商品資訊管理系統
阿新 • • 發佈：2018-12-13
package com.hjf.dao; //對資料庫的操作 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.Product; import com.hjf.util.DBUtil; /** * 課程Dao * Dao層操作資料 * @author Zheng * */ publicclass ProductDao { /** * 新增 增 * @param course * @return */ public boolean add(Product product) { String sql = "insert into product(name, home, type, guige, num, data, time, people) values('" + product.getName() + "','" + product.getHome() + "','" + product.getType() + "','"+product.getGuige()+"','"+product.getNum()+"','"+product.getData()+"','"+product.getTime()+"','"+product.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; } /** * 刪除 * *引數 @param id * @return */ public boolean delete (int id) { String sql = "delete from product where id='" + id + "'"; 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; } /** * 修改 * @param name * @param pass */ public boolean update(Product product) { String sql = "update product set name='" + product.getName() + "', home='" + product.getHome() + "', type='" + product.getType() + "',guige='" + product.getGuige() + "',num='" + product.getNum() + "',data='" + product.getData() + "',time='" + product.getTime() + "',people='" + product.getPeople() + "' where id='" + product.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; } /** * 驗證商品名稱是否唯一 * true --- 不唯一 * @param name * @return */ public boolean name(String name) { boolean flag = false; String sql = "select name from product 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; } /** * 通過ID得到類 * @param id * @return */ public Product getProductById(int id) { String sql = "select * from product where id ='" + id + "'"; Connection conn = DBUtil.getConn(); Statement state = null; ResultSet rs = null; Product product = null; try { state = conn.createStatement(); rs = state.executeQuery(sql); while (rs.next()) { String name = rs.getString("name"); String home = rs.getString("home"); String type = rs.getString("type"); String guige=rs.getString("guige"); String num=rs.getString("num"); String data=rs.getString("data"); String time=rs.getString("time"); String people=rs.getString("people"); product = new Product(id, name, home, type, guige, num, data, time, people); } } catch (Exception e) { e.printStackTrace(); } finally { DBUtil.close(rs, state, conn); } return product; } /** * 通過name得到Product * @param name * @return */ public Product getProductByName(String name) { String sql = "select * from product where name ='" + name + "'"; Connection conn = DBUtil.getConn(); Statement state = null; ResultSet rs = null; Product product = null; try { state = conn.createStatement(); rs = state.executeQuery(sql); while (rs.next()) { int id = rs.getInt("id"); String home = rs.getString("home"); String type = rs.getString("type"); String guige = rs.getString("guige"); String num=rs.getString("num"); String data=rs.getString("data"); String time=rs.getString("time"); String people=rs.getString("people"); product = new Product(id, name, home, type, guige, num, data, time, people); } } catch (Exception e) { e.printStackTrace(); } finally { DBUtil.close(rs, state, conn); } return product; } /** * 查詢 * @param name * @param home * @param type * @param guige * @param num * @return */ public List<Product> search(String name, String data) { String sql = "select * from product where "; if (name != "") { sql += "name like '%" + name + "%'"; } if (data != "") { sql += "data like '%" + data + "%'"; } List<Product> list = new ArrayList<>(); Connection conn = DBUtil.getConn(); Statement state = null; ResultSet rs = null; try { state = conn.createStatement(); rs = state.executeQuery(sql); Product bean = null; while (rs.next()) { int id = rs.getInt("id"); String name2 = rs.getString("name"); String home2=rs.getString("home"); String type2=rs.getString("type"); String guige2=rs.getString("guige"); String num2=rs.getString("num"); String data2=rs.getString("data"); String time2=rs.getString("time"); String people2=rs.getString("people"); bean = new