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struts2 注册与登录

2017年10月24日 ⁄ 综合 ⁄ 共 15873字 ⁄ 字号 小 中 大 ⁄ 评论关闭

目录结构：



首页：

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    <base href="<%=basePath%>">
    
    <title>My JSP 'index.jsp' starting page</title>
	<meta http-equiv="pragma" content="no-cache">
	<meta http-equiv="cache-control" content="no-cache">
	<meta http-equiv="expires" content="0">    
	<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
	<meta http-equiv="description" content="This is my page">
	<!--
	<link rel="stylesheet" type="text/css" href="styles.css">
	-->
  </head>
  
  <body>
   <a href="login.jsp">登录</a><br>
  </body>
</html>

登录页面：


<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<%@ taglib prefix="s" uri="/struts-tags" %>
<!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>用户登录</title>
</head>
<body>
	<div align="left">
		<s:a href="register.jsp">
			<font color="blue">
				<h5>还未注册？点击注册</h5>
			</font>
		</s:a>
		
	</div>
	<div>
		<s:form action="login" method="post">
			<s:textfield name="username" label="账号"></s:textfield>
			<s:password name="password" label="密码"></s:password>
			<s:submit value="登录"></s:submit>
		</s:form>
	</div>

</body>
</html>

LoginAction：（登录提交到的action） 

package action;

import java.util.Map;

import biz.Users;

import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.ActionSupport;

import dao.DbService;

public class LoginAction extends ActionSupport {
	private static final long serialVersionUID = 1L;
	
	private String username;
	private String password;
	
	public String getUsername() {
		return username;
	}
	public void setUsername(String username) {
		this.username = username;
	}
	public String getPassword() {
		return password;
	}
	public void setPassword(String password) {
		this.password = password;
	}

	@Override
	public String execute() throws Exception {
		DbService dbService = new DbService();
		Users user = new Users();
		user = dbService.hasUser(username, password);
		if(user.getUsername() == null) {
			this.addFieldError(username, "用户或密码不正确！");
			return INPUT;
		} else {
			ActionContext actionContext = ActionContext.getContext();
			Map session = actionContext.getSession();
			session.put("user", user.getUsername());
		}
		return SUCCESS;
	}
}

登录成功页面：

<%@ 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>我的主页</title>
</head>
<body>
	<h4 align="left"><font color="blue">欢迎您，${ user }</font></h4>
</body>
</html>


注册页面：


<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<%@ taglib prefix="s" uri="/struts-tags" %>
<!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>用户注册</title>
<script type="text/javascript">
function shuaxin(obj) {
	var shijian = new Date().getTime();
	obj.src="imageAction.action?d="+shijian;
}
</script>
</head>
<body>
	<h1 align="center">用户注册</h1>
	<div align="center">
		<s:fielderror cssStyle="color:red"></s:fielderror>
		<s:actionerror cssStyle="color:red"/>
		<br />
		<s:form action="register" theme="simple" method="post">
			<table width="50%" border="0" style="width: 50px;height: 342px;">
				<tr>
					<td align="right">账号</td>
					<td width="20">
						<s:textfield name="username"></s:textfield>
					</td>
					<td>
						<font color="red" align="left">
							<h6>*必填</h6>
						</font>
					</td>
				</tr>
				<tr>
					<td align="right">密码</td>
					<td>
						<s:password name="password"></s:password>
					</td>
					<td>
						<font color="red" align="left">
							<h6>*必填</h6>
						</font>
					</td>
				</tr>
				<tr>
					<td align="right">重复密码</td>
					<td>
						<s:password name="repassword"></s:password>
					</td>
					<td>
						<font color="red" align="left">
							<h6>*必填</h6>
						</font>
					</td>
				</tr>
				<tr>
					<td align="right">性别</td>
					<td>
						<input type="radio" name="sex" value="0" checked="checked"/>
						男
						<input type="radio" name="sex" value="1"/>
						女
					</td>
				</tr>
				<tr>
					<td align="right">电子邮箱</td>
					<td>
						<s:textfield name="email"></s:textfield>
					</td>
					<td>
						<font color="red" align="left">
							<h6>*必填</h6>
						</font>
					</td>
				</tr>
				<tr>
					<td align="right">验证码</td>
					<td>
						<s:textfield name="validate"></s:textfield>
					</td>
					<td>
						<img alt="点击图片" src="imageAction" align="left" onclick="shuaxin(this)" />
					</td>
				</tr>
				<tr>
					<td>
						<s:submit value="提交"></s:submit>
					</td>
					<td>
						<s:reset value="重置"></s:reset>
					</td>
				</tr>
			</table>
		</s:form>
	</div>

