我遇到了一个问题。
我希望将所有文本放在一行(在不同的单元格中)并将其作为字符串添加到数组列表中(即每一行,ArrayList中的新元素),稍后我会将该行拆分为单个元素然后,我将把它们中的一些放入不同的变量中。
我从“http://howtodoinjava.com/2013/06/19/readingwriting-excel-files-in-java-poi-tutorial/
获取此代码我想把每个单元格添加到一个临时数组中,然后在每次迭代之后我将它们作为一个字符串组合在一起。然而,当我尝试对每个单元格进行编号(以查看一切是如何工作的)时,这种情况就会失败,细胞就会到处都是。
任何支持都会很棒!!
这是我的代码:
import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileReader;
import java.io.IOException;
import java.io.PrintStream;
import java.text.DecimalFormat;
import java.util.*;
import org.apache.*;
import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.Row;
import org.apache.poi.xssf.usermodel.*;
import java.lang.Iterable;
import org.apache.poi.xssf.usermodel.XSSFRow;
import org.apache.poi.xssf.usermodel.XSSFCell;
public class ReadExcelDemo {
ArrayList<String> stringRow = new ArrayList();
ArrayList<String> temp = new ArrayList();
ArrayList<String> list = new ArrayList<String>();
String listString = "";
String x;
String y;
public void go() {
try {
FileInputStream file = new FileInputStream(new File(
"ratesheet_prefix.xlsx"));
// Create Workbook instance holding reference to .xlsx file
XSSFWorkbook workbook = new XSSFWorkbook(file);
// Get first/desired sheet from the workbook
XSSFSheet sheet = workbook.getSheetAt(1);
// Iterate through each rows one by one
Iterator<Row> rowIterator = sheet.iterator();
String test;
// test.
while (rowIterator.hasNext()) {temp.clear();
Row row = rowIterator.next();
// For each row, iterate through all the columns
Iterator<Cell> cellIterator = row.cellIterator();
while (cellIterator.hasNext())
{temp.clear();
Cell cell = cellIterator.next();
// Check the cell type and format accordingly
switch (cell.getCellType()) {
case Cell.CELL_TYPE_NUMERIC:
// System.out.print(cell.getNumericCellValue() + " ");
this.x = " " + cell.getNumericCellValue() + " ";
temp.add(x);
System.out.print(x);
break;
case Cell.CELL_TYPE_STRING:
this.y = " " + cell.getStringCellValue() + " ";
// System.out.print(cell.getStringCellValue() + " ");
System.out.print(y);
temp.add(y);
break;
}
/*
for (String s : temp) {
listString += s + "\t";
}
System.out.println(listString);
*/
}
System.out.println(" ");
stringRow.add(listString);
// String z = x + y;
// System.out.println(z);
/*
* for (String s : temp) { listString += s + "\t"; }
* System.out.println(listString); temp.clear();
* stringRow.add(listString);
*/}
file.close();
} catch (Exception e) {
e.printStackTrace();
}
/*
* for (String x:stringRow){ System.out.println(x); }
*/
}
public static void main(String[] args) {
ReadExcelDemo main = new ReadExcelDemo();
main.go();
}
}
答案 0 :(得分:0)
从你的问题中你不清楚你要做什么。我打算猜一下 - 产生一个字符串数组,每行一个字符串,每个单元格的文本之间只有-
,只有第一张表中的数据。
假设你基本上想要这样的东西,你需要做的就是:
List<String> text = new ArrayList<String>();
Workbook wb = WorkbookFactory.create(new File("input.xlsx"));
DataFormatter fmt = new DataFormatter();
Sheet s = wb.getSheetAt(0);
for (Row r : s) {
StringBuffer sb = new StringBuffer();
for (Cell c : r) {
if (sb.length() > 0) sb.append(" - ");
sb.append(fmt.formatCell(c));
}
text.add(sb.toString());
}
简单,不是吗!