@Component public class AuthorizationInterceptor implements HandlerInterceptor { public static final String LOGIN_TOKEN_KEY = "Token"; @Autowired private TokenService tokenService; @Override public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception { //支持跨域请求 response.setHeader("Access-Control-Allow-Methods", "POST, GET, OPTIONS, DELETE"); response.setHeader("Access-Control-Max-Age", "3600"); response.setHeader("Access-Control-Allow-Credentials", "true"); response.setHeader("Access-Control-Allow-Headers", "x-requested-with,request-source,Token, Origin,imgType, Content-Type, cache-control,postman-token,Cookie, Accept,authorization"); response.setHeader("Access-Control-Allow-Origin", request.getHeader("Origin")); IgnoreAuth annotation; if (handler instanceof HandlerMethod) { annotation = ((HandlerMethod) handler).getMethodAnnotation(IgnoreAuth.class); } else { return true; }解析代码

这是一个基于Spring框架的拦截器，用于拦截HTTP请求并进行身份验证。具体来说，在每个请求到达处理程序之前，该拦截器会检查请求头中是否包含一个名为"Token"的字段。如果包含该字段，则将其传递给TokenService进行身份验证。如果验证成功，则该请求将被允许进入处理程序；否则，该请求将被拒绝。

此外，该拦截器还处理了跨域请求的相关设置，允许指定的HTTP头字段，以及支持从处理程序中排除身份验证的注释。