修改推荐岗位完成一下几点：

1.根据工作经验推荐相关的岗位4.0分
2.根据投递记录推荐相关的岗位3.0分
3.根据收藏记录推荐相关岗位2.0分

ruoyi-bussiness/src/main/resources/mapper/app/JobApplyMapper.xml

@@ -200,4 +200,10 @@
     <select id="selectByJobIdAndUserId" resultMap="JobApplyResult">
         select * from job_apply where del_flag='0' and job_id=#{jobId} and user_id=#{userId}
     </select>
+
+    <select id="queryApplyNames" resultType="java.lang.String">
+        select distinct j.job_title from job_apply ja inner join job j on ja.job_id=j.job_id
+                 where ja.del_flag='0' and j.del_flag='0' and ja.user_id=#{userId}
+                   and ja.create_time >= now() - interval '6' month
+    </select>
 </mapper>