at android.os.StrictMode$AndroidBlockGuardPolicy.onNetwork(错误

最新推荐文章于 2021-05-30 20:14:50 发布
转载 最新推荐文章于 2021-05-30 20:14:50 发布 · 1k 阅读 · 0
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#android开发



at android.os.StrictMode$AndroidBlockGuardPolicy.onNetwork(

这样的错误。可能是android系统版本的问题

在3.0以后，不允许在主线成中访问网络。

使用StrictMode-StrictMode原理(1)
怪蜀黍
06-23 824
StrictMode如何使用，StrictMode原理，StrictMode入门
Android访问网络：服务端返回XML或JSON格式数据，Android 进行解析并使用ListView显示
pengdingxu10的专栏
12-28 1254
刚刚入门学习了Android的ListView，也是看了传智播客黎活明老师的视频学习了，但是一直运行不了，还报错了。报的错误是：at android.os.StrictMode$AndroidBlockGuardPolicy.onNetwork(StrictMode.java:1......省略后面的了。。。。。后面上网查找了一下资料，原因是Android4.0以后访问网络要在子线程里执行；不能在
Android错误笔记：android.os.NetworkOnMainThreadException
shuaizhigen的博客
08-30 925
偶然编写一个程序时候出现下面这种错误： FATAL EXCEPTION: main Process: com.aiiage.baiduocrdemo, PID: 7128 android.os.NetworkOnMainThreadException at android.os.StrictMode$AndroidBlockGuardPolicy.onNetwo...
at android.os.StrictMode$AndroidBlockGuardPolicy.onNetwork
HAPP NEW JAVA
04-15 2094
单词学习： Strict: adj.精确的; 绝对的; 严格的，严谨的; [植]笔直的 Block: n.块; 街区; 大楼，大厦; 障碍物，阻碍;  vt.阻止; 阻塞; 限制;  Guard: n.警卫; 狱吏，看守; 护卫队; 防护装置;  vt.保卫，守护; 看守; 加防护装置; 谨慎使用;  vi.警惕; 警卫; 
错误：StrictMode $ AndroidBlockGuardPolicy.onNetwork
donggu4963的博客
11-11 186
you have to insert 2 lines "StrictMode" on MainActivity Class, example's below: 在onCreate()方法下一行添加StrictMode 例子： public class MainActivity extends Activity { @Override prote...
E/AndroidRuntime: FATAL EXCEPTION: main Process: com.example.test_differ_kalman, PID: 32648 android.os.NetworkOnMainThreadException at android.os.StrictMode$AndroidBlockGuardPolicy.onNetwork(StrictMode.java:1668) at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:389) at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:230) at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:212) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:436) at java.net.Socket.connect(Socket.java:621) at com.example.poslib.PosLib.startThread(PosLib.java:197) at com.example.test_differ_kalman.MyFragment$1.onClick(MyFragment.java:48)
07-12
根据您提供的错误日志，可以看出发生了 `android.os.NetworkOnMainThreadException` 异常。这个异常通常在主线程上执行了网络操作时抛出，因为在 Android 中，主线程主要用于处理 UI 相关的操作，不允许在主线程上...
使用aar包中的线程连接socket，无法连接出现E/AndroidRuntime: FATAL EXCEPTION: main Process: com.example.test_differ_kalman, PID: 12202 android.os.NetworkOnMainThreadException at android.os.StrictMode$AndroidBlockGuardPolicy.onNetwork(StrictMode.java:1571) at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:389) at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:230) at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:212) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:436) at java.net.Socket.connect(Socket.java:621) at com.example.poslib.PosLib.startThread(PosLib.java:192) at com.example.test_differ_kalman.MyFragment$1.onClick(MyFragment.java:48)
07-12
根据您提供的错误日志，可以看到同样出现了 `android.os.NetworkOnMainThreadException` 异常。这个异常说明您的网络连接操作仍然在主线程中执行，而不是在后台线程中。 这可能是由于您的 `PosLib` 类的 `...
