HarmonyOS web页面javaScriptProxy多个name问题

javaScriptProxy只支持注册一个对象，若需要注册多个对象请使用registerJavaScriptProxy：https://developer.huawei.com/consumer/cn/doc/harmonyos-guides-V5/web-in-page-app-function-invoking-V5

不过多个，比较浪费，建议规范化开发。

多个情况下代码示例：

import web_webview from '@ohos.web.webview';
import business_error from '@ohos.base';

class testObj {
  constructor() {
  }

  test(): string {
    console.log('ArkUI Web Component');
    return "ArkUI Web Component";
  }

  toString(): void {
    console.log('Web Component toString');
  }
}

class webObj {
  constructor() {
  }

  webTest(): string {
    console.log('Web test');
    return "Web test";
  }

  webString(): void {
    console.log('Web test toString');
  }
}

@Entry
@Component
struct Index {
  controller: web_webview.WebviewController = new web_webview.WebviewController();
  @State testObjtest: testObj = new testObj();
  @State webTestObj: webObj = new webObj();
  build() {
    Column() {
      Button('refresh')
        .onClick(() => {
          try {
            this.controller.refresh();
          } catch (error) {
            let e: business_error.BusinessError = error as business_error.BusinessError;
            console.error(`ErrorCode: ${e.code},  Message: ${e.message}`);
          }
        })
      Button('Register JavaScript To Window')
        .onClick(() => {
          try {
            this.controller.registerJavaScriptProxy(this.testObjtest, "objName", ["test", "toString"]);
            this.controller.registerJavaScriptProxy(this.webTestObj, "objTestName", ["webTest", "webString"]);
          } catch (error) {
            let e: business_error.BusinessError = error as business_error.BusinessError;
            console.error(`ErrorCode: ${e.code},  Message: ${e.message}`);
          }
        })
      Web({ src: $rawfile('index.html'), controller: this.controller })
        .javaScriptAccess(true)
    }
  }
}