JSP中与路径相关的常用的几个方法
时间：2008-06-29 来源：wataxi
http:/localhost/123/jsp/test.jsp:
<%@ page language="java" pageEncoding="UTF-8"%>
<%@ taglib uri="http://struts.apache.org/tags-bean" prefix="bean" %>
<%@ taglib uri="http://struts.apache.org/tags-html" prefix="html" %>
<%@ taglib uri="http://struts.apache.org/tags-logic" prefix="logic" %>
<%@ taglib uri="http://struts.apache.org/tags-tiles" prefix="tiles" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html:html lang="true">
<head>
<html:base />
<title>test.jsp</title>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
<!--
<link rel="stylesheet" type="text/css" href="styles.css">
-->
</head>
<body>
<p>
<h2>application - javax.servlet.ServletContext</h2>
application.getRealPath("/")<%=application.getRealPath("/") %><br>
application.getMajorVersion() - <%=application.getMajorVersion() %><br>
application.getMimeType("txt") - <%=application.getMimeType("txt") %><br>
application.getServerInfo() - <%=application.getServerInfo() %><br>
application.getServletContextName() - <%=application.getServletContextName() %><br>
application.getContext()
</p>
<p>
<h2>config - javax.servlet.ServletConfig</h2>
config.getServletName() - <%=config.getServletName() %><br>
config.getServletContext()<br>
</p>
<p>
<h2>pageContext - javax.servlet.jsp.PageContext</h2>
pageContext.getRequest()（JSP中的requset隐式对象）<br>
pageContext.getResponse()（JSP中的response隐式对象）<br>
pageContext.getServletConfig()（JSP中的config隐式对象）<br>
pageContext.getServletContext()（JSP中的application隐式对象）<br>
pageContext.getException()（JSP中的exception隐式对象）<br>
pageContext.getSession()（JSP中的session隐式对象）<br>
pageContext.getOut()（JSP中的out隐式对象）
</p>
<p>
<h2>request - javax.servlet.http.HttpServletRequest</h2>
request.getLocalAddr() - <%=request.getLocalAddr() %><br>
request.getServletPath() - <%=request.getServletPath() %><br>
request.getContextPath() - <%=request.getContextPath() %><br>
request.getLocalName() - <%=request.getLocalName() %><br>
request.getLocalPort() - <%=request.getLocalPort() %><br>
request.getPathInfo() - <%=request.getPathInfo() %><br>
request.getProtocol() - <%=request.getProtocol() %><br>
request.getQueryString() - <%=request.getQueryString() %><br>
request.getRemoteAddr() - <%=request.getRemoteAddr() %><br>
request.getRemoteHost() - <%=request.getRemoteHost() %><br>
request.getRemotePort() - <%=request.getRemotePort() %><br>
request.getRemoteUser() - <%=request.getRemoteUser() %><br>
request.getRequestedSessionId():<%=request.getRequestedSessionId() %><br>
request.getRequestURI() - <%=request.getRequestURI() %><br>
request.getRequestURL() - <%=request.getRequestURL() %>
</p>
<p>
<h2>session - javax.servlet.http.HttpSession</h2>
session.getServletContext()
</p>
</body>
</html:html>
客户端显示如下：
application - javax.servlet.ServletContext
application.getRealPath("/")F:\workspace\tomcat\123\
application.getMajorVersion() - 2
application.getMimeType("txt") - null
application.getServerInfo() - Apache Tomcat/5.0.30
application.getServletContextName() - null
application.getContext() config - javax.servlet.ServletConfig config.getServletName() - jsp
config.getServletContext() pageContext - javax.servlet.jsp.PageContext pageContext.getRequest()
pageContext.getResponse()
pageContext.getServletConfig()
pageContext.getServletContext()
pageContext.getException()
pageContext.getSession()
pageContext.getOut() request - javax.servlet.http.HttpServletRequest request.getLocalAddr() - 127.0.0.1
request.getServletPath() - /jsp/test.jsp
request.getContextPath() - /123
request.getLocalName() - 127.0.0.1
request.getLocalPort() - 80
request.getPathInfo() - null
request.getProtocol() - HTTP/1.1
request.getQueryString() - null
request.getRemoteAddr() - 127.0.0.1
request.getRemoteHost() - 127.0.0.1
request.getRemotePort() - 1211
request.getRemoteUser() - null
request.getRequestedSessionId():5AFAE9C0A164621D4F8E0DAF2F253C92
request.getRequestURI() - /123/jsp/test.jsp
request.getRequestURL() - http://localhost/123/jsp/test.jsp session - javax.servlet.http.HttpSession session.getServletContext() 注： http://localhost/123/taglib/html/result.jsp中使用以下方法 request.getServletPath() :返回request的请求路径的相对于应用程序的相对路径 request.getContextPath()返回应用程序上下文相对路径 this.getRealPath(String str)返回UIL中str对应于本地磁盘的绝对路径 request.getLocalAddr() 返回服务器IP地址
application.getMajorVersion() - 2
application.getMimeType("txt") - null
application.getServerInfo() - Apache Tomcat/5.0.30
application.getServletContextName() - null
application.getContext() config - javax.servlet.ServletConfig config.getServletName() - jsp
config.getServletContext() pageContext - javax.servlet.jsp.PageContext pageContext.getRequest()
pageContext.getResponse()
pageContext.getServletConfig()
pageContext.getServletContext()
pageContext.getException()
pageContext.getSession()
pageContext.getOut() request - javax.servlet.http.HttpServletRequest request.getLocalAddr() - 127.0.0.1
request.getServletPath() - /jsp/test.jsp
request.getContextPath() - /123
request.getLocalName() - 127.0.0.1
request.getLocalPort() - 80
request.getPathInfo() - null
request.getProtocol() - HTTP/1.1
request.getQueryString() - null
request.getRemoteAddr() - 127.0.0.1
request.getRemoteHost() - 127.0.0.1
request.getRemotePort() - 1211
request.getRemoteUser() - null
request.getRequestedSessionId():5AFAE9C0A164621D4F8E0DAF2F253C92
request.getRequestURI() - /123/jsp/test.jsp
request.getRequestURL() - http://localhost/123/jsp/test.jsp session - javax.servlet.http.HttpSession session.getServletContext() 注： http://localhost/123/taglib/html/result.jsp中使用以下方法 request.getServletPath() :返回request的请求路径的相对于应用程序的相对路径 request.getContextPath()返回应用程序上下文相对路径 this.getRealPath(String str)返回UIL中str对应于本地磁盘的绝对路径 request.getLocalAddr() 返回服务器IP地址
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