JavaWeb Servlet开发注册页面实例


Posted in Java/Android onApril 11, 2022

Servlet-注册页面

环境准备:

本文所用到环境如下:

软件:Eclipse(2018)

服务器:Tomcat 9

JavaWeb Servlet开发注册页面实例

JavaWeb Servlet开发注册页面实例

JavaWeb Servlet开发注册页面实例

JavaWeb Servlet开发注册页面实例

JavaWeb Servlet开发注册页面实例

JavaWeb Servlet开发注册页面实例

JavaWeb Servlet开发注册页面实例

JavaWeb Servlet开发注册页面实例

JavaWeb Servlet开发注册页面实例

JavaWeb Servlet开发注册页面实例

在index.jsp添加相关的代码

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>

<h1>用户注册</h1>
<div>
    <form action="RegisterServlet" method="get">
    <table>
    <tr>
    <td>登录名:</td> 
    <td><input type="text" name="username" required> (可包含a-z、0-9和下划线)</td>
    </br>
    <tr>
    <td>密码:</td> 
    <td><input type="password" name="password" required> (至少包含6个字符)</td>
    </tr>
    <tr>
    <td>再次输入密码:</td> 
    <td><input type="password" name="confirmPassword" required></td>
    </tr>
    <tr>
    <td>电子邮箱:</td> 
    <td><input type="text" id="email" name="youxaing" required> (必须包含@字符)</td>
    </tr>
    <tr>
    <td>性别:</td> 
    <td><input type="radio" name="gender" value="男" required>男
        <input type="radio" name="gender" value="女" required>女</td>
    </tr>
     <td>头像:</td> 
    <td><input type="file" name="bfile" value="选择文件" accept="image/*" ></td>
    </tr>
     <td>爱好:</td> 
    <td>
    <p>
   	  <input type="checkbox" name="hobby" value="运动"> 运动
      <input type="checkbox" name="hobby" value="聊天" > 聊天
      <input type="checkbox" name="hobby" value="玩游戏" > 玩游戏</p>
      
    </td>
    </tr>
   
     </tr>
     <td>喜欢的城市:</td> 
    <td>
         <select name="selectList">
         <option>[请选择]</option>
         <option>北海</option>
         <option>海南</option>
         <option>重庆</option>
         <option>杭州</option>
         <option>深圳</option>
         <option>成都</option>
     	 </select>
    </tr>    
    </table>
    <div>
    <p>
       <input type="submit" value="提交">
       <input type="reset" value="重置">
     </p>
     </div>
    </form>
</div>

</body>
</html>

效果为:

JavaWeb Servlet开发注册页面实例

JavaWeb Servlet开发注册页面实例

JavaWeb Servlet开发注册页面实例

JavaWeb Servlet开发注册页面实例

JavaWeb Servlet开发注册页面实例

JavaWeb Servlet开发注册页面实例

Login_Servlet.java代码

package onlyxiu_ceshi.com;

import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

/**
 * Servlet implementation class Login_Servlet
 */
@WebServlet("/Login_Servlet")
public class Login_Servlet extends HttpServlet {
	private static final long serialVersionUID = 1L;
       
    /**
     * @see HttpServlet#HttpServlet()
     */
    public Login_Servlet() {
        super();
        // TODO Auto-generated constructor stub
    }

	/**
	 * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
	 */
	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		// TODO Auto-generated method stub
//		response.getWriter().append("Served at: ").append(request.getContextPath());
		
		
		 request.setCharacterEncoding("UTF-8");//处理乱码问题
	        response.setCharacterEncoding("UTF-8");//处理乱码问题
	        //获得用户在register界面提交的数据
	        String username = request.getParameter("username");
	        String password = request.getParameter("password");
	        String confirmPassword = request.getParameter("confirmPassword");
	        String gender = request.getParameter("gender");
	        String youxaing = request.getParameter("youxaing");
	        String bfile = request.getParameter("bfile");
	        String hobby  = request.getParameter("hobby");
	        String selectList = request.getParameter("selectList");
	        //判断密码是否正确
	        if (password.equals(confirmPassword)){//如果密码相同,重定向到成功界面
	            HttpSession session = request.getSession();//获取session
	            session.setAttribute("session_username",username);
	            session.setAttribute("session_password",password);
	            session.setAttribute("session_gender",gender);
	            session.setAttribute("session_youxaing",youxaing);
	            session.setAttribute("session_bfile",bfile);
	            session.setAttribute("session_hobby", hobby);
	            session.setAttribute("session_selectList",selectList);
	           
	            request.getRequestDispatcher("SuccessServlet").forward(request, response);
	          //  response.sendRedirect("register_login.jsp");//重定向到成功页面
	        }else {//如果密码不同,通知用户密码输入不一样
	            request.getSession().setAttribute("passwordError","yes");
	            request.getRequestDispatcher("ErrorServlet").forward(request, response);
//	            response.sendRedirect("register.jsp");//重定向到登陆界面
	        }
	    }
	

