商品管理系统

package com.hjf.dao;

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 com.hjf.entity.Course;
import com.hjf.util.DBUtil;
public class CourseDao {

    /**
     * 添加
     * @param course
     * @return
     */
    public boolean add(Course course) {
        String sql = "insert into course(name, producer, model,standard,number,date,time,monad,people) values(‘" + course.getName() + "‘,‘" + course.getProducer() + "‘,‘" + course.getModel() + "‘,‘" + course.getStandard() + "‘,‘" + course.getNumber() + "‘,‘" + course.getDate() + "‘,‘" + course.getTime() + "‘,‘" + course.getMonad() + "‘,‘" + course.getPeople() + "‘)";
        Connection conn = DBUtil.getConn();
        Statement state = null;
        boolean f = false;
        int a = 0;
        
        try {
            state = conn.createStatement();
            state.executeUpdate(sql);
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            DBUtil.close(state, conn);
        }
        
        if (a > 0) {
            f = true;
        }
        return f;
    }

    /**
     * 删除
     * 
     * @param id
     * @return
     */
    public boolean delete (int id) {
        boolean f = false;
        String sql = "delete from course where id=‘" + id + "‘";
        Connection conn = DBUtil.getConn();
        Statement state = null;
        int a = 0;
        
        try {
            state = conn.createStatement();
            a = state.executeUpdate(sql);
        } catch (SQLException e) {
            e.printStackTrace();
        } finally {
            DBUtil.close(state, conn);
        }
        
        if (a > 0) {
            f = true;
        }
        return f;
    }

    /**
     * 修改
     * @param name
     * @param pass
     */
    public boolean update(Course course) {
        String sql = "update course set name=‘" + course.getName() + "‘, producer=‘" + course.getProducer() + "‘, model=‘" + course.getModel()+ "‘, standard=‘" + course.getStandard()+ "‘ where id=‘" + course.getId() + "‘";
        Connection conn = DBUtil.getConn();
        Statement state = null;
        boolean f = false;
        int a = 0;

        try {
            state = conn.createStatement();
            a = state.executeUpdate(sql);
        } catch (SQLException e) {
            e.printStackTrace();
        } finally {
            DBUtil.close(state, conn);
        }
        
        if (a > 0) {
            f = true;
        }
        return f;
    }
    
    /**
     * 验证课程名称是否唯一
     * true --- 不唯一
     * @param name
     * @return
     */
    public boolean name(String name) {
        boolean flag = false;
        String sql = "select name from course where name = ‘" + name + "‘";
        Connection conn = DBUtil.getConn();
        Statement state = null;
        ResultSet rs = null;
        
        try {
            state = conn.createStatement();
            rs = state.executeQuery(sql);
            while (rs.next()) {
                flag = true;
            }
        } catch (SQLException e) {
            e.printStackTrace();
        } finally {
            DBUtil.close(rs, state, conn);
        }
        return flag;
    }
    
    /**
     * 通过ID得到类
     * @param id
     * @return
     */
    public Course getCourseById(int id) {
        String sql = "select * from course where id =‘" + id + "‘";
        Connection conn = DBUtil.getConn();
        Statement state = null;
        ResultSet rs = null;
        Course course = null;
        
        try {
            state = conn.createStatement();
            rs = state.executeQuery(sql);
            while (rs.next()) {
                String name = rs.getString("name");
                String producer = rs.getString("producer");
                String model = rs.getString("model");
                String standard = rs.getString("standard");
                String number = rs.getString("number");
                String date = rs.getString("date");
                String time = rs.getString("time");
                String monad = rs.getString("monad");
                String people = rs.getString("people");
                course = new Course(name, producer, model,standard,number,date,time,monad,people);
            }
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            DBUtil.close(rs, state, conn);
        }
        
        return course;
    }
    
    /**
     * 通过name得到Course
     * @param name
     * @return
     */
    public Course getCourseByName(String name) {
        String sql = "select * from course where name =‘" + name + "‘";
        Connection conn = DBUtil.getConn();
        Statement state = null;
        ResultSet rs = null;
        Course course = null;
        
