仓库管理系统

package Lei;

public class Book {
    //编号
    private int id;
    //商品名称
    private String Name;
    // 生产厂家
    private String Manufacturer;
    //型号
    private String Model;
    // 规格
    private String Specifications;
    
    public int getId() {
        return id;
    }
    public void setId(int id) {
        this.id = id;
    }
    
    
    public String getName() {
        return Name;
    }
    public void setName(String name) {
        this.Name = name;
    }
    
    
    public String getManufacturer() {
        return Manufacturer;
    }
    public void setManufacturer(String Manufacturer) {
        this.Manufacturer=Manufacturer;
    }
    
    
    public String getModel() {
        return Model;
    }
    public void setModel(String Model) {
        this.Model=Model;
    }
    
    
    public String getSpecifications() {
        return Specifications;
    }
    public void setSpecifications(String Specifications) {
        this.Specifications=Specifications;
    }
    
}

package Lei;

import java.io.IOException;

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

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

/**
 * Servlet implementation class DeleteServlet
 */

@WebServlet("/DeleteServlet")

public class DeleteServlet extends HttpServlet {
    private static final long serialVersionUID = 1L;
       
    /**
     * @see HttpServlet#HttpServlet()
     */
    public DeleteServlet() {
        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
        // 获取商品id
                int id = Integer.valueOf(request.getParameter("id"));
                try {
                    // 加载数据库驱动，注册到驱动管理器
                    Class.forName("com.mysql.jdbc.Driver");
                    // 数据库连接字符串
                    String url = "jdbc:mysql://localhost:3306/db_database10?useSSL=false";
                    // 数据库用户名
                    String username = "root";
                    // 数据库密码
                    String password = "yueyue.1314";
                    // 创建Connection连接
                    Connection conn = DriverManager.getConnection(url,username,password);
                    // 删除商品信息的SQL语句
                    String sql = "delete from tb_books where id=?";
                    // 获取PreparedStatement
                    PreparedStatement ps = conn.prepareStatement(sql);
                    // 对SQL语句中的第一个占位符赋值
                    ps.setInt(1, id);
                    // 执行更新操作
                    ps.executeUpdate();
                    // 关闭PreparedStatement
                    ps.close();
                    // 关闭Connection
                    conn.close();
                } catch (Exception e) {
                    e.printStackTrace();
                } 
                // 重定向到FindServlet
                response.sendRedirect("FindServlet");
    }

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

}

package Lei;
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 java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.ArrayList;
import java.util.List;
/**
 * Servlet implementation class FindServlet
 */
@WebServlet("/FindGetOneServlet")
public class FindGetOneServlet extends HttpServlet {
    private static final long serialVersionUID = 1L;
       
    /**
     * @see HttpServlet#HttpServlet()
     */
    public FindGetOneServlet() {
        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
        int id = Integer.valueOf(request.getParameter("id"));
        try {
            // 加载数据库驱动，注册到驱动管理器
            Class.forName("com.mysql.jdbc.Driver");
            // 数据库连接字符串
            String url = "jdbc:mysql://localhost:3306/db_database10?useSSL=false";
            // 数据库用户名
            String username = "root";
            // 数据库密码
            String password = "yueyue.1314";
            // 创建Connection连接
            Connection conn = DriverManager.getConnection(url,username,password);
            // 获取Statement
//            Statement stmt = conn.createStatement();
            // 添加图书信息的SQL语句
//            String sql = "select * from tb_books where id=?";
//            PreparedStatement ps = conn.prepareStatement(sql, id);
            Statement stmt = conn.createStatement();  
            ResultSet rs = stmt.executeQuery("select * from tb_books where ID="+id);  
            // 对SQL语句中的第一个参数赋值
//            ps.setInt(1, id);
            // 执行查询
//            ResultSet rs = ps.executeQuery(sql);
            // 实例化List对象
            List<Book> list = new ArrayList<Book>();
            Book book = new Book();
            // 判断光标向后移动，并判断是否有效
            while(rs.next()){
                // 实例化Book对象
                
