使用JXL.JAR包,只能转换2007以前的EXCEL文件,代码如下:
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.InputStream;
import org.jdom.Document;
import org.jdom.Element;
import org.jdom.output.Format;
import org.jdom.output.XMLOutputter;
import jxl.Cell;
import jxl.Sheet;
import jxl.Workbook;
public class ExcelToXML_JXL_2003 {
public static void main(String[] args) throws Exception{
Excel_2003();
}
public static void Excel_2003() throws Exception{
// 这里是生成工作簿
Workbook wb = null;
// 创建根节点;
Element root = new Element("sheet");
// 将根节点添加到文档中;
Document Doc = new Document(root);
InputStream instream = new FileInputStream("d:/AAA.xls");
wb = Workbook.getWorkbook(instream);
// 获取第一张Sheet表
Sheet sheet = wb.getSheet(0);
// 获取Sheet表中所包含的总列数
int columns = sheet.getColumns();
// 获取Sheet表中所包含的总行数
int rows = sheet.getRows();
// 获取指定单元格的对象引用
for (int i = 0; i < rows; i++) {
Element elements = new Element("tr");
for (int j = 0; j < columns; j++) {
Cell cell = sheet.getCell(j, i);
// str[i][j]=cell.getContents();//在此创建一个二维数组,获取单元格的数据
// 生成xml文件
elements.addContent(new Element("cell").setText(cell.getContents())); // 填写单元格的数据。
root.addContent(elements.detach());
}
}
Format format = Format.getPrettyFormat();
XMLOutputter XMLOut = new XMLOutputter(format);
XMLOut.output(Doc, new FileOutputStream("d:/books_xls.xml"));
System.out.println("Excel转换成XML成功!");
}
}
使用poi.jar,相关的包:
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.io.OutputStream;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
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.ss.usermodel.Workbook;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import org.jdom.Document;
import org.jdom.Element;
import org.jdom.output.Format;
import org.jdom.output.XMLOutputter;
public class ExcelToXML_POI_2007 {
/**
* 读取Excel文档
* @param filePath
* @throws Exception
*/
public static void read(String filePath) throws Exception {
String fileType = filePath.substring(filePath.lastIndexOf(".") + 1, filePath.length());
InputStream stream = new FileInputStream(filePath);
Workbook wb = null;
if (fileType.equals("xls")) {
wb = new HSSFWorkbook(stream);
} else if (fileType.equals("xlsx")) {
wb = new XSSFWorkbook(stream);
} else {
System.out.println("您输入的excel格式不正确");
}
Sheet sheet1 = wb.getSheetAt(0);
for (Row row : sheet1) {
for (Cell cell : row) {
System.out.print(cell.getStringCellValue() + " ");
}
System.out.println();
}
}
/**
* 生成Excel文档
* @param outPath
* @return
* @throws Exception
*/
public static boolean write(String outPath) throws Exception {
String fileType = outPath.substring(outPath.lastIndexOf(".") + 1, outPath.length());
System.out.println(fileType);
// 创建工作文档对象
Workbook wb = null;
if (fileType.equals("xls")) {
wb = new HSSFWorkbook();
} else if (fileType.equals("xlsx")) {
wb = new XSSFWorkbook();
} else {
System.out.println("您的文档格式不正确!");
return false;
}
// 创建sheet对象
Sheet sheet1 = (Sheet) wb.createSheet("sheet1");
// 循环写入行数据
for (int i = 0; i < 5; i++) {
Row row = (Row) sheet1.createRow(i);
// 循环写入列数据
for (int j = 0; j < 8; j++) {
Cell cell = row.createCell(j);
cell.setCellValue("测试" + j);
}
}
// 创建文件流
OutputStream stream = new FileOutputStream(outPath);
// 写入数据
wb.write(stream);
// 关闭文件流
stream.close();
return true;
}
/**
* Excel转换成XML
* @param wb
* @throws Exception
*/
private static void excelToXML(String filePath) throws Exception {
