iBATIS代码生成分析

1.分析目录结构“tools”（或者说模板）

2.首先分析ibatorConfig.xml文件

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

<!DOCTYPE ibatorConfiguration PUBLIC "-//Apache Software Foundation//DTD Apache iBATIS Ibator Configuration 1.0//EN" "http://ibatis.apache.org/dtd/ibator-config_1_0.dtd" >

<ibatorConfiguration>

    <classPathEntry

        location="F:\sqljdbc.jar" />

    <ibatorContext id="context1" targetRuntime="Ibatis2Java5">

        <!--

      classPathEntry 指定数据库jdbc驱动jar包的绝对路径。

    -->

        <!--

            id 这个id可以在使用命令行运行Abator时指定，以单独处理某一个ibatorContext targetRuntime

            Ibatis2Java5 生成适合JDK5.0的类，另一个选项是 Ibatis2Java2，生成适合Java2的类。

        -->

        <ibatorPlugin

            type="org.apache.ibatis.ibator.plugins.RenameExampleClassPlugin">

            <property name="searchString" value="Example$" />

            <property name="replaceString" value="Example" />

        </ibatorPlugin>

        <!--

            ibatorPlugin 继承自IbatorPluginAdapter，包名必须是

            org.apache.ibatis.ibator.plugins，具体实现可以参考官方文档 必须有替换和被替换字符属性。

        -->

<!--

        <jdbcConnection driverClass="org.postgresql.Driver"

            connectionURL="jdbc:postgresql://127.0.0.1:5432/hibernateTest" userId="postgres"

            password="postgres" />

-->

        <jdbcConnection driverClass="com.microsoft.sqlserver.jdbc.SQLServerDriver"

            connectionURL="jdbc:sqlserver://127.0.0.1:1433;databaseName=PanaDatabase" userId="sa"

            password="sasa" />

        <!--

            driverClass 数据库驱动类 connectionURL 数据库连接地址 userId 用户 password 密码

            还可以使用以下格式添加数据库的其他连接属性 <property name="" value=""/>

        -->

        <javaTypeResolver>

            <property name="forceBigDecimals" value="false" />

            <!--

                默认false，把JDBC DECIMAL 和 NUMERIC 类型解析为 Integer true，把JDBC DECIMAL 和

                NUMERIC 类型解析为java.math.BigDecimal

            -->

        </javaTypeResolver>

        <javaModelGenerator targetPackage="abator.model"

            targetProject="comboFramework/tools" />

        <!--

            targetProject 生成的Java Bean放置在哪个项目的哪个目录下 targetPackage 生成的Java Bean的包名

            一个有用的属性 <property name="trimStrings" value="true" /> 从数据库返回的值被清理前后的空格

            <property name="enableSubPackages" value="false" /> 是否在包名后加上scheme名称

        -->

        <sqlMapGenerator targetPackage="abator.sqlmap"

            targetProject="comboFramework/tools" />

        <!--

            targetProject 生成的 SqlMap.xml 文件放置在哪个项目的哪个目录下 targetPackage 生成的

            SqlMap.xml 文件的包名 <property name="enableSubPackages" value="false" />

            是否在包名后加上scheme名称

        -->

        <daoGenerator targetPackage="abator.dao" targetProject="comboFramework/tools"

            type="GENERIC-CI" />

        <table  tableName="InfoVoteItm"></table>

    </ibatorContext>

</ibatorConfiguration>

需要注意的几点是

1.指向的jdbc包是否正确或存在

    <classPathEntry

        location="F:\sqljdbc.jar" />

    <ibatorContext id="context1" targetRuntime="Ibatis2Java5">

2.数据库连接是否配置正确

        <jdbcConnection driverClass="com.microsoft.sqlserver.jdbc.SQLServerDriver"

            connectionURL="jdbc:sqlserver://127.0.0.1:1433;databaseName=PanaDatabase" userId="sa"

            password="sasa" />

3.指向的模板工具是否正确

        <!--

            targetProject 生成的Java Bean放置在哪个项目的哪个目录下 targetPackage 生成的Java Bean的包名

            一个有用的属性 <property name="trimStrings" value="true" /> 从数据库返回的值被清理前后的空格

            <property name="enableSubPackages" value="false" /> 是否在包名后加上scheme名称

        -->

        <sqlMapGenerator targetPackage="abator.sqlmap"

