十日冲刺之第四日

燃尽图

昨天进行系统首页和用户注册登录的编写

今天进行注册中邮箱发送与激活用户

验证码

<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
  	<script type="text/javascript">
  		function changeImg(img){
  			img.src = img.src+"?time="+new Date().getTime();
  		}
  		function checkForm(){
  			var canSub = true;
  			//1.非空校验
  			canSub = checkNull("username","用户名不能为空!") && canSub;
  			canSub = checkNull("password","密码不能为空!") && canSub;
  			canSub = checkNull("password2","确认密码不能为空!") && canSub;
  			canSub = checkNull("nickname","昵称不能为空!") && canSub;
  			canSub = checkNull("email","邮箱不能为空!") && canSub;
  			canSub = checkNull("valistr","验证码不能为空!") && canSub;
  			
  			//2.两次密码一致的校验
  			var psw1 = document.getElementsByName("password")[0].value;
  			var psw2 = document.getElementsByName("password2")[0].value;
  			if(psw1 != psw2){
  				document.getElementById("password2_msg").innerHTML = "<font color='red'>两次密码不一致!</font>";
  				canSub = false;
  			}
  			
  			//3.邮箱格式校验:sssss@xxx.xxx.xxx.xxx 
			var email = document.getElementsByName("email")[0].value;
			if( email!= null && email != "" && !/^w+@w+(.w+)+$/.test(email)){
				document.getElementById("email_msg").innerHTML = "<font color='red'>邮箱格式不正确!</font>";
  				canSub = false;
			}
  			
  			return canSub;
  		
  		}
  		function checkNull(name,msg){
  			document.getElementById(name+"_msg").innerHTML = "";
  			var objValue = document.getElementsByName(name)[0].value;
  			if(objValue == null || objValue == ""){
				document.getElementById(name+"_msg").innerHTML = "<font color='red'>"+msg+"</font>";
  				return false;
  			}
  			return true;
  		}
  	</script>
  </head>
  <body>
  <div align="center" >
  	<h1>Estore注册</h1><hr>
  	<form action="/RegistServlet" method="POST" onsubmit="return checkForm()">
  		<table>
  			<tr>
  				<td>用户名:</td>
  				<td><input type="text" name="username" value="${param.username }"/></td>
  				<td id="username_msg"></td>
  			</tr>
  			<tr>
  				<td>密码:</td>
  				<td><input type="password" name="password"/></td>
  				<td id="password_msg"></td>
  			</tr>
  			<tr>
  				<td>确认密码:</td>
  				<td><input type="password" name="password2"/></td>
  				<td id="password2_msg"></td>
  			</tr>
  			<tr>
  				<td>昵称:</td>
  				<td><input type="text" name="nickname" value="${param.nickname }"/></td>
  				<td id="nickname_msg"></td>
  			</tr>
  			<tr>
  				<td>邮箱:</td>
  				<td><input type="text" name="email" value="${param.email }"/></td>
  				<td id="email_msg"></td>
  			</tr>
  			<tr>
  				<td>验证码:</td>
  				<td><input type="text" name="valistr"/></td>
  				<td id="valistr_msg">${msg }</td>
  			</tr>
  			<tr>
  				<td><input type="submit" value="注册用户"/></td>
  				<td><img src="/ValiImg" onclick="changeImg(this)" style="cursor: pointer;"/></td>
  			</tr>
  			
  		</table>
  	</form>
  	</div>
  </body>
</html>

  

遇到的问题:

抛出错误

The type java.util.Map$Entry cannot be resolved. It is indirectly referenced from required .class files

解决方法:把JDK1.8换成低版本

原文地址:https://www.cnblogs.com/xuemo/p/6854252.html