HarmonyOS Web的onInterceptRequest()方法如何异步返回

先设置setResponseIsReady为false，那么内核此时不会去读取response的内容。当获取到fd后再将其改为true，此时内核才会去读去响应数据

参考demo：

build() {

  Column() {
    Web({ src: $rawfile('catch.html'), controller: this.webviewController })
      .onInterceptRequest((event) => {
        if (event) {
          console.log('url123456:' + event.request.getRequestUrl())
        }

        const url = event!.request.getRequestUrl();

        // const regExp = new RegExp("^(http|https)[w/-]+(.jpg)$");
        console.log(url.endsWith(".jpg") + '123456')
        if (!url.endsWith(".jpg")) return null;
        try {
          // const responseweb = new WebResourceResponse();
          let url2='https://xxx.jpg';
          this.xxxx(url2).then(fd => {
            this.responseweb.setResponseData(fd);
            this.responseweb.setResponseCode(200);
            this.responseweb.setReasonMessage('OK');
            this.responseweb.setResponseIsReady(true);
            console.log(fd+" 1234567")
          });
          this.responseweb.setResponseMimeType('image/*');
          this.responseweb.setResponseIsReady(false);
          console.log(this.responseweb.getResponseData().toString+"123456")
          return this.responseweb;

        } catch (error) {
          console.error(`[Demo]Code: ${error.code},Message: ${error.message} `);
          return null
        }

      })
  }
}