Product(id, name2, home2, type2, guige2, num2, data2, time2, people2); list.add(bean); } } catch (SQLException e) { e.printStackTrace(); } finally { DBUtil.close(rs, state, conn); } return list; } /** * 全部資料 * @param name * @param home * @param type * @param guige * @param num * @param data * @param time * @param people * @return */ public List<Product> list() { String sql = "select * from product"; List<Product> list = new ArrayList<>(); Connection conn = DBUtil.getConn(); Statement state = null; ResultSet rs = null; try { state = conn.createStatement(); rs = state.executeQuery(sql); Product bean = null; while (rs.next()) { int id = rs.getInt("id"); String name2 = rs.getString("name"); String home2 = rs.getString("home"); String type2 = rs.getString("type"); String guige2 = rs.getString("guige"); String num2=rs.getString("num"); String data2=rs.getString("data"); String time2=rs.getString("time"); String people2=rs.getString("people"); bean = new Product(id, name2, home2, type2, guige2, num2, data2, time2, people2); list.add(bean); } } catch (SQLException e) { e.printStackTrace(); } finally { DBUtil.close(rs, state, conn); } return list; } }
dao層負責對資料庫的基本操作，進行增刪改查的操作
在資料的寫入時一定要注意順序，否則將帶來不可挽回的錯誤
package com.hjf.entity;
public class Product {
private int id;
private String name;
private String home;
private String type;
private String guige;
private String num;
private String data;
private String time;
private String people;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getHome() {
return home;
}
public void setHome(String home) {
this.home = home;
}
public String getType() {
return type;
}
public void setType(String type) {
this.type = type;
}
public String getGuige() {
return guige;
}
public void setGuige(String guige) {
this.guige = guige;
}
public String getNum() {
return num;
}
public void setNum(String num) {
this.num=num;
}
public String getData() {
return data;
}
public void setData(String data) {
this.data = data;
}
public String getTime() {
return time;
}
public void setTime(String time) {
this.time = time;
}
public String getPeople() {
return people;
}
public void setPeople(String people) {
this.people = people;
}
public Product() {}
//*構造方法
public Product(int id, String name, String home, String type,String guige,String num,String data,String time,String people) {
this.id = id;
this.home = home;
this.type = type;
this.guige = guige;
this.num=num;
this.data=data;
this.time=time;
this.people=people;
this.name=name;
}
public Product(String name, String home, String type,String guige,String num,String data,String time,String people) {
this.home = home;
this.type = type;
this.guige = guige;
this.num=num;
this.data=data;
this.time=time;
this.people=people;
this.name=name;
}
public Product(int id,String data,String name) {
this.id = id;
this.data=data;
this.name=name;
}
}
實體類Product初始化所需要的變數，併為變數增加get、set方法並設定建構函式
package com.hjf.service;
import java.util.List;
import com.hjf.dao.ProductDao;
import com.hjf.entity.Product;
/**
* CourseService
* 服務層
* @author Zheng
*
*/
public class ProductService {
ProductDao pDao = new ProductDao();
/**
* 新增
* @param course
* @return
*/
public boolean add(Product product) {
boolean f = false;
if(!pDao.name(product.getName())) {
pDao.add(product);
f = true;
}
return f;
}
/**
* 刪除
*/
public void del(int id) {
pDao.delete(id);
}
/**
* 修改
* @return
*/
public void update(Product product) {
pDao.update(product);
}
/**
* 通過ID得到一個Product
* @return
*/
public Product getProductById(int id) {
return pDao.getProductById(id);
}
/**
* 通過Name得到一個Course
* @return
*/
public Product getProductByName(String name) {
return pDao.getProductByName(name);
}
/**
* 查詢
* @return
*/
public List<Product> search(String name, String data) {
return pDao.search(name, data);
}
/**
* 全部資料
* @return
*/
public List<Product> list() {
return pDao.list();
}
}
用於服務
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.Product;
import com.hjf.service.ProductService;
@WebServlet("/ProductServlet")
public class ProductServlet extends HttpServlet {
private static final long serialVersionUID = 1L;
