导出为纯数据excel时，保留Summary部分

src/main/java/com/uas/report/service/impl/PrintServiceImpl.java

@@ -464,7 +464,7 @@ public class PrintServiceImpl implements PrintService {
 		jasperDesign.setColumnFooter(null);
 		jasperDesign.setPageFooter(null);
 		jasperDesign.setLastPageFooter(null);
-		jasperDesign.setSummary(null);
+		// jasperDesign.setSummary(null);
 		jasperDesign.setNoData(null);
 		jasperDesign.setBackground(null);
 		// 忽略分页，以使列名只打印一次