spring boot 跨域问题

public class WebMvcConfig implements WebMvcConfigurer {

@Override  public void addInterceptors(InterceptorRegistry registry) {   registry.addInterceptor(new CorsInterceptor());  }

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//添加interceptor

public class CorsInterceptor extends HandlerInterceptorAdapter {

@Override  public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler)    throws Exception {   // 添加跨域CORS   // log.info("---------拦截请求----------");   response.setHeader("Access-Control-Allow-Origin", "*");   response.setHeader("Access-Control-Allow-Headers", "*");   response.setHeader("Access-Control-Allow-Methods", "*");         return true;  } }