我希望Transformer阶段将具有重复列的数据的单行转换为多个输出行。
当输入数据包含多列包含重复数据的行时,我如何使用Transformer阶段生成多个输出行:每个重复列一个。 的输入
Col1 Col2 Name1 Name2 Name3
abc def Jim Bob Tom
输出:
Col1 Col2 Name
abc def Jim
abc def Bob
abc def Tom
//loop to read data and store in array
for(i = 0; i <= Lastrow; i++) {
for(j = 0; j <= R_endColumn; j++) {
Row readrow = sheet.getRow(i);
Cell readcell = readrow.getCell(j);
String datavalues = df.formatCellValue(readcell);
System.out.println(datavalues);
localstore[i][j] = datavalues;
}
}
int newrow_Number = 0;
for(i = 0; i <= Lastrow; i++) {
for(int k = 0; k <= Lengthof_IP; k++) {
newrow_Number = newrow_Number + 1;
for(j = 0; j <= requirement_endColumn; j++) {
Row readrow = sheet.createRow(newrow_Number);
Cell readcell = readrow.getCell(j, org.apache.poi.ss.usermodel.Row.CREATE_NULL_AS_BLANK);
String datavalues = df.formatCellValue(readcell);
readcell.setCellValue(localstore[i][j]);
}
}
}
FileOutputStream out = new FileOutputStream(new File("C:/DataTransformation/op1.xlsx"));
workbook.write(out);
out.close();
答案 0 :(得分:0)
我可以通过以下代码来解决这个问题。
filepath="C:/DataTransformation/Book1_New1.xlsx";
File file = new File(filepath);
filepath = file.getPath();
//File file = new File("C:/Input/Programfiles/TestStepTable.xlsx");
System.out.println(filepath);
XSSFWorkbook workbook = new XSSFWorkbook(filepath);
XSSFSheet sheet = workbook.getSheetAt(0);
DataFormatter df = new DataFormatter();
int Lastrow= sheet.getLastRowNum();
int k = requirement_endColumn;
System.out.println("Column for requirement: " + k);
ArrayList myList = (ArrayList) new ArrayList();
ArrayList myList1 = (ArrayList) new ArrayList();
int lengthofInput= input_endColumn-input_startColumn;
int lengthofOutput= output_endColumn-output_startColumn;
int Lengthofloop;
if(lengthofInput>=lengthofOutput)
{
Lengthofloop=lengthofInput;
}
else
{
Lengthofloop=lengthofOutput;
}
int i;
int j;
String[][] localstore= new String[100][100];
//java.util.Iterator<Row> rowIterator = sheet.iterator();
for ( i = 0; i <=Lastrow; i++) // Change this max value of i upto total row number in the file
{
for ( int kk = 0; kk <=Lengthofloop; kk++) // Change this max value of i upto total row number in the file
{
newrow_Number=newrow_Number+1;
for ( j = 0; j <=output_endColumn; j++) // Change this max value of i upto total row number in the file
{
Row readrow= sheet.getRow(i);
//Row writerow=sheet.getRow(i+j);
Cell readcell=readrow.getCell(j, org.apache.poi.ss.usermodel.Row.CREATE_NULL_AS_BLANK);
//Cell writecell=writerow.getCell(i+j);
String datavalues = df.formatCellValue(readcell);
//writecell.setCellValue(""+datavalues);
// System.out.println(datavalues);
localstore[i][j]= datavalues;
System.out.println("I am i"+i + "---"+ "I am J"+j+localstore[i][j]);
//readrow= sheet.createRow(newrow_Number+1);
//readcell=readrow.getCell(j, org.apache.poi.ss.usermodel.Row.CREATE_NULL_AS_BLANK);
//readcell.setCellValue("sanjay"+localstore[i][j]);
//Cell readcell=readrow.getCell(j, org.apache.poi.ss.usermodel.Row.CREATE_NULL_AS_BLANK);
}
}
}
int jj=0;
for ( i = 0; i <=Lastrow; i++) // Change this max value of i upto total row number in the file
{
for ( int kk = 0; kk <=Lengthofloop; kk++) // Change this max value of i upto total row number in the file
{
//newrow_Number=newrow_Number+1;
Row readrow=sheet.createRow(newrow_Number);
for ( j = 0; j <=requirement_endColumn+2; j++) // Change this max value of i upto total row number in the file
{
System.out.println("------------------------------");
int m = sheet.getPhysicalNumberOfRows();
System.out.println("getPhysicalNumberOfRows"+m);
Cell readcell=readrow.getCell(j+output_endColumn, org.apache.poi.ss.usermodel.Row.CREATE_NULL_AS_BLANK);
String datavalues = df.formatCellValue(readcell);
readcell.setCellValue(""+localstore[i][j]);
if(j==requirement_endColumn+1)
{
//readcell=readrow.getCell(j+jj, org.apache.poi.ss.usermodel.Row.CREATE_NULL_AS_BLANK);
readcell.setCellValue(""+localstore[i][j+kk]);
jj=jj+1;
}
else if(j==requirement_endColumn+2)
{
//readcell=readrow.getCell(j+jj, org.apache.poi.ss.usermodel.Row.CREATE_NULL_AS_BLANK);
readcell.setCellValue(""+localstore[i][output_startColumn+kk]);
jj=jj+1;
//sheet.removeRow(sheet.getRow(newrow_Number));
}
}
}
//newrow_Number=newrow_Number+1;
}
//sheet.removeRow(sheet.getRow(4));
FileOutputStream out = new FileOutputStream(new File("C:/DataTransformation/op1.xlsx"));
workbook.write(out);
out.close();
}