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  • 库存物资管理系统

    一、实验思路

    在数据库中建立两个表，flow表存放出入库的单据，Warehouse表存放商品的信息。FlowBean类和WarehouseBean类处理所用到的变量；通过FlowDao类和WarehouseDao类进行连接；通com.servlet包中的类进行增删改查的操作.

    结构及数据库表如下图所示：

                     

    二、源代码

    （1）jsp文件

    <%@ page language="java" contentType="text/html; charset=UTF-8"
      pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>登录界面</title>
</head>
<body>
<table width = "400" border ="0" height = "300" align = "center" cellpading ="0" style = "font-size:12px;color:#FFFFF;front-weight:bold">
<Tr height = "50" ><td>&nbsp;</td></Tr>
<tr>
   <td height = "200"><table width = "98%" border ="0" align = "center" cellpading = "0">
   <form name = "form1"  action = "addServlet" method = "post">
<tr>
<td>商品名称:</td><td><input type="text" name="addname" /></td>
</tr>
<tr>
<td>生产厂家：</td><td><input type="text" name="addfactory" /></td>
</tr>
<tr>
<td>型号：</td><td><input type="text" name="addmodel" /></td>
</tr>
<tr>
<td>规格：</td><td><input type="text" name="addstandard" /></td>
</tr>
<tr>
<td>数量：</td><td><input type="text" name="addnumber" /></td>
</tr>
<tr>
<td>入库单位名称：</td><td><input type="text" name="adddanwei" /></td>
</tr>
<tr>
<td>送货人姓名：</td><td><input type="text" name="addperson" /></td>
</tr>
<tr>
<td><input name = "login" type = "submit" id = "login" value = "提交" class = "button"></td>
</tr>
 </form>
 </table>
 </td>
 </tr>
</table>
</html>
    <%@ page language="java" contentType="text/html; charset=UTF-8"
      pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>登录界面</title>
</head>
<body>
<table width = "400" border ="0" height = "300" align = "center" cellpading ="0" style = "font-size:12px;color:#FFFFF;front-weight:bold">
<Tr height = "50" ><td>&nbsp;</td></Tr>
<tr>
   <td height = "200"><table width = "98%" border ="0" align = "center" cellpading = "0">
   <form name = "form1"  action = "AmendServlet" method = "post">
<tr>
<td>商品名称:</td><td><input type="text" name="Amendname" /></td>
</tr>
<tr>
<td>生产厂家：</td><td><input type="text" name="Amendfactory" /></td>
</tr>
<tr>
<td>型号：</td><td><input type="text" name="Amendmodel" /></td>
</tr>
<tr>
<td>规格：</td><td><input type="text" name="Amendstandard" /></td>
</tr>
<tr>
<td>数量：</td><td><input type="text" name="Amendnumber" /></td>
</tr>
<tr>
<td>出库单位名称：</td><td><input type="text" name="Amenddanwei" /></td>
</tr>
<tr>
<td>提货人姓名：</td><td><input type="text" name="Amendperson" /></td>
</tr>
<tr>
<td><input name = "login" type = "submit" id = "login" value = "提交" class = "button"></td>
</tr>
 </form>
 </table>
 </td>
 </tr>
</table>
</html>
    <%@ page language="java" contentType="text/html; charset=UTF-8"
      pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>登录界面</title>
</head>
<body>
<table width = "400" border ="0" height = "300" align = "center" cellpading ="0" style = "font-size:12px;color:#FFFFF;front-weight:bold">
<Tr height = "50" ><td>&nbsp;</td></Tr>
<tr>
   <td height = "200"><table width = "98%" border ="0" align = "center" cellpading = "0">
   <form name = "form2"  action = "AmendWareServlet" method = "post">
<tr>
