例如有一个用户表，我们要处理 添加，删除 用户以及登录功能
对应的有add.jsp del.jsp login.jsp等
<body> <!-- login.jsp --> <form action="UserServlet?method=login" method="post" id="login"> userName:<input type="text" name="userName"/> passWord:<input type="password" name="passWord"/> submit:<input type="submit" value="submit"/> </form> </body>
<body> <!-- add.jsp --> <form action="UserServlet?method=add" method="post" id="add"> userName:<input type="text" name="userName"/> passWord:<input type="password" name="passWord"/> name:<input type="text" name="name"/> submit:<input type="submit" value="submit"/> </form> </body>
//UserServlet public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { String method = request.getParameter("method"); if(method.equals("login")){ //处理登录 } else if(method.equals("add")){ //处理添加 } }