基于Struts2和Hibernate的登录和注册系统

最新推荐文章于 2021-02-04 21:37:00 发布

原创最新推荐文章于 2021-02-04 21:37:00 发布 · 2.3k 阅读

38 ·

CC 4.0 BY-SA版权

文章标签：

#mysql #java #hibernate

本文介绍了一个使用Struts2和Hibernate框架整合的项目示例，详细展示了登录和注册功能的实现过程，包括前端界面设计、后端业务逻辑处理及数据库交互。

项目的文件结构
在这里插入图片描述
login.jsp

<%@page contentType="text/html" pageEncoding="UTF-8"%>
<%@taglib prefix="s" uri="/struts-tags" %>
<html>
	<head>
		<meta http-equiv="Content-Type" content="text/html;charset=UTF-8">
		<title><s:text name="基于SH的应用"></s:text></title>
	</head>
	<body bgcolor="#CCCCFF">
		<s:form action="login" method="post">
			<br><br><br><br><br><br>
			<table border="1" align="center" label="#AABBCCDD">
				<tr>
					<td>
						<s:textfield name="userName" label="用户名字" size="16" />
					</td>
				</tr>
				<tr>
					<td>
						<s:password name="password" label="用户密码" size="16" />
					</td>
				</tr>
				<tr>
					<td colspan="2" align="center">
						<s:submit value="登录" />
					</td>
				</tr>
				<tr>
					<td colspan="2" align="center">
						<s:a href="http://localhost:8080/ch05/register.jsp">注册</s:a>
					</td>
				</tr>
			</table>
		</s:form>
	</body>
</html>

register.jsp

<%@page contentType="text/html" pageEncoding="UTF-8"%>
<%@taglib prefix="s" uri="/struts-tags" %>
<html>
	<head>
		<meta http-equiv="Content-Type" content="text/html;charset=UTF-8">
		<title><s:text name="基于SH的应用"></s:text></title>
	</head>
	<body bgcolor="#CCCCFF">
		<s:form action="register" method="post">
			<br><br><br><br><br><br>
			<table border="1" align="center" label="#AABBCCDD">
				<tr>
					<td>
						<s:textfield name="userName" label="用户名字" size="16" />
					</td>
				</tr>
				<tr>
					<td>
						<s:password name="password1" label="用户密码" size="16" />
					</td>
				</tr>
				<tr>
					<td>
						<s:password name="password2" label="再次输入密码" size="16" />
					</td>
				</tr>
				<tr>
					<td colspan="2" align="center">
						<input type="submit" value="提交" />&nbsp;&nbsp;
						&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
						<input type="reset" value="清空" />
					</td>
				</tr>
				<tr>
					<td colspan="2" align="center">
						<s:a href="http://localhost:8080/ch05/login.jsp">返回</s:a>
					</td>
				</tr>
			</table>
		</s:form>
	</body>
</html>

success.jsp

<%@page contentType="text/html" pageEncoding="UTF-8"%>
<%@taglib prefix="s" uri="/struts-tags" %>
<html>
	<head>
	<meta http-equiv="Content-Type" content="text/html;charset=UTF-8">
		<title><s:text name="基于SH的应用"></s:text></title>
	</head>
	<body bgcolor="#CCCCFF">
		<hr>
		<table border="0" align="center" bgcolor="AABBCCDD">
			<tr>
				<td>
					欢迎${userName},登录成功！！！
				</td>
			</tr>
		</table>
		<hr>
	</body>
</html>

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/javaeee/web-app_3_1.xsd" 
	id="WebApp_ID" 
	version="3.1" >
		<filter>
		<!-- 配置Struts2核心控制器的名字 -->
		<filter-name>struts2</filter-name>
		<filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>
	</filter>
	
	<filter-mapping>
		<!-- Struts2控制器的名字 -->
		<filter-name>struts2</filter-name>
		<!-- 拦截所有的URL请求-->
		<url-pattern>/*</url-pattern>
	</filter-mapping>
	
	<welcome-file-list>
		<welcome-file>login.jsp</welcome-file>
	</welcome-file-list>
	
