android - http url 连接设置中的异常
问题描述
我在 connection.connect() 上遇到异常。我已附加了我的 logcat 的输出。提到了运行时异常。我尝试在线程上运行此服务，但仍然发生异常。不知道是什么原因造成的。请告知为什么会发生此异常以及如何修复它。
代码：
public class TimeZoneDownloadingService extends Service {
private IBinder mBinder = new myBinder();
@Override
public void onCreate() {
super.onCreate();
showMessage("Service Started");
}
private void showMessage(String message)
{
Toast toast = Toast.makeText(this, message, Toast.LENGTH_LONG);
toast.show();
}
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
showMessage("StartCommand");
//return super.onStartCommand(intent, flags, startId);
Thread thread = new Thread(new Runnable(){
public void run(){
StartDownloadTimezone();
}
});
//thread.start();
thread.start();
return START_NOT_STICKY;
}
@Nullable
@Override
public IBinder onBind(Intent intent) {
showMessage(" on Bind");
return mBinder;
}
@Override
public void onTaskRemoved(Intent rootIntent) {
super.onTaskRemoved(rootIntent);
stopSelf();
}
public class myBinder extends Binder {
TimeZoneDownloadingService getService()
{
return TimeZoneDownloadingService.this;
}
}
public void StartDownloadTimezone() {
HttpURLConnection connection = null;
InputStream stream = null;
try{
URL url = new URL("https://api.timezonedb.com/v2.1/list-time-zone?key=P8B5V3KL22GA&format=json&country=US");
connection = (HttpURLConnection) url.openConnection();
connection.setRequestMethod("GET");
connection.setDoInput(true);
connection.setDoOutput(true);
connection.connect();
stream = connection.getInputStream();
BufferedReader reader = new BufferedReader(new InputStreamReader(stream));
StringBuffer buffer = new StringBuffer();
String line = " ";
while((line = reader.readLine()) != null)
{
buffer.append(line);
}
parse(buffer);
showMessage("URL connection successful");
}catch(Exception exception)
{
exception.printStackTrace();
}
}
private void parse(StringBuffer buff)
{
showMessage("Parsing");
}
}
日志猫：
06-12 21:40:42.398 16115-16115/? E/Zygote: v2
06-12 21:40:42.398 16115-16115/? I/libpersona: KNOX_SDCARD checking this for 10080
06-12 21:40:42.398 16115-16115/? I/libpersona: KNOX_SDCARD not a persona
06-12 21:40:42.398 16115-16115/? I/SELinux: Function: selinux_compare_spd_ram, SPD-policy is existed. and_ver=SEPF_SM-J500H_5.1.1 ver=48
06-12 21:40:42.398 16115-16115/? I/SELinux: Function: selinux_compare_spd_ram , priority [1] , priority version is VE=SEPF_SM-J500H_5.1.1_0048
06-12 21:40:42.398 16115-16115/? E/SELinux: [DEBUG] get_category: variable seinfo: default sensitivity: NULL, cateogry: NULL
06-12 21:40:42.398 16115-16115/? I/art: Late-enabling -Xcheck:jni
06-12 21:40:42.418 16115-16115/? D/TimaKeyStoreProvider: in addTimaSignatureService
06-12 21:40:42.418 16115-16115/? D/TimaKeyStoreProvider: TimaSignature is unavailable
06-12 21:40:42.418 16115-16115/? D/ActivityThread: Added TimaKesytore provider
06-12 21:40:42.448 16115-16115/com.example.worldclocktest W/ResourcesManager: getTopLevelResources: com.example.worldclocktest for user 0
06-12 21:40:42.458 16115-16115/com.example.worldclocktest I/InjectionManager: Inside getClassLibPath + mLibMap{0=, 1=}
06-12 21:40:42.458 16115-16115/com.example.worldclocktest I/InjectionManager: Inside getClassLibPath caller
06-12 21:40:42.458 16115-16115/com.example.worldclocktest D/InjectionManager: InjectionManager