ProductService service = new ProductService();
/**
* 方法選擇
*/
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 ("getproductbyid".equals(method)) {
getProductById(req, resp);
} else if ("getproductbyname".equals(method)) {
getProductByName(req, resp);
} else if ("list".equals(method)) {
list(req, resp);
}
}
/**
* 新增
* @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 home = req.getParameter("home");
String type = req.getParameter("type");
String guige = req.getParameter("guige");
String num = req.getParameter("num");
String data = req.getParameter("data");
String time = req.getParameter("time");
String people = req.getParameter("people");
Product product = new Product(name, home, type, guige, num, data, time, people);
//新增後訊息顯示
if(service.add(product)) {
req.setAttribute("message", "新增成功");
req.getRequestDispatcher("add.jsp").forward(req,resp);
} else {
req.setAttribute("message", "課程名稱重複，請重新錄入");
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<Product> products = service.list();
req.setAttribute("products", products);
for(int i = 0; i < products.size(); i++) {
System.out.println(products.get(i).getName());
}
req.getRequestDispatcher("list.jsp").forward(req,resp);
}
/**
* 通過ID得到Course
* @param req
* @param resp
* @throws ServletException
*/
private void getProductById(HttpServletRequest req, HttpServletResponse resp) throws IOException, ServletException{
req.setCharacterEncoding("utf-8");
int id = Integer.parseInt(req.getParameter("id"));
Product product = service.getProductById(id);
req.setAttribute("product", product);
req.getRequestDispatcher("detail2.jsp").forward(req,resp);
}
/**
* 通過名字查詢
* 跳轉至刪除
* @param req
* @param resp
* @throws IOException
* @throws ServletException
*/
private void getProductByName(HttpServletRequest req, HttpServletResponse resp) throws IOException, ServletException{
req.setCharacterEncoding("utf-8");
String name = req.getParameter("name");
Product product = service.getProductByName(name);
if(product == null) {
req.setAttribute("message", "查無此商品！");
req.getRequestDispatcher("del.jsp").forward(req,resp);
} else {
req.setAttribute("product", product);
req.getRequestDispatcher("detail.jsp").forward(req,resp);
}
}
/**
* 刪除
* @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", "刪除成功！");
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");
String name = req.getParameter("name");
String home = req.getParameter("home");
String type = req.getParameter("type");
String guige = req.getParameter("guige");
String num = req.getParameter("num");
String data = req.getParameter("data");
String time = req.getParameter("time");
String people = req.getParameter("people");
Product product = new Product(name, home, type, guige, num, data, time, people);
service.update(product);
req.setAttribute("message", "修改成功");
req.getRequestDispatcher("ProductServlet?method=list").forward(req,resp);
}
/**
* 查詢
* @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 data = req.getParameter("data");
List<Product> products = service.search(name, data);
req.setAttribute("products", products);
req.getRequestDispatcher("searchlist.jsp").forward(req,resp);
}
}
用於對各jsp檔案之間進行跳轉等操作
package com.hjf.util;
//資料庫連線
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
/**
* 資料庫連線工具
* @author Zheng
*
*/
public class DBUtil {
public static String db_url = "jdbc:mysql://localhost:3306/test?useSSL=false";
public static String db_user = "root";
public static String db_pass = "root";
public static Connection getConn () {
Connection conn = null;
try {
Class.forName("com.mysql.jdbc.Driver");//載入驅動
conn = DriverManager.getConnection(db_url, db_user, db_pass);
} catch (Exception e) {
e.printStackTrace();
}
return conn;
}
/**
* 關閉連線
* @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();
}
}
}
}
連結資料庫的公式，很實用改個密碼、資料庫名便可以輕鬆上手
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>寫入</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;">商品資訊入庫</h1>
<a href="index.jsp">返回主頁</a>
<form action="CourseServlet?method=add" method="post" onsubmit="return check()">
