iBatis for net 框架使用

xiaoxiao2021-02-28  9

介:ibatis 一词来源于“internet”和“abatis”的组合,是一个由Clinton Begin在2001年发起的开放源代码项目,到后面发展的版本叫MyBatis但都是指的同一个东西。最初侧重于密码软件的开发,现在是一个基于Java的持久层框架,渐渐的也把这种模式转移到了net。相对NHibernate等“一站式”ORM解决方案而言,ibatis 是一种“半自动化”的ORM实现。

下载地址:http://code.google.com/p/mybatisnet/downloads/list?can=3 

本文开发Demo环境:IBatis.DataMapper.1.6.2.bin + MsSql 2005 + Vs 2010

使用步骤:

在使用之前,为大家推荐一款代码生成器,也是我专为此框架写的一款代码生成器,生成iBatis的Map配置文件,这样一来,用户不用开任何关于框架的说明文档,即可使用此框架。代码生成器(CodeHelper)下载地址与说明:

http://www.cnblogs.com/stone_w/archive/2011/09/26/2192010.html 

第一步:创建数据库与新建网站项目。

创建数据库与表的T-sql:

/*

* iBatisDemo Sql

* Stone (QQ:1370569)

* Date:2011.09.26

*/

create database OrmDB

go

use OrmDB

go

create table People

(

id int primary key identity,

[name] varchar(250),

age int

)

go

打开vs开发工具,新建网站项目。

第二步:为网站添加iBatis框架支持。

为网站添加引用或者直接把下载的iBatis框架中的IBatisNet.Common.dll和IBatisNet.DataMapper.dll复制到Bin目录下。

第三步:添加iBatis配置文件。

iBatis的配置文件只用三种,也必须要有这三种:

1.providers.config[文件名不能修改]此文件为数据库开发商提供的驱动配置集合,是固定不变的,无需修改与配置,复制文件到网站的根目录,代码如下:

