获得；processXXXX没有响应；尝试在android上下载文件时_Android_Download_Playlist

获得；processXXXX没有响应；尝试在android上下载文件时

android download

获得；processXXXX没有响应；尝试在android上下载文件时,android,download,playlist,Android,Download,Playlist,我尝试下载一个文件并将其保存在内部存储器中。这是我的密码： public class PLSParser { public String pls_path; public String pls_content; public PLSParser () { pls_path = "http://rhemafm.serverroom.us:5858/listen.pls"; } public void getPLSFile () { try { URL url

我尝试下载一个文件并将其保存在内部存储器中。这是我的密码：

public class PLSParser {

public String pls_path;
public String pls_content;

public PLSParser () {
    pls_path = "http://rhemafm.serverroom.us:5858/listen.pls";
}

public void getPLSFile () {
    try {
        URL url = new URL (pls_path);
        HttpURLConnection con = (HttpURLConnection) url.openConnection();

        con.setRequestMethod("GET");
        con.setDoOutput(true);
        con.connect();

        File cacheDir = Environment.getDataDirectory();
        File storage = new File (cacheDir, "temp.dat");

        InputStream in = new BufferedInputStream (url.openStream());
        OutputStream out = new FileOutputStream(storage);

        int downloaded = 0;
        byte[] buff = new byte[1024];
        int buffLength = 0;

        while ((buffLength = in.read(buff)) != -1) {
            out.write(buff, 0, buffLength);
            downloaded += buffLength;
        }

        out.flush();
        out.close();
        in.close();

    } catch (IOException e) {
        e.printStackTrace();
    }
 }
}

问题是，它总是会出错。我犯了什么错误

编辑：

public class PLSParser {

    PLSParser () {}

    void getFile() {
        String url = "http://rhemafm.serverroom.us:5858/listen.pls";
        new DownloadFileAsync().execute(url);
    }

    class DownloadFileAsync extends AsyncTask<String, String, String> {

        @Override
        protected void onPreExecute() {
            super.onPreExecute();
        }

        @Override
        protected String doInBackground(String... aurl) {
            int count;

            try {
                URL url = new URL(aurl[0]);
                URLConnection conexion = url.openConnection();
                conexion.connect();

                int lengthOfFile = conexion.getContentLength();

                InputStream input = new BufferedInputStream(url.openStream());
                OutputStream output = new FileOutputStream("/temporary_pls.pls");

                byte data[] = new byte[lengthOfFile];
                long total = 0;

                while ((count = input.read(data)) != -1) {
                    total += count;
                    output.write(data, 0, count);
                }

                output.flush();
                output.close();
                input.close();
            } catch (Exception e) {}
            return null;

