crud
查询select
<!--列表查询-->
<select id="selectLoanInfoList" parameterType="com.zyamc.debt.domain.LoanInfo" resultMap="LoanInfoResult">
select id, loaner_id, loanee_id, contract_number
from tbl_loan_info
<where>
<if test="loanerId != null "> and loaner_id = #{loanerId} </if>
<if test="loaneeId != null "> and loanee_id = #{loaneeId} </if>
<if test="contractNumber != null and contractNumber != ''"> and contract_number like concat('%', #{contractNumber}, '%') </if>
</where>
order by `status` desc, expire_date asc
</select>
<!--遍历idList查询-->
<select id="selectLoanInfoByIds" parameterType="Long" resultMap="LoanInfoResult">
<include refid="selectLoanInfoVo"/>
<where>
<if test="ids != null and ids.size() != 0">
id in
<foreach collection="ids" item="id" open="(" separator="," close=")">
#{id}
</foreach>
</if>
</where>
</select>
<!--通过id查询-->
<select id="selectLoanInfoById" parameterType="Long" resultMap="LoanInfoResult" flushCache="true">
<include refid="selectLoanInfoVo"/>
where id = #{id}
</select>
新增insert
<!--条件新增-->
<insert id="insertLoanInfo" parameterType="com.zyamc.debt.domain.LoanInfo" useGeneratedKeys="true"
keyProperty="id">
insert into tbl_loan_info
<trim prefix="(" suffix=")" suffixOverrides=",">
<if test="loanerId != null">loaner_id, </if>
<if test="loaneeId != null">loanee_id, </if>
<if test="contractNumber != null and contractNumber != ''"> contract_number, </if>
</trim>
<trim prefix="values (" suffix=")" suffixOverrides=",">
<if test="loanerId != null"> #{loanerId}, </if>
<if test="loaneeId != null"> #{loaneeId}, </if>
<if test="contractNumber != null and contractNumber != ''"> #{contractNumber}, </if>
</trim>
</insert>
修改update
<!--条件修改-->
<update id="updateLoanInfo" parameterType="com.zyamc.debt.domain.LoanInfo">
update tbl_loan_info
<trim prefix="SET" suffixOverrides=",">
<if test="loanerId != null"> loaner_id = #{loanerId}, </if>
<if test="loaneeId != null"> loanee_id = #{loaneeId}, </if>
<if test="contractNumber != null and contractNumber != ''"> contract_number = #{contractNumber}, </if>
</trim>
where id = #{id}
</update>
删除delete
<!--根据id删除-->
<delete id="deleteLoanInfoById" parameterType="Long">
delete
from tbl_loan_info where id = #{id}
</delete>
<!--根据ids（逗号隔开的字符串）删除-->
<delete id="deleteLoanInfoByIds" parameterType="String">
delete from tbl_loan_info where id in
<foreach item="id" collection="array" open="(" separator="," close=")">
#{id}
</foreach>
</delete>
全文件
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper
PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
"http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="com.zyamc.debt.mapper.LoanInfoMapper">
<resultMap type="com.zyamc.debt.domain.LoanInfo" id="LoanInfoResult">
<result property="id" column="id"/>
<result property="loanerId" column="loaner_id"/>
<result property="loaneeId" column="loanee_id"/>
<result property="contractNumber" column="contract_number"/>
</resultMap>
<sql id="selectLoanInfoVo">
select id, loaner_id, loanee_id, contract_number
from tbl_loan_info
</sql>
<!--列表查询-->
<select id="selectLoanInfoList" parameterType="com.zyamc.debt.domain.LoanInfo" resultMap="LoanInfoResult">
select id, loaner_id, loanee_id, contract_number
from tbl_loan_info
<where>
<if test="loanerId != null "> and loaner_id = #{loanerId} </if>
<if test="loaneeId != null "> and loanee_id = #{loaneeId} </if>
<if test="contractNumber != null and contractNumber != ''"> and contract_number like concat('%', #{contractNumber}, '%') </if>
</where>
order by `status` desc, expire_date asc
</select>
<!--遍历idList查询-->
<select id="selectLoanInfoByIds" parameterType="Long" resultMap="LoanInfoResult">
<include refid="selectLoanInfoVo"/>
<where>
<if test="ids != null and ids.size() != 0">
id in
<foreach collection="ids" item="id" open="(" separator="," close=")">
#{id}
</foreach>
</if>
</where>
</select>
<!--通过id查询-->
<select id="selectLoanInfoById" parameterType="Long" resultMap="LoanInfoResult" flushCache="true">
<include refid="selectLoanInfoVo"/>
where id = #{id}
</select>
<!--条件新增-->
<insert id="insertLoanInfo" parameterType="com.zyamc.debt.domain.LoanInfo" useGeneratedKeys="true"
keyProperty="id">
insert into tbl_loan_info
<trim prefix="(" suffix=")" suffixOverrides=",">
<if test="loanerId != null">loaner_id, </if>
<if test="loaneeId != null">loanee_id, </if>
<if test="contractNumber != null and contractNumber != ''"> contract_number, </if>
</trim>
<trim prefix="values (" suffix=")" suffixOverrides=",">
<if test="loanerId != null"> #{loanerId}, </if>
<if test="loaneeId != null"> #{loaneeId}, </if>
<if test="contractNumber != null and contractNumber != ''"> #{contractNumber}, </if>
</trim>
</insert>
<!--条件修改-->
<update id="updateLoanInfo" parameterType="com.zyamc.debt.domain.LoanInfo">
update tbl_loan_info
<trim prefix="SET" suffixOverrides=",">
<if test="loanerId != null"> loaner_id = #{loanerId}, </if>
<if test="loaneeId != null"> loanee_id = #{loaneeId}, </if>
<if test="contractNumber != null and contractNumber != ''"> contract_number = #{contractNumber}, </if>
</trim>
where id = #{id}
</update>
<!--根据id删除-->
<delete id="deleteLoanInfoById" parameterType="Long">
delete
from tbl_loan_info where id = #{id}
</delete>
<!--根据ids（逗号隔开的字符串）删除-->
<delete id="deleteLoanInfoByIds" parameterType="String">
delete from tbl_loan_info where id in
<foreach item="id" collection="array" open="(" separator="," close=")">
#{id}
</foreach>
</delete>
</mapper>
时间条件过滤举例
方式一：
<if test="startDate != null"> and lend_date <![CDATA[>=]]> #{startDate}</if>
<if test="endDate != null"> and lend_date <![CDATA[<=]]> #{endDate}</if>
方式二：
<if test="params.beginTime != null and params.beginTime != ''"><!-- 开始时间检索 -->
and date_format(create_time,'%y%m%d') >= date_format(#{params.beginTime},'%y%m%d')
</if>
<if test="params.endTime != null and params.endTime != ''"><!-- 结束时间检索 -->
and date_format(create_time,'%y%m%d') <= date_format(#{params.endTime},'%y%m%d')
</if>