模型员工Employee — 部门Department
Java代码
package Domain;
public class Employee {
public int getId() {
return id;
}
public void setId(int id) {
thisid = id;
}
public String getName() {
return name;
}
public void setName(String name) {
thisname = name;
}
public Department getDepart() {
return depart;
}
public void setDepart(Department depart) {
thisdepart = depart;
}
private int id;
private String name;
private Department depart;
}
Java代码
package Domain;
import javautilSet;
public class Department {
public int getId() {
return id;
}
public void setId(int id) {
thisid = id;
}
public String getName() {
return name;
}
public void setName(String name) {
thisname = name;
}
public Set<Employee> getEmps() {
return emps;
}
public void setEmps(Set<Employee> emps) {
thisemps = emps;
}
private int id;
private String name;
private Set<Employee> emps ;
}
Xml代码
<?xml version=?>
<!DOCTYPE hibernatemapping PUBLIC
//Hibernate/Hibernate Mapping DTD //EN
mappingdtd>
<hibernatemapping package=Domain>
<class name=Employee table=employee>
<id name=id>
<generator class=native />
</id>
<property name=name unique=true/>
<manytoone name=depart column=depart_id/>
</class>
</hibernatemapping>
Xml代码
<?xml version=?>
<!DOCTYPE hibernatemapping PUBLIC
//Hibernate/Hibernate Mapping DTD //EN
mappingdtd>
<hibernatemapping package=Domain>
<class name=Department table=department>
<id name=id>
<generator class=native />
</id>
<property name=name unique=true/>
<set name=emps>
<key column=depart_id/>
<onetomany class=Employee/>
</set>
</class>
</hibernatemapping>
Java代码
package Dao;
import DomainEmployee;
public interface EmployeeDAO {
public void saveEmployee(Employee emp);
public Employee findEmployeeByName(String name);
public Employee findEmployeeById(int id);
public void updateEmployee(Employee emp);
public void removeEmployee(Employee emp);
}
Java代码
package Dao;
import DomainDepartment;
public interface DepartmentDAO {
public void saveDepartment(Department depart);
public Department findDepartmentByName(String name);
public Department findDepartmentById(int id);
public void updateDepartment(Department depart);
public void removeDepartment(Department depart);
}
Java代码
package DaoImpl;
import orghibernateHibernateException;
import orghibernateQuery;
import orghibernateSession;
import orghibernateTransaction;
import UtilshibernateUtil;
import DaoEmployeeDAO;
import DomainEmployee;
public class EmployeeDAOImpl implements EmployeeDAO {
// 保存员工
public void saveEmployee(Employee emp) {
Session s = null;
Transaction tx = null;
try{
s = hibernateUtilgetSession();
tx = sbeginTransaction();
ssave(emp);
mit();
}catch (HibernateException e) {
if(tx != null){
txrollback();
}
throw e;
}finally{
if(s != null){
sclose();
}
}
}
// 根据姓名查询员工
public Employee findEmployeeByName(String name) {
Session s = null ;
try{
s = hibernateUtilgetSession();
String hql = from Employee as emp where empname=:name;
Query query = screateQuery(hql);
querysetString(name name);
Employee emp = (Employee) queryuniqueResult();
return emp;
}finally{
if(s != null){
sclose();
}
}
}
// 根据员工id查询员工
public Employee findEmployeeById(int id) {
Session s = null ;
try{
s = hibernateUtilgetSession();
Employee emp = (Employee) sget(Employeeclass id);
return emp;
}finally{
if(s != null)
{
sclose();
}
}
}
// 更新员工信息
public void updateEmployee(Employee emp) {
Session s = null;
Transaction tx = null;
try{
s = hibernateUtilgetSession();
tx = sbeginTransaction();
supdate(emp);
mit();
}catch (HibernateException e) {
if(tx != null){
txrollback();
}
throw e;
}finally{
if(s != null){
sclose();
}
}
}
// 删除员工
public void removeEmployee(Employee emp) {
Session s = null;
Transaction tx = null;
try{
s = hibernateUtilgetSession();
tx = sbeginTransaction();
sdelete(emp);
mit();
}catch (HibernateException e) {
if(tx != null){
txrollback();
}
throw e;
}finally{
if(s != null){
sclose();
}
}
}
}
Java代码
package DaoImpl;
import orghibernateHibernateException;
import orghibernateQuery;
import orghibernateSession;
import orghibernateTransaction;
import DaoDepartmentDAO;
import DomainDepartment;
import UtilshibernateUtil;
public class DepartmentDAOImpl implements DepartmentDAO {
// 保存部门
public void saveDepartment(Department depart) {
Session s = null;
Transaction tx = null;
try{
s = hibernateUtilgetSession();
tx = sbeginTransaction();
ssave(depart);
mit();
}catch (HibernateException e) {
if(tx != null){
txrollback();
}
throw e;
}finally{
if(s != null){
sclose();
}
}
}
// 根据name查找部门
public Department findDepartmentByName(String name) {
Session s = null ;
try{
s = hibernateUtilgetSession();
String hql = from Department as depart where departname=:name;
Query query = screateQuery(hql);
querysetString(name name);
Department depart = (Department) queryuniqueResult();
return depart;
}finally{
if(s != null){
sclose();
}
}
}
// 根据id查找部门
public Department findDepartmentById(int id) {
Session s = null ;
try{
s = hibernateUtilgetSession();
Department depart = (Department) sget(Departmentclass id);
return depart;
}finally{
if(s != null)
{
sclose();
}
}
}
// 更新部门
public void updateDepartment(Department depart) {
Session s = null;
Transaction tx = null;
try{
s = hibernateUtilgetSession();
tx = sbeginTransaction();
supdate(depart);
mit();
}catch (HibernateException e) {
if(tx != null){
txrollback();
}
throw e;
}finally{
if(s != null){
sclose();
}
}
}
// 删除部门
public void removeDepartment(Department depart) {
Session s = null;
Transaction tx = null;
try{
s = hibernateUtilgetSession();
tx = sbeginTransaction();
sdelete(depart);
mit();
}catch (HibernateException e) {
if(tx != null){
txrollback();
}
throw e;
}finally{
if(s != null){
sclose();
}
}
}
}
Java代码
package DaoTest;
import orghibernateSession;
import orghibernateTransaction;
import UtilshibernateUtil;
import DomainDepartment;
import DomainEmployee;
public class ManyOneTest {
public static void main(String[] args) {
add();
}
public static Department add(){
Session s = null ;
Transaction tx = null;
try{
Department depart = new Department();
departsetName(xuan chuan bu);
Employee emp = new Employee();
empsetDepart(depart);// 对象模型建立两个对象间的关联关系
empsetName(zhang zuoqiang);
s = hibernateUtilgetSession();
tx = sbeginTransaction();
ssave(depart);
ssave(emp);
mit();
return depart;
}finally{
if(s != null){
sclose();
}
}
}
}
