库存物资管理系统

1、背景资料：
　　1、有一个存放商品的仓库，每天都有商品出库和入库。
　　2、每种商品都有名称、生产厂家、型号、规格等。
　　3、出入库时必须填写出入库单据，单据包括商品名称、生产厂家、型号、
　　规格、数量、日期、时间、入库单位（或出库单位）名称、送货（或提货）人
　　姓名。
2.系统要求与功能设计
　　2.1 页面要求
　　（1）能够在 Tomcat 服务器中正确部署，并通过浏览器查看；（1 分）
　　（2）网站页面整体风格统一；
　　2.2 设计要求
　　1、设计出入库单据的录入。
　　2、实现按商品名称、出入库日期的查询。

一、商品的增删改查

　　dao层

　　与数据库连接有关的代码

package dao;

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

public class DBUtil{
    public static String db_url = "jdbc:mysql://localhost:3306/eshop?useUnicode=true&characterEncoding=UTF-8&serverTimezone=GMT";
    public static String db_user="root";
    public static String db_password="password";
    
    public static Connection getConn() {
        Connection conn=null;
        try {
            Class.forName("com.mysql.cj.jdbc.Driver");
            conn=DriverManager.getConnection(db_url, db_user, db_password);
            System.out.println("连接数据库成功");
        }catch(Exception e) {
            System.out.println("连接数据库失败");
            e.printStackTrace();
        }
        return conn;
    }
    
    public static void close(Statement state,Connection conn) {
        if(state!=null) {
            try {
                state.close();
            } catch (SQLException e) {
                e.printStackTrace();
            }
        }
        if(conn!=null) {
            try {
                conn.close();
            } catch (SQLException e) {
                e.printStackTrace();
            }
        }
    }
    
    public static void close(ResultSet rs, Statement state, Connection conn) {
        if(rs!=null) {
            try {
                rs.close();
            } catch (SQLException e) {
                e.printStackTrace();
            }
        }
        if(state!=null) {
            try {
                state.close();
            } catch (SQLException e) {
                e.printStackTrace();
            }
        }
        if(conn!=null) {
            try {
                conn.close();
            } catch (SQLException e) {
                e.printStackTrace();
            }
        }
    }
}

　　

　　entity层

　　

package entity;

public class Goods{
    private String name;
    private String changshang;
    private String xinghao;
    private String guige;
    
    public String getname() {
        return name;
    }
    public void setname(String name) {
        this.name=name;
    }
    
    public String getchangshang() {
        return changshang;
    }
    public void setchangshang(String changshang) {
        this.changshang=changshang;
    }
    
    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;
    }
}

　　

　　Servlet层

package GoodsServlet;

import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.ArrayList;
import java.util.List;

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 javax.servlet.http.HttpSession;

import dao.DBUtil;
import entity.Goods;

@SuppressWarnings("serial")
public class GoodsServlet extends HttpServlet {
    protected void service(HttpServletRequest req, HttpServletResponse resp) throws UnsupportedEncodingException{
        req.setCharacterEncoding("utf-8");
        String method = req.getParameter("method");
        String name = req.getParameter("name");
        if("insert".equals(method))
            insert(req, resp);
        else if("delete".equals(method))
            delete(req, resp);
        else if("update".equals(method))
            update(req, resp);
        else if("query".equals(method))
            query(req, resp);
    }



    private void query(HttpServletRequest req, HttpServletResponse resp) {
        try {
            req.setCharacterEncoding("UTF-8");
            HttpSession session = req.getSession();
            String name = req.getParameter("name");
            String changshang = req.getParameter("changshang");
            String xinghao = req.getParameter("xinghao");
            String guige=req.getParameter("guige");
            Connection conn = DBUtil.getConn();
            Statement st = conn.createStatement();
            List<Goods> list = new ArrayList<>();
            ResultSet rs = null;
            if(name!="" && changshang=="" && xinghao==""&&guige=="")
                rs = queryname(name, st, conn);
            else if(name=="" && changshang!="" && xinghao==""&&guige=="")
                rs = querychangshang(changshang, st, conn);
            else if(name=="" && changshang=="" && xinghao!=""&&guige=="")
                rs = queryxinghao(xinghao, st, conn);
            else if(name=="" && changshang=="" && xinghao==""&&guige!="")
                rs = queryguige(guige, st, conn);
            if(rs!=null) {
                Goods cb = null;
                while(rs.next()) {
                    cb = new Goods();
                    cb.setname(rs.getString("name"));
                    cb.setchangshang(rs.getString("changshang"));
                    cb.setxinghao(rs.getString("xinghao"));
                    cb.setguige(rs.getString("guige"));
                    list.add(cb);
                }
                session.setAttribute("list",list);
                DBUtil.close(st, conn);
                resp.sendRedirect(req.getContextPath() + "/admin/query.jsp?status=1");   
            }
            else {
                DBUtil.close(st, conn);
                resp.sendRedirect(req.getContextPath() + "/admin/query.jsp?status=0");   
            }
        } catch (UnsupportedEncodingException e) {
            e.printStackTrace();
        } catch (SQLException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
    private ResultSet querychangshang(String changshang, Statement st, Connection conn) {
        ResultSet rs = null;
        try {
            String sql = "select * from goods where changshang='"+ changshang + "'";
            rs = st.executeQuery(sql);
        } catch (SQLException e) {
            e.printStackTrace();
        }
        return rs;
    }
    private ResultSet queryxinghao(String xinghao, Statement st, Connection conn) {
        ResultSet rs = null;
        try {
            String sql = "select * from goods where xinghao='"+ xinghao + "'";
            rs = st.executeQuery(sql);
        } catch (SQLException e) {
            e.printStackTrace();
        }
        return rs;
    }
    private ResultSet queryguige(String guige, Statement st, Connection conn) {
        ResultSet rs = null;
        try {
            String sql = "select * from goods where guige='"+ guige + "'";
            rs = st.executeQuery(sql);
        } catch (SQLException e) {
            e.printStackTrace();
        }
        return rs;
    }
        
