将 android 应用程序同步到本地主机上的 couchbase 服务器

Question

我正在尝试将我的 android 应用与本地主机上的 couchbase 服务器连接我已经初始化数据库和管理器如下：初始化数据库后，我调用 startSync() 函数接受类型为 database

的参数

                  public static final String DB_NAME = "firstdb";
                    public static final String TAG = "firstdb";private void helloCBL() {
                        Manager manager = null;
                        Database database = null;
                        try {
                            manager = new Manager(new AndroidContext(this), Manager.DEFAULT_OPTIONS);
                            database = manager.getDatabase(DB_NAME);
                            database.addChangeListener(this);
                            startSync(database);

                        } catch (Exception e) {
                            Log.e(TAG, "Error getting database", e);
                            return;
                        }

                    }

这是 startSync() 函数

         protected void startSync(Database database) {
                        URL syncUrl;
                    try {
                        syncUrl = new URL("http://10.0.2.2:4984/firstdb");
                    } catch (MalformedURLException e) {
                        throw new RuntimeException(e);
                    }


                    Replication pullReplication = database.createPullReplication(syncUrl);
                    pullReplication.setContinuous(true);

                    Replication pushReplication = database.createPushReplication(syncUrl);
                    pushReplication.setContinuous(true);

                    pullReplication.addChangeListener(this);
                    pushReplication.addChangeListener(this);


                    // start both replications
                    pullReplication.start();
                    pushReplication.start();

                }

但是我的 logcat 出现如下错误：我对在 android app

中使用 url 感到困惑

    12-10 02:36:16.930 4556-4588/com.couchbase.examples.couchdbapp E/RemoteRequest: io exception.  url: http://10.0.2.2:4984/firstdb/_local/2b7e37db76812fef1b8c7ca3d4b30b99e570ea6f
    12-10 02:36:16.930 4556-4588/com.couchbase.examples.couchdbapp E/RemoteRequest: org.apache.http.conn.ConnectTimeoutException: Connect to /10.0.2.2:4984 timed out
    12-10 02:36:16.930 4556-4588/com.couchbase.examples.couchdbapp E/RemoteRequest:     at org.apache.http.conn.scheme.PlainSocketFactory.connectSocket(PlainSocketFactory.java:121)
    12-10 02:36:16.930 4556-4588/com.couchbase.examples.couchdbapp E/RemoteRequest:     at org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection(DefaultClientConnectionOperator.java:144)
    12-10 02:36:16.930 4556-4588/com.couchbase.examples.couchdbapp E/RemoteRequest:     at org.apache.http.impl.conn.AbstractPoolEntry.open(AbstractPoolEntry.java:164)
    12-10 02:36:16.930 4556-4588/com.couchbase.examples.couchdbapp E/RemoteRequest:     at org.apache.http.impl.conn.AbstractPooledConnAdapter.open(AbstractPooledConnAdapter.java:119)
    12-10 02:36:16.930 4556-4588/com.couchbase.examples.couchdbapp E/RemoteRequest:     at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:360)
    12-10 02:36:16.930 4556-4588/com.couchbase.examples.couchdbapp E/RemoteRequest:     at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:555)
    12-10 02:36:16.930 4556-4588/com.couchbase.examples.couchdbapp E/RemoteRequest:     at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:487)
    12-10 02:36:16.930 4556-4588/com.couchbase.examples.couchdbapp E/RemoteRequest:     at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:465)
    12-10 02:36:16.930 4556-4588/com.couchbase.examples.couchdbapp E/RemoteRequest:     at com.couchbase.lite.support.RemoteRequest.executeRequest(RemoteRequest.java:184)
    12-10 02:36:16.930 4556-4588/com.couchbase.examples.couchdbapp E/RemoteRequest:     at com.couchbase.lite.support.RemoteRequest.run(RemoteRequest.java:103)
    12-10 02:36:16.930 4556-4588/com.couchbase.examples.couchdbapp E/RemoteRequest:     at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:390)
    12-10 02:36:16.930 4556-4588/com.couchbase.examples.couchdbapp E/RemoteRequest:     at java.util.concurrent.FutureTask.run(FutureTask.java:234)
    12-10 02:36:16.930 4556-4588/com.couchbase.examples.couchdbapp E/RemoteRequest:     at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access1(ScheduledThreadPoolExecutor.java:153)
    12-10 02:36:16.930 4556-4588/com.couchbase.examples.couchdbapp E/RemoteRequest:     at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:267)
    12-10 02:36:16.930 4556-4588/com.couchbase.examples.couchdbapp E/RemoteRequest:     at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1080)
    12-10 02:36:16.930 4556-4588/com.couchbase.examples.couchdbapp E/RemoteRequest:     at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:573)
    12-10 02:36:16.930 4556-4588/com.couchbase.examples.couchdbapp E/RemoteRequest:     at java.lang.Thread.run(Thread.java:856)

当我运行在 android device.when 我运行我的应用程序时发生这些错误在模拟器上应用它没有显示任何错误，但给出了详细的消息

12-10 13:13:03.482 3718-3770/com.couchbase.examples.couchdbapp W/Sync: com.couchbase.lite.replicator.PullerInternal@3139637: Received invalid doc ID from _changes: {seq=1, id=_user/, changes=[{rev=}]}

Answer 1

通过与朋友的讨论，我找到了解决上述问题的办法我刚刚将我的笔记本电脑和 Android phone 连接到同一网络（从本地主机访问服务器时很重要）然后我在 startSync() 函数中更改了 url 如下：

http://192.168.1.17:4984/firstdb

192.168.1.17

这是我笔记本电脑的 IP 地址，4984 是在 sync_gateway 上监听请求的端口只需对上面的代码进行这些简单的更改，您就可以使用sync_gateway 在 android 申请中

将 android 应用程序同步到本地主机上的 couchbase 服务器

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