I/PCLog_: [com.naz.label.util.ActivityLifecycleUtils$FLC.onFragmentPaused(ActivityLifecycleUtils.java:178)] f-->ReaderCfgFragment{9c646c5} (d088ffd2-e5cc-4038-b466-a21015651526) id=0xffffffff} I/PCLog_: [com.naz.label.util.ActivityLifecycleUtils$FLC.onFragmentViewDestroyed(ActivityLifecycleUtils.java:186)] f-->ReaderCfgFragment{9c646c5} (d088ffd2-e5cc-4038-b466-a21015651526) id=0xffffffff} I/PCLog_: [com.naz.label.util.ActivityLifecycleUtils$FLC.onFragmentPaused(ActivityLifecycleUtils.java:178)] f-->SelectTagFragment{3903f2f} (68ef1e25-34ae-410b-bf3c-1c3b56b6fccb) id=0xffffffff} I/PCLog_: [com.naz.label.util.ActivityLifecycleUtils$FLC.onFragmentViewDestroyed(ActivityLifecycleUtils.java:186)] f-->SelectTagFragment{3903f2f} (68ef1e25-34ae-410b-bf3c-1c3b56b6fccb) id=0xffffffff} W/m.uhf.rfid.deme: Accessing hidden method Ldalvik/system/CloseGuard;->get()Ldalvik/system/CloseGuard; (unsupported,core-platform-api, reflection, allowed) Accessing hidden method Ldalvik/system/CloseGuard;->open(Ljava/lang/String;)V (unsupported,core-platform-api, reflection, allowed) Accessing hidden method Ldalvik/system/CloseGuard;->warnIfOpen()V (unsupported,core-platform-api, reflection, allowed) D/CompatibilityChangeReporter: Compat change id reported: 247079863; UID 10123; state: DISABLED D/TrafficStats: tagSocket(103) with statsTag=0xffffffff, statsUid=-1 W/m.uhf.rfid.deme: Accessing hidden method Lcom/android/org/conscrypt/ConscryptEngineSocket;->setUseSessionTickets(Z)V (max-target-q,core-platform-api, reflection, allowed) W/m.uhf.rfid.deme: Accessing hidden method Lcom/android/org/conscrypt/ConscryptEngineSocket;->setHostname(Ljava/lang/String;)V (max-target-q,core-platform-api, reflection, allowed) Accessing hidden method Lcom/android/org/conscrypt/OpenSSLSocketImpl;->setAlpnProtocols([B)V (max-target-q,core-platform-api, reflection, allowed) W/m.uhf.rfid.deme: Accessing hidden method Lcom/android/org/conscrypt/OpenSSLSocketImpl;->getAlpnSelectedProtocol()[B (max-target-q,core-platform-api, reflection, allowed) W/m.uhf.rfid.deme: Got a deoptimization request on un-deoptimizable method java.lang.Object java.lang.Class.newInstance() W/m.uhf.rfid.deme: Got a deoptimization request on un-deoptimizable method java.net.InetAddress[] libcore.io.Linux.android_getaddrinfo(java.lang.String, android.system.StructAddrinfo, int) D/AndroidRuntime: Shutting down VM E/AndroidRuntime: FATAL EXCEPTION: main Process: com.uhf.rfid.deme, PID: 24085 android.os.NetworkOnMainThreadException at android.os.StrictMode$AndroidBlockGuardPolicy.onNetwork(StrictMode.java:1675) at java.net.Inet6AddressImpl.lookupHostByName(Inet6AddressImpl.java:115) at java.net.Inet6AddressImpl.lookupAllHostAddr(Inet6AddressImpl.java:103) at java.net.InetAddress.getAllByName(InetAddress.java:1152) at com.android.okhttp.Dns$1.lookup(Dns.java:41) at com.android.okhttp.internal.http.RouteSelector.resetNextInetSocketAddress(RouteSelector.java:178) at com.android.okhttp.internal.http.RouteSelector.nextProxy(RouteSelector.java:144) at com.android.okhttp.internal.http.RouteSelector.next(RouteSelector.java:86) at com.android.okhttp.internal.http.StreamAllocation.findConnection(StreamAllocation.java:176) at com.android.okhttp.internal.http.StreamAllocation.findHealthyConnection(StreamAllocation.java:128) at com.android.okhttp.internal.http.StreamAllocation.newStream(StreamAllocation.java:97) at com.android.okhttp.internal.http.HttpEngine.connect(HttpEngine.java:289) at com.android.okhttp.internal.http.HttpEngine.sendRequest(HttpEngine.java:232) at com.android.okhttp.internal.huc.HttpURLConnectionImpl.execute(HttpURLConnectionImpl.java:465) at com.android.okhttp.internal.huc.HttpURLConnectionImpl.getResponse(HttpURLConnectionImpl.java:411) at