我有一个程序，它使用 JExcel 库来读取 excel 表并对其进行一些处理。
我注意到的一次令人不安的事情（在我们的一位用户通知之后）是 JExcel 似乎强制将格式化为货币单元格的单元格转换为使用 $ 符号。我已经进行了很多挖掘，但我看不到下一步该去哪里。跳到底部看看问题的症结所在。
本质上，我们有这个方法：
import java.io.File;
import java.io.IOException;
import java.util.Locale;
import jxl.Cell;
import jxl.Sheet;
import jxl.Workbook;
import jxl.WorkbookSettings;
import jxl.read.biff.BiffException;
public class Launcher {
/**
* @param args
*/
public static void main(String[] args) {
nothingSpecifc("D:\\Documents and Settings\\castone\\My Documents\\JExcelCurrencyExample.xls");
}
public static void nothingSpecifc(String excelFilePath){
try {
File myFile = new File(excelFilePath);
Locale myLocal = Locale.UK;
WorkbookSettings wbkSettings = new WorkbookSettings();
wbkSettings.setLocale(myLocal);
wbkSettings.setEncoding("UTF-8");
wbkSettings.setExcelDisplayLanguage("UK");
Workbook workbook = Workbook.getWorkbook(myFile,wbkSettings);
Sheet mySheet = workbook.getSheet(0);
Cell[] myRow = mySheet.getRow(0);
String myCellA1 = myRow[0].getContents();
System.out.println(myCellA1);
} catch (BiffException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
我的示例 .xls 文件在 A1 中有这个值：
但是运行后，我得到了这个值！
现在我无法理解为什么会发生这种情况。令人不安的是，我担心我实施的任何修复都会强制将其他货币符号转换为 £ 符号。
查看 Workbook.java，我正在调用此方法：
/**
* A factory method which takes in an excel file and reads in the contents.
*
* @exception IOException
* @exception BiffException
* @param file the excel 97 spreadsheet to parse
* @param ws the settings for the workbook
* @return a workbook instance
*/
public static Workbook getWorkbook(java.io.File file, WorkbookSettings ws)
throws IOException, BiffException
{
FileInputStream fis = new FileInputStream(file);
// Always close down the input stream, regardless of whether or not the
// file can be parsed. Thanks to Steve Hahn for this
File dataFile = null;
try
{
dataFile = new File(fis, ws);
}
catch (IOException e)
{
fis.close();
throw e;
}
catch (BiffException e)
{
fis.close();
throw e;
}
fis.close();
Workbook workbook = new WorkbookParser(dataFile, ws);
workbook.parse();
return workbook;
}
所以本质上，这个类只是文件 I/O 处理和 excel 之间的一个聪明的包装器/接口。我正在研究 WorkbookSettings 和 WorkbookParser 的默认构造函数。
一、WorkbookSettings：
/**
* Default constructor
*/
public WorkbookSettings()
{
initialFileSize = DEFAULT_INITIAL_FILE_SIZE;
arrayGrowSize = DEFAULT_ARRAY_GROW_SIZE;
localeFunctionNames = new HashMap();
excelDisplayLanguage = CountryCode.USA.getCode();
excelRegionalSettings = CountryCode.UK.getCode();
refreshAll = false;
template = false;
excel9file = false;
windowProtected = false;
hideobj = HIDEOBJ_SHOW_ALL;
// Initialize other properties from the system properties
try
{
boolean suppressWarnings = Boolean.getBoolean("jxl.nowarnings");
setSuppressWarnings(suppressWarnings);
drawingsDisabled = Boolean.getBoolean("jxl.nodrawings");
namesDisabled = Boolean.getBoolean("jxl.nonames");
gcDisabled = Boolean.getBoolean("jxl.nogc");
rationalizationDisabled = Boolean.getBoolean("jxl.norat");
mergedCellCheckingDisabled =
Boolean.getBoolean("jxl.nomergedcellchecks");
formulaReferenceAdjustDisabled =
Boolean.getBoolean("jxl.noformulaadjust");
propertySetsDisabled = Boolean.getBoolean("jxl.nopropertysets");
ignoreBlankCells = Boolean.getBoolean("jxl.ignoreblanks");
cellValidationDisabled = Boolean.getBoolean("jxl.nocellvalidation");
autoFilterDisabled = !Boolean.getBoolean("jxl.autofilter");
// autofilter currently disabled by default
useTemporaryFileDuringWrite =
Boolean.getBoolean("jxl.usetemporaryfileduringwrite");
String tempdir =
System.getProperty("jxl.temporaryfileduringwritedirectory");
if (tempdir != null)
{
