ACRA:我如何将ACRA报告写入文件(在SD卡中)？

Question

我可以通过处理未捕获的异常来使用ACRA库来管理强制关闭错误.报告可以成功发送到谷歌文档,电子邮件和自定义Web服务..

但我想要的是什么..

• 如何将报告写入文件[例如 sdcard/myapp/myLog.txt]？

我为什么要这个..

• 强制关闭时,我的应用程序用户可能没有互联网连接 ..如果是,那么我将错过报告,如果我将报告写入文件然后我可以在互联网连接可用时发送到我的服务器.

Answer 1

我想您想要实现的目标已经由ACRA完成.这是我在abd logcat中看到的内容:

01-23 12:15:28.056: D/ACRA(614): Writing crash report file.
01-23 12:15:28.136: D/ACRA(614): Mark all pending reports as approved.
01-23 12:15:28.136: D/ACRA(614): Looking for error files in /data/data/com.ybi/files
01-23 12:15:28.136: V/ACRA(614): About to start ReportSenderWorker from #handleException
01-23 12:15:28.146: D/ACRA(614): Add user comment to null
01-23 12:15:28.146: D/ACRA(614): #checkAndSendReports - start
01-23 12:15:28.146: D/ACRA(614): Looking for error files in /data/data/com.ybi/files

ACRA所做的第一件事就是在应用程序的内部存储上创建一个文件报告.然后,如果您在线并且错误报告器已正确初始化,则会发送报告.否则,报告将保留在数据存储中(以便稍后发送).

我没有查看数据,但我正在研究自定义记录器.因此,如果您想要做与ACRA相同的事情,那很简单:

    ACRA.init(this);

    // a custom reporter for your very own purposes
    ErrorReporter.getInstance().setReportSender(new LocalReportSender(this));

然后 :

import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStreamWriter;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import java.util.Set;

import org.acra.ACRA;
import org.acra.CrashReportData;
import org.acra.ReportField;
import org.acra.sender.ReportSender;
import org.acra.sender.ReportSenderException;

import android.content.Context;

import de.akquinet.android.androlog.Log;

public class LocalReportSender implements ReportSender {

private final Map<ReportField, String> mMapping = new HashMap<ReportField, String>() ;
private FileOutputStream crashReport = null; 

public LocalReportSender(Context ctx) {
    // the destination
    try {
        crashReport = ctx.openFileOutput("crashReport", Context.MODE_WORLD_READABLE);
    } catch (FileNotFoundException e) {
        Log.e("TAG", "IO ERROR",e);
    }
}

@Override
public void send(CrashReportData report) throws ReportSenderException {

    final Map<String, String> finalReport = remap(report);

    try {
        OutputStreamWriter osw = new OutputStreamWriter(crashReport);

        Set set = finalReport.entrySet();
        Iterator i = set.iterator();

        while (i.hasNext()) {
            Map.Entry<String,String> me = (Map.Entry) i.next();
            osw.write("[" + me.getKey() + "]=" + me.getValue());
        }

        osw.flush();
        osw.close();
    } catch (IOException e) {
        Log.e("TAG", "IO ERROR",e);
    }

}

private static boolean isNull(String aString) {
    return aString == null || ACRA.NULL_VALUE.equals(aString);
}

private Map<String, String> remap(Map<ReportField, String> report) {

    ReportField[] fields = ACRA.getConfig().customReportContent();
    if (fields.length == 0) {
        fields = ACRA.DEFAULT_REPORT_FIELDS;
    }

    final Map<String, String> finalReport = new HashMap<String, String>(
            report.size());
    for (ReportField field : fields) {
        if (mMapping == null || mMapping.get(field) == null) {
            finalReport.put(field.toString(), report.get(field));
        } else {
            finalReport.put(mMapping.get(field), report.get(field));
        }
    }
    return finalReport;
}

}

我还没有完全测试它,但你明白了.希望能帮助到你.

Answer 2

我想@ Gomoku7的答案包含一些不推荐使用的代码,所以我只发布我使用的解决方案:

在onCreate()中调用它:

ACRA.init(this);
ACRA.getErrorReporter().setReportSender(new LocalReportSender(this));

在这里我基本上已经改变了代码以使用BufferedWriter,这样我就可以直接写入SD卡了,这是不可能的openFileOutput().因此,只有方法send()和构造函数LocalReportSender()略有改变.

注意:请注意日志文件增长得非常快,因此请确保您不会占用用户SD卡空间的MB,因为日志文件:)

private class LocalReportSender implements ReportSender {

    private final Map<ReportField, String> mMapping = new HashMap<ReportField, String>();
    private FileWriter crashReport = null;

    public LocalReportSender(Context ctx) {
        // the destination
        File logFile = new File(Environment.getExternalStorageDirectory(), "log.txt");

        try {
            crashReport = new FileWriter(logFile, true);
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    @Override
    public void send(CrashReportData report) throws ReportSenderException {
        final Map<String, String> finalReport = remap(report);

        try {
            BufferedWriter buf = new BufferedWriter(crashReport);

            Set<Entry<String, String>> set = finalReport.entrySet();
            Iterator<Entry<String, String>> i = set.iterator();

            while (i.hasNext()) {
                Map.Entry<String, String> me = (Entry<String, String>) i.next();
                buf.append("[" + me.getKey() + "]=" + me.getValue());
            }

            buf.flush();
            buf.close();
        } catch (IOException e) {
            Log.e("TAG", "IO ERROR", e);
        }
    }

    private boolean isNull(String aString) {
        return aString == null || ACRAConstants.NULL_VALUE.equals(aString);
    }

    private Map<String, String> remap(Map<ReportField, String> report) {

        ReportField[] fields = ACRA.getConfig().customReportContent();
        if (fields.length == 0) {
            fields = ACRAConstants.DEFAULT_REPORT_FIELDS;
        }

        final Map<String, String> finalReport = new HashMap<String, String>(
                report.size());
        for (ReportField field : fields) {
            if (mMapping == null || mMapping.get(field) == null) {
                finalReport.put(field.toString(), report.get(field));
            } else {
                finalReport.put(mMapping.get(field), report.get(field));
            }
        }
        return finalReport;
    }

}