这是我参与11月更文挑战的第12天，活动详情查看：2021最后一次更文挑战
查询所有员工
1）、RestfulCRUD：CRUD满足Rest风格；
URI： /资源名称/资源标识 HTTP请求方式区分对资源CRUD操作
| 普通CRUD（uri来区分操作） | RestfulCRUD | |
|---|---|---|
| 查询 | getEmp | emp---GET |
| 添加 | addEmp?xxx | emp---POST |
| 修改 | updateEmp?id=xxx&xxx=xx | emp/{id}---PUT |
| 删除 | deleteEmp?id=1 | emp/{id}---DELETE |
2）、实验的请求架构;
| 实验功能 | 请求URI | 请求方式 |
|---|---|---|
| 查询所有员工 | emps | GET |
| 查询某个员工(来到修改页面) | emp/1 | GET |
| 来到添加页面 | emp | GET |
| 添加员工 | emp | POST |
| 来到修改页面（查出员工进行信息回显） | emp/1 | GET |
| 修改员工 | emp | PUT |
| 删除员工 | emp/1 | DELETE |
我们登陆完成之后就要实现我们第一个页面的实现了。
点击方框中选项，展示所有员工信息，我们页面就像不展示了，放在后面我们一起导出，我们只说Springboot部分的。
最先我们在Controller中新建一个处理员工需求的类
@Controller
public class EmployeeController {
@Autowired
EmployeeDao employeeDao;
/**
* 查询所有员工返回列表
* @return
*/
@GetMapping("/emps")
public String list(Model model){
Collection<Employee> employees = employeeDao.getAll();
//放在请求域中
model.addAttribute("emps",employees);
return "emp/list";
}
}
文件位置
thymeleaf公共页面元素抽取
1、抽取公共片段
<div th:fragment="copy">
© 2011 The Good Thymes Virtual Grocery
</div>
2、引入公共片段
<div th:insert="~{footer :: copy}"></div>
~{templatename::selector}：模板名::选择器
~{templatename::fragmentname}:模板名::片段名
3、默认效果：
insert的公共片段在div标签中
如果使用th:insert等属性进行引入，可以不用写~{}：
行内写法可以加上：[[~{}]];[(~{})]；
三种引入公共片段的th属性：
th:insert：将公共片段整个插入到声明引入的元素中
th:replace：将声明引入的元素替换为公共片段
th:include：将被引入的片段的内容包含进这个标签中
我们把修改之后HTML直接拿出来
HTML文件
list.html
<!DOCTYPE html>
<!-- saved from url=(0052)http://getbootstrap.com/docs/4.0/examples/dashboard/ -->
<html lang="en" xmlns:th="http://www.thymeleaf.org">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
<meta name="description" content="">
<meta name="author" content="">
<title>Dashboard Template for Bootstrap</title>
<!-- Bootstrap core CSS -->
<link href="asserts/css/bootstrap.min.css" rel="stylesheet">
<!-- Custom styles for this template -->
<link href="asserts/css/dashboard.css" rel="stylesheet">
<style type="text/css">
/* Chart.js */
@-webkit-keyframes chartjs-render-animation {
from {
opacity: 0.99
}
to {
opacity: 1
}
}
@keyframes chartjs-render-animation {
from {
opacity: 0.99
}
to {
opacity: 1
}
}
.chartjs-render-monitor {
-webkit-animation: chartjs-render-animation 0.001s;
animation: chartjs-render-animation 0.001s;
}
</style>
</head>
<body>
<!--引入抽取-->
<div th:replace="commons/bar::topbar"></div>
<div class="container-fluid">
<div class="row">
<!--引入侧边栏-->
<div th:replace="commons/bar::sidebar(activeUri='emps')"></div>
<main role="main" class="col-md-9 ml-sm-auto col-lg-10 pt-3 px-4">
<h2><button class="btn btn-sm btn-success">员工添加</button></h2>
<div class="table-responsive">
<table class="table table-striped table-sm">
<thead>
<tr>
<th>#</th>
<th>lastName</th>
<th>email</th>
<th>gender</th>
<th>department</th>
<th>birth</th>
<th>操作</th>
</tr>
</thead>
<tbody>
<tr th:each="emp:${emps}">
<td th:text="${emp.id}"></td>
<td>[[${emp.lastName}]]</td>
<td th:text="${emp.email}"></td>
<td th:text="${emp.gender==0?'女':'男'}"></td>
<td th:text="${emp.department.departmentName}"></td>
<td th:text="${#dates.format(emp.birth,'yyyy-MM-dd HH:mm')}"></td>
<td>
<button class="btn btn-sm btn-primary">编辑</button>
<button class="btn btn-sm btn-danger">删除</button>
</td>
</tr>
</tbody>
</table>
</div>
</main>
</div>
</div>
<!-- Bootstrap core JavaScript
================================================== -->
<!-- Placed at the end of the document so the pages load faster -->
<script type="text/javascript" src="asserts/js/jquery-3.2.1.slim.min.js"></script>
<script type="text/javascript" src="asserts/js/popper.min.js"></script>
<script type="text/javascript" src="asserts/js/bootstrap.min.js"></script>
<!-- Icons -->
