使用Apache POI在Java中读/写Excel文件时出现问题
大家好,我是java poi库的新手,我尝试了所有的运气来学习这个库,但仍然没有运气 我想要这个输出 Excel1.xls有此数据 邮政编码|地点|日期使用Apache POI在Java中读/写Excel文件时出现问题,java,loops,apache-poi,Java,Loops,Apache Poi,大家好,我是java poi库的新手,我尝试了所有的运气来学习这个库,但仍然没有运气 我想要这个输出 Excel1.xls有此数据 邮政编码|地点|日期 211 我想复制所有第一行数据 邮编|地点|日期 然后把它放到另一张纸上 这是我制作的代码 public static void main(String[] args) throws IOException{ try { FileInputStream file = new FileInputStream(new Fi
211 我想复制所有第一行数据 邮编|地点|日期 然后把它放到另一张纸上 这是我制作的代码
public static void main(String[] args) throws IOException{
try {
FileInputStream file = new FileInputStream(new File("d:\\input.xls"));
HSSFWorkbook workbook = new HSSFWorkbook(file);
HSSFSheet sheet = workbook.getSheetAt(0);
HSSFSheet zip1 = workbook.createSheet("ZIP CODE 1");
for(Row row : sheet){
int i=0;
for(Cell cell : row){
cell.setCellType(Cell.CELL_TYPE_STRING);
System.out.print(cell.getStringCellValue() + "\t");
String a = cell.getStringCellValue();
cell = zip1.createRow(i).createCell(i);
i++;
cell.setCellValue(a);
}
break;
}
file.close();
FileOutputStream outFile =new FileOutputStream(new File("d:\\output.xls"));
workbook.write(outFile);
outFile.close();
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
发现的问题
HSSFWorkbook
应为XSSFWorkbook
try {
FileInputStream file = new FileInputStream(new File(
"C:\\path\\Book1.xlsx"));
XSSFWorkbook workbook = new XSSFWorkbook(file);
XSSFSheet sheet = workbook.getSheetAt(0);
XSSFSheet zip1 = workbook.createSheet("ZIP CODE 1");
Row readFirstRow = sheet.getRow(0);
Row writeFirstRow = zip1.createRow(0);
for (Cell cell : readFirstRow) {
cell.setCellType(Cell.CELL_TYPE_STRING);
String a = cell.getStringCellValue();
cell = writeFirstRow.createCell(cell.getColumnIndex());
cell.setCellValue(a);
}
file.close();
FileOutputStream outFile = new FileOutputStream(new File(
"C:\\path\\BookOut.xlsx"));
workbook.write(outFile);
outFile.close();
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
发现的问题
HSSFWorkbook
应为XSSFWorkbook
try {
FileInputStream file = new FileInputStream(new File(
"C:\\path\\Book1.xlsx"));
XSSFWorkbook workbook = new XSSFWorkbook(file);
XSSFSheet sheet = workbook.getSheetAt(0);
XSSFSheet zip1 = workbook.createSheet("ZIP CODE 1");
Row readFirstRow = sheet.getRow(0);
Row writeFirstRow = zip1.createRow(0);
for (Cell cell : readFirstRow) {
cell.setCellType(Cell.CELL_TYPE_STRING);
String a = cell.getStringCellValue();
cell = writeFirstRow.createCell(cell.getColumnIndex());
cell.setCellValue(a);
}
file.close();
FileOutputStream outFile = new FileOutputStream(new File(
"C:\\path\\BookOut.xlsx"));
workbook.write(outFile);
outFile.close();
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
发现的问题
HSSFWorkbook
应为XSSFWorkbook
try {
FileInputStream file = new FileInputStream(new File(
"C:\\path\\Book1.xlsx"));
XSSFWorkbook workbook = new XSSFWorkbook(file);