<div class="a">
商品名稱<input type="text" id="name" name="name"/>
</div>
<div class="a">
生產廠家<input type="text" id="home" name="home" />
</div>
<div class="a">
型號<input type="text" id="type" name="type" />
</div>
<div class="a">
規格<input type="text" id="guige" name="guige" />
</div>
<div class="a">
數量<input type="text" id="num" name="num" />
</div>
<div class="a">
日期<input type="text" id="data" name="data" />
</div>
<div class="a">
時間<input type="text" id="time" name="time" />
</div>
<div class="a">
入庫單位及姓名<input type="text" id="people" name="people" />
</div>
<div class="a">
<button type="submit" class="b">保 存</button>
</div>
</form>
</div>
<script type="text/javascript">
function check() {
var name = document.getElementById("name");;
var home = document.getElementById("home");
var type = document.getElementById("type");
var guige = document.getElementById("guige");
var num = document.getElementById("num");
var data = document.getElementById("data");
var time = document.getElementById("time");
var people = document.getElementById("people");
//非空
if(name.value == '') {
alert('商品名稱為空');
name.focus();
return false;
}
if(home.value == '') {
alert('生產廠家為空');
home.focus();
return false;
}
if(type.value == '') {
alert('型號為空');
type.focus();
return false;
}
if(guige.value == '') {
alert('規格為空');
guige.focus();
return false;
}
if(num.value == '') {
alert('數量為空');
num.focus();
return false;
}
if(data.value == '') {
alert('日期為空');
data.focus();
return false;
}
if(time.value == '') {
alert('時間為空');
time.focus();
return false;
}
if(people.value == '') {
alert('入庫單位為空');
type.focus();
return false;
}
}
</script>
</body>
</html>
add.jsp
用於對增加的作用，可以錄入商品資訊
<%@ 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;">商品資訊刪除</h1>
<a href="index.jsp">返回主頁</a>
<form action="ProductServlet?method=getproductbyname" method="post" onsubmit="return check()">
<div class="a">
商品名稱<input type="text" id="name" name="name"/>
</div>
<div class="a">
<button type="submit" class="b">查 找</button>
</div>
</form>
</div>
<script type="text/javascript">
function check() {
var name = document.getElementById("name");;
//非空
if(name.value == '') {
alert('商品名稱為空');
name.focus();
return false;
}
}
</script>
</body>
</html>
用於刪除的jsp
del.jsp查詢並實現刪除操作
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>商品資訊刪除頁面</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;">商品資訊刪除</h1>
<a href="index.jsp">返回主頁</a>
<table class="tb">
<tr>
<td>商品名稱</td>
<td>${product.name}</td>
</tr>
<tr>
<td>生產廠家</td>
<td>${product.home}</td>
</tr>
<tr>
<td>型號</td>
<td>${product.type}</td>
</tr>
<tr>
<td>規格</td>
<td>${product.guige}</td>
</tr>
<tr>
<td>數量</td>
<td>${product.num}</td>
</tr>
<tr>
<td>日期</td>
<td>${product.data}</td>
</tr>
<tr>
<td>時間</td>
<td>${product.time}</td>
</tr>
<tr>
<td>入庫單位及姓名</td>
<td>${product.people}</td>
</tr>
</table>
<div class="a">
<a onclick="return check()" href="ProductServlet?method=del&id=${product.id}">刪 除</a>
</div>
</div>
<script type="text/javascript">
function check() {
if (confirm("真的要刪除嗎？")){
return true;
}else{
return false;
}
}
</script>
</body>
</html>
detail.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>商品資訊修改頁面</title>
<style>
.a{
margin-top: 20px;
}
.b{
font-size: 20px;
width: 160px;
color: white;
background-color: greenyellow;
}
</style>
</head>
<body>
<%
Object message = request.getAttribute("message");
if(message!=null && !"".equals(message)){
%>
<script type="text/javascript">
alert("<%=request.getAttribute("message")%>");
</script>
<%} %>
<div align="center">
<h1 style="color: red;">商品資訊修改</h1>
<a href="index.jsp">返回主頁</a>
<form action="ProductServlet?method=update" method="post" onsubmit="return check()">
<div class="a">
商品名稱<input type="text" id="name" name="name" value="${product.name}"/>
</div>
<div class="a">
生產廠家<input type="text" id="home" name="home" value="${product.home}"/>
</div>
<div class="a">
型號<input type="text" id="type" name="type" value="${product.type}"/>
</div>
<div class="a">
規格<input type="text" id="guige" name="guige" value="${product.guige}"/>
