1. 网络接口问题，会出现报错，误导为跨域问题

has been blocked by CoRs
indexpc.html:1
policy: Response to preflight request doesn't pass access control check: No "Access-Control-Allow 0rigin header is present on the reouested resource.
< Failed to load resource: net::ERR FAILED
:8001/schoolweb/bd/sys/doLogin:

这个问题实际的解决是，检查接口地址是否正确，

不需要先考虑跨域的问题

2. sweetalert2 插件更新问题

影响页面跳转，传参和使用方法调整变化

参考 ；https://stackoverflow.com/questions/58950870/sweetalert2-swal-fire-disappears-after-popup-very-strange-error

更改后

        <script src="https://cdn.jsdelivr.net/npm/sweetalert2@10.5.0/dist/sweetalert2.all.min.js"></script>
    <script src="https://cdn.jsdelivr.net/npm/promise-polyfill@8/dist/polyfill.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.5.1/jquery.min.js" integrity="sha512-bLT0Qm9VnAYZDflyKcBaQ2gg0hSYNQrJ8RilYldYQ1FxQYoCLtUjuuRuZo+fjqhx/qtq/1itJ0C2ejDxltZVFg==" crossorigin="anonymous"></script>
    <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/sweetalert2@10/dist/sweetalert2.min.css" id="theme-styles">

swal.fire({
   
   
                            title: 'success!',
                            text: '登录成功',
                            // icon: 'error',
                            confirmButtonText: '确 定'
                        }).then((result) => {
   
   
                            if (result.isConfirmed)
                                window.location.href = "searchpc.html";
                            else
                                swal.fire("Error!", "Coudn't delet!", "error");
                        });

3. 服务端部署问题

net::ERR CONNECTION REFUSED
sudo systemctl restart tomcat

服务器接口 启动问题检查

更新插件时间；2024年7月13日