java 对EXCEL 的操作
import java.awt.List;
import java.io.File;
import java.io.FileOutputStream;
import java.io.OutputStream;
import java.util.ArrayList;
import java.util.Date;
import java.util.LinkedList;
import jxl.Cell;
import jxl.CellType;
import jxl.Sheet;
import jxl.Workbook;
import jxl.WorkbookSettings;
import jxl.format.Alignment;
import jxl.format.Border;
import jxl.format.BorderLineStyle;
import jxl.format.Colour;
import jxl.format.VerticalAlignment;
import jxl.write.Formula;
import jxl.write.Label;
import jxl.write.NumberFormat;
import jxl.write.WritableCellFeatures;
import jxl.write.WritableCellFormat;
import jxl.write.WritableFont;
import jxl.write.WritableSheet;
import jxl.write.WritableWorkbook;
import jxl.write.WriteException;
public class JExcelUtils {
/**
* 生成Excel文件
*
* @param path
* 文件路径
* @param sheetName
* 工作表名称
* @param dataTitles
* 数据标题
*/
public void createExcelFile(String path, String sheetName,
String[] dataTitles) {
WritableWorkbook workbook;
try {
OutputStream os = new FileOutputStream(path);
workbook = Workbook.createWorkbook(os);
WritableSheet sheet = workbook.createSheet(sheetName, 0); // 添加第一个工作表
initialSheetSetting(sheet);
Label label;
for (int i = 0; i < dataTitles.length; i++) {
// Label(列号,行号,内容,风格)
label = new Label(i, 0, dataTitles[i], getTitleCellFormat());
sheet.addCell(label);
}
// 插入一行
insertRowData(sheet, 1, new String[] { "200201001", "张三", "100",
"60", "100", "260" },
getDataCellFormat(CellType.STRING_FORMULA));
// 一个一个插入行
label = new Label(0, 2, "200201002",
getDataCellFormat(CellType.STRING_FORMULA));
sheet.addCell(label);
label = new Label(1, 2, "李四",
getDataCellFormat(CellType.STRING_FORMULA));
sheet.addCell(label);
insertOneCellData(sheet, 2, 2, 70.5,
getDataCellFormat(CellType.NUMBER));
insertOneCellData(sheet, 3, 2, 90.523,
getDataCellFormat(CellType.NUMBER));
insertOneCellData(sheet, 4, 2, 60.5,
getDataCellFormat(CellType.NUMBER));
insertFormula(sheet, 5, 2, "C3+D3+E3",
getDataCellFormat(CellType.NUMBER_FORMULA));
// 插入日期
mergeCellsAndInsertData(sheet, 0, 3, 5, 3, new Date(),
getDataCellFormat(CellType.DATE));
workbook.write();
workbook.close();
} catch (Exception e) {
e.printStackTrace();
}
}
/**
* 初始化表格属性
*
* @param sheet
*/
public void initialSheetSetting(WritableSheet sheet) {
try {
// sheet.getSettings().setProtected(true); //设置xls的保护，单元格为只读的
sheet.getSettings().setDefaultColumnWidth(10); // 设置列的默认宽度
// sheet.setRowView(2,false);//行高自动扩展
// setRowView(int row, int height);--行高
// setColumnView(int col,int width); --列宽
sheet.setColumnView(0, 20);// 设置第一列宽度
} catch (Exception e) {
e.printStackTrace();
}
}
/**
* 插入公式
*
* @param sheet
* @param col
* @param row
* @param formula
* @param format
*/
public void insertFormula(WritableSheet sheet, Integer col, Integer row,
String formula, WritableCellFormat format) {
try {
Formula f = new Formula(col, row, formula, format);
sheet.addCell(f);
} catch (Exception e) {
e.printStackTrace();
}
}
/**
* 插入一行数据
*
* @param sheet
* 工作表
* @param row
* 行号
* @param content
* 内容
* @param format
* 风格
*/
public void insertRowData(WritableSheet sheet, Integer row,
String[] dataArr, WritableCellFormat format) {
try {
Label label;
for (int i = 0; i < dataArr.length; i++) {
label = new Label(i, row, dataArr[i], format);
sheet.addCell(label);
}
} catch (Exception e) {
e.printStackTrace();
}
}
/**
* 插入单元格数据
*
* @param sheet
* @param col
* @param row
* @param data
*/
public void insertOneCellData(WritableSheet sheet, Integer col,
Integer row, Object data, WritableCellFormat format) {
try {
if (data instanceof Double) {
jxl.write.Number labelNF = new jxl.write.Number(col, row,
(Double) data, format);
sheet.addCell(labelNF);
} else if (data instanceof Boolean) {
jxl.write.Boolean labelB = new jxl.write.Boolean(col, row,
(Boolean) data, format);
sheet.addCell(labelB);
} else if (data instanceof Date) {
jxl.write.DateTime labelDT = new jxl.write.DateTime(col, row,
(Date) data, format);
sheet.addCell(labelDT);
setCellComments(labelDT, "这是个创建表的日期说明！");
} else {
Label label = new Label(col, row, data.toString(), format);
sheet.addCell(label);
}
} catch (Exception e) {
e.printStackTrace();
}
}
/**
* 合并单元格，并插入数据
*
* @param sheet
* @param col_start
* @param row_start
* @param col_end
* @param row_end
* @param data
* @param format