        try {
            state = conn.createStatement();
            rs = state.executeQuery(sql);
            while (rs.next()) {
                int id = rs.getInt("id");
                String producer = rs.getString("producer");
                String model = rs.getString("model");
                String standard = rs.getString("standard");
                String number = rs.getString("number");
                String date = rs.getString("date");
                String time = rs.getString("time");
                String monad = rs.getString("monad");
                String people = rs.getString("people");
                course = new Course(name, producer, model,standard,number,date,time,monad,people);
            }
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            DBUtil.close(rs, state, conn);
        }
        
        return course;
    }
    
    /**
     * 查找
     * @param name
     * @param producer
     * @param model
     * @return
     */
    public List<Course> search(String name, String producer, String model,String standard,String number,String date,String time,String monad,String people) {
        String sql = "select * from course where ";
        if (name != "") {
            sql += "name like ‘%" + name + "%‘";
        }
        if (producer != "") {
            sql += "producer like ‘%" + producer + "%‘";
        }
        if (model != "") {
            sql += "model like ‘%" + model + "%‘";
        }
        if (standard != "") {
            sql += "standard like ‘%" + standard + "%‘";
        }
        if (number != "") {
            sql += "standard like ‘%" + number + "%‘";
        }
        if (date != "") {
            sql += "standard like ‘%" + date + "%‘";
        }
        if (time != "") {
            sql += "standard like ‘%" + time + "%‘";
        }
        if (monad != "") {
            sql += "standard like ‘%" + monad + "%‘";
        }
        if (people != "") {
            sql += "standard like ‘%" + people + "%‘";
        }
        List<Course> list = new ArrayList<>();
        Connection conn = DBUtil.getConn();
        Statement state = null;
        ResultSet rs = null;

        try {
            state = conn.createStatement();
            rs = state.executeQuery(sql);
            Course bean = null;
            while (rs.next()) {
                int id = rs.getInt("id");
                String name2 = rs.getString("name");
                String producer2 = rs.getString("producer");
                String model2 = rs.getString("model");
                String standard2 = rs.getString("standard");
                String number2 = rs.getString("number");
                String date2 = rs.getString("date");
                String time2 = rs.getString("time");
                String monad2 = rs.getString("monad");
                String people2 = rs.getString("people");
                bean = new Course(id, name2, producer2, model2,standard2,number2,date2,time2,monad2,people2);
                list.add(bean);
            }
        } catch (SQLException e) {
            e.printStackTrace();
        } finally {
            DBUtil.close(rs, state, conn);
        }
        
        return list;
    }
    
    /**
     * 全部数据
     * @param name
     * @param producer
     * @param model
     * @return
     */
    public List<Course> list() {
        String sql = "select * from course";
        List<Course> list = new ArrayList<>();
        Connection conn = DBUtil.getConn();
        Statement state = null;
        ResultSet rs = null;

        try {
            state = conn.createStatement();
            rs = state.executeQuery(sql);
            Course bean = null;
            while (rs.next()) {
                int id = rs.getInt("id");
                String name2 = rs.getString("name");
                String producer2 = rs.getString("producer");
                String model2 = rs.getString("model");
                String standard2 = rs.getString("standard");
                String number2 = rs.getString("number");
                String date2 = rs.getString("date");
                String time2 = rs.getString("time");
                String monad2 = rs.getString("monad");
                String people2 = rs.getString("people");
                bean = new Course(id, name2, producer2, model2,standard2,number2,date2,time2,monad2,people2);
                list.add(bean);
            }
        } catch (SQLException e) {
            e.printStackTrace();
        } finally {
            DBUtil.close(rs, state, conn);
        }
        
        return list;
    }

    

}

package com.hjf.entity;

public class Course {

    private int id;
    private String name;
    private String producer;
    private String model;

     private String standard;
     private String number;
     private String date;
     private String time;
     private String monad;
     private String people;
    
