JSP中request（return String）用法详例 ，需要的朋友可以参考下。
1.JSP代码 ：
复制代码 代码如下:
<%--
Document : index
Created on : 2009-10-4, 12:45:43
Author : lucifer
--%>
<%@page contentType="text/html" pageEncoding="UTF-8"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>JSP Page</title>
</head>
<body>
get Scheme:
<%=request.getScheme()%>
<br>
get Protocol:
<%=request.getProtocol()%>
<br>
get Remote Address:
<%=request.getRemoteAddr()%>
<br>
get Remote Host:
<%=request.getRemoteHost()%>
<br>
get Server Name:
<%=request.getServerName()%>
<br>
get Server Port:
<%=request.getServerPort()%>
<br>
get Header:
<%=request.getHeader("User-agent")%>
<br>
get Method:
<%=request.getMethod()%>
<br>
get Request's URL:
<%=request.getServletPath()%>
<br>
get Request URI:
<%=request.getRequestURI()%>
<br>
get Request Session ID:
<%=request.getRequestedSessionId()%>
</body>
</html>
2.输出：
get Scheme: http
get Protocol: HTTP/1.1
get Remote Address: 0:0:0:0:0:0:0:1
get Remote Host: 0:0:0:0:0:0:0:1
get Server Name: localhost
get Server Port: 8084
get Header: Mozilla/5.0 (Windows; U; Windows NT 6.0; zh-CN; rv:1.9.1.3) Gecko/20090824 Firefox/3.5.3
get Method: GET
get Request's URL: /Requests.jsp
get Request URI: /TestRequest/Requests.jsp
get Request Session ID: 6EF4EB4A3FE39A15EEBD4D46FBD0BA32
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