	
</web-app>

hibernate.cfg.xml

<!DOCTYPE hibernate-configuration PUBLIC
	"-//Hibernate/Hibernate Configuration DTD 3.0//EN"
	"http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd">
	<!-- Hibernate配置文件的根元素，其他元素应在其中 -->
	<hibernate-configuration>
		<!-- 设置初始化Hibernate5参数的元素，其中指定HIbernate5初始化参数，
			表明以下的配置是针对session-factory配置，SessionFactory是Hibernate5中的一个接口
			这个接口主要负责保存Hibernate5的配置信息以及对Session的操作 -->
		<session-factory>
			<!-- 设置连接数据库所用的驱动 -->
			<property name="hibernate.connection.driver_class">
				com.mysql.jdbc.Driver
			</property>	
			<!-- 设置数据库连接使用的URL -->
			<property name="hibernate.connection.url">
				jdbc:mysql://127.0.0.1:3306/test
			</property>
			<!-- 设置数据库的用户名 -->
			<property name="hibernate.connection.username">root</property>
			<!-- 设置数据库的密码 -->
			<property name="hibernate.connection.password">hjw19990825</property>
			<!-- 设置数据库的方言，每种数据库都有对应的方言 -->
			<property name="hibernate.dialect">
				org.hibernate.dialect.MySQL5Dialect
			</property>
			<!-- 设置连接池中的最小连接数 -->
			<property name="hibernate.c3p0.min_size">10</property>
			<!-- 设置连接池中的最大连接数 -->
			<property name="hibernate.c3p0.max_size">50</property>
			<!-- 设置连接池中某个数据库访问超时时间，超时将被移除，即最大时间 -->
			<property name="hibernate.c3p0.timeout">120</property>
			<!-- 设置时间范围内检查所有连接的空闲时间并销毁超时的连接 -->
			<property name="hibernate.c3p0.idle_test_period">3000</property>
			<!-- 设置当连接池中的连接耗尽的时候，一次同时获取的连接数 -->
			<property name="acquireIncrement">5</property>
			<!-- 设置在从数据库获取新连接失败后重复尝试的次数 -->
			<property name="acquireRetryAttempts">30</property>
			<!-- 设置两次连接中间隔时间，单位为毫秒 -->
			<property name="acquireRettryDelay">1000</property>
			<!-- 连接关闭时默认将所有未提交的操作回滚 -->
			<property name="autoCommitOnClose">false</property>
			<!-- 设置session上下文，thread表示，当前thread中取到session保证是同一个session -->
			<property name="current_session_content_class">thread</property>
			<!-- 根据需要自动创建数据表 -->
			<property name="binernate.hbm2ddl.auto">update</property>
			<!-- 设置是否将Hibernate5发送给数据库的SQL语句，有助于迅速解决问题 -->
			<property name="hibernate.format_sql">true</property>
			<!-- 加入映射文件，可以加入多个映射文件 -->
			<mapping resource="PO/UserInfoPO.hbm.xml"/>
		</session-factory>
	</hibernate-configuration>

struts.xml

<!DOCTYPE struts PUBLIC
	"-//Apache Software Foundation//DTD Struts Configuration 2.5//EN"
	"http://struts.apache.org/dtds/struts-2.5.dtd">
<struts>
	<include file="example.xml"></include>
	<package name="default" extends="struts-default">
		<action name="register" class="loginRegisterAction.ResisterAction">
			<result name="success">/login.jsp</result>
			<result name="error">/register.jsp</result>
			<result name="input">/register.jsp</result>
		</action>
		
		<action name="login" class="loginRegisterAction.LoginAction">
			<result name="success">/success.jsp</result>
			<result name="error">/login.jsp</result>
			<result name="input">/login.jsp</result>
		</action>
	</package>
</struts>

HibernateSessionFactory.java

package addHibernateFile;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.cfg.Configuration;

public class HibernateSessionFactory {
	private static SessionFactory sessionFactory;
	public static Session getSession() {
		return getSessionFactory().openSession();
	}
	public static SessionFactory getSessionFactory() {
		if(sessionFactory==null||sessionFactory.isClosed()) {
			sessionFactory=new Configuration().configure().buildSessionFactory();
		}
		return sessionFactory;
	}
}

