interceptor拦截器未生效
搭建项目时发现拦截器未生效
开始用的spring boot版本为1.5.6
代码如下：
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@Configuration public class WebConfig extends WebMvcConfigurerAdapter{ @Autowired private TimeInterceptor timeInterceptor; @Override public void addInterceptors(InterceptorRegistry registry) { registry.addInterceptor( this .timeInterceptor); super .addInterceptors(registry); } } |
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@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(); //类 String methodName = handlerMethod.getMethod().getName(); //方法名称 if (methodName.equals( "error" ) || methodName.equals( "success" )) { return super .preHandle(request, response, handler); } String uri = request.getRequestURI(); //请求路径 String remoteAddr = getIpAddr(request); //ip String method = request.getMethod(); //请求方式 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) { //出错 logger.error(e.toString()); } return super .preHandle(request, response, handler); } //获取客户端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; } } |
开始以为是版本问题，后升级为2.1.1，WebConfig改为实现WebMvcConfigurer，代码如下
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@Configuration @Component public class WebConfig implements WebMvcConfigurer{ @Autowired private RequestParamInfoIntorceptor requestParamInfoIntorceptor;
@Override public void addInterceptors(InterceptorRegistry registry) { registry.addInterceptor( this .requestParamInfoIntorceptor).addPathPatterns( "/**" ); } } |
验证后还是不行，继续排查后发现，在添加版本控制时，有配置类继承了WebMvcConfigurationSupport，查询WebMvcConfigurationSupport源码发现其中有拦截器注册方法addInterceptors(InterceptorRegistry registry)，所以在版本控制配置类中重写此方法添加拦截器，拦截器生效，问题解决。
解决方案
代码如下：
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@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实现登录失效拦截等
首先写一个实现HandlerInterceptor的类
代码如下：
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public class SessionInterceptor implements HandlerInterceptor { @Autowired RedisTemplate<String, String> redisTemplate; //private static String LOGIN_CODE = "/user/no_loginPage?Landingcode=" + UserResourcesHelper.LANDINGCODE_106;// 登录地址及code信息 //private static String LOGIN_CODE = "https://open.weixin.qq测试数据/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 { // 一些不需要过滤的方法 String url = request.getRequestURI(); if (isInclude(url) == true ) return true ; // 权限校验 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 ) { // 判断用户是否经过了授权 // 判断是否是AJAX访问 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访问，页面跳转 //response.sendRedirect(request.getContextPath() +"https://open.weixin.qq测试数据/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访问，页面跳转 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 ; } /** * 根据名字获取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 ; } } /** * 将cookie封装到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; } |
然后把这个拦截器注册到spring中
代码如下：
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@EnableWebMvc @Configuration public class WebConfig extends WebMvcConfigurerAdapter{ @Bean SessionInterceptor sessioninterceptor() { return new SessionInterceptor(); } /** * 配置拦截器 * @author yuqingquan * @param registry */ public void addInterceptors(InterceptorRegistry registry) { registry.addInterceptor(sessioninterceptor()); } |
以上为个人经验，希望能给大家一个参考，也希望大家多多支持。
原文链接：https://blog.csdn.net/sorrow_yc/article/details/88736732
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