temporaryFileDuringWriteDirectory = new File(tempdir);
}
encoding = System.getProperty("file.encoding");
}
catch (SecurityException e)
{
logger.warn("Error accessing system properties.", e);
}
// Initialize the locale to the system locale
try
{
if (System.getProperty("jxl.lang") == null ||
System.getProperty("jxl.country") == null)
{
locale = Locale.getDefault();
}
else
{
locale = new Locale(System.getProperty("jxl.lang"),
System.getProperty("jxl.country"));
}
if (System.getProperty("jxl.encoding") != null)
{
encoding = System.getProperty("jxl.encoding");
}
}
catch (SecurityException e)
{
logger.warn("Error accessing system properties.", e);
locale = Locale.getDefault();
}
}
这里似乎没有任何问题，我已将编码、本地和显示语言设置为英国特定/兼容的。默认情况下，区域设置已经是英国。
现在对于 WorkbookParser：
public class WorkbookParser extends Workbook
implements ExternalSheet, WorkbookMethods
{
/**
* The logger
*/
private static Logger logger = Logger.getLogger(WorkbookParser.class);
/**
* The excel file
*/
private File excelFile;
/**
* The number of open bofs
*/
private int bofs;
/**
* Indicates whether or not the dates are based around the 1904 date system
*/
private boolean nineteenFour;
/**
* The shared string table
*/
private SSTRecord sharedStrings;
/**
* The names of all the worksheets
*/
private ArrayList boundsheets;
/**
* The xf records
*/
private FormattingRecords formattingRecords;
/**
* The fonts used by this workbook
*/
private Fonts fonts;
/**
* The sheets contained in this workbook
*/
private ArrayList sheets;
/**
* The last sheet accessed
*/
private SheetImpl lastSheet;
/**
* The index of the last sheet retrieved
*/
private int lastSheetIndex;
/**
* The named records found in this workbook
*/
private HashMap namedRecords;
/**
* The list of named records
*/
private ArrayList nameTable;
/**
* The list of add in functions
*/
private ArrayList addInFunctions;
/**
* The external sheet record. Used by formulas, and names
*/
private ExternalSheetRecord externSheet;
/**
* The list of supporting workbooks - used by formulas
*/
private ArrayList supbooks;
/**
* The bof record for this workbook
*/
private BOFRecord workbookBof;
/**
* The Mso Drawing Group record for this workbook
*/
private MsoDrawingGroupRecord msoDrawingGroup;
/**
* The property set record associated with this workbook
*/
private ButtonPropertySetRecord buttonPropertySet;
/**
* Workbook protected flag
*/
private boolean wbProtected;
/**
* Contains macros flag
*/
private boolean containsMacros;
/**
* The workbook settings
*/
private WorkbookSettings settings;
/**
* The drawings contained in this workbook
*/
private DrawingGroup drawingGroup;
/**
* The country record (containing the language and regional settings)
* for this workbook
*/
private CountryRecord countryRecord;
private ArrayList xctRecords;
/**
* Constructs this object from the raw excel data
*
* @param f the excel 97 biff file
* @param s the workbook settings
*/
public WorkbookParser(File f, WorkbookSettings s)
{
super();
excelFile = f;
boundsheets = new ArrayList(10);
fonts = new Fonts();
formattingRecords = new FormattingRecords(fonts);
sheets = new ArrayList(10);
supbooks = new ArrayList(10);
namedRecords = new HashMap();
lastSheetIndex = -1;
wbProtected = false;
containsMacros = false;
settings = s;
xctRecords = new ArrayList(10);
}
我在这里看不到任何会影响工作簿创建/访问的内容。
再往下看，通过床单和单元格，我发现了两件有趣的事情：
- 单元格的格式有这个参数 |value
positivePrefix|"$" (id=709) - 这个货币是正确的。看这个：
所以我的问题是，当该getContents()方法在单元格上运行时，为什么它不与货币一起返回（给，我想是 £$#####，因为它仍然有 postivePrefix）以及为什么这个的正前缀无论如何都要设置$？
我看不到在 src 文档中创建单元格的位置，或者在哪里实现了 getContents() 方法（我发现它是声明），所以我无法进一步挖掘，但我希望其他人知道这个原因问题”，或者至少可以解决？