    private ResultSet queryname(String name, Statement st, Connection conn) {
        ResultSet rs = null;
        try {
            String sql = "select * from goods where name='"+ name + "'";
            rs = st.executeQuery(sql);
        } catch (SQLException e) {
            e.printStackTrace();
        }
        return rs;
    }



    @SuppressWarnings("unused")
    private void update(HttpServletRequest req, HttpServletResponse resp) {
        try {
            req.setCharacterEncoding("utf-8");
            //String name = req.getParameter("oldname");
            String newname = req.getParameter("newname");
            //String changshang = req.getParameter("oldchangshang");
            String newchangshang = req.getParameter("newchangshang");
            //String xinghao = req.getParameter("oldxinghao");
            String newxinghao=req.getParameter("newxinghao");
            //String guige=req.getParameter("oldguige");
            String newguige=req.getParameter("newguige");
            Connection conn = DBUtil.getConn();
            Statement st = conn.createStatement();
            String sql = "update goods set name='"+ newname + "',changshang='" + newchangshang + "',xinghao='" + newxinghao + "',guige='" + newguige+"'"/*+"where name='"+ name + "' and changshang='" + changshang + "' and xinghao='" + xinghao + "' and guige='"+"'"*/;
            st.executeUpdate(sql);
            resp.sendRedirect(req.getContextPath() + "/goods.jsp");   
            DBUtil.close(st, conn); 
        } catch (UnsupportedEncodingException e) {
            e.printStackTrace();
        } catch (SQLException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }



    private void delete(HttpServletRequest req, HttpServletResponse resp) {
        try {
            req.setCharacterEncoding("UTF-8");
            String name = req.getParameter("name");
            Connection conn = DBUtil.getConn();
            Statement st = conn.createStatement();
            String sql = "select * from goods where name='"+ name + "'";
            ResultSet rs = st.executeQuery(sql);
            if(rs.next()) {
                sql = "delete from goods where name = '" + name + "'";
                st.executeUpdate(sql);
                resp.sendRedirect(req.getContextPath() + "/goods.jsp");
                DBUtil.close(st, conn);
                }
        } catch (UnsupportedEncodingException e) {
            e.printStackTrace();
        } catch (SQLException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
        
    }

    private void insert(HttpServletRequest req, HttpServletResponse resp) {
        try {
            req.setCharacterEncoding("utf-8");
            String name=req.getParameter("name");
            String changshang=req.getParameter("changshang");
            String xinghao=req.getParameter("xinghao");
            String guige=req.getParameter("guige");
            Connection conn = DBUtil.getConn();
            Statement st = conn.createStatement();
            String sql="insert into goods values('"+name+"','"+changshang+"','"+xinghao+"','"+guige+"')";
            st.executeUpdate(sql);
            resp.sendRedirect(req.getContextPath() + "/goods.jsp");
            DBUtil.close(st, conn);
        }catch(Exception e) {
            e.getStackTrace();
        }
        
    }
    
    
    
}

　页面

　　主页面

<%@ 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>
<ul class="topmenu">
    <li><a href="insert.jsp" target="iframe_a">增加</a></li>
    <li><a href="delete.jsp" target="iframe_a">删除</a></li>
    <li><a href="modify.jsp" target="iframe_a">修改</a></li>
    <li><a href="Query.jsp" target="iframe_a">查询</a></li>
</ul>
</body>
</html>

