引入需要的jar包

@Entitypublic class Teacher {    @Id    @GeneratedValue(strategy=GenerationType.IDENTITY)  private   Integer  tId;  //编号  private   Integer  tAge; //年龄  private   String  tName;//姓名  private   Date  tDate;      @Overridepublic String toString() {    return "Teacher [tId=" + tId + ", tage=" + tAge + ", tName=" + tName            + ", tDate=" + tDate + "]";}public Teacher() {    super();}public Teacher(Integer tId, Integer tage, String tName, Date tDate) {    super();    this.tId = tId;    this.tAge = tage;    this.tName = tName;    this.tDate = tDate;}public Integer gettId() {    return tId;}public void settId(Integer tId) {    this.tId = tId;}public Integer gettAge() {    return tAge;}public void settAge(Integer tAge) {    this.tAge = tAge;}public String gettName() {    return tName;}public void settName(String tName) {    this.tName = tName;}public Date gettDate() {    return tDate;}public void settDate(Date tDate) {    this.tDate = tDate;}  }

public interface TeacherDao {    //新增    void  addTeacher(Teacher teacher);     //删除    void  deleteTeacher(Teacher teacher);    //修改    void  updateTeacher(Teacher teacher);    //查询    List
      
         findTeachers();    //根据ID查询指定的teacher    Teacher findById(Integer id);    }
      

@Repository("teacherDao")public class TeacherDaoImpl implements TeacherDao {    @Autowired   // byType    private SessionFactory sessionFactory;        // 新增    public void addTeacher(Teacher teacher) {        sessionFactory.getCurrentSession().save(teacher);    }    // 删除    public  void deleteTeacher(Teacher teacher){        sessionFactory.getCurrentSession().delete(teacher);    }    // 修改    public void updateTeacher(Teacher teacher){        sessionFactory.getCurrentSession().update(teacher);    }    // 查询    public List
      
        findTeachers(){        return sessionFactory.getCurrentSession().createQuery("from  Teacher").list();    }        public Teacher findById(Integer id) {        //OpenSessionInView        //return (Teacher)sessionFactory.getCurrentSession().get(Teacher.class, id);        return (Teacher) sessionFactory.getCurrentSession().load(Teacher.class, id);    }        public SessionFactory getSessionFactory() {        return sessionFactory;    }    public void setSessionFactory(SessionFactory sessionFactory) {        this.sessionFactory = sessionFactory;    }        }
      

public interface TeacherService {    // 新增    void addTeacher(Teacher teacher);    // 删除    void deleteTeacher(Teacher teacher);    // 修改    void updateTeacher(Teacher teacher);    // 查询    List
      
        findTeachers();           //根据ID查询指定的teacher        Teacher findById(Integer id);}
      

@Service("teacherService")public class TeacherServiceImpl implements TeacherService {    @Resource(name="teacherDao")   //byName    private TeacherDao dao;        //新增    @Transactional    public void addTeacher(Teacher teacher) {       dao.addTeacher(teacher);    }    //删除    @Transactional    public void deleteTeacher(Teacher teacher) {        dao.deleteTeacher(teacher);    }    //修改    @Transactional    public void updateTeacher(Teacher teacher) {        dao.updateTeacher(teacher);    }    //查询所有    @Transactional(readOnly=true)    public List
      
        findTeachers() {       return    dao.findTeachers();    }        //查询指定的教师    @Transactional(readOnly=true)    public Teacher findById(Integer id) {        return dao.findById(id);    }        public TeacherDao getDao() {        return dao;    }    public void setDao(TeacherDao dao) {        this.dao = dao;    }        }
      

@Namespace("/")@ParentPackage("struts-default")@Componentpublic class AddAction extends ActionSupport {    private  String  name;    private  Integer  age;    private  Integer  id;    @Autowired    @Qualifier("teacherService")   //@Resource(name="teacherService")     private TeacherService  service;         public  String add(){         System.out.println("进入ladd");         Teacher teacher=new Teacher();         teacher.settAge(age);         teacher.settName(name);         service.addTeacher(teacher);         return  SUCCESS;     }          @Action(value="AddServlet",results={@Result(location="/success.jsp")})     public  String find(){         Teacher teacher=service.findById(id);         System.out.println(teacher);         return  SUCCESS;     }    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 TeacherService getService() {        return service;    }    public void setService(TeacherService service) {        this.service = service;    }    public Integer getId() {        return id;    }    public void setId(Integer id) {        this.id = id;    }     }

      
          
           
               
                
                
                
            
           
           
                   
            
               
                 
                 
                 
                 
                 
                  
                     
          
           update
                      
          
           true
                      
          
           true
                      
                      
          
           org.springframework.orm.hibernate5.SpringSessionContext
                      
          
           org.hibernate.dialect.MySQLInnoDBDialect
                    
                  
             
        
        
       
         
           
          
         
         
        
      

      
        
             
          
           
        
         org.springframework.web.context.ContextLoaderListener
           
         
          
           
        
         contextConfigLocation
            
        
         classpath:applicationContext.xml
          
                   
          
          
        
         open
            
        
         org.springframework.orm.hibernate5.support.OpenSessionInViewFilter
          
            
            
        
         open
             
        
         /*
           
              
            
          
        
         struts2
            
        
         org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter
          
            
            
        
         struts2
             
        
         /*
           
                  
           
        
         AddServlet1
            
        
         cn.bdqn.servlet.AddServlet
          
         
           
        
         AddServlet
            
        
         /AddServlet
          
           
           
        
         index.jsp
          
       
      

jdbc.properties文件自己定义即可