com.android.okhttp.internal.huc.HttpURLConnectionImpl.getResponseCode(HttpURLConnectionImpl.java:542) at com.android.okhttp.internal.huc.DelegatingHttpsURLConnection.getResponseCode(DelegatingHttpsURLConnection.java:106) at com.android.okhttp.internal.huc.HttpsURLConnectionImpl.getResponseCode(HttpsURLConnectionImpl.java:30) at com.naz.label.fragments.home.cow.CowFragment.onViewCreated(CowFragment.java:67) at androidx.fragment.app.FragmentStateManager.createView(FragmentStateManager.java:322) at androidx.fragment.app.FragmentManager.moveToState(FragmentManager.java:1185) at androidx.fragment.app.FragmentManager.moveToState(FragmentManager.java:1354) at androidx.fragment.app.FragmentManager.moveFragmentToExpectedState(FragmentManager.java:1432) at androidx.fragment.app.FragmentManager.moveToState(FragmentManager.java:1495) at androidx.fragment.app.BackStackRecord.executeOps(BackStackRecord.java:447) at androidx.fragment.app.FragmentManager.executeOps(FragmentManager.java:2167) at androidx.fragment.app.FragmentManager.executeOpsTogether(FragmentManager.java:1990) at androidx.fragment.app.FragmentManager.removeRedundantOperationsAndExecute(FragmentManager.java:1945) at androidx.fragment.app.FragmentManager.execPendingActions(FragmentManager.java:1847) at androidx.fragment.app.FragmentManager$4.run(FragmentManager.java:413) at android.os.Handler.handleCallback(Handler.java:1003) at android.os.Handler.dispatchMessage(Handler.java:108) at android.os.Looper.loopOnce(Looper.java:205) at android.os.Looper.loop(Looper.java:294) at android.app.ActivityThread.main(ActivityThread.java:8214) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:552) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1187) E/PCLog_: catchInfo-------------> [com.naz.label.ErrorReport.handleException(ErrorReport.java:51)] android.os.NetworkOnMainThreadException at android.os.StrictMode$AndroidBlockGuardPolicy.onNetwork(StrictMode.java:1675) at java.net.Inet6AddressImpl.lookupHostByName(Inet6AddressImpl.java:115) at java.net.Inet6AddressImpl.lookupAllHostAddr(Inet6AddressImpl.java:103) at java.net.InetAddress.getAllByName(InetAddress.java:1152) at com.android.okhttp.Dns$1.lookup(Dns.java:41) at com.android.okhttp.internal.http.RouteSelector.resetNextInetSocketAddress(RouteSelector.java:178) at com.android.okhttp.internal.http.RouteSelector.nextProxy(RouteSelector.java:144) at com.android.okhttp.internal.http.RouteSelector.next(RouteSelector.java:86) at com.android.okhttp.internal.http.StreamAllocation.findConnection(StreamAllocation.java:176) at com.android.okhttp.internal.http.StreamAllocation.findHealthyConnection(StreamAllocation.java:128) at com.android.okhttp.internal.http.StreamAllocation.newStream(StreamAllocation.java:97) at com.android.okhttp.internal.http.HttpEngine.connect(HttpEngine.java:289) at com.android.okhttp.internal.http.HttpEngine.sendRequest(HttpEngine.java:232) at com.android.okhttp.internal.huc.HttpURLConnectionImpl.execute(HttpURLConnectionImpl.java:465) at com.android.okhttp.internal.huc.HttpURLConnectionImpl.getResponse(HttpURLConnectionImpl.java:411) at com.android.okhttp.internal.huc.HttpURLConnectionImpl.getResponseCode(HttpURLConnectionImpl.java:542) at com.android.okhttp.internal.huc.DelegatingHttpsURLConnection.getResponseCode(DelegatingHttpsURLConnection.java:106) at com.android.okhttp.internal.huc.HttpsURLConnectionImpl.getResponseCode(HttpsURLConnectionImpl.java:30) at com.naz.label.fragments.home.cow.CowFragment.onViewCreated(CowFragment.java:67) at androidx.fragment.app.FragmentStateManager.createView(FragmentStateManager.java:322) at androidx.fragment.app.FragmentManager.moveToState(FragmentManager.java:1185) at