LoginAction.java

package loginRegisterAction;
import com.opensymphony.xwork2.ActionSupport;
import loginResisterDao.LoginResisterInfo;
import PO.UserInfoPO;
import java.util.List;

import org.eclipse.jdt.internal.compiler.ast.ThisReference;

public class LoginAction extends ActionSupport{
	private String userName;
	private String password;
	private String message="error";
	private List list;
	
	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;
	}
	//身份验证
	public void validate() {
		if(this.getUserName()==null||this.getUserName().length()==0) {
			//addFieldError("字段名","错误信息")给一个字段(属性)添加错误消息
			addFieldError("userName", "用户名不能为空！！！");
		}
		else {
			LoginResisterInfo info=new LoginResisterInfo();
			list=info.queryInfo("userName",this.getUserName());
			if(list.size()==0) {
				addFieldError("userName", "该用户尚未注册！");
			}
			else {
				UserInfoPO ui=new UserInfoPO();
				int count=0;
				for(int i=0;i<list.size();i++) {
					count++;
					ui=(UserInfoPO)list.get(i);
					if(this.getUserName().equals(ui.getUserName())) {
						if(ui.getPassword().equals(this.getPassword())) {
							message=SUCCESS;
						}
						else {
							addFieldError("password", "登录密码错误！！！");
						}
					}
				}
				
			}
		}
	}

	public String execute() throws Exception{
		return message;
	}
}

RegisterAction.java

package loginRegisterAction;
import PO.UserInfoPO;
import com.opensymphony.xwork2.ActionSupport;
import com.sun.org.apache.regexp.internal.REUtil;

import loginResisterDao.LoginResisterInfo;
import java.util.List;

import org.eclipse.jdt.internal.compiler.ast.ThisReference;

public class ResisterAction  extends ActionSupport{
	private String userName;
	private String password1;
	private String password2;
	private String mess="error";
	private List list;
	
	public String getUserName() {
		return userName;
	}
	public void setUserName(String userName) {
		this.userName = userName;
	}
	public String getPassword1() {
		return password1;
	}
	public void setPassword1(String password1) {
		this.password1 = password1;
	}
	public String getPassword2() {
		return password2;
	}
	public void setPassword2(String password2) {
		this.password2 = password2;
	}
	//身份验证
	public void validate() {
		if(this.getUserName()==null||this.getUserName().length()==0) {
			addFieldError("userName", "用户名不能为空！！！");
		}
		else {
			LoginResisterInfo info=new LoginResisterInfo();
			list=info.queryInfo("userName",this.getUserName());
			UserInfoPO ui=new UserInfoPO();
			for(int i=0;i<list.size();i++) {
				ui=(UserInfoPO)list.get(i);
				if(ui.getUserName().equals(this.getUserName())) {
					addFieldError("userName", "用户名已经存在！！！");
				}
			}
		}
		if(this.getPassword1()==null||this.getPassword1().length()==0) {
			addFieldError("password1", "登陆密码不能为空！！！");
		}
		else if(this.getPassword2()==null||this.getPassword2().length()==0) {
			addFieldError("password2","重复密码不能为空！！！");
		}
		else if(!this.getPassword1().equals(this.getPassword2())) {
			addFieldError("password2","两次密码不一致！！！");
		}
	}
	
	public UserInfoPO userInfo() {
		UserInfoPO info=new UserInfoPO();
		info.setUserName(this.getUserName());
		info.setPassword(this.getPassword1());
		return info;
	}
	
	public String execute() throws Exception{
		LoginResisterInfo lr=new LoginResisterInfo();
		String ri=lr.saveInfo(userInfo());
		if(ri.equals("success")) {
			mess="success";
		}
		return mess;
	}
}

