servlet访问路径测试(path)

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1、getContextPath：站点名[/context]（Web应用的入口点名字）

2、getServletPath：servlet类的对应映射路径[/resource]

3、getRequestURI：uri地址 = [/context] + [/resource]

4、getRequestURL：protocol://IP adderss:[port][/context][/resource][/?query string]

5、代码显例如下：

package com.tiger.path.action;import java.io.IOException;import java.io.PrintWriter;import javax.servlet.ServletException;import javax.servlet.annotation.WebServlet;import javax.servlet.http.*;/** * 结论：在jsp的标签中写入下面一段代码，之后所有链接都可以使用绝对路劲，像这样 * " /> * 测试访问路径,测试输出结果如下： * ContextPath = /Struts_0040_Path    * ServeltPath = /path.do    * RquestURI = /Struts_0040_Path/path.do    * RquestURL = http://localhost:8080/Struts_0040_Path/path.do    * Scheme = http    * ServerName = localhost    * ServerPort = 8080 * @author tiger * @time 2017年9月7日 */@WebServlet("/path.do")public class Path extends HttpServlet {private static final long serialVersionUID = 1L;           public Path() { }protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {PrintWriter out = response.getWriter();out.append("   ContextPath = ").append(request.getContextPath()).append("
").append("   ServeltPath = ").append(request.getServletPath()).append("
").append("   RquestURI = ").append(request.getRequestURI()).append("
").append("   RquestURL = ").append(request.getRequestURL()).append("
").append("   Scheme = ").append(request.getScheme()).append("
").append("   ServerName = ").append(request.getServerName()).append("
").append("   ServerPort = ").append(String.valueOf(request.getServerPort())+"
");}}

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