androidx.fragment.app.FragmentManager.moveToState(FragmentManager.java:1354) at androidx.fragment.app.FragmentManager.moveFragmentToExpectedState(FragmentManager.java:1432) at androidx.fragment.app.FragmentManager.moveToState(FragmentManager.java:1495) at androidx.fragment.app.BackStackRecord.executeOps(BackStackRecord.java:447) at androidx.fragment.app.FragmentManager.executeOps(FragmentManager.java:2167) at androidx.fragment.app.FragmentManager.executeOpsTogether(FragmentManager.java:1990) at androidx.fragment.app.FragmentManager.removeRedundantOperationsAndExecute(FragmentManager.java:1945) at androidx.fragment.app.FragmentManager.execPendingActions(FragmentManager.java:1847) at androidx.fragment.app.FragmentManager$4.run(FragmentManager.java:413) at android.os.Handler.handleCallback(Handler.java:1003) at android.os.Handler.dispatchMessage(Handler.java:108) at android.os.Looper.loopOnce(Looper.java:205) at android.os.Looper.loop(Looper.java:294) at android.app.ActivityThread.main(ActivityThread.java:8214) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:552) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1187) D/module_manager: Opening value = 0 devNo = 0 D/module_manager: Open success! fd = 112--1 type = 1-0 ret = 1 D/serial_port: close(fd = 113) I/m.uhf.rfid.deme: type=1400 audit(0.0:7570): avc: denied { ioctl } for path="/dev/rfid" dev="tmpfs" ino=651 ioctlcmd=0xf402 scontext=u:r:untrusted_app_27:s0:c123,c256,c512,c768 tcontext=u:object_r:device:s0 tclass=chr_file permissive=1 app=com.uhf.rfid.deme I/PCLog_: [com.naz.label.util.ActivityLifecycleUtils.finishAll(ActivityLifecycleUtils.java:76)] finishAll->[] I/m.uhf.rfid.deme: System.exit called, status: 0 I/AndroidRuntime: VM exiting with result code 0, cleanup skipped. Disconnected from the target VM, address: 'localhost:56646', transport: 'socket' 这个报错代码是在执行到int responseCode = connection.getResponseCode();这句代码发生的，请问这是怎么回事，怎么处理
最新发布
09-27
`时出现`android.os.NetworkOnMainThreadException`错误的原因及处理方法。根据用户提供的引用内容，我们可以总结如下： ### 错误原因分析 1. **主线程网络操作**：在Android中，主线程（UI线程）不允许执行网络...
protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); ipEditText = findViewById(R.id.ipEditText); portEditText = findViewById(R.id.portEditText); Button connectButton = findViewById(R.id.connectButton); connectButton.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { String ip = ipEditText.getText().toString(); int port = Integer.parseInt(portEditText.getText().toString()); new ConnectTask().execute(ip, String.valueOf(port)); } }); Button sendMessageButton = findViewById(R.id.sendMessageButton); sendMessageButton.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { showSendMessageDialog(); } }); }出现E/AndroidRuntime: FATAL EXCEPTION: main Process: com.example.rlswj, PID: 16184 android.os.NetworkOnMainThreadException at android.os.StrictMode$AndroidBlockGuardPolicy.onNetwork(StrictMode.java:1668) at java.net.SocketOutputStream.socketWrite(SocketOutputStream.java:116) at java.net.SocketOutputStream.write(SocketOutputStream.java:161) at sun.nio.cs.StreamEncoder.writeBytes(StreamEncoder.java:221) at sun.nio.cs.StreamEncoder.implFlushBuffer(StreamEncoder.java:291) at sun.nio.cs.StreamEncoder.implFlush(StreamEncoder.java:295) at sun.nio.cs.StreamEncoder.flush(StreamEncoder.java:141) at java.io.OutputStreamWriter.flush(OutputStreamWriter.java:229) at java.io.BufferedWriter.flush(BufferedWriter.java:254) at java.io.PrintWriter.newLine(PrintWriter.java:482) at java.io.PrintWriter.println(PrintWriter.java:629) at java.io.PrintWriter.println(PrintWriter.java:670)
06-01
这个错误信息与你之前提到的错误信息相同，都是由于在主线程中进行了网络操作导致的。你需要将网络操作放到单独的线程或使用异步任务来执行，例如在 `ConnectTask` 中执行网络操作，而不是在主线程中执行。在 `...
