fix

mallinkService/src/main/java/com/iformall/service/impl/WxFinanceServiceImpl.java

@@ -1019,7 +1019,12 @@ public class WxFinanceServiceImpl implements WxFinanceService {
 				}
 			}
 			
-			advance.setUseMoney(new BigDecimal(advance.getUseMoney()).add(new BigDecimal(setoffdetail.getSetoff())).toPlainString());
+			if (StringUtils.isBlank(advance.getUseMoney())) {
+				advance.setUseMoney(new BigDecimal(setoffdetail.getSetoff()).toPlainString());
+			}else {
+				advance.setUseMoney(new BigDecimal(advance.getUseMoney()).add(new BigDecimal(setoffdetail.getSetoff())).toPlainString());
+			}
+			
 			advance.setUpdatetime(new Date());
 			wxAllBillService.saveOrUpdate(advance, null);