package dao;
import java.io.Serializable;
import java.lang.reflect.ParameterizedType;
import java.lang.reflect.Type;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import javax.annotation.Resource;
import org.hibernate.Query;
import org.hibernate.SessionFactory;
import org.springframework.orm.hibernate3.support.HibernateDaoSupport;
/**
* BaseDaoImpl不能在类型未确定前直接实例化
* @author zh
* @param <T>
*/
public class BaseDaoImpl<T extends Serializable> extends HibernateDaoSupport implements IbaseDao<T> {
@Resource(name="sessionFactory")
public void setSupperSessionFactory(SessionFactory sessionFactory){
super.setSessionFactory(sessionFactory);
}
@SuppressWarnings("rawtypes")
private Class Tclass;
@SuppressWarnings("rawtypes")
public BaseDaoImpl(){
Type type = this.getClass().getGenericSuperclass();
if (type.toString().indexOf("BaseDao") != -1) {
ParameterizedType type1 = (ParameterizedType) type;
Type[] types = type1.getActualTypeArguments();
setTclass((Class) types[0]);
}else{
type = ((Class)type).getGenericSuperclass();
ParameterizedType type1 = (ParameterizedType) type;
Type[] types = type1.getActualTypeArguments();
setTclass((Class) types[0]);
}
}
/**
* 保存对象
*
* @param Object
*/
public void save(T t) {
//this.getHibernateTemplate().save(t)
getSession().save(t);
}
/**
* 更新对象内容
*
* @param Object
*/
public void update(T t) {
//this.getHibernateTemplate().update(t);
getSession().update(t);
}
/**
* 删除对象
* @param t
*/
public void delete(T t){
//this.getHibernateTemplate().delete(t);
getSession().delete(t);
}
public void deleteById(String hql, Object[] params){
Query query = this.getSession().createQuery(hql);
for (int i = 0; i < params.length; i++) {
query.setParameter(i, params[i]);
}
query.executeUpdate();
}
/**
* ͨ通过ID 得到对象
* @param Serializable
*/
@SuppressWarnings("unchecked")
public T get(Serializable id) {
//return (T) this.getHibernateTemplate().get(getTclass(), id);
return (T)getSession().get(getTclass(), id);
}
/**
* 取得所有对象
*
*/
@SuppressWarnings("unchecked")
public List<T> listAll() {
String hql = "from "+getTclass().getSimpleName();
return this.getSession().createQuery(hql).list();
}
/**
* hql解决方案
*
* @param String hql
*
* @param Object[] params
* 参数列表 顺序不能颠倒
*/
@SuppressWarnings("unchecked")
public List<T> listByHql(String hql, Object[] params) {
Query query = this.getSession().createQuery(hql);
if(null == params || params.length == 0){
return query.list();
}else{
for (int i = 0; i < params.length; i++) {
query.setParameter(i, params[i]);
}
}
return query.list();
}
/**
* 同类分页
*
* @param int firstResult
* 从第几条开始
* @param int maxResults
* 要取几条
*/
@SuppressWarnings({ "unchecked" })
public List<T> listFenYe(int firstResult, int maxResults) {
String hql = "from "+getTclass().getSimpleName();
Query query = this.getSession().createQuery(hql).setMaxResults(maxResults).setFirstResult(firstResult);
return query.list();
}
/**
* 取得行数
*/
public long getCount() {
String hql = "select count(*) from "+getTclass().getSimpleName();
return (Long) this.getSession().createQuery(hql).uniqueResult();
}
/**
* 懒加载load
*/
@SuppressWarnings("unchecked")
public T load(Serializable id) {
//return (T) this.getHibernateTemplate().load(this.getClass(), id);
return (T) getSession().load(this.getClass(), id);
}
@SuppressWarnings("rawtypes")
public Class getTclass() {
return Tclass;
}
@SuppressWarnings("rawtypes")
public void setTclass(Class tclass) {
Tclass = tclass;
}
@SuppressWarnings("unchecked")
public T getByHql(String hql, Object[] params) {
Query query = this.getSession().createQuery(hql);
for (int i = 0; i < params.length; i++) {
query.setParameter(i, params[i]);
}
return (T) query.uniqueResult();
}
@SuppressWarnings("unchecked")
public List<T> getByHqlNotIn(String hql, Object[] params) {
System.out.println("Tclass:"+Tclass);
Query query = this.getSession().createSQLQuery(hql).addEntity(Tclass);
List<T> list = null ;
for (int i = 0; i < params.length; i++) {
query.setParameter(i, params[i]);