            targetProject="comboFramework/tools" />

        <!--

            targetProject 生成的 SqlMap.xml 文件放置在哪个项目的哪个目录下 targetPackage 生成的

            SqlMap.xml 文件的包名 <property name="enableSubPackages" value="false" />

            是否在包名后加上scheme名称

        -->

        <daoGenerator targetPackage="abator.dao" targetProject="comboFramework/tools"

            type="GENERIC-CI" />

4.指向需要生成的表

<table  tableName="InfoVoteItm"></table>

这里是单表（还没试过多个表一起生成呢，可以试试）

最终生成的结果如图

可以看出对iBATIS对表InfoVoteItm生成了三个模块即"sqlmap","model","dao"。

现在我们一个一个的来分析这三个部分。

在分析之前了解下InfoVoteItm表的结构

USE [PanaDatabase]

GO

/****** 对象:  Table [dbo].[InfoVoteItm]    脚本日期: 06/04/2012 16:22:55 ******/

SET ANSI_NULLS ON

GO

SET QUOTED_IDENTIFIER ON

GO

CREATE TABLE [dbo].[InfoVoteItm](

    [EmpID] [nvarchar](250) COLLATE Chinese_PRC_CI_AS NULL,

    [InfoDetail_ID] [int] NULL,

    [VoteItmDate] [datetime] NULL CONSTRAINT [DF_InfoVoteItm_VoteItmDate]  DEFAULT (getdate())

) ON [PRIMARY]

A.首先我们来分析"sqlmap"这一部分对InfoVoteItm表生成的文件InfoVoteItm_SqlMap.xml

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

<!DOCTYPE sqlMap PUBLIC "-//ibatis.apache.org//DTD SQL Map 2.0//EN" "http://ibatis.apache.org/dtd/sql-map-2.dtd" >

<sqlMap namespace="InfoVoteItm" >

  <resultMap id="ibatorgenerated_BaseResultMap" class="abator.model.Infovoteitm" >

    <!--

      WARNING - This element is automatically generated by Apache iBATIS ibator, do not modify.

      This element was generated on Wed Mar 09 16:57:25 CST 2011.

    -->

    <result column="EmpID" property="empid" jdbcType="VARCHAR" />

    <result column="InfoDetail_ID" property="infodetailId" jdbcType="INTEGER" />

    <result column="VoteItmDate" property="voteitmdate" jdbcType="TIMESTAMP" />

  </resultMap>

  <sql id="ibatorgenerated_Example_Where_Clause" >

    <!--

      WARNING - This element is automatically generated by Apache iBATIS ibator, do not modify.

      This element was generated on Wed Mar 09 16:57:25 CST 2011.

    -->

    <iterate property="oredCriteria" conjunction="or" prepend="where" removeFirstPrepend="iterate" >

      <isEqual property="oredCriteria[].valid" compareValue="true" >

        (

        <iterate prepend="and" property="oredCriteria[].criteriaWithoutValue" conjunction="and" >

          $oredCriteria[].criteriaWithoutValue[]$

        </iterate>

        <iterate prepend="and" property="oredCriteria[].criteriaWithSingleValue" conjunction="and" >

          $oredCriteria[].criteriaWithSingleValue[].condition$

            #oredCriteria[].criteriaWithSingleValue[].value#

        </iterate>

        <iterate prepend="and" property="oredCriteria[].criteriaWithListValue" conjunction="and" >

          $oredCriteria[].criteriaWithListValue[].condition$

          <iterate property="oredCriteria[].criteriaWithListValue[].values" open="(" close=")" conjunction="," >

            #oredCriteria[].criteriaWithListValue[].values[]#

          </iterate>

        </iterate>

        <iterate prepend="and" property="oredCriteria[].criteriaWithBetweenValue" conjunction="and" >

          $oredCriteria[].criteriaWithBetweenValue[].condition$

          #oredCriteria[].criteriaWithBetweenValue[].values[0]# and

          #oredCriteria[].criteriaWithBetweenValue[].values[1]#

        </iterate>

        )

      </isEqual>

    </iterate>

  </sql>

  <select id="ibatorgenerated_selectByExample" resultMap="ibatorgenerated_BaseResultMap" parameterClass="abator.model.InfovoteitmExample" >

    <!--

      WARNING - This element is automatically generated by Apache iBATIS ibator, do not modify.

      This element was generated on Wed Mar 09 16:57:25 CST 2011.

