addcun(cun);
        request.getRequestDispatcher("menu.jsp").forward(request, response);
    }

}

package util;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;

public class DBUtil {
    

    // 数据库连接地址
    private static String URL = "jdbc:mysql://localhost:3306/test?useSSL=false&serverTimezone=UTC";

    // 数据库的用户名
    private static String UserName = "root";
    // 数据库的密码
    private static String Password = "123456";

    public static Connection getConnection() {
        Connection Conn=null;

        try {

            Class.forName("com.mysql.cj.jdbc.Driver"); // 加载驱动

            System.out.println("加载驱动成功!!!");
        } catch (ClassNotFoundException e) {
            // TODO: handle exception
            e.printStackTrace();
        }

        try {

            //通过DriverManager类的getConenction方法指定三个参数,连接数据库
            Conn = DriverManager.getConnection(URL, UserName, Password);
            System.out.println("连接数据库成功!!!");

            //返回连接对象
            //return Conn;

        } catch (SQLException e) {
            // TODO: handle exception
            e.printStackTrace();
        }
        return Conn;
    }
    public static void main(String[] args)throws SQLException {  //测试数据库是否连通
        Connection conn = getConnection();
        PreparedStatement pstmt = null;
        ResultSet rs = null;
        String sql ="select * from kucun";
        pstmt = conn.prepareStatement(sql);
        rs = pstmt.executeQuery();
        System.out.println(getConnection());

        while(rs.next()){
            System.out.println("空");
        }

        }


}

<%@ page language="java" contentType="text/html; charset=utf-8"
    pageEncoding="utf-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Insert title here</title>
</head>
<body>
<table align="center">
<tr>
<td>
<h2>选择操作</h2>
</td>
</tr>
</table>
<table align="center" border="1"  width="500">
<tr>
<td><a href="add.jsp">出入库信息添加</a></td>
<td><a href="search.jsp">出入库信息查询</a></td>
<td><a href="add.jsp">出入库信息删除</a></td>
</table>
</body>
</html>

<%@page import="dao.CunDao"%>
    <%@ page import="service.Cun" %>
    <%@ page import="java.util.List" %>
<%@ page language="java" contentType="text/html; charset=utf-8"
    pageEncoding="utf-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Insert title here</title>
</head>
<body>
<table align="center" border="1" width="800">
   <%
    CunDao cun1 =new CunDao();
    List<Cun> list=cun1.getcun();
     if (list == null || list.size() < 1) {  
   %>
    <tr bgcolor="white"><td colspan="5" ><h4 align="center">没有数据</h4></td></tr>
    <tr>
         <th>商品名称</th>
         <th>生产厂家</th>
         <th>型号</th>
         <th>规格</th>
         <th>数量</th>
         <th>日期</th>
         <th>时间</th>
         <th>单位名称</th>
         <th>操作人</th>
         <th>操作</th>
    </tr>
   <%
     }
     else{%>
     <tr>
         <th>商品名称</th>
         <th>生产厂家</th>
         <th>型号</th>
         <th>规格</th>
         <th>数量</th>
         <th>日期</th>
         <th>时间</th>
         <th>单位名称</th>
         <th>操作人</th>
         <th>操作</th>
    </tr>
    <%
         for (Cun cun: list) {  
   %>
   <tr>
   <td><%=cun.getsname()%></td>
   <td><%=cun.getmade()%></td>
   <td><%=cun.getxinghao()%></td>
   <td><%=cun.getguige()%></td>
   <td><%=cun.getnumber()%></td>
   <td><%=cun.getday()%></td>
   <td><%=cun.getshijian()%></td>
   <td><%=cun.getdwname()%></td>
   <td><%=cun.getrname()%></td>
   <td><%=cun.getcaozuo()%></td>
   </tr>
   <%
         }
     }
   %>
   
</table>
</body>
</html>

<%@ page language="java" contentType="text/html; charset=utf-8"
    pageEncoding="utf-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Insert title here</title>
</head>
<body>
<form action ="AddServlet" method ="post" onsubmit="check(this)">
<table align="center">
<tr>
<td>
<h2>添加单据</h2>
</td>
</tr>
</table>
<table align="center" border="1"  width="500">

