spring2X*
拦截器实现
HandlerInterceptor接口，下面是我自定义的接口
public class RequestFilter implements HandlerInterceptor { @Override public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception { String appCode; //情况1 包含accessToken，解析出appCode,优先级高 String accessTokenStr = request.getParameter("accessToken"); appCode = this.decryptAppCode(accessTokenStr); if (StringUtils.isEmpty(appCode)) { //在accessToken中未获取导appCode，采用情况2 从请求头中获取 String client = request.getHeader("client"); appCode = StringUtils.acquireAppCode(client); } //存入共享线程变量中 ShareThread.threadLocal.set(appCode); return true; } }第二步 注册自定义拦截器
创建注册类------实现WebMvcConfig接口----------重写addInterceptors方法，我的代码如下
/** * 注册拦截器 * * @author qiaofeng */ @Configuration public class RegisterInterceptor implements WebMvcConfigurer { @Bean public RequestFilter requestFilterBean(){ return new RequestFilter(); } //注册request请求拦截器 @Override public void addInterceptors(InterceptorRegistry registry) { registry.addInterceptor(new RequestFilter()).addPathPatterns("/**"); } }注意
registry.addInterceptor(new RequestFilter()).addPathPatterns("/**"); 后面的/**表示所有请求都拦截