    -->

    select EmpID, InfoDetail_ID, VoteItmDate

    from InfoVoteItm

    <isParameterPresent >

      <include refid="InfoVoteItm.ibatorgenerated_Example_Where_Clause" />

      <isNotNull property="orderByClause" >

        order by $orderByClause$

      </isNotNull>

    </isParameterPresent>

  </select>

  <delete id="ibatorgenerated_deleteByExample" parameterClass="abator.model.InfovoteitmExample" >

    <!--

      WARNING - This element is automatically generated by Apache iBATIS ibator, do not modify.

      This element was generated on Wed Mar 09 16:57:25 CST 2011.

    -->

    delete from InfoVoteItm

    <include refid="InfoVoteItm.ibatorgenerated_Example_Where_Clause" />

  </delete>

  <insert id="ibatorgenerated_insert" parameterClass="abator.model.Infovoteitm" >

    <!--

      WARNING - This element is automatically generated by Apache iBATIS ibator, do not modify.

      This element was generated on Wed Mar 09 16:57:25 CST 2011.

    -->

    insert into InfoVoteItm (EmpID, InfoDetail_ID, VoteItmDate)

    values (#empid:VARCHAR#, #infodetailId:INTEGER#, #voteitmdate:TIMESTAMP#)

  </insert>

  <insert id="ibatorgenerated_insertSelective" parameterClass="abator.model.Infovoteitm" >

    <!--

      WARNING - This element is automatically generated by Apache iBATIS ibator, do not modify.

      This element was generated on Wed Mar 09 16:57:25 CST 2011.

    -->

    insert into InfoVoteItm

    <dynamic prepend="(" >

      <isNotNull prepend="," property="empid" >

        EmpID

      </isNotNull>

      <isNotNull prepend="," property="infodetailId" >

        InfoDetail_ID

      </isNotNull>

      <isNotNull prepend="," property="voteitmdate" >

        VoteItmDate

      </isNotNull>

      )

    </dynamic>

    values

    <dynamic prepend="(" >

      <isNotNull prepend="," property="empid" >

        #empid:VARCHAR#

      </isNotNull>

      <isNotNull prepend="," property="infodetailId" >

        #infodetailId:INTEGER#

      </isNotNull>

      <isNotNull prepend="," property="voteitmdate" >

        #voteitmdate:TIMESTAMP#

      </isNotNull>

      )

    </dynamic>

  </insert>

  <select id="ibatorgenerated_countByExample" parameterClass="abator.model.InfovoteitmExample" resultClass="java.lang.Integer" >

    <!--

      WARNING - This element is automatically generated by Apache iBATIS ibator, do not modify.

      This element was generated on Wed Mar 09 16:57:25 CST 2011.

    -->

    select count(*) from InfoVoteItm

    <include refid="InfoVoteItm.ibatorgenerated_Example_Where_Clause" />

  </select>

  <update id="ibatorgenerated_updateByExampleSelective" >

    <!--

      WARNING - This element is automatically generated by Apache iBATIS ibator, do not modify.

      This element was generated on Wed Mar 09 16:57:25 CST 2011.

    -->

    update InfoVoteItm

    <dynamic prepend="set" >

      <isNotNull prepend="," property="record.empid" >

        EmpID = #record.empid:VARCHAR#

      </isNotNull>

      <isNotNull prepend="," property="record.infodetailId" >

        InfoDetail_ID = #record.infodetailId:INTEGER#

      </isNotNull>

      <isNotNull prepend="," property="record.voteitmdate" >

        VoteItmDate = #record.voteitmdate:TIMESTAMP#

      </isNotNull>

    </dynamic>

    <isParameterPresent >

      <include refid="InfoVoteItm.ibatorgenerated_Example_Where_Clause" />

    </isParameterPresent>

  </update>

  <update id="ibatorgenerated_updateByExample" >

    <!--

      WARNING - This element is automatically generated by Apache iBATIS ibator, do not modify.

      This element was generated on Wed Mar 09 16:57:25 CST 2011.

    -->

    update InfoVoteItm

    set EmpID = #record.empid:VARCHAR#,

      InfoDetail_ID = #record.infodetailId:INTEGER#,

      VoteItmDate = #record.voteitmdate:TIMESTAMP#

    <isParameterPresent >

      <include refid="InfoVoteItm.ibatorgenerated_Example_Where_Clause" />

    </isParameterPresent>

  </update>

</sqlMap>

可以看出对表InfoVoteItm做了实体映射（实现增加add，删除delete，修改update，查询select）

首先分析下映射实体类

  <resultMap id="ibatorgenerated_BaseResultMap" class="abator.model.Infovoteitm" >

    <!--

      WARNING - This element is automatically generated by Apache iBATIS ibator, do not modify.

