javax.servlet
Class ServletRequestAttributeEvent
java.lang.Object
java.util.EventObject
javax.servlet.ServletRequestEvent
javax.servlet.ServletRequestAttributeEvent
- All Implemented Interfaces:
- Serializable
public class ServletRequestAttributeEvent
- extends ServletRequestEvent
这是一个事件类,用于通知有关应用程序中 servlet 请求的属性更改的信息。
英文文档:
This is the event class for notifications of changes to the
attributes of the servlet request in an application.
- Since:
- Servlet 2.4
- See Also:
ServletRequestAttributeListener
,
Serialized Form
Method Summary |
String |
getName()
Return the name of the attribute that changed on the ServletRequest. |
Object |
getValue()
Returns the value of the attribute that has been added, removed or
replaced. |
public
ServletRequestAttributeEvent(ServletContext sc, ServletRequest request, String name, Object value)
给出此 Web 应用程序的 servlet 上下文、属性正发生更改的 ServletRequest 以及属性的名称和值,构造 ServletRequestAttributeEvent。
sc |
发送该事件的 ServletContext。 |
request |
发送该事件的 ServletRequest。 |
name |
请求属性的名称。 |
value |
请求属性的值。 |
英文文档:
ServletRequestAttributeEvent
public ServletRequestAttributeEvent(ServletContext sc,
ServletRequest request,
String name,
Object value)
- Construct a ServletRequestAttributeEvent giving the servlet context
of this web application, the ServletRequest whose attributes are
changing and the name and value of the attribute.
- Parameters:
sc
- the ServletContext that is sending the event.request
- the ServletRequest that is sending the event.name
- the name of the request attribute.value
- the value of the request attribute.
public String
getName()
返回 ServletRequest 中更改的属性的名称。
英文文档:
getName
public String getName()
- Return the name of the attribute that changed on the ServletRequest.
- Returns:
- the name of the changed request attribute
public Object
getValue()
返回已添加、移除或替换的属性的值。如果添加了属性,则这是属性的值。如果移除了属性,则这是被移除属性的值。如果替换了属性,则这是属性原来的值。
英文文档:
getValue
public Object getValue()
- Returns the value of the attribute that has been added, removed or
replaced. If the attribute was added, this is the value of the
attribute. If the attribute was removed, this is the value of the
removed attribute. If the attribute was replaced, this is the old
value of the attribute.
- Returns:
- the value of the changed request attribute
Submit a bug or feature Copyright 2007 Sun Microsystems, Inc. All rights reserved. Use is subject to license terms.
一看就知道只有菜鸟才干这么无知的事啦。
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