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如何利用开源代码做网站,引擎搜索技巧,天津专业的网站建设公司,平面广告设计素材网阿华代码，不是逆风，就是我疯你们的点赞收藏是我前进最大的动力！！ 希望本文内容能够帮助到你！！ 目录一：项目实现准备 1：需求 （1）登录 2：准备…

阿华代码，不是逆风，就是我疯

你们的点赞收藏是我前进最大的动力！！

希望本文内容能够帮助到你！！

一：项目实现准备

1：需求

（1）登录

2：准备工作

二：约定前后端交互接口

1：需求分析

（1）账号密码校验接⼝

（2）图书列表

2：接口定义

（1）登录接⼝

（2）图书列表

3：字段说明

三：服务器代码实现

1：创建图书类BookInfo

2：创建UserController

3：创建模拟（dao）包

四：完善前端代码

1：添加登录处理逻辑

2：删除代码

3：完善获取图书方法

五：测试

一：项目实现准备

1：需求

（1）登录

⽤⼾输⼊账号,密码完成登录功能（2）列表展⽰

展⽰图书

2：准备工作

放入前端代码，注：代码顺序如下，js，css，picture自行准备

<!DOCTYPE html>
<html lang="en"><head><meta charset="UTF-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><title>添加图书</title><link rel="stylesheet" href="css/bootstrap.min.css"><link rel="stylesheet" href="css/add.css"></head><body><div class="container"><div class="form-inline"><h2 style="text-align: left; margin-left: 10px;"><svg xmlns="http://www.w3.org/2000/svg" width="40"fill="#17a2b8" class="bi bi-book-half" viewBox="0 0 16 16"><pathd="M8.5 2.687c.654-.689 1.782-.886 3.112-.752 1.234.124 2.503.523 3.388.893v9.923c-.918-.35-2.107-.692-3.287-.81-1.094-.111-2.278-.039-3.213.492V2.687zM8 1.783C7.015.936 5.587.81 4.287.94c-1.514.153-3.042.672-3.994 1.105A.5.5 0 0 0 0 2.5v11a.5.5 0 0 0 .707.455c.882-.4 2.303-.881 3.68-1.02 1.409-.142 2.59.087 3.223.877a.5.5 0 0 0 .78 0c.633-.79 1.814-1.019 3.222-.877 1.378.139 2.8.62 3.681 1.02A.5.5 0 0 0 16 13.5v-11a.5.5 0 0 0-.293-.455c-.952-.433-2.48-.952-3.994-1.105C10.413.809 8.985.936 8 1.783z" /></svg><span>添加图书</span></h2></div><form id="addBook"><div class="form-group"><label for="bookName">图书名称:</label><input type="text" class="form-control" placeholder="请输入图书名称" id="bookName" name="bookName"></div><div class="form-group"><label for="bookAuthor">图书作者</label><input type="text" class="form-control" placeholder="请输入图书作者" id="bookAuthor" name="author" /></div><div class="form-group"><label for="bookStock">图书库存</label><input type="text" class="form-control" placeholder="请输入图书库存" id="bookStock" name="count"/></div><div class="form-group"><label for="bookPrice">图书定价：</label><input type="number" class="form-control" placeholder="请输入价格" id="bookPrice" name="price"></div><div class="form-group"><label for="bookPublisher">出版社</label><input type="text" id="bookPublisher" class="form-control" placeholder="请输入图书出版社" name="publish" /></div><div class="form-group"><label for="bookStatus">图书状态</label><select class="custom-select" id="bookStatus" name="status"><option value="1" selected>可借阅</option><option value="2">不可借阅</option></select></div><div class="form-group" style="text-align: right"><button type="button" class="btn btn-info btn-lg" onclick="add()">确定</button><button type="button" class="btn btn-secondary btn-lg" onclick="javascript:history.back()">返回</button></div></form></div><script type="text/javascript" src="js/jquery.min.js"></script><script>function add() {alert("添加成功");location.href = "book_list.html";}</script>
</body></html>