增

<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>添加页面</title>
</head>
<body>
<form action="${pageContext.request.contextPath}/admin/Manage?method=insert" method="post" id="insert">
<table border='1'>
<tr align='center'>
    <td colspan='2'><h2>添加商品</h2></td>
</tr>
<tr align='center'>
    <td>商品名称</td>
    <td><input name="name" type="text" id="name" placeholder="商品名称" value="" /></td>
</tr>
<tr align='center'>
    <td>生产厂商</td>
    <td><input name="changshang" type="text" id="changshang" placeholder="生产厂商" value="" /></td>
</tr>
<tr align='center'>
    <td>型号</td>
    <td><input name="xinghao" type="text" id="xinghao" placeholder="型号" value="" /></td>
</tr>
<tr align='center'>
    <td>规格</td>
    <td><input name="guige" type="text" id="guige" placeholder="规格" value="" /></td>
</tr>
<tr align='center'>
    <td colspan='2'><input type="submit"value="保存" /></td>
</tr>
</table>
    
</form>
</body>
</html>

删

<%@ 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="${pageContext.request.contextPath}/admin/Manage?method=delete" method="post" id="delete">

<table border='1'>
<tr align='center'>
    <td colspan='2'><h2>删除商品</h2></td>
</tr>
<tr align='center'>
    <td>商品名称</td>
    <td><input name="name" type="text" id="name" placeholder="商品名称" value="" /></td>
</tr>
<tr align='center'>
    <td>生产厂商</td>
    <td><input name="changshang" type="text" id="changshang" placeholder="生产厂商" value="" /></td>
</tr>
<tr align='center'>
    <td>型号</td>
    <td><input name="xinghao" type="text" id="xinghao" placeholder="型号" value="" /></td>
</tr>
<tr align='center'>
    <td>规格</td>
    <td><input name="guige" type="text" id="guige" placeholder="规格" value="" /></td>
</tr>
<tr align='center'>
    <td colspan='2'><input type="submit"value="删除" /></td>
</tr>
</table>

</form>

</body>
</html>

改

<%@ 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="${pageContext.request.contextPath}/admin/Manage?method=update" method="post" id="insert">
<table border='1'>
<tr align='center'>
    <td colspan='3'><h2>修改</h2></td>
</tr>
<tr align='center'>
    <td>商品名称</td>

    <td><input name="newname" type="text" id="newname" placeholder="新的商品名称" value="" /></td>
</tr>
<tr align='center'>
    <td>生产厂商</td>

    <td><input name="newchangshang" type="text" id="newchangshang" placeholder="新的生产厂商" value="" /></td>
</tr>
<tr align='center'>
    <td>型号</td>

    <td><input name="newxinghao" type="text" id="newxinghao" placeholder="新的型号" value="" /></td>
</tr>
<tr align='center'>
    <td>规格</td>

    <td><input name="newguige" type="text" id="neqguige" placeholder="新的规格" value="" /></td>
</tr>
<tr align='center'>
    <td colspan='3'><input type="submit"value="修改" /></td>
</tr>
</table>
</form>

</body>
</html>

查

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
    <%@ page import="java.sql.*,java.util.*,entity.Goods" %>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
</head>
<body>
<form action="${pageContext.request.contextPath}/admin/Manage?method=query" method="post" id="insert">
<table border='1'>
<tr align='center'>
    <td colspan='2'><h2>查询</h2></td>
</tr>
<tr align='center'>
    <td>商品名称</td>
    <td><input name="name" type="text" id="name" placeholder="商品名称" value="" /></td>
</tr>
<tr align='center'>
    <td>生产厂商</td>
    <td><input name="changshang" type="text" id="changshang" placeholder="生产厂商" value="" /></td>
</tr>
<tr align='center'>
    <td>型号</td>
    <td><input name="xinghao" type="text" id="xinghao" placeholder="型号" value="" /></td>
</tr>
<tr align='center'>
    <td>规格</td>
    <td><input name="guige" type="text" id="guige" placeholder="规格" value="" /></td>
</tr>
<tr align='center'>
    <td colspan='2'><input type="submit" value="查询"/></td>
</tr>
</table>
<c:if test="${param.status.equals('0')}">
<br/><br/><br/>
    <div>商品信息不存在！</div>
</c:if>
<c:if test="${param.status.equals('1')}">
    <br/><br/><br/>
<table border='1'>
    <tr>
    <td>商品名称</td>
    <td>生产厂商</td>
    <td>型号</td>
    <td>规格</td>
    </tr>
    <%List<Goods> l = (List<Goods>)session.getAttribute("list");
    for(int i=0;i<l.size();i++){%>
    <tr>
    <td><%=l.get(i).getname()%></td>
    <td><%=l.get(i).getchangshang()%></td>
    <td><%=l.get(i).getxinghao()%></td>
    <td><%=l.get(i).getguige()%></td>
    <%}%>
    </tr>
</table>
</c:if>
</form>

