Struts2+hibernate实现用户登录和增删改查案例

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开发工具MyEclipse 10.7.1

创建一个项目 web项目project。

部署好Struts2的开发环境：

1、引入需要的类库文件 jar

2、添加struts2的配置文件 struts.xml //src路径：classespath:

3、在web.xml添加启动struts2 MVC框架的过滤器

4、添加Hibernate所依赖的jar文件

(注意：如果Hibernate添加的jar文件与struts2添加jar文件名称完全一致(只需其中之一)(版本不一致保留高本版) )

5、同样添加hibernate的配置文件

Classespath: src路径下面

6、需要添加对应数据库操作的驱动文件jar

在此基础上对 admin这个类完成增删改查的操作。

在src下搭建开发框架，如图所示：

struts.xml文件：

<?xml version="1.0" encoding="UTF-8"?>

<!DOCTYPE struts PUBLIC

"-//Apache Software Foundation//DTD Struts Configuration 2.3//EN"

"http://struts.apache.org/dtds/struts-2.3.dtd">

</struts>

struts-admin.xml文件：

<?xml version="1.0" encoding="UTF-8"?>

<!DOCTYPE struts PUBLIC

"-//Apache Software Foundation//DTD Struts Configuration 2.3//EN"

"http://struts.apache.org/dtds/struts-2.3.dtd">

<action name="adminLogin" class="www.csdn.project.action.AdminAction"

method="login">

<result name="success">/manager/index.jsp</result>

<result name="login">/index.jsp</result>

</action>

<action name="adminlist" class="www.csdn.project.action.AdminAction"

method="getAllObjects">

<result name="success">/manager/admin/admin_list.jsp</result>

</action>

<result name="success">/manager/admin/admin_sing.jsp</result>

</action>

<param name="actionName">adminlist.action</param>

</result>

</action>

<param name="actionName">adminlist.action</param>

</result>

</action>

<result name="success">/manager/admin/admin_update.jsp</result>

</action>

<param name="actionName">adminlist.action</param>

</result>

</action>

</package>

</struts>

hibernate.cfg.xml文件：

<?xml version="1.0" encoding="UTF-8"?>

<!DOCTYPE hibernate-configuration PUBLIC

"-//Hibernate/Hibernate Configuration DTD 3.0//EN"

"http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd">

<hibernate-configuration>

<session-factory>

<property name="myeclipse.connection.profile">localhost</property>

jdbc:mysql://localhost:3306/bookstore

</property>

com.mysql.jdbc.Driver

</property>

org.hibernate.dialect.MySQLDialect

</property>

</session-factory>

</hibernate-configuration>

web.xml文件：

<?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-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>

首先，domain层（www.csdn.project.domain）的编写；

Admin.java文件：

package www.csdn.project.domain;

public class Admin implements java.io.Serializable {

/**

private static final long serialVersionUID = 1L;

private Integer adminId;

private String adminName;

private String adminPassword;

public Admin() {

}

public Admin(String adminName, String adminPassword) {

this.adminName = adminName;

this.adminPassword = adminPassword;

}

public Admin(String adminName, String adminPassword, String adminEmail) {

this.adminName = adminName;

this.adminPassword = adminPassword;

}

public Integer getAdminId() {

return this.adminId;

}

public void setAdminId(Integer adminId) {

this.adminId = adminId;

}

public String getAdminName() {

return this.adminName;

}

public void setAdminName(String adminName) {

this.adminName = adminName;

}

public String getAdminPassword() {

return this.adminPassword;

}

public void setAdminPassword(String adminPassword) {

this.adminPassword = adminPassword;

}

@Override

public String toString() {

return "Admin [adminId=" + adminId

+ ", adminName=" + adminName + ", adminPassword="

+ adminPassword + "]";

}

Admin.hbm.xml配置文件；

<?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">

<!--

Mapping file autogenerated by MyEclipse Persistence Tools

-->

<hibernate-mapping>

</id>

</property>

</property>

</class>

</hibernate-mapping>

dao层（www.csdn.project.dao）的编写；

AdminDAO.java文件：（封装了查看所有用户信息的方法）

package www.csdn.project.dao;

import java.util.List;

import www.csdn.project.domain.Admin;

public interface AdminDAO extends BaseDAO<Admin,Integer> {

public Admin login(String adminName,String adminPass);

public Admin findById(Integer id);

public List<Admin> findAdminPage(int nowPage,int pageSize);

