30 lines
1.4 KiB
XML
30 lines
1.4 KiB
XML
<?xml version="1.0" encoding="UTF-8" ?>
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<!DOCTYPE mapper
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PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
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"http://mybatis.org/dtd/mybatis-3-mapper.dtd">
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<mapper namespace="cn.wzpmc.dao.ChatDao">
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<insert id="sendMessage" parameterType="cn.wzpmc.pojo.Message" useGeneratedKeys="true" keyProperty="id">
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insert into message
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set content=#{content},
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sender=#{sender},
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type=#{type},
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sendtime=#{sendtime};
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</insert>
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<update id="recall" parameterType="cn.wzpmc.pojo.Message">
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update message
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set recall=1
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where id = #{id};
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</update>
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<select id="getMessage" resultType="cn.wzpmc.pojo.Message">
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select m.*,u.base64 from message m inner join user u on u.username = m.sender where m.id >= #{id_min} and m.recall = 0 order by m.id desc limit #{count};
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</select>
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<select id="getUserHeadPortrait" resultType="java.lang.String">
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select `base64` from user where BINARY `username`=#{username};
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</select>
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<select id="getCount" resultType="java.lang.Integer">
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select COUNT(*) from message;
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</select>
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<select id="getNewMessage" resultType="cn.wzpmc.pojo.Message">
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select m.*,u.base64 from message m inner join user u on u.username = m.sender where m.id >= #{id_min} and m.id <= #{id_max} and m.recall = 0 order by m.id desc limit #{count};
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</select>
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</mapper> |