修改项目评估查询总条数不准确问题,优化

src/main/java/org/rcisoft/business/evaluate/project/service/impl/ProjectEvaluateServiceImpl.java

@@ -34,13 +34,6 @@ public class ProjectEvaluateServiceImpl implements ProjectEvaluateService {
         Integer start = pageSize * (pageNum - 1);
         Integer end = pageSize * pageNum;
         List<Map<String, Object>> maps = projectEvaluateRepository.listProjectInformationByYear(year, start, end);
-        if (maps.size() > 0){
-            for (Map<String, Object> map : maps){
-                if((double)map.get("energyPotential") < 0){
-                    map.put("energyPotential", 0);
-                }
-            }
-        }
         return maps;
     }
 }

src/main/resources/mapper/sys/evaluate/mapper/ProjectEvaluateMapper.xml

@@ -2,27 +2,36 @@
 <!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
 <mapper namespace="org.rcisoft.business.evaluate.project.dao.ProjectEvaluateRepository">
 
+	<sql id="listProjectInformationByYearSql">
+		SELECT
+		PRO_NM,
+		BLD_LOCAL,
+		bbt.BLD_TP_NM,
+		bp.BLD_AREA,
+		SUM( WATER + ELEC + GAS ) / bp.BLD_AREA AS energy,
+		CASE WHEN SUM(WATER + ELEC + GAS) / bp.BLD_AREA - bp.ENERGY_POTENTIAL > 0
+		THEN SUM(WATER + ELEC + GAS) / bp.BLD_AREA - bp.ENERGY_POTENTIAL ELSE 0 END AS energyPotential,
+		ecm.YEAR
+		FROM
+		bus_project bp
+		LEFT JOIN energy_count_m ecm ON bp.PRO_ID = ecm.PRO_ID
+		LEFT JOIN bus_build_tp bbt ON bp.BLD_TP_ID = bbt.BLD_TP_ID
+		<where>
+			<if test="year != null and year != '' ">
+				ecm.YEAR = #{year}
+			</if>
+		</where>
+		GROUP BY
+		bp.PRO_ID,ecm.YEAR
+	</sql>
+
     <select id="listProjectInformationByYear" resultType="map">
-      SELECT
-	(select count(*) from bus_project) as total,
-	PRO_NM,
-	BLD_LOCAL,
-	bbt.BLD_TP_NM,
-	bp.BLD_AREA,
-	SUM( WATER + ELEC + GAS ) / bp.BLD_AREA AS energy,
-	SUM( WATER + ELEC + GAS ) / bp.BLD_AREA - bp.ENERGY_POTENTIAL AS energyPotential,
-	ecm.YEAR
-    FROM
-	bus_project bp
-	LEFT JOIN energy_count_m ecm ON bp.PRO_ID = ecm.PRO_ID
-	LEFT JOIN bus_build_tp bbt ON bp.BLD_TP_ID = bbt.BLD_TP_ID
-	<where>
-		<if test="year != null and year != '' ">
-			ecm.YEAR = #{year}
-		</if>
-	</where>
-    GROUP BY
-	bp.PRO_ID,ecm.YEAR
-	LIMIT #{start},#{end}
+		SELECT
+		(SELECT count(*) FROM ( <include refid="listProjectInformationByYearSql"/>) s) AS total,
+		t.*
+		FROM (
+		<include refid="listProjectInformationByYearSql"/>
+		) t
+		LIMIT #{start},#{end}
     </select>
 </mapper>
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