}

然后，BaseDAO.java文件：（这里封装了对用户进行增删改查的方法）

package www.csdn.project.dao;

import java.util.List;

public interface BaseDAO<T,PK> {

public List<T> getAllObjects(Class<T> entityClass);

public T getObjectById(Class<T> entityClass,PK id);

public T loadObjectById(Class<T> entityClass,PK id);

public void saveObject(T entity);

public void deleteObject(T entity);

public void deleteObjectById(PK id);

public void updateObject(T entity);

}

下面是实现两个类中的方法的AdminDAOImpl.java文件：

package www.csdn.project.dao;

import java.util.List;

import www.csdn.project.domain.Admin;

import www.csdn.project.util.BaseHibernateDAO;

import www.csdn.project.util.HiberSessionFactory;

public class AdminDAOImpl extends BaseHibernateDAO implements AdminDAO {

public Admin login(String adminName, String adminPass) {

Admin entity=null;

try{

entity = (Admin) getSession()

.createQuery(

"from Admin a where a.adminName=:adminName and a.adminPassword=:adminPassword")

.setParameter("adminName", adminName).setParameter(

"adminPassword", adminPass).uniqueResult();

}catch (RuntimeException e) {

HiberSessionFactory.closeSession();

}

return entity;

}

public List<Admin> findAdminPage(int nowPage, int pageSize) {

return null;

}

public Admin findById(Integer id) {

return null;

}

@SuppressWarnings("unchecked")

public List<Admin> getAllObjects(Class<Admin> entityClass) {

List<Admin> entities=null;

try{

entities = getSession().createCriteria(entityClass).list();

}catch (RuntimeException e) {

HiberSessionFactory.closeSession();

}

return entities;

}

public Admin getObjectById(Class<Admin> entityClass, Integer id) {

Admin entities=null;

try{

entities=(Admin) getSession().get(entityClass, id);

}catch (RuntimeException e) {

HiberSessionFactory.closeSession();

}

return entities;

}

public Admin loadObjectById(Class<Admin> entityClass, Integer id) {

Admin entities=null;

try{

entities=(Admin) getSession().load(entityClass, id);

}catch (RuntimeException e) {

HiberSessionFactory.closeSession();

}

return entities;

}

public void saveObject(Admin entity) {

getSession().save(entity);

}

public void deleteObject(Admin entity) {

getSession().delete(entity);

}

public void deleteObjectById(Integer id) {

//this.getSession().delete(this.getObjectById(Admin.class, id));

}

public void updateObject(Admin entity) {

getSession().update(entity);

}

这样dao层完成了其作用。

Service层（www.csdn.project.service）事务层的编写;

AdminService.java文件：

package www.csdn.project.service;

import java.util.List;

import www.csdn.project.domain.Admin;

public interface AdminService extends BaseService<Admin,Integer> {

public Admin login(String adminName,String adminPass);

public List<Admin> findAdminPage(int nowPage,int pageSize);

}

BaseService.java文件：

package www.csdn.project.service;

import java.util.List;

public interface BaseService<T,PK> {

public List<T> getAllObjects(Class<T> entityClass);

public T getObjectById(Class<T> entityClass,PK id);

public T loadObjectById(Class<T> entityClass,PK id);

public void saveObject(T entity);

public void deleteObject(T entity);

public void deleteObjectById(PK id);

public void updateObject(T entity);

}

AdminServiceImpl.java文件：

package www.csdn.project.service;

import java.util.List;

import org.hibernate.Transaction;

import www.csdn.project.dao.AdminDAO;

import www.csdn.project.dao.AdminDAOImpl;

import www.csdn.project.domain.Admin;

import www.csdn.project.util.BaseHibernateDAO;

import www.csdn.project.util.HiberSessionFactory;

public class AdminServiceImpl extends BaseHibernateDAO implements AdminService{

private AdminDAO adminDAO = new AdminDAOImpl();

public Admin login(String adminName, String adminPass) {

return adminDAO.login(adminName, adminPass);

}

public List<Admin> findAdminPage(int nowPage, int pageSize) {

return null;

}

public List<Admin> getAllObjects(Class<Admin> entityClass) {

return adminDAO.getAllObjects(entityClass);

}

public Admin getObjectById(Class<Admin> entityClass, Integer id) {

return adminDAO.getObjectById(entityClass, id);

}

public Admin loadObjectById(Class<Admin> entityClass, Integer id) {

return adminDAO.loadObjectById(entityClass, id);

}

public void saveObject(Admin entity) {

Transaction ts=null;

try {

ts = getSession().beginTransaction();

adminDAO.saveObject(entity);

ts.commit();