<script type="text/javascript" src="asserts/js/feather.min.js"></script>
<script>
feather.replace()
</script>
<!-- Graphs -->
<script type="text/javascript" src="asserts/js/Chart.min.js"></script>
<script>
var ctx = document.getElementById("myChart");
var myChart = new Chart(ctx, {
type: 'line',
data: {
labels: ["Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"],
datasets: [{
data: [15339, 21345, 18483, 24003, 23489, 24092, 12034],
lineTension: 0,
backgroundColor: 'transparent',
borderColor: '#007bff',
borderWidth: 4,
pointBackgroundColor: '#007bff'
}]
},
options: {
scales: {
yAxes: [{
ticks: {
beginAtZero: false
}
}]
},
legend: {
display: false,
}
}
});
</script>
</body>
</html>
bar.html
<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.thymeleaf.org">
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<body>
<!--topbar-->
<nav class="navbar navbar-dark sticky-top bg-dark flex-md-nowrap p-0" th:fragment="topbar">
<a class="navbar-brand col-sm-3 col-md-2 mr-0" href="http://getbootstrap.com/docs/4.0/examples/dashboard/#">[[${session.loginUser}]]</a>
<input class="form-control form-control-dark w-100" type="text" placeholder="Search" aria-label="Search">
<ul class="navbar-nav px-3">
<li class="nav-item text-nowrap">
<a class="nav-link" href="http://getbootstrap.com/docs/4.0/examples/dashboard/#">Sign out</a>
</li>
</ul>
</nav>
<nav class="col-md-2 d-none d-md-block bg-light sidebar" th:fragment="sidebar">
<div class="sidebar-sticky">
<ul class="nav flex-column">
<li class="nav-item">
<a class="nav-link active"
th:class="${activeUri=='main.html'?'nav-link active':'nav-link'}"
href="http://getbootstrap.com/docs/4.0/examples/dashboard/#">
<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="feather feather-home">
<path d="M3 9l9-7 9 7v11a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2z"></path>
<polyline points="9 22 9 12 15 12 15 22"></polyline>
</svg>
Dashboard <span class="sr-only">(current)</span>
</a>
</li>
<li class="nav-item">
<a class="nav-link" href="http://getbootstrap.com/docs/4.0/examples/dashboard/#">
<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="feather feather-file">
<path d="M13 2H6a2 2 0 0 0-2 2v16a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V9z"></path>
<polyline points="13 2 13 9 20 9"></polyline>
</svg>
Orders
</a>
</li>
<li class="nav-item">
<a class="nav-link" href="http://getbootstrap.com/docs/4.0/examples/dashboard/#">
<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="feather feather-shopping-cart">
<circle cx="9" cy="21" r="1"></circle>
<circle cx="20" cy="21" r="1"></circle>
<path d="M1 1h4l2.68 13.39a2 2 0 0 0 2 1.61h9.72a2 2 0 0 0 2-1.61L23 6H6"></path>
</svg>
Products
</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#" th:href="@{/emps}"
th:class="${activeUri=='emps'?'nav-link active':'nav-link'}">
<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="feather feather-users">
<path d="M17 21v-2a4 4 0 0 0-4-4H5a4 4 0 0 0-4 4v2"></path>
<circle cx="9" cy="7" r="4"></circle>
<path d="M23 21v-2a4 4 0 0 0-3-3.87"></path>
<path d="M16 3.13a4 4 0 0 1 0 7.75"></path>
</svg>
员工管理
</a>
</li>
<li class="nav-item">
<a class="nav-link" href="http://getbootstrap.com/docs/4.0/examples/dashboard/#">
<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="feather feather-bar-chart-2">
<line x1="18" y1="20" x2="18" y2="10"></line>
<line x1="12" y1="20" x2="12" y2="4"></line>
<line x1="6" y1="20" x2="6" y2="14"></line>
</svg>
Reports
</a>
</li>
<li class="nav-item">
<a class="nav-link" href="http://getbootstrap.com/docs/4.0/examples/dashboard/#">
<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="feather feather-layers">