providers.config <?xml version="1.0" encoding="utf-8"?><providersxmlns="http://ibatis.apache.org/providers"xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"> <clear/> <provider name="sqlServer1.0" description="Microsoft SQL Server, provider V1.0.3300.0 in framework .NET V1.0" enabled="false" assemblyName="System.Data, Version=1.0.3300.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" connectionClass="System.Data.SqlClient.SqlConnection" commandClass="System.Data.SqlClient.SqlCommand" parameterClass="System.Data.SqlClient.SqlParameter" parameterDbTypeClass="System.Data.SqlDbType" parameterDbTypeProperty="SqlDbType" dataAdapterClass="System.Data.SqlClient.SqlDataAdapter" commandBuilderClass="System.Data.SqlClient.SqlCommandBuilder" usePositionalParameters="false" useParameterPrefixInSql="true" useParameterPrefixInParameter="true" parameterPrefix="@" allowMARS="false" /> <provider name="sqlServer1.1" description="Microsoft SQL Server, provider V1.0.5000.0 in framework .NET V1.1" enabled="false" assemblyName="System.Data, Version=1.0.5000.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" connectionClass="System.Data.SqlClient.SqlConnection" commandClass="System.Data.SqlClient.SqlCommand" parameterClass="System.Data.SqlClient.SqlParameter" parameterDbTypeClass="System.Data.SqlDbType" parameterDbTypeProperty="SqlDbType" dataAdapterClass="System.Data.SqlClient.SqlDataAdapter" commandBuilderClass="System.Data.SqlClient.SqlCommandBuilder" usePositionalParameters="false" useParameterPrefixInSql="true" useParameterPrefixInParameter="true" parameterPrefix="@" allowMARS="false" /> <provider name="sqlServer2.0" enabled="true" description="Microsoft SQL Server, provider V2.0.0.0 in framework .NET V2.0" assemblyName="System.Data, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" connectionClass="System.Data.SqlClient.SqlConnection" commandClass="System.Data.SqlClient.SqlCommand" parameterClass="System.Data.SqlClient.SqlParameter" parameterDbTypeClass="System.Data.SqlDbType" parameterDbTypeProperty="SqlDbType" dataAdapterClass="System.Data.SqlClient.SqlDataAdapter" commandBuilderClass=" System.Data.SqlClient.SqlCommandBuilder" usePositionalParameters = "false" useParameterPrefixInSql = "true" useParameterPrefixInParameter = "true" parameterPrefix="@" allowMARS="false" /> <provider name="sqlServer2005" enabled="false" description="Microsoft SQL Server, provider V2.0.0.0 in framework .NET V2.0" assemblyName="System.Data, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" connectionClass="System.Data.SqlClient.SqlConnection" commandClass="System.Data.SqlClient.SqlCommand" parameterClass="System.Data.SqlClient.SqlParameter" parameterDbTypeClass="System.Data.SqlDbType" parameterDbTypeProperty="SqlDbType" dataAdapterClass="System.Data.SqlClient.SqlDataAdapter" commandBuilderClass=" System.Data.SqlClient.SqlCommandBuilder" usePositionalParameters = "false" useParameterPrefixInSql = "true" useParameterPrefixInParameter = "true" parameterPrefix="@" allowMARS="true" /> <provider name="OleDb1.1" description="OleDb, provider V1.0.5000.0 in framework .NET V1.1" enabled="false" assemblyName="System.Data, Version=1.0.5000.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" connectionClass="System.Data.OleDb.OleDbConnection" commandClass="System.Data.OleDb.OleDbCommand" parameterClass="System.Data.OleDb.OleDbParameter" parameterDbTypeClass="System.Data.OleDb.OleDbType" parameterDbTypeProperty="OleDbType" dataAdapterClass="System.Data.OleDb.OleDbDataAdapter" commandBuilderClass="System.Data.OleDb.OleDbCommandBuilder" usePositionalParameters="true" useParameterPrefixInSql="false" useParameterPrefixInParameter="false" parameterPrefix="" allowMARS="false" /> <provider name="OleDb2.0" description="OleDb, provider V2.0.0.0 in framework .NET V2" enabled="false" assemblyName="System.Data, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" connectionClass="System.Data.OleDb.OleDbConnection" commandClass="System.Data.OleDb.OleDbCommand" parameterClass="System.Data.OleDb.OleDbParameter" parameterDbTypeClass="System.Data.OleDb.OleDbType" parameterDbTypeProperty="OleDbType" dataAdapterClass="System.Data.OleDb.OleDbDataAdapter" commandBuilderClass="System.Data.OleDb.OleDbCommandBuilder" usePositionalParameters="true" useParameterPrefixInSql="false" useParameterPrefixInParameter="false" parameterPrefix="" allowMARS="false" /> <provider name="Odbc1.1" description="Odbc, provider V1.0.5000.0 in framework .NET V1.1" enabled="false" assemblyName="System.Data, Version=1.0.5000.