**
 * Security 要求需要實現(xiàn)的User類
 * */
@Data
public class SecurityUser implements UserDetails {
 @Autowired
 private SysRoleService sysRoleService;
 //用戶登錄名(注意此處的username和SysUser的loginName是一個值)
 private String username;
 //登錄密碼
 private String password;
 //用戶id
 private SysUser sysUser;
 //該用戶的所有權(quán)限
 private List<SysMenu> sysMenuList;
 /**構(gòu)造函數(shù)*/
 public SecurityUser(SysUser sysUser){
  this.username = sysUser.getLoginName();
  this.password = sysUser.getPassword();
  this.sysUser = sysUser;
 }
 public SecurityUser(SysUser sysUser,List<SysMenu> sysMenuList){
  this.username = sysUser.getLoginName();
  this.password = sysUser.getPassword();
  this.sysMenuList = sysMenuList;
  this.sysUser = sysUser;
 }
 /**需要實現(xiàn)的方法*/
 @Override
 public Collection<? extends GrantedAuthority> getAuthorities() {
  List<GrantedAuthority> authorities = new ArrayList<>();
  for(SysMenu menu : sysMenuList) {
   authorities.add(new SimpleGrantedAuthority(menu.getPerms()));
  }
  return authorities;
 }
 @Override
 public String getPassword() {
  return this.password;
 }
 @Override
 public String getUsername() {
  return this.username;
 }
 //默認賬戶未過期
 @Override
 public boolean isAccountNonExpired() {
  return true;
 }
 //默認賬戶沒有帶鎖
 @Override
 public boolean isAccountNonLocked() {
  return true;
 }
 //默認憑證沒有過期
 @Override
 public boolean isCredentialsNonExpired() {
  return true;
 }
 //默認賬戶可用
 @Override
 public boolean isEnabled() {
  return true;
 }
}

/**
 * Security 要求需要實現(xiàn)的UserService類
 * */
@Service
public class SecurityUserService implements UserDetailsService{

 @Autowired
 private SysUserService sysUserService;
 @Autowired
 private SysMenuService sysMenuService;
 @Autowired
 private HttpServletRequest httpServletRequest;

 @Override
 public SecurityUser loadUserByUsername(String loginName) throws UsernameNotFoundException {
  LambdaQueryWrapper<SysUser> condition = Wrappers.<SysUser>lambdaQuery().eq(SysUser::getLoginName, loginName);
  SysUser sysUser = sysUserService.getOne(condition);
  if (Objects.isNull(sysUser)){
   throw new UsernameNotFoundException("未找到該用戶!");
  }
  Long projectId = null;
  try{
   projectId = Long.parseLong(httpServletRequest.getHeader("projectId"));
  }catch (Exception e){

  }
  SysMenuModel sysMenuModel;
  if (sysUser.getUserType()){
   sysMenuModel = new SysMenuModel();
  }else {
   sysMenuModel = new SysMenuModel().setUserId(sysUser.getId());
  }
  sysMenuModel.setProjectId(projectId);
  List<SysMenu> menuList = sysMenuService.getList(sysMenuModel);
  return new SecurityUser(sysUser,menuList);
 }
}

@Component
public class SecurityAuthenticationEntryPoint implements AuthenticationEntryPoint, Serializable {

 private static final long serialVersionUID = 1L;

 @Override
 public void commence(HttpServletRequest request, HttpServletResponse response,
       AuthenticationException authException) throws IOException, ServletException {
  response.sendError(HttpServletResponse.SC_UNAUTHORIZED,"token失效，請登陸后重試");
 }
}

@Configuration
@EnableWebSecurity
@EnableGlobalMethodSecurity(prePostEnabled = true)
public class SecurityConfig extends WebSecurityConfigurerAdapter{

 @Autowired
 SecurityAuthenticationEntryPoint securityAuthenticationEntryPoint;
 @Autowired
 SecurityFilter securityFilter;

 @Override
 protected void configure(HttpSecurity http) throws Exception {
  http
    //禁止csrf
    .csrf().disable()
    //異常處理
    .exceptionHandling().authenticationEntryPoint(securityAuthenticationEntryPoint).and()
    //Session管理方式
    .sessionManagement().sessionCreationPolicy(SessionCreationPolicy.STATELESS).and()
    //開啟認證
    .authorizeRequests()
    .antMatchers("/login/login").permitAll()
    .antMatchers("/login/register").permitAll()
    .antMatchers("/login/logout").permitAll()
    .anyRequest().authenticated();
  http
    .addFilterBefore(securityFilter, UsernamePasswordAuthenticationFilter.class);
 }
}

