工具1：POI
POI是常用的讀取Office文件的開源工具。但是在它正式發布的版本中沒有提供得到Excel中Formula值的功能。
這個POI還在開發中的功能。相關信息 請看
http://jakarta.apache.org/poi/hssf/eval.html工具2：JExcelAPI
Java Excel API - A Java API to read, write, and modify Excel spreadsheets
http://jexcelapi.sourceforge.net/目前的最新版本是2.6?
Some Features* Reads data from Excel 95, 97, 2000, XP, and 2003 workbooks
* Reads and writes formulas (Excel 97 and later only)
* Generates spreadsheets in Excel 2000 format
* Supports font, number and date formatting
* Supports shading, bordering, and coloring of cells
* Modifies existing worksheets
* Is internationalized, enabling processing in almost any locale, country, language, or character encoding (formulas are currently only supported in English, French, * * Spanish, and German, but more can be added if translated)
* Supports copying of charts
* Supports insertion and copying of images into spreadsheets
* Supports logging with Jakarta Commons Logging, log4j, JDK 1.4 Logger, etc
...and much more
??1?import?java.io.BufferedWriter;
??2?import?java.io.File;
??3?import?java.io.IOException;
??4?import?java.io.OutputStream;
??5?import?java.io.OutputStreamWriter;
??6?import?java.io.UnsupportedEncodingException;
??7?
??8?import?java.util.ArrayList;
??9?import?java.util.Iterator;
?10?
?11?import?jxl.Cell;
?12?import?jxl.CellType;
?13?import?jxl.FormulaCell;
?14?import?jxl.Sheet;
?15?import?jxl.Workbook;
?16?import?jxl.biff.CellReferenceHelper;
?17?import?jxl.biff.formula.FormulaException;
?18?
?19?/**
?20??*?Goes?through?each?cell?in?the?workbook,?and?if?the?contents?of?that?cell?is?a
?21??*?formula,?it?prints?out?the?last?calculated?value?and?the?formula?string
?22??*/
?23?public?class?Formulas?{
?24?
?25?????public?static?void?main(String[]?args)?{
?26?????????String?file?=?"jxlrwtest.xls";
?27?????????String?encoding?=?"UTF8";
?28?????????try?{
?29?????????????Workbook?w?=?Workbook.getWorkbook(new?File(file));
?30?????????????Formulas?f?=?new?Formulas(w,?System.out,?encoding);
?31?????????????w.close();
?32?????????}?catch?(Exception?e)?{
?33?????????????e.printStackTrace();
?34?????????}
?35?????}
?36?
?37?????/**
?38??????*?Constructor
?39??????*?
?40??????*?@param?w
?41??????*????????????The?workbook?to?interrogate
?42??????*?@param?out
?43??????*????????????The?output?stream?to?which?the?CSV?values?are?written
?44??????*?@param?encoding
?45??????*????????????The?encoding?used?by?the?output?stream.?Null?or?unrecognized
?46??????*????????????values?cause?the?encoding?to?default?to?UTF8
?47??????*?@exception?java.io.IOException
?48??????*/
?49?????public?Formulas(Workbook?w,?OutputStream?out,?String?encoding)
?50?????????????throws?IOException?{
?51?????????if?(encoding?==?null?||?!encoding.equals("UnicodeBig"))?{
?52?????????????encoding?=?"UTF8";
?53?????????}
?54?
?55?????????try?{
?56?????????????OutputStreamWriter?osw?=?new?OutputStreamWriter(out,?encoding);
?57?????????????BufferedWriter?bw?=?new?BufferedWriter(osw);
?58?
?59?????????????ArrayList?parseErrors?=?new?ArrayList();
?60?
?61?????????????for?(int?sheet?=?0;?sheet?<?w.getNumberOfSheets();?sheet++)?{
?62?????????????????Sheet?s?=?w.getSheet(sheet);
?63?
?64?????????????????bw.write(s.getName());
?65?????????????????bw.newLine();
?66?
?67?????????????????Cell[]?row?=?null;
?68?????????????????Cell?c?=?null;
?69?
?70?????????????????for?(int?i?=?0;?i?<?s.getRows();?i++)?{
?71?????????????????????row?=?s.getRow(i);
?72?
?73?????????????????????for?(int?j?=?0;?j?<?row.length;?j++)?{
?74?????????????????????????c?=?row[j];
?75?????????????????????????if?(c.getType()?==?CellType.NUMBER_FORMULA
?76?????????????????????????????????||?c.getType()?==?CellType.STRING_FORMULA
?77?????????????????????????????????||?c.getType()?==?CellType.BOOLEAN_FORMULA
?78?????????????????????????????????||?c.getType()?==?CellType.DATE_FORMULA
?79?????????????????????????????????||?c.getType()?==?CellType.FORMULA_ERROR)?{
?80?????????????????????????????FormulaCell?nfc?=?(FormulaCell)?c;
?81?????????????????????????????StringBuffer?sb?=?new?StringBuffer();
?82?????????????????????????????CellReferenceHelper.getCellReference(c.getColumn(),
?83?????????????????????????????????????c.getRow(),?sb);
?84?
?85?????????????????????????????try?{
?86?????????????????????????????????bw.write("Formula?in?"?+?sb.toString()
?87?????????????????????????????????????????+?"?value:??"?+?c.getContents());
?88?????????????????????????????????bw.flush();
?89?????????????????????????????????bw.write("?formula:?"?+?nfc.getFormula());
?90?????????????????????????????????bw.flush();
?91?????????????????????????????????bw.newLine();
?92?????????????????????????????}?catch?(FormulaException?e)?{
?93?????????????????????????????????bw.newLine();
?94?????????????????????????????????parseErrors
?95?????????????????????????????????????????.add(s.getName()?+?'!'?+?sb.toString()
?96?????????????????????????????????????????????????+?":?"?+?e.getMessage());
?97?????????????????????????????}
?98?????????????????????????}
?99?????????????????????}
100?????????????????}
101?????????????}
102?????????????bw.flush();
103?????????????bw.close();
104?
105?????????????if?(parseErrors.size()?>?0)?{
106?????????????????System.err.println();
107?????????????????System.err.println("There?were?"?+?parseErrors.size()
108?????????????????????????+?"?errors");
109?
110?????????????????Iterator?i?=?parseErrors.iterator();
111?????????????????while?(i.hasNext())?{
112?????????????????????System.err.println(i.next());
113?????????????????}
114?????????????}
115?????????}?catch?(UnsupportedEncodingException?e)?{
116?????????????System.err.println(e.toString());
117?????????}
118?????}
119?}
兩篇中文的介紹：
http://www.chinaitpower.com/A/2005-03-03/109739.htmlhttp://www.myfaq.com.cn/A200507/2005-07-24/166992.html