<td>要修改商品的名称:</td><td><input type="text" name="Amendname" /></td>
</tr>
<tr>
<td>改后商品名称:</td><td><input type="text" name="amendname" /></td>
</tr>
<tr>
<td>生产厂家：</td><td><input type="text" name="amendfactory" /></td>
</tr>
<tr>
<td>型号：</td><td><input type="text" name="amendmodel" /></td>
</tr>
<tr>
<td>规格：</td><td><input type="text" name="amendstandard" /></td>
</tr>
<tr>
<td><input name = "login" type = "submit" id = "login" value = "保存" class = "button"></td>
</tr>
 </form>
 </table>
 </td>
 </tr>
    <%@ page language="java" contentType="text/html; charset=UTF-8"
      pageEncoding="UTF-8"%>
      <%@page import="java.util.List" %>
      <%@page import="com.bean.WarehouseBean" %>
      <%@page import="com.dao.WarehouseDao" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>登录界面</title>
</head>
<body>
<table width = "400" border ="0" height = "300" align = "center" cellpading ="0" style = "font-size:12px;color:#FFFFF;front-weight:bold">
<Tr height = "50" ><td>&nbsp;</td></Tr>
<tr>
   <td height = "200"><table width = "98%" border ="0" align = "center" cellpading = "0">
   <form >
  <tr>
   <td>欢迎使用本系统</td>
  </tr>
  <tr>
  <%
    request.setCharacterEncoding("UTF-8");
    String name=request.getParameter("Selectname");
    WarehouseBean c=null;
    List<WarehouseBean> beans = WarehouseDao.select(name);
    for(int i=0;i<beans.size();i++)
    {
        c=beans.get(i);
        out.println("</br>");
        out.println("商品名称="+c.getName()+",生产厂家="+c.getFactory()+",型号="+c.getModel()+",规格="+c.getStandard());
    }
  %>
  </tr>
  <tr>
  <td><a href="jiemian.jsp">返回</a></td>
  </tr>
  <tr>
  <td><a href="jieshu.jsp">结束</a></td>
  </tr>
 </form>
 </table>
 </td>
 </tr>
</table>
</body>
</html>
    <%@ page language="java" contentType="text/html; charset=UTF-8"
      pageEncoding="UTF-8"%>
      <%@page import="java.util.List" %>
      <%@page import="com.bean.WarehouseBean" %>
      <%@page import="com.bean.FlowBean" %>
      <%@page import="com.dao.WarehouseDao" %>
      <%@page import="com.dao.FlowDao" %>
      <%@page import="java.sql.Timestamp" %>
      <%@page import="java.text.SimpleDateFormat" %>
      <%@page import="java.util.Date" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>登录界面</title>
</head>
<body>
<table width = "400" border ="0" height = "300" align = "center" cellpading ="0" style = "font-size:12px;color:#FFFFF;front-weight:bold">
<Tr height = "50" ><td>&nbsp;</td></Tr>
<tr>
   <td height = "200"><table width = "98%" border ="0" align = "center" cellpading = "0">
   <form >
  <tr>
   <td>欢迎使用本系统</td>
  </tr>
  <tr>
  <%
    request.setCharacterEncoding("UTF-8");
    String time1=request.getParameter("time1");
    SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
    Date date = sdf.parse("2016-06-06 16:24:50");
    FlowBean c=null;
    int a=0;
    List<FlowBean> beans = FlowDao.select();
    a=beans.size();
    for(int i=0;i<beans.size();i++)
    {
        c=beans.get(i);
        if(c.getDate().getTime()>date.getTime())
        {out.println("</br>");
        out.println("商品名称="+c.getName()+",生产厂家="+c.getFactory()+",型号="+c.getModel()+",规格="+c.getStandard());
        }