	/**
	 * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
	 */
	protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		// TODO Auto-generated method stub
		doGet(request, response);
	}

}

配置web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://xmlns.jcp.org/xml/ns/javaee" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd" id="WebApp_ID" version="3.1">
  <display-name>onlyxiu_ceshi</display-name>
  <welcome-file-list>
    <welcome-file>index.html</welcome-file>
    <welcome-file>index.htm</welcome-file>
    <welcome-file>index.jsp</welcome-file>
    <welcome-file>default.html</welcome-file>
    <welcome-file>default.htm</welcome-file>
    <welcome-file>default.jsp</welcome-file>
  </welcome-file-list>
  
  <servlet>
    <servlet-name>Login_Servlet</servlet-name>
    <servlet-class>onlyxiu_ceshi.com</servlet-class>
  </servlet>
  <servlet-mapping>
    <servlet-name>Login_Servlet</servlet-name>
    <url-pattern>/onlyxiu_ceshi/Login_Servlet</url-pattern>
  </servlet-mapping>
  
</web-app>

JavaWeb Servlet开发注册页面实例

ErrorServlet.java的代码

package onlyxiu_ceshi.com;

import java.io.IOException;
import java.io.PrintWriter;
import java.util.Arrays;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

/**
 * Servlet implementation class ErrorServlet
 */
@WebServlet("/ErrorServlet")
public class ErrorServlet extends HttpServlet {
	private static final long serialVersionUID = 1L;
       
    /**
     * @see HttpServlet#HttpServlet()
     */
    public ErrorServlet() {
        super();
        // TODO Auto-generated constructor stub
    }

	/**
	 * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
	 */
	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		// TODO Auto-generated method stub
//		response.getWriter().append("Served at: ").append(request.getContextPath());
		
		response.setHeader("Content-type","text/html; charset=UTF-8");
		String username = request.getParameter("username");
		String password = request.getParameter("password");
		String gender = request.getParameter("gender");
		String youxaing = request.getParameter("youxaing");
		String bfile = request.getParameter("bfile");
		String hobby = request.getParameter("hobby");
		String selectList = request.getParameter("selectList");
		PrintWriter out = response.getWriter();
		out.print("<h1>用户注册信息</h1>");
		out.print("用户名:\n"+username+"<br>");
		out.print("密码:"+password+"<br>");
		out.print("电子邮箱:"+youxaing+"<br>");
		out.print("性别:"+gender+"<br>");
		out.print("头像:"+bfile+"<br>");
		out.print("爱好:"+hobby+"<br>");
		out.print("喜欢的城市:"+selectList+"<br>");
//		out.print("登陆失败");
		out.close();
	}

	/**
	 * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
	 */
	protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		// TODO Auto-generated method stub
//		doGet(request, response);
	}

}

SuccessServlet.java

package onlyxiu_ceshi.com;

import java.io.IOException;
import java.io.PrintWriter;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

/**
 * Servlet implementation class SuccessServlet
 */
@WebServlet("/SuccessServlet")
public class SuccessServlet extends HttpServlet {
	private static final long serialVersionUID = 1L;
       
    /**
     * @see HttpServlet#HttpServlet()
     */
    public SuccessServlet() {
        super();
        // TODO Auto-generated constructor stub
    }

	/**
	 * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
	 */
	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		// TODO Auto-generated method stub
//		response.getWriter().append("Served at: ").append(request.getContextPath());
		response.setHeader("Content-type","text/html; charset=UTF-8");
		String username = request.getParameter("username");
		String password = request.getParameter("password");
		String gender = request.getParameter("gender");
		String youxaing = request.getParameter("youxaing");
		String bfile = request.getParameter("bfile");
		String hobby = request.getParameter("hobby");
		String selectList = request.getParameter("selectList");
		PrintWriter out = response.getWriter();
		out.print("<h1>用户注册信息</h1>");
		out.print("用户名:\n"+username+"<br>");
		out.print("密码:"+password+"<br>");
		out.print("电子邮箱:"+youxaing+"<br>");
		out.print("性别:"+gender+"<br>");
		out.print("头像:"+bfile+"<br>");
		out.print("爱好:"+hobby+"<br>");
		out.print("喜欢的城市:"+selectList+"<br>");
//		out.println("登陆成功");
		out.close();
	}

