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

<!DOCTYPE sql-map

PUBLIC "-//iBATIS.com//DTD SQL Map 1.0//EN"

"http://www.ibatis.com/dtd/sql-map.dtd">

<sql-map name="Person">

<!-- Use primitive wrapper type (e.g. Integer) as parameter and allow results to

be auto-mapped results to Person object (JavaBean) properties -->

<mapped-statement name="getPerson" result-class="examples.domain.Person">

SELECT

PER_ID as id,

PER_FIRST_NAME as firstName,

PER_LAST_NAME as lastName,

PER_BIRTH_DATE as birthDate,

PER_WEIGHT_KG as weightInKilograms,

PER_HEIGHT_M as heightInMeters

FROM PERSON

WHERE PER_ID = #value#

</mapped-statement>

<!-- Use Person object (JavaBean) properties as parameters for insert. Each of the

parameters in the #hash# symbols is a JavaBeans property. -->

<mapped-statement name="insertPerson" >

INSERT INTO

PERSON (PER_ID, PER_FIRST_NAME, PER_LAST_NAME,

PER_BIRTH_DATE, PER_WEIGHT_KG, PER_HEIGHT_M)

VALUES (#id#, #firstName#, #lastName#,

#birthDate#, #weightInKilograms#, #heightInMeters#)

</mapped-statement>

<!-- Use Person object (JavaBean) properties as parameters for update. Each of the

parameters in the #hash# symbols is a JavaBeans property. -->

<mapped-statement name="updatePerson" >

UPDATE PERSON

SET (PER_ID = PER_FIRST_NAME = #firstName#,

PER_LAST_NAME = #lastName#, PER_BIRTH_DATE = #birthDate#,

PER_WEIGHT_KG = #weightInKilograms#,

PER_HEIGHT_M = #heightInMeters#)

WHERE PER_ID = #id#

</mapped-statement>

<!-- Use Person object (JavaBean) “id” properties as parameters for delete. Each of the

parameters in the #hash# symbols is a JavaBeans property. -->

<mapped-statement name="deletePerson" >

DELETE PERSON

WHERE PER_ID = #id#

</mapped-statement>

</sql-map>

private MyAppSqlConfig {

private static final SqlMap sqlMap;

static {

try {

String resource = “com/ibatis/example/sql-map-config.xml”;

Reader reader = Resources.getResourceAsReader (resource);

sqlMap = XmlSqlMapBuilder.buildSqlMap(reader);

} catch (Exception e) {

// If you get an error at this point, it matters little what it was. It is going to be

// unrecoverable and we will want the app to blow up good so we are aware of the

// problem. You should always log such errors and re-throw them in such a way that

// you can be made immediately aware of the problem.

e.printStackTrace();

throw new RuntimeException (“Error initializing MyAppSqlConfig class. Cause: ” + e);

}

}

public static getSqlMapInstance () {

return sqlMap;

}

}

## SimpleDataSource properties
## Use only if useSimpleConfiguration=true

SimpleDriver=oracle.jdbc.OracleDriver
SimpleUrl=jdbc:oracle:thin:@10.0.0.5:1521:champion
SimpleUsername=pet
SimplePassword=pet

PUBLIC "-//iBATIS.com//DTD DAO Configuration 1.0//EN"
"http://www.ibatis.com/dtd/dao.dtd">

maxExecute="0"
maxExecutePerConnection="0"
maxTransactions="0"
cacheModelsEnabled="true"
statementCacheSize="175"
useBeansMetaClasses="false"
useGlobalTransactions="false" />

factory-class="com.ibatis.db.sqlmap.datasource.DbcpDataSourceFactory"
default="true" >