      This element was generated on Wed Mar 09 16:57:25 CST 2011.

    -->

    <result column="EmpID" property="empid" jdbcType="VARCHAR" />

    <result column="InfoDetail_ID" property="infodetailId" jdbcType="INTEGER" />

    <result column="VoteItmDate" property="voteitmdate" jdbcType="TIMESTAMP" />

  </resultMap>

其中"id"起标识的作用，"class"映射由iBATIS生成的实体类（路径指向，若要移动该文件此处要及得修改）

"column"可以随意定义但前提是实体类中有相匹配的字段即"property","jdbcType"设置字段属性（属性与数据库字段类型相同）

查询（可以看出resultMap是对实体类的一种映射，如果查询select中的字段在实体类中未定义则会出现异常，parameterClass指向的是参数需要注意与class的区别）

  <select id="ibatorgenerated_selectByExample" resultMap="ibatorgenerated_BaseResultMap" parameterClass="abator.model.InfovoteitmExample" >

    <!--

      WARNING - This element is automatically generated by Apache iBATIS ibator, do not modify.

      This element was generated on Wed Mar 09 16:57:25 CST 2011.

    -->

    select EmpID, InfoDetail_ID, VoteItmDate

    from InfoVoteItm

    <isParameterPresent >

      <include refid="InfoVoteItm.ibatorgenerated_Example_Where_Clause" />

      <isNotNull property="orderByClause" >

        order by $orderByClause$

      </isNotNull>

    </isParameterPresent>

  </select>

查询返回结果值

  <select id="ibatorgenerated_countByExample" parameterClass="abator.model.InfovoteitmExample" resultClass="java.lang.Integer" >

    <!--

      WARNING - This element is automatically generated by Apache iBATIS ibator, do not modify.

      This element was generated on Wed Mar 09 16:57:25 CST 2011.

    -->

    select count(*) from InfoVoteItm

    <include refid="InfoVoteItm.ibatorgenerated_Example_Where_Clause" />

  </select>

删除

  <delete id="ibatorgenerated_deleteByExample" parameterClass="abator.model.InfovoteitmExample" >

    <!--

      WARNING - This element is automatically generated by Apache iBATIS ibator, do not modify.

      This element was generated on Wed Mar 09 16:57:25 CST 2011.

    -->

    delete from InfoVoteItm

    <include refid="InfoVoteItm.ibatorgenerated_Example_Where_Clause" />

  </delete>

添加

1.添加所有项

  <insert id="ibatorgenerated_insert" parameterClass="abator.model.Infovoteitm" >

    <!--

      WARNING - This element is automatically generated by Apache iBATIS ibator, do not modify.

      This element was generated on Wed Mar 09 16:57:25 CST 2011.

    -->

    insert into InfoVoteItm (EmpID, InfoDetail_ID, VoteItmDate)

    values (#empid:VARCHAR#, #infodetailId:INTEGER#, #voteitmdate:TIMESTAMP#)

  </insert>

2.选择性添加

  <insert id="ibatorgenerated_insertSelective" parameterClass="abator.model.Infovoteitm" >

    <!--

      WARNING - This element is automatically generated by Apache iBATIS ibator, do not modify.

      This element was generated on Wed Mar 09 16:57:25 CST 2011.

    -->

    insert into InfoVoteItm

    <dynamic prepend="(" >

      <isNotNull prepend="," property="empid" >

        EmpID

      </isNotNull>

      <isNotNull prepend="," property="infodetailId" >

        InfoDetail_ID

      </isNotNull>

      <isNotNull prepend="," property="voteitmdate" >

        VoteItmDate

      </isNotNull>

      )

    </dynamic>

    values

    <dynamic prepend="(" >

      <isNotNull prepend="," property="empid" >

        #empid:VARCHAR#

      </isNotNull>

      <isNotNull prepend="," property="infodetailId" >

        #infodetailId:INTEGER#

      </isNotNull>

      <isNotNull prepend="," property="voteitmdate" >

        #voteitmdate:TIMESTAMP#

      </isNotNull>

      )

    </dynamic>

  </insert>

变更

1.选择性变更（条件可选）

  <update id="ibatorgenerated_updateByExampleSelective" >

    <!--

      WARNING - This element is automatically generated by Apache iBATIS ibator, do not modify.

