传入string类型时,无法自动添加引号,导致SQL将值识别为列名,导致SQL失败
解决:使用map类型代替string的传值
如
Map<String, String> map = new HashMap<>(2); map.put("userName", userName); return userMapper.selectUserByName(map);
<select id="selectUserByName" parameterType="map" resultType="userDO"> select user_id as userId, user_name as userName, user_password as userPassword, user_level as userLevel, user_gmt_create as userGmtCreate, user_gmt_modified as userGmtModified from user where user_name = #{userName} </select>