项目是否存在 sql语句写入xml

jeeplus-module/jeeplus-test/src/main/java/com/jeeplus/test/cw/projectRecords/mapper/CwProjectRecordsMapper.java

@@ -40,14 +40,11 @@ public interface CwProjectRecordsMapper extends BaseMapper<CwProjectRecords> {
      */
     CwProjectRecordsDTO queryById(@Param("id") String id);
 
-    /**
-     * 查询报告id
-     * */
-    CwProjectRecordsDTO queryById1(@Param("id") String id);
+
 /**
  * 判断是 否是项目id
  */
-    @Select("Select project_id from cw_project_report where id = #{id}")
+
     String queryByIdNull(@Param(("id"))String id);
     /**
      * 根据项目id删除项目相关的所有被服务单位

jeeplus-module/jeeplus-test/src/main/java/com/jeeplus/test/cw/projectRecords/mapper/xml/CwProjectRecordsMapper.xml

@@ -442,4 +442,8 @@
             #{id}
         </foreach>
     </select>
+    <select id="queryByIdNull" resultType="java.lang.String">
+       Select project_id from cw_project_report where id = #{id}
+    </select>
+
 </mapper>