                // 对id属性赋值
                book.setId(rs.getInt("id"));
                // 对name属性赋值
                book.setName(rs.getString("Name"));
                // 对price属性赋值
                book.setManufacturer(rs.getString("Manufacturer"));
                // 对bookCount属性赋值
                book.setModel(rs.getString("Model"));
                // 对author属性赋值
                book.setSpecifications(rs.getString("Specifications"));
                // 将图书对象添加到集合中
//                list.add(book);
            }
            // 将图书集合放置到request之中
            request.setAttribute("book", book);
            rs.close();        // 关闭ResultSet
//            ps.close();    // 关闭Statement
            conn.close();    // 关闭Connection
        } catch (ClassNotFoundException e) {
            e.printStackTrace();
        } catch (SQLException e) {
            e.printStackTrace();
        }
        // 请求转发到book_list.jsp
        request.getRequestDispatcher("book_update.jsp").forward(request, response);
    }

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

}

package Lei;
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 java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.ArrayList;
import java.util.List;
/**
 * Servlet implementation class FindServlet
 */
@WebServlet("/FindServlet")
public class FindServlet extends HttpServlet {
    private static final long serialVersionUID = 1L;
       
    /**
     * @see HttpServlet#HttpServlet()
     */
    public FindServlet() {
        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
        try {
            // 加载数据库驱动，注册到驱动管理器
            Class.forName("com.mysql.jdbc.Driver");
            // 数据库连接字符串
            String url = "jdbc:mysql://localhost:3306/db_database10?useSSL=false";
            // 数据库用户名
            String username = "root";
            // 数据库密码
            String password = "yueyue.1314";
            // 创建Connection连接
            Connection conn = DriverManager.getConnection(url,username,password);
            // 获取Statement
            Statement stmt = conn.createStatement();
            // 添加图书信息的SQL语句
            String sql = "select * from tb_books";
            // 执行查询
            ResultSet rs = stmt.executeQuery(sql);
            // 实例化List对象
            List<Book> list = new ArrayList<Book>();
            // 判断光标向后移动，并判断是否有效
            while(rs.next()){
                // 实例化Book对象
                Book book = new Book();
                // 对id属性赋值
                book.setId(rs.getInt("id"));
                // 对name属性赋值
                book.setName(rs.getString("Name"));
                // 对price属性赋值
                book.setManufacturer(rs.getString("Manufacturer"));
                // 对bookCount属性赋值
                book.setModel(rs.getString("Model"));
                // 对author属性赋值
                book.setSpecifications(rs.getString("Specifications"));
                // 将图书对象添加到集合中
                list.add(book);
            }
            // 将图书集合放置到request之中
            request.setAttribute("list", list);
            rs.close();        // 关闭ResultSet
            stmt.close();    // 关闭Statement
            conn.close();    // 关闭Connection
        } catch (ClassNotFoundException e) {
            e.printStackTrace();
        } catch (SQLException e) {
            e.printStackTrace();
        }
        // 请求转发到book_list.jsp
        request.getRequestDispatcher("book_list.jsp").forward(request, response);
    }

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

}

package Lei;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
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;

/**
 * Servlet implementation class UpdateServlet
 */
@WebServlet("/UpdateServlet")
public class UpdateServlet extends HttpServlet {
    private static final long serialVersionUID = 1L;
       
    /**
     * @see HttpServlet#HttpServlet()
     */
    public UpdateServlet() {
        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
        response.getWriter().append("Served at: ").append(request.getContextPath());
    }

    /**
     * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
     */
    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        // TODO Auto-generated method stub
        int id = Integer.valueOf(request.getParameter("id"));
        String name=request.getParameter("Name");
        String Manufacturer=request.getParameter("Manufacturer");
        String Model=request.getParameter("Model");
        String Specifications=request.getParameter("Specifications");
//        int bookCount = Integer.valueOf(request.getParameter("bookCount")); 
        try {
            // 加载数据库驱动，注册到驱动管理器
            Class.forName("com.mysql.jdbc.Driver");
            // 数据库连接字符串
            String url = "jdbc:mysql://localhost:3306/db_database10?useSSL=false";
            // 数据库用户名
            String username = "root";
            // 数据库密码
            String password = "yueyue.1314";
            // 创建Connection连接
            Connection conn = DriverManager.getConnection(url,username,password);
            // 更新SQL语句
            String sql = "update tb_books set Name=?,Manufacturer=?,Model=?,Specifications=? where id=?";
            // 获取PreparedStatement
            PreparedStatement ps = conn.prepareStatement(sql);
            // 对SQL语句中的第一个参数赋值
//            ps.setInt(1, bookCount);
            ps.setString(1, name);
            // 对SQL语句中的第3个参数赋值
            ps.setString(2, Manufacturer);
            // 对SQL语句中的第4个参数赋值
            ps.setString(3,Model);
            // 对SQL语句中的第5个参数赋值
            ps.setString(4, Specifications);
            // 对SQL语句中的第二个参数赋值
            ps.setInt(5, id);
            // 执行更新操作
            ps.executeUpdate();
            // 关闭PreparedStatement
            ps.close();
            // 关闭Connection
            conn.close();
        } catch (Exception e) {
            e.printStackTrace();
        } 
        // 重定向到FindServlet
        response.sendRedirect("FindServlet");
    }