@Slf4j
@Component
public class SecurityFilter extends OncePerRequestFilter {

 @Autowired
 SecurityUserService securityUserService;
 @Autowired
 SysUserService sysUserService;
 @Autowired
 SysUserTokenService sysUserTokenService;

 /**
  * 認證授權(quán)
  * */
 @Override
 protected void doFilterInternal(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse,
         FilterChain filterChain) throws ServletException, IOException {
  log.info("訪問的鏈接是:{}",httpServletRequest.getRequestURL());
  try {
   final String token = httpServletRequest.getHeader("token");
   LambdaQueryWrapper<SysUserToken> condition = Wrappers.<SysUserToken>lambdaQuery().eq(SysUserToken::getToken, token);
   SysUserToken sysUserToken = sysUserTokenService.getOne(condition);
   if (Objects.nonNull(sysUserToken)){
    SysUser sysUser = sysUserService.getById(sysUserToken.getUserId());
    if (Objects.nonNull(sysUser)){
     SecurityUser securityUser = securityUserService.loadUserByUsername(sysUser.getLoginName());
     //將主體放入內(nèi)存
     UsernamePasswordAuthenticationToken authentication =
       new UsernamePasswordAuthenticationToken(securityUser, null, securityUser.getAuthorities());
     authentication.setDetails(new WebAuthenticationDetailsSource().buildDetails(httpServletRequest));
     //放入內(nèi)存中去
     SecurityContextHolder.getContext().setAuthentication(authentication);
    }
   }
  }catch (Exception e){
   log.error("認證授權(quán)時出錯:{}", Arrays.toString(e.getStackTrace()));
  }
  filterChain.doFilter(httpServletRequest, httpServletResponse);
 }
}

/**
 * 獲取Security主體工具類
 * @author pjjlt
 * */
public class SecurityUserUtil {
 public static SysUser getCurrentUser(){
  SecurityUser securityUser = (SecurityUser) SecurityContextHolder.getContext().getAuthentication().getPrincipal();
  if (Objects.nonNull(securityUser) && Objects.nonNull(securityUser.getSysUser())){
   return securityUser.getSysUser();
  }
  return null;
 }
}

 /**
  * 登錄，返回登錄信息，前端需要緩存
  * */
 @Override
 @Transactional(rollbackFor = Exception.class)
 public JSONObject login(SysUserModel sysUserModel) throws Exception{
  JSONObject result = new JSONObject();
  //1. 驗證賬號是否存在、密碼是否正確、賬號是否停用
  Wrapper<SysUser> sysUserWrapper = Wrappers.<SysUser>lambdaQuery()
    .eq(SysUser::getLoginName,sysUserModel.getLoginName()).or()
    .eq(SysUser::getEmail,sysUserModel.getEmail());
  SysUser sysUser = baseMapper.selectOne(sysUserWrapper);
  if (Objects.isNull(sysUser)){
   throw new Exception("用戶不存在!");
  }
  String password = CipherUtil.encryptByAES(sysUserModel.getPassword());
  if (!password.equals(sysUser.getPassword())){
   throw new Exception("密碼不正確!");
  }
  if (sysUser.getStatus()){
   throw new Exception("賬號已刪除或已停用!");
  }
  // 2.更新最后登錄時間
  sysUser.setLoginIp(ServletUtil.getClientIP(request));
  sysUser.setLoginDate(LocalDateTime.now());
  baseMapper.updateById(sysUser);
  // 3.封裝token，返回信息
  String token = UUID.fastUUID().toString().replace("-","");
  LocalDateTime expireTime = LocalDateTime.now().plusSeconds(expireTimeSeconds);
  SysUserToken sysUserToken = new SysUserToken()
    .setToken(token).setUserId(sysUser.getId()).setExpireTime(expireTime);
  sysUserTokenService.save(sysUserToken);
  result.putOpt("token",token);
  result.putOpt("expireTime",expireTime);
  return result;
 }

 /**
  * 登出，刪除token
  * */
 @Override
 public void logout() throws Exception{
  String token = httpServletRequest.getHeader("token");
  if (Objects.isNull(token)){
   throw new LoginException("token不存在",ResultEnum.LOGOUT_ERROR);
  }
  LambdaQueryWrapper<SysUserToken> sysUserWrapper = Wrappers.<SysUserToken>lambdaQuery()
    .eq(SysUserToken::getToken,token);
  baseMapper.delete(sysUserWrapper);
 }

@PreAuthorize("hasAnyAuthority('test')")
@GetMapping("test")
public String test(){
 return "test";
}