    }

  %>
  </tr>
  <tr>
  <td><a href="jiemian.jsp">返回</a></td>
  </tr>
  <tr>
  <td><a href="jieshu.jsp">结束</a></td>
  </tr>
 </form>
 </table>
 </td>
 </tr>
</table>
</body>
</html>
    <%@ page language="java" contentType="text/html; charset=UTF-8"
      pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>登录界面</title>
</head>
<body>
<table width = "400" border ="0" height = "300" align = "center" cellpading ="0" style = "font-size:12px;color:#FFFFF;front-weight:bold">
<Tr height = "50" ><td>&nbsp;</td></Tr>
<tr>
   <td height = "200"><table width = "98%" border ="0" align = "center" cellpading = "0">
   <form name = "form1"  action = "DeleteWareServlet" method = "post">
<tr>
<td>请输入要删除的商品名称:</td><td><input type="text" name="Deletename" /></td>
</tr>
<tr>
<td><input name = "login" type = "submit" id = "login" value = "提交" class = "button"></td>
</tr>
 </form>
 </table>
 </td>
 </tr>
</table>
</html>
    <%@ page language="java" contentType="text/html; charset=UTF-8"
      pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>登录界面</title>
</head>
<body>
<table width = "400" border ="0" height = "300" align = "center" cellpading ="0" style = "font-size:12px;color:#FFFFF;front-weight:bold">
<Tr height = "50" ><td>&nbsp;</td></Tr>
<tr>
   <td height = "200"><table width = "98%" border ="0" align = "center" cellpading = "0">
   <form >
  <tr>
   <td>欢迎使用本系统</td>
  </tr>
  <tr>
   <td>请选择功能：</td>
  </tr>
    <tr>
   <td><a href="addWare.jsp">商品增加</a></td>
  </tr>
    <tr>
   <td><a href="DeleteWare.jsp">商品删除</a></td>
  </tr>
   <tr>
   <td><a href="AmendWare.jsp">商品修改</a></td>
  </tr>
     <tr>
   <td><a href="Selectware.jsp">商品查找</a></td>
  </tr>
  <tr>
   <td><a href="add.jsp">入库</a></td>
  </tr>
  <tr>
   <td><a href="Amend.jsp">出库</a></td>
  </tr>
  <tr>
  <td><a href="Select.jsp">查询</a></td>
    <%@ page language="java" contentType="text/html; charset=UTF-8"
      pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>登录界面</title>
</head>
<body>
<table width = "400" border ="0" height = "300" align = "center" cellpading ="0" style = "font-size:12px;color:#FFFFF;front-weight:bold">
<Tr height = "50" ><td>&nbsp;</td></Tr>
<tr>
   <td height = "200"><table width = "98%" border ="0" align = "center" cellpading = "0">
   <form >
  <tr>
   <td>欢迎使用本系统</td>
  </tr>
  <tr>
    <%@ page language="java" contentType="text/html; charset=UTF-8"
      pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>登录界面</title>
</head>
<body>
<table width = "400" border ="0" height = "300" align = "center" cellpading ="0" style = "font-size:12px;color:#FFFFF;front-weight:bold">
<Tr height = "50" ><td>&nbsp;</td></Tr>
<tr>
   <td height = "200"><table width = "98%" border ="0" align = "center" cellpading = "0">
   <form name = "form1"  action = "chuli1.jsp" method = "post">
<tr>
<td>请输入时间:</td><td><input type="text" name="time1" /></td>
</tr>
<tr>
<td><input name = "login" type = "submit" id = "login" value = "提交" class = "button"></td>
</tr>
 </form>
 </table>
 </td>
 </tr>
</table>
</html>
       <td>请选择功能：</td>
  </tr>
    <tr>
   <td><a href="Selectware.jsp">商品名称查询</a></td>
  </tr>
    <tr>
   <td><a href="Selectdate.jsp">出入库日期查询</a></td>
  </tr>
 </form>
 </table>
 </td>
 </tr>
</table>
</body>
</html>
    <%@ page language="java" contentType="text/html; charset=UTF-8"
      pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>登录界面</title>
</head>
<body>
<table width = "400" border ="0" height = "300" align = "center" cellpading ="0" style = "font-size:12px;color:#FFFFF;front-weight:bold">
<Tr height = "50" ><td> </td></Tr>
<tr>
   <td height = "200"><table width = "98%" border ="0" align = "center" cellpading = "0">
   <form name = "form1"  action = "addWareServlet" method = "post">
<tr>
<td>商品名称:</td><td><input type="text" name="addname" /></td>
</tr>
<tr>
<td>生产厂家：</td><td><input type="text" name="addfactory" /></td>
</tr>
<tr>
<td>型号：</td><td><input type="text" name="addmodel" /></td>
</tr>
<tr>
<td>规格：</td><td><input type="text" name="addstandard" /></td>
</tr>
<tr>
<td><input name = "login" type = "submit" id = "login" value = "提交" class = "button"></td>
</tr>
 </form>
 </table>
 </td>
 </tr>
</table>
</html>

