jpetstore 学习的好例子 struts+spring+hibernate

 

 

 今天看spring的jpetstore,不知从何看起,看到这个帖子,一时有如遇知音,好文啊

引自http://blog.youkuaiyun.com/lvchaoxv/archive/2006/11/09/1375351.aspx

1.先建张表
用的是mysql数据库..
文章表. 

  CREATE       TABLE    `t_article` (
  `a_id`    int   (   11   )    NOT       NULL    auto_increment,
  `a_sort`    int   (   11   )    NOT       NULL       default       '   0   '   ,
  `a_title`    varchar   (   50   )    default       NULL   ,
  `a_body`    text   ,
  `a_author`    varchar   (   11   )    default       ''   ,
  `a_hit`    int   (   11   )    NOT       NULL       default       '   0   '   ,
  `c_id`    int   (   11   )    default       '   0   '   ,
  `a_date`    varchar   (   20   )    default       NULL   ,
     PRIMARY       KEY     (`a_id`)
)   

2:写vo

 

package   firstspring.vo;
  public     class   articleVO    ... {
     private   int  a_id;
     private   int  a_sort;
     private   int  a_hit;
     private   int  c_id;
     private  String a_title;
     private  String a_body;
     private  String a_author;
     private  String a_date;


     public  articleVO()   ...{
    } 
    // 写上get() set()方法 

3 写VO映射文件

 

 

<?  xml version="1.0" encoding="UTF-8"  ?>  
  <!  DOCTYPE hibernate-mapping PUBLIC
    "-//Hibernate/Hibernate Mapping DTD 2.0//EN"
    "http://hibernate.sourceforge.net/hibernate-mapping-2.0.dtd"  >  
  <  hibernate-mapping  >  
      <  class   name  ="firstspring.vo.articleVO"   table  ="t_article"     >  
      <  id   name  ="a_id"   column  ="a_id"   unsaved-value  ="0"     >  
        <  generator   class  ="native"   />  
   </  id  >  
       <  property   name  ="c_id"      column  ="c_id"   />  
       <  property   name  ="a_title"   column  ="a_title"   />  
       <  property   name  ="a_sort"    column  ="a_sort"   />  
       <  property   name  ="a_date"    column  ="a_date"   />  
       <  property   name  ="a_body"    column  ="a_body"   />  
       <  property   name  ="a_hit"     column  ="a_hit"   />  
       <  property   name  ="a_author"   column  ="a_author"   />     
    </  class  >  
  </  hibernate-mapping  >  

4: 写dao层接口和bll层接口
  4.1 dao层接口

package   firstspring.idao;
  import   firstspring.vo.articleVO;
  public     interface   ArticleIdao    ... {
    
     void  addArticle(articleVO vo);         
}  

4.2 bll层接口

package   firstspring.idao;
  import   firstspring.vo.articleVO;
  public     interface   IArticleBLL    ... {
      void  addArticle(articleVO vo);  
}  

 

 

5:写Articledao类

package  firstspring.dao;
import  org.springframework.orm.hibernate.support.HibernateDaoSupport;
import  firstspring.idao.ArticleIdao;
import  firstspring.vo.articleVO;
public   class  ArticleDal  extends  HibernateDaoSupport  implements  ArticleIdao  {
     public  ArticleDal()  {
    }
     public   void  addArticle(articleVO vo)
     {
         this .getHibernateTemplate().save(vo);
         this .getHibernateTemplate().flush();
        
    }
}

 

 

6.写Articlebll类

package  firstspring.bll;
import  firstspring.idao.ArticleIdao;
import  firstspring.idao.IArticleBLL;
import  firstspring.vo.articleVO;

public   class  ArticleBll  implements  IArticleBLL  {
   private ArticleIdao dal=null;
    public ArticleBll() {
    }
    public void addArticle(articleVO vo)
    {
        dal.addArticle(vo);
    }

    public ArticleIdao getDal() {
        return dal;
    }

    public void setDal(ArticleIdao dal) {
        this.dal = dal;
    }
}

7:添加struts框架。
  7.1 建个BaseAction类继承Action

package  firstspring.struts;

import  org.apache.struts.action. * ;
import  org.springframework.web.context.WebApplicationContext;
import  org.springframework.web.context.support.WebApplicationContextUtils;
import  javax.servlet.ServletContext;

public   abstract   class  BaseAction  extends  Action  {
    
    private WebApplicationContext wac;
    public BaseAction() {
    }
    public void setServlet(ActionServlet actionServlet)
    {
        super.setServlet(actionServlet);
        ServletContext servletContext=actionServlet.getServletContext();
       wac=WebApplicationContextUtils.getRequiredWebApplicationContext(servletContext);
       //wac.get
    }
    public WebApplicationContext getweb()
    {
        return wac;
    }
  
