Hibernate 框架具有良好的可移植性，它支持几乎所有主流的关系型数据库，开发人员合理使用的话，能够帮助其提高开发效率，那hibernate+struts登录注册如何实现?下面来我们就来给大家讲解一下hibernate+struts登录注册实现操作。
1、该项目使用MySQL数据库，数据库名为test，表名info，如图所示：
2、配置web.xml(Struts2使用)
<?xml version="1.0" encoding="UTF-8"?> <web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"> <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> <welcome-file-list> <welcome-file>index.jsp</welcome-file> </welcome-file-list> </web-app>
3、编写视图组件(JSP页面)
(1)登录页面login.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8" 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的登录注册系统" /></title> </head> <body bgcolor="#CCCCFF"> <s:form action="login" method="post"> <br><br><br><br><br><br> <table border="1" align="center" bgcolor="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="18" /> </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/hibernate01/register.jsp">注册</s:a> </td> </tr> </table> </s:form> </body> </html>
(2)登陆成功页面success.jsp
<%@ 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>Insert title here</title> </head> <body bgcolor="#CCCCFF"> <hr> <table> <tr> <td> 欢迎<s:property value="userName"/>,登陆成功！ </td> </tr> </table> <hr> </body> </html>
(3)注册页面register.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <%@ taglib prefix="s" uri="/struts-tags" %> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>Insert title here</title> </head> <body bgcolor="#CCCCFF"> <s:form action="register" method="post"> <br><br><br><br><br><br> <table border="1" align="center" bgcolor="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="18" /> </td> </tr> <tr> <td> <s:password name="password2" label="再次输入密码" size="18" /> </td> </tr> <tr> <td colspan="2" align="center"> <input type="submit" value="提交" /> <input type="reset" value="清空" /> </td> </tr> <tr> <td colspan="2" align="center"> <s:a href="http://localhost:8080/hibernate01/login.jsp">返回</s:a> </td> </tr> </table> </s:form> </body> </html>
4、业务控制器Action
(1)登录页面对应的业务控制器LoginAction.java
其中，重写valiadate()方法，进行手工验证
package loginRegisterAction;
import java.util.List;
import loginRegisterDao.LoginRegisterInfo;
import PO.UserInfoPO;
import com.opensymphony.xwork2.ActionSupport;
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;
}
public void validate()
{
if (this.getUserName() == null || this.getUserName()
.length() == 0)
{
addFieldError("userName", "用户名不能为空!");
}
else
{
LoginRegisterInfo info = new LoginRegisterInfo();
list = info.queryInfo("userName", this.getUserName());
if (list.size() == 0)
{
addFieldError("userName", "该用户尚未注册");
}
else
{
UserInfoPO ui = new UserInfoPO();
for (int i = 0; i < list.size(); i++)
{
ui = (UserInfoPO) list.get(i);
if (this.getUserName()
.equals(ui.getUserName()))
{
if (ui.getPassword()
.equals(this.getPassword()))
{
message = SUCCESS;
}
else
{
addFieldError("password", "登录密码不正确");
}
}
}
}
}
}
public String execute() throws Exception
{
return message;
}
}(2)注册页面对应的业务控制器RegisterAction.java
package loginRegisterAction;
import java.util.List;
import loginRegisterDao.LoginRegisterInfo;
import PO.UserInfoPO;
import com.opensymphony.xwork2.ActionSupport;
public class RegisterAction extends ActionSupport
{
private String userName;
private String password1;
private String password2;
private String mess = ERROR; //ERROR等同于"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;
}
public void validate()
{
if (this.getUserName() == null || this.getUserName()
.length() == 0)
{
addFieldError("userName", "用户名不能为空！");
}
else
{
LoginRegisterInfo info = new LoginRegisterInfo();
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", "用户名已存在！");
}
}
}
if (this.getPassword1() == null || this.getPassword1()
.length() == 0)
{
addFieldError("password1", "登录密码不许为空！");
}
else if (this.getPassword2() == null || this.getPassword2()
.length() == 0)
{
addFieldError("password2", "重复密码不许为空！");
}
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
{
LoginRegisterInfo lr = new LoginRegisterInfo();
String ri = lr.saveInfo(userInfo());
if (ri.equals("success"))
{
mess = SUCCESS;
}
return mess;
}
}5、在struts.xml中配置Action