<polygon points="12 2 2 7 12 12 22 7 12 2"></polygon>
<polyline points="2 17 12 22 22 17"></polyline>
<polyline points="2 12 12 17 22 12"></polyline>
</svg>
Integrations
</a>
</li>
</ul>
<h6 class="sidebar-heading d-flex justify-content-between align-items-center px-3 mt-4 mb-1 text-muted">
<span>Saved reports</span>
<a class="d-flex align-items-center text-muted" href="http://getbootstrap.com/docs/4.0/examples/dashboard/#">
<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="feather feather-plus-circle"><circle cx="12" cy="12" r="10"></circle><line x1="12" y1="8" x2="12" y2="16"></line><line x1="8" y1="12" x2="16" y2="12"></line></svg>
</a>
</h6>
<ul class="nav flex-column mb-2">
<li class="nav-item">
<a class="nav-link" href="http://getbootstrap.com/docs/4.0/examples/dashboard/#">
<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="feather feather-file-text">
<path d="M14 2H6a2 2 0 0 0-2 2v16a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V8z"></path>
<polyline points="14 2 14 8 20 8"></polyline>
<line x1="16" y1="13" x2="8" y2="13"></line>
<line x1="16" y1="17" x2="8" y2="17"></line>
<polyline points="10 9 9 9 8 9"></polyline>
</svg>
Current month
</a>
</li>
<li class="nav-item">
<a class="nav-link" href="http://getbootstrap.com/docs/4.0/examples/dashboard/#">
<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="feather feather-file-text">
<path d="M14 2H6a2 2 0 0 0-2 2v16a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V8z"></path>
<polyline points="14 2 14 8 20 8"></polyline>
<line x1="16" y1="13" x2="8" y2="13"></line>
<line x1="16" y1="17" x2="8" y2="17"></line>
<polyline points="10 9 9 9 8 9"></polyline>
</svg>
Last quarter
</a>
</li>
<li class="nav-item">
<a class="nav-link" href="http://getbootstrap.com/docs/4.0/examples/dashboard/#">
<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="feather feather-file-text">
<path d="M14 2H6a2 2 0 0 0-2 2v16a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V8z"></path>
<polyline points="14 2 14 8 20 8"></polyline>
<line x1="16" y1="13" x2="8" y2="13"></line>
<line x1="16" y1="17" x2="8" y2="17"></line>
<polyline points="10 9 9 9 8 9"></polyline>
</svg>
Social engagement
</a>
</li>
<li class="nav-item">
<a class="nav-link" href="http://getbootstrap.com/docs/4.0/examples/dashboard/#">
<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="feather feather-file-text">
<path d="M14 2H6a2 2 0 0 0-2 2v16a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V8z"></path>
<polyline points="14 2 14 8 20 8"></polyline>
<line x1="16" y1="13" x2="8" y2="13"></line>
<line x1="16" y1="17" x2="8" y2="17"></line>
<polyline points="10 9 9 9 8 9"></polyline>
</svg>
Year-end sale
</a>
</li>
</ul>
</div>
</nav>
</body>
</html>
dashboard.html
<!DOCTYPE html>
<!-- saved from url=(0052)http://getbootstrap.com/docs/4.0/examples/dashboard/ -->
<html lang="en" xmlns:th="http://www.thymeleaf.org">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
<meta name="description" content="">
<meta name="author" content="">
<title>Dashboard Template for Bootstrap</title>
<!-- Bootstrap core CSS -->
<link href="asserts/css/bootstrap.min.css" th:href="@{/webjars/bootstrap/4.0.0/css/bootstrap.css}" rel="stylesheet">
<!-- Custom styles for this template -->
<link href="asserts/css/dashboard.css" th:href="@{asserts/css/dashboard.css}" rel="stylesheet">
<style ty pe="text/css">
/* Chart.js */
@-webkit-keyframes chartjs-render-animation {
from {
opacity: 0.99
}
to {
opacity: 1
}
}
@keyframes chartjs-render-animation {
from {
opacity: 0.99
}
to {
opacity: 1
}
}
.chartjs-render-monitor {
-webkit-animation: chartjs-render-animation 0.001s;
animation: chartjs-render-animation 0.001s;
