--no commit message

app/resource/src/main/java/com/zrqx/resource/bg/controller/projectlibrary/ProjectLibraryController.java

@@ -399,8 +399,10 @@ public class ProjectLibraryController {
 			QrCode qr = new QrCode();
 			qr.setResourceId(li.getResourceId());
 			qr.setResourceType(li.getResourceType());
-			qr = qrCodeService.selectOne(qr);
-			li.setQrCode(qr.getQrCode());
+			qr = qrCodeService.selectOne(qr);	
+			if(qr != null) {
+				li.setQrCode(qr.getQrCode());
+			}	
 			if(StringUtils.isNotEmpty(ebook.getPdfFile())){
 				li.setIsPdf(1);
 				// 查询pdf地址