Merge pull request #863 from dataease/pr@dev@fix_repeat_ldap_user

backend/src/main/java/io/dataease/auth/server/AuthServer.java

@@ -70,12 +70,16 @@ public class AuthServer implements AuthApi {
                 DataEaseException.throwException(validateResult.getMsg());
             }
             XpackLdapUserEntity ldapUserEntity = validateResult.getData();
+            SysUserEntity user = authUserService.getUserByName(username);
+            if(ObjectUtils.isEmpty(user) || ObjectUtils.isEmpty(user.getUserId())) {
                 LdapAddRequest ldapAddRequest = new LdapAddRequest();
                 ldapAddRequest.setUsers(new ArrayList<XpackLdapUserEntity>(){{add(ldapUserEntity);}});
                 ldapAddRequest.setEnabled(1L);
                 ldapAddRequest.setDeptId(1L);
                 ldapAddRequest.setRoleIds(new ArrayList<Long>(){{add(2L);}});
                 sysUserService.saveLdapUsers(ldapAddRequest);
+            }
+            
             username = validateResult.getData().getUserName();
         }
         // 增加ldap登录方式