06-12 21:40:42.458 16115-16115/com.example.worldclocktest D/InjectionManager: fillFeatureStoreMap com.example.worldclocktest
06-12 21:40:42.468 16115-16115/com.example.worldclocktest I/InjectionManager: Constructor com.example.worldclocktest, Feature store :{}
06-12 21:40:42.468 16115-16115/com.example.worldclocktest I/InjectionManager: featureStore :{}
06-12 21:40:42.478 16115-16115/com.example.worldclocktest W/ResourcesManager: getTopLevelResources: com.example.worldclocktest for user 0
06-12 21:40:42.478 16115-16115/com.example.worldclocktest W/ResourcesManager: getTopLevelResources: com.example.worldclocktest for user 0
06-12 21:40:42.538 16115-16115/com.example.worldclocktest W/ResourcesManager: getTopLevelResources: com.example.worldclocktest for user 0
06-12 21:40:42.538 16115-16115/com.example.worldclocktest W/ResourcesManager: getTopLevelResources: com.example.worldclocktest for user 0
06-12 21:40:42.538 16115-16115/com.example.worldclocktest D/DisplayManager: DisplayManager()
06-12 21:40:42.548 16115-16115/com.example.worldclocktest W/art: Before Android 4.1, method android.graphics.PorterDuffColorFilter androidx.vectordrawable.graphics.drawable.VectorDrawableCompat.updateTintFilter(android.graphics.PorterDuffColorFilter, android.content.res.ColorStateList, android.graphics.PorterDuff$Mode) would have incorrectly overridden the package-private method in android.graphics.drawable.Drawable
06-12 21:40:42.578 16115-16115/com.example.worldclocktest D/PhoneWindow: *FMB* installDecor mIsFloating : false
06-12 21:40:42.578 16115-16115/com.example.worldclocktest D/PhoneWindow: *FMB* installDecor flags : -2139029248
06-12 21:40:42.608 16115-16115/com.example.worldclocktest I/art: Rejecting re-init on previously-failed class java.lang.Class<androidx.core.view.ViewCompat$2>
06-12 21:40:42.608 16115-16115/com.example.worldclocktest I/art: Rejecting re-init on previously-failed class java.lang.Class<androidx.core.view.ViewCompat$2>
06-12 21:40:42.868 16115-16115/com.example.worldclocktest D/Activity: performCreate Call Injection manager
06-12 21:40:42.868 16115-16115/com.example.worldclocktest I/InjectionManager: dispatchOnViewCreated > Target : com.example.worldclocktest.MainActivity isFragment :false
06-12 21:40:42.908 16115-16131/com.example.worldclocktest D/OpenGLRenderer: Use EGL_SWAP_BEHAVIOR_PRESERVED: true
06-12 21:40:42.938 16115-16132/com.example.worldclocktest I/System.out: (HTTPLog)-Static: isSBSettingEnabled false
06-12 21:40:42.938 16115-16132/com.example.worldclocktest I/System.out: (HTTPLog)-Static: isShipBuild true
06-12 21:40:42.938 16115-16132/com.example.worldclocktest I/System.out: (HTTPLog)-Thread-6283-58592290: SmartBonding Enabling is false, SHIP_BUILD is true, log to file is false, DBG is false
06-12 21:40:42.938 16115-16132/com.example.worldclocktest I/System.out: (HTTPLog)-Thread-6283-58592290: SMARTBONDING_FEATURE_ENABLED is false
06-12 21:40:42.938 16115-16132/com.example.worldclocktest I/System.out: (HTTPLog)-Static: isSBSettingEnabled false
06-12 21:40:42.948 16115-16115/com.example.worldclocktest D/PhoneWindow: *FMB* isFloatingMenuEnabled mFloatingMenuBtn : null
06-12 21:40:42.948 16115-16115/com.example.worldclocktest D/PhoneWindow: *FMB* isFloatingMenuEnabled return false