        }
    }
}

07-16 09:19:23.260: WARN/dalvikvm(717): threadid=3: thread exiting with uncaught exception (group=0x4001aa28)
07-16 09:19:23.260: ERROR/AndroidRuntime(717): Uncaught handler: thread main exiting due to uncaught exception
07-16 09:19:23.299: ERROR/AndroidRuntime(717): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.radio.streamingradio/com.radio.streamingradio.Tune_in}: java.lang.RuntimeException: Binary XML file line #50: You must supply a layout_width attribute.
07-16 09:19:23.299: ERROR/AndroidRuntime(717):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2401)
07-16 09:19:23.299: ERROR/AndroidRuntime(717):     at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2417)
07-16 09:19:23.299: ERROR/AndroidRuntime(717):     at android.app.ActivityThread.access$2100(ActivityThread.java:116)
07-16 09:19:23.299: ERROR/AndroidRuntime(717):     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1794)
07-16 09:19:23.299: ERROR/AndroidRuntime(717):     at android.os.Handler.dispatchMessage(Handler.java:99)
07-16 09:19:23.299: ERROR/AndroidRuntime(717):     at android.os.Looper.loop(Looper.java:123)
07-16 09:19:23.299: ERROR/AndroidRuntime(717):     at android.app.ActivityThread.main(ActivityThread.java:4203)
07-16 09:19:23.299: ERROR/AndroidRuntime(717):     at java.lang.reflect.Method.invokeNative(Native Method)
07-16 09:19:23.299: ERROR/AndroidRuntime(717):     at java.lang.reflect.Method.invoke(Method.java:521)
07-16 09:19:23.299: ERROR/AndroidRuntime(717):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:791)
07-16 09:19:23.299: ERROR/AndroidRuntime(717):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:549)
07-16 09:19:23.299: ERROR/AndroidRuntime(717):     at dalvik.system.NativeStart.main(Native Method)
07-16 09:19:23.299: ERROR/AndroidRuntime(717): Caused by: java.lang.RuntimeException: Binary XML file line #50: You must supply a layout_width attribute.
07-16 09:19:23.299: ERROR/AndroidRuntime(717):     at android.content.res.TypedArray.getLayoutDimension(TypedArray.java:438)
07-16 09:19:23.299: ERROR/AndroidRuntime(717):     at android.view.ViewGroup$LayoutParams.setBaseAttributes(ViewGroup.java:3433)
07-16 09:19:23.299: ERROR/AndroidRuntime(717):     at android.view.ViewGroup$MarginLayoutParams.<init>(ViewGroup.java:3513)
07-16 09:19:23.299: ERROR/AndroidRuntime(717):     at android.widget.LinearLayout$LayoutParams.<init>(LinearLayout.java:1265)
07-16 09:19:23.299: ERROR/AndroidRuntime(717):     at android.widget.LinearLayout.generateLayoutParams(LinearLayout.java:1191)
07-16 09:19:23.299: ERROR/AndroidRuntime(717):     at android.widget.LinearLayout.generateLayoutParams(LinearLayout.java:45)
07-16 09:19:23.299: ERROR/AndroidRuntime(717):     at android.view.LayoutInflater.rInflate(LayoutInflater.java:619)
07-16 09:19:23.299: ERROR/AndroidRuntime(717):     at android.view.LayoutInflater.inflate(LayoutInflater.java:407)
07-16 09:19:23.299: ERROR/AndroidRuntime(717):     at android.view.LayoutInflater.inflate(LayoutInflater.java:320)
07-16 09:19:23.299: ERROR/AndroidRuntime(717):     at android.view.LayoutInflater.inflate(LayoutInflater.java:276)
07-16 09:19:23.299: ERROR/AndroidRuntime(717):     at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:313)
07-16 09:19:23.299: ERROR/AndroidRuntime(717):     at android.app.Activity.setContentView(Activity.java:1620)
07-16 09:19:23.299: ERROR/AndroidRuntime(717):     at com.radio.streamingradio.Tune_in.onCreate(Tune_in.java:24)
07-16 09:19:23.299: ERROR/AndroidRuntime(717):     at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1123)
07-16 09:19:23.299: ERROR/AndroidRuntime(717):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2364)

公共类扩频器{
PLSParser（）{}
void getFile（）{
字符串url=”http://rhemafm.serverroom.us:5858/listen.pls";
新建DownloadFileAsync（）.execute（url）；
}
类DownloadFileAsync扩展AsyncTask{
@凌驾
受保护的void onPreExecute（）{
super.onPreExecute（）；
}
@凌驾
受保护的字符串背景（字符串…aurl）{
整数计数；
试一试{
URL=新URL（aurl[0]）；
URLConnection conexion=url.openConnection（）；
conexion.connect（）；
int lengthOfFile=conexion.getContentLength（）；
InputStream输入=新的BufferedInputStream（url.openStream（））；
OutputStream输出=新文件OutputStream（“/temporary_pls.pls”）；
字节数据[]=新字节[lengthOfFile]；
长总计=0；
而（（计数=输入。读取（数据））！=-1）{
总数+=计数；
输出.写入（数据，0，计数）；
}
output.flush（）；
output.close（）；
input.close（）；
}捕获（例外e）{}
返回null；
}
}
}

此代码仍有错误。。。我该怎么办

编辑2:

public class PLSParser {

    PLSParser () {}

    void getFile() {
        String url = "http://rhemafm.serverroom.us:5858/listen.pls";
        new DownloadFileAsync().execute(url);
    }

    class DownloadFileAsync extends AsyncTask<String, String, String> {

        @Override
        protected void onPreExecute() {
            super.onPreExecute();
        }

        @Override
        protected String doInBackground(String... aurl) {
            int count;

            try {
                URL url = new URL(aurl[0]);
                URLConnection conexion = url.openConnection();
                conexion.connect();

                int lengthOfFile = conexion.getContentLength();

                InputStream input = new BufferedInputStream(url.openStream());
                OutputStream output = new FileOutputStream("/temporary_pls.pls");

                byte data[] = new byte[lengthOfFile];
                long total = 0;

                while ((count = input.read(data)) != -1) {
                    total += count;
                    output.write(data, 0, count);
                }

                output.flush();
                output.close();
                input.close();
            } catch (Exception e) {}
            return null;