}
</style>
</head>
<body>
<!--引入topbar-->
<div th:replace="commons/bar::topbar"></div>
<div class="container-fluid">
<div class="row">
<!--引入sidebar-->
<div th:replace="commons/bar::sidebar(activeUri='main.html')"></div>
<main role="main" class="col-md-9 ml-sm-auto col-lg-10 pt-3 px-4">
<div class="chartjs-size-monitor" style="position: absolute; left: 0px; top: 0px; right: 0px; bottom: 0px; overflow: hidden; pointer-events: none; visibility: hidden; z-index: -1;">
<div class="chartjs-size-monitor-expand" style="position:absolute;left:0;top:0;right:0;bottom:0;overflow:hidden;pointer-events:none;visibility:hidden;z-index:-1;">
<div style="position:absolute;width:1000000px;height:1000000px;left:0;top:0"></div>
</div>
<div class="chartjs-size-monitor-shrink" style="position:absolute;left:0;top:0;right:0;bottom:0;overflow:hidden;pointer-events:none;visibility:hidden;z-index:-1;">
<div style="position:absolute;width:200%;height:200%;left:0; top:0"></div>
</div>
</div>
<div class="d-flex justify-content-between flex-wrap flex-md-nowrap align-items-center pb-2 mb-3 border-bottom">
<h1 class="h2">Dashboard</h1>
<div class="btn-toolbar mb-2 mb-md-0">
<div class="btn-group mr-2">
<button class="btn btn-sm btn-outline-secondary">Share</button>
<button class="btn btn-sm btn-outline-secondary">Export</button>
</div>
<button class="btn btn-sm btn-outline-secondary dropdown-toggle">
<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="feather feather-calendar"><rect x="3" y="4" width="18" height="18" rx="2" ry="2"></rect><line x1="16" y1="2" x2="16" y2="6"></line><line x1="8" y1="2" x2="8" y2="6"></line><line x1="3" y1="10" x2="21" y2="10"></line></svg>
This week
</button>
</div>
</div>
<canvas class="my-4 chartjs-render-monitor" id="myChart" width="1076" height="454" style="display: block; width: 1076px; height: 454px;"></canvas>
</main>
</div>
</div>
<!-- Bootstrap core JavaScript
================================================== -->
<!-- Placed at the end of the document so the pages load faster -->
<script type="text/javascript" src="asserts/js/jquery-3.2.1.slim.min.js" ></script>
<script type="text/javascript" src="asserts/js/popper.min.js" ></script>
<script type="text/javascript" src="asserts/js/bootstrap.min.js" ></script>
<!-- Icons -->
<script type="text/javascript" src="asserts/js/feather.min.js" ></script>
<script>
feather.replace()
</script>
<!-- Graphs -->
<script type="text/javascript" src="asserts/js/Chart.min.js" ></script>
<script>
var ctx = document.getElementById("myChart");
var myChart = new Chart(ctx, {
type: 'line',
data: {
labels: ["Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"],
datasets: [{
data: [15339, 21345, 18483, 24003, 23489, 24092, 12034],
lineTension: 0,
backgroundColor: 'transparent',
borderColor: '#007bff',
borderWidth: 4,
pointBackgroundColor: '#007bff'
}]
},
options: {
scales: {
yAxes: [{
ticks: {
beginAtZero: false
}
}]
},
legend: {
display: false,
}
}
});
</script>
</body>
</html>
添加员工
首先，修改一下list中i的请求路径
编写跳转到员工页面的代码，获取部门信息，发送到页面
@GetMapping("/emp")
public String toAddPage(Model model){
//查出所有部门在页面显示
Collection<Department> departments = departmentDao.getDepartments();
model.addAttribute("depts",departments);
return "emp/add";
}
之后编写，添加员工的方法
@PostMapping("/emp")
public String addEmp(Employee employee){
System.out.println(employee);
employeeDao.save(employee);
return "redirect:emps";
}
这是我是用添加表单
<!DOCTYPE html>
<!-- saved from url=(0052)http://getbootstrap.com/docs/4.0/examples/dashboard/ -->
<html lang="en" xmlns:th="http://www.thymeleaf.org">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
<meta name="description" content="">
<meta name="author" content="">