String fileType = filePath.substring(filePath.lastIndexOf(".") + 1, filePath.length());
InputStream stream = new FileInputStream(filePath);
Workbook wb = null;
if (fileType.equals("xls")) {
wb = new HSSFWorkbook(stream);
} else if (fileType.equals("xlsx")) {
wb = new XSSFWorkbook(stream);
} else {
System.out.println("您输入的excel格式不正确");
}
// 创建根节点;
Element root = new Element("sheet");
// 将根节点添加到文档中;
Document Doc = new Document(root);
Sheet sheet1 = wb.getSheetAt(0);
for (Row row : sheet1) {
Element elements = new Element("tr");
for (Cell cell : row) {
// System.out.print(cell.getStringCellValue() + " ");
elements.addContent(new Element("cell").setText(cell.getStringCellValue())); // 填写单元格的数据。
root.addContent(elements.detach());
}
Format format = Format.getPrettyFormat();
XMLOutputter XMLOut = new XMLOutputter(format);
XMLOut.output(Doc, new FileOutputStream("d:/books_xls.xml"));
System.out.println();
}
}
public static void main(String[] args) {
try {
ExcelToXML_POI_2007.excelToXML("d:/AAA.xlsx");
// ExcelToXML2.write("D:" + File.separator + "out.xlsx");
// ExcelToXML2.read("D:" + File.separator + "out.xlsx");
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
另一种写法:
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.List;
import org.apache.poi.hssf.usermodel.HSSFCell;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
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.ss.usermodel.Workbook;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import org.jdom.Document;
import org.jdom.Element;
import org.jdom.output.Format;
import org.jdom.output.XMLOutputter;
/**
*
* @描述:测试excel读取
* 导入的jar包
* poi-3.8-beta3-20110606.jar
* poi-ooxml-3.8-beta3-20110606.jar
* poi-examples-3.8-beta3-20110606.jar
* poi-excelant-3.8-beta3-20110606.jar
* poi-ooxml-schemas-3.8-beta3-20110606.jar
* poi-scratchpad-3.8-beta3-20110606.jar
* xmlbeans-2.3.0.jar
* dom4j-1.6.1.jar
* jar包官网下载地址:http://poi.apache.org/download.html
* 下载poi-bin-3.8-beta3-20110606.zipp
*/
public class ExeclToXML {
/** 总行数 */
private int totalRows = 0;
/** 总列数 */
private int totalCells = 0;
/** 错误信息 */
private String errorInfo;
/** 构造方法 */
public ExeclToXML() {}
/**
* @描述:得到总行数
*/
public int getTotalRows() {
return totalRows;
}
/**
* @描述:得到总列数
*/
public int getTotalCells() {
return totalCells;
}
/**
* @描述:得到错误信息
*/
public String getErrorInfo() {
return errorInfo;
}
/**
* @描述:是否是2003的excel,返回true是2003
*/
public static boolean isExcel2003(String filePath) {
return filePath.matches("^.+\\.(?i)(xls)$");
}
/**
* @描述:是否是2007的excel,返回true是2007
*/
public static boolean isExcel2007(String filePath) {
return filePath.matches("^.+\\.(?i)(xlsx)$");
}
/**
* @描述:验证excel文件
*/
public boolean validateExcel(String filePath) {
/** 检查文件名是否为空或者是否是Excel格式的文件 */
if (filePath == null || !(isExcel2003(filePath) || isExcel2007(filePath))) {
errorInfo = "文件名不是excel格式";
return false;
}
/** 检查文件是否存在 */
File file = new File(filePath);
if (file == null || !file.exists()) {
errorInfo = "文件不存在";
return false;
}
return true;
}
/**
* @描述:根据文件名读取excel文件
*/
public List<List<String>> read(String filePath) {
List<List<String>> dataLst = new ArrayList<List<String>>();
InputStream is = null;
try {
/** 验证文件是否合法 */
if (!validateExcel(filePath)) {
System.out.println(errorInfo);
return null;
}
/** 判断文件的类型,是2003还是2007 */
boolean isExcel2003 = true;
if (isExcel2007(filePath)) {
isExcel2003 = false;