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" connectionClass="System.Data.Odbc.OdbcConnection" commandClass="System.Data.Odbc.OdbcCommand" parameterClass="System.Data.Odbc.OdbcParameter" parameterDbTypeClass="System.Data.Odbc.OdbcType" parameterDbTypeProperty="OdbcType" dataAdapterClass="System.Data.Odbc.OdbcDataAdapter" commandBuilderClass="System.Data.Odbc.OdbcCommandBuilder" usePositionalParameters="true" useParameterPrefixInSql="false" useParameterPrefixInParameter="false" parameterPrefix="@" allowMARS="false" /> <provider name="Odbc2.0" description="Odbc, provider V2.0.0.0 in framework .NET V2" enabled="false" assemblyName="System.Data, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" connectionClass="System.Data.Odbc.OdbcConnection" commandClass="System.Data.Odbc.OdbcCommand" parameterClass="System.Data.Odbc.OdbcParameter" parameterDbTypeClass="System.Data.Odbc.OdbcType" parameterDbTypeProperty="OdbcType" dataAdapterClass="System.Data.Odbc.OdbcDataAdapter" commandBuilderClass="System.Data.Odbc.OdbcCommandBuilder" usePositionalParameters="true" useParameterPrefixInSql="false" useParameterPrefixInParameter="false" parameterPrefix="@" allowMARS="false" /> <provider name="oracle9.2" description="Oracle, Oracle provider V9.2.0.401" enabled="false" assemblyName="Oracle.DataAccess, Version=9.2.0.401, Culture=neutral, PublicKeyToken=89b483f429c47342" connectionClass="Oracle.DataAccess.Client.OracleConnection" commandClass="Oracle.DataAccess.Client.OracleCommand" parameterClass="Oracle.DataAccess.Client.OracleParameter" parameterDbTypeClass="Oracle.DataAccess.Client.OracleDbType" parameterDbTypeProperty="OracleDbType" dataAdapterClass="Oracle.DataAccess.Client.OracleDataAdapter" commandBuilderClass="Oracle.DataAccess.Client.OracleCommandBuilder" usePositionalParameters="false" useParameterPrefixInSql="true" useParameterPrefixInParameter="false" parameterPrefix=":" useDeriveParameters="false" allowMARS="false" /> <provider name="oracle10.1" description="Oracle, oracle provider V10.1.0.301" enabled="false" assemblyName="Oracle.DataAccess, Version=10.1.0.301, Culture=neutral, PublicKeyToken=89b483f429c47342" connectionClass="Oracle.DataAccess.Client.OracleConnection" commandClass="Oracle.DataAccess.Client.OracleCommand" parameterClass="Oracle.DataAccess.Client.OracleParameter" parameterDbTypeClass="Oracle.DataAccess.Client.OracleDbType" parameterDbTypeProperty="OracleDbType" dataAdapterClass="Oracle.DataAccess.Client.OracleDataAdapter" commandBuilderClass="Oracle.DataAccess.Client.OracleCommandBuilder" usePositionalParameters="true" useParameterPrefixInSql="true" useParameterPrefixInParameter="true" parameterPrefix=":" useDeriveParameters="false" allowMARS="false" /> <provider name="oracleClient1.0" description="Oracle, Microsoft provider V1.0.5000.0" enabled="false" assemblyName="System.Data.OracleClient, Version=1.0.5000.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" connectionClass="System.Data.OracleClient.OracleConnection" commandClass="System.Data.OracleClient.OracleCommand" parameterClass="System.Data.OracleClient.OracleParameter" parameterDbTypeClass="System.Data.OracleClient.OracleType" parameterDbTypeProperty="OracleType" dataAdapterClass="System.Data.OracleClient.OracleDataAdapter" commandBuilderClass="System.Data.OracleClient.OracleCommandBuilder" usePositionalParameters="false" useParameterPrefixInSql="true" useParameterPrefixInParameter="false" parameterPrefix=":" allowMARS="false" /> <provider name="ByteFx" description="MySQL, ByteFx provider V0.7.6.15073" enabled="false" assemblyName="ByteFX.MySqlClient, Version=0.7.6.15073, Culture=neutral, PublicKeyToken=f2fef6fed1732fc1" connectionClass="ByteFX.Data.MySqlClient.MySqlConnection" commandClass="ByteFX.Data.MySqlClient.MySqlCommand" parameterClass="ByteFX.Data.MySqlClient.MySqlParameter" parameterDbTypeClass="ByteFX.Data.MySqlClient.MySqlDbType" parameterDbTypeProperty="MySqlDbType" dataAdapterClass="ByteFX.Data.MySqlClient.MySqlDataAdapter" commandBuilderClass="ByteFX.Data.MySqlClient.MySqlCommandBuilder" usePositionalParameters="false" useParameterPrefixInSql="true" useParameterPrefixInParameter="true" parameterPrefix="@" allowMARS="false" /> <provider name="MySql" description="MySQL, MySQL provider 1.0.7.30072" enabled="false" assemblyName="MySql.Data, Version=1.0.7.30072, Culture=neutral, PublicKeyToken=c5687fc88969c44d" connectionClass="MySql.Data.MySqlClient.MySqlConnection" commandClass="MySql.Data.MySqlClient.MySqlCommand" parameterClass="MySql.Data.MySqlClient.MySqlParameter" parameterDbTypeClass="MySql.Data.MySqlClient.MySqlDbType" parameterDbTypeProperty="MySqlDbType" dataAdapterClass="MySql.Data.MySqlClient.MySqlDataAdapter" commandBuilderClass="MySql.Data.MySqlClient.MySqlCommandBuilder" usePositionalParameters="false" useParameterPrefixInSql="true" useParameterPrefixInParameter="true" parameterPrefix="?" allowMARS="false" /> <provider