Question

我通过添加自定义模块来扩展aurelia＆＃39; get started app。我收到错误＆＃34; Uncaught SyntaxError：意外的令牌：＆＃34;一边读一个json。但是json验证器没有发现任何错误。

这是我的json { "news": [ { "title": "Lorem Ipsum is simply dummy text", "type": "news", "tags": [ "news", "fish", "loremipsumdolor" ], "text": "Lorem Ipsum is simply dummy text of the printing and typesetting industry." }, { "title": "Lorem Ipsum", "type": "news", "tags": [ "news", "fish" ], "text": "Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s." } ] }

这是我的模块试图加载json（基本上它是来自flickr.js的复制粘贴，可以在示例代码中找到） ` 从＆aurelia-framework＆＃39;中导入{注入}; 从＆aurelia-http-client＆＃39;;

导入{HttpClient}

@inject(HttpClient)
export class News{
  heading = 'News';
  items = [];
  url = '/res/data.json';

  constructor(http){
    this.http = http;
  }

  activate(){
    debugger;
    return this.http.jsonp(this.url).then(response => {
      this.items = response.content.news;
    });
  }

  canDeactivate(){
    return confirm('Are you sure you want to leave?');
  }
}

＆＃39; 当执行示例代码时，它从flikr加载json并将其包装在jsonp_callback_92661（）中。这是唯一的区别。可能它是我问题的根源吗？

Answer 1

是的，那是你问题的根源。当您不需要时，您正在使用jsonp。由于您自己提供静态json文件，并且可能在主应用程序所在的域中提供服务，因此您不需要使用jsonp。如果您还不熟悉，Good explanations about jsonp就在这里（闪烁包含函数调用中的响应，因为jsonp需要这样做）。

您应该可以使用get：

return this.http.get(this.url).then(response => {
  //not sure if response.content is an object already.
  //you may need to JSON.parse response.content
  this.items = response.content.news;
});

在Aurelia.io示例中读取json时出错

1 个答案: