Hibernate实现增删改查
- /**
- *
- * @author fly.zhou
- */
- public interface IBaseDao {
- //增加对应实体的一条记录
- public boolean save(Object o);
- //更新对应实体的一条记录
- public boolean update(Object o);
- //增加或者更新对应实体的一条记录
- public boolean saveOrUpdate(Object o);
- //保存一系列对象集合
- public boolean saveOrUpdateAll(Collection l);
- //删除对应实体的一条记录
- public boolean delete(Object o);
- //根据id删除对应实体的一条记录
- public boolean delete(Class c, Serializable id);
- //执行hql语句删除一条记录
- public Integer delete(String hql, Object... values);
- //删除一系列数据
- public boolean deleteAll(Collection l);
- //执行hql语句查找
- public List find(String hql);
- //分页查询,多参数条件
- public List find(String hql, DataGridReq dgr, List values);
- //分页查询,多参数条件
- public List find(String hql, DataGridReq dgr, Object... values);
- //不带分页查询,多参数条件
- public List find(String hql, Object... values);
- //不带分页查询,多参数条件
- public boolean update(String hql, Object... values);
- //根据主键ID查询对应实体的一条记录
- public Object get(Class clazz, Serializable id);
- //获取某实体对象
- public Object load(Class c, Serializable id);
- //获取总记录数
- public Long total(String hql, List values);
- //获取总记录数
- public Long total(String hql, Object... values);
- //更新对应实体的某一条记录
- public boolean updateOneByProperty(Class clazz, Serializable id, String pName, Object pValue);
- //更新对应实体的某几条记录
- public boolean updateOneByPropertys(Class clazz, Serializable id, List<String> pName, List<Object> pValue);
- //更新对应实体的某几条记录(封装成map)
- public boolean updateOneByPropertys(Class clazz, Serializable id, Map<String, Object> map);
- //根据属性名以及对应的属性值查找一条记录
- public Object getSingleByProperty(Class clazz, String pName, Object pValue);
- //判断是否有对应的属性名和属性值存在,存在返回true
- public boolean ifHasOneByProperty(Class clazz, String pName, Object pValue);
- //根据一系列属性以及对应的属性值查询一条记录
- public Object getSingleByPropertys(Class clazz, List<String> pName, List<Object> pValue);
- //判断是否有一系列对应的属性名和属性值存在,存在返回true
- public boolean ifHasOneByPropertys(Class clazz, List<String> pName, List<Object> pValue);
- //根据一系列属性以及对应的属性值(封装成Map)查询一条记录
- public Object getSingleByPropertys(Class clazz, Map<String, Object> map);
- //判断是否有一系列对应的属性名和属性值(封装成Map)存在,存在返回true
- public boolean ifHasOneByPropertys(Class clazz, Map<String, Object> map);
- //通过某一对应的属性名和属性值,查询某一个属性的值
- public Object getValueByPropertys(Class clazz, Map<String, Object> map, String selectName);
- //通过一系列对应的属性名和属性值,查询某一个属性的值
- public Object getValueByProperty(Class clazz, String pName, Object pValue, String selectName);
- //通过一系列对应的属性名和属性值,查询某一个属性的值
- public Object getValueByPropertys(Class clazz, List<String> pNames, List<Object> pValues, String selectName);
- //查询对应实体的所有记录
- public List<Object> getObjects(Class clazz);
- //查询符合属性名以及对应的属性值的一系列记录
- public List<Object> getObjectsByProperty(Class clazz, String pName, Object pValue);
- //根据任意属性查询名以及对应的属性值的一系列记录
- public List<Object> getObjectsByAnyProperty(Class clazz, List<String> pName, List<Object> pValue);
- //查询符合一系列属性名以及对应的属性值的一系列记录
- public List<Object> getObjectsByPropertys(Class clazz, List<String> pName, List<Object> pValue);
- //根据某属性对应的属性值在某一范围内的一系列记录
- public List<Object> getObjectsByProperty(Class clazz, String pName, String operator, Object pValue);
- //根据某属性对应的属性值在某一范围内的一系列记录
- public List<Object> getObjectsByPropertys(Class clazz, List<String> pName, List<String> operator, List<Object> pValue);
- }
2》接口的实现 BaseDaoImpl.java
[java] view plaincopy
- public class BaseDaoImpl implements IBaseDao {
- private static final Logger logger = Logger.getLogger(BaseDaoImpl.class);
