javascript - jsp : Could I change the order of render/execution-6ren

javascript - jsp : Could I change the order of render/execution

转载作者：行者123 更新时间：2023-12-03 06:42:52

我正在研究jsp，我想要实现的非常简单。

用 Java 做一些耗时的工作
处理时，向用户显示微调器

所以我已经实现如下

<%@ page contentType="text/html; charset=UTF-8" %>
<%@ page isThreadSafe="true" %>
<%

    boolean isFinish = false;
    Thread executeThread = new Thread(new Runnable() {
        @Override
        public void run() {
            for(int i = 0; i < 10; i++){
                try{
                    System.out.println(i + " Thread ");
                    Thread.sleep(1000);
                }catch(Exception ex){
                    System.err.println(ex);
                }
            }
        }
    });

    executeThread.run();
%>
<!DOCTYPE html>
<html>
    <head>
        <meta charset='utf-8'>
        <title>Loading</title>
    </head>
    <body>
        <div class="popup" style="text-align: center;">
            <div class="l_img">
                <img src="resources/image/spinner/loading_gif.gif" alt="LOADING...">
            </div>
            <div class="b_txt">Processing</div>
            <div class="s_txt">Please, wait..</div>
        </div>
    </body>
    <%
        if(isFinish){
    %>
        <script>
            alert('done');
        </script>
    <%
        }
    %>
</html>