</body>
</html>

注册提交到的action：

package action;

import java.util.Map;

import biz.Users;

import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.ActionSupport;

import dao.DbService;

public class RegisterAction extends ActionSupport {
	private static final long serialVersionUID = 1L;
	private String username;
	private String password;
	private String repassword;
	private String sex;
	private String email;
	private String validate;	//证实
	public String getUsername() {
		return username;
	}
	public void setUsername(String username) {
		this.username = username;
	}
	public String getPassword() {
		return password;
	}
	public void setPassword(String password) {
		this.password = password;
	}
	public String getRepassword() {
		return repassword;
	}
	public void setRepassword(String repassword) {
		this.repassword = repassword;
	}
	public String getSex() {
		return sex;
	}
	public void setSex(String sex) {
		this.sex = sex;
	}
	public String getEmail() {
		return email;
	}
	public void setEmail(String email) {
		this.email = email;
	}
	public String getValidate() {
		return validate;
	}
	public void setValidate(String validate) {
		this.validate = validate;
	}
	@Override
	public String execute() throws Exception{
		int sex1 = Integer.parseInt(sex);
		Users user = new Users();
		user.setUsername(username);
		user.setPassword(password);
		user.setSex(sex1);
		user.setEmail(email);
		DbService dbService = new DbService();
		if(dbService.hasSameName(username)) {
			this.addFieldError(username, "用户名已存在！");
			return INPUT;
		}
		else {
			dbService.addUser(user);
		}
		return SUCCESS;
	}
	@Override
	public void validate() {
		ActionContext actionContext = ActionContext.getContext();
		Map session = actionContext.getSession();
		if(!repassword.equals(password)) {
			this.addFieldError(repassword, "重复密码不一致！");
		}
		if(!session.get("random").equals(validate)) {
			this.addFieldError(validate, "验证码错误！");
		}
	}
}

获取验证码的action：

package action;

import java.awt.Color;
import java.awt.Font;
import java.awt.Graphics;
import java.awt.image.BufferedImage;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.util.Map;

import javax.imageio.ImageIO;
import javax.imageio.stream.ImageOutputStream;

import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.ActionSupport;

public class ImageAction extends ActionSupport {
	private static final long serialVersionUID = 1L;
	
	private ByteArrayInputStream inputStream;
	
	public String creatRandomString() {
		String str = "";
		for(int i = 0; i < 4 ; i++) {
			str += Integer.toString((new Double(Math.random() * 10)).intValue());
		}
		return str;
	}

	public Color createsRandomColor() {
		int r = (new Double(Math.random() * 256)).intValue();
		int g = (new Double(Math.random() * 256)).intValue();
		int b = (new Double(Math.random() * 256)).intValue();
		return new Color(r, g, b);
	}
	
	public BufferedImage createImage(String str) {
		int width = 60;
		int height = 22;
		BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
		//获取图形上下文
		Graphics g = image.getGraphics();
		//设定背景色
		g.setColor(Color.WHITE);
		g.fillRect(0, 0, width, height);
		//画边框
		g.setColor(Color.black);
		g.drawRect(0, 0, width - 1, height - 1);
		//将认证码显示到图像中
		g.setFont(new Font("Atlantic Inline", Font.PLAIN, 18));
		//使用随便颜色
		g.setColor(this.createsRandomColor());
		//将随机字符串的每个数字分别写到图片上
		g.drawString(Character.toString(str.charAt(0)), 8, 17);
		g.drawString(Character.toString(str.charAt(1)), 20, 17);
		g.drawString(Character.toString(str.charAt(2)), 33, 17);
		g.drawString(Character.toString(str.charAt(3)), 45, 17);
		//图像生效
		g.dispose();
		return image;
	}
	//将图片以字节形式写到InputStream里
	public ByteArrayInputStream createInuptStream() throws Exception {
		//获取随机字符串
		String str = this.creatRandomString();
		BufferedImage image = this.createImage(str);
		//将产生的字符串写入session，供校验时使用;
		ActionContext actionContext = ActionContext.getContext();
		Map session = actionContext.getSession();
		session.put("random", str);
		