Android中关于：at android.os.StrictMode$AndroidBlockGuardPolicy.onNetwork(StrictMode.java:1099) 的问题
Excellence1981的博客
12-07 1324
app网络测试是遇到了一个莫名其妙问题，一直下载不了文件，调试了好久。 最后终于查出来了 只要将原来的 AndroidMainfest中的 <uses-sdk android:minSdkVersion="14" android:targetSdkVersion="21" />改为<uses-sdk android:minSdkVersion="
android下的android.os.StrictMode$AndroidBlockGuardPolicy.onNetwork错误
luotong86的专栏
03-03 1718
今天想在Android下，用httpClient去获取网页的内容，结果在httpClient处报了错，android.os.StrictMode$AndroidBlockGuardPolicy.onNetwork(StrictMode.java:1145), libcore.io.BlockGuardOs.connect(BlockGuardOs.java:84), libcore.io.IoBr...
android错误：at android.os.StrictMode$AndroidBlockGuardPolicy.onNetwork
u013905744的专栏
05-16 2021
Android的官方文档给出了这个类设置的目的： StrictMode是一个系统提供的开发工具，用以检测在开发过程中因为偶然的事故从而造成的系统潜在的问题，进而提示开发者对其进行修复。 StrictMode通常用于捕获磁盘访问或者网络访问中与主进程之间交互产生的问题，因为在主进程中，UI操作和一些动作的执行是最经常用到的，它们之间会产生一定的冲突问题。将磁盘访问和网络访问从主线程中剥离可以使磁
StrictMode.StrictMode$AndroidBlockGuardPolicy.onNetwork
kaiqiangzhang001的专栏
12-20 3733
android3.0以上凡是涉及到网络，下载等耗时操作，都不能在主线程中运行，加上以下代码，可以取消严格限制 StrictMode.ThreadPolicy policy=new StrictMode.ThreadPolicy.Builder().permitAll().build();   StrictMode.setThreadPolicy(policy);
Android用HTTP下载报错“android.os.StrictMode$AndroidBlockGuardPolicy.onNetwork”
HuntCode的专栏
07-22 1469
此错误是因为Android不能在主线程中访问网络导致，可将访问网络代码另启线程运行：Runnable r = new Runnable() { @Override public void run() { // TODO Auto-generated method stub try { URL url = new URL(strURL);
android 严苛模式,android - Error StrictMode$AndroidBlockGuardPolicy.onNetwork - Stack Overflow
weixin_33095355的博客
05-30 286
you have to insert 2 lines "StrictMode" on MainActivity Class, example's below:public class MainActivity extends Activity {@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(s...
StrictMode 详解
01-23 3764
转载地址:http://android-performance.com/android/2014/04/24/android-strict-mode.html StrictMode类是Android 2.3 （API 9）引入的一个工具类，可以用来帮助开发者发现代码中的一些不规范的问题。比如，如果你在UI线程中进行了网络或者磁盘操作，StrictMode就会通过Log（logcat ）或者对
android.os.NetworkOnMainThreadException
十橙
12-09 1272
2014-10-29 更新内容 代码中有网络请求，程序执行的时候LogCat报错如下： android.os.NetworkOnMainThreadException at android.os.StrictMode$AndroidBlockGuardPolicy.onNetwork 有趣的是我偶然发现当我按照LogCat给出的android.os.NetworkOnMainT
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