Get the next row while importing file CSV in groovy - mysql

Question

i ever ask a question at this link
how to take data from csv file and save into grails with mysql?
i am confuse..how to read next row..so the file csv like this
row 1 : bobby,1,20,628129456774,2 //this 2 means its have 2 child, it will import to different table.
row 2 : singer,50%
row 3 : dance,50%
so first line it will insert to table PERSON and the last digit "2" means table PERSON have 2 Child..
the row 2 and 3 will insert to table Hobby where the domain like thiss.
package com.teravin.collection.maintenance
import java.util.Date;
class Hobby{
String hobby
String likess
Person person
static constraints = {
}
def beforeInsert = {
// createdBy = springSecurityService.principal.username
createDate = new Date()
}
def beforeUpdate = {
// updatedBy = springSecurityService.principal.username
lastUpdated = new Date()
}
}

Answer 1

Try this sample: It loops to read next line from csv
public List Sample()
{
List<wsSample> result = new List<wsSample>();
string path = #"C:\Users\c_evtamondong\Desktop\sampleCsv.csv";
StreamReader csvSample = new StreamReader(path);
DataTable oDataTable = new DataTable();
int rowCount = 0;
string[] columnNames = null;
string[] CsvValues = null;
while (!csvSample.EndOfStream)
{
string RowData = csvSample.ReadLine().Trim();
if (RowData.Length > 0)
{
CsvValues = RowData.Split(new string[] {","}, StringSplitOptions.None);
if (rowCount == 0) //check if it's in the first line
{
rowCount = 1;
columnNames = CsvValues;
foreach (string csvHeader in columnNames)
{
// do nothing
// to eliminate the header in the .csv file
}
}
else
{
for (int i = 0; i < CsvValues.Length-1; i++ )
{
result.Add(new wsSample()
{
id = CsvValues[i],
name = CsvValues[i + 1],
lastname = CsvValues[i + 2]
});
i = i + 1;
}
}
}
}
csvSample.Close();
csvSample.Dispose();
return result;
}