    　　（2）Dbutil文件

    package com.util;
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/cangku001?characterEncoding=utf8&useSSL=true" ;
    public static String db_user = "root";
    public static String db_password = "wxy2724921017";

    public static Connection getConn() {
        Connection conn = null;
        try {
            Class.forName("com.mysql.jdbc.Driver");
            conn = DriverManager.getConnection(db_url, db_user, db_password);
        } catch (Exception e) {
            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();
            }
        }
    }
}

    （3）bean文件

    package com.bean;

import java.util.Date;

public class FlowBean {
    private String name;
    private String factory;
    private String model;
    private String standard;
    private int number;
    private String danwei;
    private String person;
    private Date date;
    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }
    public String getFactory() {
        return factory;
    }
    public void setFactory(String factory) {
        this.factory = factory;
    }
    public String getModel() {
        return model;
    }
    public void setModel(String model) {
        this.model = model;
    }
    public String getStandard() {
        return standard;
    }
    public void setStandard(String standard) {
        this.standard = standard;
    }
    public int getNumber() {
        return number;
    }
    public void setNumber(int number) {
        this.number = number;
    }
    public String getDanwei() {
        return danwei;
    }
    public void setDanwei(String danwei) {
        this.danwei = danwei;
    }
    public String getPerson() {
        return person;
    }
    public void setPerson(String person) {
        this.person = person;
    }
    public Date getDate() {
        return date;
    }
    public void setDate(Date date) {
        this.date = date;
    }


}
    package com.bean;

public class WarehouseBean {
    private String name;
    private String factory;
    private String model;
    private String standard;
    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }
    public String getFactory() {
        return factory;
    }
    public void setFactory(String factory) {
        this.factory = factory;
    }
    public String getModel() {
        return model;
    }
    public void setModel(String model) {
        this.model = model;
    }
    public String getStandard() {
        return standard;
    }
    public void setStandard(String standard) {
        this.standard = standard;
    }
    

}

    （4）dao文件

    package com.dao;

import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.Statement;
import java.sql.Timestamp;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import com.bean.FlowBean;
import com.bean.WarehouseBean;
import com.util.DBUtil;

public class FlowDao {
    public static int addFlow(String name,String factory,String model,String standard,int number,Timestamp date,String danwei,String person) throws Exception//增加
    {
        int count = 0;
        Connection conn = DBUtil.getConn();
        try {
            String sql="insert into flow values(?,?,?,?,?,?,?,?)";
            PreparedStatement preparedStatement=conn.prepareStatement(sql);
            preparedStatement.setString(1, name);
            preparedStatement.setString(2, factory);
            preparedStatement.setString(3, model);
            preparedStatement.setString(4, standard);
            preparedStatement.setInt(5, number);
            preparedStatement.setTimestamp(6, date);
            preparedStatement.setString(7, danwei);
            preparedStatement.setString(8, person);
            count=preparedStatement.executeUpdate();
            conn.close();
        }catch (Exception e) {
            e.printStackTrace();
        }
        return count;
    }
    public static List<FlowBean> select() {//查找
        List<FlowBean> beans = new ArrayList<FlowBean>();
        Connection conn = DBUtil.getConn();
        FlowBean adminBean=null;
        try {
            String sql="select * from Flow";
            Statement state = conn.createStatement();
            ResultSet rs = state.executeQuery(sql);
            while(rs.next()) {
                adminBean = new FlowBean();
                adminBean.setName(rs.getString("name"));
                adminBean.setFactory(rs.getString("factory"));
                adminBean.setModel(rs.getString("model"));
                adminBean.setStandard(rs.getString("standard"));
                adminBean.setNumber(rs.getInt("number"));
                adminBean.setDate(rs.getTimestamp("date"));
                adminBean.setDanwei(rs.getString("danwei"));
                adminBean.setPerson(rs.getString("person"));
                beans.add(adminBean);
            }
            conn.close();
        }catch (Exception e) {
            e.printStackTrace();
        }
        return beans;
        /*List
        
