我的 android xml 解析应用程序意外停止..这是 logcat 中的错误列表:
10-18 17:26:12.965: ERROR/Zygote(33): setreuid() failed. errno: 2
10-18 17:26:12.965: ERROR/Zygote(33): setreuid() failed. errno: 17
10-18 17:26:12.965: ERROR/BatteryService(34): usbOnlinePath not found
10-18 17:26:12.965: ERROR/BatteryService(34): batteryVoltagePath not found
10-18 17:26:12.965: ERROR/BatteryService(34): batteryTemperaturePath not found
10-18 17:26:12.965: ERROR/SurfaceFlinger(34): Couldn't open /sys/power/wait_for_fb_sleep or /sys/power/wait_for_fb_wake
10-18 17:26:53.986: ERROR/EventHub(34): could not get driver version for /dev/input/mouse0, Not a typewriter
10-18 17:26:53.986: ERROR/EventHub(34): could not get driver version for /dev/input/mice, Not a typewriter
10-18 17:26:54.584: ERROR/System(34): Failure starting core service
10-18 17:26:54.584: ERROR/System(34): java.lang.SecurityException
10-18 17:26:54.584: ERROR/System(34): at android.os.BinderProxy.transact(Native Method)
10-18 17:26:54.584: ERROR/System(34): at android.os.ServiceManagerProxy.addService(ServiceManagerNative.java:146)
10-18 17:26:54.584: ERROR/System(34): at android.os.ServiceManager.addService(ServiceManager.java:72)
10-18 17:26:54.584: ERROR/System(34): at com.android.server.ServerThread.run(SystemServer.java:184)
10-18 17:26:56.766: ERROR/SoundPool(34): error loading /system/media/audio/ui/Effect_Tick.ogg
10-18 17:26:56.774: ERROR/SoundPool(34): error loading /system/media/audio/ui/KeypressStandard.ogg
10-18 17:26:56.774: ERROR/SoundPool(34): error loading /system/media/audio/ui/KeypressSpacebar.ogg
10-18 17:26:56.774: ERROR/SoundPool(34): error loading /system/media/audio/ui/KeypressDelete.ogg
10-18 17:26:56.784: ERROR/SoundPool(34): error loading /system/media/audio/ui/KeypressReturn.ogg
10-18 17:27:01.414: ERROR/ThrottleService(34): Could not open GPS configuration file /etc/gps.conf
10-18 17:27:04.125: ERROR/logwrapper(144): executing /system/bin/tc failed: No such file or directory
10-18 17:27:04.295: ERROR/logwrapper(145): executing /system/bin/tc failed: No such file or directory
10-18 17:27:04.456: ERROR/logwrapper(146): executing /system/bin/tc failed: No such file or directory
10-18 17:27:35.326: ERROR/HierarchicalStateMachine(34): TetherMaster - unhandledMessage: msg.what=3
10-18 17:29:27.438: ERROR/AndroidRuntime(386): FATAL EXCEPTION: main
10-18 17:29:27.438: ERROR/AndroidRuntime(386): java.lang.RuntimeException: Unable to start activity ComponentInfo{BasicWebService.com/BasicWebService.com.BasicWebServiceActivity}: java.lang.ClassCastException: org.apache.harmony.xml.dom.ElementImpl
10-18 17:29:27.438: ERROR/AndroidRuntime(386): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2663)
10-18 17:29:27.438: ERROR/AndroidRuntime(386): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2679)
10-18 17:29:27.438: ERROR/AndroidRuntime(386): at android.app.ActivityThread.access$2300(ActivityThread.java:125)
10-18 17:29:27.438: ERROR/AndroidRuntime(386): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2033)
10-18 17:29:27.438: ERROR/AndroidRuntime(386): at android.os.Handler.dispatchMessage(Handler.java:99)
10-18 17:29:27.438: ERROR/AndroidRuntime(386): at android.os.Looper.loop(Looper.java:123)
10-18 17:29:27.438: ERROR/AndroidRuntime(386): at android.app.ActivityThread.main(ActivityThread.java:4627)
10-18 17:29:27.438: ERROR/AndroidRuntime(386): at java.lang.reflect.Method.invokeNative(Native Method)
10-18 17:29:27.438: ERROR/AndroidRuntime(386): at java.lang.reflect.Method.invoke(Method.java:521)
10-18 17:29:27.438: ERROR/AndroidRuntime(386): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
10-18 17:29:27.438: ERROR/AndroidRuntime(386): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
10-18 17:29:27.438: ERROR/AndroidRuntime(386): at dalvik.system.NativeStart.main(Native Method)
10-18 17:29:27.438: ERROR/AndroidRuntime(386): Caused by: java.lang.ClassCastException: org.apache.harmony.xml.dom.ElementImpl
10-18 17:29:27.438: ERROR/AndroidRuntime(386): at BasicWebService.com.BasicWebServiceActivity.getListFromXml(BasicWebServiceActivity.java:50)
10-18 17:29:27.438: ERROR/AndroidRuntime(386): at BasicWebService.com.BasicWebServiceActivity.onCreate(BasicWebServiceActivity.java:34)
