不幸的是,“应用程序名称”已经停止因为Jsoup库

我添加Jsoup库从:文件>项目结构>依赖当我写这个代码:

val dockhalij = Jsoup.connect("http://khalikmusic.org").get() 

我的应用程序将正确编译,但是当我在我的设备(Galaxy Grand Duos)上测试它时,将会关闭并显示消息。不幸的是,“应用程序名称”已停止。

没有这行我的应用程序正常工作,但我不能使用Jsoup库。

logcat:

 08-29 18:09:39.188 31871-31871/? E/AndroidRuntime: FATAL EXCEPTION: main java.lang.RuntimeException: Unable to start activity ComponentInfo{ir.bostanu.jelvilmusic/ir.bostanu.jelvilmusic.MainActivity}: android.os.NetworkOnMainThreadException at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2245) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2299) at android.app.ActivityThread.access$700(ActivityThread.java:150) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1280) at android.os.Handler.dispatchMessage(Handler.java:99) at android.os.Looper.loop(Looper.java:137) at android.app.ActivityThread.main(ActivityThread.java:5283) at java.lang.reflect.Method.invokeNative(Native Method) at java.lang.reflect.Method.invoke(Method.java:511) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1102) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:869) at dalvik.system.NativeStart.main(Native Method) Caused by: android.os.NetworkOnMainThreadException at android.os.StrictMode$AndroidBlockGuardPolicy.onNetwork(StrictMode.java:1128) at java.net.InetAddress.lookupHostByName(InetAddress.java:385) at java.net.InetAddress.getAllByNameImpl(InetAddress.java:236) at java.net.InetAddress.getAllByName(InetAddress.java:214) at libcore.net.http.HttpConnection.<init>(HttpConnection.java:70) at libcore.net.http.HttpConnection.<init>(HttpConnection.java:50) at libcore.net.http.HttpConnection$Address.connect(HttpConnection.java:340) at libcore.net.http.HttpConnectionPool.get(HttpConnectionPool.java:87) at libcore.net.http.HttpConnection.connect(HttpConnection.java:128) at libcore.net.http.HttpEngine.openSocketConnection(HttpEngine.java:316) at libcore.net.http.HttpEngine.connect(HttpEngine.java:311) at libcore.net.http.HttpEngine.sendSocketRequest(HttpEngine.java:290) at libcore.net.http.HttpEngine.sendRequest(HttpEngine.java:240) at libcore.net.http.HttpURLConnectionImpl.connect(HttpURLConnectionImpl.java:81) at org.jsoup.helper.HttpConnection$Response.execute(HttpConnection.java:652) at org.jsoup.helper.HttpConnection$Response.execute(HttpConnection.java:629) at org.jsoup.helper.HttpConnection.execute(HttpConnection.java:261) at org.jsoup.helper.HttpConnection.get(HttpConnection.java:250) at ir.bostanu.jelvilmusic.MainActivity.onCreate(MainActivity.kt:49) at android.app.Activity.performCreate(Activity.java:5283) at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1097) at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2209) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2299) at android.app.ActivityThread.access$700(ActivityThread.java:150) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1280) at android.os.Handler.dispatchMessage(Handler.java:99) at android.os.Looper.loop(Looper.java:137) at android.app.ActivityThread.main(ActivityThread.java:5283) at java.lang.reflect.Method.invokeNative(Native Method) at java.lang.reflect.Method.invoke(Method.java:511) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1102) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:869) at dalvik.system.NativeStart.main(Native Method) 

当我添加库文件>项目结构>依赖项,库不工作对我(总是),我不知道为什么

这是因为你正在主线程上执行网络操作,试试这个:

 Thread threadJSoup = new Thread(new Runnable() { @Override public void run() { try { val dockhalij = Jsoup.connect("http://khalikmusic.org").get(); } catch (Exception e) { e.printStackTrace(); } } }); threadJSoup.start(); 

请参阅文章如何修复android.os.NetworkOnMainThreadException?

这里解释说,你不能在主线程上执行网络操作,而且你似乎执行了这一行

  val dockhalij = Jsoup.connect("http://khalikmusic.org").get() 

在主线程上。