在java項目中解析Microsoft的office系列軟件,都會用到Apache的poi包,從office2007開始office系列的文件後綴名發生了改變,所以原來低版本的poi並不支持office2007以後的文件解析。好像是從poi3.5以後才支持了2007版本的解析。如果項目中的poi版本太舊可以在http://poi.apache.org/download.html下載新版本的poi。
1.解析.xls文件
public List<TestUpload> readXls(String filePath) throws IOException {
GetSys GetSys=new GetSys();
InputStream is = new FileInputStream(filePath);
HSSFWorkbook hssfWorkbook = new HSSFWorkbook(is);
TestUpload testupload = null;
List<TestUpload> list = new ArrayList<TestUpload>();
for (int numSheet = 0; numSheet <hssfWorkbook.getNumberOfSheets(); numSheet++) {
HSSFSheet hssfSheet = hssfWorkbook.getSheetAt(numSheet);
if (hssfSheet == null) {
continue;
}
for (int rowNum = 0; rowNum <= hssfSheet.getLastRowNum(); rowNum++) {
HSSFRow hssfRow = hssfSheet.getRow(rowNum);
if (hssfRow != null) {
testupload= new TestUpload();
//HSSFCell id = hssfRow.getCell((short) 0);
HSSFCell name= hssfRow.getCell((short)0);
//testupload.setUserId(GetSys.getUserId().toString());
//testupload.setId(id.getNumericCellValue());
testupload.setName(getValue_Xls(name));
list.add(testupload);
}
}
}
return list;
}
上面函數中,有getValue_Xls(),作用是格式化excel文件每個單元格的數據類型,將單元格中的不同數據類型都轉換爲String,代碼如下:
private String getValue_Xls(HSSFCell hssfCell) {
if (hssfCell.getCellType() == hssfCell.CELL_TYPE_BOOLEAN) {
return String.valueOf(hssfCell.getBooleanCellValue());
} else if (hssfCell.getCellType() == hssfCell.CELL_TYPE_NUMERIC) {
return String.valueOf(hssfCell.getNumericCellValue());
} else {
return String.valueOf(hssfCell);
}
}
當然還要導入各種包:
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.List;
import org.apache.poi.hssf.usermodel.HSSFCell;
import org.apache.poi.hssf.usermodel.HSSFRow;
import org.apache.poi.hssf.usermodel.HSSFSheet;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
xlsx的解析跟xls的解析非常相近,只是將導入的包從HSSF***換成XSSF***。
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.List;
import org.apache.poi.xssf.usermodel.XSSFCell;
import org.apache.poi.xssf.usermodel.XSSFRow;
import org.apache.poi.xssf.usermodel.XSSFSheet;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
public List<TestUpload> readXlsx(String filePath) throws IOException {
GetSys GetSys=new GetSys();
InputStream is = new FileInputStream(filePath);
XSSFWorkbook xssfWorkbook = new XSSFWorkbook(is);
TestUpload testupload = null;
List<TestUpload> list = new ArrayList<TestUpload>();
for (int numSheet = 0; numSheet <xssfWorkbook.getNumberOfSheets(); numSheet++) {
XSSFSheet xssfSheet = xssfWorkbook.getSheetAt(numSheet);
if (xssfSheet == null) {
continue;
}
for (int rowNum = 0; rowNum <= xssfSheet.getLastRowNum(); rowNum++) {
XSSFRow xssfRow = xssfSheet.getRow(rowNum);
if (xssfRow != null) {
testupload= new TestUpload();
//HSSFCell id = hssfRow.getCell((short) 0);
XSSFCell name= xssfRow.getCell((short)0);
//testupload.setUserId(GetSys.getUserId().toString());
//testupload.setId(id.getNumericCellValue());
testupload.setName(getValue_Xlsx(name));
list.add(testupload);
}
}
}
return list;
}
private String getValue_Xlsx(XSSFCell xssfCell) {
if (xssfCell.getCellType() == xssfCell.CELL_TYPE_BOOLEAN) {
return String.valueOf(xssfCell.getBooleanCellValue());
} else if (xssfCell.getCellType() == xssfCell.CELL_TYPE_NUMERIC) {
return String.valueOf(xssfCell.getNumericCellValue());
} else {
return String.valueOf(xssfCell.getStringCellValue());
}
}