2020-11-05马海平
课堂笔记: 注册页面
request.setCharacterEncoding("UTF-8");
response.setCharacterEncoding("UTF-8")
String username = request.getParameter("username");
String password = request.getParameter("password");
String gender = request.getParameter("gender");
DBHelper dbhelper = new DBHelper();
int i =dbhelper.save(username,password,gender);
if(i > 0) {
request.getSession().setAttribute("msg","注册成功");
response.sendRedirect("denglu.jsp");
}else{
request.getSession().setAttribute("msg","注册失败");
response.sendRedirect("denglu.jsp");
}
rejiester.jsp文件的建立
<%@ page language="java" contentType="text/html; charset=UTF-8"
<form action="dorejiester.jsp" method=" post" >
用户名:<input type="text" name="username" placeholder="请输入用户名" />
密 码:<input type="password" name="password" placeholder="请输入密码"/>
性别:<input type="radio" name="gender" value="男"/>男
<input type="submit" value="注册" />
public int save(String userName,String passWord,String gender ) throws Exception {
//1加载数据库驱动
Class.forName("com.mysql.jdbc.Driver");
//2创建数据库链接
Connection connection = DriverManager.getConnection("jdbc:mysql://localhost:3306/db_user","root","");
//3拼写sql语句
String sql = "INSERT INTO t_user (userName,`passWord`,gender)VALUES(?,?,?)";
心得体会:今天老师给我们讲述了一些知识,学习到了许多以前没学过的专业知识与知识的应用,我们应该牢记必须刻苦努力加强记忆,时时刻刻
都得加强练习。
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