spring boot中interceptor拦截器未生效的解决

spring boot中interceptor-未生效的解决

目录interceptor-未生效开始用的spring boot版本为1.5.6解决方案HandlerInterceptor实现登录失效拦截等首先写一个实现HandlerInterceptor的类然后把这个-注册到spring中

interceptor-未生效

搭建项目时发现-未生效

开始用的spring boot版本为1.5.6

代码如下：

@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();//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.getRequeshttp://tURI();//请求路径

String remoteAddr = getIpAddr(request);//ip

String method = request.getMethod(); //请求方式

Map pramMap = request.getParameterMap();

StringBuffer sbf = new StringBuffer();

int count = 0;

String forCunt = "";

for(Map.Entry 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

@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-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-，-生效，问题解决。

解决方案

代码如下：

@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实现登录失效拦截等

首先写一个实现HandlerInterceptor的类

代码如下：

public class SessionInterceptor implements HandlerInterceptor {

@Autowired

RedisTemplate 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.com/connect/oauth2/authorize?appid=wxd11f95277f85e24b&redirect_uri=&response_type=code&scope=snsapi_userinfo&state=1234#wechat_redirect";

protected List patterns = new ArrayList(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.com/connect/oauth2/authorize?appid=wxd11f95277f85e24b&redirect_uri="+URLEncoder.encode("http://m.hobay-/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 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 ReadCookieMap(HttpServletRequest request) {

Map cookieMap = new HashMap();

Cookie[] cookies = request.getCookies();

if (null != cookies) {

for (Cookie cookie : cookies) {

cookieMap.put(cookie.getName(), cookie);

}

}

return cookieMap;

}

然后把这个-注册到spring中

代码如下：

@EnableWebMvc

@Configuration

public class WebConfig extends WebMvcConfigurerAdapter{

@Bean

SessionInterceptor sessioninterceptor() {

return new SessionInterceptor();

}

/**

* 配置-

* @author yuqingquan

* @param registry

*/

public void addInterceptors(InterceptorRegistry registry) {

registry.addInterceptor(sessioninterceptor());

}

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