ibatis配置方法

sqlmap配置

总配置文件sqlmap-config.xml

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

<!DOCTYPE sqlMapConfig PUBLIC "-//ibatis.apache.org//DTD SQL Map Config 2.0//EN"

"http://ibatis.apache.org/dtd/sql-map-config-2.dtd">

<sqlMapConfig>

<settings cacheModelsEnabled="false" enhancementEnabled="false"

lazyLoadingEnabled="false" maxRequests="3000" maxSessions="3000"

maxTransactions="3000" useStatementNamespaces="false" />

<sqlMap resource="com/taobao/cun/scc/biz/sqlmap/base/sqlmap_common.xml"/>

<sqlMap resource="com/taobao/cun/scc/biz/sqlmap/base/sqlmap_base_cuntao_logistics_order.xml"/>

</sqlMapConfig>：

其中，

cacheModelsEnabled：对在此配置文件下的所有cache 进行全局性开/关设置。

enhancementEnabled：全局性地启用或禁用运行时字节码增强,以优化访 问 Java Bean 属性的性能,同时优化延迟加载的性能。

lazyLoadingEnabled：全局性设置懒加载。如果设为‘false’，则所有相关联的都会被初始化加载。

maxRequests，maxSessions，maxTransactions：同时执行 SQL 语句的最大线程数，同一时间内活动的最大session数，同时进入 SqlMapClient.startTransaction()的最大线程 数。通常三者关系为<<<。

useStatementNamespaces：必须使用全限定名来引用 mapped statement。

<sqlMap 标签下为sql语句的文件。

具体的sqlmap文件

sql语句用辰辉的自动生成工具，优点：

0.全自动生成（Do，Dao，DaoImp，Sqlmap文件），可以轻松应对表结构变化。将通用的字段提取成基类（id，creator，GMTcreate..），

1.Do层中，每个属性均有change布尔值来保证只更新用过set方法的参数。

2.将通用操作（select所有，动态参数，orderby，limit）提取成common，通过include标签嵌入sql语句，代码会非常简洁。

limit用来分页的防止注入写法：$pageOrderList[].orderColumn:METADATA$ $pageOrderList[].orderDir:SQLKEYWORD$

3.所有操作都<![CDATA[ ]]> 保证可以使用><等特殊字符。

例子

<?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="CuntaoLogisticsOrder">

<typeAlias alias="CuntaoLogisticsOrder" type="com.taobao.cun.scc.biz.logisticsorder.dataobject.CuntaoLogisticsOrderDO"/>

<sql id="CuntaoLogisticsOrder.COMMON_SELECT">

<![CDATA[

SELECT 

id as id

, gmt_create as gmtCreate

, creator as creator

, gmt_modified as gmtModified

, modifier as modifier

, is_deleted as isDeleted

, purchase_order_id as purchaseOrderId

, consignee_name as consigneeName

, consignee_address as consigneeAddress

, consignee_post as consigneePost

, consignee_phone as consigneePhone

, consignee_mobile_phone as consigneeMobilePhone

, consignee_province as consigneeProvince

, consignee_city as consigneeCity

, consignee_county as consigneeCounty

, consignee_town as consigneeTown

, memo as memo

, version as version

, out_logistics_id as outLogisticsId

, logistics_status as logisticsStatus

, consign_time as consignTime

from cuntao_logistics_order where is_deleted = 'n'

]]>

</sql>

<sql id="CuntaoLogisticsOrder.COMMON_CONDITION">

<isNotNull property="id" prepend="and">

id=#id#

</isNotNull>

<isNotNull property="gmtCreate" prepend="and">

gmt_create=#gmtCreate#

</isNotNull>

<isNotNull property="creator" prepend="and">

creator=#creator#

</isNotNull>

<isNotNull property="gmtModified" prepend="and">

gmt_modified=#gmtModified#

</isNotNull>

<isNotNull property="modifier" prepend="and">

modifier=#modifier#

</isNotNull>

<isNotNull property="isDeleted" prepend="and">

is_deleted=#isDeleted#

</isNotNull>

<isNotNull property="purchaseOrderId" prepend="and">

purchase_order_id=#purchaseOrderId#

</isNotNull>

<isNotNull property="consigneeName" prepend="and">

consignee_name=#consigneeName#

</isNotNull>

<isNotNull property="consigneeAddress" prepend="and">

consignee_address=#consigneeAddress#

</isNotNull>

<isNotNull property="consigneePost" prepend="and">

consignee_post=#consigneePost#

</isNotNull>

<isNotNull property="consigneePhone" prepend="and">

consignee_phone=#consigneePhone#

</isNotNull>

<isNotNull property="consigneeMobilePhone" prepend="and">

consignee_mobile_phone=#consigneeMobilePhone#

</isNotNull>

<isNotNull property="consigneeProvince" prepend="and">

consignee_province=#consigneeProvince#

</isNotNull>

<isNotNull property="consigneeCity" prepend="and">

consignee_city=#consigneeCity#

</isNotNull>

<isNotNull property="consigneeCounty" prepend="and">

consignee_county=#consigneeCounty#

</isNotNull>

<isNotNull property="consigneeTown" prepend="and">

consignee_town=#consigneeTown#

</isNotNull>

<isNotNull property="memo" prepend="and">

memo=#memo#

</isNotNull>

<isNotNull property="version" prepend="and">

version=#version#

</isNotNull>

<isNotNull property="outLogisticsId" prepend="and">

out_logistics_id=#outLogisticsId#

</isNotNull>

<isNotNull property="logisticsStatus" prepend="and">

logistics_status=#logisticsStatus#

</isNotNull>

<isNotNull property="consignTime" prepend="and">

consign_time=#consignTime#

</isNotNull>

</sql>

<sql id="CUNTAO_PAGING_COMMON">

<dynamic>

<isNotNull property="pageSize">

<![CDATA[

limit #pageStart# , #pageSize#

]]>

</isNotNull>

</dynamic>

</sql>

<sql id="CUNTAO_ORDER">

<dynamic>

<isNotNull property="pageOrderList" prepend="ORDER BY ">

<iterate property="pageOrderList" conjunction=",">

<![CDATA[ 

$pageOrderList[].orderColumn:METADATA$ $pageOrderList[].orderDir:SQLKEYWORD$ 

]]>

</iterate>

</isNotNull>

</dynamic>

</sql>

<select id="CuntaoLogisticsOrder.SELECT" resultClass="CuntaoLogisticsOrder" parameterClass="com.taobao.cun.
4000
scc.biz.logisticsorder.dataobject.CuntaoLogisticsOrderDO" >

<include refid="CuntaoLogisticsOrder.COMMON_SELECT"/>

<include refid="CuntaoLogisticsOrder.COMMON_CONDITION"/>

<include refid="CUNTAO_ORDER"/>

<include refid="CUNTAO_PAGING_COMMON"/>

</select>

</sqlMap>