ExtJS+DWR+Spring+Hibernate开发HRMS(3)

最新推荐文章于 2009-09-09 23:43:00 发布

最新推荐文章于 2009-09-09 23:43:00 发布 · 56 阅读

文章标签：

#Hibernate #Spring #DWR #ORM #DAO

本文介绍了Spring框架与Hibernate ORM技术的整合应用，通过具体的Java代码示例展示了如何实现用户及人员信息的数据操作，包括增删改查等核心功能。

接下来我们看看我们 WEB应用的JAVA代码,首先是各个模块的DAO，它们充分利用了Spring对Hibernate的支持：

package org.leno.hr.dao;

import java.util.ArrayList;

import java.util.List;

import org.hibernate.Session;

import org.leno.hr.User;

import org.springframework.orm.hibernate3.HibernateCallback;

import org.springframework.orm.hibernate3.support.HibernateDaoSupport;

public class LogonDAO extends HibernateDaoSupport {

public int removeRecords(final ArrayList<String> ids) throws Exception {

if (ids == null || ids.size() == 0) {

return -1;

}

getHibernateTemplate().execute(new HibernateCallback() {

public Object doInHibernate(Session session) {

for (int i = 0; i < ids.size(); i++) {

session.createQuery(

"delete from userInfo o where o.id=" + ids.get(i))

.executeUpdate();

}

return 1;

}

});

return 1;

}

@SuppressWarnings("unchecked")

public List<User> getRecords() throws Exception {

return getHibernateTemplate().loadAll(User.class);

}

@SuppressWarnings("unchecked")

public List<User> getUserList(String userName, String passWord)

throws Exception {

List<User> results = getHibernateTemplate().find(

"from User u where u.userName='" + userName

+ "' and u.passWord='" + passWord + "'");

return results;

}

public int insertUser(User user) throws Exception {

getHibernateTemplate().persist(user);

return 1;

}

public int updateUser(User user) throws Exception {

getHibernateTemplate().merge(user);

return 1;

}

package org.leno.hr.dao;

import java.util.ArrayList;

import java.util.List;

import org.hibernate.Session;

import org.leno.hr.Person;

import org.springframework.orm.hibernate3.HibernateCallback;

import org.springframework.orm.hibernate3.support.HibernateDaoSupport;

public class PersonDAO extends HibernateDaoSupport {

public int removeRecords(final ArrayList<String> ids) throws Exception {

if (ids == null || ids.size() == 0) {

return -1;

}

return (Integer) getHibernateTemplate().execute(

new HibernateCallback() {

public Object doInHibernate(Session session) {

for (int i = 0; i < ids.size(); i++) {

session.createQuery(

"delete from Person o where o.id="

+ ids.get(i)).executeUpdate();

}

return 1;

}

});

}

@SuppressWarnings("unchecked")

public List<Person> getRecords(final int page, final int pageSize)

throws Exception {

return (List<Person>) getHibernateTemplate().execute(

new HibernateCallback() {

public Object doInHibernate(final Session session) {

return session.createQuery("from Person")

.setFirstResult(page).setMaxResults(pageSize)

.list();

}

});

}

public int insertPerson(Person person) throws Exception {

getHibernateTemplate().saveOrUpdate(person);

return 1;

}

public int updatePerson(Person person) throws Exception {

getHibernateTemplate().saveOrUpdate(person);

return 1;

}

public int getTotalNums() {

long count = (Long) getHibernateTemplate().execute(

new HibernateCallback() {

public Object doInHibernate(final Session session) {

return (Long) session.createQuery(

"select count(*) from Person").uniqueResult();

}

});

return (int) count;

}

package org.leno.hr.dao;

import java.util.ArrayList;

import java.util.List;

import org.hibernate.Session;

import org.leno.hr.Unit;

import org.springframework.orm.hibernate3.HibernateCallback;

import org.springframework.orm.hibernate3.support.HibernateDaoSupport;

public class UnitDAO extends HibernateDaoSupport {

public int removeRecords(final ArrayList<String> ids) throws Exception {

if (ids == null || ids.size() == 0) {

return -1;

}

getHibernateTemplate().execute(new HibernateCallback() {

public Object doInHibernate(Session session) {

for (int i = 0; i < ids.size(); i++) {

session.createQuery(

"delete from Unit o where o.id=" + ids.get(i))

.executeUpdate();

}

return 1;

}

});

return 1;

}

@SuppressWarnings("unchecked")

public List<Unit&g