<!DOCTYPE html>
<html lang="en"><head><meta charset="UTF-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><title>图书列表展示</title><link rel="stylesheet" href="css/bootstrap.min.css"><link rel="stylesheet" href="css/list.css"><script type="text/javascript" src="js/jquery.min.js"></script><script type="text/javascript" src="js/bootstrap.min.js"></script><script src="js/jq-paginator.js"></script></head><body><div class="bookContainer"><h2>图书列表展示</h2><div class="navbar-justify-between"><div><button class="btn btn-outline-info" type="button" onclick="location.href='book_add.html'">添加图书</button><button class="btn btn-outline-info" type="button" onclick="batchDelete()">批量删除</button></div></div><table><thead><tr><td>选择</td><td class="width100">图书ID</td><td>书名</td><td>作者</td><td>数量</td><td>定价</td><td>出版社</td><td>状态</td><td class="width200">操作</td></tr></thead><tbody><tr><td><input type="checkbox" name="selectBook" value="1" id="selectBook" class="book-select"></td><td>1</td><td>大秦帝国第一册</td><td>我是作者</td><td>23</td><td>33.00</td><td>北京出版社</td><td>可借阅</td><td><div class="op"><a href="book_update.html?bookId=1">修改</a><a href="javascript:void(0)" onclick="deleteBook(1)">删除</a></div></td></tr><tr><td><input type="checkbox" name="selectBook" value="1" id="selectBook" class="book-select"></td><td>2</td><td>大秦帝国第二册</td><td>我是作者</td><td>23</td><td>33.00</td><td>北京出版社</td><td>可借阅</td><td><div class="op"><a href="book_update.html?bookId=2">修改</a><a href="javascript:void(0)" onclick="deleteBook(2)">删除</a></div></td></tr><tr><td><input type="checkbox" name="selectBook" value="1" id="selectBook" class="book-select"></td><td>3</td><td>大秦帝国第三册</td><td>我是作者</td><td>23</td><td>33.00</td><td>北京出版社</td><td>可借阅</td><td><div class="op"><a href="book_update.html?bookId=3">修改</a><a href="javascript:void(0)" onclick="deleteBook(3)">删除</a></div></td></tr><tr><td><input type="checkbox" name="selectBook" value="1" id="selectBook" class="book-select"></td><td>4</td><td>大秦帝国第四册</td><td>我是作者</td><td>23</td><td>33.00</td><td>北京出版社</td><td>可借阅</td><td><div class="op"><a href="book_update.html?bookId=4">修改</a><a href="javascript:void(0)" onclick="deleteBook(4)">删除</a></div></td></tr></tbody></table><div class="demo"><ul id="pageContainer" class="pagination justify-content-center"></ul></div><script>getBookList();function getBookList() {}//翻页信息$("#pageContainer").jqPaginator({totalCounts: 100, //总记录数pageSize: 10,    //每页的个数visiblePages: 5, //可视页数currentPage: 1,  //当前页码first: '<li class="page-item"><a class="page-link">首页</a></li>',prev: '<li class="page-item"><a class="page-link" href="javascript:void(0);">上一页<\/a><\/li>',next: '<li class="page-item"><a class="page-link" href="javascript:void(0);">下一页<\/a><\/li>',last: '<li class="page-item"><a class="page-link" href="javascript:void(0);">最后一页<\/a><\/li>',page: '<li class="page-item"><a class="page-link" href="javascript:void(0);">{{page}}<\/a><\/li>',//页面初始化和页码点击时都会执行onPageChange: function (page, type) {console.log("第"+page+"页, 类型:"+type);}});function deleteBook(id) {var isDelete = confirm("确认删除?");if (isDelete) {//删除图书alert("删除成功");}}function batchDelete() {var isDelete = confirm("确认批量删除?");if (isDelete) {//获取复选框的idvar ids = [];$("input:checkbox[name='selectBook']:checked").each(function () {ids.push($(this).val());});console.log(ids);alert("批量删除成功");}}</script></div>
</body></html>