<!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN" "http://struts.apache.org/dtds/struts-2.0.dtd"> <struts> <package name="default" extends="struts-default"> <action name="register" class="loginRegisterAction.RegisterAction"> <result name="success">/login.jsp</result> <result name="input">/register.jsp</result> <result name="error">/register.jsp</result> </action> <action name="login" class="loginRegisterAction.LoginAction"> <result name="success">/success.jsp</result> <result name="input">/login.jsp</result> <result name="error">/login.jsp</result> </action> </package> </struts>
6、Hibernate的配置文件
使用Hibernate需要通过Hibernate的配置文件加载数据库驱动以及与数据建立连接，配置文件为hibernate.cfg.xml
<!DOCTYPE hibernate-configuration PUBLIC "-//Hibernate/Hibernate Configuration DTD 3.0//EN" "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd"> <hibernate-configuration> <session-factory> <property name="connection.driver_class">com.mysql.jdbc.Driver</property> <property name="connection.url">jdbc:mysql://localhost:3306/test?useUnicode=true&characterEncoding=utf-8</property> <property name="connection.username">root</property> <property name="connection.password"></property> <!-- 指定数据库的方言 --> <property name="dialect">org.hibernate.dialect.MySQL5Dialect</property> <!-- 加入映射文件 --> <mapping resource="PO/UserInfoPO.hbm.xml"/> </session-factory> </hibernate-configuration>
7、加载上面Hibernate配置文件的类(HIbernateSessionFactory.java)
package addHibernateFile;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.cfg.Configuration;
public class HibernateSessionFactory
{
private SessionFactory sessionFactory;
public HibernateSessionFactory()
{}
public SessionFactory config()
{
try
{
Configuration configuration = new Configuration();
Configuration configure = configuration.configure("hibernate.cfg.xml");
return configure.buildSessionFactory();
}
catch (Exception e)
{
e.getMessage();
return null;
}
}
public Session getSession()
{
sessionFactory = config();
return sessionFactory.openSession();
}
}8、PO对象以及对应的映射文件(在同一个包下)
(1)PO对象的类UserInfoPO.Java
package PO;
/*
* PO对象(持久化对象)的类，与数据库相对应
*/
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;
}
}(2) PO对应的映射文件UserInfoPO.hbm.xml
<?xml version="1.0" encoding="utf-8"?> <!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN" "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd"> <!-- 映射文件的根元素 --> <hibernate-mapping> <!-- 配置PO对象与数据库中表的对应关系使用class元素，name配置PO对象对应的类， table配置该PO对象在数据库中对应的表名，catalog配置表对应的数据库名 --> <class name="PO.UserInfoPO" table="info" catalog="test"> <!-- id元素配置PO对象与数据库中表的对应id字段，name配置PO对象对应的属性，type指定类型 generator元素将主键自动加入序列 --> <id name="id" type="int"> <column name="id"/> <generator class="assigned" /> </id> <property name="userName" type="string"> <column name="userName" length="30" not-null="true" /> </property> <property name="password" type="string"> <column name="password" length="30" not-null="true" /> </property> </class> </hibernate-mapping>
9、完成登录和注册业务功能
将登录和注册业务功能封装到类LoginRegisterInfo(JavaBean)中
数据库操作类LoginRegisterInfo.java:
package loginRegisterDao;
/*
* 登录和注册业务功能，封装到这个JavaBean
*/
import java.util.List;
import javax.swing.JOptionPane;
import org.hibernate.Query;
import org.hibernate.Session;
import org.hibernate.Transaction;
import PO.UserInfoPO;
import addHibernateFile.HibernateSessionFactory;
public class LoginRegisterInfo {
private Session session;
private Transaction transaction;
private Query query;
HibernateSessionFactory getSession;
public LoginRegisterInfo(){
}
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){
message("RegisterInfo.error:"+e);
e.printStackTrace();
return null;
}
}
public List queryInfo(String type,Object value){
getSession=new HibernateSessionFactory();
session=getSession.getSession();
try{
String hqlsql="from UserInfoPO as u where u.userName=?";
query=session.createQuery(hqlsql);
query.setParameter(0, value);
List list=query.list();
transaction=session.beginTransaction();
transaction.commit();
return list;
}catch(Exception e){
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);
}
}这样我们就实现了hibernate+struts登录注册操作，大家有感兴趣的话，可以自己试着开发一下哦!最后大家如果想要了解更多java架构师知识，敬请关注奇Q工具网。
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