springboot过滤器配置

springboot过滤器配置

/**
 * 基本信息过滤器
 *
 * @author jWX562483
 */
@EnableConfigurationProperties(DebugProperties.class)
@WebFilter(filterName = "InstanceFilter", urlPatterns = "/*")    //配置过滤器名称和拦截的路径
@Component
public class InstanceFilter extends OncePerRequestFilter {  //过滤器需要继承接口OncePerRequestFilter

    private static final Logger logger = LogManager.getLogger(InstanceFilter.class);

    @Autowired
    private DebugProperties debugProperties;

    @Override
    protected void doFilterInternal(HttpServletRequest request, HttpServletResponse response, FilterChain filterChain)    //继承这个方法  //请求发出后，会匹配过滤器拦截路径，如果匹配成功，则调用这个方法
            throws ServletException, IOException {
        if (debugProperties.isDebug()) {
            HttpInfoUtils.setLanguage(debugProperties.getLanguage());
            HttpInfoUtils.setProjectCode(debugProperties.getProjectCode());
            HttpInfoUtils.setUser(JSON.parseObject(debugProperties.getUserInfo(), User.class));
        } else {
            try {
                HttpInfoUtils.parseAndSetLanguage();
            } catch (Exception e) {
                logger.info(e.getMessage());
            }

            try {
                HttpInfoUtils.parseAndSetProjectCode();
            } catch (Exception e) {
                logger.info(e.getMessage());
            }

            try {
                HttpInfoUtils.parseAndSetUserInfo();
            } catch (Exception e) {
                logger.info(e.getMessage());
            }
        }

        filterChain.doFilter(request, response);  //放行
    }
}