      This element was generated on Wed Mar 09 16:57:25 CST 2011.

    -->

    update InfoVoteItm

    <dynamic prepend="set" >

      <isNotNull prepend="," property="record.empid" >

        EmpID = #record.empid:VARCHAR#

      </isNotNull>

      <isNotNull prepend="," property="record.infodetailId" >

        InfoDetail_ID = #record.infodetailId:INTEGER#

      </isNotNull>

      <isNotNull prepend="," property="record.voteitmdate" >

        VoteItmDate = #record.voteitmdate:TIMESTAMP#

      </isNotNull>

    </dynamic>

    <isParameterPresent >

      <include refid="InfoVoteItm.ibatorgenerated_Example_Where_Clause" />

    </isParameterPresent>

  </update>

2.条件必须

  <update id="ibatorgenerated_updateByExample" >

    <!--

      WARNING - This element is automatically generated by Apache iBATIS ibator, do not modify.

      This element was generated on Wed Mar 09 16:57:25 CST 2011.

    -->

    update InfoVoteItm

    set EmpID = #record.empid:VARCHAR#,

      InfoDetail_ID = #record.infodetailId:INTEGER#,

      VoteItmDate = #record.voteitmdate:TIMESTAMP#

    <isParameterPresent >

      <include refid="InfoVoteItm.ibatorgenerated_Example_Where_Clause" />

    </isParameterPresent>

  </update>

"model"是对实体类的封装就不说了，看下"dao"层。

"dao"层生成了两个文件InfovoteitmDAO是接口类对方法的声明（包括增，删，改，查）而InfovoteitmDAOImpl是类是对InfovoteitmDAO接口方法的

实现。

InfovoteitmDAO 接口

package abator.dao;

import abator.model.Infovoteitm;

import abator.model.InfovoteitmExample;

import java.sql.SQLException;

import java.util.List;

public interface InfovoteitmDAO {

    /**

     * This method was generated by Apache iBATIS ibator.

     * This method corresponds to the database table InfoVoteItm

     *

     * @ibatorgenerated Wed Mar 09 16:57:25 CST 2011

     */

    int countByExample(InfovoteitmExample example) throws SQLException;

    /**

     * This method was generated by Apache iBATIS ibator.

     * This method corresponds to the database table InfoVoteItm

     *

     * @ibatorgenerated Wed Mar 09 16:57:25 CST 2011

     */

    int deleteByExample(InfovoteitmExample example) throws SQLException;

    /**

     * This method was generated by Apache iBATIS ibator.

     * This method corresponds to the database table InfoVoteItm

     *

     * @ibatorgenerated Wed Mar 09 16:57:25 CST 2011

     */

    void insert(Infovoteitm record) throws SQLException;

    /**

     * This method was generated by Apache iBATIS ibator.

     * This method corresponds to the database table InfoVoteItm

     *

     * @ibatorgenerated Wed Mar 09 16:57:25 CST 2011

     */

    void insertSelective(Infovoteitm record) throws SQLException;

    /**

     * This method was generated by Apache iBATIS ibator.

     * This method corresponds to the database table InfoVoteItm

     *

     * @ibatorgenerated Wed Mar 09 16:57:25 CST 2011

     */

    List<Infovoteitm> selectByExample(InfovoteitmExample example) throws SQLException;

    /**

     * This method was generated by Apache iBATIS ibator.

     * This method corresponds to the database table InfoVoteItm

     *

     * @ibatorgenerated Wed Mar 09 16:57:25 CST 2011

     */

    int updateByExampleSelective(Infovoteitm record, InfovoteitmExample example) throws SQLException;

    /**

     * This method was generated by Apache iBATIS ibator.

     * This method corresponds to the database table InfoVoteItm

     *

     * @ibatorgenerated Wed Mar 09 16:57:25 CST 2011

     */

    int updateByExample(Infovoteitm record, InfovoteitmExample example) throws SQLException;

}

InfovoteitmDAOImpl类

package abator.dao;

import abator.model.Infovoteitm;

import abator.model.InfovoteitmExample;

import com.ibatis.sqlmap.client.SqlMapClient;

import java.sql.SQLException;

import java.util.List;

public class InfovoteitmDAOImpl implements InfovoteitmDAO {

    /**

     * This field was generated by Apache iBATIS ibator.