<title>Dashboard Template for Bootstrap</title>
<!-- Bootstrap core CSS -->
<link href="asserts/css/bootstrap.min.css" th:href="@{/webjars/bootstrap/4.0.0/css/bootstrap.css}" rel="stylesheet">
<!-- Custom styles for this template -->
<link href="asserts/css/dashboard.css" th:href="@{/asserts/css/dashboard.css}" rel="stylesheet">
<style type="text/css">
/* Chart.js */
@-webkit-keyframes chartjs-render-animation {
from {
opacity: 0.99
}
to {
opacity: 1
}
}
@keyframes chartjs-render-animation {
from {
opacity: 0.99
}
to {
opacity: 1
}
}
.chartjs-render-monitor {
-webkit-animation: chartjs-render-animation 0.001s;
animation: chartjs-render-animation 0.001s;
}
</style>
</head>
<body>
<!--引入抽取的topbar-->
<!--模板名：会使用thymeleaf的前后缀配置规则进行解析-->
<div th:replace="commons/bar::topbar"></div>
<div class="container-fluid">
<div class="row">
<!--引入侧边栏-->
<div th:replace="commons/bar::sidebar(activeUri='emps')"></div>
<main role="main" class="col-md-9 ml-sm-auto col-lg-10 pt-3 px-4">
<!--需要区分是员工修改还是添加；-->
<form th:action="@{/emp}" method="post">
<!--发送put请求修改员工数据-->
<!--
1、SpringMVC中配置HiddenHttpMethodFilter;（SpringBoot自动配置好的）
2、页面创建一个post表单
3、创建一个input项，name="_method";值就是我们指定的请求方式
-->
<input type="hidden" name="_method" value="put" th:if="${emp!=null}"/>
<input type="hidden" name="id" th:if="${emp!=null}" th:value="${emp.id}">
<div class="form-group">
<label>LastName</label>
<input name="lastName" type="text" class="form-control" placeholder="zhangsan" th:value="${emp!=null}?${emp.lastName}">
</div>
<div class="form-group">
<label>Email</label>
<input name="email" type="email" class="form-control" placeholder="zhangsan@atguigu.com" th:value="${emp!=null}?${emp.email}">
</div>
<div class="form-group">
<label>Gender</label><br/>
<div class="form-check form-check-inline">
<input class="form-check-input" type="radio" name="gender" value="1" th:checked="${emp!=null}?${emp.gender==1}">
<label class="form-check-label">男</label>
</div>
<div class="form-check form-check-inline">
<input class="form-check-input" type="radio" name="gender" value="0" th:checked="${emp!=null}?${emp.gender==0}">
<label class="form-check-label">女</label>
</div>
</div>
<div class="form-group">
<label>department</label>
<!--提交的是部门的id-->
<select class="form-control" name="department.id">
<option th:selected="${emp!=null}?${dept.id == emp.department.id}" th:value="${dept.id}" th:each="dept:${depts}" th:text="${dept.departmentName}">1</option>
</select>
</div>
<div class="form-group">
<label>Birth</label>
<input name="birth" type="text" class="form-control" placeholder="zhangsan" th:value="${emp!=null}?${#dates.format(emp.birth, 'yyyy-MM-dd HH:mm')}">
</div>
<button type="submit" class="btn btn-primary" th:text="${emp!=null}?'修改':'添加'">添加</button>
</form>
</main>
</div>
</div>
<!-- Bootstrap core JavaScript
================================================== -->
<!-- Placed at the end of the document so the pages load faster -->
<script type="text/javascript" src="asserts/js/jquery-3.2.1.slim.min.js" th:src="@{/webjars/jquery/3.3.1/jquery.js}"></script>
<script type="text/javascript" src="asserts/js/popper.min.js" th:src="@{/webjars/popper.js/1.11.1/dist/popper.js}"></script>
<script type="text/javascript" src="asserts/js/bootstrap.min.js" th:src="@{/webjars/bootstrap/4.0.0/js/bootstrap.js}"></script>
<!-- Icons -->
<script type="text/javascript" src="asserts/js/feather.min.js" th:src="@{/asserts/js/feather.min.js}"></script>
<script>
feather.replace()
</script>
</body>
</html>
现在我们就出现了另一个问题，就是我们的日期格式是固定的，如果我们写了别的格式，就会报一个400的错误，然后我们可以在配置文件中修改日期的格式
spring.mvc.format.date=yyyy-MM-dd
但是，大家还是不要让用户自己去填写日期，尽量让用户使用选择的方式来获取数据，这样可以避免许多意想不到的错误
