pageContext對象是JSP中pageContext對象的引用。通過pageContext對象,您可以訪問request對象。比如,訪問request對象傳入的查詢字符串,就像這樣:${pageContext.request.queryString}Scope對象pageScope,requestScope,sessionScope,applicationScope變量用來訪問存儲在各個作用域?qū)哟蔚淖兞俊?
edu.jb51.net/jsp/jsp-expression-lang... 2025-5-24