    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 getProducer() {
        return producer;
    }
    public void setProducer(String producer) {
        this.producer = producer;
    }
    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 void setNumber(String number) {
        this.number = number;
    }
    public String getNumber() {
        return number;
    }
    public void setDate(String date) {
        this.date = date;
    }
    public String getDate() {
        return date;
    }
    public void setTime(String time) {
        this.time = time;
    }
    public String getTime() {
        return time;
    }
    public void setMonad(String monad) {
        this.monad = monad;
    }
    public String getMonad() {
        return monad;
    }
    public void setPeople(String people) {
        this.people = people;
    }
    public String getPeople() {
        return people;
    }
    
    
    public Course() {}
    
    public Course(int id, String name, String producer, String model,String standard,String number,String date,String time,String monad,String people) {
        this.id = id;
        this.name = name;
        this.producer = producer;
        this.model = model;
        this.standard = standard;
        this.number = number;
        this.date = date;
        this.time = time;
        this.monad = monad;
        this.people = people;
    }
    
    public Course(String name, String producer, String model,String standard,String number,String date,String time,String monad,String people) {
        this.name = name;
        this.producer = producer;
        this.model = model;
        this.standard = standard;
        this.number = number;
        this.date = date;
        this.time = time;
        this.monad = monad;
        this.people = people;
    }

}

package com.hjf.service;

import java.util.List;

import com.hjf.dao.CourseDao;
import com.hjf.entity.Course;

/**
 * CourseService
 * 服务层
 *
 */
public class CourseService {

    CourseDao cDao = new CourseDao();
    
    /**
     * 添加
     * @param course
     * @return
     */
    public boolean add(Course course) {
        boolean f = false;
        if(!cDao.name(course.getName())) {
            cDao.add(course);
            f = true;
        }
        return f;
    }
    
    /**
     * 删除
     */
    public void del(int id) {
        cDao.delete(id);
    }
    
    /**
     * 修改
     * @return 
     */
    public void update(Course course) {
        cDao.update(course);
    }
    
    /**
     * 通过ID得到一个Course
     * @return 
     */
    public Course getCourseById(int id) {
        return cDao.getCourseById(id);
    }

    /**
     * 通过Name得到一个Course
     * @return 
     */
    public Course getCourseByName(String name) {
        return cDao.getCourseByName(name);
    }
    
    /**
     * 查找
     * @return 
     */
    public List<Course> search(String name, String producer, String model,String standard,String number,String date,String time,String monad,String people) {
        return cDao.search(name, producer, model,standard,number,date,time,monad,people);
    }
    
    /**
     * 全部数据
     * @return 
     */
    public List<Course> list() {
        return cDao.list();
    }

    public boolean add1(Course course) {
        // TODO Auto-generated method stub
        boolean f = false;
        if(!cDao.name(course.getName())) {
            cDao.add(course);
            f = true;
        }
        return f;
    }
}

package com.hjf.servlet;
import java.io.IOException;
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 com.hjf.entity.Course;
import com.hjf.service.CourseService;

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

    CourseService service = new CourseService();
    
    /**
     * 方法选择
     */
    protected void service(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        req.setCharacterEncoding("utf-8");
        String method = req.getParameter("method");
        if ("add".equals(method)) {
            add(req, resp);
        } 
        else if ("del".equals(method)) {
            del(req, resp);
        } 
         else if ("update".equals(method)) {
            update(req, resp);
        } else if ("search".equals(method)) {
            search(req, resp);
        } else if ("getcoursebyid".equals(method)) {
            getCourseById(req, resp);
        } else if ("getcoursebyname".equals(method)) {
            getCourseByName(req, resp);
        } else if ("list".equals(method)) {
            list(req, resp);
        }
    }

    /**
     * 添加
     * @param req
     * @param resp
     * @throws IOException 
     * @throws ServletException 
     */
    private void add(HttpServletRequest req, HttpServletResponse resp) throws IOException, ServletException {
        req.setCharacterEncoding("utf-8");
        String name = req.getParameter("name");
        String producer = req.getParameter("producer");
        String model = req.getParameter("model");
        String standard = req.getParameter("standard");
        String number = req.getParameter("number");
        String date = req.getParameter("date");
        String time = req.getParameter("time");
        String monad = req.getParameter("monad");
        String people = req.getParameter("people");
        Course course = new Course(name, producer, model,standard,number,date,time,monad,people);
        
