Java reads and writes excel files and java reads and writes excel files

Java reads and writes excel files and java reads and writes excel files

Requirement: use Java to read and write excel files

Use jexcelapi to read and write excel files in Java

 

First download and install jexcelapi

JExcelApi v2.6.12 (1911 kbytes)

Decompress the package and add the jxl. jar file to the Java Build Path.

 

Prepare the test excel file (D: \ test \ employee .xls)

 

Java reads excel files

Package com. test. IF. service; import java. io. file; import java. io. IOException; import jxl. cell; import jxl. sheet; import jxl. workbook; import jxl. read. biff. biffException; public class HandleExcelFile {private String excelFilePath = "D: \ test \ employee .xls"; private String [] [] nReadArray; private int nRows, nColumns = 0; Workbook xWorkbook; // convert the content in Excel to a two-dimensional array and return public String [] [] readExcel () {try {xWorkbook = Workbook. getWorkbook (new File (excelFilePath); Sheet sheet = xWorkbook. getSheet (0); nRows = sheet. getRows (); nColumns = sheet. getColumns (); nReadArray = new String [nRows] [nColumns]; for (int I = 1; I <nRows; I ++) {for (int j = 0; j <nColumns; j ++) {Cell cell = sheet. getCell (j, I); // (column, row) String content = cell. getContents (); nReadArray [I] [j] = content ;}} catch (BiffException e) {e. printStackTrace ();} catch (IOException e) {e. printStackTrace ();} xWorkbook. close (); return nReadArray;} public static void main (String [] args) {HandleExcelFile he = new HandleExcelFile (); String [] [] xLine = he. readExcel (); for (int I = 1; I <xLine. length; I ++) {for (int j = 0; j <xLine [I]. length; j ++) {System. out. print (xLine [I] [j] + "|");} System. out. println ();}}}

Test the read program. The result is

 

Write excel files in Java