改变Jsp文件后缀

web.xml 配置

<servlet-mapping>
    <servlet-name>ChangSuffix</servlet-name>
    <url-pattern>*.html</url-pattern>
</servlet-mapping>

servlet中的关键代码

String url=request.getRequestURL();  //获取请求的URL
String rooturl=request.getContextPath(); //获取项目的跟路径
url=url.replace(rooturl,"").replaceFirst(".html",".jsp");  //将URL请求路径进行替换
RequestDispatcher rd = request.getRequestDispatcher(url);
rd.forward(request,response); //页面跳转