mybatis.mapping.base.Base.xml Maven / Gradle / Ivy

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封装了mybatis的crud
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<?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="Base">

    <!--或者-->
    <sql id="or">
        ${key.condition} ${key.column}
        <choose>
            <when test="value.length == 1">
                =
                <foreach collection="value" item="item">
                    #{item}
                </foreach>
            </when>
            <when  test="value.length > 1">
                in
                <foreach collection="value" item="item" open="(" close=")" separator=",">
                    #{item}
                </foreach>
            </when>
        </choose>
    </sql>

    <sql id="query">
        <where>
            <if test="q.params != null">
                <foreach collection="q.params.entrySet()" item="value" index="key">
                    <choose>
                        <when test="key.condition == 'in'.toString()">
                            and ${key.column} ${key.condition}
                            <foreach collection="value" item="item" open="(" close=")" separator=",">
                                #{item}
                            </foreach>
                        </when>
                        <when test="key.condition == 'not in'.toString()">
                            and ${key.column} ${key.condition}
                            <foreach collection="value" item="item" open="(" close=")" separator=",">
                                #{item}
                            </foreach>
                        </when>
                        <when test="key.condition == 'or'.toString() ">
                            <include refid="Base.or" />
                        </when>
                        <otherwise>
                            and ${key.column} ${key.condition} #{value}
                        </otherwise>
                    </choose>
                </foreach>
            </if>
        </where>
    </sql>

    <sql id="sql">
        <include refid="Base.query" />
        <if test="q.groupBy != null">
            ${q.groupBy.key}
            <foreach collection="q.groupBy.groupBy" item="item" separator=",">
                ${item}
            </foreach>
        </if>
        <if test="q.orderBy != null">
            ${q.orderBy.key}
            <foreach collection="q.orderBy.orderBy" item="item" separator=",">
                ${item}
            </foreach>
        </if>
        <if test="q.page != null">
            <choose>
                <when test="q.page.index != null">
                    limit #{q.page.index},#{q.page.pageSize}
                </when>
                <otherwise>
                    limit #{q.page.pageSize}
                </otherwise>
            </choose>
        </if>
    </sql>

    <sql id="update">
        <include refid="Base.updateSet" />
        <include refid="Base.query" />
    </sql>

    <sql id="add">
        <foreach collection="q.fields" item="item" close=")" open="(" separator=",">
            ${item}
        </foreach> values
        <foreach collection="q.addValues" item="item" separator=",">
            <foreach collection="item.entrySet()" close=")" open="("  item="value" separator=",">
                #{value}
            </foreach>
        </foreach>
    </sql>

    <sql id="updateSet">
        <foreach collection="q.updateMap.entrySet()" item="value" index="key" separator=",">
            <choose>
                <when test="key.isPoundSign">
                    ${key.fieldName} = #{value}
                </when>
                <otherwise>
                    ${key.fieldName} = ${value}
                </otherwise>
            </choose>
        </foreach>
    </sql>

</mapper>