		ByteArrayOutputStream output = new ByteArrayOutputStream();
		ImageOutputStream imageOut = ImageIO.createImageOutputStream(output);
		ImageIO.write(image, "JPEG", imageOut);
		imageOut.close();
		ByteArrayInputStream input = new ByteArrayInputStream(output.toByteArray());
		output.close();
		return input;
	}
	@Override
	public String execute() throws Exception {
		setInputStream(createInuptStream());
		return SUCCESS;
	}
	public ByteArrayInputStream getInputStream() {
		return inputStream;
	}

	public void setInputStream(ByteArrayInputStream inputStream) {
		this.inputStream = inputStream;
	}
}

登录验证：

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE validators PUBLIC "-//OpenSymphony Group//XWork Validator 1.0.2//EN"
"http://www.opensymphony.com/xwork/xwork-validator-1.0.2.dtd">

<validators>
    <field name="username">
        <field-validator type="requiredstring">
        <param name="trim">true</param>
            <message>账号不能为空</message>
        </field-validator>
    </field>
    <field name="password">
        <field-validator type="requiredstring">
        <param name="trim">true</param>
            <message>密码不能为空</message>
        </field-validator>
    </field>
</validators>


注册验证：

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE validators PUBLIC "-//OpenSymphony Group//XWork Validator 1.0.2//EN"
"http://www.opensymphony.com/xwork/xwork-validator-1.0.2.dtd">

<validators>
	<field name="username">
		<field-validator type="requiredstring" short-circuit="true">
			<param name="trim">true</param>
			<message>账号不能为空</message>
		</field-validator>
		<field-validator type="stringlength">
			<param name="minLength">6</param>
			<param name="maxLength">20</param>
			<message>账号长度应该在${minLength} ~ ${maxLength}之间</message>
		</field-validator>
	</field>
	<field name="password">
		<field-validator type="requiredstring" short-circuit="true">
			<param name="trim">true</param>
			<message>密码不能为空</message>
		</field-validator>
		<field-validator type="stringlength">
			<param name="minLength">6</param>
			<param name="maxLength">20</param>
			<message>密码长度应该在${minLength} ~ ${maxLength}之间</message>
		</field-validator>
	</field>
	<field name="repassword">
		<field-validator type="requiredstring" short-circuit="true">
			<param name="trim">true</param>
			<message>重复密码不能为空</message>
		</field-validator>
	</field>
	<field name="email">
		<field-validator type="requiredstring" short-circuit="true">
			<param name="trim">true</param>
			<message>邮箱不能为空</message>
		</field-validator>
		<field-validator type="email">
			<message>邮箱不正确</message>
		</field-validator>
	</field>
		<field name="validate">
		<field-validator type="requiredstring">
			<param name="trim">true</param>
			<message>验证码不能为空</message>
		</field-validator>
	</field>
</validators>

注册成功：



<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<%@ taglib prefix="s" uri="/struts-tags" %>
<!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>注册成功</title>
<SCRIPT type="text/javascript">
	var secs = 5;//倒计时的秒数
	var URL;
	function Load(url) {
		URL = url;
		for(var i = secs; i >= 0; i--) {
			window.setTimeout('doUpdate(' +i+ ')',(secs - i)*1000);
		}
	}
	function doUpdate(num) {
		document.getElementById('ShowDiv').innerHTML = '将在' + num +'秒后自动跳转到登录页面';
		if(num == 0) {
			windows.location = URL;
		}
	}
</SCRIPT>
</head>
<body>
	<center>
		<h1>
			<font color="red" align="center">恭喜您，注册成功！</font>
		</h1>
		<br/>
		<div id="ShowDiv">
			<script type="text/javascript">
				Load("http://localhost:8080/Struts 2login/login.jsp");
			</script>
			<s:a href="/login.jsp">
				<font color="blue">
					<h5>手动登录？</h5>
				</font>
			</s:a>
		</div>
	</center>
</body>
</html>


附上其余代码：

web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" id="WebApp_ID" version="3.0">
  <display-name>LoginDemo1</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>
  
    <filter>
        <filter-name>struts2</filter-name>
        <filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>
    </filter>

    <filter-mapping>
        <filter-name>struts2</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>
</web-app>


struts.xml 

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE struts PUBLIC
    "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
    "http://struts.apache.org/dtds/struts-2.0.dtd">
<struts>


