content: package com.ruoyi.framework.security.filter;
  
  import java.io.IOException;
  import javax.servlet.FilterChain;
  import javax.servlet.ServletException;
  import javax.servlet.http.HttpServletRequest;
  import javax.servlet.http.HttpServletResponse;
  import org.springframework.beans.factory.annotation.Autowired;
  import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
  import org.springframework.security.core.context.SecurityContextHolder;
  import org.springframework.security.web.authentication.WebAuthenticationDetailsSource;
  import org.springframework.stereotype.Component;
  import org.springframework.web.filter.OncePerRequestFilter;
  import com.ruoyi.common.core.domain.model.LoginUser;
  import com.ruoyi.common.utils.SecurityUtils;
  import com.ruoyi.common.utils.StringUtils;
  import com.ruoyi.framework.web.service.TokenService;
  
  /**
   * token过滤器 验证token有效性
   * 
   * @author ruoyi
   */
  @Component
  public class JwtAuthenticationTokenFilter extends OncePerRequestFilter
  {
      @Autowired
      private TokenService tokenService;
  
      @Override
      protected void doFilterInternal(HttpServletRequest request, HttpServletResponse response, FilterChain chain)
              throws ServletException, IOException
      {
          LoginUser loginUser = tokenService.getLoginUser(request);
          if (StringUtils.isNotNull(loginUser) && StringUtils.isNull(SecurityUtils.getAuthentication()))
          {
              tokenService.verifyToken(loginUser);
              UsernamePasswordAuthenticationToken authenticationToken = new UsernamePasswordAuthenticationToken(loginUser, null, loginUser.getAuthorities());
              authenticationToken.setDetails(new WebAuthenticationDetailsSource().buildDetails(request));
              SecurityContextHolder.getContext().setAuthentication(authenticationToken);
          }
          chain.doFilter(request, response);
      }
  }
  