}
list = query.list();
return list;
}
@SuppressWarnings("unchecked")
public List<T> listFenYeAddparams(int firstResult, int maxResults,
String hql, Object[] params) {
Query query = this.getSession().createQuery(hql);
List<T> list = null ;
if(null == params || params.length == 0){
list = query.setMaxResults(maxResults).setFirstResult(firstResult).list();
}
if(null != params || params.length != 0){
for (int i = 0; i < params.length; i++) {
System.out.println("params:"+params[i]);
query.setParameter(i, params[i]);
}
list = query.setMaxResults(maxResults).setFirstResult(firstResult).list();
}
return list;
}
@SuppressWarnings("unchecked")
public List<T> listFenYeNotIn(int firstResult, int maxResults,
String hql, Object[] params) {
Query query = this.getSession().createSQLQuery(hql).addEntity(Tclass);
List<T> list = null ;
if(null == params || params.length == 0){
list = query.setMaxResults(maxResults).setFirstResult(firstResult).list();
}
if(null != params || params.length != 0){
for (int i = 0; i < params.length; i++) {
System.out.println("params:"+params[i]);
query.setParameter(i, params[i]);
}
list = query.setMaxResults(maxResults).setFirstResult(firstResult).list();
}
return list;
}
@SuppressWarnings("unchecked")
public List<T> listNotIn(String hql, Object[] params) {
Query query = this.getSession().createSQLQuery(hql).addEntity(Tclass);
List<T> list = null ;
if(null != params || params.length != 0){
for (int i = 0; i < params.length; i++) {
System.out.println("params:"+params[i]);
query.setParameter(i, params[i]);
}
}
list = query.list();
return list;
}
public long getCount(String hql, Object[] params) {
Query query = this.getSession().createQuery(hql);
if(null != params || params.length != 0){
for (int i = 0; i < params.length; i++) {
query.setParameter(i, params[i]);
}
}
return (Long) query.uniqueResult();
}
@SuppressWarnings("unchecked")
public List<T> queryPage(Map map,int firstResult, int maxResults,
String hql) {
StringBuffer buffer = new StringBuffer(hql);
StringBuffer wherestring = new StringBuffer();
Iterator paramnames = map.keySet().iterator();
while(paramnames .hasNext())
{
String paramname = (String) paramnames.next();
String value = null;
value = String.valueOf(map.get(paramname));
if(value!=null)
{
value = value.trim();
if(value.equals(""))
{
continue;
}
}
if(wherestring.length()==0)
{
wherestring.append(" where ");
}else{
wherestring.append(" and ");
}
wherestring.append(paramname).append("=").append(value);
buffer.append(wherestring);
}
Query query = this.getSession().createQuery(buffer.toString());
System.out.println(buffer.toString());
List<T> list = query.setMaxResults(maxResults).setFirstResult(firstResult).list();
return list;
}
public long getCount(String hql, Map map) {
StringBuffer buffer = new StringBuffer(hql);
StringBuffer wherestring = new StringBuffer();
Iterator paramnames = map.keySet().iterator();
while(paramnames .hasNext())
{
String paramname = (String) paramnames.next();
String value = null;
//value = (String) map.get(paramname);
value = String.valueOf(map.get(paramname));
if(value!=null)
{
value = value.trim();
if(value.equals(""))
{
continue;
}
}
if(wherestring.length()==0)
{
wherestring.append(" where ");
}else{
wherestring.append(" and ");
}
wherestring.append(paramname).append("=").append(value);
buffer.append(wherestring);
}
System.out.println(buffer.toString());
Query query = this.getSession().createQuery(buffer.toString());
return (Long) query.uniqueResult();
}
public int update(String hql, Object[] params) {
Query query = this.getSession().createQuery(hql);
if(params == null){
return query.executeUpdate();
}
for (int i = 0; i < params.length; i++) {
query.setParameter(i, params[i]);
}
return query.executeUpdate();
}
public void save(String hql, Object[] params) {
Query query = this.getSession().createQuery(hql);
for (int i = 0; i < params.length; i++) {
query.setParameter(i, params[i]);
}
query.executeUpdate();
}
}
