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src/main/resources/mapper/TipContentMapper.xml

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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="lingtao.net.dao.TipContentMapper">
+    <select id="getTipContents" parameterType="lingtao.net.bean.TipContent"
+            resultType="lingtao.net.bean.TipContent">
+        SELECT
+        *
+        FROM
+        tbl_tip_content
+        <where>
+            <if test="content != null and content != ''">
+                title like '%${content}%' or content like '%${content}%'
+            </if>
+        </where>
+        order by id desc
+    </select>
+
+    <insert id="addTipContent" parameterType="lingtao.net.bean.TipContent">
+        insert into tbl_tip_content
+            (content, createBy, createDate, title,attachment,type)
+        values (#{content}, #{createBy}, now(), #{title}, #{attachment}, #{type})
+    </insert>
+
+    <update id="updateTipContentById" parameterType="lingtao.net.bean.TipContent">
+        update tbl_tip_content
+        <set>
+            <if test="content != null">
+                content = #{content,jdbcType=VARCHAR},
+            </if>
+            <if test="updateBy != null">
+                updateBy = #{updateBy,jdbcType=VARCHAR},
+            </if>
+            <if test="updateDate != null">
+                updateDate = now(),
+            </if>
+            <if test="title != null">
+                title = #{title,jdbcType=VARCHAR},
+            </if>
+            <if test="attachment != null">
+                attachment = #{attachment,jdbcType=VARCHAR},
+            </if>
+        </set>
+        where id = #{id,jdbcType=INTEGER}
+    </update>
+
+    <delete id="deleteTipContentById">
+        delete
+        from tbl_tip_content
+        where id = #{id}
+    </delete>
+</mapper>