Spring.Net + NHibernate 入门例子 - 雨中流泪

公告

Spring.Net 是一个很强大的框架,在java里非常的火,NHibernate也是从java里移植过来的.不过和Java下面的用法有所区别.下面我们以一个实例来说说他们在.net下的用法.
新建一个项目:名字叫SpringHiberate.
首先,我们修改我们的配置文件web.config:

<?xml version="1.0" encoding="utf-8"?>

</sectionGroup>

</configSections>

</SpringOverrideProperty>

</context>

</spring>

<system.web>

</httpModules>

</httpHandlers>

</system.web>

</configuration>

然后我们添加一个Model类User.cs:

using System;
2

namespace SpringHiberate.dao.model
4

{
5

public class User
6

{
7

private Int32 id;
8

public Int32 Id
10

{
11

get { return id; }
12

set { id = value; }
13

}
14

private string name;
15

public string Name
17

{
18

get { return name; }
19

set { name = value; }
20

}
21

private string email;
22

public string Email
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{
25

get { return email; }
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set { email = value; }
27

}
28

}
29

}

我们再在User.cs目录里添加一个文件User.hbm.xml,文件的生成操作为嵌入的资源

<?xml version="1.0" encoding="utf-8" ?>

<hibernate-mapping xmlns="urn:nhibernate-mapping-2.2">

</id>

</class>

</hibernate-mapping>

然后我们写一个SQLProvider类SQLProvider.cs.

using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using Spring.Data.Common;

namespace SpringHiberate.dao
{
    public class SQLProvider : IDbProvider
    {
        #region IDbProvider 成员
        private string _connectionString = "";
        public string ConnectionString
        {
            get
            {
                return this._connectionString;
            }
            set
            {
                this._connectionString = value;
            }
        }

        public IDbCommand CreateCommand()
        {
            return null;
        }

        public object CreateCommandBuilder()
        {
            return null;
        }

        public IDbConnection CreateConnection()
        {
            return null;
        }

        public IDbDataAdapter CreateDataAdapter()
        {
            return null;
        }

        public IDbDataParameter CreateParameter()
        {
            return null;
        }

        public string CreateParameterName(string name)
        {
            return null;
        }

        public string CreateParameterNameForCollection(string name)
        {
            return null;
        }

        public IDbMetadata DbMetadata
        {
            get {
                return null;
            }
        }

        public string ExtractError(Exception e)
        {
            return null;
        }

        public bool IsDataAccessException(Exception e)
        {
            return false;
        }

        #endregion
    }
}

在写一个UserDao类(UserDao.cs)来操作

using System;
using System.Collections;
using Spring.Data.NHibernate.Support;
using SpringHiberate.dao.model;

namespace SpringHiberate.dao
{
    public class UserDao : HibernateDaoSupport
    {
        public void Save(User user)
        {
            HibernateTemplate.Save(user);
        }

        public void Delete(User user)
        {
            HibernateTemplate.Delete(user);
        }

        public void Update(User user)
        {
            HibernateTemplate.Update(user);
        }

        public IList FindAll()
        {
            return HibernateTemplate.LoadAll(typeof(User));
        }

        public User Find(Object ID)
        {
            return (User)HibernateTemplate.Load(typeof(User), ID);
        }
    }
}

现在代码部分基本写完,我们开始写spring的配置文件(spring_bean_dao.xml),文件的生成操作也为嵌入的资源,他配置了数据库操作以及DAO部分,页面的操作DAO也是依赖注入的

<?xml version="1.0" encoding="utf-8" ?>

<objects xmlns="http://www.springframework.net"

xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

xsi:schemaLocation="http://www.springframework.net http://www.springframework.net/xsd/spring-objects.xsd">

</object>

<list>

<value>SpringHiberate</value>

</list>

</property>

</dictionary>

</property>

</object>

</object>

</property>

</object>

</object>

</object>

</objects>

修改Default.aspx.cs文件里的内容:

using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using SpringHiberate.spring;
using SpringHiberate.dao;

namespace SpringHiberate
{
    public partial class _Default : System.Web.UI.Page
    {
        private UserDao userDao;

        public UserDao UserDao
        {
            get { return userDao; }
            set { userDao = value; }
        }

        protected void Page_Load(object sender, EventArgs e)
        {
            Response.Write(hello.Name);
            SpringHiberate.dao.model.User u = new SpringHiberate.dao.model.User();
            u.Name = "safa";
            u.Email = "eicesoft@126.com";
            userDao.Save(u);
        }
    }
}

好了,完成了.很简单吧.下面运行一下,然后看看数据库是不是新建了一条数据.
Spring.Net简化了数据框架NHibernate的操作.对页面进行注入,实现了松耦合.
Spring.Net远远不止这些.其他的方面在以后的文章中继续介绍
项目的源码打包:/Files/eicesoft/SpringHiberate.zip

posted on 2008-02-19 16:20 雨中流泪阅读(19710) 评论(25) 编辑收藏举报

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