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spring boot中interceptor攔截器未生效的解決

 更新時(shí)間：2021年09月17日 11:11:56   作者：sorrow_yc  
這篇文章主要介紹了spring boot中interceptor攔截器未生效的解決，具有很好的參考價(jià)值，希望對(duì)大家有所幫助。如有錯(cuò)誤或未考慮完全的地方，望不吝賜教

interceptor攔截器未生效

搭建項(xiàng)目時(shí)發(fā)現(xiàn)攔截器未生效

開始用的spring boot版本為1.5.6

代碼如下：

@Configuration
public class WebConfig extends WebMvcConfigurerAdapter{ 
 @Autowired
 private TimeInterceptor timeInterceptor; 
 @Override
 public void addInterceptors(InterceptorRegistry registry) {
  registry.addInterceptor(this.timeInterceptor);
  super.addInterceptors(registry);
 }
}

@Component
public class RequestParamInfoIntorceptor extends HandlerInterceptorAdapter { 
   private Logger logger = LoggerFactory.getLogger(RequestParamInfoIntorceptor.class); 
     @Override
     public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler)
             throws Exception {
         try {
             if (handler instanceof HandlerMethod) {
                 HandlerMethod handlerMethod = (HandlerMethod) handler;
                 String beanName = handlerMethod.getBean().getClass().toString();//類
                 String methodName = handlerMethod.getMethod().getName();//方法名稱
                 if(methodName.equals("error") || methodName.equals("success")) {
                     return super.preHandle(request, response, handler);
                 }
                 String uri = request.getRequestURI();//請(qǐng)求路徑
                 String remoteAddr = getIpAddr(request);//ip
                 String method = request.getMethod(); //請(qǐng)求方式
                 Map<String,String[]> pramMap = request.getParameterMap();
                 StringBuffer sbf = new StringBuffer();
                 int count = 0;
                 String forCunt = "";
                 for(Map.Entry<String, String[]> entry:pramMap.entrySet()){  
                     forCunt = "[" + count + "]" + " : " ;
                     sbf.append( "paramName" + forCunt + entry.getKey() + " - "+ "paramValue" + 
                             forCunt + request.getParameter(entry.getKey()) + "\n");
                     count ++;
                 } 
                 logger.info(" { beanName : " + beanName + " | " + "methodName : " + methodName + " | " + "uri : "
                         + uri + " | " + "remoteAddr : " + remoteAddr + " | " + "requestMethod : " +
                         method + "\n" + "param : " + sbf + "}");
             } 
         } catch (Exception e) {
             //出錯(cuò)
             logger.error(e.toString());
         }
         return super.preHandle(request, response, handler);
     } 
     //獲取客戶端IP
     private String getIpAddr(HttpServletRequest request) {
         String ip = request.getHeader("x-forwarded-for");
         if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
             ip = request.getHeader("Proxy-Client-IP");
         }
         if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
             ip = request.getHeader("WL-Proxy-Client-IP");
         }
         if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
             ip = request.getRemoteAddr();
         }
         return ip;
     } 
}

開始以為是版本問題，后升級(jí)為2.1.1，WebConfig改為實(shí)現(xiàn)WebMvcConfigurer，代碼如下

@Configuration
@Component
public class WebConfig implements WebMvcConfigurer{ 
 @Autowired
 private RequestParamInfoIntorceptor requestParamInfoIntorceptor;
 
 @Override
 public void addInterceptors(InterceptorRegistry registry) {
  registry.addInterceptor(this.requestParamInfoIntorceptor).addPathPatterns("/**");
 } 
}

驗(yàn)證后還是不行，繼續(xù)排查后發(fā)現(xiàn)，在添加版本控制時(shí)，有配置類繼承了WebMvcConfigurationSupport，查詢WebMvcConfigurationSupport源碼發(fā)現(xiàn)其中有攔截器注冊(cè)方法addInterceptors(InterceptorRegistry registry)，所以在版本控制配置類中重寫此方法添加攔截器，攔截器生效，問題解決。

解決方案

代碼如下：

@Configuration
public class ApiConfig extends WebMvcConfigurationSupport { 
 @Autowired
 private RequestParamInfoIntorceptor requestParamInfoIntorceptor;
 
 @Override
 protected void addInterceptors(InterceptorRegistry registry) {
  registry.addInterceptor(this.requestParamInfoIntorceptor).addPathPatterns("/**");
  super.addInterceptors(registry);
 } 
}

