代码如下：<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%><%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %><%String path = request.getContextPath();String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";%><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">function _check(){ var name=document.getElementById("name").value; var pass=document.getElementById("pass").value; if (name=="" && name==null) { alert("用户名不能为空"); return false; }else if (pass=="" && pass==null) { alert("密码不能为空"); return false; } return true; }${ msg }<%session.setAttribute("msg", "");%>登录用户名:密码:以前也是这样写的可以这次怎么也不调用方法
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