06-12 21:40:42.978 16115-16131/com.example.worldclocktest I/Adreno-EGL: <qeglDrvAPI_eglInitialize:379>: EGL 1.4 QUALCOMM build: AU_LINUX_ANDROID_LA.BR.1.1.3_RB1.05.01.00.032.018_msm8916_32_refs/tags/AU_LINUX_ANDROID_LA.BR.1.1.3_RB1.05.01.00.032.018__release_AU (I856e09677e)
OpenGL ES Shader Compiler Version: E031.25.03.04
Build Date: 05/03/15 Sun
Local Branch:
Remote Branch: refs/tags/AU_LINUX_ANDROID_LA.BR.1.1.3_RB1.05.01.00.032.018
Local Patches: NONE
Reconstruct Branch: NOTHING
06-12 21:40:42.978 16115-16131/com.example.worldclocktest I/OpenGLRenderer: Initialized EGL, version 1.4
06-12 21:40:42.998 16115-16131/com.example.worldclocktest D/OpenGLRenderer: Enabling debug mode 0
06-12 21:40:43.008 16115-16115/com.example.worldclocktest E/RecyclerView: No adapter attached; skipping layout
06-12 21:40:43.048 16115-16115/com.example.worldclocktest I/InjectionManager: dispatchCreateOptionsMenu :com.example.worldclocktest.MainActivity
06-12 21:40:43.048 16115-16115/com.example.worldclocktest I/InjectionManager: dispatchPrepareOptionsMenu :com.example.worldclocktest.MainActivity
06-12 21:40:43.118 16115-16115/com.example.worldclocktest E/RecyclerView: No adapter attached; skipping layout
06-12 21:40:43.128 16115-16115/com.example.worldclocktest I/Timeline: Timeline: Activity_idle id: android.os.BinderProxy@329f0535 time:88098473
06-12 21:40:44.498 16115-16132/com.example.worldclocktest W/System.err: java.lang.RuntimeException: Can't create handler inside thread that has not called Looper.prepare()
06-12 21:40:44.498 16115-16132/com.example.worldclocktest W/System.err: at android.os.Handler.<init>(Handler.java:200)
06-12 21:40:44.498 16115-16132/com.example.worldclocktest W/System.err: at android.os.Handler.<init>(Handler.java:114)
06-12 21:40:44.498 16115-16132/com.example.worldclocktest W/System.err: at android.widget.Toast$TN.<init>(Toast.java:569)
06-12 21:40:44.498 16115-16132/com.example.worldclocktest W/System.err: at android.widget.Toast.<init>(Toast.java:129)
06-12 21:40:44.498 16115-16132/com.example.worldclocktest W/System.err: at android.widget.Toast.makeText(Toast.java:427)
06-12 21:40:44.498 16115-16132/com.example.worldclocktest W/System.err: at com.example.worldclocktest.TimeZoneDownloadingService.showMessage(TimeZoneDownloadingService.java:31)
06-12 21:40:44.498 16115-16132/com.example.worldclocktest W/System.err: at com.example.worldclocktest.TimeZoneDownloadingService.parse(TimeZoneDownloadingService.java:103)
06-12 21:40:44.498 16115-16132/com.example.worldclocktest W/System.err: at com.example.worldclocktest.TimeZoneDownloadingService.StartDownloadTimezone(TimeZoneDownloadingService.java:91)
06-12 21:40:44.498 16115-16132/com.example.worldclocktest W/System.err: at com.example.worldclocktest.TimeZoneDownloadingService$1.run(TimeZoneDownloadingService.java:41)
06-12 21:40:44.498 16115-16132/com.example.worldclocktest W/System.err: at java.lang.Thread.run(Thread.java:818)
06-12 21:40:49.868 16115-16115/com.example.worldclocktest D/DisplayManager: DisplayManager()
06-12 22:33:16.304 19546-19573/com.example.worldclocktest W/System.err: Caused by: javax.net.ssl.SSLProtocolException: SSL handshake aborted: ssl=0xb89447a0: Failure in SSL library, usually a protocol error
解决方案
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