- private HibernateTemplate hibernateTemplate;
- public HibernateTemplate getHibernateTemplate() {
- hibernateTemplate.setCacheQueries(true);// 开启二级查询缓存
- return hibernateTemplate;
- }
- @Autowired
- public void setHibernateTemplate(HibernateTemplate hibernateTemplate) {
- this.hibernateTemplate = hibernateTemplate;
- }
- @Override
- public boolean delete(Object o) {
- // logger.info("删除");
- try {
- this.getHibernateTemplate().delete(o);
- return true;
- } catch (Exception e) {
- return false;
- }
- }
- @Override
- public boolean delete(Class c, Serializable id) {
- // logger.info("删除");
- try {
- this.getHibernateTemplate().delete(get(c, id));
- return true;
- } catch (Exception e) {
- return false;
- }
- }
- @Override
- public Integer delete(final String hql, final Object... values) {
- return this.getHibernateTemplate().execute(new HibernateCallback<Integer>() {
- @Override
- public Integer doInHibernate(Session session) throws HibernateException, SQLException {
- Query q = session.createQuery(hql);
- if (values != null && values.length > 0) {
- for (int i = 0; i < values.length; i++) {
- q.setParameter(i, values[i]);
- }
- }
- return q.executeUpdate();
- }
- });
- }
- @Override
- public boolean deleteAll(Collection l) {
- // logger.info("删除");
- try {
- this.getHibernateTemplate().deleteAll(l);
- return true;
- } catch (Exception e) {
- return false;
- }
- }
- @Override
- public boolean update(Object o) {
- // logger.info("更新");
- try {
- this.getHibernateTemplate().update(o);
- return true;
- } catch (Exception e) {
- e.printStackTrace();
- return false;
- }
- }
- @Override
- public boolean save(Object o) {
- // logger.info("保存");
- try {
- this.getHibernateTemplate().save(o);
- return true;
- } catch (Exception e) {
- return false;
- }
- }
- @Override
- public boolean saveOrUpdate(Object o) {
- try {
- this.getHibernateTemplate().saveOrUpdate(o);
- return true;
- } catch (Exception e) {
- return false;
- }
- }
- @Override
- public boolean saveOrUpdateAll(Collection l) {
- // logger.info("编辑");
- try {
- this.getHibernateTemplate().saveOrUpdateAll(l);
- return true;
- } catch (Exception e) {
- return false;
- }
- }
- @Override
- public List find(String hql) {
- // logger.info("查询");
- return this.getHibernateTemplate().find(hql);
- }
- @Override
- public List find(final String hql, final DataGridReq dgr, final List values) {
- return this.getHibernateTemplate().execute(new HibernateCallback<List>() {
- @Override
- public List doInHibernate(Session session) throws HibernateException, SQLException {
- Query q = session.createQuery(hql);
- if (values != null && values.size() > 0) {
- for (int i = 0; i < values.size(); i++) {
- q.setParameter(i, values.get(i));
- }
- }
- if (dgr == null) {
- return q.list();
- }
- return q.setFirstResult(dgr.getStart()).setMaxResults(dgr.getLimit() * dgr.getPage()).list();
- }
- });
- }
- @Override
- public List find(final String hql, final DataGridReq dgr, final Object... values) {
- return this.getHibernateTemplate().execute(new HibernateCallback<List>() {
- @Override
- public List doInHibernate(Session session) throws HibernateException, SQLException {
- Query q = session.createQuery(hql);
- if (values != null && values.length > 0) {
- for (int i = 0; i < values.length; i++) {
- q.setParameter(i, values[i]);
- }
- }
- if (dgr == null) {
- return q.list();
- }
- return q.setFirstResult(dgr.getStart()).setMaxResults(dgr.getLimit() * dgr.getPage()).list();
- }
- });
- }
- @Override
