springboot 拦截器过滤token，并且返回结果

桃扇骨 2022-05-24 10:40 193阅读 0赞

springboot 拦截器处理过滤token，并且返回结果

public class ParamInterceptor implements HandlerInterceptor {
    
    
    
        private Logger LOG = Logger.getLogger(ParamInterceptor.class);
    
        @Override
        public boolean preHandle(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, Object o) throws Exception {
    
            String token = httpServletRequest.getHeader("token");
            //LOG.info(token)
           
            if(!"aOXnjYZyn==".equals(token)){
                PrintWriter writer = null;
                httpServletResponse.setCharacterEncoding("UTF-8");
                httpServletResponse.setContentType("text/html; charset=utf-8");
                try {
                    writer = httpServletResponse.getWriter();
                    String error = "token信息有误";
                    writer.print(error);
                    return false;
    
                } catch (IOException e) {
                    LOG.error("response error",e);
                } finally {
                    if (writer != null)
                        writer.close();
                }
            }
            return true;
        }
    
        @Override
        public void postHandle(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, Object o, ModelAndView modelAndView) throws Exception {
    
    
        }
    
        @Override
        public void afterCompletion(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, Object o, Exception e) throws Exception {
    
        }
    }

添加拦截器配置

/***
    * @Desciption: 拦截器
    * @Date: 13:53 2018/1/15
    * @return 
    */
    @Configuration
    public class InterceptorConfig extends WebMvcConfigurerAdapter {
    
        public void addInterceptors(InterceptorRegistry registry) {
            registry.addInterceptor(new ParamInterceptor()).addPathPatterns("/**");
        }
    }

源码：[https://github.com/gcWpengfei/spring-cloud-rsa-aes-demo][https_github.com_gcWpengfei_spring-cloud-rsa-aes-demo]

[https_github.com_gcWpengfei_spring-cloud-rsa-aes-demo]: https://github.com/gcWpengfei/spring-cloud-rsa-aes-demo