<!DOCTYPE html>
<html lang="en"><head><meta charset="UTF-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><title>修改图书</title><link rel="stylesheet" href="css/bootstrap.min.css"><link rel="stylesheet" href="css/add.css">
</head><body><div class="container"><div class="form-inline"><h2 style="text-align: left; margin-left: 10px;"><svg xmlns="http://www.w3.org/2000/svg" width="40"fill="#17a2b8" class="bi bi-book-half" viewBox="0 0 16 16"><pathd="M8.5 2.687c.654-.689 1.782-.886 3.112-.752 1.234.124 2.503.523 3.388.893v9.923c-.918-.35-2.107-.692-3.287-.81-1.094-.111-2.278-.039-3.213.492V2.687zM8 1.783C7.015.936 5.587.81 4.287.94c-1.514.153-3.042.672-3.994 1.105A.5.5 0 0 0 0 2.5v11a.5.5 0 0 0 .707.455c.882-.4 2.303-.881 3.68-1.02 1.409-.142 2.59.087 3.223.877a.5.5 0 0 0 .78 0c.633-.79 1.814-1.019 3.222-.877 1.378.139 2.8.62 3.681 1.02A.5.5 0 0 0 16 13.5v-11a.5.5 0 0 0-.293-.455c-.952-.433-2.48-.952-3.994-1.105C10.413.809 8.985.936 8 1.783z" /></svg><span>修改图书</span></h2></div><form id="updateBook"><input type="hidden" class="form-control" id="bookId" name="id"><div class="form-group"><label for="bookName">图书名称:</label><input type="text" class="form-control" id="bookName" name="bookName"></div><div class="form-group"><label for="bookAuthor">图书作者</label><input type="text" class="form-control" id="bookAuthor" name="author"/></div><div class="form-group"><label for="bookStock">图书库存</label><input type="text" class="form-control" id="bookStock" name="count"/></div><div class="form-group"><label for="bookPrice">图书定价：</label><input type="number" class="form-control" id="bookPrice" name="price"></div><div class="form-group"><label for="bookPublisher">出版社</label><input type="text" id="bookPublisher" class="form-control" name="publish"/></div><div class="form-group"><label for="bookStatus">图书状态</label><select class="custom-select" id="bookStatus" name="status"><option value="1" selected>可借阅</option><option value="2">不可借阅</option></select></div><div class="form-group" style="text-align: right"><button type="button" class="btn btn-info btn-lg" onclick="update()">确定</button><button type="button" class="btn btn-secondary btn-lg" onclick="javascript:history.back()">返回</button></div></form></div><script type="text/javascript" src="js/jquery.min.js"></script><script>function update() {alert("更新成功");location.href = "book_list.html"}</script>
</body></html>

<!DOCTYPE html>
<html lang="en"><head><meta charset="UTF-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><title>Document</title><link rel="stylesheet" href="css/bootstrap.min.css"><link rel="stylesheet" href="css/login.css"><script type="text/javascript" src="js/jquery.min.js"></script>
</head><body><div class="container-login"><div class="container-pic"><img src="pic/computer.png" width="350px"></div><div class="login-dialog"><h3>登陆</h3><div class="row"><span>用户名</span><input type="text" name="userName" id="userName" class="form-control"></div><div class="row"><span>密码</span><input type="password" name="password" id="password" class="form-control"></div><div class="row"><button type="button" class="btn btn-info btn-lg" onclick="login()">登录</button></div></div></div><script src="js/jquery.min.js"></script><script>function login() {location.href = "book_list.html";}</script>
</body></html>

二：约定前后端交互接口

1：需求分析

后端需要提供两个接⼝

（1）账号密码校验接⼝

根据输⼊⽤⼾名和密码校验登录是否通过

（2）图书列表

提供图书列表信息

2：接口定义

（1）登录接⼝

[URL]

POST /user/login

[请求参数]

name=admin&password=admin

[响应]
true //账号密码验证成功
false//账号密码验证失败

（2）图书列表

[URL]
POST /book/getList

[请求参数]
⽆

[响应]——JSON的形式返回
返回图书列表
[
{
"id": 1,
"bookName": "活着",
"author": "余华",
"count": 270,
"price": 20,
"publish": "北京⽂艺出版社",
"status": 1,
"statusCN": "可借阅"
},
...
]

