NativeScript，Android - 与本地主机的连接失败

Question

我在我的 android 模拟器上连接到 localhost 时遇到问题。 我已经创建了休息节点服务器：

...
app.listen(80, () => console.log('Example app listening on port 80!'))

当我尝试使用 NativeScript 连接到它时：

this.http.get("10.0.2.2/api/categories")
        .map(function (result) { return result.json(); })
        .subscribe(function (result) {
        console.log(result);
    });

我明白了：

System.err: java.net.MalformedURLException: no protocol: 10.0.2.2/api/categories
System.err:     at java.net.URL.<init>(URL.java:590)
System.err:     at java.net.URL.<init>(URL.java:487)
System.err:     at java.net.URL.<init>(URL.java:436)
System.err:     at org.nativescript.widgets.Async$Http$HttpRequestTask.doInBackground(Async.java:512)
System.err:     at org.nativescript.widgets.Async$Http$1.run(Async.java:482)
System.err:     at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1162)
System.err:     at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:636)
System.err:     at org.nativescript.widgets.Async$PriorityThreadFactory$1.run(Async.java:52)
System.err:     at java.lang.Thread.run(Thread.java:764)
JS: ERROR Error: Uncaught (in promise): Response with status: 200  for URL: null

我错过了什么吗？

Answer 1

试试这个：

this.http.get("http://10.0.2.2/api/categories")
        .map(function (result) { return result.json(); })
        .subscribe(function (result) {
        console.log(result);
    });