springboot 过滤器和拦截器配置

Posted 2023-02-10 十一路客

1.过滤器

(1)ApplicationFilterConfig.java

@Component
public class ApplicationFilterConfig 
	    @Bean
	    public FilterRegistrationBean filterRegistrationBean()
	        FilterRegistrationBean registrationBean = new FilterRegistrationBean();
	        TestFilter sessionFilter = new TestFilter();
	        registrationBean.setFilter(sessionFilter);
	        List<String> urlPatterns = new ArrayList<String>();
	        urlPatterns.add("/*");
	        registrationBean.setUrlPatterns(urlPatterns);
	        return registrationBean;
	    

(2)TestFilter.java

public class TestFilter implements Filter 
	private static final Logger logger = LoggerFactory.getLogger(TestFilter.class);
	@Override
	public void init(FilterConfig filterConfig) throws ServletException 
		// TODO Auto-generated method stub		
	
	@Override
	public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain chain)
			throws IOException, ServletException 
		 // TODO Auto-generated method stub
		  HttpServletRequest request = (HttpServletRequest) servletRequest;
	      HttpServletResponse response = (HttpServletResponse) servletResponse;
	      String uri = request.getRequestURI();
	      logger.info("TestFilter uri: " + uri);      
	      chain.doFilter(servletRequest, servletResponse);
	

	@Override
	public void destroy() 
		// TODO Auto-generated method stub
		
	

2.拦截器

(1)WebMvcInterceptorKeeper.java

@Component
public class WebMvcInterceptorKeeper extends WebMvcConfigurerAdapter   
	@Override
	public void addInterceptors(InterceptorRegistry registry) 
		registry.addInterceptor(new AuthorityInterceptor());
		
	
	

(2) AuthorityInterceptor.java

public class AuthorityInterceptor implements HandlerInterceptor 
	private static final Logger logger = LoggerFactory
			.getLogger(AuthorityInterceptor.class);
	
	private static final Set<String> noValidRoutes = Sets.newHashSet();
	static 
		//必须加/
		noValidRoutes.add("/");
		noValidRoutes.add("/index");
		noValidRoutes.add("/login");
		noValidRoutes.add("/checklogin");
	

	
	@Override
	public void afterCompletion(HttpServletRequest arg0,
			HttpServletResponse arg1, Object arg2, Exception arg3)
			throws Exception 
		// TODO Auto-generated method stub

	

	@Override
	public void postHandle(HttpServletRequest arg0, HttpServletResponse arg1,
			Object arg2, ModelAndView arg3) throws Exception 
		// TODO Auto-generated method stub
 
	

	@Override
	public boolean preHandle(HttpServletRequest request, HttpServletResponse response,
			Object handler) throws Exception 
		// TODO Auto-generated method stub
		
		HandlerMethod handlerMethod = (HandlerMethod) handler;
	    logger.info("AuthorityInterceptor:preHandle:methodName:" + handlerMethod.getMethod().getName());
	    logger.info(" parameterTypes : " + Arrays.toString(handlerMethod.getMethod().getParameterTypes()));
	        
		String uri = request.getRequestURI();
		logger.info("uri: " + uri);
		logger.info("uri start with /api: " + uri.startsWith("/api"));
		if(!noValidRoutes.contains(uri) && !uri.startsWith("/api"))//需要验证的路由
			UserInfo userInfo= (UserInfo)request.getSession().getAttribute(Constants.User);
		    logger.info("userInfo: " + userInfo);
			if(userInfo == null)
		    	response.sendRedirect("/index");
		    	return false;
		    
		
		   	
		return true;