因此,我创建了一个类,用于搜索excel文件并打印文件的所有行和列。现在我有一个异常文件找不到错误。为了解决此错误,我更改了代码中的文件路径,但是由于某种原因,我得到了相同的错误,并且控制台中的错误消息显示了我使用的先前的文件路径,这给了我错误。
我知道新文件路径正确,但是Eclipse似乎无法识别代码已更新。这是来自该类的代码:
public class ExcelReader {
public static final String SAMPLE_XLSX_FILE_PATH = "K:\\Documents\\Project\\Netword_GUI\\Netword_GUI\\src\\libs\\cc2017.xlsx";
public static void main(String[] args) throws IOException, InvalidFormatException {
// Creating a Workbook from an Excel file (.xls or .xlsx)
Workbook workbook = WorkbookFactory.create(new File(SAMPLE_XLSX_FILE_PATH));
// Retrieving the number of sheets in the Workbook
System.out.println("Workbook has " + workbook.getNumberOfSheets() + " Sheets : ");
/*
=============================================================
Iterating over all the sheets in the workbook (Multiple ways)
=============================================================
*/
// You can obtain a sheetIterator and iterate over it
Iterator<Sheet> sheetIterator = workbook.sheetIterator();
System.out.println("Retrieving Sheets using Iterator");
while (sheetIterator.hasNext()) {
Sheet sheet = sheetIterator.next();
//System.out.println(sheet.getRow(0));
System.out.println("=> " + sheet.getSheetName());
}
// Getting the Sheet at index zero
Sheet sheet = workbook.getSheetAt(0);
// Create a DataFormatter to format and get each cell's value as String
DataFormatter dataFormatter = new DataFormatter();
// You can obtain a rowIterator and columnIterator and iterate over them
System.out.println("\n\nIterating over Rows and Columns using Iterator\n");
Iterator<Row> rowIterator = sheet.rowIterator();
while (rowIterator.hasNext()) {
Row row = rowIterator.next();
// Now let's iterate over the columns of the current row
Iterator<Cell> cellIterator = row.cellIterator();
while (cellIterator.hasNext()) {
Cell cell = cellIterator.next();
String cellValue = dataFormatter.formatCellValue(cell);
System.out.print(cellValue + "\t");
}
System.out.println();
}
if (sheet.getActiveCell() == null) {
// Closing the workbook
workbook.close();
}
}
}
现在这是控制台中显示的错误消息:
线程“ main”中的异常java.io.FileNotFoundException: C:\ Users \ User \ Dropbox \ Placement \ Private_Backup \ Netword_GUI \ Netword_GUI \ src \ cc2017.xlsx 在 org.apache.poi.ss.usermodel.WorkbookFactory.create(WorkbookFactory.java:250) 在 org.apache.poi.ss.usermodel.WorkbookFactory.create(WorkbookFactory.java:226) 在 org.apache.poi.ss.usermodel.WorkbookFactory.create(WorkbookFactory.java:205) 在ExcelReader.main(ExcelReader.java:13)
注意:控制台中的文件路径与代码中的文件路径不同。以前错误消息中的文件路径是在代码中,这是因为我在另一台计算机上具有相同的类,所以文件路径已更改,因为我正在使用的计算机上的位置不同。
答案 0 :(得分:2)
有时候Eclipse中的构建不是最新的。
在这种情况下,您应该清理并重新构建项目(从“ Project ”菜单中)
答案 1 :(得分:0)
能否请您添加代码,以使每个代码都对您的代码有个全面的了解,从而为您提供正确的答案 试试这个
File f=new File(fixed_file_path);
Workbook workbook = WorkbookFactory.create(f);