| 对象名 | 类型 | 作用域 |
| request | javax.servlet.ServletRequest | Request |
| response | javax.servlet.ServletResponse | Page |
| pageContext | javax.servlet.jsp.PageContxt | Page |
| session | javax.servlet.http.HttpSession | Session |
| application | javax.servlet.ServletContext | Application |
| out | javax.servlet.jsp.JspWriter | Page |
| config | javax.servlet.ServletConfig | Page |
| page | java.lang.Object | Page |
| exception | java.lang.Throwable | Page |