*/
public void mergeCellsAndInsertData(WritableSheet sheet, Integer col_start,
Integer row_start, Integer col_end, Integer row_end, Object data,
WritableCellFormat format) {
try {
sheet.mergeCells(col_start, row_start, col_end, row_end);// 左上角到右下角
insertOneCellData(sheet, col_start, row_start, data, format);
} catch (Exception e) {
e.printStackTrace();
}
}
/**
* 给单元格加注释
*
* @param label
* @param comments
*/
public void setCellComments(Object label, String comments) {
WritableCellFeatures cellFeatures = new WritableCellFeatures();
cellFeatures.setComment(comments);
if (label instanceof jxl.write.Number) {
jxl.write.Number num = (jxl.write.Number) label;
num.setCellFeatures(cellFeatures);
} else if (label instanceof jxl.write.Boolean) {
jxl.write.Boolean bool = (jxl.write.Boolean) label;
bool.setCellFeatures(cellFeatures);
} else if (label instanceof jxl.write.DateTime) {
jxl.write.DateTime dt = (jxl.write.DateTime) label;
dt.setCellFeatures(cellFeatures);
} else {
Label _label = (Label) label;
_label.setCellFeatures(cellFeatures);
}
}
/**
* 读取excel
*
* @param inputFile
* @param inputFileSheetIndex
* @throws Exception
* @return linkedList<ArrayList>
*/
public LinkedList<ArrayList<String>> readDataFromExcel(File inputFile,
int inputFileSheetIndex) {
ArrayList<String> list = null;
LinkedList<ArrayList<String>> content = new LinkedList<ArrayList<String>>();
Workbook book = null;
Cell cell = null;
WorkbookSettings setting = new WorkbookSettings();
java.util.Locale locale = new java.util.Locale("zh", "CN");
setting.setLocale(locale);
setting.setEncoding("ISO-8859-1");
try {
book = Workbook.getWorkbook(inputFile, setting);
} catch (Exception e) {
e.printStackTrace();
}
Sheet sheet = book.getSheet(inputFileSheetIndex);
for (int rowIndex = 0; rowIndex < sheet.getRows(); rowIndex++) {// 行
list = new ArrayList<String>();
for (int colIndex = 0; colIndex < sheet.getColumns(); colIndex++) {// 列
cell = sheet.getCell(colIndex, rowIndex);
// System.out.println(cell.getContents());
list.add(cell.getContents());
}
content.add(list);
}
book.close();
return content;
}
/**
* 得到数据表头格式
*
* @return
*/
public WritableCellFormat getTitleCellFormat() {
WritableCellFormat wcf = null;
try {
// 字体样式
WritableFont wf = new WritableFont(WritableFont.TIMES, 12,
WritableFont.NO_BOLD, false);// 最后一个为是否italic
wf.setColour(Colour.RED);
wcf = new WritableCellFormat(wf);
// 对齐方式
wcf.setAlignment(Alignment.CENTRE);
wcf.setVerticalAlignment(VerticalAlignment.CENTRE);
// 边框
wcf.setBorder(Border.ALL, BorderLineStyle.THIN);
// 背景色
wcf.setBackground(Colour.GREY_25_PERCENT);
} catch (WriteException e) {
e.printStackTrace();
}
return wcf;
}
/**
* 得到数据格式
*
* @return
*/
public WritableCellFormat getDataCellFormat(CellType type) {
WritableCellFormat wcf = null;
try {
// 字体样式
if (type == CellType.NUMBER || type == CellType.NUMBER_FORMULA) {// 数字
NumberFormat nf = new NumberFormat("#.00");
wcf = new WritableCellFormat(nf);
} else if (type == CellType.DATE || type == CellType.DATE_FORMULA) {// 日期
jxl.write.DateFormat df = new jxl.write.DateFormat(
"yyyy-MM-dd hh:mm:ss");
wcf = new jxl.write.WritableCellFormat(df);
} else {
WritableFont wf = new WritableFont(WritableFont.TIMES, 10,
WritableFont.NO_BOLD, false);// 最后一个为是否italic
wcf = new WritableCellFormat(wf);
}
// 对齐方式
wcf.setAlignment(Alignment.CENTRE);
wcf.setVerticalAlignment(VerticalAlignment.CENTRE);
// 边框
wcf.setBorder(Border.LEFT, BorderLineStyle.THIN);
wcf.setBorder(Border.BOTTOM, BorderLineStyle.THIN);
wcf.setBorder(Border.RIGHT, BorderLineStyle.THIN);
// 背景色
wcf.setBackground(Colour.WHITE);
wcf.setWrap(true);// 自动换行
} catch (WriteException e) {
e.printStackTrace();
}
return wcf;
}
/**
* 打开文件看看
*
* @param exePath
* @param filePath
*/
public void openExcel(String exePath, String filePath) {
Runtime r = Runtime.getRuntime();
String cmd[] = { exePath, filePath };
try {
r.exec(cmd);
} catch (Exception e) {
e.printStackTrace();
}
}
public static void main(String[] args) {
String[] titles = { "学号", "姓名", "语文", "数学", "英语", "总分" };
JExcelUtils jxl = new JExcelUtils();
String filePath = "E:/test.xls";
jxl.createExcelFile(filePath, "成绩单", titles);
System.out.println(jxl.readDataFromExcel(new File(filePath), 0));
jxl.openExcel("C:/Program Files/Microsoft Office/OFFICE11/EXCEL.EXE",
filePath);
}
}