如何將csv導入android上的sqlite並列出信息

Question

如何將csv導入android上的sqlite並列出信息。 我是andorid的新手，一個完整的示例對於我了解它的工作原理非常有用，db hepler是我的問題，我不知道如何首先將其設置為找到的這樣的代碼

                InputStream is = getAssets().open("textv.csv"); 
                BufferedReader br = new BufferedReader(new InputStreamReader(is, "UTF-8"));

                String line = "";
                String tableName ="TABLE_NAME";
                String columns = "_id, name, dt1, dt2, dt3";
                String str1 = "INSERT INTO " + tableName + " (" + columns + ") values(";
                String str2 = ");";

                db.beginTransaction();
                while ((line = buffer.readLine()) != null) {
                    StringBuilder sb = new StringBuilder(str1);
                    String[] str = line.split(",");
                    sb.append("'" + str[0] + "',");
                    sb.append(str[1] + "',");
                    sb.append(str[2] + "',");
                    sb.append(str[3] + "'");
                    sb.append(str[4] + "'");
                    sb.append(str2);
                    db.execSQL(sb.toString());
                }
                db.setTransactionSuccessful();
                db.endTransaction();

所以請幫忙

Answer 1

您是否遇到該代碼段的任何問題？ 您最好使用ContentValues而不是StringBuilder。

InputStream is = getAssets().open("textv.csv"); 
BufferedReader br = new BufferedReader(new InputStreamReader(is, "UTF-8"));

String line = "";
String tableName ="TABLE_NAME";
String columns = "_id, name, dt1, dt2, dt3";
ContentValues values = new ContentValues();
db.beginTransaction();
while ((line = buffer.readLine()) != null) 
{
    values.clear();
    String[] str = line.split(",");

    values.put ("_id", str[0]);
    values.put ("name", str[1]);
    values.put ("dt1", str[2]);
    values.put ("dt2", str[3]);
    values.put ("dt3", str[4]);

    db.insert (tableName, null, values);
}

db.setTransactionSuccessful();
db.endTransaction();

請注意，我尚未添加任何錯誤處理代碼。