        //添加后消息显示
        if(service.add(course)) {
            req.setAttribute("message", "添加成功");
            req.getRequestDispatcher("add.jsp").forward(req,resp);
        } 
    }
    
    /**
     * 全部
     * @param req
     * @param resp
     * @throws ServletException 
     */
    private void list(HttpServletRequest req, HttpServletResponse resp) throws IOException, ServletException{
        req.setCharacterEncoding("utf-8");
        List<Course> courses = service.list();
        req.setAttribute("courses", courses);
        req.getRequestDispatcher("list.jsp").forward(req,resp);
    }

    /**
     * 通过ID得到Course
     * @param req
     * @param resp
     * @throws ServletException 
     */
    private void getCourseById(HttpServletRequest req, HttpServletResponse resp) throws IOException, ServletException{
        req.setCharacterEncoding("utf-8");
        int id = Integer.parseInt(req.getParameter("id"));
        Course course = service.getCourseById(id);
        req.setAttribute("course", course);
        req.getRequestDispatcher("detail2.jsp").forward(req,resp);
    }

    /**
     * 通过名字查找
     * 跳转至删除
     * @param req
     * @param resp
     * @throws IOException
     * @throws ServletException 
     */
    private void getCourseByName(HttpServletRequest req, HttpServletResponse resp) throws IOException, ServletException{
        req.setCharacterEncoding("utf-8");
        String name = req.getParameter("name");
        Course course = service.getCourseByName(name);
        if(course == null) {
            req.setAttribute("message", "查无此商品！");
            req.getRequestDispatcher("del.jsp").forward(req,resp);
        } else {
            req.setAttribute("course", course);
            req.getRequestDispatcher("detail.jsp").forward(req,resp);
        }
    }
    
    /**
     * 删除
     * @param req
     * @param resp
     * @throws IOException
     * @throws ServletException 
     */
    private void del(HttpServletRequest req, HttpServletResponse resp) throws IOException, ServletException{
        req.setCharacterEncoding("utf-8");
        int id = Integer.parseInt(req.getParameter("id"));
        service.del(id);
        req.setAttribute("message", "删除成功！");
        req.getRequestDispatcher("del.jsp").forward(req,resp);
    }
    
    /**
     * 修改
     * @param req
     * @param resp
     * @throws IOException
     * @throws ServletException 
     */
    private void update(HttpServletRequest req, HttpServletResponse resp) throws IOException, ServletException{
        req.setCharacterEncoding("utf-8");
        int id = Integer.parseInt(req.getParameter("id"));
        String name = req.getParameter("name");
        String producer = req.getParameter("producer");
        String model = req.getParameter("model");
        String standard = req.getParameter("standard");
        String number = req.getParameter("number");
        String date = req.getParameter("date");
        String time = req.getParameter("time");
        String monad = req.getParameter("monad");
        String people = req.getParameter("people");
        Course course = new Course(id,name, producer, model,standard,number,date,time,monad,people);
        
        service.update(course);
        req.setAttribute("message", "修改成功");
        req.getRequestDispatcher("CourseServlet?method=list").forward(req,resp);
    }
    
    /**
     * 查找
     * @param req
     * @param resp
     * @throws ServletException 
     */
    private void search(HttpServletRequest req, HttpServletResponse resp) throws IOException, ServletException{
        req.setCharacterEncoding("utf-8");
        String name = req.getParameter("name");
        String producer = req.getParameter("producer");
        String model = req.getParameter("model");
        String standard = req.getParameter("standard");
        String number = req.getParameter("number");
        String date = req.getParameter("date");
        String time = req.getParameter("time");
        String monad = req.getParameter("monad");
        String people = req.getParameter("people");
        List<Course> courses = service.search(name, producer,model,standard,number,date,time,monad,people);
        req.setAttribute("courses", courses);
        req.getRequestDispatcher("searchlist.jsp").forward(req,resp);
    }
    
