Java POI Read Excel 2003/2007/2010 example __java

Source: Internet
Author: User
Tags rowcount

Java read-write Excel package is Apache POI (Project address: http://poi.apache.org/), so you need to obtain the POI jar package, this experiment is using the POI 3.9 stable version.

Apache POI code example address: http://poi.apache.org/spreadsheet/quick-guide.html

This example reads Microsoft Office Excel 2003/2007/2010, with specific code and comments as follows:

read the ". xls" format using the import org.apache.poi.hssf.usermodel.*; package contents, for example: Hssfworkbook
Read the ". xlsx" format using the import org.apache.poi.xssf.usermodel.*; The contents of the package, for example: Xssfworkbook
Read both formats using the contents of the import org.apache.poi.ss.usermodel.* package, for example: Workbook

The introduction package is as follows:

Import Org.apache.poi.ss.usermodel.Cell;
Import Org.apache.poi.ss.usermodel.Row;
Import Org.apache.poi.ss.usermodel.Sheet;
Import Org.apache.poi.ss.usermodel.Workbook;
Import org.apache.poi.ss.usermodel.WorkbookFactory;
Import Org.apache.poi.ss.usermodel.DateUtil;

     /** * Read Excel test, compatible with Excel 2003/2007/2010 */public String Readexcel () {SimpleDateFormat FMT
        = new SimpleDateFormat ("Yyyy-mm-dd");
            try {//also supports Excel 2003, 2007 File Excelfile = new file ("/home/zht/test.xls");//Create Files Object FileInputStream is = new FileInputStream (excelfile); File Stream Workbook workbook = Workbookfactory.create (IS);  This way Excel 2003/2007/2010 can be handled by int sheetcount = Workbook.getnumberofsheets (); Number of Sheet//traversal of each Sheet for (int s = 0; s < sheetcount; s++) {Sheet Sheet = Wor
                Kbook.getsheetat (s); int rowcount = Sheet.getphysicalnumberofrows (); Gets the total number of rows//traverses each line for (int r = 0; r < rowcount; r++) {Row row = Shee
                    T.getrow (R); int cellcount = Row.getphysicalnumberofcells (); Gets the total number of columns//traversal for each column for (int c = 0; C < CELLCOunt;
                        C + +) {cell cell = Row.getcell (c);
                        int celltype = Cell.getcelltype ();
                        String cellvalue = null; Switch (celltype) {case cell.cell_type_string://Text Cellvalue
                                = Cell.getstringcellvalue ();
                            Break
                                    Case Cell.cell_type_numeric://number, date if (dateutil.iscelldateformatted (Cell)) { Cellvalue = Fmt.format (Cell.getdatecellvalue ()); Date type} else {Cellval UE = String.valueof (Cell.getnumericcellvalue ());
                            Number} break; Case Cell.cell_type_boolean://Boolean cellvalue = String.valueof (Cell.getbooleancellValue ());
                            Break
                                Case Cell.cell_type_blank://Blank cellvalue = Cell.getstringcellvalue ();
                            Break
                                Case CELL.CELL_TYPE_ERROR://Error Cellvalue = "Error";
                            Break
                                Case Cell.cell_type_formula://Formula Cellvalue = "Error";
                            Break
                        Default:cellvalue = "Error";
                    } System.out.print (Cellvalue + "");
                } System.out.println ();
        A catch (Exception e) {e.printstacktrace ());
    return action.success; }



Related Article

Contact Us

The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion; products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the content of the page makes you feel confusing, please write us an email, we will handle the problem within 5 days after receiving your email.

If you find any instances of plagiarism from the community, please send an email to: info-contact@alibabacloud.com and provide relevant evidence. A staff member will contact you within 5 working days.

A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

  • Sales Support

    1 on 1 presale consultation

  • After-Sales Support

    24/7 Technical Support 6 Free Tickets per Quarter Faster Response

  • Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.