上一篇写了Liferay源代码的编译和二次开发环境的生成(ext工程),下面将介绍在二次开发环境上搭建自己的开发框架.
用Eclipse打开编译Liferay源代码生成的ext扩展开发环境,如下图
主要介绍ext-ejb和ext-web两个目录,利用Liferay的ant工具可以自动生成一套对于数据库表CURD的处理类,但是为符合自己的开发习惯,我在ext环境上搭建了自己的开发框架,主要包括两大块,第一是Hibernate数据访问层的封装,二是Struts的集成,集成了DispatchAction的多方法的功能.
下面介绍如何对Hibernate数据访问层进行封装ext-ejb/classes/META-INF 目录下面的ext-hbm.xml是Hibernate映射文件,ext-spring-professional.xml是Spring配置文件,对于ext-hbm.xml文件就不做解释了下面是Hibernate数据访问层的Spring的配置代码
<beanid="cn.pisoft.portlet.hibernate.HibernateService.professional"class="cn.pisoft.portlet.hibernate.impl.HibernateServiceImpl"lazy-init="true"/>
<beanid="cn.pisoft.portlet.hibernate.HibernateService.transaction"class="org.springframework.transaction.interceptor.TransactionProxyFactoryBean"lazy-init="true">
<propertyname="transactionManager">
<refbean="liferayTransactionManager"/>
</property>
<propertyname="target">
<refbean="cn.pisoft.portlet.hibernate.HibernateService.professional"/>
</property>
<propertyname="transactionAttributes">
<props>
<propkey="*">PROPAGATION_REQUIRED</prop>
</props>
</property>
</bean>
<beanid="cn.pisoft.portlet.hibernate.factory.HibernateServiceFactory"class="cn.pisoft.portlet.hibernate.factory.HibernateServiceFactory"lazy-init="true">
<propertyname="service">
<refbean="cn.pisoft.portlet.hibernate.HibernateService.transaction"/>
</property>
</bean>
<beanid="cn.pisoft.portlet.hibernate.impl.HibernateDaoImpl"class="cn.pisoft.portlet.hibernate.impl.HibernateDaoImpl"lazy-init="true">
<propertyname="dataSource">
<refbean="liferayDataSource"/>
</property>
<propertyname="sessionFactory">
<refbean="liferaySessionFactory"/>
</property>
</bean>
<beanid="cn.pisoft.portlet.hibernate.util.HibernateDaoUtil"class="cn.pisoft.portlet.hibernate.util.HibernateDaoUtil"lazy-init="true">
<propertyname="dao">
<refbean="cn.pisoft.portlet.hibernate.impl.HibernateDaoImpl"/>
</property>
</bean>
下面是相关的JAVA类和接口
HibernateDao.java 接口
packagecn.pisoft.portlet.hibernate;
importjava.io.Serializable;
importjava.util.List;
importcn.pisoft.portlet.common.Pager;
/***//**
*<p>Title：</p>
*
*<p>Description:</p>
*
*<p>Copyright:Copyright(c)2007</p>
*
*<p>Company:</p>
*
*<p>Author:一个人的日子</p>
*
*<p>Email:[email protected]</p>
*
*<p>Version:1.0</p>
*
*<p>Create2007-7-29</p>
*
*/
publicinterfaceHibernateDao...{
publicvoidsave(Objectpo)throwsException;
publicListquery(Stringhql)throwsException;
publicObjectget(Classclas,Serializableid)throwsException;
publicvoidupdate(Objectpo)throwsException;
publicvoiddelete(Objectpo)throwsException;
publicPagerqueryByPage(Stringhql,inttotalElements,intpageNumber,intpageSize)throwsException;
publicPagerqueryByPage(Stringhql,intpageNumber,intpageSize)throwsException;
publicvoidexecuteSql(Stringsql)throwsException;
publicintgetCountByExecuteSql(Stringsql)throwsException;
publicListgetTopN(Stringhql,intn)throwsException;
publicListgetListByExecuteSql(Stringsq,StringcolumnNamel)throwsException;
publicListgetListByExecuteSql(Stringsq,intfetchNubmer)throwsException;
}
HibernateDaoImpl.java 上面接口的实现类
packagecn.pisoft.portlet.hibernate.impl;
importjava.io.Serializable;
