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019_请求路径

發布時間：2025/5/22 编程问答 39 豆豆

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1. 新建一個名為ReqPath的動態Web工程

2. 編寫index.html

3. 編寫ReqPath.java

package com.lywgames.web.controller;import java.io.IOException; import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse;public class ReqPath extends HttpServlet {private static final long serialVersionUID = 1L;@Overrideprotected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {StringBuffer sb = new StringBuffer();sb.append("<!DOCTYPE html>");sb.append("<html>");sb.append("<head>");sb.append("<meta charset=\"UTF-8\">");sb.append("<title>請求路徑</title>");sb.append("</head>");sb.append("<body>");sb.append("ContextPath = " + req.getContextPath()).append(" ");sb.append("ServletContext ContextPath = " + req.getServletContext().getContextPath()).append(" ");sb.append("RequestURI = " + req.getRequestURI()).append(" ");sb.append("RequestURL = " + req.getRequestURL()).append(" ");sb.append("ServletPath = " + req.getServletPath()).append(" ");sb.append("QueryString = " + req.getQueryString()).append(" ");sb.append("<del>RealPath = " + req.getRealPath("/")).append("</del> ");sb.append("ServletContext ContextPath = " + req.getServletContext().getRealPath("/")).append(" ");sb.append("LocalAddr = " + req.getLocalAddr()).append(" ");sb.append("Locale = " + req.getLocale()).append(" ");sb.append("LocalName = " + req.getLocalName()).append(" ");sb.append("LocalPort = " + req.getLocalPort()).append(" ");sb.append("RemoteAddr = " + req.getRemoteAddr()).append(" ");sb.append("RemoteHost = " + req.getRemoteHost()).append(" ");sb.append("RemotePort = " + req.getRemotePort()).append(" ");sb.append("Protocol = " + req.getProtocol()).append(" ");sb.append("Scheme = " + req.getScheme()).append(" ");sb.append("ServerName = " + req.getServerName()).append(" ");sb.append("ServerPort = " + req.getServerPort()).append(" ");sb.append("ServletContext ServerInfo = " + req.getServletContext().getServerInfo()).append(" ");sb.append("ServletContext ServletContextName = " + req.getServletContext().getServletContextName()).append(" ");sb.append("</body>");sb.append("</html>");resp.setContentType("text/html; charset=UTF-8");resp.getWriter().write(sb.toString());}protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException ,IOException {doGet(req, resp);} }

4. 修改web.xml

5. 運行項目

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路径

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