java 加载 JSP 页面时如何获取 HttpServletRequest 对象？
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How do I get a HttpServletRequest object when loading a JSP page?
提问by mpark
I have a HTML page that allows me to use JSP code. I was able to print some output using some basic Java. But How do I obtain a HttpServletRequest object so I can print some of its properties onto the HTML page?
我有一个允许我使用 JSP 代码的 HTML 页面。我能够使用一些基本的 Java 打印一些输出。但是如何获取 HttpServletRequest 对象以便我可以将其某些属性打印到 HTML 页面上？
采纳答案by Juvanis
Just use the requestvariable (HttpServletRequestinstance). It is one of implicit objectsin JSP. Check properties here: http://docs.oracle.com/javaee/6/api/javax/servlet/http/HttpServletRequest.html
只需使用request变量（HttpServletRequest实例）。它是 JSP 中的隐式对象之一。在此处检查属性：http: //docs.oracle.com/javaee/6/api/javax/servlet/http/HttpServletRequest.html
<%
request.getHeader();
%>