        return results;*/
    }

}
    package com.dao;
import com.util.DBUtil;

import com.bean.WarehouseBean;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.Statement;
import java.sql.Timestamp;
import java.util.ArrayList;
import java.util.List;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class WarehouseDao {
	public static int addWarehouse(String name,String factory,String model,String standard) throws Exception//增加
	{
		int count = 0;
		Connection conn = DBUtil.getConn();
		try {
			String sql="insert into Warehouse values(?,?,?,?)";
			PreparedStatement preparedStatement=conn.prepareStatement(sql);
			preparedStatement.setString(1, name);
			preparedStatement.setString(2, factory);
			preparedStatement.setString(3, model);
			preparedStatement.setString(4, standard);
			count=preparedStatement.executeUpdate();
			conn.close();
		}catch (Exception e) {
			e.printStackTrace();
		}
		return count;
	}
	public int DeleteWare(String name) throws Exception//删除
	{
		int count=0;
		Connection conn = DBUtil.getConn();
		try {
			String sql="delete from Warehouse where name=?";
			PreparedStatement preparedStatement=conn.prepareStatement(sql);
			preparedStatement.setString(1, name);
			count=preparedStatement.executeUpdate();
			System.out.println(count);
			conn.close();
		}catch (Exception e) {
			e.printStackTrace();
		}
		return count;
	}
	public static List<WarehouseBean> select(String name) {//查找
		List<WarehouseBean> beans = new ArrayList<WarehouseBean>();
		Connection conn = DBUtil.getConn();
		WarehouseBean adminBean=null;
		try {
			String sql="select * from Warehouse";
			Statement state = conn.createStatement();
			ResultSet rs = state.executeQuery(sql);
			while(rs.next()) {
				adminBean = new WarehouseBean();
				adminBean.setName(rs.getString("name"));
				adminBean.setFactory(rs.getString("factory"));
				adminBean.setModel(rs.getString("model"));
				adminBean.setStandard(rs.getString("standard"));
				beans.add(adminBean);
			}
			
