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发信人: agents (智能代理), 信区: Java
标  题: JSP语法（9）
发信站: BBS 水木清华站 (Tue Jan  2 14:51:19 2001)

【<jsp:getProperty>】
   Gets the value of a Bean property so that you can display it in a result
   page.

▲ ［JSP Syntax］

<jsp:getProperty name="beanInstanceName"  property="propertyName" />

▲ ［Examples］

<jsp:useBean id="calendar" scope="page" class="employee.Calendar" />
<h2>
Calendar of <jsp:getProperty name="calendar" property="username" />
</h2>

▲［Description］

You must create or locate a Bean instance with <jsp:useBean> before you use
<jsp:getProperty>.

The <jsp:getProperty> tag gets a Bean property value using the property's
get method, converts the value of a Bean property to a String and stores it
in the out object.

In JSP 1.0, <jsp:getProperty> has a few limitations you should be aware of:
(1)You cannot use <jsp:getProperty> to retrieve the values of an indexed
property.
(2)You can use <jsp:getProperty> with JavaBeans components, but not with enterp
rise beans. You can get around this limitation by writing a JSP application
in which a JSP file gets values from a Bean, and the Bean in turns calls an
enterprise bean.
▲［Attributes］

(1)name="beanInstanceName"
The name of the Bean instance as declared in a <jsp:useBean> tag.
(2)property="propertyName"
The name of the Bean property whose value you want to display.

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※ 修改:·agents 於 Jan  2 16:39:30 修改本文·[FROM:   166.111.54.22]
※ 来源:·BBS 水木清华站 smth.org·[FROM: 166.111.54.22]