How to split a String and insert each value as a record in a database? - sql

Question

I am reading from a file where each line has 3-4 values that are separated by a tab. I have been trying to split the line up (based on the tabs) and store them in their own String, and then I push these values into a method that makes an SQL statement to INSERT INTO the values into a table as a new record.
My issue is that the split() method isn't quite working for me as it is giving me an `ArrayOutOfBoundsException' for the second value. But I am pretty sure there is an easier way to do what I am trying to do.
Currently I have:
// --------- Reading the topURLs file ---------
try {
scan = new Scanner (new File("TestURL"));
while (scan.hasNextLine()) {
String line = scan.nextLine();
String[] SQLValues = line.split("\\t");
String rank = SQLValues[0];
String websiteName = SQLValues[1];
String domain = SQLValues[2];
insertInto(conn, tableName, rank, websiteName, domain);
}
} catch (Exception e) {
e.printStackTrace();
}
And my insertIntomethod in case you would like to see:
public static void insertInto(Connection conn, String name, String rank, String websiteName, String domain) {
Statement st = null;
int rankInt = Integer.parseInt(rank);
try {
st = conn.createStatement();
st.execute("INSERT INTO " + name + "VALUES ('" + rankInt + "', '" + websiteName + "', '" + domain + "')");
} catch (SQLException e) {
e.printStackTrace();
}
}
I am aware this is messy, it's just all I know so far. The file TestURLs currently has two lines for the sake of testing (they are split using tabs in my file, I just don't know how to show that on here):
1 google com
2 cheese com
Is there something I am missing that causes the exception mentioned above? I thought that when I split line that it would put each separated word in the a different index of the array wordsArray. Instead, it seems like there is only one element in it at index 0.
If there is a better way to do what I am trying to do - that is, to take a line from a file, split the values, and put them into a table as a new record - could you point me in the right direction?
Any help is much appreciated.

Answer 1

try using
String[] SQLValues = line.split("\\s+");
you can use a greedy regular expression, which will match any number of white spaces including tabs. You can use "\s+" regex for this purpose.