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ibatis 使用筆記

1.下載ibatis 2.17
http://cvs.apache.org/dist/ibatis/ibatis.java/builds/iBATIS_DBL-2.1.7.597.zip
2.打開MYsql建表

CREATE ? TABLE ?`category`?(

??`catid`? varchar ( 10 )? NOT ? NULL ,

??`name`? varchar ( 80 )? default ? NULL ,

??`descn`? varchar ( 255 )? default ? NULL ,

?? PRIMARY ? KEY ??(`catid`)

)?ENGINE = InnoDB? DEFAULT ?CHARSET = gb2312;

3.寫上配置文件共包括3個(gè)配置文件
1.database.properties
2.dao.xml
3.Category.xml
4.sql-map-config.xml

database.properties

driver = org.gjt.mm.mysql.Driver

password = wujun

url = jdbc:mysql: // localhost: 3306 / JPETSTORE

username = root

dao.xml配置文件

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

<! DOCTYPE?daoConfig

????PUBLIC?"-//ibatis.apache.org//DTD?DAO?Configuration?2.0//EN"

????"http://ibatis.apache.org/dtd/dao-2.dtd" > ?

< daoConfig > ?

?? < context > ?

???? < transactionManager? type ="SQLMAP" >

?????? < property? name ="SqlMapConfigResource"

????????value ="com/wj/firstibatis/sql-map-config.xml" />

???? </ transactionManager > ?

???? < dao? interface ="com.wj.firstibatis.Idao"

??????implementation ="com.wj.firstibatis.Dao" />

?? </ context > ?

</ daoConfig >

sql-map-config.xml配置文件

<? 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 > ?

?? < properties? resource ="com/wj/firstibatis/database.properties" /> ?

?? < transactionManager? type ="JDBC" >

???? < dataSource? type ="SIMPLE" >

?????? < property? value ="${driver}" ?name ="JDBC.Driver" />

?????? < property? value ="${url}" ?name ="JDBC.ConnectionURL" />

?????? < property? value ="${username}" ?name ="JDBC.Username" />

?????? < property? value ="${password}" ?name ="JDBC.Password" />

???? </ dataSource >

?? </ transactionManager > ?

?? < sqlMap? resource ="com/wj/firstibatis/Category.xml" /> ?

</ sqlMapConfig >

Category.xml配置文件

<? 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 ="Category" >

?? < typeAlias? alias ="category" ?type ="com.wj.firstibatis.CategoryVO" />

?? < cacheModel? id ="categoryCache" ?type ="LRU" >

???? < flushInterval? hours ="24" />

???? < property? name ="size" ?value ="100" />

?? </ cacheModel >

?? < resultMap? id ="categoryResult" ?class ="category" >

???? < result? property ="categoryId" ?column ="CATID" />

???? < result? property ="name" ?column ="NAME" />

???? < result? property ="description" ?column ="DESCN" />

?? </ resultMap >

?? < select? id ="getCategory" ?resultClass ="category" ?parameterClass ="string" ?cacheModel ="categoryCache" >

????SELECT

??????CATID?AS?categoryId,

??????NAME,

??????DESCN?AS?description

????FROM?CATEGORY

????WHERE?CATID?=?#categoryId#

?? </ select >

?? < select? id ="getCategoryList" ?resultClass ="category" ?cacheModel ="categoryCache" >

????SELECT

??????CATID?AS?categoryId,

??????NAME,

??????DESCN?AS?description

????FROM?CATEGORY

?? </ select >

</ sqlMap >

寫CategoryVO.java

package?com.wj.firstibatis;

public?class?CategoryVO?{

????private?String?categoryId;

????private?String?name;

????private?String?description;

//getter?setter

接著寫Idao.java接口

package?com.wj.firstibatis;

import?java.util.List;

public?interface?Idao?{

????public?List?getAll();

????public?CategoryVO?getById(String?categoryId);

}

實(shí)現(xiàn)類Dao.java

package?com.wj.firstibatis;

import?java.util.List;

import?com.ibatis.dao.client.DaoManager;

import?com.ibatis.dao.client.template.SqlMapDaoTemplate;

public?class?Dao?extends?SqlMapDaoTemplate??implements?Idao{

?????????

????public?Dao(DaoManager?daoManager){

????????super(daoManager);

????}

????public?List?getAll()

????{

????????return?this.queryForList("getCategoryList",?null);

????}

????public?CategoryVO?getById(String?categoryId)

????{

????????return?(CategoryVO)?queryForObject("getCategory",?categoryId);

????}

}

測試。。

public ? void ?getCategoryAll()

???? {

???????? try

???????? {

????????DaoManager?daoManager? = ? null ;

????????Reader?reader;

????????reader? = ? new ?FileReader( " C:/Documents?and?Settings/wujun/workspace/ibatisTest/bin/com/wj/firstibatis/dao.xml " );

??????? // reader?=?new?FileReader("com/wj.firstibatis/dao.xml");

????????daoManager? = ?DaoManagerBuilder.buildDaoManager(reader);

????????daoManager.startTransaction();

????????Idao?idao? = ?(Idao)?daoManager.getDao(Idao. class );

????????List?li = idao.getAll();

???????? for ( int ?i = 0 ;i < li.size();i ++ )

???????? {

????????????CategoryVO?vo = (CategoryVO)li.get(i);

????????????System.out.println( " categoryId " + vo.getCategoryId());

????????????System.out.println( " Name: " + vo.getName());

????????????System.out.println( " Descrition: " + vo.getDescription());

????????}

????????

????????}

???????? catch (Exception?ee)

???????? {

???????????log.info( " error: " + ee.getMessage());

????????}

????}

成功了.....

posted on 2006-05-23 10:30 record java and net 閱讀(2656) 評論(1) 編輯收藏所屬分類: java

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# re: ibatis 使用筆記 2006-05-25 18:57 pc

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