我正在尝试开发一个用于在SQLite中导入csv的应用程序。我已经参考了几个示例来构建我的代码,如下所示:
Button button_import_csv = (Button) findViewById(R.id.button_import);
button_import_csv.setOnClickListener(new View.OnClickListener(){
public void onClick(View v){
DatabaseHelper helper = new DatabaseHelper(getApplicationContext());
SQLiteDatabase db = helper.getWritableDatabase();
try{
FileReader file = new FileReader("/sdcard/downloadedfolder/A1/sales_order.csv");
BufferedReader buffer = new BufferedReader(file);
ContentValues contentValues=new ContentValues();
String line = "";
String tableName ="sales_order";
db.beginTransaction();
while ((line = buffer.readLine()) != null) {
String[] str = line.split("\t");
contentValues.put("order_date", str[1]);
contentValues.put("cust_code", str[2]);
contentValues.put("customer_ref", str[3]);
contentValues.put("line_no", str[4]);
contentValues.put("item_code", str[5]);
contentValues.put("tran_code", str[6]);
contentValues.put("order_qty", str[7]);
db.insert(tableName, null, contentValues);
}
db.setTransactionSuccessful();
db.endTransaction();
}catch (IOException e){
}
}
});
但是,单击按钮时发现错误。以下是日志中的错误消息。
05-07 09:41:21.478: D/AndroidRuntime(20789): Shutting down VM
05-07 09:41:21.478: W/dalvikvm(20789): threadid=1: thread exiting with uncaught exception (group=0x419baba8)
05-07 09:41:21.518: E/AndroidRuntime(20789): FATAL EXCEPTION: main
05-07 09:41:21.518: E/AndroidRuntime(20789): Process: test.andftpclient, PID: 20789
05-07 09:41:21.518: E/AndroidRuntime(20789): java.lang.ArrayIndexOutOfBoundsException: length=7; index=7
05-07 09:41:21.518: E/AndroidRuntime(20789): at test.andftpclient.MainActivity$2.onClick(MainActivity.java:116)
05-07 09:41:21.518: E/AndroidRuntime(20789): at android.view.View.performClick(View.java:4438)
05-07 09:41:21.518: E/AndroidRuntime(20789): at android.view.View$PerformClick.run(View.java:18422)
05-07 09:41:21.518: E/AndroidRuntime(20789): at android.os.Handler.handleCallback(Handler.java:733)
05-07 09:41:21.518: E/AndroidRuntime(20789): at android.os.Handler.dispatchMessage(Handler.java:95)
05-07 09:41:21.518: E/AndroidRuntime(20789): at android.os.Looper.loop(Looper.java:136)
05-07 09:41:21.518: E/AndroidRuntime(20789): at android.app.ActivityThread.main(ActivityThread.java:5017)
05-07 09:41:21.518: E/AndroidRuntime(20789): at java.lang.reflect.Method.invokeNative(Native Method)
05-07 09:41:21.518: E/AndroidRuntime(20789): at java.lang.reflect.Method.invoke(Method.java:515)
05-07 09:41:21.518: E/AndroidRuntime(20789): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779)
05-07 09:41:21.518: E/AndroidRuntime(20789): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595)
05-07 09:41:21.518: E/AndroidRuntime(20789): at dalvik.system.NativeStart.main(Native Method)
05-07 09:41:38.678: I/Process(20789): Sending signal. PID: 20789 SIG: 9
我没有关于为什么数组索引超出限制的线索。我已经检查过csv数据可以成功地分解成子字符串。任何人都可以对我的编码提出一些想法吗?
答案 0 :(得分:0)
contentValues.put("order_date", str[0]);
contentValues.put("cust_code", str[1]);
contentValues.put("customer_ref", str[2]);
contentValues.put("line_no", str[3]);
contentValues.put("item_code", str[4]);
contentValues.put("tran_code", str[5]);
contentValues.put("order_qty", str[6]);
db.insert(tableName, null, contentValues);
让它从str [0]运行到str [6]