</div>
<div class="a">
數量<input type="text" id="num" name="num" value="${product.num}"/>
</div>
<div class="a">
日期<input type="text" id="data" name="data" value="${product.data}"/>
</div>
<div class="a">
時間<input type="text" id="time" name="time" value="${product.time}"/>
</div>
<div class="a">
入庫單位及姓名<input type="text" id="people" name="people" value="${product.people}"/>
</div>
<input type="hidden" id="id" name="id" value="${product.id}"/>
<div class="a">
<button type="submit" class="b">修 改</button>
</div>
</form>
</div>
<script type="text/javascript">
function check() {
var name = document.getElementById("name");;
var home = document.getElementById("home");
var type = document.getElementById("type");
var guige = document.getElementById("guige");
var num = document.getElementById("num");
var data = document.getElementById("data");
var time = document.getElementById("time");
var people = document.getElementById("people");
//非空
if(name.value == '') {
alert('商品名稱為空');
name.focus();
return false;
}
if(home.value == '') {
alert('生產廠家為空');
home.focus();
return false;
}
if(type.value == '') {
alert('型號為空');
type.focus();
return false;
}
if(guige.value == '') {
alert('規格為空');
guige.focus();
return false;
}
if(num.value == '') {
alert('數量為空');
num.focus();
return false;
}
if(data.value == '') {
alert('日期為空');
data.focus();
return false;
}
if(time.value == '') {
alert('時間為空');
time.focus();
return false;
}
if(people.value == '') {
alert('入庫單位為空');
people.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>首頁</title>
<style>
.a{
font-size: 26px;
margin-top: 20px;
}
</style>
</head>
<body>
<div align="center">
<h1 style="color: red;">商品基本資訊管理系統</h1>
<div class="a">
<a href="add.jsp">商品資訊錄入</a>
</div>
<div class="a">
<a href="ProductServlet?method=list">商品資訊修改</a>
</div>
<div class="a">
<a href="del.jsp">商品資訊刪除</a>
</div>
<div class="a">
<a href="search.jsp">商品資訊查詢</a>
</div>
</div>
</body>
</html>
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%@taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<!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;">商品資訊列表</h1>
<a href="index.jsp">返回主頁</a>
<table class="tb">
<tr>
<td>id</td>
<td>商品名稱</td>
<td>生產廠家</td>
<td>型號</td>
<td>規格</td>
<td>數量</td>
<td>日期</td>
<td>時間</td>
<td>入庫單位及姓名</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.type}</td>
<td>${item.guige}</td>
<td>${item.num}</td>
<td>${item.data}</td>
<td>${item.time}</td>
<td>${item.people}</td>
<td><a href="CourseServlet?method=getcoursebyid&id=${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>
<div align="center">
<h1 style="color: red;">商品資訊查詢</h1>
<a href="index.jsp">返回主頁</a>
<form action="ProductServlet?method=search" method="post" onsubmit="return check()">
<div class="a">
商品名稱<input type="text" id="name" name="name"/>
</div>
<div class="a">
日期<input type="text" id="data" name="data" />
</div>
<div class="a">
<button type="submit" class="b">查 詢</button>
</div>
</form>
</div>
<script type="text/javascript">
function check() {
var name = document.getElementById("name");;
var data = document.getElementById("data");
//非空
if(name.value == '' && data.value == '') {
alert('請填寫一個條件');
return false;
}
}
</script>
</body>
</html>
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <%@taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%> <!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>查詢資訊列表</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;">商品資訊列表</h1> <a href="index.jsp">返回主頁</a> <table class="tb"> <tr> <td>id</td> <td>商品名稱</td> <td>生產廠家</td> <td>型號</td> <td>規格</td> <td>數量</td> <td>日期</td> <td>時間</td> <td>入庫單位及姓名</td> </tr> <!-- forEach遍歷出adminBeans --> <c:forEach items="${products}" var="item" varStatus="status"> <tr> <td>${item.id}</td> <td>${item.name}</td> <td>${item.home}</td> <td>${item.type}</td> <td>${item.guige}</td> <td>${item.num}</td> <td>${item.data}</td> <td>${item.time}</td> <td>${item.people}</td> </tr> </c:forEach> </table> </div> </body> </html>
這樣就算只是完成了一半還差出庫入庫的單子需要列印並輸出！