- public List find(String hql, Object... values) {
- return this.getHibernateTemplate().find(hql, values);
- }
- @Override
- public boolean update(final String hql, final Object... values) {
- try {
- this.getHibernateTemplate().bulkUpdate(hql, values);
- return true;
- } catch (Exception e) {
- return false;
- }
- }
- @Override
- public Object get(Class c, Serializable id) {
- return this.getHibernateTemplate().get(c, id);
- }
- @Override
- public Object load(Class c, Serializable id) {
- return this.getHibernateTemplate().load(c, id);
- }
- @Override
- public Long total(final String hql, final List values) {
- return this.getHibernateTemplate().execute(new HibernateCallback<Long>() {
- @Override
- public Long doInHibernate(Session session) throws HibernateException, SQLException {
- Query q = session.createQuery(hql);
- if (values != null && values.size() > 0) {
- for (int i = 0; i < values.size(); i++) {
- q.setParameter(i, values.get(i));
- }
- }
- return (Long) q.uniqueResult();
- }
- });
- }
- @Override
- public Long total(final String hql, final Object... values) {
- return this.getHibernateTemplate().execute(new HibernateCallback<Long>() {
- @Override
- public Long doInHibernate(Session session) throws HibernateException, SQLException {
- Query q = session.createQuery(hql);
- if (values != null && values.length > 0) {
- for (int i = 0; i < values.length; i++) {
- q.setParameter(i, values[i]);
- }
- }
- return (Long) q.uniqueResult();
- }
- });
- }
- @Override
- public boolean updateOneByProperty(Class clazz, Serializable id, String pName, Object pValue) {
- String hql = "update " + clazz.getName() + " entity set entity." + pName + " = '" + pValue + "' where entity.id = " + id;
- getHibernateTemplate().bulkUpdate(hql);
- return true;
- }
- @Override
- public boolean updateOneByPropertys(Class clazz, Serializable id, List<String> pName, List<Object> pValue) {
- String hql = "update " + clazz.getName() + " entity set entity.";
- int maxIndex = pName.size() - 1;
- for (int i = 0; i < maxIndex; i++) {
- hql += pName.get(i) + " = '" + pValue.get(i) + "', entity.";
- }
- hql += pName.get(maxIndex) + " = '" + pValue.get(maxIndex) + "'where entity.id = " + id;
- System.out.println(hql);
- getHibernateTemplate().bulkUpdate(hql);
- return true;
- }
- @Override
- public boolean updateOneByPropertys(Class clazz, Serializable id, Map<String, Object> map) {
- String hql = "update " + clazz.getName() + " entity set entity.";
- Set set = map.entrySet();
- if (set != null) {
- Iterator iterator = set.iterator();
- while (iterator.hasNext()) {
- Entry entry = (Entry) iterator.next();
- Object key = entry.getKey();
- Object value = entry.getValue();
- hql += key + " = '" + value + "' and entity.";
- }
- }
- hql = hql.substring(0, hql.length() - 12);
- hql += "'where entity.id = " + id;
- System.out.println(hql);
- getHibernateTemplate().bulkUpdate(hql);
- return true;
- }
- /**
- * 根据属性查询
- *
- * @param clazz
- * @param pName
- * @param pValue
- * @return
- */
- @Override
- public Object getSingleByProperty(Class clazz, String pName, Object pValue) {
- String hql = "from " + clazz.getName() + " entity where entity." + pName + " = '" + pValue + "'";
- List<Object> os = getHibernateTemplate().find(hql);
- if (os != null && !os.isEmpty()) {
- return os.get(0);
- } else {
- return null;
- }
- }
- /**
- * 根据属性查询
- *
- * @param clazz
- * @param pName
- * @param pValue
- * @return
- */
- @Override
- public boolean ifHasOneByProperty(Class clazz, String pName, Object pValue) {