		
			conn.close();
		}catch (Exception e) {
			e.printStackTrace();
		}
		List<WarehouseBean> results = new ArrayList<WarehouseBean>();
		if(name!="")
		{
			Pattern pattern = Pattern.compile(name);
			for(int i=0;i<beans.size();i++)
			{
				Matcher matcher = pattern.matcher(((WarehouseBean)beans.get(i)).getName());
				if(matcher.find()){
				     results.add(beans.get(i));
				   }
			}
		}
		return results;
	}
	public static int testUpdate1(String xiugainame,String xiuname) throws Exception//修改
	{
		int count=0;
		Connection conn = DBUtil.getConn();
		try {
			String sql="update Warehouse set name=? where name=?";
			PreparedStatement preparedStatement=conn.prepareStatement(sql);
			preparedStatement.setString(1, xiuname);
			preparedStatement.setString(2, xiugainame);
			count=preparedStatement.executeUpdate();
			System.out.println(count);
			conn.close();
		}catch (Exception e) {
			e.printStackTrace();
		}
		return count;
	}
	public static int testUpdate2(String xiugainame,String xiufactory) throws Exception//修改
	{
		int count=0;
		Connection conn = DBUtil.getConn();
		try {
			String sql="update Warehouse set factory=? where name=?";
			PreparedStatement preparedStatement=conn.prepareStatement(sql);
			preparedStatement.setString(1, xiufactory);
			preparedStatement.setString(2, xiugainame);
			count=preparedStatement.executeUpdate();
			System.out.println(count);
			conn.close();
		}catch (Exception e) {
			e.printStackTrace();
		}
		return count;
	}
	public static int testUpdate3(String xiugainame,String xiumodel) throws Exception//修改
	{
		int count=0;
		Connection conn = DBUtil.getConn();
		try {
			String sql="update Warehouse set model=? where name=?";
			PreparedStatement preparedStatement=conn.prepareStatement(sql);
			preparedStatement.setString(1, xiumodel);
			preparedStatement.setString(2, xiugainame);
			count=preparedStatement.executeUpdate();
			System.out.println(count);
			conn.close();
		}catch (Exception e) {
			e.printStackTrace();
		}
		return count;
	}
	public static int testUpdate4(String xiugainame,String xiustandard) throws Exception//修改
	{
		int count=0;
		Connection conn = DBUtil.getConn();
		try {
			String sql="update Warehouse set standard=? where name=?";
			PreparedStatement preparedStatement=conn.prepareStatement(sql);
			preparedStatement.setString(1, xiustandard);
			preparedStatement.setString(2, xiugainame);
			count=preparedStatement.executeUpdate();
			System.out.println(count);
			conn.close();
		}catch (Exception e) {
			e.printStackTrace();
		}
		return count;
	}

}

    　　（5）servlet文件

    package com.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 javax.swing.JOptionPane;
import java.sql.Timestamp;
import java.util.Date;
import com.bean.WarehouseBean;
import com.dao.WarehouseDao;
import com.util.DBUtil;
import com.dao.FlowDao;
@WebServlet("/addServlet")
public class addServlet extends HttpServlet {
	private static final long serialVersionUID = 1L;

	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		request.setCharacterEncoding("UTF-8");
		String name=request.getParameter("addname");
		String factory=request.getParameter("addfactory");
		String model=request.getParameter("addmodel");
		String standard=request.getParameter("addstandard");
		String number=request.getParameter("addnumber");
		String danwei=request.getParameter("adddanwei");
		String person=request.getParameter("addperson");
		Date date = new Date();
		Timestamp timeStamp = new Timestamp(date.getTime());
		int num = Integer.parseInt(number);
		int a=0,b=0;
		FlowDao flow=new FlowDao();
		WarehouseDao ware=new WarehouseDao();
		try {
			a=flow.addFlow(name, factory, model, standard, num, timeStamp, danwei, person);
			b=ware.addWarehouse(name, factory, model, standard);
		} catch (Exception e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		if(a!=0&&b!=0)
	    {
	    	 int res=JOptionPane.showConfirmDialog(null, "操作成功", "是否继续", JOptionPane.YES_NO_OPTION);
	    	                 if(res==JOptionPane.YES_OPTION){ 
	    	                	 request.getRequestDispatcher("jiemian.jsp").forward(request, response);   //点击“是”后执行这个代码块
	    	                }else{
	    	                      System.out.println("选择否后执行的代码");    //点击“否”后执行这个代码块
	    	                      return;
	    	                  } 
	    }
	    else
	    {
	    	JOptionPane.showMessageDialog(null, "操作错误", "请重新操作", JOptionPane.ERROR_MESSAGE);
	    	request.getRequestDispatcher("add.jsp").forward(request, response);
	    }
		

	}

	protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		// TODO Auto-generated method stub
		doGet(request, response);
	}

}

    　　

    package com.servlet;

import java.io.IOException;
import java.sql.Timestamp;
import java.util.Date;