        }
    }
}

07-16 09:19:23.260: WARN/dalvikvm(717): threadid=3: thread exiting with uncaught exception (group=0x4001aa28)
07-16 09:19:23.260: ERROR/AndroidRuntime(717): Uncaught handler: thread main exiting due to uncaught exception
07-16 09:19:23.299: ERROR/AndroidRuntime(717): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.radio.streamingradio/com.radio.streamingradio.Tune_in}: java.lang.RuntimeException: Binary XML file line #50: You must supply a layout_width attribute.
07-16 09:19:23.299: ERROR/AndroidRuntime(717):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2401)
07-16 09:19:23.299: ERROR/AndroidRuntime(717):     at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2417)
07-16 09:19:23.299: ERROR/AndroidRuntime(717):     at android.app.ActivityThread.access$2100(ActivityThread.java:116)
07-16 09:19:23.299: ERROR/AndroidRuntime(717):     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1794)
07-16 09:19:23.299: ERROR/AndroidRuntime(717):     at android.os.Handler.dispatchMessage(Handler.java:99)
07-16 09:19:23.299: ERROR/AndroidRuntime(717):     at android.os.Looper.loop(Looper.java:123)
07-16 09:19:23.299: ERROR/AndroidRuntime(717):     at android.app.ActivityThread.main(ActivityThread.java:4203)
07-16 09:19:23.299: ERROR/AndroidRuntime(717):     at java.lang.reflect.Method.invokeNative(Native Method)
07-16 09:19:23.299: ERROR/AndroidRuntime(717):     at java.lang.reflect.Method.invoke(Method.java:521)
07-16 09:19:23.299: ERROR/AndroidRuntime(717):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:791)
07-16 09:19:23.299: ERROR/AndroidRuntime(717):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:549)
07-16 09:19:23.299: ERROR/AndroidRuntime(717):     at dalvik.system.NativeStart.main(Native Method)
07-16 09:19:23.299: ERROR/AndroidRuntime(717): Caused by: java.lang.RuntimeException: Binary XML file line #50: You must supply a layout_width attribute.
07-16 09:19:23.299: ERROR/AndroidRuntime(717):     at android.content.res.TypedArray.getLayoutDimension(TypedArray.java:438)
07-16 09:19:23.299: ERROR/AndroidRuntime(717):     at android.view.ViewGroup$LayoutParams.setBaseAttributes(ViewGroup.java:3433)
07-16 09:19:23.299: ERROR/AndroidRuntime(717):     at android.view.ViewGroup$MarginLayoutParams.<init>(ViewGroup.java:3513)
07-16 09:19:23.299: ERROR/AndroidRuntime(717):     at android.widget.LinearLayout$LayoutParams.<init>(LinearLayout.java:1265)
07-16 09:19:23.299: ERROR/AndroidRuntime(717):     at android.widget.LinearLayout.generateLayoutParams(LinearLayout.java:1191)
07-16 09:19:23.299: ERROR/AndroidRuntime(717):     at android.widget.LinearLayout.generateLayoutParams(LinearLayout.java:45)
07-16 09:19:23.299: ERROR/AndroidRuntime(717):     at android.view.LayoutInflater.rInflate(LayoutInflater.java:619)
07-16 09:19:23.299: ERROR/AndroidRuntime(717):     at android.view.LayoutInflater.inflate(LayoutInflater.java:407)
07-16 09:19:23.299: ERROR/AndroidRuntime(717):     at android.view.LayoutInflater.inflate(LayoutInflater.java:320)
07-16 09:19:23.299: ERROR/AndroidRuntime(717):     at android.view.LayoutInflater.inflate(LayoutInflater.java:276)
07-16 09:19:23.299: ERROR/AndroidRuntime(717):     at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:313)
07-16 09:19:23.299: ERROR/AndroidRuntime(717):     at android.app.Activity.setContentView(Activity.java:1620)
07-16 09:19:23.299: ERROR/AndroidRuntime(717):     at com.radio.streamingradio.Tune_in.onCreate(Tune_in.java:24)
07-16 09:19:23.299: ERROR/AndroidRuntime(717):     at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1123)
07-16 09:19:23.299: ERROR/AndroidRuntime(717):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2364)

