When the browser makes a request,the embedded code runs in a servlet engine,which interprets the JSP tags and scriptlets and sends the results back as an HTML page to the browser.

• 当浏览器有请求时，就在servlet引擎中运行嵌入式程序代码由该引擎解释JSP标记和scriptlets，并将结果按html页面发送给浏览器。