在android数据库中插入的异常

在for循环和打印日志之后，在调用插入函数时会引发一个UnknownFormatConversionException，我发现这个异常但是如何删除它？我do'nt知道是什么原因它发生了，在android数据库中插入的异常

try { 
     List<Status> timeline = 
      ((YambaApp) getApplication()).getTwitter().getPublicTimeline(); 
     for (Status status : timeline) { 
      Log.d(TAG, String.format("%s: %s", status.user.name, 
        status.text)); 
      statusData.insert(status); 

      } 
    } catch (TwitterException e) { 
     Log.d(TAG,"Failed to access twitter service ",e); 
    } catch(NullPointerException a){ 
     Log.d(TAG,"Pref had been changed and twitter object is null",a); 
    } catch (UnknownFormatConversionException u){ 
     Log.d(TAG,"exception "+ u); 
    }

这里是插入功能的代码：

public void insert(Status status){ 
    db=dbHelper.getWritableDatabase(); 

    ContentValues value= new ContentValues(); 
    //converting BigInteger to String 
    BigInteger bi=status.id; 
    String status_id= new String(bi.toByteArray()); 


    value.put(C_ID, status_id); 
    value.put(C_CREATED_AT, status.createdAt.getTime()); 
    value.put(C_TEXT, status.user.name); 
    value.put(C_TEXT, status.text); 

    db.insert(TABLE, null, value); 
}

这里是抛出的异常的完整堆栈跟踪

10-10 06:05:22.648: E/AndroidRuntime(627): FATAL EXCEPTION: IntentService[RefreshService] 
10-10 06:05:22.648: E/AndroidRuntime(627): java.util.UnknownFormatConversionException: Conversion: i 
10-10 06:05:22.648: E/AndroidRuntime(627): at java.util.Formatter$FormatToken.unknownFormatConversionException(Formatter.java:1397) 
10-10 06:05:22.648: E/AndroidRuntime(627): at  java.util.Formatter$FormatToken.checkFlags(Formatter.java:1334) 
10-10 06:05:22.648: E/AndroidRuntime(627): at java.util.Formatter.transform(Formatter.java:1440) 
10-10 06:05:22.648: E/AndroidRuntime(627): at java.util.Formatter.doFormat(Formatter.java:1079) 
10-10 06:05:22.648: E/AndroidRuntime(627): at java.util.Formatter.format(Formatter.java:1040) 
10-10 06:05:22.648: E/AndroidRuntime(627): at java.util.Formatter.format(Formatter.java:1009) 
10-10 06:05:22.648: E/AndroidRuntime(627): at java.lang.String.format(String.java:1998) 
10-10 06:05:22.648: E/AndroidRuntime(627): at java.lang.String.format(String.java:1972) 
10-10 06:05:22.648: E/AndroidRuntime(627): at com.example.yamba.StatusData$DbHelper.onCreate(StatusData.java:59) 
10-10 06:05:22.648: E/AndroidRuntime(627): at android.database.sqlite.SQLiteOpenHelper.getWritableDatabase(SQLiteOpenHelper.java:165) 
10-10 06:05:22.648: E/AndroidRuntime(627): at com.example.yamba.StatusData.insert(StatusData.java:32) 
10-10 06:05:22.648: E/AndroidRuntime(627): at com.example.yamba.RefreshService.onHandleIntent(RefreshService.java:32) 
10-10 06:05:22.648: E/AndroidRuntime(627): at android.app.IntentService$ServiceHandler.handleMessage(IntentService.java:65) 
10-10 06:05:22.648: E/AndroidRuntime(627): at android.os.Handler.dispatchMessage(Handler.java:99) 
10-10 06:05:22.648: E/AndroidRuntime(627): at android.os.Looper.loop(Looper.java:137) 
10-10 06:05:22.648: E/AndroidRuntime(627): at android.os.HandlerThread.run(HandlerThread.java:60) 
10-10 06:05:22.968: W/IInputConnectionWrapper(627): showStatusIcon on inactive InputConnection

来源

2012-10-09 Jake IBee Massa

那么，什么*是例外？ –

请发布堆栈跟踪。 – jjm

UnknownFormatConversionException：转换：i –

在您的insert()方法更改

String status_id= new String(bi.toByteArray());

到

String status_id = bi.toString();

调用bi.toByteArray()是要返回你含有BigInteger的二进制表示的字节数组。您无法正确地将其转换为String。只需使用BigInteger提供的toString()方法即可。

来源

2012-10-09 19:27:30

在android数据库中插入的异常

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