OpenCSV: How to create CSV file from POJO with custom column headers and custom column positions?

Question

I have created a MappingsBean class where all the columns of the CSV file are specified. Next I parse XML files and create a list of mappingbeans. Then I write that data int

Answer 1

Great thread, I don't have any annotations in my pojo and this is how I did based on all the previous answers. Hope it helps others.

OpenCsv Version: 5.0 List readVendors = getFromMethod(); String[] fields= {"id","recordNumber","finVendorIdTb","finVenTechIdTb","finShortNameTb","finVenName1Tb","finVenName2Tb"};

            String[] csvHeader= {"Id#","Shiv Record Number","Shiv Vendor Id","Shiva Tech Id#","finShortNameTb","finVenName1Tb","finVenName2Tb"};

            CustomMappingStrategy mappingStrategy = new CustomMappingStrategy(csvHeader);//csvHeader as per custom header irrespective of pojo field name
            mappingStrategy.setType(FinVendor.class);
            mappingStrategy.setColumnMapping(fields);//pojo mapping fields


            StatefulBeanToCsv beanToCsv = new StatefulBeanToCsvBuilder(writer).withQuotechar(CSVWriter.NO_QUOTE_CHARACTER).withMappingStrategy(mappingStrategy).build();
            beanToCsv.write(readVendors);

//custom mapping class as mentioned in the thread by many users private static class CustomMappingStrategy extends ColumnPositionMappingStrategy {

                    String[] header;

                    public CustomMappingStrategy(String[] cols) {

                            header = cols;
                    }

                    @Override
                    public String[] generateHeader(T bean) throws CsvRequiredFieldEmptyException {
                        super.generateHeader(bean);
                            return header;
                    }
                    }

Output:

Id#     Shiv Record Number      Shiv Vendor Id   Fin Tech Id#      finShortNameTb  finVenName1Tb   finVenName2Tb   finVenDefaultLocTb
1       VEN00053                678             33316025986        THE ssOHIO S_2  THE UNIVERSITY     CHK         Test
2       VEN02277                1217            3044374205         Fe3 MECHA_1     FR3INC             EFT-1
3       VEN03118                1310            30234484121        PE333PECTUS_1   PER332CTUS AR      EFT-1       Test