    <tr>
      <td >商品名称</td>
      <td><input type ="text" name ="sname"></td>
    </tr>
    <tr>
      <td >生产厂家</td>
      <td><input type ="text" name ="made"></td>
    </tr>
     <tr>
       <td >型号</td>
       <td><input type ="text" name ="xinghao"></td>
     </tr>
     <tr>
       <td >规格</td>
       <td><input type ="text" name ="guige"></td>
     </tr>
     <tr>
       <td >数量</td>
       <td><input type ="text" name ="number"></td>
     </tr>
     <tr>
       <td >日期</td>
       <td><input type ="text" name ="day"></td>
     </tr>
     <tr>
       <td >时间</td>
       <td><input type ="text" name ="shijian"></td>
     </tr>
     <tr>
       <td >单位</td>
       <td><input type ="text" name ="dwname"></td>
     </tr>
     <tr>
       <td >操作人</td>
       <td><input type ="text" name ="rname"></td>
     </tr>
     <tr>
       <td >操作</td>
       <td><input type ="text" name ="caozuo"></td>
     </tr>
     <tr>
     <td align="center" colspan="2">
     <input type="submit" value="添加" />
     <input type="reset" value="重置" />
     </td>
     </tr>
     <tr>
     <td align="center" colspan="2"><a href="menu.jsp">返回主页</a></td>
     </tr>
</table>
<script type="text/javascript">  
    function check(form) {  
        with (form) {  
            if (name.value !== "") {  
                alert("添加成功");
            }  
        }  
    }  
</script>
</form>
</body>
</html>

<%@ page language="java" contentType="text/html; charset=utf-8"
    pageEncoding="utf-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Insert title here</title>
</head>
<body>
<form action ="search2.jsp" method ="get" >
<table align="center">
<tr>
<td>
<h2>查询单据</h2>
</td>
</tr>
</table>

<table align="center" border="1"  width="300">

    <tr>
      <td >商品名称</td>
      <td><input type ="text" name ="sname"></td>
    </tr>
    <tr>
      <td >日期</td>
      <td><input type ="text" name ="day"></td>
    </tr>
    <tr>
         <td align="center" colspan="2">
         <input type="submit" value="查询" />
         </td>
</table>
    </form>
</body>
</html>

<%@page import="dao.CunDao"%>
<%@page import="util.DBUtil"%>
    <%@ page import="service.Cun" %>
    <%@ page import="java.util.List" %>
<%@ page language="java" contentType="text/html; charset=utf-8"
    pageEncoding="utf-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Insert title here</title>
</head>
<body>
<table align="center" border="1" width="800">
<%
CunDao cun1 =new CunDao();
List<Cun> list1=cun1.search(request.getParameter("sname"),request.getParameter("day"));
 if (list1 == null || list1.size() < 1) { %> 
     <tr bgcolor="white"><td colspan="5" ><h4 align="center">没有数据</h4></td></tr>
     <%
 }
 else{
%>
 <tr>
         <th>商品名称</th>
         <th>生产厂家</th>
         <th>型号</th>
         <th>规格</th>
         <th>数量</th>
         <th>日期</th>
         <th>时间</th>
         <th>单位名称</th>
         <th>操作人</th>
         <th>操作</th>
    </tr>
    <%
    for (Cun cun: list1) {  
    %>
   <tr>
   <td><%=cun.getsname()%></td>
   <td><%=cun.getmade()%></td>
   <td><%=cun.getxinghao()%></td>
   <td><%=cun.getguige()%></td>
   <td><%=cun.getnumber()%></td>
   <td><%=cun.getday()%></td>
   <td><%=cun.getshijian()%></td>
   <td><%=cun.getdwname()%></td>
   <td><%=cun.getrname()%></td>
   <td><%=cun.getcaozuo()%></td>
   </tr>
   <%
         }
     }
   %>

</table>
</body>
</html>

<%@page import="dao.CunDao"%>
    <%@ page import="service.Cun" %>
    <%@ page import="java.util.List" %>
<%@ page language="java" contentType="text/html; charset=utf-8"
    pageEncoding="utf-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Insert title here</title>
</head>
<body>
<table align="center" border="1" width="500">
 <%
    CunDao cun1 =new CunDao();
    List<Cun> list=cun1.getku();
     if (list == null || list.size() < 1) {  
   %>
    <tr bgcolor="white"><td colspan="5" ><h4 align="center">没有数据</h4></td></tr>
    <tr>
         <th>商品名称</th>
         <th>生产厂家</th>
         <th>型号</th>
         <th>规格</th>
         <th>数量</th>
    </tr>
   <%
     }
     else{%>
     <tr>
         <th>商品名称</th>
         <th>生产厂家</th>
         <th>型号</th>
         <th>规格</th>
         <th>数量</th>
    </tr>
    <%
         for (Cun cun: list) {  
   %>
   <tr>
   <td><%=cun.getsname()%></td>
   <td><%=cun.getmade()%></td>
   <td><%=cun.getxinghao()%></td>
   <td><%=cun.getguige()%></td>
   <td><%=cun.getnumber()%></td>
   </tr>
   <%
         }
     }
   %>
   </table>
</body>
</html>