} catch (Exception e) {

if (ts != null) {

ts.rollback();

}

} finally {

HiberSessionFactory.closeSession();

}

public void deleteObject(Admin entity) {

Transaction ts=null;

try{

ts=getSession().beginTransaction();

adminDAO.deleteObject(entity);

ts.commit();

}catch (Exception e) {

if (ts != null) {

ts.rollback();

}

} finally {

HiberSessionFactory.closeSession();

}

public void deleteObjectById(Integer id) {

//调用这个方法的时候，它本身是不是已经打开了一个session

Admin entity = adminDAO.getObjectById(Admin.class, id);

//session 立马关闭了

Transaction ts = null;

try {

ts = getSession().beginTransaction();

adminDAO.deleteObject(entity);

ts.commit();

} catch (Exception e) {

if (ts != null) {

ts.rollback();

}

} finally {

HiberSessionFactory.closeSession();

}

public void updateObject(Admin entity) {

Transaction ts=null;

try{

ts=getSession().beginTransaction();

ts.commit();

}catch (Exception e) {

if(ts!=null){

ts.rollback();

}

}finally{

HiberSessionFactory.closeSession();

}

下面写struts2所需要的action层（www.csdn.action）的编写：

AdminAction.java文件：

package www.csdn.project.action;

import java.util.List;

import www.csdn.project.domain.Admin;

import www.csdn.project.service.AdminService;

import www.csdn.project.service.AdminServiceImpl;

import com.opensymphony.xwork2.ActionSupport;

public class AdminAction extends ActionSupport {

/**

private static final long serialVersionUID = 1L;

private Integer adminId;

private String adminName;

private String adminPassword;

private Admin entity;

private String name;

private List<Admin> entities;

private AdminService adminService = new AdminServiceImpl();

public int getAdminId() {

return adminId;

}

public void setAdminId(int adminId) {

this.adminId = adminId;

}

public List<Admin> getEntities() {

return entities;

}

public void setEntities(List<Admin> entities) {

this.entities = entities;

}

public AdminAction() {

System.out.println("action启动~~~");

}

public String getName() {

return name;

}

public void setName(String name) {

this.name = name;

}

public void setAdminName(String adminName) {

this.adminName = adminName;

}

public void setAdminPassword(String adminPassword) {

this.adminPassword = adminPassword;

}

public Admin getEntity() {

return entity;

}

public String login() {

entity = adminService.login(adminName, adminPassword);

if (entity != null) {

return SUCCESS;

} else {

return LOGIN;

}

public String delete() {

System.out.println("删除成功......");

return SUCCESS;

}

public String getAllObjects(){

entities =adminService.getAllObjects(Admin.class);

return SUCCESS;

}

public String getObjectById(){

entity =adminService.getObjectById(Admin.class, adminId);

return SUCCESS;

}

public String saveObject(){

adminService.saveObject(new Admin(adminName,adminPassword));

return SUCCESS;

}

public String deleteObject(){

adminService.deleteObject(entity);

return SUCCESS;

}

public AdminService getAdminService() {

return adminService;

}

public void setAdminService(AdminService adminService) {

this.adminService = adminService;

}

public String deleteObjectById(){

adminService.deleteObjectById(adminId);

System.out.println("删除成功~~~");

return SUCCESS;

}

public String findAdminById(){

entity=adminService.getObjectById(Admin.class, adminId);

return SUCCESS;

}

public String updateObject(){

entity=adminService.getObjectById(Admin.class, adminId);

entity.setAdminName(adminName);

adminService.updateObject(entity);

return SUCCESS;

}

接着写显示页面的代码；

在WebRoot下的index.jsp中写登录

<%@ 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>

<title>My JSP 'index.jsp' starting page</title>

<!--

-->

</head>

<body>

<h3>

后台管理登陆界面

</h3>

<hr />

<form

action="${pageContext.request.contextPath}/csdn/adminLogin.action"

method="post">

用户名:

<br />

密码：

<br />

</form>

</div>

${name}

</div>

</body>

</html>

其他显示页面在如图中：

index.jsp文件：

<%@ 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>

<title>My JSP 'index.jsp' starting page</title>

<!--

-->

</head>

<body>

<h3>

欢迎${entity.adminName}登录后台管理界面!

</h3>

<a href="${pageContext.request.contextPath }/csdn/adminlist.action">管理所有用户</a><br>

</div>

</body>

</html>

admin_insert.jsp文件：

admin_list.jsp文件：

admin_sing.jsp文件：

admin_update.jsp文件：

以下是效果图：

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