[转]JSP中与路径相关的常用的几个方法_jsp的关联路径-优快云博客

本文链接：https://blog.youkuaiyun.com/ideaseek/article/details/5917608

虽然很简单，但是很全，有时候很久没用好了还真是记不住，所以转载过来了。

http:/localhost/123/jsp/test.jsp:

1:

2:

3:

4:

5:

6:

7:

8:

   9:  DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">

  10:  <html:html lang="true">

  11:    <head>

  12:      <html:base />

13:

  14:      <title>test.jsptitle>

15:

  16:      <meta http-equiv="pragma" content="no-cache">

  17:      <meta http-equiv="cache-control" content="no-cache">

  18:      <meta http-equiv="expires" content="0">

  19:      <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">

  20:      <meta http-equiv="description" content="This is my page">

21:

24:

  25:    head>

26:

  27:    <body>

  28:  <p>

  29:      <h2>application - javax.servlet.ServletContexth2>

  30:      application.getRealPath("/")<br>

  31:      application.getMajorVersion() - <br>

  32:      application.getMimeType("txt") - <br>

  33:      application.getServerInfo() - <br>

  34:      application.getServletContextName() - <br>

  35:      application.getContext()

  36:  p>

37:

  38:  <p>

  39:      <h2>config - javax.servlet.ServletConfigh2>

  40:      config.getServletName() - <br>

  41:      config.getServletContext()<br>

  42:  p>

43:

  44:  <p>

  45:      <h2>pageContext - javax.servlet.jsp.PageContexth2>

  46:      pageContext.getRequest()（JSP中的requset隐式对象）<br>

  47:      pageContext.getResponse()（JSP中的response隐式对象）<br>

  48:      pageContext.getServletConfig()（JSP中的config隐式对象）<br>

  49:      pageContext.getServletContext()（JSP中的application隐式对象）<br>

  50:      pageContext.getException()（JSP中的exception隐式对象）<br>

  51:      pageContext.getSession()（JSP中的session隐式对象）<br>

  52:      pageContext.getOut()（JSP中的out隐式对象）

  53:  p>

54:

  55:  <p>

  56:      <h2>request - javax.servlet.http.HttpServletRequesth2>

  57:      request.getLocalAddr() - <br>

  58:      request.getServletPath() - <br>

  59:      request.getContextPath() - <br>

  60:      request.getLocalName() - <br>

  61:      request.getLocalPort() - <br>

  62:      request.getPathInfo() - <br>

  63:      request.getProtocol() - <br>

  64:      request.getQueryString() - <br>

  65:      request.getRemoteAddr() - <br>

  66:      request.getRemoteHost() - <br>

  67:      request.getRemotePort() - <br>

  68:      request.getRemoteUser() - <br>

  69:      request.getRequestedSessionId():<br>

  70:      request.getRequestURI() - <br>

  71:      request.getRequestURL() -

  72:  p>

73:

  74:  <p>

  75:      <h2>session - javax.servlet.http.HttpSessionh2>

  76:      session.getServletContext()

  77:  p>

78:

  79:    body>

  80:  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