Implicit Objects for Scriptlets (JSP Scriplets中的隐含对象) | Type (对应类型) | Scope (范围) | Some Useful Methods (see class or interface for others) (常用的方法) | |
1 | request | Subclass of javax.servlet.ServletRequest | Request | getAttribute, getParameter, getParameterNames, getParameterValues, setAttribute |
2 | response | Subclass of javax.servlet.ServletResponse | Page | Not typically used by JSP page authors |
3 | pageContext | javax.servlet.jsp.PageContext | Page | findAttribute, getAttribute, getAttributesScope, getAttributeNamesInScope, setAttribute |
4 | session | javax.servlet.http.HttpSession | Session | getAttribute, getId, setAttribute |
5 | application | javax.servlet.ServletContext | Application | getAttribute, getMimeType, getRealPath, setAttribute |
6 | out | javax.servlet.jsp.JspWriter | Page | clear, clearBuffer, flush, getBufferSize, getRemaining |
7 | config | javax.servlet.ServletConfig | Page | getInitParameter, getInitParameterNames |
8 | page | java.lang.Object | Page | Not typically used by JSP page authors |
9 | exception | java.lang.Throwable | Page | getMessage, getLocalizedMessage, printStackTrace, toString |