使用IDEA搭建SSH项目

三层架构如下：

pom.xml文件导入相应jar包：

  4.0.0
  war

  studentMsg
  com.accp
  studentMsg
  1.0-SNAPSHOT

    
        4.1.12.Final
        2.1.6
    

    
        
            org.aspectj
            aspectjweaver
            1.8.8
        

        
        
            org.hibernate
            hibernate-core
            ${hibernate-version}
        
        
            org.hibernate.common
            hibernate-commons-annotations
            4.0.5.Final
        

        
        
            org.apache.struts
            struts2-core
            ${struts.version}
        
        
            org.apache.struts.xwork
            xwork-core
            2.3.34
        

        
        
            com.oracle
            ojdbc6
            11.2.0.1.0
        
        
        
            javax.servlet
            javax.servlet-api
            3.0.1
            provided
        

        
            javax.servlet
            jstl
            1.2
        

    

连接数据库(我用的是Oracle)：

数据访问层学生实体类代码：

package com.accp.entity;


public class Student {

  private Integer id;
  private String name;
  private Integer age;
  private String gender;
  private String telephone;
  private String email;
  //private Integer classid;
    private Classes classes;//班级外键


    public Integer getId() {
        return id;
    }

    public void setId(Integer id) {
        this.id = id;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public Integer getAge() {
        return age;
    }

    public void setAge(Integer age) {
        this.age = age;
    }

    public String getGender() {
        return gender;
    }

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

    public String getTelephone() {
        return telephone;
    }

    public void setTelephone(String telephone) {
        this.telephone = telephone;
    }

    public String getEmail() {
        return email;
    }

    public void setEmail(String email) {
        this.email = email;
    }

    public Classes getClasses() {
        return classes;
    }

    public void setClasses(Classes classes) {
        this.classes = classes;
    }
}

数据访问层班级实体类：

package com.accp.entity;


public class Classes {

  private Integer id;
  private String name;


    public Integer getId() {
        return id;
    }

    public void setId(Integer id) {
        this.id = id;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }
}

会话工厂代码：

package com.accp.util;

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

public class HibernateUtil {
    private static SessionFactory sessionFactory ;

    static {
        Configuration conf = new Configuration().configure("hibernate.cfg.xml");
        sessionFactory = conf.buildSessionFactory();
    }

    public static Session openSession(){
        return sessionFactory.getCurrentSession();
    }
}

过滤器代码：

package com.accp.util;

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

import javax.servlet.*;
import java.io.IOException;


public class MyFilter implements Filter {


    public void init(FilterConfig filterConfig) throws ServletException {

    }

    public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
        request.setCharacterEncoding("utf-8");
        response.setCharacterEncoding("utf-8");
        response.setContentType("text/html; charset=UTF-8");

        Session session = HibernateUtil.openSession();
        Transaction transaction = session.beginTransaction();
        try {
            chain.doFilter(request,response);
            transaction.commit();
        }catch (Exception e){
            transaction.rollback();
        }

    }

    public void destroy() {

    }
}

学生Dao层代码：

package com.accp.dao;

import com.accp.entity.Student;

import java.io.Serializable;
import java.util.List;

public interface StudentDao {

    List queryStudent(Student student);

    Serializable addStudent(Student student);

}

学生DaoImpl实现代码

package com.accp.dao.impl;

import com.accp.dao.StudentDao;
import com.accp.entity.Student;
import com.accp.util.HibernateUtil;
import org.hibernate.Criteria;
import org.hibernate.Session;

import java.io.Serializable;
import java.util.List;

public class StudentDaoImpl implements StudentDao {
    public List queryStudent(Student student) {
        Session session = HibernateUtil.openSession();
        Criteria criteria = session.createCriteria(Student.class);
        return criteria.list();
    }

    public Serializable addStudent(Student student) {
        Session session = HibernateUtil.openSession();
        Serializable save = session.save(student);
        return save;
    }
}

班级Dao层代码：

package com.accp.dao;

import com.accp.entity.Classes;

import java.util.List;

public interface ClassesDao {

    List queryClasses(Classes classes);

}

班级DaoImpl实现代码

package com.accp.dao.impl;

import com.accp.dao.ClassesDao;
import com.accp.entity.Classes;
import com.accp.util.HibernateUtil;
import org.hibernate.Criteria;
import org.hibernate.Session;

import java.util.List;

public class ClassesDaoImpl implements ClassesDao {
    public List queryClasses(Classes classes) {
        Session session = HibernateUtil.openSession();
        Criteria criteria = session.createCriteria(Classes.class);
        return criteria.list();
    }
}