	/**
	 * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
	 */
	protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		// TODO Auto-generated method stub
//		doGet(request, response);
	}

}

JavaWeb Servlet开发注册页面实例

JavaWeb Servlet开发注册页面实例

Java/Android 相关文章推荐
Spring boot应用启动后首次访问很慢的解决方案
Jun 23 Java/Android
详解Java ES多节点任务的高效分发与收集实现
Jun 30 Java/Android
Springboot配置suffix指定mvc视图的后缀方法
Jul 03 Java/Android
springboot如何接收application/x-www-form-urlencoded类型的请求
Nov 02 Java/Android
Jpa Specification如何实现and和or同时使用查询
Nov 23 Java/Android
关于@OnetoMany关系映射的排序问题,使用注解@OrderBy
Dec 06 Java/Android
剑指Offer之Java算法习题精讲二叉树专项训练
Mar 21 Java/Android
MybatisPlus EntityWrapper如何自定义SQL
Mar 22 Java/Android
Spring Boot DevTools 全局配置学习指南
Mar 31 Java/Android
Java 数据结构七大排序使用分析
Apr 02 Java/Android
Java中Quartz高可用定时任务快速入门
Apr 03 Java/Android
Java界面编程实现界面跳转
Jun 16 Java/Android
Java中的继承、多态以及封装
JAVA长虹键法之建造者Builder模式实现
Apr 10 #Java/Android
SpringCloud项目如何解决log4j2漏洞
Apr 10 #Java/Android
零基础学java之循环语句的使用
Apr 10 #Java/Android
零基础学java之带参数以及返回值的方法
Apr 10 #Java/Android
零基础学java之带返回值的方法的定义和调用
Apr 10 #Java/Android
零基础学java之方法的定义与调用详解
Apr 10 #Java/Android
You might like
cmd下运行php脚本
2008/11/25 PHP
初学CAKEPHP 基础教程
2009/11/02 PHP
php输出控制函数和输出函数生成静态页面
2019/06/27 PHP
PHP使用HTML5 FormData对象提交表单操作示例
2019/07/02 PHP
PHP实现笛卡尔积算法的实例讲解
2019/12/22 PHP
jQuery(1.3.2) 7行代码搞定跟随屏幕滚动的层
2009/05/21 Javascript
javascript游戏开发之《三国志曹操传》零部件开发(一)让静态人物动起来
2013/01/23 Javascript
在图片上显示左右箭头类似翻页的代码
2013/03/04 Javascript
js弹出层(jQuery插件形式附带reLoad功能)
2013/04/12 Javascript
jquery设置按钮停顿3秒不可用
2014/03/07 Javascript
使用script的src实现跨域和类似ajax效果
2014/11/10 Javascript
详解Javascript动态操作CSS
2014/12/08 Javascript
javascript+html5实现绘制圆环的方法
2015/07/28 Javascript
Jquery轮播效果实现过程解析
2016/03/30 Javascript
canvas实现图像放大镜
2017/02/06 Javascript
vue页面使用阿里oss上传功能的实例(一)
2017/08/09 Javascript
JavaScript实现滑动导航栏效果
2017/08/30 Javascript
vue组件父与子通信详解(一)
2017/11/07 Javascript
three.js实现3D模型展示的示例代码
2017/12/31 Javascript
jquery实现点击a链接,跳转之后,该a链接处显示背景色的方法
2018/01/18 jQuery
微信小程序实现自定义modal弹窗封装的方法
2018/06/15 Javascript
Vue.set 全局操作简单示例
2019/09/19 Javascript
Python中的is和==比较两个对象的两种方法
2017/09/06 Python
python实现求最长回文子串长度
2018/01/22 Python
python清除函数占用的内存方法
2018/06/25 Python
tensorflow实现逻辑回归模型
2018/09/08 Python
Python设计模式之职责链模式原理与用法实例分析
2019/01/11 Python
Python爬取知乎图片代码实现解析
2019/09/17 Python
8种常用的Python工具
2020/08/05 Python
python+pygame实现坦克大战小游戏的示例代码(可以自定义子弹速度)
2020/08/11 Python
Python里面search()和match()的区别
2016/09/21 面试题
好军嫂事迹材料
2014/01/15 职场文书
法人代表身份证明书及授权委托书
2014/09/16 职场文书
先进个人主要事迹怎么写
2015/11/04 职场文书
详解Java线程池是如何重复利用空闲线程的
2021/06/26 Java/Android
vue3 自定义图片放大器效果的示例代码
2022/07/23 Vue.js