}

package com.hjf.util;

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

/**
 * 数据库连接工具
 * 
 *
 */
public class DBUtil {
    
    public static String db_url = "jdbc:mysql://localhost:3306/mysql?useSSL=false";
    public static String db_user = "root";
    public static String db_pass = "123456";
    
    public static Connection getConn () {
        Connection conn = null;
        
        try {
            Class.forName("com.mysql.jdbc.Driver");//加载驱动
            conn = DriverManager.getConnection(db_url, db_user, db_pass);
        } catch (Exception e) {
            e.printStackTrace();
        }
        
        return conn;
    }
    
    /**
     * 关闭连接
     * @param state
     * @param 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();
            }
        }
    }


}

<%@ 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>
<style>
    .a{
        margin-top: 20px;
    }
    .b{
        font-size: 20px;
        width: 160px;
        color: white;
        background-color: greenyellow;
    }
    .tb, td {
        border: 1px solid black;
        font-size: 22px;
    }
</style>
</head>
<body>
    <div align="center">
        <h1 style="color: red;">商品信息列表</h1>
        <a href="index.jsp">返回主页</a>
        <table class="tb">
            <tr>
                <td>id</td>
                <td>商品名称</td>
                <td>生产厂家</td>
                <td>  型号   </td>
                <td>  规格   </td>
            </tr>
            <!-- forEach遍历出adminBeans -->
            <c:forEach items="${courses}" var="item" varStatus="status">
                <tr>
                    <td>${item.id}</td>
                    <td><a>${item.name}</a></td>
                    <td>${item.producer}</td>
                    <td>${item.model}</td>
                    <td>${item.standard}</td>
                </tr>
            </c:forEach>
        </table>
    </div>
</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>
<style>
    .a{
        margin-top: 20px;
    }
    .b{
        font-size: 20px;
        width: 160px;
        color: white;
        background-color: greenyellow;
    }
</style>
</head>
<body>
    <div align="center">
        <h1 style="color: red;">商品信息查询</h1>
        <a href="index.jsp">返回主页</a>
        <form action="CourseServlet?method=search" method="post" onsubmit="return check()">
            <div class="a">
                商品名称<input type="text" id="name" name="name"/>
            </div>
            <div class="a">
                生产厂家<input type="text" id="producer" name="producer" />
            </div>
            
<div class="a">
                型号      <input type="text" id="model" name="model" />
            </div>
<div class="a">
                规格      <input type="text" id="standard" name="standard" />
            </div>
            <div class="a">
                <button type="submit" class="b">查&nbsp;&nbsp;&nbsp;询</button>
            </div>
        </form>
    </div>
    <script type="text/javascript">
        function check() {
            var name = document.getElementById("name");;
            var producer = document.getElementById("producer");
            var model = document.getElementById("model");
var standard = document.getElementById("standard");
            
            //非空
            if(name.value == ‘‘ && producer.value == ‘‘ && model.value == ‘‘) {
                alert(‘请填写一个条件‘);
                return false;
            }
        }
    </script>
</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>
<style>
    .a{
        margin-top: 20px;
    }
    .b{
        font-size: 20px;
        width: 160px;
        color: white;
        background-color: greenyellow;
    }
    .tb, td {
        border: 1px solid black;
        font-size: 22px;
    }
</style>
</head>
<body>
    <%
         Object message = request.getAttribute("message");
         if(message!=null && !"".equals(message)){
     
