我是Android的新手,我遇到了SAXParser的问题 我有一个XML文件,我想将此文件传递给ArrayList,但我无法读取该文件......
这是我的代码
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.index);
FileParserSax saxParcer = new FileParserSax(getFilesDir().getAbsoluteFile() + "/datos.xml");
ArrayList<Meansurement> procesos = saxParcer.parse();
System.out.println("aqui");
}
我的函数解析器是这个..
public ArrayList<Meansurement> parse(){
SAXParserFactory factory= SAXParserFactory.newInstance();
try{
SAXParser parser= factory.newSAXParser();
SaxMeansurementHandler handler = new SaxMeansurementHandler();
parser.parse(new File(ruta), handler);
return handler.getMeansurements();
}catch (Exception e) {
throw new RuntimeException(e);
}
}
但是当我到达这行parser.parse(new File(ruta),handler);失败!!!
这是错误
04-23 00:18:13.308: ERROR/AndroidRuntime(2533): Uncaught handler: thread main exiting due to uncaught exception
04-23 00:18:13.559: ERROR/AndroidRuntime(2533): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.cronox/com.cronox.Index}: java.lang.RuntimeException: java.io.IOException: Couldn't open /data/data/com.cronox/files/datos.xml
04-23 00:18:13.559: ERROR/AndroidRuntime(2533): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2401)
04-23 00:18:13.559: ERROR/AndroidRuntime(2533): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2417)
04-23 00:18:13.559: ERROR/AndroidRuntime(2533): at android.app.ActivityThread.access$2100(ActivityThread.java:116)
04-23 00:18:13.559: ERROR/AndroidRuntime(2533): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1794)
04-23 00:18:13.559: ERROR/AndroidRuntime(2533): at android.os.Handler.dispatchMessage(Handler.java:99)
04-23 00:18:13.559: ERROR/AndroidRuntime(2533): at android.os.Looper.loop(Looper.java:123)
04-23 00:18:13.559: ERROR/AndroidRuntime(2533): at android.app.ActivityThread.main(ActivityThread.java:4203)
04-23 00:18:13.559: ERROR/AndroidRuntime(2533): at java.lang.reflect.Method.invokeNative(Native Method)
04-23 00:18:13.559: ERROR/AndroidRuntime(2533): at java.lang.reflect.Method.invoke(Method.java:521)
04-23 00:18:13.559: ERROR/AndroidRuntime(2533): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:791)
04-23 00:18:13.559: ERROR/AndroidRuntime(2533): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:549)
04-23 00:18:13.559: ERROR/AndroidRuntime(2533): at dalvik.system.NativeStart.main(Native Method)
04-23 00:18:13.559: ERROR/AndroidRuntime(2533): Caused by: java.lang.RuntimeException: java.io.IOException: Couldn't open /data/data/com.cronox/files/datos.xml
04-23 00:18:13.559: ERROR/AndroidRuntime(2533): at com.cronox.FileParserSax.parse(FileParserSax.java:25)
04-23 00:18:13.559: ERROR/AndroidRuntime(2533): at com.cronox.Index.onCreate(Index.java:35)
04-23 00:18:13.559: ERROR/AndroidRuntime(2533): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1123)
04-23 00:18:13.559: ERROR/AndroidRuntime(2533): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2364)
04-23 00:18:13.559: ERROR/AndroidRuntime(2533): ... 11 more
04-23 00:18:13.559: ERROR/AndroidRuntime(2533): Caused by: java.io.IOException: Couldn't open /data/data/com.cronox/files/datos.xml
04-23 00:18:13.559: ERROR/AndroidRuntime(2533): at org.apache.harmony.xml.ExpatParser.openUrl(ExpatParser.java:744)
04-23 00:18:13.559: ERROR/AndroidRuntime(2533): at org.apache.harmony.xml.ExpatReader.parse(ExpatReader.java:300)
04-23 00:18:13.559: ERROR/AndroidRuntime(2533): at javax.xml.parsers.SAXParser.parse(SAXParser.java:361)
04-23 00:18:13.559: ERROR/AndroidRuntime(2533): at javax.xml.parsers.SAXParser.parse(SAXParser.java:303)
04-23 00:18:13.559: ERROR/AndroidRuntime(2533): at com.cronox.FileParserSax.parse(FileParserSax.java:22)
04-23 00:18:13.559: ERROR/AndroidRuntime(2533): ... 14 more
04-23 00:18:13.559: ERROR/AndroidRuntime(2533): Caused by: java.net.MalformedURLException: Protocol not found: /data/data/com.cronox/files/datos.xml
04-23 00:18:13.559: ERROR/AndroidRuntime(2533): at java.net.URL.<init>(URL.java:285)
04-23 00:18:13.559: ERROR/AndroidRuntime(2533): at java.net.URL.<init>(URL.java:164)
04-23 00:18:13.559: ERROR/AndroidRuntime(2533): at org.apache.harmony.xml.ExpatParser.openUrl(ExpatParser.java:737)
04-23 00:18:13.559: ERROR/AndroidRuntime(2533): ... 18 more
答案 0 :(得分:3)
使用file:///data/data/com.cronox/files/datos.xml。像:
FileParserSax saxParcer = new FileParserSax("file://" + getFilesDir().getAbsoluteFile() + "/datos.xml");
Ammm我认为你应该使用InputStream而不是String构造函数。