参加项目人数为空判断

donate-service/src/main/java/com/uas/service/donate/impl/ProjectRecordServiceImpl.java

@@ -1,6 +1,5 @@
 package com.uas.service.donate.impl;
 
-import com.uas.service.donate.dao.ProjectDao;
 import com.uas.service.donate.dao.ProjectRecodeDao;
 import com.uas.service.donate.model.Project;
 import com.uas.service.donate.model.ProjectRecode;
@@ -44,7 +43,10 @@ public class ProjectRecordServiceImpl implements ProjectRecodeService {
         //重新设置该项目已筹集金额
         project.setTotalAmount(totalAmount);
         //得到该项目的参与人数
-        Long joinAmount=project.getJoinAmount();
+        Long joinAmount = project.getJoinAmount();
+        if (joinAmount == null) {
+            joinAmount = (long)0;
+        }
         joinAmount++;
         //重新设置该项目的参与人数
         project.setJoinAmount(joinAmount);