    %>
         <script type="text/javascript">
              alert("<%=request.getAttribute("message")%>");
         </script>
    <%} %>
    <div align="center">
        <h1 style="color: red;">商品信息列表</h1>
        <a href="index.jsp">返回主页</a>
        <table class="tb">
            <tr>
                <td>id</td>
                <td>商品名称</td>
                <td>生产厂家</td>
                <td>  型号   </td>
                <td>  规格   </td>
                <td align="center" colspan="2">操作</td>
            </tr>
            <c:forEach items="${courses}" var="item">
                <tr>
                    <td>${item.id}</td>
                    <td>${item.name}</td>
                    <td>${item.producer}</td>
                    <td>${item.model}</td>
<td>${item.standard}</td>
                    <td><a href="CourseServlet?method=getcoursebyid&id=${item.id}">修改</a></td>
                </tr>
            </c:forEach>
        </table>
    </div>
</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>
<style>
    .a{
        margin-top: 20px;
    }
    .b{
        font-size: 20px;
        width: 160px;
        color: white;
        background-color: greenyellow;
    }
</style>
</head>
<body>
    <%
         Object message = request.getAttribute("message");
         if(message!=null && !"".equals(message)){
     
    %>
         <script type="text/javascript">
              alert("<%=request.getAttribute("message")%>");
         </script>
    <%} %>
    <div align="center">
        <h1 style="color: red;">商品信息修改</h1>
        <a href="index.jsp">返回主页</a>
        <form action="CourseServlet?method=update" method="post" onsubmit="return check()">
            <div class="a">
                商品名称<input type="text" id="name" name="name" value="${control.name}"/>
            </div>
            <div class="a">
                生产厂家<input type="text" id="producer" name="producer" value="${control.producer}"/>
            </div>
            <div class="a">
                型号       <input type="text" id="model" name="model" value="${control.model}"/>
            </div>
<div class="a">
                型号       <input type="text" id="standard" name="standard" value="${control.standard}"/>
            </div>
            <input type="hidden" id="id" name="id" value="${control.id}"/>
            <div class="a">
                <button type="submit" class="b">修&nbsp;&nbsp;&nbsp;改</button>
            </div>
        </form>
    </div>
    <script type="text/javascript">
        function check() {
            var name = document.getElementById("name");;
            var producer = document.getElementById("producer");
            var model = document.getElementById("model");
var standard = document.getElementById("standard");
            
            //非空
            if(name.value == ‘‘) {
                alert(‘商品名称为空‘);
                name.focus();
                return false;
            }
            if(producer.value == ‘‘) {
                alert(‘生产厂家为空‘);
                producer.focus();
                return false;
            }
            if(model.value == ‘‘) {
                alert(‘型号为空‘);
                model.focus();
                return false;
            }
                                                if(standard.value == ‘‘) {
                alert(‘规格为空‘);
                model.focus();
                return false;
            }
        }
    </script>
</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>
<style>
    .a{
        margin-top: 20px;
    }
    .b{
        font-size: 20px;
        width: 160px;
        color: white;
        background-color: greenyellow;
    }
    .tb, td {
        border: 1px solid black;
        font-size: 22px;
    }
</style>
</head>
<body>
    <div align="center">
        <h1 style="color: red;">商品信息删除</h1>
        <a href="index.jsp">返回主页</a>
        <table class="tb">
            <tr>
                <td>商品名称</td>
                <td>${control.name}</td>
            </tr>
            <tr>
                <td>生产厂家</td>
                <td>${control.producer}</td>
            </tr>
            <tr>
                <td>  型号    </td>
                <td>${control.model}</td>
            </tr>
<tr>
                <td>  规格    </td>
                <td>${control.standard}</td>
            </tr>
        </table>
        <div class="a">
            <a onclick="return check()" href="CourseServlet?method=del&id=${control.id}">删&nbsp;&nbsp;&nbsp;除</a>
        </div>
    </div>
    <script type="text/javascript">
        function check() {
            if (confirm("真的要删除吗？")){
                return true;
            }else{
                return false;
            }
        }
    </script>
</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>
<style>
    .a{
        margin-top: 20px;
    }
    .b{
        font-size: 20px;
        width: 160px;
        color: white;
        background-color: greenyellow;
    }
</style>
</head>
<body>
    <%
         Object message = request.getAttribute("message");
         if(message!=null && !"".equals(message)){
     