	<constant name="struts.i18n.encoding" value="utf-8" />
	<package name="Struts 2login" namespace="/" extends="struts-default">
		<action name="register" class="action.RegisterAction">
			<result name="success">/register_success.jsp</result>
			<result name="input">/register.jsp</result>
		</action>
		
		<action name="login" class="action.LoginAction">
			<result name="success" type="redirect">
			/login_success.jsp
			</result>
			<result name="input">
			/login.jsp
			</result>
		</action>
		
		<action name="imageAction" class="action.ImageAction">
			<result type="stream">
				<param name="contentType">image/jpeg</param>
				<param name="inputName">inputStream</param>
			</result>
		</action>
	</package>


</struts>

entity：

package biz;

public class Users {
	private int userid;
	private String username;
	private String password;
	private int sex;
	private String email;
	public int getUserid() {
		return userid;
	}
	public void setUserid(int userid) {
		this.userid = userid;
	}
	public String getUsername() {
		return username;
	}
	public void setUsername(String username) {
		this.username = username;
	}
	public String getPassword() {
		return password;
	}
	public void setPassword(String password) {
		this.password = password;
	}
	public int getSex() {
		return sex;
	}
	public void setSex(int sex) {
		this.sex = sex;
	}
	public String getEmail() {
		return email;
	}
	public void setEmail(String email) {
		this.email = email;
	}
}

DbConnection 

package dao;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;

public class DbConnection {
	
	static {
		try {
			Class.forName("com.mysql.jdbc.Driver");
		} catch (ClassNotFoundException e) {
			e.printStackTrace();
		}
	}
	
	public static Connection getConnection() {
		Connection con = null;
		String url = "jdbc:mysql://127.0.0.1:3306/test";
		String userName = "root";
		String pwd = "root";
		try {
			con = DriverManager.getConnection(url, userName, pwd);
		} catch (SQLException e) {
			e.printStackTrace();
		}
		return con;
	}
	
	public static void closeConnection(ResultSet rs, PreparedStatement ps, Connection conn) {
		if(rs != null) {
			try {
				rs.close();
			} catch (SQLException e) {
				e.printStackTrace();
			}
		}
		if(ps != null) {
			try {
				ps.close();
			} catch (SQLException e) {
				e.printStackTrace();
			}
		}
		if(conn != null) {
			try {
				conn.close();
			} catch (SQLException e) {
				e.printStackTrace();
			}
		}
		
	}
}

DbService

package dao;

import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;

import biz.Users;

public class DbService {
	public void addUser(Users user) {
		Connection connection = DbConnection.getConnection();
		PreparedStatement ps = null;
		String sql = "insert into users (username,password,sex,email) values(?,?,?,?)";
		
		try {
			ps = connection.prepareStatement(sql);
			ps.setString(1, user.getUsername());
			ps.setString(2, user.getPassword());
			ps.setInt(3, user.getSex());
			ps.setString(4, user.getEmail());
			ps.executeUpdate();
		} catch (SQLException e) {
			e.printStackTrace();
		}
		
	}
	
	public Users hasUser(String username, String password) {
		Users user = new Users();
		Connection connection = DbConnection.getConnection();
		PreparedStatement ps = null;
		ResultSet rs = null;
		String sql = "select * from users where username=? and password=?";
		
		try {
			ps = connection.prepareStatement(sql);
			ps.setString(1, username);
			ps.setString(2, password);
			rs = ps.executeQuery();
			if(rs.next()) {
				user.setPassword(rs.getString("password"));
				user.setUsername(rs.getString("username"));
				user.setSex(rs.getInt("sex"));
				user.setEmail(rs.getString("email"));
				user.setUserid(rs.getInt("user_id"));
			}
		} catch (SQLException e) {
			e.printStackTrace();
		} finally {
			DbConnection.closeConnection(rs, ps, connection);
		}
		
		return user;
	}
	
	public boolean hasSameName(String username) {
		String name = null;
		Connection connection = DbConnection.getConnection();
		PreparedStatement ps = null;
		ResultSet rs = null;
		String sql = "select * from users where username=?";
		try {
			ps = connection.prepareStatement(sql);
			ps.setString(1, username);
			rs = ps.executeQuery();
			if(rs.next()) {
				name = rs.getString("username");
				if(name.equals(username)) {
					return true;
				} else {
					return false;
				}
			}
			else {
				return false;
			}
		} catch (SQLException e) {
			e.printStackTrace();
		} finally {
			DbConnection.closeConnection(rs, ps, connection);
		}
		return false;
	}
}

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