content: package com.snow.common.security.utils;
  
  import javax.servlet.http.HttpServletRequest;
  import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
  import com.snow.common.core.constant.SecurityConstants;
  import com.snow.common.core.constant.TokenConstants;
  import com.snow.common.core.context.SecurityContextHolder;
  import com.snow.common.core.utils.ServletUtils;
  import com.snow.common.core.utils.StringUtils;
  import com.snow.system.api.model.LoginUser;
  
  /**
   * 权限获取工具类
   *
   * @author snow
   */
  public class SecurityUtils
  {
      /**
       * 获取用户ID
       */
      public static Long getUserId()
      {
          return SecurityContextHolder.getUserId();
      }
  
      /**
       * 获取用户名称
       */
      public static String getUsername()
      {
          return SecurityContextHolder.getUserName();
      }
  
      /**
       * 获取用户key
       */
      public static String getUserKey()
      {
          return SecurityContextHolder.getUserKey();
      }
  
      /**
       * 获取登录用户信息
       */
      public static LoginUser getLoginUser()
      {
          return SecurityContextHolder.get(SecurityConstants.LOGIN_USER, LoginUser.class);
      }
  
      /**
       * 获取请求token
       */
      public static String getToken()
      {
          return getToken(ServletUtils.getRequest());
      }
  
      /**
       * 根据request获取请求token
       */
      public static String getToken(HttpServletRequest request)
      {
          // 从header获取token标识
          String token = request.getHeader(TokenConstants.AUTHENTICATION);
          return replaceTokenPrefix(token);
      }
  
      /**
       * 裁剪token前缀
       */
      public static String replaceTokenPrefix(String token)
      {
          // 如果前端设置了令牌前缀，则裁剪掉前缀
          if (StringUtils.isNotEmpty(token) && token.startsWith(TokenConstants.PREFIX))
          {
              token = token.replaceFirst(TokenConstants.PREFIX, "");
          }
          return token;
      }
  
      /**
       * 是否为管理员
       *
       * @param userId 用户ID
       * @return 结果
       */
      public static boolean isAdmin(Long userId)
      {
          return userId != null && 1L == userId;
      }
  
      /**
       * 生成BCryptPasswordEncoder密码
       *
       * @param password 密码
       * @return 加密字符串
       */
      public static String encryptPassword(String password)
      {
          BCryptPasswordEncoder passwordEncoder = new BCryptPasswordEncoder();
          return passwordEncoder.encode(password);
      }
  
      /**
       * 判断密码是否相同
       *
       * @param rawPassword 真实密码
       * @param encodedPassword 加密后字符
       * @return 结果
       */
      public static boolean matchesPassword(String rawPassword, String encodedPassword)
      {
          BCryptPasswordEncoder passwordEncoder = new BCryptPasswordEncoder();
          return passwordEncoder.matches(rawPassword, encodedPassword);
      }
  }
  