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JSP语法（12）——<jsp:useBean>

<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" 
{ 
	class="package.class" | 
	type="package.class" | 
	class="package.class" type="package.class" | 
	beanName="{package.class | <%= expression %>}" type="package.class" 
} 
{ 
/> | 
> other elements </jsp:useBean>
} 

例子

<jsp:useBean id="cart" scope="session" class="session.Carts" />
<jsp:setProperty name="cart" property="*" />
<jsp:useBean id="checking" scope="session" class="bank.Checking" >
<jsp:setProperty name="checking" property="balance" value="0.0" />
</jsp:useBean>