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.swing.JOptionPane;

import com.bean.WarehouseBean;
import com.dao.WarehouseDao;
import com.util.DBUtil;
@WebServlet("/addWareServlet")
public class addWareServlet extends HttpServlet {
    private static final long serialVersionUID = 1L;

    public addWareServlet() {
        super();
        // TODO Auto-generated constructor stub
    }

    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        request.setCharacterEncoding("UTF-8");
        String name=request.getParameter("addname");
        String factory=request.getParameter("addfactory");
        String model=request.getParameter("addmodel");
        String standard=request.getParameter("addstandard");
        Date date = new Date();
        Timestamp timeStamp = new Timestamp(date.getTime());
        int n=0;
        WarehouseDao ware=new WarehouseDao();
        try {
            n=ware.addWarehouse(name, factory, model, standard);
        } catch (Exception e) {
            e.printStackTrace();
        }
        if(n!=0)
        {
             int res=JOptionPane.showConfirmDialog(null, "操作成功", "是否继续", JOptionPane.YES_NO_OPTION);
                             if(res==JOptionPane.YES_OPTION){ 
                                 request.getRequestDispatcher("jiemian.jsp").forward(request, response);   //点击“是”后执行这个代码块
                            }else{
                                  System.out.println("选择否后执行的代码");    //点击“否”后执行这个代码块
                                  return;
                              } 
        }
        else
        {
            JOptionPane.showMessageDialog(null, "操作错误", "请重新操作", JOptionPane.ERROR_MESSAGE);
            request.getRequestDispatcher("addWare.jsp").forward(request, response);
        }

    }

    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        // TODO Auto-generated method stub
        doGet(request, response);
    }

}
    package com.servlet;

import java.io.IOException;
import java.sql.Timestamp;
import java.util.Date;

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.swing.JOptionPane;

import com.dao.FlowDao;
import com.dao.WarehouseDao;


@WebServlet("/AmendServlet")
public class AmendServlet extends HttpServlet {
	private static final long serialVersionUID = 1L;
       


	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		request.setCharacterEncoding("UTF-8");
		String name=request.getParameter("Amendname");
		String factory=request.getParameter("Amendfactory");
		String model=request.getParameter("Amendmodel");
		String standard=request.getParameter("Amendstandard");
		String number=request.getParameter("Amendnumber");
		String danwei=request.getParameter("Amenddanwei");
		String person=request.getParameter("Amendperson");
		Date date = new Date();
		Timestamp timeStamp = new Timestamp(date.getTime());
		int num = Integer.parseInt(number);
		int a=0,b=0;
		FlowDao flow=new FlowDao();
		WarehouseDao ware=new WarehouseDao();
		try {
			a=flow.addFlow(name, factory, model, standard, num, timeStamp, danwei, person);
			b=ware.DeleteWare(name);
		} catch (Exception e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		if(a!=0&&b!=0)
	    {
	    	 int res=JOptionPane.showConfirmDialog(null, "操作成功", "是否继续", JOptionPane.YES_NO_OPTION);
	    	                 if(res==JOptionPane.YES_OPTION){ 
	    	                	 request.getRequestDispatcher("jiemian.jsp").forward(request, response);   //点击“是”后执行这个代码块
	    	                }else{
	    	                      System.out.println("选择否后执行的代码");    //点击“否”后执行这个代码块
	    	                      return;
	    	                  } 
	    }
	    else
	    {
	    	JOptionPane.showMessageDialog(null, "操作错误", "请重新操作", JOptionPane.ERROR_MESSAGE);
	    	request.getRequestDispatcher("Amend.jsp").forward(request, response);
	    }
	}
	protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		// TODO Auto-generated method stub
		doGet(request, response);
	}

}

    　　

    package com.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 javax.swing.JOptionPane;

import com.dao.WarehouseDao;
/**
 * Servlet implementation class AmendWareServlet
 */
@WebServlet("/AmendWareServlet")
public class AmendWareServlet extends HttpServlet {
	private static final long serialVersionUID = 1L;
       