3：字段说明

三：服务器代码实现

1：创建图书类BookInfo

@Data
public class BookInfo {private Integer ID;private String bookName;private String author;private Integer num;private BigDecimal price;private String publishName;private Integer status;private String statusCN;
}

2：创建UserController

实现登录验证接⼝

@RequestMapping("/user")
@RestController
public class UserController {@RequestMapping("/login")public String login(String userName , String password , HttpSession session){//1:校验参数if(!StringUtils.hasLength(userName)|| !StringUtils.hasLength(password)){return "用户名或者密码为空";}//2：验证账户和密码if(!"admin".equals(userName) || !"admin".equals(password)){return "账户名错误或密码错误";}//3：返回响应结果return "登录成功";}

创建BookController,获取图书列表

@RequestMapping("/book")
@RestController
public class BookController {@Autowiredprivate BookService bookService;//注入依赖@RequestMapping("/getBookList")//mock数据模拟造假数据public List<BookInfo> getBookList(){//BookService bookService = new BookService();List<BookInfo> bookInfos =bookService.getBookList();return bookInfos;}
}

3：创建模拟（dao）包

注：数据采⽤mock的⽅式,实际数据应该从数据库中获取

此处创建⼀个虚拟的对象或者数据样本，⽤来辅助开发或者测试⼯作

在dao包下创建BookDao类

@Configuration
public class BookDao {//数据层，理论上应该从数据库中获取，当前采用mock的方式进行获取public List<BookInfo> mockData(){List<BookInfo> bookInfos = new ArrayList<>();for(int i = 0; i < 15; i++) {BookInfo bookInfo = new BookInfo();bookInfo.setID(i);bookInfo.setBookName("图书"+i);bookInfo.setAuthor("作者"+i);bookInfo.setNum(i*2+1);bookInfo.setPrice(new BigDecimal(i*3));bookInfo.setPublishName("出版社"+i);if (i%5==0){bookInfo.setStatus(2);//bookInfo.setStatusCN("不可借阅");状态信息是业务逻辑放到service中进行处理}else{bookInfo.setStatus(1);//bookInfo.setStatusCN("可借阅");}bookInfos.add(bookInfo);}return bookInfos;}
}

四：完善前端代码

1：添加登录处理逻辑

<script>function login() {//发起ajax请求$.ajax({url: "user/login",type: "post",data: {userName: $("#userName").val(),password: $("#password").val(),},success: function(result){//三种返回的http响应都是成功的if(result === "登录成功"){location.href = "book_list.html";}else{alert(result);}}});}</script>

2：删除代码

删除前端伪造的代码，从后端获取数据并渲染到⻚⾯上

<table><thead><tr><td>选择</td><td class="width100">图书ID</td><td>书名</td><td>作者</td><td>数量</td><td>定价</td><td>出版社</td><td>状态</td><td class="width200">操作</td></tr></thead><tbody></tbody></table>

3：完善获取图书方法

function getBookList() {$.ajax({url:"/book/getBookList",type: "get",success:function(books){var finnalHtml = "";for(var book of books){//用单引号拼接避免转义finnalHtml += '<tr>';finnalHtml += '<td><input type="checkbox" name="selectBook" value="'+book.id+'" id=" selectBook" class="book-select"></td>';finnalHtml += '<td>'+book.id+'</td>';finnalHtml += '<td>'+book.bookName+'</td>';finnalHtml += '<td>'+book.author+'</td>';finnalHtml += '<td>'+book.num+'</td>';finnalHtml += '<td>'+book.price+'</td>';finnalHtml += '<td>'+book.publishName+'</td>';finnalHtml += '<td>'+book.statusCN+'</td>';finnalHtml += '<td>';finnalHtml += '<div class="op">';finnalHtml += '<a href="book_update.html?bookId='+book.id+'">修改</a>';finnalHtml += '<a href="javascript:void(0)" onclick="deleteBook(4)">删除</a>';finnalHtml += '</div>';finnalHtml += '</td>';finnalHtml += '</tr>';}$("tbody").html(finnalHtml);}});}