PUBLIC "-//iBATIS.com//DTD SQL Map 1.0//EN"
"http://www.ibatis.com/dtd/sql-map.dtd">

select CATID, NAME, DESCN from CATEGORY where CATID = #categoryId#

select CATID, NAME, DESCN from CATEGORY


CATID = #categoryId#


NAME = #name#


DESCN = #description#






select count(1) as value from CATEGORY



mapped-statement
============================================= -->

update CATEGORY


NAME = #name#


DESCN = #description#


where
CATID =#categoryId#


mapped-statement
============================================= -->

delete from CATEGORY
where CATID =#categoryId#

OPTIONAL EXPLICIT PARAMETER MAP
============================================= -->

MAPPED STATEMENTS - w/Explicit Parameter Map
============================================= -->

insert into CATEGORY (
CATID,NAME,DESCN)
values (
?,?,?
)

这一段的内容表示返回的对象是com.ewuxi.champion.persistence.vo.Category，也就是我们值对象。当执行查询的时候，dblay会封装出一个Category对象或者一个Category的list集合。其中数据列CATID就对象javabean的categoryId值。name是自定义的

select CATID, NAME, DESCN from CATEGORY where CATID = #categoryId#

此处result-map="result"表示返回结果以后，就会参照前面的result来返回对象。select CATID, NAME, DESCN from CATEGORY where CATID = #categoryId#标准的SQL，只不过这一点CATID = #categoryId#有些不同，#categoryId#表示传递一个Category对象时，Dblay会自动取得categoryId的值来执行SQL

update CATEGORY


NAME = #name#


DESCN = #description#


where
CATID =#categoryId#

这个地方就体现了dblayer的强大之处，动态SQL。平常我们经常碰到的情况是根据不同的情况，执行的SQL有一点点不一样。写在程序里，要写不少的if then之类的，在这里，dbLayer给你一下解决了。比如在这里，我们三个值都是String对象，所以通过isNotNull就可以实现几种不同的update了，比如，如果我只想修改DESCN这个字段，只要传过去的Category对象只有categoryId和description有值，就会生成update CATEGORY set DESCN = #description# where CATID =#categoryId#。同样如果传递的对象只有categoryId和name有值，就会生成update CATEGORY set NAME = #name# where CATID =#categoryId#。是否很强大？:)

OPTIONAL EXPLICIT PARAMETER MAP
============================================= -->

MAPPED STATEMENTS - w/Explicit Parameter Map
============================================= -->

insert into CATEGORY (
CATID,NAME,DESCN)
values (
?,?,?
)

import java.io.Reader;
import java.util.Properties;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

import com.ibatis.common.resources.Resources;
import com.ibatis.db.dao.DaoManager;

/**
* @author champion
*
* To change the template for this generated type comment go to
* Window - Preferences - Java - Code Generation - Code and Comments
*/
public class Service {
static Log log = LogFactory.getLog(Service.class);
public static void initSet() {

try {

String resource = null;

resource = "properties/simple/dao.xml";
log.info("Using SIMPLE configuration. (" + resource + ")");

Reader reader = Resources.getResourceAsReader(resource);
DaoManager.configure(reader);

} catch (Exception e) {
throw new RuntimeException(
"Could not initialize BaseLogic. Cause: " + e);
}
}

}

if (daoManager == null) {
daoManager = DaoManager.getInstance();
}

SqlMapDaoTransaction trans = (SqlMapDaoTransaction) daoManager.getLocalTransaction();
SqlMap sqlMap = trans.getSqlMap();

return sqlMap;
} catch (Exception e) {
throw new DaoException(e);
}
}

public static SqlMap getSqlMap(String c) throws DaoException {
try {
DaoManager daoManager = DaoManager.getInstance(c);
SqlMapDaoTransaction trans = (SqlMapDaoTransaction) daoManager.getLocalTransaction();
SqlMap sqlMap = trans.getSqlMap();

return sqlMap;
} catch (Exception e) {
throw new DaoException(e);
}
}

public static boolean inTransaction() throws Exception {
try {
DaoManager.getInstance().getLocalTransaction();

return true;
} catch (Exception e) {
return false;
}
}

/**
* @throws Exception
* 放弃事务
*/
public static void rollBack() {

try {
DaoManager.getInstance().rollbackTransaction();
} catch (Exception e) {
LogFactory.getLog(DaoCommon.class).error(e, e);
}
}

