action的路径怎么写

<form id="sform" action="<%=request.getContextPath() %>/Info1Servlet?operate=1" method="post">

问好后面可以增加你要的参数，不要的话就去掉

<form id="sform" action="<%=request.getContextPath() %>/Info1Servlet" method="post">

info1Servlet：是你在web.xml文件配置的路径名

request.getRequestDispatcher（"/工程名/student/info/info1.jsp "）.forward(request, response);