	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		request.setCharacterEncoding("UTF-8");
		String Amendname=request.getParameter("Amendname");
		String amendname=request.getParameter("amendname");
		String amendfactory=request.getParameter("amendfactory");
		String amendmodel=request.getParameter("amendmodel");
		String amendstandard=request.getParameter("amendstandard");
		WarehouseDao admin1=new WarehouseDao();
		int a1=0,a2=0,a3=0,a4=0;
	    try {
	    a1=admin1.testUpdate1(Amendname,amendname);
	    a2=admin1.testUpdate2(Amendname,amendfactory);
	    a3=admin1.testUpdate3(Amendname,amendmodel);
	    a4=admin1.testUpdate4(Amendname,amendstandard);
	    }catch (Exception e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	    if(a1!=0&&a2!=0&&a3!=0&&a4!=0)
	    {
	    	int res=JOptionPane.showConfirmDialog(null, "操作成功", "是否继续", JOptionPane.YES_NO_OPTION);
            if(res==JOptionPane.YES_OPTION){ 
           	 request.getRequestDispatcher("jiemian.jsp").forward(request, response);   //点击“是”后执行这个代码块
           }else{
                 System.out.println("选择否后执行的代码");    //点击“否”后执行这个代码块
                 return;
             } 
	    }
	    else
	    {
	    	JOptionPane.showMessageDialog(null, "操作错误", "请重新操作", JOptionPane.ERROR_MESSAGE);
	    	request.getRequestDispatcher("AmendWare.jsp").forward(request, response);
	    }
	}

	protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		// TODO Auto-generated method stub
		doGet(request, response);
	}

}

    　　

    package com.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 javax.swing.JOptionPane;

import com.bean.WarehouseBean;
import com.dao.WarehouseDao;
import com.util.DBUtil;

@WebServlet("/DeleteWareServlet")
public class DeleteWareServlet extends HttpServlet {
	private static final long serialVersionUID = 1L;
       
	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		request.setCharacterEncoding("UTF-8");
		String name=request.getParameter("Deletename");
		int n=0;
		WarehouseDao ware=new WarehouseDao();
		try {
			n=ware.DeleteWare(name);
		} catch (Exception e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		if(n!=0)
	    {
	    	 int res=JOptionPane.showConfirmDialog(null, "操作成功", "是否继续", JOptionPane.YES_NO_OPTION);
	    	                 if(res==JOptionPane.YES_OPTION){ 
	    	                	 request.getRequestDispatcher("jiemian.jsp").forward(request, response);   //点击“是”后执行这个代码块
	    	                }else{
	    	                      System.out.println("选择否后执行的代码");    //点击“否”后执行这个代码块
	    	                      return;
	    	                  } 
	    }
	    else
	    {
	    	JOptionPane.showMessageDialog(null, "操作错误", "请重新操作", JOptionPane.ERROR_MESSAGE);
	    	request.getRequestDispatcher("DeleteWare.jsp").forward(request, response);
	    }
	}

	protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		// TODO Auto-generated method stub
		doGet(request, response);
	}

}

    三、实验截图

     主界面

    商品增加页面

    商品删除

     

    商品修改

     

    入库

    出库

    查询

    错误提示

    四、遇到的问题

    今天连接数据库时总是提示client dose not support authentication protocol requested by server;consider upgrading mysql client

    后来通过cmd黑框修改了密码的格式SET PASSWORD FOR -> 'root'@'localhost' = OLD_PASSWORD('11111');问题得到解决；

    连接数据库时出现No suitable driver found for jdbc:sql://localhost:3307/choose?useSSL=false错误。后来通过查询在数据库后面加上了

    ?characterEncoding=utf8&useSSL=true一行代码解决了此问题。

    迷失在灿烂之中 消失在万里晴空
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  • 原文地址：https://www.cnblogs.com/wxy2000/p/10117037.html
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