使用Struts2+Hibernate开发学生信息管理功能

运行结果：



总共两个表，用户表Users和学生信息表Students。

项目内容：





其中com.scx.action包中包含

所有action动作的父类SuperAction

学生信息动作类StudentsAction

用户动作类UsersAction

com.scx.entity包中包含

学生实体类Students

用户实体类Users
Students对象关系映射文件Students.hbm.xml

Users对象关系映射文件Users.hbm.xml

com.scx.service包中包含

学生业务逻辑接口StudentsDao

用户业务逻辑接口UsersDao

com.scx.service.impl包中包含

用户业务逻辑接口StudentsDao对应的实现类StudentsDaoImpl

用户业务逻辑接口UsersDao对应的实现类UsersDaoImpl

com.scx.util包中包含

HibernateSessionFactory类，一个单例模式返回SessionFactory对象
test文件夹 主要是junit测试内容  

代码展示：
Students实体类

package com.scx.entity;

import java.util.Date;
//学生实体类
public class Students {
private String sid;//学号
private String sname;//姓名
private String gender;//性别
private Date birthday;//出生日期
private String address;//地址

public Students() {

}

public Students(String sid, String sname, String gender, Date birthday,
String address) {
this.sid = sid;
this.sname = sname;
this.gender = gender;
this.birthday = birthday;
this.address = address;
}

public String getSid() {
return sid;
}

public void setSid(String sid) {
this.sid = sid;
}

public String getSname() {
return sname;
}

public void setSname(String sname) {
this.sname = sname;
}

public String getGender() {
return gender;
}

public void setGender(String gender) {
this.gender = gender;
}

public Date getBirthday() {
return birthday;
}

public void setBirthday(Date birthday) {
this.birthday = birthday;
}

public String getAddress() {
return address;
}

public void setAddress(String address) {
this.address = address;
}

}

Users实体类

package com.scx.entity;

public class Users {
private int uid;//主键id
private String username;//用户名
private String password;//密码

public Users(int uid, String username, String password) {

this.uid = uid;
this.username = username;
this.password = password;
}

public Users() {

}

public int getUid() {
return uid;
}

public void setUid(int uid) {
this.uid = uid;
}

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;
}

}

Students.hbm.xml  这里要注意  学生主键的生成方式为assigned

<?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>
<class name="com.scx.entity.Students" table="students" catalog="studentmanagent">
<id name="sid" type="java.lang.String">
<column name="SID" />
<generator class="assigned" />
</id>
<property name="sname" type="java.lang.String">
<column name="SNAME" length="20" />
</property>
<property name="gender" type="java.lang.String">
<column name="GENDER" length="2" />
</property>
<property name="birthday" type="date">
<column name="BIRTHDAY"  />
</property>
<property name="address" type="string">
<column name="ADDRESS" length="50"></column>
</property>
</class>
</hibernate-mapping>

Users.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">
<!--
Mapping file autogenerated by MyEclipse Persistence Tools
-->
<hibernate-mapping>
<class name="com.scx.entity.Users" table="USERS" catalog="studentmanagent">
<id name="uid" type="java.lang.Integer">
<column name="UID" />
<generator class="native" />
</id>
<property name="username" type="string">
<column name="USERNAME" length="30"></column>
</property>
<property name="password" type="string">
<column name="PASSWORD" length="30"></column>
</property>

</class>
</hibernate-mapping>

hibernate.cfg.xml

<?xml version='1.0' encoding='UTF-8'?>
<!DOCTYPE hibernate-configuration PUBLIC
"-//Hibernate/Hibernate Configuration DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">

<!-- Generated by MyEclipse Hibernate Tools.                   -->
<hibernate-configuration>

<session-factory>
<property name="dialect">
org.hibernate.dialect.MySQLDialect
</property>
<property name="connection.url">
jdbc:mysql://localhost:3306/susu
</property>
<property name="connection.username">root</property>
<property name="connection.password">123</property>
<property name="connection.driver_class">
com.mysql.jdbc.Driver
</property>
<property name="myeclipse.connection.profile">susu</property>
<property name="hbm2ddl.auto">update</property>
<property name="show_sql">true</property>
<property name="hibernate.current_session_context_class">thread</property>
<mapping resource="com/scx/entity/Students.hbm.xml" />
<mapping resource="com/scx/entity/Users.hbm.xml" />

</session-factory>

</hibernate-configuration>

用户业务逻辑接口

package com.scx.service;

import com.scx.entity.Users;

//用户业务逻辑接口
public interface UsersDao {
//用户登录操作
public boolean usersLogin(Users user);
}

学生业务逻辑接口

package com.scx.service;

import java.util.List;

import com.scx.entity.Students;
//学生业务逻辑接口
public interface StudentsDao {
//查询所有学生信息
public List<Students> queryAllStudents();
//根据学号查询学生信息
public Students queryStudentsBySid(String sid);
//根据学号删除学生
public boolean deleteStudentsBySid(String sid);
//添加学生
public boolean addStudents(Students stu);
//更新学生信息
public boolean updateStudent(Students stu);
}

