diff --git a/jeecg-boot/jeecg-module-demo/src/main/java/org/jeecg/modules/demo/expproject/controller/ExpprojectController.java b/jeecg-boot/jeecg-module-demo/src/main/java/org/jeecg/modules/demo/expproject/controller/ExpprojectController.java
index 7ccdf64..b07adf5 100644
--- a/jeecg-boot/jeecg-module-demo/src/main/java/org/jeecg/modules/demo/expproject/controller/ExpprojectController.java
+++ b/jeecg-boot/jeecg-module-demo/src/main/java/org/jeecg/modules/demo/expproject/controller/ExpprojectController.java
@@ -2,7 +2,9 @@ package org.jeecg.modules.demo.expproject.controller;
 
 import java.io.UnsupportedEncodingException;
 import java.io.IOException;
+import java.math.BigInteger;
 import java.net.URLDecoder;
+import java.security.SecureRandom;
 import java.util.*;
 import java.util.stream.Collectors;
 
@@ -141,11 +143,16 @@ public class ExpprojectController {
 	public Result<String> add(@RequestBody ExpprojectPage expprojectPage) {
 		Expproject expproject = new Expproject();
 		BeanUtils.copyProperties(expprojectPage, expproject);
-		if (expproject.getNeedexp()>=expprojectPage.getExpandproList().size()) {
+		if (!expprojectPage.getExpandproList().isEmpty()) {
+			if (expproject.getNeedexp() >= expprojectPage.getExpandproList().size()) {
+				expprojectService.saveMain(expproject, expprojectPage.getExpandproList());
+				return Result.OK("添加成功！");
+			} else {
+				return Result.error("确定项目专家数量");
+			}
+		}else {
 			expprojectService.saveMain(expproject, expprojectPage.getExpandproList());
 			return Result.OK("添加成功！");
-		}else {
-			return Result.error("确定项目专家数量");
 		}
 	}
 
@@ -241,9 +248,10 @@ public class ExpprojectController {
 			List<String> usernamelist = expandproService.getusernamelist();
 			 Collections.shuffle(usernamelist);
 			 List<String> randomUsers = getRandomUsers(usernamelist, a);
-			 Expandpro expandpro =new Expandpro();
+
 			 List<Expert> expertList = expertService.query().in("seusername",randomUsers).list();
 			 for (int i=0;i<expertList.size();i++){
+				 Expandpro expandpro =new Expandpro();
 				 SysUser sysUser = sysUserService.query().eq("username",expertList.get(i).getSeusername()).one();
 				 expandpro.setExpid(expertList.get(i).getSeusername());
 				 expandpro.setExpprojectid(id);