-----------------------------------
XML：
<insert id="addMerchantShopEmployee" parameterType="com.enterprise.domain.MerchantShopEmployee">
INSERT INTO b_merchant_shop_employee(user_name,merchant_id,is_admin,nick_name,emp_name,dept,email,telephone,mer_shop_ids,mer_user_id,user_id)
VALUES(#{userName},#{merchantId},#{isAdmin},#{nickName},#{empName},#{dept},#{email},#{telephone},#{merShopIds},#{merUserId},#{userId})
</insert>
<insert id="addHyipUserRole" parameterType="java.util.HashMap">
INSERT INTO hyip_user_role(username,user_role)VALUES(#{username},#{userRole})
</insert>
<delete id="deleteUserRole" parameterType="java.util.HashMap">
delete from b_merchat_user_role_rel where user_id = #{userId}
</delete>
<delete id="removeHyipUserRole" parameterType="java.lang.String">
delete FROMhyip_user_role
WHERE
user_role IN (
SELECT
priv_name
FROM
b_merchant_priviledge
)
AND username = #{username}
</delete>
<update id="modfifyEmployeeState" parameterType="java.util.HashMap">
update b_merchant_shop_employee set state=#{state} where user_id=#{userId}
</update>
<update id="modfifyEmployeeBasicInfo" parameterType="java.util.HashMap">
update b_merchant_shop_employee set email=#{email},emp_name=#{empName},
nick_name=#{nickName}, telephone=#{telephone} where user_id=#{userId}
</update>
<select id="qryMerchantShopEmployee" parameterType="java.util.HashMap" resultType="com.enterprise.domain.MerchantShopEmployee">
select * from b_merchant_shop_employee where 1=1
<if test="merchantUserId !=null and merchantUserId != ''">
and mer_user_id=#{merchantUserId}
</if>
limit #{perPage} offset #{offset}
</select>
<select id="getMerchanCompanyCertifiedFrom" resultType="MerchantCompanyCertified" parameterType="String">
SELECT
*
FROM
hyip_merchant_company_certified
WHERE create_time >= STR_TO_DATE(
#{from},
'%Y-%m-%d%k:%i:%s'
)
OR update_time >= STR_TO_DATE(
#{from},
'%Y-%m-%d%k:%i:%s'
)
</select>
--------------------------------------
JAVA
interface definition：
@MyBatisRepository
public interface MerchantCompanyCertifiedRepository {
void addMerchanCompanyCertified(MerchantCompanyCertified shopInfo);
void updateMerchanCompanyCertified(MerchantCompanyCertified shopInfo);
MerchantCompanyCertified getMerchanCompanyCertified(long userId);
List<MerchantCompanyCertified> getMerchanCompanyCertifiedFrom(String from);
}
传参数：
@Override
public void updateMerchanCompanyCertified(MerchantCompanyCertified shopInfo) {
merchantCompanyCertifiedRepository.updateMerchanCompanyCertified(shopInfo);
}
Map<String,Object> param = page.loadFilter();
param.put("companyName", companyName);
param.put("rowNum", page.loadIDisplayLength());
param.put("skipNum", page.loadIDisplayStart());
int count = merchantCompanyShopInfoService.getMerchantShopViewCount(param);
List<MerchantShopView> shopList = merchantCompanyShopInfoService.getMerchantShopViewList(param);
--------------------------------
分页
分页需要和前端开发沟通如何传参
后台必须返回前台：
1 总的记录数
2 根据当前页+pageSize 所查询出来的记录
java
List<MerchantShopEmployee> employeeList = merchantInfoService.qryMerchantShopEmployee(merUserId, perPage, currentPage);
int countSize = merchantInfoService.countEmployee(merUserId);
map.put("data", Collections.EMPTY_LIST);
map.put("totalCount", countSize);
return AjaxResult.success(map);
@Override
public List<MerchantShopEmployee> qryMerchantShopEmployee(Long merchantUserId, Integer perPage, Integer currentPage) {
Map<String, Object> condtion = new HashMap<String, Object>();
if (merchantUserId != null) {
condtion.put("merchantUserId", merchantUserId.toString());
}
condtion.put("perPage", perPage);
condtion.put("offset", (currentPage-1) * perPage);
List<MerchantShopEmployee> employeeList = merchantemployeeRepository.qryMerchantShopEmployee(condtion);
return employeeList;
}
mybatis XML:
<select id="qryMerchantShopEmployee" parameterType="java.util.HashMap" resultType="com.enterprise.domain.MerchantShopEmployee">
select * from b_merchant_shop_employee where 1=1
<if test="merchantUserId !=null and merchantUserId != ''">
and mer_user_id=#{merchantUserId}
</if>
limit #{perPage} offset #{offset}
</select>
<select id="countEmployee" resultType="int">
select count(*) from (
select * from b_merchant_shop_employee where 1=1
<if test="merchantUserId !=null and merchantUserId!=''">
and mer_user_id=#{merchantUserId}
</if>
) a
</select>
Count引入临时表的好处是查询临时表的sql只要能执行正确，count(*)就能正确执行，而查询临时表的sql通常在mybatis.xml中已经有了
------------------------------------------
一个错误
引用参数的时候忘记用#｛｝引起来
### SQL: INSERT INTO b_merchat_user_role_rel (user_id,role_id,username) VALUES(userId,roleId,userName)
### Cause: com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Unknown column 'userId' in 'field list'
<insert id="addUserRoleRelation" parameterType="com.enterprise.domain.MerchantUserRole">
INSERT INTO b_merchat_user_role_rel(user_id,role_id,username)
VALUES(userId,roleId,userName)
</insert>
改成下面的形式问题解决
<insert id="addUserRoleRelation" parameterType="com.enterprise.domain.MerchantUserRole">
INSERT INTO b_merchat_user_role_rel(user_id,role_id,username)
VALUES(#{userId},#{roleId},#{userName})
</insert>