Response_路径_相对路径以及绝对路径
1.相对路径:通过相对路径不可以确定唯一资源
如:./index.html
不以/开头,以.开头路径
规则:找到当前资源和目标资源之间的相对位置关系
./当前路径
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Title</title> </head> <body> <h1>找到当前资源和目标资源的相对位置关系</h1> <p> 当前资源:location.html http://localhost/location.html </p> <p> 目标资源: http://localhost/responseDemo2 </p> <a href="./responseDemo2"> responseDemo02 </a> </body> </html>
../:回退以及目录
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Title</title> </head> <body> <h1>找到当前资源和目标资源的相对位置关系</h1> <p> 当前资源:location2.html http://localhost/htmls/location2.html </p> <p> 目标资源: http://localhost/responseDemo2 </p> <a href="../responseDemo2"> responseDemo02 </a> </body> </html>
2绝对路径:通过绝对路径可以确定唯一资源
如:http://localhost/responseDemo2
以/开头路径
html页面:
![复制代码](https://common.cnblogs.com/images/copycode.gif)
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Title</title> </head> <body> <h1>绝对路径</h1> <a href="/requestDemo2"> requestDemo2 </a> </body> </html>
![复制代码](https://common.cnblogs.com/images/copycode.gif)
内部使用:
![复制代码](https://common.cnblogs.com/images/copycode.gif)
@WebServlet("/responseDemo3") public class ResponseDemo3 extends HttpServlet { protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { //转发 request.getRequestDispatcher("/responseDemo2").forward(request,response); } protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { this.doPost(request, response); } }
![复制代码](https://common.cnblogs.com/images/copycode.gif)
规则:判断定义的路径是给谁用的?判断请求将来从哪发出
给客户端浏览器使用:需要加虚拟目录(项目的访问路径)
建议虚拟目录动态获取:request.getContextPath()
给服务器使用:不需要加虚拟目录
标签:http,路径,request,绝对路径,html,相对路径,Response,资源 From: https://www.cnblogs.com/qihaokuan/p/16963060.html