[英]Read from excel file .xlsx using java Apache POI 3.9 Eclipse
[英]java program for read an excel file using Apache POI and eclipse as editor
我創建了這段代碼來使用 APACHE POI 讀取包含布爾值、字符串和數值的 excel 文件。
import java.io.*;
import java.util.ArrayList;
import java.util.Iterator;
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;
import org.apache.poi.poifs.filesystem.POIFSFileSystem;
public class ExcelRead {
public static void main(String[] args) throws Exception {
File excel = new File ("C:\\Users\\...\\Documents\\test.xls");
FileInputStream fis = new FileInputStream(excel);
HSSFWorkbook wb = new HSSFWorkbook(fis);
HSSFSheet ws = wb.getSheet("Input");
int rowNum = ws.getLastRowNum()+1;
int colNum = ws.getRow(0).getLastCellNum();
String[][] data = new String[rowNum][colNum];
for (int i=0; i<rowNum; i++){
HSSFRow row = ws.getRow(i);
for (int j=0; j<colNum; j++){
HSSFCell cell = row.getCell(j);
String value = cellToString(cell);
data[i][j] = value;
System.out.println("The value is" + value);
}
}
}
public static String cellToString (HSSFCell cell){
int type;
Object result;
type = cell.getCellType();
switch(type) {
case 0://numeric value in excel
result = cell.getNumericCellValue();
break;
case 1: //string value in excel
result = cell.getStringCellValue();
break;
case 2: //boolean value in excel
result = cell.getBooleanCellValue ();
break;
default:
throw new RunTimeException("There are no support for this type of
cell");
}
return result.toString();
}
當我使用 eclipse 運行它時,我收到此警告:
用法:AddDimensionedImage imageFile outputFile
誰能幫我?
您正在嘗試運行名為“AddDimensionedImage”的不同項目/類。
右鍵單擊 Eclipse 上的 ExcelRead 文件,然后選擇 Run As -> Java Application
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