创新年报平台系统完成过程遇到的问题

Posted 2021-02-06 -2016

1.完成过程遇到几个问题：

1.1 用js实现注册手机号、邮箱、确认密码验证

首先要确定验证的正则表达式，网上有很多版本，其次难住的地方是无法引用，因为对js不熟悉，所以犯了很多”愚蠢“的错误。比如，js应写在body外面；值的传递是通过是value来进行的；引用onblur事件来触发函数。举个例子：

手 机 号：<input class="layui-btn layui-btn-primary layui-btn-radius" type="text" name="telephone" id="telephone" onblur="upperCase(this.value)" /><br>
			

　　script对应的代码 ：

<script type="text/javascript">
		function upperCase(val){
   			//var val=document.getElementById(phone).value;
   			 var reg=/^1[345678]d{9}$/;
    		if (val==‘‘) {
				alert("请输入手机号!")
    		}else if(reg.test(val)){
    		}else{
			alert("手机号输入错误，请重新输入！!")
    	}  
}
</script>

　　2.session的使用

实现创新年报搜索相关平台信息时用到了session传值

基本思路为：用list来传值平台类的属性值，用session的setAttribute来存一个对象，在jsp中用getAttribute来读取。举个例子：

servlet类

protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
		// TODO Auto-generated method stub
		req.setCharacterEncoding("utf-8");
		String condition1 = req.getParameter("condition1");
		String content1 = req.getParameter("content1");
		String sql = "select PId,Pname,Pnum,approval_num,techField from platform where "+condition1+" like ‘%"+content1+"%‘";
		Connection conn = DBUtil.getConnection();
		PreparedStatement prep = null;
		ResultSet rs = null;
		List<platform> list = new ArrayList<platform>(); 
		HttpSession session = req.getSession();
		try {
			prep = conn.prepareStatement(sql);
			rs = prep.executeQuery();
			while(rs.next()) {
				platform platform = new platform();
				platform.setPId(rs.getInt(1));
				platform.setPname(rs.getString(2));
				platform.setPnum(rs.getDate(3));
				platform.setApproval_num(rs.getString(4));
				platform.setTechField(rs.getString(5));
				list.add(platform);
			}
			session.setAttribute("platforms", list);
		} catch (SQLException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		resp.sendRedirect("/Innovation/NewSearch2.jsp");
	}