     * This field corresponds to the database table InfoVoteItm

     *

     * @ibatorgenerated Wed Mar 09 16:57:25 CST 2011

     */

    private SqlMapClient sqlMapClient;

    /**

     * This method was generated by Apache iBATIS ibator.

     * This method corresponds to the database table InfoVoteItm

     *

     * @ibatorgenerated Wed Mar 09 16:57:25 CST 2011

     */

    public InfovoteitmDAOImpl(SqlMapClient sqlMapClient) {

        super();

        this.sqlMapClient = sqlMapClient;

    }

    /**

     * This method was generated by Apache iBATIS ibator.

     * This method corresponds to the database table InfoVoteItm

     *

     * @ibatorgenerated Wed Mar 09 16:57:25 CST 2011

     */

    public int countByExample(InfovoteitmExample example) throws SQLException {

        Integer count = (Integer)  sqlMapClient.queryForObject("InfoVoteItm.ibatorgenerated_countByExample", example);

        return count;

    }

    /**

     * This method was generated by Apache iBATIS ibator.

     * This method corresponds to the database table InfoVoteItm

     *

     * @ibatorgenerated Wed Mar 09 16:57:25 CST 2011

     */

    public int deleteByExample(InfovoteitmExample example) throws SQLException {

        int rows = sqlMapClient.delete("InfoVoteItm.ibatorgenerated_deleteByExample", example);

        return rows;

    }

    /**

     * This method was generated by Apache iBATIS ibator.

     * This method corresponds to the database table InfoVoteItm

     *

     * @ibatorgenerated Wed Mar 09 16:57:25 CST 2011

     */

    public void insert(Infovoteitm record) throws SQLException {

        sqlMapClient.insert("InfoVoteItm.ibatorgenerated_insert", record);

    }

    /**

     * This method was generated by Apache iBATIS ibator.

     * This method corresponds to the database table InfoVoteItm

     *

     * @ibatorgenerated Wed Mar 09 16:57:25 CST 2011

     */

    public void insertSelective(Infovoteitm record) throws SQLException {

        sqlMapClient.insert("InfoVoteItm.ibatorgenerated_insertSelective", record);

    }

    /**

     * This method was generated by Apache iBATIS ibator.

     * This method corresponds to the database table InfoVoteItm

     *

     * @ibatorgenerated Wed Mar 09 16:57:25 CST 2011

     */

    @SuppressWarnings("unchecked")

    public List<Infovoteitm> selectByExample(InfovoteitmExample example) throws SQLException {

        List<Infovoteitm> list = sqlMapClient.queryForList("InfoVoteItm.ibatorgenerated_selectByExample", example);

        return list;

    }

    /**

     * This method was generated by Apache iBATIS ibator.

     * This method corresponds to the database table InfoVoteItm

     *

     * @ibatorgenerated Wed Mar 09 16:57:25 CST 2011

     */

    public int updateByExampleSelective(Infovoteitm record, InfovoteitmExample example) throws SQLException {

        UpdateByExampleParms parms = new UpdateByExampleParms(record, example);

        int rows = sqlMapClient.update("InfoVoteItm.ibatorgenerated_updateByExampleSelective", parms);

        return rows;

    }

    /**

     * This method was generated by Apache iBATIS ibator.

     * This method corresponds to the database table InfoVoteItm

     *

     * @ibatorgenerated Wed Mar 09 16:57:25 CST 2011

     */

    public int updateByExample(Infovoteitm record, InfovoteitmExample example) throws SQLException {

        UpdateByExampleParms parms = new UpdateByExampleParms(record, example);

        int rows = sqlMapClient.update("InfoVoteItm.ibatorgenerated_updateByExample", parms);

        return rows;

    }

    /**

     * This class was generated by Apache iBATIS ibator.

     * This class corresponds to the database table InfoVoteItm

     *

     * @ibatorgenerated Wed Mar 09 16:57:25 CST 2011

     */

    private static class UpdateByExampleParms extends InfovoteitmExample {

        private Object record;

        public UpdateByExampleParms(Object record, InfovoteitmExample example) {

            super(example);

            this.record = record;

        }

        public Object getRecord() {

            return record;

        }

    }

}

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【异常及源码分析】org.mybatis.spring.MyBatisSystemException: nested exception is org.apache.ibatis.type.TypeException: Could not set parameters for mapping: ParameterMapping
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