e1061. getting a request header in a jsp page.txt

来自「这里面包含了一百多个JAVA源文件」· 文本 代码 · 共 16 行

A JSP page can access the information in the request header by using the implicit object request. This example retrieves a few items in the request header: 
    The request method is <%= request.getMethod() %>
    The request URI is <%= request.getRequestURI() %>
    The request protocol is <%= request.getProtocol() %>
    The browser is <%= request.getHeader("user-agent") %>

This example retrieves all the items in the request header: 
    <%
        java.util.Enumeration names = request.getHeaderNames();
        while (names.hasMoreElements()) {
            String name = (String)names.nextElement();
            out.println(name+": "+request.getHeader(name));
        }
    %>

See also eX X.