07-16 09:19:23.260:WARN/dalvikvm（717）：threadid=3:线程以未捕获异常退出（组=0x4001aa28）
07-16 09:19:23.260:错误/AndroidRuntime（717）：未捕获处理程序：由于未捕获异常而退出主线程
07-16 09:19:23.299:错误/AndroidRuntime（717）：java.lang.RuntimeException:无法启动活动组件信息{com.radio.streamingradio/com.radio.streamingradio.Tune_in}:java.lang.RuntimeException:二进制XML文件行#50:必须提供布局宽度属性。
07-16 09:19:23.299:ERROR/AndroidRuntime（717）：在android.app.ActivityThread.performLaunchActivity（ActivityThread.java:2401）
07-16 09:19:23.299:ERROR/AndroidRuntime（717）：位于android.app.ActivityThread.handleLaunchActivity（ActivityThread.java:2417）
07-16 09:19:23.299:ERROR/AndroidRuntime（717）：在android.app.ActivityThread.access$2100（ActivityThread.java:116）
07-16 09:19:23.299:ERROR/AndroidRuntime（717）：在android.app.ActivityThread$H.handleMessage（ActivityThread.java:1794）
07-16 09:19:23.299:ERROR/AndroidRuntime（717）：位于android.os.Handler.dispatchMessage（Handler.java:99）
07-16 09:19:23.299:ERROR/AndroidRuntime（717）：在android.os.Looper.loop（Looper.java:123）上
07-16 09:19:23.299:ERROR/AndroidRuntime（717）：位于android.app.ActivityThread.main（ActivityThread.java:4203）
07-16 09:19:23.299:ERROR/AndroidRuntime（717）：位于java.lang.reflect.Method.invokenactive（本机方法）
07-16 09:19:23.299:ERROR/AndroidRuntime（717）：位于java.lang.reflect.Method.invoke（Method.java:521）
07-16 09:19:23.299:ERROR/AndroidRuntime（717）：位于com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run（ZygoteInit.java:791）
07-16 09:19:23.299:ERROR/AndroidRuntime（717）：位于com.android.internal.os.ZygoteInit.main（ZygoteInit.java:549）
07-16 09:19:23.299:ERROR/AndroidRuntime（717）：在dalvik.system.NativeStart.main（本机方法）
07-16 09:19:23.299:错误/AndroidRuntime（717）：原因：java.lang.RuntimeException:二进制XML文件行#50:必须提供布局宽度属性。
07-16 09:19:23.299:ERROR/AndroidRuntime（717）：位于android.content.res.TypedArray.getLayoutDimension（TypedArray.java:438）
07-16 09:19:23.299:ERROR/AndroidRuntime（717）：在android.view.ViewGroup$LayoutParams.setBaseAttributes（ViewGroup.java:3433）
07-16 09:19:23.299:ERROR/AndroidRuntime（717）：在android.view.ViewGroup$MarginLayoutParams（ViewGroup.java:3513）
07-16 09:19:23.299:ERROR/AndroidRuntime（717）：在android.widget.LinearLayout$LayoutParams。（LinearLayout.java:1265）
07-16 09:19:23.299:ERROR/AndroidRuntime（717）：在android.widget.LinearLayout.generateLayoutParams（LinearLayout.java:1191）
07-16 09:19:23.299:ERROR/AndroidRuntime（717）：在android.widget.LinearLayout.generateLayoutParams（LinearLayout.java:45）
07-16 09:19:23.299:ERROR/AndroidRuntime（717）：在android.view.LayoutInflater.rInflate（LayoutInflater.java:619）
07-16 09:19:23.299:ERROR/AndroidRuntime（717）：在android.view.LayoutInflater.inflate（LayoutInflater.java:407）
07-16 09:19:23.299:ERROR/AndroidRuntime（717）：在android.view.LayoutInflater.inflate（LayoutInflater.java:320）
07-16 09:19:23.299:ERROR/AndroidRuntime（717）：在android.view.LayoutInflater.inflate（LayoutInflater.java:276）
07-16 09:19:23.299:ERROR/AndroidRuntime（717）：位于com.android.internal.policy.impl.PhoneWindow.setContentView（PhoneWindow.java:313）
07-16 09:19:23.299:ERROR/AndroidRuntime（717）：位于android.app.Activity.setContentView（Activity.java:1620）
07-16 09:19:23.299:ERROR/AndroidRuntime（717）：在com.radio.streamingradio.Tune_in.onCreate（Tune_in.java:24）
07-16 09:19:23.299:ERROR/AndroidRuntime（717）：在android.app.Instrumentation.callActivityOnCreate（Instrumentation.java:1123）
07-16 09:19:23.299:ERROR/AndroidRuntime（717）：在android.app.ActivityThread.performLaunchActivity（ActivityThread.java:2364）

