Java POI 读取Office excel (2003,2007)及相关jar包
poi-3.7-20101029.jar，下载地址：http://download.csdn.net/detail/evangel_z/4107089
geronimo-stax-api_1.0_spec-1.0.jar，下载地址：http://download.csdn.net/detail/evangel_z/4107083
xmlbeans-2.3.0.jar，下载地址：http://download.csdn.net/detail/evangel_z/4107140
poi-ooxml-3.7-20101029.jar，下载地址：http://download.csdn.net/detail/evangel_z/4107145
poi-ooxml-schemas-3.7-20101029.jar，下载地址：http://download.csdn.net/detail/evangel_z/4108997
以上5个jar，就可读取Excel 2003；
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读取Excel 2007，请加上dom4j-1.6.1.jar，下载地址：http://download.csdn.net/detail/evangel_z/6739735
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poi-3.6-20091214.jar，下载地址：http://download.csdn.net/detail/evangel_z/3895051
poi-contrib-3.6-20091214.jar，下载地址： http://download.csdn.net/detail/evangel_z/4107197poi-scratch.6-20091214.jar，下载地址：http://download.csdn.net/detail/evangel_z/4107204
读取excel 文件的 java 代码：import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.io.PushbackInputStream;
import java.text.DecimalFormat;
import java.text.SimpleDateFormat;
import java.util.LinkedList;
import java.util.List;
import org.apache.poi.POIXMLDocument;
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;
import org.apache.poi.xssf.usermodel.XSSFCell;
import org.apache.poi.xssf.usermodel.XSSFRow;
import org.apache.poi.xssf.usermodel.XSSFSheet;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
public class read_Excel{
/**
* 对外提供读取excel 的方法
*/
public static List<List<Object>> readExcel(File file) throws IOException{
List<List<Object>> list = new LinkedList<List<Object>>();
InputStream inp;
try {
inp = new FileInputStream(file);
if(! inp.markSupported()) {
inp = new PushbackInputStream(inp, 8);
}
try {
if(POIFSFileSystem.hasPOIFSHeader(inp)) {
list = read2003Excel(file);
}
if(POIXMLDocument.hasOOXMLHeader(inp)) {
list = read2007Excel(file);
}
} catch (IOException e) {
throw new IOException("不支持的文件类型");
}
} catch (FileNotFoundException e) {
e.printStackTrace();
}
return list;
}
/**
* 读取 office 2003 excel
*
* @throws IOException
* @throws FileNotFoundException
*/
private static List<List<Object>> read2003Excel(File file)
throws IOException {
List<List<Object>> list = new LinkedList<List<Object>>();
HSSFWorkbook hwb = new HSSFWorkbook(new FileInputStream(file));
HSSFSheet sheet = hwb.getSheetAt(0);
Object value = null;
HSSFRow row = null;
HSSFCell cell = null;
System.out.println("读取office 2003 excel内容如下：");
for (int i = sheet.getFirstRowNum(); i <= sheet
.getPhysicalNumberOfRows(); i++) {
row = sheet.getRow(i);
if (row == null) {
continue;
}
List<Object> linked = new LinkedList<Object>();
for (int j = row.getFirstCellNum(); j <= row.getLastCellNum(); j++) {
cell = row.getCell(j);
if (cell == null) {
continue;
}
DecimalFormat df = new DecimalFormat("0");// 格式化 number String
// 字符
SimpleDateFormat sdf = new SimpleDateFormat(
"yyyy-MM-dd HH:mm:ss");// 格式化日期字符串
DecimalFormat nf = new DecimalFormat("0.00");// 格式化数字
switch (cell.getCellType()) {
case XSSFCell.CELL_TYPE_STRING:
// System.out.println(i + "行" + j + " 列 is String type");
value = cell.getStringCellValue();
System.out.print(" " + value + " ");
break;
case XSSFCell.CELL_TYPE_NUMERIC:
// System.out.println(i + "行" + j
// + " 列 is Number type ; DateFormt:"
// + cell.getCellStyle().getDataFormatString());
