怎么使用pdfjs三方库预览pdf文档

ets: 
  import webview from ‘@ohos.web.webview’; 
 
@Entry 
@Component 
struct WebPage { 
  webController: webview.WebviewController = new webview.WebviewController(); 
  aboutToAppear(){ 
    webview.WebviewController.setWebDebuggingAccess(true); 
  } 
 
  build() { 
    Stack({ alignContent: Alignment.TopStart }) { 
      Row() { 
        Column() { 
          Web({ src: $rawfile(‘text1.html’), controller: this.webController }) 
            .width(‘100%’) 
          .aspectRatio(1) 
            .zoomAccess(false) 
            .javaScriptAccess(true) 
            .domStorageAccess(true) 
            .overviewModeAccess(true) 
            .imageAccess(true) 
            .onlineImageAccess(true) 
            .fileAccess(true) 
            .databaseAccess(true) 
            .multiWindowAccess(true) 
            .geolocationAccess(true) 
            .horizontalScrollBarAccess(true) 
            .verticalScrollBarAccess(true) 
            .cacheMode(CacheMode.Default) 
            .mixedMode(MixedMode.All) 
 
            .onHttpErrorReceive(() => { 
              console.log(‘1111111111111 onHttpErrorReceive’); 
            }) 
            .onErrorReceive((event) => { 
              console.log('1111111111111 onErrorReceive '+ JSON.stringify(event?.error)); 
              if (event) { 
                let result = event.request.getRequestHeader(); 
                console.log('The request header result size is ’ + result.length); 
                for (let i of result) { 
                  console.log('The request header key is : ’ + i.headerKey + ', value is : ’ + i.headerValue); 
                } 
              } 
            }) 
            .onPageBegin(() => { 
              console.log(‘1111111111111 onPageBegin’); 
            }) 
            .onPageEnd(() => { 
              console.log(‘1111111111111 onPageEnd’); 
            }) 
        } 
      } 
    } 
  } 
}
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