}
/** 调用本类提供的根据流读取的方法 */
File file = new File(filePath);
is = new FileInputStream(file);
dataLst = read(is, isExcel2003);
is.close();
} catch (Exception ex) {
ex.printStackTrace();
} finally {
if (is != null) {
try {
is.close();
} catch (IOException e) {
is = null;
e.printStackTrace();
}
}
}
/** 返回最后读取的结果 */
return dataLst;
}
/**
* @throws Exception
* @描述:根据流读取Excel文件
*/
public List<List<String>> read(InputStream inputStream, boolean isExcel2003) throws Exception {
List<List<String>> dataLst = null;
try {
/** 根据版本选择创建Workbook的方式 */
Workbook wb = null;
if (isExcel2003) {
wb = new HSSFWorkbook(inputStream);
} else {
wb = new XSSFWorkbook(inputStream);
}
dataLst = read(wb);
} catch (IOException e) {
e.printStackTrace();
}
return dataLst;
}
/**
* @throws IOException
* @throws FileNotFoundException
* @描述:读取数据
*/
private List<List<String>> read(Workbook wb) throws Exception {
List<List<String>> dataLst = new ArrayList<List<String>>();
/** 得到第一个shell */
Sheet sheet = wb.getSheetAt(0);
/** 得到Excel的行数 */
this.totalRows = sheet.getPhysicalNumberOfRows();
/** 得到Excel的列数 */
if (this.totalRows >= 1 && sheet.getRow(0) != null) {
this.totalCells = sheet.getRow(0).getPhysicalNumberOfCells();
}
/** 循环Excel的行 */
for (int r = 0; r < this.totalRows; r++) {
Row row = sheet.getRow(r);
if (row == null) {
continue;
}
List<String> rowLst = new ArrayList<String>();
/** 循环Excel的列 */
for (int c = 0; c < this.getTotalCells(); c++) {
Cell cell = row.getCell(c);
String cellValue = "";
if (null != cell) {
// 以下是判断数据的类型
switch (cell.getCellType()) {
case HSSFCell.CELL_TYPE_NUMERIC: // 数字
cellValue = cell.getNumericCellValue() + "";
break;
case HSSFCell.CELL_TYPE_STRING: // 字符串
cellValue = cell.getStringCellValue();
break;
case HSSFCell.CELL_TYPE_BOOLEAN: // Boolean
cellValue = cell.getBooleanCellValue() + "";
break;
case HSSFCell.CELL_TYPE_FORMULA: // 公式
cellValue = cell.getCellFormula() + "";
break;
case HSSFCell.CELL_TYPE_BLANK: // 空值
cellValue = "";
break;
case HSSFCell.CELL_TYPE_ERROR: // 故障
cellValue = "非法字符";
break;
default:
cellValue = "未知类型";
break;
}
}
rowLst.add(cellValue);
}
/** 保存第r行的第c列 */
dataLst.add(rowLst);
}
/**Excel转换成XML*/
this.excelToXML(sheet);
return dataLst;
}
/***
* Excel转换成XML
* @param sheet
*/
private void excelToXML(Sheet sheet) throws Exception {
// 创建根节点;
Element root = new Element("sheet");
// 将根节点添加到文档中;
Document Doc = new Document(root);
// 获取指定单元格的对象引用
for (Row row : sheet) {
Element elements = new Element("tr");
for (Cell cell : row) {
elements.addContent(new Element("cell").setText(cell.getStringCellValue())); // 填写单元格的数据。
root.addContent(elements.detach());
}
}
Format format = Format.getPrettyFormat();
XMLOutputter XMLOut = new XMLOutputter(format);
XMLOut.output(Doc, new FileOutputStream("d:/books_xls.xml"));
// System.out.println("Excel转换成XML成功!");
}
/**
* @描述:main测试方法
*/
public static void main(String[] args) throws Exception {
ExeclToXML poi = new ExeclToXML();
// List<List<String>> list = poi.read("d:/AAA.xls");
List<List<String>> list = poi.read("d:/AAA.xlsx");
// if (list != null) {
// for (int i = 0; i < list.size(); i++) {
// System.out.print("第" + (i+1) + "行");
// List<String> cellList = list.get(i);
// for (int j = 0; j < cellList.size(); j++) {
// System.out.print(" 第" + (j + 1) + "列值:");
// System.out.print(" " + cellList.get(j));
// }
// System.out.println();
// }
// }
}
}