学生业务逻辑层代码：

package com.accp.service;

import com.accp.entity.Student;

import java.io.Serializable;
import java.util.List;

public interface StudentService {

    List queryStudent(Student student);

    boolean addStudent(Student student);
}

学生业务逻辑层实现代码：

package com.accp.service.impl;

import com.accp.dao.StudentDao;
import com.accp.dao.impl.StudentDaoImpl;
import com.accp.entity.Student;
import com.accp.service.StudentService;

import java.util.List;

public class StudentServiceImpl implements StudentService {
    private StudentDao studentDao = new StudentDaoImpl();

    public List queryStudent(Student student) {
        return studentDao.queryStudent(student);
    }

    public boolean addStudent(Student student) {
        if(studentDao.addStudent(student)!=null){
            return true;
        }
        return false;
    }
}

班级业务逻辑层代码：

package com.accp.service;

import com.accp.entity.Classes;

import java.util.List;

public interface ClassesService {

    List queryClasses(Classes classes);
}

班级业务逻辑层实现代码：

package com.accp.service.impl;

import com.accp.dao.ClassesDao;
import com.accp.dao.impl.ClassesDaoImpl;
import com.accp.entity.Classes;
import com.accp.service.ClassesService;

import java.util.List;

public class ClassesServiceImpl implements ClassesService {
    private ClassesDao classesDao = new ClassesDaoImpl();

    public List queryClasses(Classes classes) {
        return classesDao.queryClasses(classes);
    }
}

学生hibernate的映射配置文件(Student.hbm.xml)代码：

    
        
            
                seq_student_id
            
        

        
        
        
        
        

        
    

班级hibernate的映射配置文件(Classes.hbm.xml)代码：

    
        
            
                seq_classes_id
            
        

        
    

连接数据库配置文件(hibernate.cfg.xml)代码：

    
        org.hibernate.dialect.Oracle10gDialect
        jdbc:oracle:thin:@localhost:1521:orcl
        oracle.jdbc.driver.OracleDriver
        scott
        orcl
        true
        thread

        //映射文件
        
        
    

struts.xml配置代码：

    
    

        
            add.jsp
        

       
           sStudent.action
           sClasses.action
       

        
            show.jsp
        
    

web.xml配置代码：

    
        openSessionInView
        com.accp.util.MyFilter
    
    
        openSessionInView
        *.action
    

    
        strut2
        org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter
    
    
        strut2
        /*
    

    
        login.jsp
    

控制层action学生代码：

package com.accp.action;

import com.accp.entity.Student;
import com.accp.service.StudentService;
import com.accp.service.impl.StudentServiceImpl;
import com.opensymphony.xwork2.ActionSupport;

import java.util.List;

public class StudentAction extends ActionSupport {
    private Student student;
    private List studentList;
    private StudentService studentService = new StudentServiceImpl();

    public String queryStudent(){
        studentList = studentService.queryStudent(student);
        return SUCCESS;
    }

    public String addStudent(){
        if(studentService.addStudent(student)){
            return SUCCESS;
        }
        return INPUT;
    }


    public Student getStudent() {
        return student;
    }

    public void setStudent(Student student) {
        this.student = student;
    }

    public List getStudentList() {
        return studentList;
    }

    public void setStudentList(List studentList) {
        this.studentList = studentList;
    }
}

控制层action班级代码：

package com.accp.action;

import com.accp.entity.Classes;
import com.accp.service.ClassesService;
import com.accp.service.impl.ClassesServiceImpl;
import com.opensymphony.xwork2.ActionSupport;

import java.util.List;

public class ClassesAction extends ActionSupport {
    private Classes classes;
    private ClassesService classesService = new ClassesServiceImpl();
    private List classesList;

    public String queryClass(){
        classesList = classesService.queryClasses(classes);
        return SUCCESS;
    }


    public Classes getClasses() {
        return classes;
    }

    public void setClasses(Classes classes) {
        this.classes = classes;
    }

    public List getClassesList() {
        return classesList;
    }

    public void setClassesList(List classesList) {
        this.classesList = classesList;
    }
}

显示学生信息页面代码：

<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%@ taglib prefix="s" uri="/struts-tags" %>


    


学员信息列表

        

    
    

        
添加学员
    
    

        
编号
        
姓名
        
性别
        
年龄
        
电话
        
email
        
班级
    
    

            
${id}
            
${name}
            
${gender}
            
${age}
            
${telephone}
            
${email}
            
${classes.name}
        
    

插入学生信息页面代码：

<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%@ taglib prefix="s" uri="/struts-tags" %>


    



    

        

            

                
学员信息添加
            
        
        

            

                姓名：
            
        
        

            

                性别：
            
        
        

            

                年龄：
            
        
        

            

                电话：
            
        
        

            

                email：
            
        
        

            

                班级：
                请选择
                
                    ${name}
                
            
            
        
        

            

                  
                
            
        
    

配置tomcat启动项目：

运行项目：