借助于apathe的poi.jar，由于上傳文件不支持.jar所以請下載后將文件改為.jar，在應用程序中添加poi.jar包，并將需要讀取的excel文件放入根目錄即可

本例使用java來讀取excel的內容并展出出結果，代碼如下：

import?java.io.BufferedInputStream;

import?java.io.File;

import?java.io.FileInputStream;

import?java.io.FileNotFoundException;

import?java.io.IOException;

import?java.text.DecimalFormat;

import?java.text.SimpleDateFormat;

import?java.util.ArrayList;

import?java.util.Arrays;

import?java.util.Date;

import?java.util.List;

import?org.apache.poi.hssf.usermodel.HSSFCell;

import?org.apache.poi.hssf.usermodel.HSSFDateUtil;

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?ExcelOperate {

public?static?void?main(String[] args)?throws?Exception {

File file =?new?File("ExcelDemo.xls");

String[][] result =?getData(file, 1);

int?rowLength = result.length;

for(int?i=0;i

for(int?j=0;j

System.out.print(result[i][j]+"\t\t");

}

System.out.println();

}

}

/**

*?讀取Excel的內容，第一維數組存儲的是一行中格列的值，二維數組存儲的是多少個行

*?@param?file?讀取數據的源Excel

*?@param?ignoreRows?讀取數據忽略的行數，比喻行頭不需要讀入?忽略的行數為1

*?@return?讀出的Excel中數據的內容

*?@throws?FileNotFoundException

*?@throws?IOException

*/

public?static?String[][] getData(File file,?int?ignoreRows)

throws?FileNotFoundException, IOException {

List result =?new?ArrayList();

int?rowSize = 0;

BufferedInputStream in =?new?BufferedInputStream(new?FileInputStream(

file));

//?打開HSSFWorkbook

POIFSFileSystem fs =?new?POIFSFileSystem(in);

HSSFWorkbook wb =?new?HSSFWorkbook(fs);

HSSFCell cell =?null;

for?(int?sheetIndex = 0; sheetIndex < wb.getNumberOfSheets(); sheetIndex++) {

HSSFSheet st = wb.getSheetAt(sheetIndex);

//?第一行為標題，不取

for?(int?rowIndex = ignoreRows; rowIndex <= st.getLastRowNum(); rowIndex++) {

HSSFRow row = st.getRow(rowIndex);

if?(row ==?null) {

continue;

}

int?tempRowSize = row.getLastCellNum() + 1;

if?(tempRowSize > rowSize) {

rowSize = tempRowSize;

}

String[] values =?new?String[rowSize];

Arrays.fill(values,?"");

boolean?hasValue =?false;

for?(short?columnIndex = 0; columnIndex <= row.getLastCellNum(); columnIndex++) {

String value =?"";

cell = row.getCell(columnIndex);

if?(cell !=?null) {

//?注意：一定要設成這個，否則可能會出現亂碼

cell.setEncoding(HSSFCell.ENCODING_UTF_16);

switch?(cell.getCellType()) {

case?HSSFCell.CELL_TYPE_STRING:

value = cell.getStringCellValue();

break;

case?HSSFCell.CELL_TYPE_NUMERIC:

if?(HSSFDateUtil.isCellDateFormatted(cell)) {

Date date = cell.getDateCellValue();

if?(date !=?null) {

value =?new?SimpleDateFormat("yyyy-MM-dd")

.format(date);

}?else?{

value =?"";

}

}?else?{

value =?new?DecimalFormat("0").format(cell

.getNumericCellValue());

}

break;

case?HSSFCell.CELL_TYPE_FORMULA:

//?導入時如果為公式生成的數據則無值

if?(!cell.getStringCellValue().equals("")) {

value = cell.getStringCellValue();

}?else?{

value = cell.getNumericCellValue() +?"";

}

break;

case?HSSFCell.CELL_TYPE_BLANK:

break;

case?HSSFCell.CELL_TYPE_ERROR:

value =?"";

break;

case?HSSFCell.CELL_TYPE_BOOLEAN:

value = (cell.getBooleanCellValue() ==?true???"Y"

:?"N");

break;

default:

value =?"";

}

}

if?(columnIndex == 0 && value.trim().equals("")) {

break;

}

values[columnIndex] =?rightTrim(value);

hasValue =?true;

}

if?(hasValue) {

result.add(values);

}

}

}

in.close();

String[][] returnArray =?new?String[result.size()][rowSize];

for?(int?i = 0; i < returnArray.length; i++) {

returnArray[i] = (String[]) result.get(i);

}

return?returnArray;

}

/**

*?去掉字符串右邊的空格

*?@param?str?要處理的字符串

*?@return?處理后的字符串

*/

public?static?String rightTrim(String str) {

if?(str ==?null) {

return?"";

}

int?length = str.length();

for?(int?i = length - 1; i >= 0; i--) {

if?(str.charAt(i) != 0x20) {

break;

}

length--;

}

return?str.substring(0, length);

}

}

總結

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