fixed: contains unreadable message on job column when download users as .xlsx (#372)

Co-authored-by: Wentao chang <wentao.chang@activenetwork.com>

eladmin-system/src/main/java/me/zhengjie/modules/system/service/impl/UserServiceImpl.java

@@ -196,7 +196,7 @@ public class UserServiceImpl implements UserService {
             map.put("用户名", userDTO.getUsername());
             map.put("角色", roles);
             map.put("部门", userDTO.getDept().getName());
-            map.put("岗位", userDTO.getJobs().stream().map(JobSmallDto::getName).toString());
+            map.put("岗位", userDTO.getJobs().stream().map(JobSmallDto::getName).collect(Collectors.toList()));
             map.put("邮箱", userDTO.getEmail());
             map.put("状态", userDTO.getEnabled() ? "启用" : "禁用");
             map.put("手机号码", userDTO.getPhone());