HarmonyOS 鸿蒙Next web组件加载沙箱pdf文件

参考以下demo：

@Entry
@Component
struct GetFile {
@State message: string = 'Hello World';
@State url: string = GlobalContext.getContext().getObject("filesDir") + '/2023_PDF.pdf'
// 获取应用文件路径
context = this as common.UIAbilityContext;
webviewController: webview.WebviewController = new webview.WebviewController();
responseweb: WebResourceResponse = new WebResourceResponse()

aboutToAppear() {
// 配置Web开启调试模式
webview.WebviewController.setWebDebuggingAccess(true);
this.getFile('https://www.gov.cn/zhengce/pdfFile/2023_PDF.pdf')
}

hasFile(filePath: string) {
let b = fs.accessSync(filePath)
return b
}

async getFile(url: string) {
const fileName = url.split("/").pop();
console.log(fileName + " 123456")
const filePath = GlobalContext.getContext().getObject("filesDir") + '/' + fileName;
// const filePath = 'file:///data/storage/el1/bundle/entry/resources/resfile' + '/' + fileName;
console.log(filePath + ' 123456')

const flag = this.hasFile(filePath);
console.log(flag + "A 123456")
if (!flag) {
await this.downloadImage(url, filePath);
console.log(flag + "ABC 123456")
}
return '123'
}

async downloadImage(url: string, filePath: string) {
try {
await axios({
method: "get",
url,
context: this.context,
filePath: filePath
});
} catch (error) {
console.error('[Demo] axios error');
}
}

build() {
Column() {
Button('MainTest')
.margin({top:20})
.onClick(() => {
try {
this.webviewController.loadUrl('file://' + this.url + '?#toolbar=0&navpanes=0')
// src: 'resource://rawfile/1.pdf?#toolbar=0&navpanes=0',
// console.log('123')
} catch (error) {
console.log('error')
}
})
Web({ src: 'resource://rawfile/1.pdf', controller: this.webviewController })
.domStorageAccess(true)
.javaScriptAccess(true)
.zoomAccess(true)
.fileAccess(false)
}
}
}