T
T
tr1ck12020-09-03 23:32:39
excel
tr1ck1, 2020-09-03 23:32:39

How to read xlsx file using POI?

I read the xls file using POI HSSF, everything was correct. But it did not learn how to read the xlsx input file. Previously, I didn’t work with xlsx, I read material on various resources on the network, I didn’t notice the difference, except for replacing HSSF with XSSF and connecting additional. libraries. However, it throws an error:
Exception in thread "main" java.lang.NoSuchMethodError: org.apache.poi.util.XMLHelper.newDocumentBuilder()Ljavax/xml/parsers/DocumentBuilder;

Swears at
XSSFWorkbook wb = new XSSFWorkbook(p_file);
def res = SSC.execute(connection,file,"test.xlsx")

The code is given below (I would be very grateful if anyone can help me solve the problem now / don't pay attention to ";" because I use groovy, the rest is all similar to java):

import groovy.sql.Sql
import org.apache.poi.xssf.usermodel.XSSFCell

import javax.xml.soap.Text
import java.sql.Blob
import java.sql.Connection
import java.sql.DriverManager

import org.apache.poi.ss.usermodel.*
import org.apache.poi.hssf.usermodel.*

import org.apache.poi.xssf.usermodel.XSSFWorkbook; //New imports to read XLSX format
import org.apache.poi.xssf.usermodel.XSSFSheet; //New imports to read XLSX format
import org.apache.poi.ss.usermodel.*;
import java.util.Iterator;


import java.io.*;

class XM_PARSE_XLS {

    def execute(Connection conn, InputStream p_file, String p_filename) {



        Sql sql = new Sql(conn)

        XSSFWorkbook wb = new XSSFWorkbook(p_file);

        ArrayList<HashMap<String, String>> arrAllData = new ArrayList<HashMap<String, String>>();

        String strsql
        Integer cntStr = 0
        HashSet rw_okpo = new HashSet();

        // идем по листам в файле
        wb.each { XSSFSheet myExcelSheet ->
            DataFormatter formatter = new DataFormatter(Locale.ROOT);

            // идем по страницам файла
            myExcelSheet.each{  Row myrow ->

                HashMap<String, String> hm = new HashMap<String, String>();

                if (cntStr >= 0) {
                    // идем по строкам с данными
                    Integer numCell = 0;
                    String typ = '';

                    myrow.each { Cell mycell ->
                        String value = ""; // приводит любые ячейки к строковому формату

                        // если тип Строка
                        if (mycell.getCellType() == XSSFCell.CELL_TYPE_STRING) {
                            value = mycell.getStringCellValue();
                            typ = 'S'
                            // если тип число
                        }  else {
                            // а для числовых ячеек или ячеек даты значение будет отформатировано на основе правил форматирования / стиля, примененных к ячейке, а затем возвращено как строка
                            value = formatter.formatCellValue(mycell);
                            value = value.replace(',','');
                            typ = 'N'
                            if (cntStr >= 0){
                            switch(numCell) { //0-17
                                case 0:
                                    hm.put("t0", value + ";");
                                    break;
                                case 1:
                                    hm.put("t1", value + ";");
                                    break;
                                case 2:
                                    hm.put("t2", value + ";");
                                    break;
                                case 3:
                                    hm.put("t3", value + ";");
                                    break;
                                case 4:
                                    hm.put("t4", value + ";");
                                    break;
                                case 5:
                                    hm.put("t5", value + ";");
                                    break;
                                case 6:
                                    hm.put("t6", value + ";");
                                    break;
                                case 7:
                                    hm.put("t7", value + ";");
                                    break;
                                case 8:
                                    hm.put("t8", value + ";");
                                    break;
                                case 9:
                                    hm.put("t9", value + ";");
                                    break;
                                case 10:
                                    hm.put("t10", value + ";");
                                    break;
                                case 11:
                                    hm.put("t11", value + ";");
                                    break;
                                case 12:
                                    hm.put("t12", value + ";");
                                    break;
                                case 13:
                                    hm.put("t13", value + ";");
                                    break;
                                case 14:
                                    hm.put("t14", value + ";");
                                    break;
                                case 15:
                                    hm.put("t15", value + ";");
                                    break;
                                case 16:
                                    hm.put("t16", value + ";");
                                    break;
                                case 17:
                                    hm.put("t17", value + "\r\n");
                                    break;
                            }
                            numCell = numCell + 1;

                        }

                    }
                }
                if(hm) arrAllData.add(hm);
                cntStr = cntStr + 1;
            }
        }



        return res;
    }
    static void main(String... args) {
        Class.forName("oracle.jdbc.driver.OracleDriver")
        //Connection connection = DriverManager.getConnection("jdbc:oracle:thin:@10.193.21.75:3333/OLAP2", "LAS", "ASfDER7F4FA")
        connection.setAutoCommit(true)

        try {

            def file = new File("test.xlsx").newInputStream()
            def SSC = new XM_PARSE_XLS()
            def res = SSC.execute(connection,file,"test.xlsx")

        } finally {
            connection.close()
        }
    }

}

Answer the question

In order to leave comments, you need to log in

Didn't find what you were looking for?

Ask your question

Ask a Question

731 491 924 answers to any question