用户业务逻辑接口实现类

package com.scx.service.impl;

import java.util.List;
import org.hibernate.Query;
import org.hibernate.Session;

import org.hibernate.Transaction;

import com.scx.entity.Students;
import com.scx.entity.Users;
import com.scx.service.UsersDao;
import com.scx.util.HibernateSessionFactory;

public class UsersDaoImpl implements UsersDao {
//用户登录操作
@SuppressWarnings("unchecked")
public boolean usersLogin(Users user) {
Transaction transaction = null;
String hql = "";
try {
Session session = HibernateSessionFactory.getSessionFactory()
.getCurrentSession();
transaction = session.beginTransaction();
hql = "from Users  where username = ? and password = ?";
Query query = session.createQuery(hql);
query.setParameter(0, user.getUsername());
query.setParameter(1, user.getPassword());
List<Students> list = query.list();
transaction.commit();
if (list.size() > 0 && list != null) {
return true;
}
} catch (Exception e) {
e.printStackTrace();
return false;

} finally {
if (transaction != null) {
transaction = null;
}
}
return false;
}

}

学生业务逻辑接口实现类  除了接口内的方法外 还有一个私有的方法getNewSid
在添加学生时  为学生获取一个最新的学号。

package com.scx.service.impl;

import java.util.ArrayList;
import java.util.List;

import org.hibernate.Query;
import org.hibernate.Session;
import org.hibernate.Transaction;

import com.scx.entity.Students;
import com.scx.service.StudentsDao;
import com.scx.util.HibernateSessionFactory;

public class StudentsDaoImpl implements StudentsDao{
//查询所有的学生信息
@SuppressWarnings("unchecked")
public List<Students> queryAllStudents() {
List<Students> students=new ArrayList<Students>();
Transaction tc=null;
String hql="";
try{
Session session=HibernateSessionFactory.getSessionFactory().getCurrentSession();
tc=session.beginTransaction();
hql=" from Students";
Query query=session.createQuery(hql);
students=query.list();
tc.commit();
if(students.size()>0&&students!=null){
return students;
}else{
return null;
}
}catch(Exception e){
e.printStackTrace();
tc.commit();
return null;
}finally{
if(tc!=null){
tc=null;
}
}
}
//根据学号查询学生信息
public Students queryStudentsBySid(String sid) {
Students stu=null;
Transaction tc=null;
try{
Session session=HibernateSessionFactory.getSessionFactory().getCurrentSession();
tc=session.beginTransaction();
stu=(Students) session.get(Students.class, sid);
tc.commit();
return stu;
}catch(Exception e){
e.printStackTrace();
tc.commit();
return null;
}finally{
if(tc!=null){
tc=null;
}
}

}
//根据学号删除学生
public boolean deleteStudentsBySid(String sid) {
Transaction tc=null;
Session session=null;
try{
session=HibernateSessionFactory.getSessionFactory().getCurrentSession();
tc=session.beginTransaction();
Students stu=(Students) session.get(Students.class, sid);
session.delete(stu);
tc.commit();
return true;
}catch(Exception e){
e.printStackTrace();
tc.commit();
return false;
}finally{
if(tc!=null){
tc=null;
}
}
}
//添加学生
public boolean addStudents(Students stu) {
Transaction tc=null;;
try{
stu.setSid(getNewSid());
Session sessin=HibernateSessionFactory.getSessionFactory().getCurrentSession();
tc=sessin.beginTransaction();
sessin.save(stu);
tc.commit();
return true;
}catch(Exception e){
tc.commit();
e.printStackTrace();
return false;
}finally{
if(tc!=null){
tc=null;
}
}
}
//获取新增学生的学号
private String getNewSid(){
String sid=null;
Transaction tc=null;
String hql="";
try{
//首先从数据库中读取最大的学号 然后拼装学号
Session session=HibernateSessionFactory.getSessionFactory().getCurrentSession();
tc=session.beginTransaction();
hql="select max(sid) from Students";
Query query=session.createQuery(hql);
String temp=(String) query.uniqueResult();
tc.commit();
if(temp==null||"".equals(temp.trim())){
sid="s00000001";
}else{
int x=Integer.parseInt(temp.substring(1));
System.out.println(x);
temp=String.valueOf(++x);
//拼装学号为8为  不够前面补0
while(temp.length()<8){
temp="0"+temp;
}
sid="s"+temp;
}
return sid;
}catch(Exception e){
tc.commit();
e.printStackTrace();
return sid;
}finally{
if(tc!=null){
tc=null;
}
}
}
//更新学生信息
public boolean updateStudent(Students stu) {
Transaction tc=null;
try{
Session session=HibernateSessionFactory.getSessionFactory().getCurrentSession();
tc=session.beginTransaction();
session.update(stu);
tc.commit();
return true;
}catch (Exception e) {
e.printStackTrace();
tc.commit();
return false;
}

