修改登录方式为数据库+ldap之后，执行job发送邮件phantom一直需要登录

[BruceMiao305]

Please follow the below instructions to create a new system bug, otherwise, we can't help you effectively.(请严格遵循下列格式创建系统Bug主题，否则我们可能很难有效帮助到你)

• What steps will reproduce the problem?（该问题的重现步骤是什么？）
  我认证实现代码：
  public Authentication authenticate(Authentication authentication) throws AuthenticationException {
  String username = authentication.getName();
  String password = (String) authentication.getCredentials();
  UserDetails userDetails = userDetailsService.loadUserByUsername(username);
  /**
  * 通过Ldap方式进行验证
  */
  if(userDetails == null){
  throw new BadCredentialsException("用户名未找到");
  }
  if(userDetails.getUsername().equals("admin")){
  if (authentication instanceof ShareAuthenticationToken) {
  return authentication;
  } else {
  return authenticationProvider.authenticate(authentication);
  }
  }
  else {
  if (!ldapService.validUser(username, password)) {
  throw new BadCredentialsException("Ldap密码不正确");
  }
  Collection<? extends GrantedAuthority> authorities = userDetails.getAuthorities();
  return new UsernamePasswordAuthenticationToken(userDetails, password, authorities);
  }
  执行邮件任务，需要登录
  [INFO][11:33:26][PersistService.lambda$persist$0():69] elapsedTime:2001, [120000]
  [INFO][11:33:28][PersistService.lambda$persist$0():69] elapsedTime:4001, [120000]
  [INFO][11:33:30][PersistService.lambda$persist$0():69] elapsedTime:6001, [120000]

• What is the expected output? What do you see instead?（你期待的结果是什么？实际看到的又是什么？）

• What version of the product are you using? On what operating system?（你正在使用产品的哪个版本？在什么操作系统上？）
  windows开发环境，0.4.2

• Please provide any additional information below.（如果有的话，请在下面提供更多信息。）