XSSFSheet sheet = workbook.getSheetAt(0);
XSSFSheet zip1 = workbook.createSheet("ZIP CODE 1");
Row readFirstRow = sheet.getRow(0);
Row writeFirstRow = zip1.createRow(0);
for (Cell cell : readFirstRow) {
cell.setCellType(Cell.CELL_TYPE_STRING);
String a = cell.getStringCellValue();
cell = writeFirstRow.createCell(cell.getColumnIndex());
cell.setCellValue(a);
}
file.close();
FileOutputStream outFile = new FileOutputStream(new File(
"C:\\path\\BookOut.xlsx"));
workbook.write(outFile);
outFile.close();
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
发现的问题
HSSFWorkbook
应为XSSFWorkbook
try {
FileInputStream file = new FileInputStream(new File(
"C:\\path\\Book1.xlsx"));
XSSFWorkbook workbook = new XSSFWorkbook(file);
XSSFSheet sheet = workbook.getSheetAt(0);
XSSFSheet zip1 = workbook.createSheet("ZIP CODE 1");
Row readFirstRow = sheet.getRow(0);
Row writeFirstRow = zip1.createRow(0);
for (Cell cell : readFirstRow) {
cell.setCellType(Cell.CELL_TYPE_STRING);
String a = cell.getStringCellValue();
cell = writeFirstRow.createCell(cell.getColumnIndex());
cell.setCellValue(a);
}
file.close();
FileOutputStream outFile = new FileOutputStream(new File(
"C:\\path\\BookOut.xlsx"));
workbook.write(outFile);
outFile.close();
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
尝试使用Xcelite
https://github.com/eBay/xcelite#writing
写:
公共类用户{
@列(name=“Firstname”)
私有字符串名;
@列(name=“Lastname”)
私有字符串lastName;
@纵队
私人长id;
@纵队
私人生日;
}
Xcelite Xcelite=新的Xcelite();
XceliteSheet sheet=xcelite.createSheet(“用户”);
SheetWriter writer=sheet.getBeanWriter(User.class);
列表用户=新建ArrayList();
//…填充用户
writer.write(用户);
写入(新文件(“users_doc.xlsx”);
尝试使用Xcelite
https://github.com/eBay/xcelite#writing
写:
公共类用户{
@列(name=“Firstname”)
私有字符串名;
@列(name=“Lastname”)
私有字符串lastName;
@纵队
私人长id;
@纵队
私人生日;
}
Xcelite Xcelite=新的Xcelite();
XceliteSheet sheet=xcelite.createSheet(“用户”);
SheetWriter writer=sheet.getBeanWriter(User.class);
列表用户=新建ArrayList();
//…填充用户
writer.write(用户);
写入(新文件(“users_doc.xlsx”);
尝试使用Xcelite
https://github.com/eBay/xcelite#writing
写:
公共类用户{
@列(name=“Firstname”)
私有字符串名;
@列(name=“Lastname”)
私有字符串lastName;
@纵队
私人长id;
@纵队
私人生日;
}
Xcelite Xcelite=新的Xcelite();
XceliteSheet sheet=xcelite.createSheet(“用户”);
SheetWriter writer=sheet.getBeanWriter(User.class);
列表用户=新建ArrayList();
//…填充用户
writer.write(用户);
写入(新文件(“users_doc.xlsx”);
尝试使用Xcelite
https://github.com/eBay/xcelite#writing
写:
公共类用户{
@列(name=“Firstname”)
私有字符串名;
@列(name=“Lastname”)
私有字符串lastName;
@纵队
私人长id;
@纵队
私人生日;
}
Xcelite Xcelite=新的Xcelite();
XceliteSheet sheet=xcelite.createSheet(“用户”);
SheetWriter writer=sheet.getBeanWriter(User.class);
列表用户=新建ArrayList();
//…填充用户
writer.write(用户);
写入(新文件(“users_doc.xlsx”);
谢谢你,希瑟姆!:D你的代码看起来很简单^ ^我希望我能像你一样擅长编程再次感谢你^ ^谢谢你hitham!:D你的代码看起来很简单^ ^我希望我能像你一样擅长编程再次感谢你^ ^谢谢你hitham!:D你的代码看起来很简单^ ^我希望我能像你一样擅长编程再次感谢你^ ^谢谢你hitham!:D你的代码看起来很简单^我希望我能像你一样擅长编程再次感谢你^_^