/**
* @throws Exception
* 提交事务
*/
public static void commit() throws Exception {
DaoManager.getInstance().commitTransaction();
}

import com.ewuxi.champion.exception.DaoException;
import com.ewuxi.champion.persistence.vo.Category;
import com.ibatis.db.sqlmap.SqlMap;

/**
* @author champion
*
*category数据库操作对象
*/

public class CategoryDb {

/**
* @param vo
* @throws DaoException
* 插入一条记录
*/
public void insert(Category vo) throws DaoException{
try {
SqlMap sqlMap=DaoCommon.getSqlMap(DaoCommon.getDefautDao());
sqlMap.executeUpdate("insertCategoryDao",vo);
} catch (Exception e) {
throw new DaoException(e);
}
}
/**
* @param vo
* @throws DaoException
* 删除一条记录
*/
public void delete(Category vo) throws DaoException{
try {
SqlMap sqlMap=DaoCommon.getSqlMap(DaoCommon.getDefautDao());
sqlMap.executeUpdate("deleteByPrimaryKeyCategoryDao",vo);
} catch (Exception e) {
throw new DaoException(e);
}
}
/**
* @param vo
* @throws DaoException
* 修改一条记录
*/
public void update(Category vo) throws DaoException{
try {
SqlMap sqlMap=DaoCommon.getSqlMap(DaoCommon.getDefautDao());
sqlMap.executeUpdate("updateByPrimaryKeyCategoryDao",vo);
} catch (Exception e) {
throw new DaoException(e);
}
}
/**
* @param vo
* @return
* @throws DaoException
* 查找一条记录
*/
public Category findByPk(Category vo) throws DaoException{
try {
SqlMap sqlMap=DaoCommon.getSqlMap(DaoCommon.getDefautDao());
return (Category) sqlMap.executeQueryForObject("findByPrimaryKeyCategoryDao",vo);
} catch (Exception e) {
throw new DaoException(e);
}
}

}

/*
* Created on 2003-10-11
*
* To change the template for this generated file go to
* Window - Preferences - Java - Code Generation - Code and Comments
*/
package com.ewuxi.champion.persistence.dao;

import com.ewuxi.champion.exception.DaoException;
import com.ewuxi.champion.persistence.vo.Category;
import com.ibatis.db.sqlmap.SqlMap;

/**
* @author champion
*
*category数据库操作对象
*/

public class CategoryDb {

/**
* @param vo
* @throws DaoException
* 插入一条记录
*/
public void insert(Category vo) throws DaoException{
try {
SqlMap sqlMap=DaoCommon.getSqlMap(DaoCommon.getDefautDao());
sqlMap.executeUpdate("insertCategoryDao",vo);
} catch (Exception e) {
throw new DaoException(e);
}
}
/**
* @param vo
* @throws DaoException
* 删除一条记录
*/
public void delete(Category vo) throws DaoException{
try {
SqlMap sqlMap=DaoCommon.getSqlMap(DaoCommon.getDefautDao());
sqlMap.executeUpdate("deleteByPrimaryKeyCategoryDao",vo);
} catch (Exception e) {
throw new DaoException(e);
}
}
/**
* @param vo
* @throws DaoException
* 修改一条记录
*/
public void update(Category vo) throws DaoException{
try {
SqlMap sqlMap=DaoCommon.getSqlMap(DaoCommon.getDefautDao());
sqlMap.executeUpdate("updateByPrimaryKeyCategoryDao",vo);
} catch (Exception e) {
throw new DaoException(e);
}
}
/**
* @param vo
* @return
* @throws DaoException
* 查找一条记录
*/
public Category findByPk(Category vo) throws DaoException{
try {
SqlMap sqlMap=DaoCommon.getSqlMap(DaoCommon.getDefautDao());
return (Category) sqlMap.executeQueryForObject("findByPrimaryKeyCategoryDao",vo);
} catch (Exception e) {
throw new DaoException(e);
}
}

}