? <bean id="vendorProperties" class="org.springframework.beans.factory.config.PropertiesFactoryBean">
? ? <property name="properties">
? ? ? <props>
? ? ? ? <prop key="DB2">db2</prop>
? ? ? ? <prop key="Oracle">oracle</prop>
? ? ? ? <prop key="MySQL">mysql</prop>
? ? ? </props>
? ? </property>
? ?</bean>
? ?<bean id="databaseIdProvider" class="org.apache.ibatis.mapping.VendorDatabaseIdProvider">
? ? <property name="properties" ref="vendorProperties"/>
? </bean>

<!-- sessionFactory 將spring和mybatis整合 -->
?<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
?<property name="dataSource" ref="dataSource" />
?<property name="databaseIdProvider" ref="databaseIdProvider" />
?<property name="configLocation" value="classpath:mybatis-config.xml" />
?<property name="mapperLocations"
?value="classpath*:/com/sunyard/cop/IF/mybatis/mapping/*.xml" />?
?<property name="plugins">
? ? ?<array>
? ? ? ?<bean class="com.github.pagehelper.PageInterceptor">
? ? ? ? ?<property name="properties">
? ? ? ? ? ?<!--使用下面的方式配置參數(shù)，一行配置一個(gè)，后面會(huì)有所有的參數(shù)介紹 -->
? ? ? ? ? ?<value>
?　　　　　　　　helperDialect=oracle
?　　　　　　　　reasonable=true
?　　　　　　　　supportMethodsArguments=true
?　　　　　　　　params=count=countSql
?　　　　　　　　autoRuntimeDialect=true?
?　　　　　　</value>
? ? ? ? ?</property>
? ? ? ?</bean>
? ? ?</array>
? ? ? ? ?</property>
?</bean>

? ? <select id="selectByUserNo" databaseId="mysql" ? parameterType="java.lang.String" resultMap="UserResultMap">
?select * from SM_USERS_TB
? ? </select>
? ? <select id="selectByUserNo" ?parameterType="java.lang.String" resultMap="UserResultMap">
?select * from SM_USERS_TB
? ? </select>

<update id="upda" parameterType="User">
		update smbms_user
		<set>
                <!--修改時(shí)可以判斷userCode是否是空的如果不為空就把數(shù)據(jù)庫中這一列的值更改掉
                如果為空就不修改這一列數(shù)據(jù)庫這一列的值也不會(huì)為Null-->
			<if test="userCode!=null and userCode!=''">
				userCode=#{userCode},
			</if>
			<if test="userName!=null and userName!=''">
				userName=#{userName},
			</if>
			<if test="userPassword!=null and userPassword!=''">
				userPassword=#{userPassword},
			</if>
			<if test="gender!=null and gender!=''">
				gender=#{gender},
			</if>
			<if test="phone!=null and phone!=''">
				phone=#{phone},
			</if>
			<if test="address!=null and address!=''">
				address=#{address},
			</if>
			<if test="userRole!=null and userRole!=''">
				userRole=#{userRole},
			</if>
			<if test="createdBy!=null and createdBy!=''">
				createdBy=#{createdBy},
			</if>
		</set>
		where id=#{id}
	</update>

<update id ="modify" parameterType="User">
update smbms_user
<trim prefix="set" suffixOverrides="," suffix="where id = #{id}">	
	<if test="userCode != null">userCode = #{userCode},</if>
	<if test="userName!= null">userCode = #{userName },</if>
	<if test="userPassword!= null">userPassword=#{userPassword },</if>
</trim>
</update>
 

    
SELECT u.*,r.roleName,r.roleCode FROM smbms_user u INNER JOIN smbms_role r ON u.userrole=r.id 
    <where>
            <!-- where相當(dāng)于  select * from pet where id=1 中的where一樣  -->
			<if test="usercode !=null and usercode !=''">
				AND userCode LIKE CONCAT('%',#{usercode},'%')
			</if>
			<if test="userrole!=0">
				AND userRole=#{userrole}
			</if>
			<if test="gender!=null and gender!=0">
				AND gender=#{gender} 
			</if>
	</where>

<update id="upda" parameterType="User">
		update smbms_user
		<set><!-- 與修改時(shí)搭配使用我們修改set的sql語句的‘,'的最后一列會(huì)被自動(dòng)省略 -->
			<if test="userCode!=null and userCode!=''">
				userCode=#{userCode},
			</if>
			<if test="userName!=null and userName!=''">
				userName=#{userName},
			</if>
			<if test="userPassword!=null and userPassword!=''">
				userPassword=#{userPassword},
			</if>
			<if test="gender!=null and gender!=''">
				gender=#{gender},
			</if>
			<if test="phone!=null and phone!=''">
				phone=#{phone},
			</if>
			<if test="address!=null and address!=''">
				address=#{address},
			</if>
			<if test="userRole!=null and userRole!=''">
				userRole=#{userRole},
			</if>
			<if test="createdBy!=null and createdBy!=''">
				createdBy=#{createdBy},
			</if>
		</set>
		where id=#{id}
	</update>

<choose>
	<when test ="條件1"> …</when>
	<when test ="條件2"> …</when>
	<when test ="條件3"> …</when>
	…
	<otherwise>…</otherwise>
</choose>	

<select id="getUserName" resultType="User" parameterType="java.util.List">
		select * from smbms_user where userCode in
		<foreach collection="list" open="(" close=")" item="userCode" separator=",">
			#{userCode}
		</foreach>
	</select>