<jsp:useBean> 创建一个Bean实例并指定它的名字和作用范围. JSP 语法 <jsp:useBean id="beanInstanceName" scope="page | request | session | application ...

The new JavaServer Pages (JSP) version incorporates the expression language (EL) introduced by the JSP Standard Tag Library (JSTL) to let Web designers produce scriptless JSP pages that don’t ...

The View Helper pattern specifies that you use helpers to adapt model data to the presentation layer of an application. Typically, the presentation layer contains several JSP (JavaServer Pages) pages.

Each tag library defines a set of actions. For example, the jsp tag library defines three actions: “getProperty”, “setProperty” and “useBean”. Each action is defined by a single Java class, known as a ...