JavaWeb之Servlet注册页面的实现示例

更新时间：2022年04月11日 11:31:55 作者：黑桃鱼

注册页面是很多网站都会是使用的到，本文主要介绍了JavaWeb之Servlet注册页面的实现示例，文中通过示例代码介绍的非常详细，具有一定的参考价值，感兴趣的小伙伴们可以参考一下

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

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：

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>

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);
	}

}

到此这篇关于JavaWeb之Servlet注册页面的实现示例的文章就介绍到这了,更多相关Servlet注册页面内容请搜索脚本之家以前的文章或继续浏览下面的相关文章希望大家以后多多支持脚本之家！

您可能感兴趣的文章:

Java 数据结构与算法系列精讲之贪心算法
我们可能在好多地方都会听到贪心算法这一概念，并且它的算法思想也比较简单就是说算法只保证局部最优，进而达到全局最优。但我们实际编程的过程中用的并不是很多，究其原因可能是贪心算法使用的条件比较苛刻，所要解决的问题必须满足贪心选择性质
2022-02-02
java Swing实现五子棋游戏
这篇文章主要为大家详细介绍了java Swing实现五子棋游戏，文中示例代码介绍的非常详细，具有一定的参考价值，感兴趣的小伙伴们可以参考一下
2020-12-12
java 字符串相减(很简单的一个方法)
本篇文章是对java中关于字符串相减的一个简单的方法进行了介绍，需要的朋友参考下
2013-07-07
JavaWeb Struts文件上传功能实现详解
这篇文章主要为大家详细介绍了JavaWeb Struts文件上传功能实现过程，思路清晰，供大家参考，感兴趣的小伙伴们可以参考一下
2016-06-06
解决JTable排序问题的方法详解
本篇文章是对JTable排序问题的方法进行了详细的分析介绍，需要的朋友参考下
2013-05-05
Spring MVC--拦截器实现和用户登陆例子
本文主要介绍了Spring MVC--拦截器实现和用户登陆例子，具有很好的参考价值，下面跟着小编一起来看下吧
2017-03-03
详解java爬虫jsoup解析多空格class数据
在本篇内容中小编给大家分享了java爬虫jsoup怎么解析多空格class数据的方法和技巧，需要的朋友们跟着学习下。
2018-12-12
IDEA Ui设计器JFormDesigner 永久激活插件+注册机(亲测一直在用)
这篇文章主要介绍了IDEA Ui设计器JFormDesigner 永久激活----插件+注册机自己一直在用的版本和注册机,非常不错，本文通过图文并茂的形式给大家介绍的非常详细，需要的朋友可以参考下
2022-08-08
10张图总结出并发编程最佳学习路线
这篇文章主要介绍了并发编程的最佳学习路线，文中通过图片介绍的非常详细，对大家的学习或者工作具有一定的参考学习价值，需要的朋友们下面随着小编来一起学习学习吧
2021-08-08
Java中生成随机数的实现方法总结
这篇文章主要介绍了Java中生成随机数的实现方法总结,其中多线程并发的实现方式尤为exciting,需要的朋友可以参考下
2015-11-11

JavaWeb之Servlet注册页面的实现示例

Servlet-注册页面

相关文章

最新评论

大家感兴趣的内容

最近更新的内容

常用在线小工具