- String hql = "from " + clazz.getName() + " entity where entity." + pName + " = '" + pValue + "'";
- List<Object> os = getHibernateTemplate().find(hql);
- if (os != null && !os.isEmpty()) {
- return true;
- } else {
- return false;
- }
- }
- /**
- * 根据属性查询
- *
- * @param clazz
- * @param pName
- * @param pValue
- * @return
- */
- @Override
- public List<Object> getObjectsByAnyProperty(Class clazz, List<String> pName, List<Object> pValue) {
- String hql = "from " + clazz.getName() + " entity where entity.";
- int maxIndex = pName.size() - 1;
- for (int i = 0; i < maxIndex; i++) {
- hql += pName.get(i) + " = '" + pValue.get(i) + "' or entity.";
- }
- hql += pName.get(maxIndex) + " = '" + pValue.get(maxIndex) + "'";
- System.out.println(hql);
- List<Object> os = getHibernateTemplate().find(hql);
- if (os != null && !os.isEmpty()) {
- return os;
- } else {
- return null;
- }
- }
- @Override
- public boolean ifHasOneByPropertys(Class clazz, List<String> pName, List<Object> pValue) {
- String hql = "from " + clazz.getName() + " entity where entity.";
- int maxIndex = pName.size() - 1;
- for (int i = 0; i < maxIndex; i++) {
- hql += pName.get(i) + " = '" + pValue.get(i) + "' and entity.";
- }
- hql += pName.get(maxIndex) + " = '" + pValue.get(maxIndex) + "'";
- System.out.println(hql);
- List<Object> os = getHibernateTemplate().find(hql);
- if (os != null && !os.isEmpty()) {
- return true;
- } else {
- return false;
- }
- }
- @Override
- public Object getSingleByPropertys(Class clazz, List<String> pName, List<Object> pValue) {
- String hql = "from " + clazz.getName() + " entity where entity.";
- int maxIndex = pName.size() - 1;
- for (int i = 0; i < maxIndex; i++) {
- hql += pName.get(i) + " = '" + pValue.get(i) + "' and entity.";
- }
- hql += pName.get(maxIndex) + " = '" + pValue.get(maxIndex) + "'";
- System.out.println(hql);
- List<Object> os = getHibernateTemplate().find(hql);
- if (os != null && !os.isEmpty()) {
- return os.get(0);
- } else {
- return null;
- }
- }
- @Override
- public Object getSingleByPropertys(Class clazz, Map<String, Object> map) {
- String hql = "from " + clazz.getName() + " entity where entity.";
- Set set = map.entrySet();
- if (set != null) {
- Iterator iterator = set.iterator();
- while (iterator.hasNext()) {
- Entry entry = (Entry) iterator.next();
- Object key = entry.getKey();
- Object value = entry.getValue();
- hql += key + " = '" + value + "' and entity.";
- }
- }
- hql = hql.substring(0, hql.length() - 12);
- System.out.println("hql = " + hql);
- List<Object> os = getHibernateTemplate().find(hql);
- if (os != null && !os.isEmpty()) {
- return os.get(0);
- } else {
- return null;
- }
- }
- @Override
- public boolean ifHasOneByPropertys(Class clazz, Map<String, Object> map) {
- String hql = "from " + clazz.getName() + " entity where entity.";
- Set set = map.entrySet();
- if (set != null) {
- Iterator iterator = set.iterator();
- while (iterator.hasNext()) {
- Entry entry = (Entry) iterator.next();
- Object key = entry.getKey();
- Object value = entry.getValue();
- hql += key + " = '" + value + "' and entity.";
- }
- }
- hql = hql.substring(0, hql.length() - 12);
- List<Object> os = getHibernateTemplate().find(hql);
- if (os != null && !os.isEmpty()) {
- return true;
- } else {
- return false;
- }
- }
- /**
- * 查询所有
- */
- @Override
- public List<Object> getObjects(Class clazz) {
- String hql = "from " + clazz.getName();
- List list = getHibernateTemplate().find(hql);