name="SQLite3 Finisar" description="SQLite, SQLite.NET provider V0.21.1869.3794" enabled="false" assemblyName="SQLite.NET, Version=0.21.1869.3794, Culture=neutral, PublicKeyToken=c273bd375e695f9c" connectionClass="Finisar.SQLite.SQLiteConnection" commandClass="Finisar.SQLite.SQLiteCommand" parameterClass="Finisar.SQLite.SQLiteParameter" parameterDbTypeClass="System.Data.DbType, System.Data" parameterDbTypeProperty="DbType" dataAdapterClass="Finisar.SQLite.SQLiteDataAdapter" commandBuilderClass="Finisar.SQLite.SQLiteCommandBuilder" usePositionalParameters="false" useParameterPrefixInSql="true" useParameterPrefixInParameter="true" parameterPrefix="@" setDbParameterPrecision="false" setDbParameterScale="false" allowMARS="false" /> <provider name="SQLite3" description="SQLite, SQLite.NET provider V1.0.43.0" enabled="false" assemblyName="System.Data.SQLite, Version=1.0.43.0, Culture=neutral, PublicKeyToken=db937bc2d44ff139" connectionClass="System.Data.SQLite.SQLiteConnection" commandClass="System.Data.SQLite.SQLiteCommand" parameterClass="System.Data.SQLite.SQLiteParameter" parameterDbTypeClass="System.Data.SQLite.SQLiteType" parameterDbTypeProperty="DbType" dataAdapterClass="System.Data.SQLite.SQLiteDataAdapter" commandBuilderClass="System.Data.SQLite.SQLiteCommandBuilder" usePositionalParameters="false" useParameterPrefixInSql="true" useParameterPrefixInParameter="true" parameterPrefix="@" setDbParameterPrecision="false" setDbParameterScale="false" allowMARS="false" /> <provider name="Firebird1.7" description="Firebird, Firebird SQL .NET provider V1.7.0.33200" enabled="false" assemblyName="FirebirdSql.Data.Firebird, Version=1.7.0.33200, Culture=neutral, PublicKeyToken=fa843d180294369d" connectionClass="FirebirdSql.Data.Firebird.FbConnection" commandClass="FirebirdSql.Data.Firebird.FbCommand" parameterClass="FirebirdSql.Data.Firebird.FbParameter" parameterDbTypeClass="FirebirdSql.Data.Firebird.FbDbType" parameterDbTypeProperty="FbDbType" dataAdapterClass="FirebirdSql.Data.Firebird.FbDataAdapter" commandBuilderClass="FirebirdSql.Data.Firebird.FbCommandBuilder" usePositionalParameters="false" useParameterPrefixInSql="true" useParameterPrefixInParameter="true" parameterPrefix="@" allowMARS="false" /> <provider name="PostgreSql0.99.1.0" description="PostgreSql, Npgsql provider V0.99.1.0" enabled="false" assemblyName="Npgsql, Version=0.99.1.0, Culture=neutral, PublicKeyToken=5d8b90d52f46fda7" connectionClass="Npgsql.NpgsqlConnection" commandClass="Npgsql.NpgsqlCommand" parameterClass="Npgsql.NpgsqlParameter" parameterDbTypeClass="NpgsqlTypes.NpgsqlDbType" parameterDbTypeProperty="NpgsqlDbType" dataAdapterClass="Npgsql.NpgsqlDataAdapter" commandBuilderClass="Npgsql.NpgsqlCommandBuilder" usePositionalParameters="false" useParameterPrefixInSql="true" useParameterPrefixInParameter="true" parameterPrefix=":" allowMARS="true" /> <provider name="iDb2.10" description="IBM DB2 Provider, V 10.0" enabled="false" assemblyName="IBM.Data.DB2.iSeries, Version=10.0.0.0,Culture=neutral, PublicKeyToken=9cdb2ebfb1f93a26, Custom=null" connectionClass="IBM.Data.DB2.iSeries.iDB2Connection" commandClass="IBM.Data.DB2.iSeries.iDB2Command" parameterClass="IBM.Data.DB2.iSeries.iDB2Parameter" parameterDbTypeClass="IBM.Data.DB2.iSeries.iDB2DbType" parameterDbTypeProperty="iDB2DbType" dataAdapterClass="IBM.Data.DB2.iSeries.iDB2DataAdapter" commandBuilderClass="IBM.Data.DB2.iSeries.iDB2CommandBuilder" usePositionalParameters="true" useParameterPrefixInSql="false" useParameterPrefixInParameter="false" parameterPrefix="" allowMARS="false" /> <provider name="Informix" description="Informix NET Provider, 2.81.0.0" enabled="false" assemblyName="IBM.Data.Informix, Version=2.81.0.0, Culture=neutral, PublicKeyToken=7c307b91aa13d208" connectionClass="IBM.Data.Informix.IfxConnection" commandClass="IBM.Data.Informix.IfxCommand" parameterClass="IBM.Data.Informix.IfxParameter" parameterDbTypeClass="IBM.Data.Informix.IfxType" parameterDbTypeProperty="IfxType" dataAdapterClass="IBM.Data.Informix.IfxDataAdapter" commandBuilderClass="IBM.Data.Informix.IfxCommandBuilder" usePositionalParameters = "true" useParameterPrefixInSql = "false" useParameterPrefixInParameter = "false" useDeriveParameters="false" allowMARS="false" /></providers>

