Spring-boot删除javascript确认消息
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【中文标题】Spring-boot删除javascript确认消息【英文标题】：Spring-boot delete javascript confirmation message 【发布时间】：2020-02-26 14:35:09 【问题描述】：在我的 Springboot 系统中，当我选择删除按钮时，我需要有一个 javascript 弹出消息来确认删除。但是，当我单击删除按钮时，当前它会删除记录而不会弹出确认消息。有人可以帮我解决这个问题吗？谢谢。
主题视图 html 文件
<!DOCTYPE html>
<html xmlns:th="https://www.thymeleaf.org">
<head>
<!-- Nav Bar header code-->
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge"/>
<meta name="viewport" content="width=device-width, initial-scale=1"/>
<!-- The above 3 meta tags *must* come first in the head; any other head content must come *after* these tags -->
<script type="text/javascript" src="webjars/jquery/1.9.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.3/umd/popper.min.js"></script>
<script type="text/javascript" src="webjars/bootstrap/4.0.0-alpha.2/js/bootstrap.min.js"></script>
<script type="text/javascript" th:src="@js/main.js" src="../static/js/main.js"></script>
<link rel="icon" href="../../favicon.ico"/>
<link rel="stylesheet" href="webjars/bootstrap/4.0.0-alpha.2/css/bootstrap.min.css "/>
<!-- Bootstrap core CSS -->
<link href="../static/css/bootstrap.css" rel="stylesheet" th:href="@/css/bootstrap.css"/>
<!-- End of Nav Bar header code-->
<link rel="stylesheet" type="text/css" href="static/css/view.css" th:href="@/css/view.css">
<meta charset="UTF-8">
<title>Subject Details</title>
</head>
<body>
<!-- Nav Bar body code-->
<div class="containerr">
<!-- Static navbar -->
<nav class="navbar navbar-default">
<div class="container-fluid">
<div class="navbar-header">
<button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#navbar"
aria-expanded="false" aria-controls="navbar">
<span class="sr-only">Toggle navigation</span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</button>
</div>
<div id="navbar" class="navbar-collapse collapse">
<ul class="nav navbar-nav navbar-right">
<li class="active"><a href="../admin/">Home</a></li>
<li><a href="#">About</a></li>
<li><a href="#">Contact</a></li>
</ul>
</div><!--/.nav-collapse -->
</div><!--/.container-fluid -->
</nav>
</div>
<!-- End of Nav Bar body code-->
<h1>Subject Details</h1>
<a href="../subject/new"><h2>Add a new Subject</h2></a>
<a href="../subject/csv"><h2>Upload a CSV File</h2></a>
<div class="container" style="margin-top:30px">
<br><br>
<table border="1">
<thead>
<tr>
<th>Subject Code</th>
<th>Name</th>
<th></th>
<th></th>
</tr>
</thead>
<tbody>
<tr th:each="subject : $subjectDetails">
<td th:text="$subject.subjectCode">Code</td>
<td th:text="$subject.name">Name</td>
<td>
<a th:href="@'/subject/edit/' + $subject.id">Edit</a>
</td>
<td>
<a th:href="@subject/delete/(id=$subject.id)" class="btn btn-danger delBtn">Delete</a>
</td>
</tr>
</tbody>
</table>
</div>
<div class="myForm">
<div class="modal fade" id="myModal" tabindex="-1" role="dialog" aria-labelledby="exampleModalLabel" aria-hidden="true">
<div class="modal-dialog" role="document">
<div class="modal-content">
<div class="modal-header">
<h5 class="modal-title" id="exampleModalLabel">Modal title</h5>
<button type="button" class="close" data-dismiss="modal" aria-label="Close">
<span aria-hidden="true">×</span>
</button>
</div>
<div class="modal-body">
<P class ="alert alert-danger">
Are you sure you want to delete?
</P>
</div>
<div class="modal-footer">
<button type="button" class="btn btn-secondary" data-dismiss="modal">Close</button>
<a href="" class="btn btn-danger" id="delRef">Delete</a>
</div>
</div>
</div>
</div>
</div>
<!-- Bootstrap core JavaScript
================================================== -->
<!-- Placed at the end of the document so the pages load faster -->
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script>
<script src="../static/js/bootstrap.js" th:href="@/js/bootstrap.js"></script>
<!-- IE10 viewport hack for Surface/desktop Windows 8 bug -->
</body>
</html>
主题控制者
@RequestMapping("/subject/delete")
public String deleteProduct(Long id)
subjectDAO.delete(id);
return "redirect:/subject";
main.js
$(document).ready(function ()
$('.table .delBtn').on('click',function (event)
event.preventDefault();
var href=$(this).attr('href');
$('#myModal #delRef').attr('href',href);
$('#myModal').modal();
);
);
【问题讨论】：
【参考方案1】：您可以在单击删除按钮时使用警报来确认或取消。
function myFunction()
var txt;
if (confirm("Want to delete!"))
txt = "Deleted!";
// Do the delete when you click ok
else
txt = "Cancel!";
// If you click cancel, remove the alert box
console.log(txt);
【讨论】：
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