getRequestUri与getRequestUrl获取相关请求参数的区别

test1.jsp

<a href ="test.jsp?p=pink">跳转到test2</a>

test2.jsp

<%@ page language="java" import="java.util.*" pageEncoding="gb2312"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";

system.out.println("basePath:"+basePath);
system.out.println("<br/>");
system.out.println("getContextPath:"+request.getContextPath());
system.out.println("<br/>");
system.out.println("getServletPath:"+request.getServletPath());
system.out.println("<br/>");
system.out.println("getRequestURI:"+request.getRequestURI());
system.out.println("<br/>");
system.out.println("getRequestURL:"+request.getRequestURL());
system.out.println("<br/>");
system.out.println("getRealPath:"+request.getRealPath("/"));
system.out.println("<br/>");
system.out.println("getServletContext().getRealPath:"+getServletContext().getRealPath("/"));
system.out.println("<br/>");
system.out.println("getQueryString:"+request.getQueryString());
%>

显示结果：

basePath:http://localhost:8080/test/
getContextPath:/test
getServletPath:/test.jsp
getRequestURI:/test/test.jsp
getRequestURL:http://localhost:8080/test/test.jsp
getRealPath:D:\Tomcat 6.0\webapps\test\
getServletContext().getRealPath:D:\Tomcat 6.0\webapps\test\
getQueryString:p=pink