importjava.sql.Connection;
importjava.sql.ResultSet;
importjava.sql.Statement;
importjava.util.ArrayList;
importjava.util.List;
importorg.hibernate.Query;
importorg.hibernate.Session;
importcn.pisoft.portlet.common.Pager;
importcn.pisoft.portlet.hibernate.HibernateDao;
importcom.liferay.portal.service.persistence.BasePersistence;
/***//**
*<p>Title：</p>
*
*<p>Description:</p>
*
*<p>Copyright:Copyright(c)2007</p>
*
*<p>Company:</p>
*
*<p>Author:一个人的日子</p>
*
*<p>Email:[email protected]</p>
*
*<p>Version:1.0</p>
*
*<p>Create2007-7-29</p>
*
*/
publicclassHibernateDaoImplextendsBasePersistenceimplementsHibernateDao...{
publicListquery(Stringhql)throwsException...{
Listlist=null;
Sessionsession=null;
session=this.openSession();
list=session.createQuery(hql).list();
this.closeSession(session);
returnlist;
}
publicvoidsave(Objectpo)throwsException...{
Sessionsession=null;
session=this.openSession();
session.save(po);
this.closeSession(session);
}
publicObjectget(Classclas,Serializableid)throwsException...{
Sessionsession=null;
session=this.openSession();
Objecto=session.get(clas,id);
this.closeSession(session);
returno;
}
publicvoidupdate(Objectpo)throwsException...{
Sessionsession=null;
session=this.openSession();
session.update(po);
this.closeSession(session);
}
publicvoiddelete(Objectpo)throwsException...{
Sessionsession=null;
session=this.openSession();
session.delete(po);
this.closeSession(session);
}
publicPagerqueryByPage(Stringhql,inttotalElements,intpageNumber,intpageSize)throwsException...{
Sessionsession=null;
session=this.openSession();
Pagerpage=newPager();
page.setPageNumber(pageNumber);
page.setPageSize(pageSize);
page.setTotalElements(totalElements);
Listlist=null;
Queryquery=session.createQuery(hql);
query.setFirstResult((pageNumber-1)*pageSize);
query.setMaxResults(pageSize);
list=query.list();
page.setElements(list);
this.closeSession(session);
returnpage;
}
publicPagerqueryByPage(Stringhql,intpageNumber,intpageSize)throwsException...{
Sessionsession=null;
session=this.openSession();
Pagerpage=newPager();
page.setPageNumber(pageNumber);
page.setPageSize(pageSize);
inttotalElements=0;
StringstaticSql=hql.trim();
if(staticSql.startsWith("select")||staticSql.startsWith("SELECT"))...{
intfromIndex=staticSql.indexOf("from");
intFROMIndex=staticSql.indexOf("FROM");
if(FROMIndex!=-1&&fromIndex>FROMIndex)...{
fromIndex=FROMIndex;
}
if(fromIndex==-1)...{
fromIndex=0;
}
staticSql=staticSql.substring(fromIndex);
}
intorderByIndex=staticSql.indexOf("orderby");
if(orderByIndex!=-1)...{
staticSql=staticSql.substring(0,orderByIndex);
}
Queryquery=session.createQuery("selectcount(*)"+staticSql);
Listlist=query.list();
if(list!=null&&list.get(0)!=null)...{
totalElements=((Long)list.get(0)).intValue();
}
page.setTotalElements(totalElements);
query=session.createQuery(hql);
query.setFirstResult((pageNumber-1)*pageSize);
query.setMaxResults(pageSize);
list=query.list();
page.setElements(list);
this.closeSession(session);
returnpage;
}
publicvoidexecuteSql(Stringsql)throwsException...{
Sessionsession=null;