}

8：添加articleForm

package  firstspring.struts;

import  javax.servlet. * ;
import  javax.servlet.http. * ;

import  org.apache.commons.validator. * ;
import  org.apache.struts.action. * ;
import  org.apache.struts.validator. * ;

public   class  articleForm  extends  ValidatorForm  {
    private String a_auhor;
    private String a_body;
    private String a_date;
    private Integer a_hit;
    private Integer a_id;
    private Integer a_sort;
    private String a_title;
    private Integer c_id;

    public String getA_auhor() {
        return a_auhor;
    }

    public void setA_auhor(String a_auhor) {
        this.a_auhor = a_auhor;
    }

    public void setC_id(Integer c_id) {
        this.c_id = c_id;
    }

    public void setA_title(String a_title) {
        this.a_title = a_title;
    }

    public void setA_sort(Integer a_sort) {
        this.a_sort = a_sort;
    }

    public void setA_id(Integer a_id) {
        this.a_id = a_id;
    }

    public void setA_hit(Integer a_hit) {
        this.a_hit = a_hit;
    }

    public void setA_date(String a_date) {
        this.a_date = a_date;
    }

    public void setA_body(String a_body) {
        this.a_body = a_body;
    }

    public String getA_body() {
        return a_body;
    }

    public String getA_date() {
        return a_date;
    }

    public Integer getA_hit() {
        return a_hit;
    }

    public Integer getA_id() {
        return a_id;
    }

    public Integer getA_sort() {
        return a_sort;
    }

    public String getA_title() {
        return a_title;
    }

    public Integer getC_id() {
        return c_id;
    }

    public ActionErrors validate(ActionMapping actionMapping,
                                 HttpServletRequest httpServletRequest) {
        ServletContext application=this.getServlet().getServletContext();
        ActionErrors errors=new ActionErrors();
        String validationKey=this.getValidationKey(actionMapping,httpServletRequest);
        Validator validator=Resources.initValidator(validationKey,this,application,httpServletRequest,errors,page);//String,Object,ServletContext,HttpServletRequest,ActionMessages,int
        try
        {
            validatorResults=validator.validate();
        }
        catch(ValidatorException e)
        {
            //log.error(e.getMessage(),e);
        }
        return null ;

    }

    public void reset(ActionMapping actionMapping,
                      HttpServletRequest servletRequest) {
    }
}

9:添加ArticleAction继承刚刚建的BaseAction

package  firstspring.struts;

import  org.apache.struts.action.ActionMapping;
import  org.apache.struts.action.ActionForm;
import  javax.servlet.http.HttpServletRequest;
import  javax.servlet.http.HttpServletResponse;
import  org.apache.struts.action.ActionForward;
import  firstspring.vo.articleVO;
import  firstspring.idao.IArticleBLL;

public   class  articleAction  extends  BaseAction  {
    public ActionForward execute(ActionMapping mapping, ActionForm form,
                                 HttpServletRequest request,
                          HttpServletResponse response) {
                                //这里有几个数据直接写上了，没有从前台表单取。。     
        articleForm f = (articleForm) form;
        articleVO vo=new articleVO();
        vo.setA_author(f.getA_auhor());
        vo.setA_body(f.getA_body());
        vo.setA_hit(100);
        vo.setA_date(f.getA_date());
        vo.setA_sort(0);
        vo.setC_id(1);
        vo.setA_title(f.getA_title());
        //IArticleBLL 
     IArticleBLL ibll=(IArticleBLL)this.getweb().getBean("articlebll");
     ibll.addArticle(vo);
     
       return null;
    }
}

好了。到这就快差不多了。。还有个重要的东西。写个appcontext.xml配置文件。工厂就在这了。。

<? xml version="1.0" encoding="UTF-8" ?>
<! DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN"
    "http://www.springframework.org/dtd/spring-beans.dtd" >
< beans >


< bean  id ="dataSource"  class ="org.apache.commons.dbcp.BasicDataSource" >
   < property  name ="driverClassName" >< value > org.gjt.mm.mysql.Driver </ value ></ property >
   < property  name ="url" >< value > jdbc:mysql://localhost:3306/wjcms </ value ></ property >
   < property  name ="username" >< value > root </ value ></ property >
   < property  name ="password" >< value > wujun </ value ></ property >
</ bean >


     < bean  id ="sessionFactory"
        class ="org.springframework.orm.hibernate.LocalSessionFactoryBean" >

         < property  name ="dataSource" >
             < ref  local ="dataSource" />
         </ property >


         < property  name ="mappingResources" >
             < list >
                 < value >
                    articleVO.hbm.xml
                 </ value >
       
             </ list >
            
         </ property >

         < property  name ="hibernateProperties" >
             < props >
                 < prop  key ="hibernate.dialect" >
                    net.sf.hibernate.dialect.MySQLDialect
                 </ prop >
                 < prop  key ="hibernate.show_sql" >
                    true
                 </ prop >
             </ props >
         </ property >
     </ bean >

     < bean  id ="articledal"  class ="firstspring.dao.ArticleDal" >
        < property  name ="sessionFactory" >< ref  local ="sessionFactory" /></ property >
     </ bean >
    
     < bean  id ="articlebll"  class ="firstspring.bll.ArticleBll" >
        < property  name ="dal" >< ref  local ="articledal" /></ property >    
     </ bean >
</ beans >

建个jsp页面。测试添加一条记录看看。这是前台的代码。。

< html:form  action ="/articleAction.do"  method ="POST" >
< html:text  property ="a_auhor" />
< br >
< html:text  property ="a_body" />
< br >
< html:text  property ="a_date" />
< br >
< br >
< br >
< br >
< html:text  property ="a_title" />
< br >
< br >
< html:submit  property ="submit"  value ="Submit" />< br >
< html:reset  value  ="Reset" />
</ html:form >

到这就快差不多了。还有一个小事情，在web.xml里记的加上一句

  < servlet >
     < servlet-name > context </ servlet-name >
     < servlet-class > org.springframework.web.context.ContextLoaderServlet </ servlet-class >
     < load-on-startup > 1 </ load-on-startup >
   </ servlet >