LoginResisterInfo.java

package loginResisterDao;
import addHibernateFile.HibernateSessionFactory;
import PO.UserInfoPO;
import java.util.List;
import javax.swing.JOptionPane;
import org.hibernate.Query;
import org.hibernate.Session;
import org.hibernate.Transaction;

import com.sun.corba.se.impl.protocol.giopmsgheaders.Message;

public class LoginResisterInfo {
	private Session session;
	private Transaction transaction;
	private Query query;
	HibernateSessionFactory getSession;
	
	public LoginResisterInfo() {
		
	}
	//将注册的信息写入数据库
	public String saveInfo(UserInfoPO info) {
		String mess="error";
		getSession=new HibernateSessionFactory();
		session=getSession.getSession();
		try {
			transaction=session.beginTransaction();
			session.save(info);
			transaction.commit();
			mess="success";
			return mess;
		}catch (Exception e) {
			// TODO: handle exception
			message("RegisterInfo.error:"+e);
			e.printStackTrace();
			return null;
		}
	}
	//查询数据库
	public List queryInfo(String type,Object value) {
		getSession=new HibernateSessionFactory();
		session=getSession.getSession();
		try {
			String hql="from UserInfoPO as u where u.userName=?";
			//createQuery():对查询语句的执行
			query=session.createQuery(hql);
			//setParameter():对动态参数的绑定
			query.setParameter(0,value);
			List list=query.list();
			transaction=session.beginTransaction();
			transaction.commit();
			return list;
		}catch (Exception e) {
			// TODO: handle exception
			message("LoginRegisterInfo类中有异常，异常为："+e);
			e.printStackTrace();
			return null;	
		}
	}
	
	public void message(String mess) {
		int type=JOptionPane.YES_NO_OPTION;
		String title="提示信息";
		JOptionPane.showMessageDialog(null, mess,title,type);
	}
}

UserInfoPO.java

package PO;

public class UserInfoPO {
	private int id;
	private String userName;
	private String password;
	
	public int getId() {
		return id;
	}
	public void setId(int id) {
		this.id = id;
	}
	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;
	}
	
}

UserInfoPO.hbm.xml

<?xml version="1.0" encoding="UTF-8"?>
<!-- 解析文件的DTD -->
<!DOCTYPE hibernate-mapping PUBLIC
	"-//Hibernate/Hibernate Mapping DTD 3.0//EN"
	"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
	<!-- 映射文件的根目录 -->
	<hibernate-mapping>
		<class name="PO.UserInfoPO" table="info" catalog="test">
			<id name="id" type="int">
				<column name="id"></column>
				<generator class="increment"></generator>
			</id>
			<property name="userName" type="string">
				<column name="userName" length="30" not-null="true"></column>
			</property>
			<property name="password" type="string">
				<column name="password" length="30" not-null="true"></column>
			</property>
		</class>
	</hibernate-mapping>

运行结果：

登录页面：
在这里插入图片描述
注册页面：

登录成功页面：

17 条评论

学不动亿点 2024.12.08
博主麻烦发下jar包 3611803941@qq,com

不想上学111 2024.06.11
为什么点击注册之后页面显示失败啊

rot_soft 2024.04.30
可以求一下源代码吗？万分感谢 3453568854@qq.com

LKH11111 2023.04.27
可以发下jar包吗万分感谢3321353002@qq.com

weixin_46032533 2022.05.30
可以发下jar包吗万分感谢2124251764@qq.com

sansemao55 2022.05.13
为什么注册失败的时候没有提示文字啊？

qq_51721777 2021.11.28
博主可以求下源码吗 193242743@qq.com

weixin_51776329 2021.07.01
博主可以私发下源码吗？另外这个需要另外的jar包吗我自己找的jar包是已经链接上数据库了，这个工程mysql建数据库的代码可以附上吗 1502563781@qq.com万分感谢
- monkey_wei回复weixin_51776329 2021.07.14
  邮箱已回

qq_47673459 2021.06.22
jar包有吗？

weixin_45845678 2020.06.09
能看下JAR包吗出现404的问题应该是缺少JAR包代码不显示错误
- weixin_51776329回复weixin_45845678 2021.07.02
  可以发下jar包吗
- qq_47673459回复weixin_47049617 2021.06.23
  你有jar包吗？
- weixin_47049617回复monkey_wei 2020.12.24
  博主能看下jar包吗
- monkey_wei回复weixin_45845678 2020.06.09
  [reply]weixin_45845678[/reply]已私回