jsf学习四(添。删。改)

新建个dal层专门操作数据库的一些方法，由于是测试学习。。没有考虑代码的规范和其他的问题。运行只看效果。

package jsftest.dal;

import org.hibernate. * ;
import org.hibernate.cfg. * ;
import org.apache.log4j. * ;
import jsftest.vo.ArticleVO;

import java.util. * ;

public class ArticleDAL {
   org.apache.log4j.Logger log = Logger.getLogger( this .getClass());
    private Session session = null ;
     public ArticleDAL() {
    }
     public void saveArticle(ArticleVO vo)
    {
         try
        {
            session = this .getSession();
            session.saveOrUpdate(vo);
            session.flush();
            session.connection().commit();
            session.close();
        }
         catch (Exception ee)
        {
            log.error(ee);
        }
    }
     public void deleteArticle( int articleID)
    {
        session = this .getSession();
       ArticleVO vo = (ArticleVO)session.get(ArticleVO. class ,articleID);
        session.delete(vo);
    }

     public void deleteArticle(ArticleVO vo)
    {
      session = this .getSession();
      session.delete(vo);
      session.flush();

    }
     public List LoadArticleAll()
    {
        session = this .getSession();
       Query query = session.createQuery( " FROM ArticleVO " );
       List list = query.list();
       session.close();
        return list;
    }
     public Session getSession()
    {
         try
        {
            Configuration cfg = new Configuration().configure();
            SessionFactory sf = cfg.buildSessionFactory();
             return sf.openSession();
        } catch (Exception ee)
        {
            log.error( " error: " + ee.getMessage());
        }
         return null ;
    }
}

新建from 类前途jsf都是掉这类的方法

package jsftest.from;

import java.util.ArrayList;
import java.util.List;

import javax.faces.component.UIData;
import javax.faces.event.ActionEvent;

import jsftest.dal.ArticleDAL;
import jsftest.vo.ArticleVO;
import java.util.Collection;

public class ArticleForm {
     private int id = 0 ;
     private String title;
     private String body;
     private ArrayList articles;

     public ArticleForm() {
        loadall();
    }
     private ArticleDAL dal = new ArticleDAL();
     public void save()
    {
        ArticleVO vo = new ArticleVO();
        vo.setBody( this .getBody());
        vo.setTitle( this .getTitle());
         if ( this .getId() != 0 )
        {
            vo.setId( this .getId());
        }
        dal.saveArticle(vo);
    }
     public void edit(ActionEvent event)
    {
       UIData table = (UIData) event.getComponent().getParent().getParent();
       ArticleVO vo = new ArticleVO();
       vo = (ArticleVO)table.getRowData();
       this .setBody(vo.getBody());
       this .setId(vo.getId());
       this .setTitle(vo.getTitle());
    }

     public void delete(ActionEvent event)
    {
       UIData table = (UIData) event.getComponent().getParent().getParent();
        ArticleVO vo = (ArticleVO)table.getRowData();
        dal.deleteArticle(vo);
        dal.LoadArticleAll();
    }
     public void loadall()
    {
         this .setArticles((ArrayList)dal.LoadArticleAll());
    }

     public String getBody() {
         return body;
    }

     public int getId() {
         return id;
    }

     public String getTitle() {
         return title;
    }

     public Collection getArticles() {
         // this.loadall();
         if (articles == null )
        {
            articles = new ArrayList();
        }
         return articles;
    }

     public void setBody(String body) {
         this .body = body;
    }

     public void setId( int id) {
         this .id = id;
    }

     public void setTitle(String title) {
         this .title = title;
    }

     public void setArticles(ArrayList articles) {
         this .articles = articles;
    }

}

实体

package jsftest.vo;

public class ArticleVO {
     private int id;
     private String title;
     private String body;
     public ArticleVO() {
    }
// getter setter

