Not able to run java code from Eclipse to Jmeter using Groovy - groovy

Question

The code below prints the content from the excel file (tried in eclipse) but I am not able to run it in Jmeter 3.1 using Groovy.
I throws error:
Problem in JSR223 script JSR223 Sampler, message:
javax.script.ScriptException:
org.codehaus.groovy.control.MultipleCompilationErrorsException:
startup failed
This is my code:
public static void main (String args[]) throws IOException
{
GetExcelTableInto2DArrayListString("C:\\Users\\val1\\Desktop\\Book1.xlsx", true);
}
public static void GetExcelTableInto2DArrayListString(String excelFile, boolean debug) throws IOException{
ArrayList<String> OUT = new ArrayList<String>();
File myFile = new File(excelFile);
FileInputStream fis = null;
fis = new FileInputStream(myFile);
String columnWanted = "PhysicalIDs";
Integer columnNo = null;
XSSFWorkbook myWorkBook = null;
myWorkBook = new XSSFWorkbook (fis);
// Return first sheet from the XLSX workbook
XSSFSheet mySheet = myWorkBook.getSheetAt(0);
// Get iterator to all the rows in current sheet
List<Cell> cells = new ArrayList<Cell>();
Row firstRow = mySheet.getRow(0); //rowIterator.next();
for(Cell cell:firstRow){
if (cell.getStringCellValue().equals(columnWanted)){
columnNo = cell.getColumnIndex();
}
}
System.out.println(columnNo);
DataFormatter formatter = new DataFormatter(Locale.US);
if (columnNo != null){
for (Row row : mySheet) {
Cell c = row.getCell(columnNo);
System.out.println(formatter.formatCellValue(c));
if (c == null) {
// Nothing in the cell in this row, skip it
} else {
cells.add(c);
}
}
}else{
System.out.println("could not find column " + columnWanted + " in first row of " + myFile.toString());
}
}

Answer 1

I strongly doubt that your code works in eclipse (whatever it is) and anywhere else because this line:
public static void main (String args[])
is not syntactically correct neither in Java nor in Groovy.
The "good" declaration of the entry point (although it's not required for Groovy scripts) would be:
public static void main(String[] args)
Full code just in case:
import org.apache.poi.ss.usermodel.Cell
import org.apache.poi.ss.usermodel.DataFormatter
import org.apache.poi.ss.usermodel.Row
import org.apache.poi.xssf.usermodel.XSSFSheet
import org.apache.poi.xssf.usermodel.XSSFWorkbook
public static void main(String[] args) throws IOException {
GetExcelTableInto2DArrayListString("C:\\Users\\val1\\Desktop\\Book1.xlsx", true);
}
public static void GetExcelTableInto2DArrayListString(String excelFile, boolean debug) throws IOException {
ArrayList<String> OUT = new ArrayList<String>();
File myFile = new File(excelFile);
FileInputStream fis = null;
fis = new FileInputStream(myFile);
String columnWanted = "PhysicalIDs";
Integer columnNo = null;
XSSFWorkbook myWorkBook = null;
myWorkBook = new XSSFWorkbook(fis);
// Return first sheet from the XLSX workbook
XSSFSheet mySheet = myWorkBook.getSheetAt(0);
// Get iterator to all the rows in current sheet
List<Cell> cells = new ArrayList<Cell>();
Row firstRow = mySheet.getRow(0); //rowIterator.next();
for (Cell cell : firstRow) {
if (cell.getStringCellValue().equals(columnWanted)) {
columnNo = cell.getColumnIndex();
}
}
System.out.println(columnNo);
DataFormatter formatter = new DataFormatter(Locale.US);
if (columnNo != null) {
for (Row row : mySheet) {
Cell c = row.getCell(columnNo);
System.out.println(formatter.formatCellValue(c));
if (c == null) {
// Nothing in the cell in this row, skip it
} else {
cells.add(c);
}
}
} else {
System.out.println("could not find column " + columnWanted + " in first row of " + myFile.toString());
}
}
More information:
Lesson: A Closer Look at the "Hello World!" Application
Busy Developers' Guide to HSSF and XSSF Features
Apache Groovy - Why and How You Should Use It