10-18 17:29:27.438: ERROR/AndroidRuntime(386): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
10-18 17:29:27.438: ERROR/AndroidRuntime(386): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2627)
10-18 17:29:27.438: ERROR/AndroidRuntime(386): ... 11 more
10-18 18:31:12.029: ERROR/AndroidRuntime(470): FATAL EXCEPTION: main
10-18 18:31:12.029: ERROR/AndroidRuntime(470): java.lang.RuntimeException: Unable to start activity ComponentInfo{BasicWebService.com/BasicWebService.com.BasicWebServiceActivity}: java.lang.ClassCastException: org.apache.harmony.xml.dom.ElementImpl
10-18 18:31:12.029: ERROR/AndroidRuntime(470): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2663)
10-18 18:31:12.029: ERROR/AndroidRuntime(470): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2679)
10-18 18:31:12.029: ERROR/AndroidRuntime(470): at android.app.ActivityThread.access$2300(ActivityThread.java:125)
10-18 18:31:12.029: ERROR/AndroidRuntime(470): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2033)
10-18 18:31:12.029: ERROR/AndroidRuntime(470): at android.os.Handler.dispatchMessage(Handler.java:99)
10-18 18:31:12.029: ERROR/AndroidRuntime(470): at android.os.Looper.loop(Looper.java:123)
10-18 18:31:12.029: ERROR/AndroidRuntime(470): at android.app.ActivityThread.main(ActivityThread.java:4627)
10-18 18:31:12.029: ERROR/AndroidRuntime(470): at java.lang.reflect.Method.invokeNative(Native Method)
10-18 18:31:12.029: ERROR/AndroidRuntime(470): at java.lang.reflect.Method.invoke(Method.java:521)
10-18 18:31:12.029: ERROR/AndroidRuntime(470): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
10-18 18:31:12.029: ERROR/AndroidRuntime(470): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
10-18 18:31:12.029: ERROR/AndroidRuntime(470): at dalvik.system.NativeStart.main(Native Method)
10-18 18:31:12.029: ERROR/AndroidRuntime(470): Caused by: java.lang.ClassCastException: org.apache.harmony.xml.dom.ElementImpl
10-18 18:31:12.029: ERROR/AndroidRuntime(470): at BasicWebService.com.BasicWebServiceActivity.getListFromXml(BasicWebServiceActivity.java:49)
10-18 18:31:12.029: ERROR/AndroidRuntime(470): at BasicWebService.com.BasicWebServiceActivity.onCreate(BasicWebServiceActivity.java:33)
10-18 18:31:12.029: ERROR/AndroidRuntime(470): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
10-18 18:31:12.029: ERROR/AndroidRuntime(470): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2627)
10-18 18:31:12.029: ERROR/AndroidRuntime(470): ... 11 more
10-18 18:31:32.038: ERROR/AndroidRuntime(504): FATAL EXCEPTION: main
10-18 18:31:32.038: ERROR/AndroidRuntime(504): java.lang.RuntimeException: Unable to start activity ComponentInfo{BasicWebService.com/BasicWebService.com.BasicWebServiceActivity}: java.lang.ClassCastException: org.apache.harmony.xml.dom.ElementImpl
10-18 18:31:32.038: ERROR/AndroidRuntime(504): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2663)
10-18 18:31:32.038: ERROR/AndroidRuntime(504): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2679)
10-18 18:31:32.038: ERROR/AndroidRuntime(504): at android.app.ActivityThread.access$2300(ActivityThread.java:125)
10-18 18:31:32.038: ERROR/AndroidRuntime(504): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2033)
10-18 18:31:32.038: ERROR/AndroidRuntime(504): at android.os.Handler.dispatchMessage(Handler.java:99)
10-18 18:31:32.038: ERROR/AndroidRuntime(504): at android.os.Looper.loop(Looper.java:123)
10-18 18:31:32.038: ERROR/AndroidRuntime(504): at android.app.ActivityThread.main(ActivityThread.java:4627)
10-18 18:31:32.038: ERROR/AndroidRuntime(504): at java.lang.reflect.Method.invokeNative(Native Method)
10-18 18:31:32.038: ERROR/AndroidRuntime(504): at java.lang.reflect.Method.invoke(Method.java:521)
10-18 18:31:32.038: ERROR/AndroidRuntime(504): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
10-18 18:31:32.038: ERROR/AndroidRuntime(504): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
10-18 18:31:32.038: ERROR/AndroidRuntime(504): at dalvik.system.NativeStart.main(Native Method)
10-18 18:31:32.038: ERROR/AndroidRuntime(504): Caused by: java.lang.ClassCastException: org.apache.harmony.xml.dom.ElementImpl
10-18 18:31:32.038: ERROR/AndroidRuntime(504): at BasicWebService.com.BasicWebServiceActivity.getListFromXml(BasicWebServiceActivity.java:49)