    }

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
    <%@page import="java.sql.Connection"%>
<%@page import="java.sql.DriverManager"%>
<%@page import="java.sql.PreparedStatement"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
</head>
<body>
<jsp:useBean id="book" class="Lei.Book"></jsp:useBean>
    <%
        try {
            request.setCharacterEncoding("UTF-8");
//             int id = Integer.valueOf(request.getParameter("id"));
            String name=request.getParameter("Name");
            String Manufacturer=request.getParameter("Manufacturer");
            String Model=request.getParameter("Model");
            String Specifications=request.getParameter("Specifications");
//             book.setId(id);
            book.setName(name);
            book.setManufacturer(Manufacturer);
            book.setModel(Model);
            book.setSpecifications(Specifications);
            // 加载数据库驱动，注册到驱动管理器
            Class.forName("com.mysql.jdbc.Driver");
            // 数据库连接字符串
            String url = "jdbc:mysql://localhost:3306/db_database10?useSSL=false";
            // 数据库用户名
            String username = "root";
            // 数据库密码
            String password = "yueyue.1314";
            // 创建Connection连接
            Connection conn = DriverManager.getConnection(url,username,password);
            // 添加图书信息的SQL语句
            String sql = "insert into tb_books(name,Manufacturer,Model,Specifications) values(?,?,?,?)";
            // 获取PreparedStatement
            PreparedStatement ps = conn.prepareStatement(sql);
            // 对SQL语句中的第1个参数赋值
//             ps.setInt(1,book.getId());
            // 对SQL语句中的第2个参数赋值
            ps.setString(1, book.getName());
            // 对SQL语句中的第3个参数赋值
            ps.setString(2, book.getManufacturer());
            // 对SQL语句中的第4个参数赋值
            ps.setString(3, book.getModel());
            // 对SQL语句中的第5个参数赋值
            ps.setString(4, book.getSpecifications());
            // 执行更新操作，返回所影响的行数
            int row = ps.executeUpdate();
            // 判断是否更新成功
            if(row > 0){
                // 更新成功输出信息
                out.print("成功添加了 " + row + "条数据！");
            }
            // 关闭PreparedStatement，释放资源
            ps.close();
            // 关闭Connection，释放资源
            conn.close();
        } catch (Exception e) {
            out.print("商品信息添加失败！");
            e.printStackTrace();
        }
    %>
    <br>
    <a href="index.jsp">返回</a>
</body>
</html>

<%@ page language="java" contentType="text/html; charset=GB18030"
    pageEncoding="GB18030"%>
    <%@page import="java.util.List"%>
<%@page import="Lei.Book"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="GB18030">
<title>所有商品信息</title>
</head>
<body>
<table>
        <tr bgcolor="white">
            <td align="center" colspan="5">
                <h2>所有商品信息</h2>
            </td>
        </tr>
        <tr align="center" bgcolor="#e1ffc1" >
            <td><b>ID</b></td>
            <td><b>商品名称</b></td>
            <td><b>生产厂家</b></td>
            <td><b>型号</b></td>
            <td><b>规格</b></td>
            <td><b>操作</b></td>
        </tr>
            <%
                // 获取图书信息集合
                    List<Book> list = (List<Book>)request.getAttribute("list");
                    // 判断集合是否有效
                    if(list == null || list.size() < 1){
                        out.print("没有数据！");
                    }else{
                        // 遍历图书集合中的数据
                        for(Book book : list){
            %>
                <tr align="center" bgcolor="white">
                    <td><%=book.getId()%></td>
                    <td><%=book.getName()%></td>
                    <td><%=book.getManufacturer()%></td>
                    <td><%=book.getModel()%></td>
                    <td><%=book.getSpecifications()%></td>
                    <td>
                    <form action="UpdateServlet" method="post" onsubmit="return check(this);">
                            <input type="hidden" name="id" value="<%=book.getId()%>">
                        </form>
                        </td>
                        <td>
                        <a href="DeleteServlet?id=<%=book.getId()%>">删除</a>
                        <a href="FindGetOneServlet?id=<%=book.getId()%>">修改</a>
                    </td>
                </tr>
            <%
                    }
                }
            %>
    </table>
        <a href="index.jsp">返回</a>
</body>
</html>

