public class UserDetailServiceImpl implements UserDetailsService { // 使用xml注入 private SellerService sellerService; public void setSellerService(SellerService sellerService) { this.sellerService = sellerService; } @Override public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException { if (username == null || "".equals(username)) { return null; } Seller seller = sellerService.findByName(username); if(seller != null) { List<GrantedAuthority> grantedAuthorities = new ArrayList<>(); GrantedAuthority grantedAuthority = new SimpleGrantedAuthority("ROLE_SELLER"); grantedAuthorities.add(grantedAuthority); return new User(username,seller.getPassword(),grantedAuthorities); } return null; } }
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