唯一限制条件只返回单条数据

2020-08-05 14:28:45 +08:00
parent 3b61ed56b0
commit 51fa66f61a
8 changed files with 12 additions and 12 deletions
--- a/ruoyi-system/src/main/resources/mapper/system/SysConfigMapper.xml
+++ b/ruoyi-system/src/main/resources/mapper/system/SysConfigMapper.xml
@ -61,7 +61,7 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
    
    <select id="checkConfigKeyUnique" parameterType="String" resultMap="SysConfigResult">
        <include refid="selectConfigVo"/>
-        where config_key = #{configKey}
+        where config_key = #{configKey} limit 1
    </select>
    
    <insert id="insertConfig" parameterType="SysConfig">