Code is as following:
<jsp:plugin type="applet" code="Clock2.class" codebase="applet" jreversion="1.2" width="160" height="150" > <jsp:fallback> Plugin tag OBJECT or EMBED not supported by browser. </jsp:fallback></jsp:plugin>将 applet 嵌入到 HTML 中，可以参考本站的 Syntax of embedding Applet in HTML.