CELL_TYPE_STRING无法解析或不是字段

Question

堆栈跟踪

Exception in thread "main" java.lang.Error: Unresolved compilation problems: 
CELL_TYPE_STRING cannot be resolved or is not a field
CELL_TYPE_NUMERIC cannot be resolved or is not a field
CELL_TYPE_BOOLEAN cannot be resolved or is not a field
at len.a.main(a.java:30)

法典

package len;
import java.io.FileInputStream;
import java.util.ArrayList;
import java.util.Iterator;
import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.Row;
import org.apache.poi.ss.usermodel.Sheet;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
public class a {
public static void main(String[] args) throws Exception{
ArrayList data =new ArrayList();
FileInputStream f =new FileInputStream("E:\leadsuite.xlsx");
XSSFWorkbook wb=new XSSFWorkbook(f);
Sheet s=wb.getSheet("test steps");
Iterator itr=s.iterator();
while(itr.hasNext())
{
Row r=(Row) itr.next();
Iterator cellitr=r.cellIterator();
while(cellitr.hasNext())
{
Cell celldata=(Cell) cellitr.next();
switch(celldata.getCellType())
{
case Cell.CELL_TYPE_STRING:
data.add(celldata.getStringCellValue());
break;
case Cell.CELL_TYPE_NUMERIC:
data.add(celldata.getNumericCellValue());
break;
case Cell.CELL_TYPE_BOOLEAN:
data.add(celldata.getBooleanCellValue());
break;
}
}
}
}
}

Answer 1

如果您使用的是更高版本的ApachePOI poi-4.0.1，Cell.getCellType()返回CellType enum而不是int，因此您的开关应如下所示：

现在在CELL_TYPE_NUMERIC现在只是NUMERIC删除CELL_TYPE_

while(cellitr.hasNext())
{
Cell celldata=(Cell) cellitr.next();
switch(celldata.getCellType())
{
case STRING:
data.add(celldata.getStringCellValue());
break;
case NUMERIC:
data.add(celldata.getNumericCellValue());
break;
case BOOLEAN:
data.add(celldata.getBooleanCellValue());
break;
}

Answer 2

enum是STRING、NUMERIC和BOOLEAN，去掉CELL_TYPE_，它们是CellType枚举的一部分。

switch(celldata.getCellType()) {
case CellType.STRING:
data.add(celldata.getStringCellValue());
break;
case CellType.NUMERIC:
data.add(celldata.getNumericCellValue());
break;
case CellType.BOOLEAN:
data.add(celldata.getBooleanCellValue());
break;
}

Answer 3

试试这段代码。它有效... 您只需要知道poi api版本并遵循poi api中的新更改。

import java.io.FileInputStream;
import java.util.ArrayList;
import java.util.Iterator;
import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.Row;
import org.apache.poi.xssf.usermodel.XSSFSheet;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;

public class A {
public static void main(String[] args) throws Exception{
ArrayList data = new ArrayList();
FileInputStream file = new FileInputStream("F://LeadSuite.xlsx");
XSSFWorkbook book = new XSSFWorkbook(file);
XSSFSheet s = book.getSheet("TestSteps");
Iterator itr = s.iterator();
while (itr.hasNext()) {
Row rowitr = (Row) itr.next();
Iterator cellitr = rowitr.cellIterator();
while(cellitr.hasNext()) {
Cell celldata = (Cell) cellitr.next();
switch(celldata.getCellType()) {
case STRING:
data.add(celldata.getStringCellValue());
break;
case NUMERIC:
data.add(celldata.getNumericCellValue());
break;
case BOOLEAN:
data.add(celldata.getBooleanCellValue());
break;
}
}
}
for (int i=0;i<data.size();i++) {
if(data.get(i).equals("Sharan")) {
System.out.println(data.get(i));
System.out.println(data.get(i+1));
System.out.println(data.get(i+2));
System.out.println(data.get(i+3));          
}
if(data.get(i).equals("Kiran")) {
System.out.println(data.get(i));
System.out.println(data.get(i+1));
System.out.println(data.get(i+2));
System.out.println(data.get(i+3));
}
if(data.get(i).equals("Jhade")) {
System.out.println(data.get(i));
System.out.println(data.get(i+1));
System.out.println(data.get(i+2));
System.out.println(data.get(i+3));
}
}       
}
}

Answer 4

像这样使用开关盒

switch (cell.getCellType()) {
case STRING:
System.out.print(cell.getStringCellValue() + "ttt");
break;
case NUMERIC:
System.out.print(cell.getNumericCellValue() + "ttt");
break;
default:
}

Answer 5

JDK 15

switch (cell.getCellType()) {
case NUMERIC -> data.add(cell.getNumericCellValue());
case STRING ->  data.add(cell.getStringCellValue());
}