2.SQLMap.config[文件名不可修改],配置连接数据库字符串与每个实体类(表)的映射文件配置,复制文件到网站的根目录,代码如下:

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

<sqlMapConfig

  xmlns="http://ibatis.apache.org/dataMapper"

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

    <settings>

        <!--/是否使用Satement命名空间,这里的命名空间指的是映射文件中sqlMap节点的namespace属性,默认是false-->

        <setting useStatementNamespaces="false"/>

        <!--是否启用DataMapper的缓存机制,针对全部的SqlMap,默认是true-->

        <setting cacheModelsEnabled="true"/>

        <!--是否启用SqlMapConfig.xsd schema验证映射文件,默认是false-->

        <setting validateSqlMap="false"/>

    </settings>

    <!--配置数据驱动提供类配置文件的路径和文件名-->

    <providers resource="providers.config"/>

    <!--如果在providers.config文件中指定了默认的数据库驱动,那么provider节点就不需要设置了,它的作用是在换数据库驱动时不需要修改providers.config文件。datasource节点用于指定ADO.NET Connection String.-->

    <database>

        <provider name="sqlServer2.0"/>

        <dataSource name="mydb" connectionString="data source=127.0.0.1;database=MyBatisDB;user id=sa;password=sa;"/>

    </database>

    <!--指定映射的文件的位置-->

    <sqlMaps>

        <sqlMap resource="Maps/PeopleMap.xml"/>

    </sqlMaps>

</sqlMapConfig>

3.每个实体类(表)都有一个单独的配置文件类,类型为xml。代码生成器也是生成这个类的,这样一来,用户就可以几秒钟创建开发一个iBatis项目了,实体类的配置文件格式如下,在网站的根目录创建一个Map的文件夹,新建xxxMap.xml格式的配置类,比如:PeopleMap.xml文件,示例代码如下:

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

<!--namespace必须用否者就报错(读取配置文件报:未将对象引用设置到对象的实例)-->

<sqlMap namespace="" xmlns="http://ibatis.apache.org/mapping" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">

    <statements>

        <select id="GetPeopleById" parameterClass="string" resultClass="HashTable">

            SELECT * FROM People WHERE Id=#Id#

        </select>

        <insert id="Add" parameterClass="hashtable">

            INSERT  dbo.People (name ,age)

            VALUES  (#Name# , #Age#)