- return list;
- }
- /**
- * 根据属性查询 全部
- *
- * @param clazz
- * @param pName
- * @param pValue
- * @return
- */
- @Override
- public List<Object> getObjectsByProperty(Class clazz, String pName, Object pValue) {
- String hql = "from " + clazz.getName() + " entity where entity." + pName + " = '" + pValue + "'";
- return getHibernateTemplate().find(hql);
- }
- @Override
- public List<Object> getObjectsByPropertys(Class clazz, List<String> pName, List<Object> pValue) {
- String hql = "from " + clazz.getName() + " entity where entity.";
- int maxIndex = pName.size() - 1;
- for (int i = 0; i < maxIndex; i++) {
- hql += pName.get(i) + " = '" + pValue.get(i) + "' and ";
- }
- hql += pName.get(maxIndex) + " = '" + pValue.get(maxIndex) + "'";
- return getHibernateTemplate().find(hql);
- }
- /**
- * 根据属性查询 全部
- *
- * @param clazz
- * @param pName
- * @param pValue
- * @return
- */
- @Override
- public List<Object> getObjectsByProperty(Class clazz, String pName, String operator, Object pValue) {
- String hql = "from " + clazz.getName() + " entity where entity." + pName + " " + operator + pValue;
- return getHibernateTemplate().find(hql);
- }
- @Override
- public List<Object> getObjectsByPropertys(Class clazz, List<String> pName, List<String> operator, List<Object> pValue) {
- String hql = "from " + clazz.getName() + " entity where entity.";
- int maxIndex = pName.size() - 1;
- for (int i = 0; i < maxIndex; i++) {
- hql += pName.get(i) + " " + operator.get(i) + " '" + pValue.get(i) + "' and ";
- }
- hql += pName.get(maxIndex) + " " + operator.get(maxIndex) + " '" + pValue.get(maxIndex) + "'";
- System.out.println("hql = " + hql);
- return getHibernateTemplate().find(hql);
- }
- @Override
- public Object getValueByPropertys(Class clazz, Map<String, Object> map, String selectName) {
- String hql = "select entity." + selectName + "from " + clazz.getName() + " entity where entity.";
- Set set = map.entrySet();
- if (set != null) {
- Iterator iterator = set.iterator();
- while (iterator.hasNext()) {
- Entry entry = (Entry) iterator.next();
- Object key = entry.getKey();
- Object value = entry.getValue();
- hql += key + " = '" + value + "' and entity.";
- }
- }
- hql = hql.substring(0, hql.length() - 12);
- System.out.println("hql = " + hql);
- return getHibernateTemplate().find(hql);
- }
- @Override
- public Object getValueByProperty(Class clazz, String pName, Object pValue, String selectName) {
- String hql = "select entity." + selectName + " from " + clazz.getName() + " entity where entity." + pName + " = '" + pValue + "'";
- System.out.println("hql = " + hql);
- return getHibernateTemplate().find(hql);
- }
- @Override
- public Object getValueByPropertys(Class clazz, List<String> pNames, List<Object> pValues, String selectName) {
- String hql = "select entity." + selectName + "from " + clazz.getName() + " entity where entity.";
- int maxIndex = pNames.size() - 1;
- for (int i = 0; i < maxIndex; i++) {
- hql += pNames.get(i) + " = '" + pValues.get(i) + "' and ";
- }
- hql += pNames.get(maxIndex) + " = '" + pValues.get(maxIndex) + "'";
- System.out.println("hql = " + hql);
- return getHibernateTemplate().find(hql);
- }
- }
3》值得注意的地方Map如何获取key
[java] view plaincopy
- Set set = map.entrySet();
- if (set != null) {
- Iterator iterator = set.iterator();
- while (iterator.hasNext()) {
- Entry entry = (Entry) iterator.next();
- Object key = entry.getKey();
- Object value = entry.getValue();
- hql += key + " = '" + value + "' and entity.";
- }
- }