这是我的日志错误

编辑3:@lbyrdie:啊，谢谢你的解决方案。我已经添加了布局属性，并设法达到了目的。但每当我按下下载按钮时，它仍然会出错。这是我的日志：

07-16 10:19:04.930: ERROR/AndroidRuntime(998): Uncaught handler: thread main exiting due to uncaught exception
07-16 10:19:04.950: ERROR/AndroidRuntime(998): java.lang.NullPointerException
07-16 10:19:04.950: ERROR/AndroidRuntime(998):     at com.radio.streamingradio.PLSParser.<init>(PLSParser.java:17)
07-16 10:19:04.950: ERROR/AndroidRuntime(998):     at com.radio.streamingradio.Tune_in.onClick(Tune_in.java:41)
07-16 10:19:04.950: ERROR/AndroidRuntime(998):     at android.view.View.performClick(View.java:2344)
07-16 10:19:04.950: ERROR/AndroidRuntime(998):     at android.view.View.onTouchEvent(View.java:4133)
07-16 10:19:04.950: ERROR/AndroidRuntime(998):     at android.widget.TextView.onTouchEvent(TextView.java:6504)
07-16 10:19:04.950: ERROR/AndroidRuntime(998):     at android.view.View.dispatchTouchEvent(View.java:3672)
07-16 10:19:04.950: ERROR/AndroidRuntime(998):     at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:882)
07-16 10:19:04.950: ERROR/AndroidRuntime(998):     at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:882)
07-16 10:19:04.950: ERROR/AndroidRuntime(998):     at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:882)
07-16 10:19:04.950: ERROR/AndroidRuntime(998):     at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:882)
07-16 10:19:04.950: ERROR/AndroidRuntime(998):     at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:882)
07-16 10:19:04.950: ERROR/AndroidRuntime(998):     at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:882)
07-16 10:19:04.950: ERROR/AndroidRuntime(998):     at com.android.internal.policy.impl.PhoneWindow$DecorView.superDispatchTouchEvent(PhoneWindow.java:1712)
07-16 10:19:04.950: ERROR/AndroidRuntime(998):     at com.android.internal.policy.impl.PhoneWindow.superDispatchTouchEvent(PhoneWindow.java:1202)
07-16 10:19:04.950: ERROR/AndroidRuntime(998):     at android.app.Activity.dispatchTouchEvent(Activity.java:1987)
07-16 10:19:04.950: ERROR/AndroidRuntime(998):     at com.android.internal.policy.impl.PhoneWindow$DecorView.dispatchTouchEvent(PhoneWindow.java:1696)
07-16 10:19:04.950: ERROR/AndroidRuntime(998):     at android.view.ViewRoot.handleMessage(ViewRoot.java:1658)
07-16 10:19:04.950: ERROR/AndroidRuntime(998):     at android.os.Handler.dispatchMessage(Handler.java:99)
07-16 10:19:04.950: ERROR/AndroidRuntime(998):     at android.os.Looper.loop(Looper.java:123)
07-16 10:19:04.950: ERROR/AndroidRuntime(998):     at android.app.ActivityThread.main(ActivityThread.java:4203)
07-16 10:19:04.950: ERROR/AndroidRuntime(998):     at java.lang.reflect.Method.invokeNative(Native Method)
07-16 10:19:04.950: ERROR/AndroidRuntime(998):     at java.lang.reflect.Method.invoke(Method.java:521)
07-16 10:19:04.950: ERROR/AndroidRuntime(998):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:791)
07-16 10:19:04.950: ERROR/AndroidRuntime(998):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:549)
07-16 10:19:04.950: ERROR/AndroidRuntime(998):     at dalvik.system.NativeStart.main(Native Method)

07-16 10:19:04.930:错误/AndroidRuntime（998）：未捕获处理程序：由于未捕获异常，线程主线程正在退出
07-16 10:19:04.950:错误/AndroidRuntime（998）：java.lang.NullPointerException
07-16 10:19:04.950:错误/AndroidRuntime（998）：