// xxx.ets
import { webview } from '@kit.ArkWeb';

@Entry
@Component
struct WebComponent {
  controller: webview.WebviewController = new webview.WebviewController();
  responseWeb: WebResourceResponse = new WebResourceResponse();
  heads: Header[] = new Array();
  @State webData: string = "n" +
    "n" +
    "n" +
    "n" +
    "n" +
    "n" +
    "

n" +
    "n" +
    "";

  build() {
    Column() {
      Web({ src: 'www.example.com', controller: this.controller })
        .onInterceptRequest((event) => {
          if (event) {
            console.log('url:' + event.request.getRequestUrl());
          }
          let head1: Header = {
            headerKey: "Connection",
            headerValue: "keep-alive"
          }
          let head2: Header = {
            headerKey: "Cache-Control",
            headerValue: "no-cache"
          }
          let length = this.heads.push(head1);
          length = this.heads.push(head2);
          const promise: Promise = new Promise((resolve: Function, reject: Function) => {
            this.responseWeb.setResponseHeader(this.heads);
            this.responseWeb.setResponseData(this.webData);
            this.responseWeb.setResponseEncoding('utf-8');
            this.responseWeb.setResponseMimeType('text/html');
            this.responseWeb.setResponseCode(200);
            this.responseWeb.setReasonMessage('OK');
            resolve("success");
          })
          promise.then(() => {
            console.log("prepare response ready");
            this.responseWeb.setResponseIsReady(true);
          })
          this.responseWeb.setResponseIsReady(false);
          return this.responseWeb;
        })
    }
  }
}

setResponseData

setResponseData(data: string | number | Resource | ArrayBuffer): void

setResponseHeader

setResponseHeader(header: Array

)