HandlerInterceptor實(shí)現(xiàn)登錄失效攔截等

首先寫一個(gè)實(shí)現(xiàn)HandlerInterceptor的類

代碼如下：

public class SessionInterceptor implements HandlerInterceptor {
    @Autowired
    RedisTemplate<String, String> redisTemplate;
    //private static String LOGIN_CODE = "/user/no_loginPage?Landingcode=" + UserResourcesHelper.LANDINGCODE_106;// 登錄地址及code信息
    //private static String LOGIN_CODE = "https://open.weixin.qq.com/connect/oauth2/authorize?appid=wxd11f95277f85e24b&redirect_uri=&response_type=code&scope=snsapi_userinfo&state=1234#wechat_redirect";
    protected List<String> patterns = new ArrayList<String>(Arrays.asList(".*?/.*/no_.*?", "/", "/error"));
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler)
            throws Exception {
        // 一些不需要過濾的方法
        String url = request.getRequestURI();
        if (isInclude(url) == true)
            return true;
        // 權(quán)限校驗(yàn)
        Cookie cookie = getCookieByName(request, UserResourcesHelper.COOKIE_TOKEN_NAME);
        String user = null;
        if (cookie != null && !cookie.getValue().equals("")) {
            user = redisTemplate.opsForValue().get(RedisKeyConstant.USER_WEB_TOKEN + cookie.getValue());
        }
        if (cookie == null || user == null) {// 判斷用戶是否經(jīng)過了授權(quán)
            // 判斷是否是AJAX訪問
            if (request.getHeader("x-requested-with") != null
                    && request.getHeader("x-requested-with").equalsIgnoreCase("XMLHttpRequest")) {
                response.setHeader("sessionstatus", "timeout");
                response.setStatus(403);
                return false;
            } else {
                response.sendRedirect(request.getContextPath()+"/home/no_index_toLoginSkip");
                //response.sendRedirect(request.getContextPath() +UserResourcesHelper.LOGIN_URL); // 非AJAX訪問，頁面跳轉(zhuǎn)
                //response.sendRedirect(request.getContextPath() +"https://open.weixin.qq.com/connect/oauth2/authorize?appid=wxd11f95277f85e24b&redirect_uri="+URLEncoder.encode("http://m.hobay.cn/user/no_loginPage", "utf-8")+"&response_type=code&scope=snsapi_base&state=123#wechat_redirect"); // 非AJAX訪問，頁面跳轉(zhuǎn)
                return false;
            }
        }
        return true;
    }
    @Override
    public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler,
            ModelAndView modelAndView) throws Exception {
    }
    @Override
    public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex)
            throws Exception {
    }
    private boolean isInclude(String url) {
        for (String pattern : patterns) {
            if (Pattern.matches(pattern, url)) {
                return true;
            }
        }
        return false;
    }
    /**
     * 根據(jù)名字獲取cookie
     * 
     * @param request
     * @param name
     *            cookie名字
     * @return
     */
    private static Cookie getCookieByName(HttpServletRequest request, String name) {
        Map<String, Cookie> cookieMap = ReadCookieMap(request);
        if (cookieMap.containsKey(name)) {
            Cookie cookie = (Cookie) cookieMap.get(name);
            return cookie;
        } else {
            return null;
        }
    }
    /**
     * 將cookie封裝到Map里面
     * 
     * @param request
     * @return
     */
    private static Map<String, Cookie> ReadCookieMap(HttpServletRequest request) {
        Map<String, Cookie> cookieMap = new HashMap<String, Cookie>();
        Cookie[] cookies = request.getCookies();
        if (null != cookies) {
            for (Cookie cookie : cookies) {
                cookieMap.put(cookie.getName(), cookie);
            }
        }
        return cookieMap;
    }

然后把這個(gè)攔截器注冊(cè)到spring中

代碼如下：

@EnableWebMvc
@Configuration
public class WebConfig  extends WebMvcConfigurerAdapter{
     @Bean
     SessionInterceptor sessioninterceptor() {
         return new SessionInterceptor();
    }
    /**
     * 配置攔截器
     * @author yuqingquan
     * @param registry
     */
    public void addInterceptors(InterceptorRegistry registry) {
        registry.addInterceptor(sessioninterceptor());
    }

以上為個(gè)人經(jīng)驗(yàn)，希望能給大家一個(gè)參考，也希望大家多多支持腳本之家。

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