        </insert>

        <delete id="Delete" parameterClass="int" restultClass="int">

            DELETE FROM dbo.People WHERE Id=#Id#

        </delete>

        <update id="Update" parameterClass="hashtable" restltClass="int">

            UPDATE People SET name=#Name# WHERE Id=#Id#

        </update>

        <select id="GetAll" resultClass="HashTable">

            SELECT * FROM People

        </select>

    </statements>

</sqlMap>

这三类配置文件必须都要有,与其他orm框架不同的是,web.config什么也不用配置,及时练数据库连接字符串也不是在它的文件中配置的,也就是web.config是没有被用到的。

第四步:iBatis框架语法与使用。

使用之前先来加入一个DB辅助类IBatisHepler.cs,代码如下:

IBatisHepler.cs using System;using System.Collections.Generic;using System.Text;using IBatisNet.DataMapper.Configuration.Statements;using IBatisNet.DataMapper;using IBatisNet.DataMapper.MappedStatements;using IBatisNet.Common;using IBatisNet.DataMapper.Scope;using System.Data;using IBatisNet.DataMapper.Configuration;using System.Collections;/// <summary>/// IBatis 使用工具类/// </summary>public class IBatisHepler{ private static ISqlMapper mapper = null; static IBatisHepler() { DomSqlMapBuilder builder = new DomSqlMapBuilder();//其作用是根据配置文件创建SqlMap实例。 mapper = builder.Configure("SqlMap.config") as SqlMapper;//SqlMapper是iBatisNet的核心组件,提供数据库操作的基础平台。SqlMapper可通过DomSqlMapBuilder创建。 } /// <summary> /// 执行添加操作 /// </summary> /// <param name="tag">语句ID</param> /// <param name="paramObject">语句所需要的参数</param> /// <returns>添加的主键</returns> public static object ExcuteInsert(string tag, Hashtable paramObject) { return mapper.Insert(tag, paramObject); } /// <summary> /// 执行删除操作 /// </summary> /// <param name="tag">语句ID</param> /// <param name="paramObject">语句所需要的参数</param> /// <returns>影响行数</returns> public static int ExcuteDelete(string tag, object paramObject) { return mapper.Delete(tag, paramObject); } /// <summary> /// 执行修改操作 /// </summary> /// <param name="tag">语句ID</param> /// <param name="paramObject">语句所需要的参数</param> /// <returns>影响行数</returns> public static int ExcuteUpdate(string tag, Hashtable paramObject) { return mapper.Update(tag, paramObject); } /// <summary> /// 查询单个实体对象 /// </summary> /// <param name="tag">语句ID</param> /// <param name="paramObject">语句所需要的参数</param> /// <returns>得到的Object</returns> public static object ExcuteSelectObj(string tag, object paramObject) { object obj = mapper.QueryForObject(tag, paramObject); return obj; } /// <summary> /// 分页查询 /// </summary> /// <param name="tag">语句ID</param> /// <param name="paramObject">语句所需要的参数</param> /// <param name="pageIndex">页索引</param> /// <param name="pageSize">每页显示的记录数</param> /// <returns>得到的List集合</returns> public static IList ExcuteSelect(string tag, object paramObject, int pageIndex, int pageSize) { return mapper.QueryForList(tag, paramObject, pageIndex, pageSize); } /// <summary> /// 通用的以DataTable的方式得到Select的结果(xml文件中参数要使用$标记的占位参数) /// </summary> /// <param name="tag">语句ID</param> /// <param name="paramObject">语句所需要的参数</param> /// <returns>得到的DataTable</returns> public static DataTable ExcuteSelect(string tag, object paramObject) { DataSet ds = new DataSet(); bool isSessionLocal = false; ISqlMapSession session = mapper.LocalSession; if (session == null) { session = mapper.CreateSqlMapSession(); session.OpenConnection(); isSessionLocal = true; } try { IDbCommand cmd = session.CreateCommand(CommandType.Text); cmd.Connection = session.Connection; cmd.CommandText = GetSql(tag, paramObject); IDbDataAdapter adapter = session.CreateDataAdapter(cmd); adapter.Fill(ds); } finally { if (isSessionLocal) { session.CloseConnection(); } } return ds.Tables[0]; } /// <summary> /// 