前台

<% @ page contentType = " text/html; charset=GBK " %>
<% @taglib uri = " http://java.sun.com/jsf/html " prefix = " h " %>
<% @taglib uri = " http://java.sun.com/jsf/core " prefix = " f " %>
< f:view >
< head >
< title >
jsp1
</ title >
</ head >
< body bgcolor ="#ffffff" >
< h1 >
JBuilder Generated JSP
</ h1 >
< h:form >

   < div align ="left" >
    标题   < h:inputText id ="title" value ="#{article.title}" />< br >
     内容 < h:inputTextarea id ="currentMessage" value ="#{article.body}" rows ="10" cols ="60" />
          < h:inputHidden value ="#{article.id}" />
   </ div >
        < div align ="center" >
           < h:commandButton value ="save" action ="#{article.save}" />
        </ div >
       < div align ="center" >
         < h:commandButton value ="clear" type ="reset" />
       </ div >
  *************************************************************

< h:dataTable id ="table" rowClasses ="list-row" value ="#{article.articles}" var ="articles" >
               < h:column >
                 < h:outputText styleClass ="small" value ="#{articles.id}" />
               </ h:column >
               < h:column >
                 < h:commandLink id ="editLink" actionListener ="#{article.edit}" >
                   < h:outputText value ="edit" />
                 </ h:commandLink >
               </ h:column >
               < h:column >
                 < h:commandLink id ="deleteLink" actionListener ="#{article.delete}" >
                   < h:outputText value ="delete" />
                 </ h:commandLink >
               </ h:column >
               < h:column >
                 < h:outputText value ="#{articles.title}" />
               </ h:column >
                < h:column >
                 < h:outputText value ="#{articles.body}" />
               </ h:column >
             </ h:dataTable >
         </ h:form >
</ body >

</ f:view >

faces-config.xml

<? xml version="1.0" encoding="UTF-8" ?>
<! DOCTYPE faces-config PUBLIC "-//Sun Microsystems, Inc.//DTD JavaServer Faces Config 1.1//EN" "http://java.sun.com/dtd/web-facesconfig_1_1.dtd" >
< faces-config >
   < managed-bean >
     < description > this first jsf </ description >
     < managed-bean-name > article </ managed-bean-name >
     < managed-bean-class > jsftest.from.ArticleForm </ managed-bean-class >
     < managed-bean-scope > request </ managed-bean-scope >
   </ managed-bean >
</ faces-config >

hibernate 实体配置文件

<? xml version="1.0" encoding="UTF-8" ?>
<! DOCTYPE hibernate-mapping PUBLIC
    "-//Hibernate/Hibernate mapping DTD 3.0//EN"
    "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd" >
< hibernate-mapping >

     < class name ="jsftest.vo.ArticleVO" table ="articles" >
     < id name ="id" column ="id" unsaved-value ="0" >
       < generator class ="native" />
     </ id >
      < property name ="title"   column ="title" />
      < property name ="body" column ="body" />

   </ class >
</ hibernate-mapping >

hibernate 配置文件

<? xml version='1.0' encoding='UTF-8' ?>

<! DOCTYPE hibernate-configuration PUBLIC
    "-//Hibernate/Hibernate Configuration DTD 3.0//EN"
    "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd" >
< hibernate-configuration >
   < session-factory >
     < property name ="connection.driver_class" > org.gjt.mm.mysql.Driver </ property >
     < property name ="connection.url" > jdbc:mysql://localhost:3306/test </ property >
     < property name ="connection.username" > root </ property >
     < property name ="connection.password" ></ property >

     < property name ="connection.pool_size" > 1 </ property >
     < property name ="dialect" > org.hibernate.dialect.MySQLDialect </ property >
     < property name ="show_sql" > true </ property >
     < property name ="hibernate.use_outer_join" > true </ property >
     < property name ="hibernate.transaction.factory_class" >
      org.hibernate.transaction.JDBCTransactionFactory
     </ property >
     < mapping resource ="ArticleVO.hbm.xml" />

   </ session-factory >
</ hibernate-configuration >

运行。。

jsf学习四(添。删 。改)