10-18 18:31:32.038: ERROR/AndroidRuntime(504): at BasicWebService.com.BasicWebServiceActivity.onCreate(BasicWebServiceActivity.java:33)
10-18 18:31:32.038: ERROR/AndroidRuntime(504): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
10-18 18:31:32.038: ERROR/AndroidRuntime(504): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2627)
10-18 18:31:32.038: ERROR/AndroidRuntime(504): ... 11 more
10-18 18:32:04.459: ERROR/DefContainer(196): Couldn't copy file: /data/local/tmp/basicWebService.apk
10-18 18:32:05.078: ERROR/AndroidRuntime(558): FATAL EXCEPTION: main
10-18 18:32:05.078: ERROR/AndroidRuntime(558): java.lang.RuntimeException: Unable to start activity ComponentInfo{BasicWebService.com/BasicWebService.com.BasicWebServiceActivity}: java.lang.ClassCastException: org.apache.harmony.xml.dom.ElementImpl
10-18 18:32:05.078: ERROR/AndroidRuntime(558): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2663)
10-18 18:32:05.078: ERROR/AndroidRuntime(558): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2679)
10-18 18:32:05.078: ERROR/AndroidRuntime(558): at android.app.ActivityThread.access$2300(ActivityThread.java:125)
10-18 18:32:05.078: ERROR/AndroidRuntime(558): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2033)
10-18 18:32:05.078: ERROR/AndroidRuntime(558): at android.os.Handler.dispatchMessage(Handler.java:99)
10-18 18:32:05.078: ERROR/AndroidRuntime(558): at android.os.Looper.loop(Looper.java:123)
10-18 18:32:05.078: ERROR/AndroidRuntime(558): at android.app.ActivityThread.main(ActivityThread.java:4627)
10-18 18:32:05.078: ERROR/AndroidRuntime(558): at java.lang.reflect.Method.invokeNative(Native Method)
10-18 18:32:05.078: ERROR/AndroidRuntime(558): at java.lang.reflect.Method.invoke(Method.java:521)
10-18 18:32:05.078: ERROR/AndroidRuntime(558): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
10-18 18:32:05.078: ERROR/AndroidRuntime(558): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
10-18 18:32:05.078: ERROR/AndroidRuntime(558): at dalvik.system.NativeStart.main(Native Method)
10-18 18:32:05.078: ERROR/AndroidRuntime(558): Caused by: java.lang.ClassCastException: org.apache.harmony.xml.dom.ElementImpl
10-18 18:32:05.078: ERROR/AndroidRuntime(558): at BasicWebService.com.BasicWebServiceActivity.getListFromXml(BasicWebServiceActivity.java:49)
10-18 18:32:05.078: ERROR/AndroidRuntime(558): at BasicWebService.com.BasicWebServiceActivity.onCreate(BasicWebServiceActivity.java:33)
10-18 18:32:05.078: ERROR/AndroidRuntime(558): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
10-18 18:32:05.078: ERROR/AndroidRuntime(558): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2627)
10-18 18:32:05.078: ERROR/AndroidRuntime(558): ... 11 more
10-18 18:33:02.668: ERROR/AndroidRuntime(584): FATAL EXCEPTION: main
10-18 18:33:02.668: ERROR/AndroidRuntime(584): java.lang.RuntimeException: Unable to start activity ComponentInfo{BasicWebService.com/BasicWebService.com.BasicWebServiceActivity}: java.lang.ClassCastException: org.apache.harmony.xml.dom.ElementImpl
10-18 18:33:02.668: ERROR/AndroidRuntime(584): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2663)
10-18 18:33:02.668: ERROR/AndroidRuntime(584): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2679)
10-18 18:33:02.668: ERROR/AndroidRuntime(584): at android.app.ActivityThread.access$2300(ActivityThread.java:125)
10-18 18:33:02.668: ERROR/AndroidRuntime(584): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2033)
10-18 18:33:02.668: ERROR/AndroidRuntime(584): at android.os.Handler.dispatchMessage(Handler.java:99)
10-18 18:33:02.668: ERROR/AndroidRuntime(584): at android.os.Looper.loop(Looper.java:123)
10-18 18:33:02.668: ERROR/AndroidRuntime(584): at android.app.ActivityThread.main(ActivityThread.java:4627)
10-18 18:33:02.668: ERROR/AndroidRuntime(584): at java.lang.reflect.Method.invokeNative(Native Method)
10-18 18:33:02.668: ERROR/AndroidRuntime(584): at java.lang.reflect.Method.invoke(Method.java:521)
10-18 18:33:02.668: ERROR/AndroidRuntime(584): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
10-18 18:33:02.668: ERROR/AndroidRuntime(584): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
10-18 18:33:02.668: ERROR/AndroidRuntime(584): at dalvik.system.NativeStart.main(Native Method)