<%@ page language="java" contentType="text/html; charset=GB18030"
    pageEncoding="GB18030"%>
    <%@page import="java.util.List"%>
<%@page import="Lei.Book"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="GB18030">
<title>所有商品信息</title>
</head>
<body>
<form action="UpdateServlet" method="post" onsubmit="return check(this);">
<table>
        <tr bgcolor="white">
            <td align="center" colspan="5">
                <h2>所有商品信息</h2>
            </td>
        </tr>
        <tr align="center" bgcolor="#e1ffc1" >
            <td><b>商品名称</b></td>
            <td><b>生产厂家</b></td>
            <td><b>型号</b></td>
            <td><b>规格</b></td>
            <td><b>操作</b></td>
        </tr>
            <%
                // 获取图书信息集合
                    Book book = (Book)request.getAttribute("book");
                    
            %>
                <tr align="center" bgcolor="white">
                    
                            
                            <td><input type="hidden" name="id" value="<%=book.getId()%>">
                                <input type="text" name="Name" value="<%=book.getName()%>">
                            </td>
                            <td><input type="text" name="Manufacturer" value="<%=book.getManufacturer()%>"></td>
                            <td><input type="text" name="Model" value="<%=book.getModel()%>"></td>
                            <td><input type="text" name="Specifications" value="<%=book.getSpecifications()%>"></td>
                            <td>
                                <input type="hidden" name="id" value="<%=book.getId()%>">
                            </td>
                    
                        <td>
                        <input type="submit" value="保存">
                    </td>
                </tr>
            
    </table>
    </form>
        <a href="index.jsp">返回</a>
</body>
<script type="text/javascript">
    function check(form){
        with(form){
            if(Name.value == ""){
                alert("商品名称不能为空");
                return false;
            }
            if(Manufacturer.value == ""){
                alert("生产厂家不能为空");
                return false;
            }
            if(Model.value == ""){
                alert("型号不能为空");
                return false;
            }
            if(Specifications.value == ""){
                alert("规格不能为空");
                return false;
            }
            return true;
        }
    }
</script>
</html>

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>添加数据</title>
<script type="text/javascript">
    function check(form){
        with(form){
            if(Name.value == ""){
                alert("商品名称不能为空");
                return false;
            }
            if(Manufacturer.value == ""){
                alert("生产厂家不能为空");
                return false;
            }
            if(Model.value == ""){
                alert("型号不能为空");
                return false;
            }
            if(Specifications.value == ""){
                alert("规格不能为空");
                return false;
            }
            return true;
        }
    }
</script>
</head>
<body>
<form action="AddBook.jsp" method="post" onsubmit="return check(this);">
        <table>
            <tr>
                <td align="center" colspan="2">
                    <h2>添加库存商品信息</h2>
                    <hr>
                </td>
            </tr>
<!--             <td align="right">id：</td> -->
<!--                 <td><input type="text" name="id" /></td> -->
<!--             <tr> -->
                <td align="right">商品名称：</td>
                <td><input type="text" name="Name" /></td>
            </tr>
            <tr>
                <td align="right">生产厂家：</td>
                <td><input type="text" name="Manufacturer" /></td>
            </tr>
            <tr>
                <td align="right">商品型号：</td>
                <td><input type="text" name="Model" /></td>
            </tr>
            <tr>
                <td align="right">规　　格：</td>
                <td><input type="text" name="Specifications" /></td>
            </tr>
            <tr>
                <td align="center" colspan="2">
                    <input type="submit" value="添　加">
                </td>
            </tr>
        </table>
    </form>
    <a href="FindServlet">查看所有商品</a>
</body>
</html>