}

}

所有action的父类SuperAction 类，为了获得常用的内置对象，采用耦合IOC方式注入属性。继承ActionSupport 并实现ServletRequestAware，ServletResponseAware，ServletContextAware 。获取相应的request,response,session，这样的话，每个继承SuperAction 的类都能够使用request，response，session

package com.scx.action;

import javax.servlet.ServletContext;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

import org.apache.struts2.interceptor.ServletRequestAware;
import org.apache.struts2.interceptor.ServletResponseAware;
import org.apache.struts2.util.ServletContextAware;

import com.opensymphony.xwork2.ActionSupport;

//所有action动作的父类
public class SuperAction extends ActionSupport implements ServletRequestAware,
ServletResponseAware, ServletContextAware {
/**
*
*/
private static final long serialVersionUID = 1L;
protected HttpServletRequest request;// 请求对象
protected HttpServletResponse response;// 响应对象
protected HttpSession session;// 会话对象
protected ServletContext context;//全局对象

public void setServletContext(ServletContext context) {
this.context = context;

}

public void setServletResponse(HttpServletResponse response) {
this.response = response;

}

public void setServletRequest(HttpServletRequest request) {
this.request = request;
this.session = this.request.getSession();
}

}

UsersAction类，继承SuperAction并实现ModelDriven<Users>

package com.scx.action;

import org.apache.struts2.interceptor.validation.SkipValidation;

import com.opensymphony.xwork2.ModelDriven;
import com.scx.entity.Users;
import com.scx.service.UsersDao;
import com.scx.service.impl.UsersDaoImpl;
/**
* @author scx
*	用户动作类
*/
public class UsersAction extends SuperAction implements ModelDriven<Users>{
/**
*
*/
private static final long serialVersionUID = 1L;
private Users user=new Users();

//用户登录动作
public String login(){
UsersDao dao=new UsersDaoImpl();
if(dao.usersLogin(user)){
session.setAttribute("loginUserName", user.getUsername());
return "login_success";
}else{
return "login_failure";
}
}
//用户退出动作  跳过验证
@SkipValidation
public String logout(){
if(session.getAttribute("loginUserName")!=null){
session.removeAttribute("loginUserName");
}
return "logout_success";
}
public Users getModel() {
return user;
}
@Override
public void validate() {
if(user.getUsername()==null||"".equals(user.getUsername().trim())){
this.addFieldError("usernameError", "请输入帐号");
}
if(user.getPassword().length()<6){
this.addFieldError("passwordError", "密码不少于6位");
}
}
}

StudentsAction类，继承SuperAction并实现ModelDriven<Students>

package com.scx.action;

import java.util.List;

import com.opensymphony.xwork2.ModelDriven;
import com.scx.entity.Students;
import com.scx.service.StudentsDao;
import com.scx.service.impl.StudentsDaoImpl;
/**
* @author scx
*	学生信息动作类
*/
public class StudentsAction extends SuperAction implements ModelDriven<Students>{
/**
*
*/
private static final long serialVersionUID = 1L;

private Students student=new Students();
//查询所有学生
public String query(){
StudentsDao sdao=new StudentsDaoImpl();
List<Students> students=sdao.queryAllStudents();
if(students!=null&&students.size()>0){
session.setAttribute("students_list", students);
}else{
session.setAttribute("students_list", null);
}
return "query_success";
}
//删除学生
public String delete(){
StudentsDao sdao=new StudentsDaoImpl();
String sid=request.getParameter("sid");
sdao.deleteStudentsBySid(sid);
return "delete_success";
}
//添加学生
public String add(){
StudentsDao sdao=new StudentsDaoImpl();
sdao.addStudents(student);
return "add_success";
}
//获得要修改的学生的信息
public String modify(){
StudentsDao sdao=new StudentsDaoImpl();
Students stu=sdao.queryStudentsBySid(request.getParameter("sid"));
session.setAttribute("modify_students", stu);
return "student_modify";
}
//修改学生信息
public String update(){
StudentsDao sdao=new StudentsDaoImpl();
sdao.updateStudent(student);
return "update_success";
}
public Students getModel() {
return student;
}
}

struct.xml

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.1//EN" "http://struts.apache.org/dtds/struts-2.1.dtd">
<struts>
<package name="default" namespace="/" extends="struts-default">
</package>

<package name="users" namespace="/users" extends="default">
<action name="*_*" class="com.scx.action.{1}Action" method="{2}">
<result name="login_success">/users/Users_login_success.jsp</result>
<result name="login_failure">/users/Users_login.jsp</result>
<result name="logout_success">/users/Users_login.jsp</result>
<result name="input">/users/Users_login.jsp</result>
</action>
</package>
<package name="students" namespace="/students" extends="default">
<action name="*_*" class="com.scx.action.{1}Action" method="{2}">
<result name="query_success">/students/Students_query_success.jsp</result>
<result name="delete_success" type="chain">Students_query</result>
<result name="add_success" >/students/Students_add_success.jsp</result>
<result name="student_modify" >/students/Students_modify.jsp</result>
<result name="update_success" >/students/Students_modify_success.jsp</result>
</action>
</package>
</struts>


struct.xml.Flow





jsp代码就不发了。

jsp素材点击下载

所有代码点击下载