得到参数化后的SQL /// </summary> /// <param name="tag">语句ID</param> /// <param name="paramObject">语句所需要的参数</param> /// <returns>sql语句</returns> protected static string GetSql(string tag, object paramObject) { IStatement statement = mapper.GetMappedStatement(tag).Statement; IMappedStatement mapStatement = mapper.GetMappedStatement(tag); ISqlMapSession session = mapper.CreateSqlMapSession(); RequestScope request = statement.Sql.GetRequestScope(mapStatement, paramObject, session); return request.PreparedStatement.PreparedSql; } /// <summary> /// 用于分页控件使用 /// </summary> /// <param name="tag">语句ID</param> /// <param name="paramObject">语句所需要的参数</param> /// <param name="PageSize">每页显示数目</param> /// <param name="curPage">当前页</param> /// <param name="recCount">记录总数</param> /// <returns>得到的DataTable</returns> public static DataTable ExcuteSelect(string tag, object paramObject, int PageSize, int curPage, out int recCount) { IDataReader dr = null; bool isSessionLocal = false; string sql = GetSql(tag, paramObject); string strCount = "select count(*) " + sql.Substring(sql.ToLower().IndexOf("from")); IDalSession session = mapper.LocalSession; DataTable dt = new DataTable(); if (session == null) { session = mapper.CreateSqlMapSession(); session.OpenConnection(); isSessionLocal = true; } try { IDbCommand cmdCount = session.CreateCommand(CommandType.Text); cmdCount.Connection = session.Connection; cmdCount.CommandText = strCount; object count = cmdCount.ExecuteScalar(); recCount = Convert.ToInt32(count); IDbCommand cmd = session.CreateCommand(CommandType.Text); cmd.Connection = session.Connection; cmd.CommandText = sql; dr = cmd.ExecuteReader(); dt = Paging(dr, PageSize, curPage); } finally { if (isSessionLocal) { session.CloseConnection(); } } return dt; } /**/ /// <summary> /// 取回合适数量的数据 /// </summary> /// <param name="dataReader"></param> /// <param name="PageSize"></param> /// <param name="curPage"></param> /// <returns></returns> protected static DataTable Paging(IDataReader dataReader, int PageSize, int curPage) { DataTable dt; dt = new DataTable(); int colCount = dataReader.FieldCount; for (int i = 0; i < colCount; i++) { dt.Columns.Add(new DataColumn(dataReader.GetName(i), dataReader.GetFieldType(i))); } // 读取数据。将DataReader中的数据读取到DataTable中 object[] vald = new object[colCount]; int iCount = 0; // 临时记录变量 while (dataReader.Read()) { // 当前记录在当前页记录范围内 if (iCount >= PageSize * (curPage - 1) && iCount < PageSize * curPage) { for (int i = 0; i < colCount; i++) vald[i] = dataReader.GetValue(i); dt.Rows.Add(vald); } else if (iCount > PageSize * curPage) { break; } iCount++; // 临时记录变量递增 } if (!dataReader.IsClosed) { dataReader.Close(); dataReader.Dispose(); } return dt; }}

使用语法如下:

// 添加引用

using System.Collections;

using IBatisNet.DataMapper;

using IBatisNet.DataMapper.Configuration;

// 1.添加

Hashtable ht_add = new Hashtable();

ht_add["Name"] = "IBatis";  // [注意]大小写要和xxxMap.xml里保持一致

ht_add["Age"] = 2001;

IBatisHepler.ExcuteInsert("Add", ht_add);

// 2.修改

Hashtable ht_up = new Hashtable();

ht_up["Id"] = "1";

ht_up["Name"] = "IBatis";

ht_up["Age"] = 2001;

IBatisHepler.ExcuteUpdate("Update", ht_up);

// 3.删除

IBatisHepler.ExcuteDelete("Delete", 14);

// 4.查询

Repeater1.DataSource = IBatisHepler.ExcuteSelectObj("GetPeopleById""1");

Repeater1.DataBind();

我对此框架的评价:配置文件有点多,用户需要去写东西比较多,调用查询不是很好用,尤其是条件查询很不方便。

代码下载:【①.本Demo下载】

Orm框架相关文章链接:

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3.iBatis for Net 代码生成器(CodeHelper)附下载地址

4.NBear简介与使用图解 

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