</body>
</html>

二，出入库

　　entity层

package entity;

public class Inout {
    private String name;
    private String changshang;
    private String xinghao;
    private String guige;
    private String date;
    private String quliaty;
    private String time;
    private String danwei;
    private String peoplename;
    
    public String getname() {
        return name;
    }
    public void setname(String name) {
        this.name=name;
    }
    
    public String getchangshang() {
        return changshang;
    }
    public void setchangshang(String changshang) {
        this.changshang=changshang;
    }
    
    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 String getdate() {
        return date;
    }
    public void setdate(String date) {
        this.date=date;
    }
    
    public String getquliaty() {
        return quliaty;
    }
    
    public void getquliaty(String quliaty) {
        this.quliaty=quliaty;
    }
    
    public String gettime() {
        return time;
    }
    public void settime(String time) {
        this.time=time;
    }
    
    public String getdanwei() {
        return danwei;
    }
    public void setdanwei(String danwei) {
        this.danwei=danwei;
    }
    
    public String getpeoplename() {
        return peoplename;
    }
    public void setpeoplename(String peoplename) {
        this.peoplename=peoplename;
    }
    
}

Servelet层

package GoodsServlet;

import java.io.UnsupportedEncodingException;
import java.sql.Connection;
import java.sql.Statement;

import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import dao.DBUtil;


@SuppressWarnings("serial")
@WebServlet("/Input")
public class Input extends HttpServlet {
    protected void service(HttpServletRequest req, HttpServletResponse resp) throws UnsupportedEncodingException{
        req.setCharacterEncoding("utf-8");
        String method = req.getParameter("method");
        if("insert".equals(method))
            insert(req, resp);
        else if("query".equals(method))
            query(req, resp);
    }

    @SuppressWarnings("unused")
    private void insert(HttpServletRequest req, HttpServletResponse resp) {
        try {
            req.setCharacterEncoding("utf-8");
            String name=req.getParameter("name");
            String changshang=req.getParameter("changshang");
            String xinghao=req.getParameter("xinghao");
            String guige=req.getParameter("guige");
            String date=req.getParameter("date");
            String quality =req.getParameter("quality");
            String time=req.getParameter("time");
            String danwei=req.getParameter("danwei");
            String peoplename=req.getParameter("peoplename");
            Connection conn = DBUtil.getConn();
            Statement st = conn.createStatement();
            String sql="insert into inout values('"+name+"','"+changshang+"','"+xinghao+"','"+guige+"','"+date+"','"+quality+"','"+time+"','"+danwei+"','"+peoplename+"')";
            st.executeUpdate(sql);
            resp.sendRedirect(req.getContextPath() + "/inout.jsp");
            DBUtil.close(st, conn);
        }catch(Exception e) {
            e.getStackTrace();
        }
        
    }

    private void query(HttpServletRequest req, HttpServletResponse resp) {
        // TODO 自动生成的方法存根
        
    }

}

页面

主页面

<%@ 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>
<ul class="topmenu">
    <li><a href="insert1.jsp" >增加</a></li>
    <li><a href="Query.jsp" >查询</a></li>
    </ul>
</body>
</html>

增

<%@ 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="${pageContext.request.contextPath}/admin/Manage1?method=insert" method="post" id="insert">
<table border='1'>
<tr align='center'>
    <td colspan='2'><h2>添加商品</h2></td>
</tr>
<tr align='center'>
    <td>商品名称</td>
    <td><input name="name" type="text" id="name" placeholder="商品名称" value="" /></td>
</tr>
<tr align='center'>
    <td>生产厂商</td>
    <td><input name="changshang" type="text" id="changshang" placeholder="生产厂商" value="" /></td>
</tr>
<tr align='center'>
    <td>型号</td>
    <td><input name="xinghao" type="text" id="xinghao" placeholder="型号" value="" /></td>
</tr>
<tr align='center'>
    <td>规格</td>
    <td><input name="guige" type="text" id="guige" placeholder="规格" value="" /></td>
</tr>
<tr align='center'>
    <td>日期</td>
    <td><input name="time" type="text" id="time" placeholder="日期" value="" /></td>
</tr>
<tr align='center'>
    <td>数量</td>
    <td><input name="quality" type="text" id="quality" placeholder="数量" value="" /></td>
</tr>
<tr align='center'>
    <td>时间</td>
    <td><input name="time" type="text" id="time" placeholder="数量" value="" /></td>
</tr>
<tr align='center'>
    <td>单位</td>
    <td><input name="danwei" type="text" id="danwei" placeholder="单位" value="" /></td>
</tr>
<tr align='center'>
    <td>送提货人姓名</td>
    <td><input name="peoplename" type="text" id="peoplename" placeholder="送提货人姓名" value="" /></td>
</tr>
<tr align='center'>
    <td colspan='2'><input type="submit"value="保存" /></td>
</tr>
</table>
    
</form>
</body>
</html>