SERVLET
使用10.0tomcat导入SERVLET得用tomcat/lib里的servlet-api.jar
<url-pattern>/myServlet</url-pattern> 拼接到 `http://ip:port/工程路径`即http://ip:port/工程路径/myServlet
jsp+servlet实现login和register
能传回来数据，login和regiser网页能正常输入
但是不能连接到MySQL和表格的数据进行比对并返回Boolean值
很迷，啊，MySQL连上了，但是不知道怎么设置
登录界面：
注册界面：
这个数据库连接和查询，啊，不是很懂
java的myServlet各种功能有学姐指导还算简单的
代码：
package com;import jakarta.servlet.ServletException;
import jakarta.servlet.http.HttpServlet;
import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpServletResponse;import java.io.IOException;public class MySeverlet extends HttpServlet {@Overrideprotected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {String id=req.getParameter("id");System.out.println("id");}@Overrideprotected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {System.out.println("dopost");}
}
<%--Created by IntelliJ IDEA.User: 86188Date: 2021/7/27Time: 10:02To change this template use File | Settings | File Templates.
--%>
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><title>用户登陆</title><style type="text/css">h1{text-align:left;}h4{text-align:left;color:red;}body{background:url(images/2.jpg)}a{text-decoration:none;font-size:20px;color:black;}a:hover{text-decoration:underline;font-size:24px;color:red;}</style>
</head>
<body>
<form action=http://localhost:8080/web/wdnmd" method="post"><div class="text" style=" text-align:center;">用户登录</div><hr/><table align="center"><tr><td>账号：</td><td><input type="text" name="name" id="name"></td></tr><tr><td>密码：</td><td><input type="password" name="password" id="password"></td></tr><tr><td colspan="1"></td><td><input type="submit" value="登陆"/><input type="reset" value="重置"/><a href="register.jsp" target="_blank">注册</a></td></tr></table>
</form>
</body>
</html>
<%--Created by IntelliJ IDEA.User: 86188Date: 2021/7/27Time: 16:48To change this template use File | Settings | File Templates.
--%>
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<html>
<head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><title>注册页面</title><style type="text/css">h1{text-align:center;}h4{text-align:right;color:red;}body{background:url(images/2.jpg)}</style><script type="text/javascript" src="js/jquery.min.js"></script><script type="text/javascript">$(document).ready(function(){$("#form1").submit(function(){var id=$("#name").val();if(id.length==0){$("#nameError").html("账号不能为空");return false;}var password=$("#password").val();if(password.length==0){$("#passwordError").html("密码不能为空");return false;}var relpassword=$("#relpassword").val();if(relpassword.length==0){$("#relpasswordError").html("确认密码不能为空");return false;}if(password!=relpassword){$("#relpasswordError").html("确认密码输入不正确");return false;}});});</script>
</head>
<body>
<form action="http://localhost:8080/web/wdnmd" method="post" id="form1"><div class="text" style=" text-align:center;">用户注册</div><h4></h4><hr/><table align="center"><tr><td>账号：</td><td><input type="text" name="name" id="name"/><div id="nameError" style="display:inline;color:red;"></div></td></tr><tr><td>密码：</td><td><input type="password" name="password" id="password"><div id="passwordError" style="display:inline;color:red;"></div></td></tr><tr><td>确认密码：</td><td><input type="password" name="relpassword" id="relpassword"><div id="relpasswordError" style="display:inline;color:red;"></div></td></tr><tr><td colspan="1"></td><td><input type="submit" value="注册"/><input type="reset" value="重置"/><a href="login.jsp" target="_blank">登陆</a></td></tr></table>
</form>
</body>
</html>
/>
登陆