if ("@".equals(cell.getCellStyle().getDataFormatString())) {
value = df.format(cell.getNumericCellValue());
} else if ("General".equals(cell.getCellStyle()
.getDataFormatString())) {
value = nf.format(cell.getNumericCellValue());
} else {
value = sdf.format(HSSFDateUtil.getJavaDate(cell
.getNumericCellValue()));
}
System.out.print(" " + value + " ");
break;
case XSSFCell.CELL_TYPE_BOOLEAN:
// System.out.println(i + "行" + j + " 列 is Boolean type");
value = cell.getBooleanCellValue();
System.out.print(" " + value + " ");
break;
case XSSFCell.CELL_TYPE_BLANK:
// System.out.println(i + "行" + j + " 列 is Blank type");
value = "";
System.out.print(" " + value + " ");
break;
default:
// System.out.println(i + "行" + j + " 列 is default type");
value = cell.toString();
System.out.print(" " + value + " ");
}
if (value == null || "".equals(value)) {
continue;
}
linked.add(value);
}
System.out.println("");
list.add(linked);
}
return list;
}
/**
* 读取Office 2007 excel
*/
private static List<List<Object>> read2007Excel(File file)
throws IOException {
List<List<Object>> list = new LinkedList<List<Object>>();
// String path = System.getProperty("user.dir") +
// System.getProperty("file.separator")+"dd.xlsx";
// System.out.println("路径："+path);
// 构造 XSSFWorkbook 对象，strPath 传入文件路径
XSSFWorkbook xwb = new XSSFWorkbook(new FileInputStream(file));
// 读取第一章表格内容
XSSFSheet sheet = xwb.getSheetAt(0);
Object value = null;
XSSFRow row = null;
XSSFCell cell = null;
System.out.println("读取office 2007 excel内容如下：");
for (int i = sheet.getFirstRowNum(); i <= sheet
.getPhysicalNumberOfRows(); i++) {
row = sheet.getRow(i);
if (row == null) {
continue;
}
List<Object> linked = new LinkedList<Object>();
for (int j = row.getFirstCellNum(); j <= row.getLastCellNum(); j++) {
cell = row.getCell(j);
if (cell == null) {
continue;
}
DecimalFormat df = new DecimalFormat("0");// 格式化 number String
// 字符
SimpleDateFormat sdf = new SimpleDateFormat(
"yyyy-MM-dd HH:mm:ss");// 格式化日期字符串
DecimalFormat nf = new DecimalFormat("0.00");// 格式化数字
switch (cell.getCellType()) {
case XSSFCell.CELL_TYPE_STRING:
// System.out.println(i + "行" + j + " 列 is String type");
value = cell.getStringCellValue();
System.out.print(" " + value + " ");
break;
case XSSFCell.CELL_TYPE_NUMERIC:
// System.out.println(i + "行" + j
// + " 列 is Number type ; DateFormt:"
// + cell.getCellStyle().getDataFormatString());
if ("@".equals(cell.getCellStyle().getDataFormatString())) {
value = df.format(cell.getNumericCellValue());
} else if ("General".equals(cell.getCellStyle()
.getDataFormatString())) {
value = nf.format(cell.getNumericCellValue());
} else {
value = sdf.format(HSSFDateUtil.getJavaDate(cell
.getNumericCellValue()));
}
System.out.print(" " + value + " ");
break;
case XSSFCell.CELL_TYPE_BOOLEAN:
// System.out.println(i + "行" + j + " 列 is Boolean type");
value = cell.getBooleanCellValue();
System.out.print(" " + value + " ");
break;
case XSSFCell.CELL_TYPE_BLANK:
// System.out.println(i + "行" + j + " 列 is Blank type");
value = "";
// System.out.println(value);
break;
default:
// System.out.println(i + "行" + j + " 列 is default type");
value = cell.toString();
System.out.print(" " + value + " ");
}
if (value == null || "".equals(value)) {
continue;
}
linked.add(value);
}
System.out.println("");
list.add(linked);
}
return list;
}
}