    %>
         <script type="text/javascript">
              alert("<%=request.getAttribute("message")%>");
         </script>
    <%} %>
    <div align="center">
        <h1 style="color: red;">商品信息删除</h1>
        <a href="index.jsp">返回主页</a>
        <form action="CourseServlet?method=getcoursebyname" method="post" onsubmit="return check()">
            <div class="a">
                商品名称<input type="text" id="name" name="name"/>
            </div>
            <div class="a">
                <button type="submit" class="b">查&nbsp;&nbsp;&nbsp;找</button>
            </div>
        </form>
    </div>
    <script type="text/javascript">
        function check() {
            var name = document.getElementById("name");;
            
            //非空
            if(name.value == ‘‘) {
                alert(‘商品名称为空‘);
                name.focus();
                return false;
            }
        }
    </script>
</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>
<style>
    .a{
        margin-top: 20px;
    }
    .b{
        font-size: 20px;
        width: 160px;
        color: white;
        background-color: greenyellow;
    }
</style>
</head>
<body>
    <%
         Object message = request.getAttribute("message");
         if(message!=null && !"".equals(message)){
     
    %>
         <script type="text/javascript">
              alert("<%=request.getAttribute("message")%>");
         </script>
    <%} %>
    <div align="center">
        <h1 style="color: red;">商品信息录入</h1>
        <a href="index.jsp">返回主页</a>
        <form action="CourseServlet?method=add" method="post" onsubmit="return check()">
            <div class="a">
                商品名称<input type="text" id="name" name="name"/>
            </div>
            <div class="a">
            生产厂家<input type="text" id="producer" name="producer" />
            </div>
            <div class="a">
                型号<input type="text" id="model" name="model" />
            </div>
            <div class="a">
                规格<input type="text" id="standard" name="standard" />
            </div>
            <div class="a">
                <button type="submit" class="b">保&nbsp;&nbsp;&nbsp;存</button>
            </div>
        </form>
    </div>
    <script type="text/javascript">
        function check() {
            var name = document.getElementById("name");;
            var producer = document.getElementById("producer");
            var model = document.getElementById("model");
            var standard = document.getElementById("standard");
            
            //非空
            if(name.value == ‘‘) {
                alert(‘商品名称为空‘);
                name.focus();
                return false;
            }
            if(producer.value == ‘‘) {
                alert(‘生产厂家为空‘);
                producer.focus();
                return false;
            }
            if(model.value == ‘‘) {
                alert(‘型号为空‘);
                model.focus();
                return false;
            }
            if(standard.value == ‘‘) {
                alert(‘规格为空‘);
                model.focus();
                return false;
            }
        }
    </script>
</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>
<style>
    .a{
        margin-top: 20px;
    }
    .b{
        font-size: 20px;
        width: 160px;
        color: white;
        background-color: greenyellow;
    }
</style>
</head>
<body>
    <div align="center">
        <h1 style="color: red;">出入库信息信息查询</h1>
        <a href="index.jsp">返回主页</a>
        <form action="CourseServlet?method=search" method="post" onsubmit="return check()">
            <div class="a">
                商品名称<input type="text" id="name" name="name"/>
            </div>
            <div class="a">
                生产厂家<input type="text" id="producer" name="producer" />
            </div>
            
<div class="a">
                型号      <input type="text" id="model" name="model" />
            </div>
<div class="a">
                规格      <input type="text" id="standard" name="standard" />
            </div>
            <div class="a">
                数量<input type="text" id="number" name="number" />
            </div>
            <div class="a">
                日期<input type="text" id="date" name="date" />
            </div>
            <div class="a">
                时间<input type="text" id="time" name="time" />
            </div>
            <div class="a">
                出库/入库单位<input type="text" id="monad" name="monad" />
            </div>
            <div class="a">
                送货/提货人<input type="text" id="people" name="people" />
            </div>
            <div class="a">
                <button type="submit" class="b">查&nbsp;&nbsp;&nbsp;询</button>
            </div>
        </form>
    </div>
    <script type="text/javascript">
        function check() {
            var name = document.getElementById("name");;
            var producer = document.getElementById("producer");
            var model = document.getElementById("model");
var standard = document.getElementById("standard");
            
