List<String> selectAllAirportCode(Boolean mapping);

<select id="selectAllAirportCode" resultType="java.lang.String"
parameterType="java.lang.Boolean">
select DEPARTURE_AIRPORT from USR_AIR_LINE union select
ARRIVAL_AIRPORT from USR_AIR_LINE
<if test="_parameter == true">
union select REL_DEPARTURE_AIRPORT from USR_AIR_LINE union
select
REL_ARRIVAL_AIRPORT from USR_AIR_LINE
</if>
</select>

public List<Airline> findAll(PageInfo page,Airline airline) {
HashMap<String,Object> params = new HashMap<String,Object>();
params.put("page", page);
params.put("airline", airline);
return airlineMapper.findAll(params);
}

<sql id="sqlfileders">
<bind name="fileders"
value="#{'id':'ID','departureAirport':'DEPARTURE_AIRPORT','relDepartureAirport':'REL_DEPARTURE_AIRPORT','arrivalAirport':'ARRIVAL_AIRPORT','relArrivalAirport':'REL_ARRIVAL_AIRPORT','popStatus':'POP_STATUS','status':'STATUS','creator':'CREATOR','createTime':'CREATE_TIME'}" />
<bind name="javapropertys"
value="#{'ID':'id','DEPARTURE_AIRPORT':'departureAirport','REL_DEPARTURE_AIRPORT':'relDepartureAirport','ARRIVAL_AIRPORT':'arrivalAirport','REL_ARRIVAL_AIRPORT':'relArrivalAirport','POP_STATUS':'popStatus','STATUS':'status','CREATOR':'creator','CREATE_TIME':'createTime'}" />
</sql>
<select id="findAll" resultMap="BaseResultMap" parameterType="java.util.Map">
<![CDATA[
select x.* from (
select z.*, rownum numbers from (
]]>
select
<include refid="Base_Column_List" />
from
USR_AIR_LINE
<where>
<if test="airline.departureAirport != null">
DEPARTURE_AIRPORT = #{airline.departureAirport}
</if>
<if test="airline.arrivalAirport != null">
and ARRIVAL_AIRPORT=#{airline.arrivalAirport}
</if>
<if test="airline.relDepartureAirport != null">
and REL_DEPARTURE_AIRPORT =
#{airline.relDepartureAirport}
</if>
<if test="airline.relArrivalAirport != null">
and REL_ARRIVAL_AIRPORT = #{airline.relArrivalAirport}
</if>
<if test="airline.popStatus != null">
and POP_STATUS = #{airline.popStatus}
</if>
<if test="airline.status != null">
and STATUS = #{airline.status}
</if>
</where>
<if test="page.sortName != null">
<include refid="sqlfileders" />
<bind name="orderfield" value="#this.fileders[page.sortName]" />
order by ${orderfield} ${page.sortOrder}
</if>
<![CDATA[ ) z where rownum < ]]>
#{page.to}
<![CDATA[ ) x where x.numbers >= ]]>
#{page.from}
</select>

Airline selectEffectiveAirline(
@Param("departureAirport") String departureAirport,
@Param("arrivalAirport") String arrivalAirport,
@Param("status") BigDecimal status);

<select id="selectEffectiveAirline" resultMap="BaseResultMap" parameterType="java.util.Map">
select
<include refid="Base_Column_List" />
from
USR_AIR_LINE
<where>
<if test="departureAirport != null">
DEPARTURE_AIRPORT = #{departureAirport}
</if>
<if test="arrivalAirport != null">
and ARRIVAL_AIRPORT=#{arrivalAirport}
</if>
<if test="status != null">
and STATUS = #{status}
</if>
</where>
</select>

<select id="selectBlogByMap" parameterType="map" resultType="Blog"> 
select t.ID, t.title, t.content 
FROM blog t 
where t.title = #{h_title} 
and t.content =#{h_content} 
</select> 
public void testSelectByMap() { 
SqlSession session = sqlSessionFactory.openSession(); 
Map<String, Object> param=new HashMap<String, Object>(); 
param.put("h_title", "oracle"); 
param.put("h_content", "使用序列"); 
Blog blog = (Blog)session.selectOne("cn.enjoylife.BlogMapper.selectBlogByMap",param); 
session.close(); 
System.out.println("blog title:"+blog.getTitle()); 
} 

<select id="selectBlogByBean" parameterType="Blog" resultType="Blog">
select t.ID, t.title, t.content
from blog t
wheret.title = #{title}
and t.content =#{content} 
</select>
public void testSelectByBean() { 
SqlSession session = sqlSessionFactory.openSession(); 
Blog blog=new Blog(); 
blog.setTitle("oracle"); 
blog.setContent("使用序列！"); 
Blog newBlog = (Blog)session.selectOne("cn.enjoylife.BlogMapper.selectBlogByBean",blog); 
session.close(); 
System.out.println("new Blog ID:"+newBlog.getId()); 
}