在Aurelia.io示例中读取json时出错

Question

我通过添加自定义模块来扩展aurelia的入门应用程序 。 读取json时出现错误“未捕获的SyntaxError：意外的令牌：”。 但是json验证程序没有发现任何错误。

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." } ] } { "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." } ] }

这是我尝试加载json的模块（基本上是flickr.js的复制粘贴，可以在示例代码中找到）`import'inject} from'aurelia-framework'; 从'aurelia-http-client'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?');
  }
}

'当执行示例代码时，它将从flikr加载json并将其包装在jsonp_callback_92661（）中。 那是唯一的区别。 这可能是我问题的根源吗？

Answer 1

是的，这就是问题的根源。 当您实际上不需要jsonp时，便会使用它。 由于您自己提供的是静态json文件，并且大概是在主应用程序所在的同一域中提供的，因此您无需使用jsonp。 如果您还不熟悉，那么可以在SO中找到有关jsonp的很好的解释 （闪烁将响应包装在函数调用中，因为jsonp起作用是必需的）。

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;
});