            //非空
            if(name.value == ‘‘ && producer.value == ‘‘ && model.value == ‘‘) {
                alert(‘请填写一个条件‘);
                return false;
            }
        }
    </script>
</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>
<style>
    .a{
        margin-top: 20px;
    }
    .b{
        font-size: 20px;
        width: 160px;
        color: white;
        background-color: greenyellow;
    }
</style>
</head>
<body>
    <%
         Object message = request.getAttribute("message");
         if(message!=null && !"".equals(message)){
     
    %>
         <script type="text/javascript">
              alert("<%=request.getAttribute("message")%>");
         </script>
    <%} %>
    <div align="center">
        <h1 style="color: red;">商品出入库录入</h1>
        <a href="index.jsp">返回主页</a>
        <form action="CourseServlet?method=add" method="post" onsubmit="return check()">
            <div class="a">
                商品名称<input type="text" id="name" name="name"/>
            </div>
            <div class="a">
            生产厂家<input type="text" id="producer" name="producer" />
            </div>
            <div class="a">
                型号<input type="text" id="model" name="model" />
                </div>
            <div class="a">
                规格<input type="text" id="standard" name="standard" />
            </div>
            <div class="a">
                数量<input type="text" id="number" name="number" />
            </div>
            <div class="a">
                日期<input type="text" id="date" name="date" />
            </div>
            <div class="a">
                时间<input type="text" id="time" name="time" />
            </div>
            <div class="a">
                出库/入库单位<input type="text" id="monad" name="monad" />
            </div>
            <div class="a">
                送货/提货人<input type="text" id="people" name="people" />
            </div>
            <div class="a">
                <button type="submit" class="b">保&nbsp;&nbsp;&nbsp;存</button>
            </div>
        </form>
    </div>
    <script type="text/javascript">
        function check() {
            var name = document.getElementById("name");;
            var producer = document.getElementById("producer");
            var model = document.getElementById("model");
            var standard = document.getElementById("standard");
            var standard = document.getElementById("number");
            var standard = document.getElementById("date");
            var standard = document.getElementById("time");
            var standard = document.getElementById("monad");
            var standard = document.getElementById("people");
            //非空
            if(name.value == ‘‘) {
                alert(‘商品名称为空‘);
                name.focus();
                return false;
            }
            if(producer.value == ‘‘) {
                alert(‘生产厂家为空‘);
                producer.focus();
                return false;
            }
            if(model.value == ‘‘) {
                alert(‘型号为空‘);
                model.focus();
                return false;
            }
            if(standard.value == ‘‘) {
                alert(‘规格为空‘);
                model.focus();
                return false;
            }
            if(number.value == ‘‘) {
                alert(‘数量为空‘);
                model.focus();
                return false;
            }
            if(date.value == ‘‘) {
                alert(‘日期为空‘);
                model.focus();
                return false;
            }
            if(time.value == ‘‘) {
                alert(‘时间为空‘);
                model.focus();
                return false;
            }
            if(monad.value == ‘‘) {
                alert(‘入库或出库单位为空‘);
                model.focus();
                return false;
            }
            if(people.value == ‘‘) {
                alert(‘送货或提货人姓名为空‘);
                model.focus();
                return false;
            }
        }
    </script>
</body>
</html>

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>首页</title>
<style>
    .a{
        font-size: 26px;
        margin-top: 20px;
    }
</style>
</head>
<body>
    <div align="center">
        <h1 style="color: red;">商品信息管理系统</h1>
        <div class="a">
            <a href="add.jsp">商品信息录入</a>
        </div>
        <div class="a">
            <a href="CourseServlet?method=list">商品信息修改</a>
        </div>
        <div class="a">
            <a href="del.jsp">商品信息删除</a>
        </div>
        <div class="a">
            <a href="search.jsp">商品信息查询</a>
        </div>
        <div class="a">
            <a href="add1.jsp">商品出入库录入</a>
        </div>
        <div class="a">
            <a href="search1.jsp">商品出入库查询</a>
        </div>
    </div>
</body>
</html>