滑動視窗的卷積實現、Bounding Box 預測
阿新 • • 發佈:2021-07-29
java後臺解決跨域問題
解決跨域問題的方式有很多,這裡主要是添加註解的方式和採用新增攔截器的方法:
方法一、spring boot中只用在Controller類上新增一個“@CrossOrigin“註解就可以實現對當前controller 的跨域 訪問了,當然這個標籤也可以加到方法上。
@CrossOrigin public class CommonController { }
其他controller類繼承以上這個類就可以解決跨域問題。
注意:“@CrossOrigin“註解要求jdk1.8以上版本
方法二、採用新增攔截器的方法
@Configuration public class WebConfig extends WebMvcConfigurerAdapter { @Autowired private EnvConfig envConfig; @Override public void addInterceptors(InterceptorRegistry registry) { registry.addInterceptor(new HandlerInterceptor() { @Override public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception { boolean isTrue = envConfig.getIsDev();//判斷是測試服才需要解決跨域問題 if (isTrue) { response.addHeader("Access-Control-Allow-Origin", "*");
response.addHeader("Access-Control-Allow-Methods", "GET, POST, PUT, DELETE, OPTIONS"); response.addHeader("Access-Control-Allow-Headers", "Content-Type,X-Requested-With,accept,Origin,Access-Control-Request-Method,Access-Control-Request-Headers,token"); } 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 { } }); }
}