10-18 18:33:02.668: ERROR/AndroidRuntime(584): Caused by: java.lang.ClassCastException: org.apache.harmony.xml.dom.ElementImpl
10-18 18:33:02.668: ERROR/AndroidRuntime(584): at BasicWebService.com.BasicWebServiceActivity.getListFromXml(BasicWebServiceActivity.java:49)
10-18 18:33:02.668: ERROR/AndroidRuntime(584): at BasicWebService.com.BasicWebServiceActivity.onCreate(BasicWebServiceActivity.java:33)
10-18 18:33:02.668: ERROR/AndroidRuntime(584): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
10-18 18:33:02.668: ERROR/AndroidRuntime(584): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2627)
10-18 18:33:02.668: ERROR/AndroidRuntime(584): ... 11 more
我在 AndroidManifest.xml 文件中添加了 INTERNET 权限..我还添加了 ACCESS_FINE_LOCATION 和 ACCESS_COARSE_LOCATION 权限..但没有更改..我的代码:
package BasicWebService.com;
import java.io.IOException;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.ArrayList;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import org.w3c.dom.Document;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.w3c.dom.Element;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;
import android.app.Activity;
import android.os.Bundle;
import android.widget.ArrayAdapter;
import android.widget.ListView;
public class BasicWebServiceActivity extends Activity {
/** Called when the activity is first created. */
private ListView listView_xml;
private ArrayList<String> xmlList = new ArrayList<String>();
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
listView_xml = (ListView) findViewById(R.id.listView_xml);
xmlList=getListFromXml();
}
private ArrayList<String> getListFromXml() {
// TODO Auto-generated method stub
ArrayList<String> list=new ArrayList<String>();
try {
DocumentBuilder builder=DocumentBuilderFactory.newInstance().newDocumentBuilder();
try {
URL u=new URL("http://www.w3schools.com/aspnet/countries.xml");
try {
Document doc=builder.parse(new InputSource(u.openStream()));
doc.getDocumentElement().normalize();
NodeList nodeListCountry=doc.getElementsByTagName("country");
for(int i=0;i<nodeListCountry.getLength();i++)
{
Element elementMain=(Element) nodeListCountry.item(i);
NodeList nodeListText=( (Document) elementMain).getElementsByTagName("text");
Element elementText=(Element) nodeListText.item(0);
NodeList nodeListValue=( (Document) elementMain).getElementsByTagName("value");
Element elementValue=(Element) nodeListValue.item(0);
list.add(( (Node) elementText).getChildNodes().item(0).getNodeValue()+"--->"+((Node) elementValue).getChildNodes().item(0).getNodeValue());
}
} catch (SAXException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
} catch (MalformedURLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
} catch (ParserConfigurationException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return list;
}
@Override
protected void onStart() {
// TODO Auto-generated method stub
super.onStart();
ArrayAdapter<String> arrayAdapt=new ArrayAdapter<String>(getApplicationContext(),android.R.layout.simple_list_item_multiple_choice,xmlList);
listView_xml.setChoiceMode(ListView.CHOICE_MODE_MULTIPLE);
listView_xml.setAdapter(arrayAdapt);
}
}
我的main.xml:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
>
<ListView
android:id="@+id/listView_xml"
android:layout_height="wrap_content"
android:layout_width="match_parent">
</ListView>
</LinearLayout>
和我的 AndroidManifest.xml:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="BasicWebService.com"
android:versionCode="1"
android:versionName="1.0">
<uses-sdk android:minSdkVersion="8" />
<uses-permission android:name="android.permission.INTERNET"></uses-permission>
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<application android:icon="@drawable/icon" android:label="@string/app_name">
<activity android:name=".BasicWebServiceActivity"
android:label="@string/app_name">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
请帮忙..
最佳答案
堆栈跟踪充满了 BasicWebServiceActivity.java 文件第 49 行抛出的 ClassCastExceptions。跟踪表明有问题的行位于 getListFromXML() 方法中。我将您的代码复制到文本编辑器中，对我来说，第 49 行是:
NodeList nodeListText=( (Document) elementMain).getElementsByTagName("text");
在这里，您将元素转换为文档，这可能会导致问题
关于java - 我的 android xml 解析应用程序在 android 模拟器中意外停止，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/7812503/