jexcel使用
package excel.jxl;import java.io.File;import java.io.FileOutputStream;import java.io.OutputStream;import java.util.ArrayList;import java.util.Date;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,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(intcol,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,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.NumberlabelNF = 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 */ public ArrayList<String> readDataFromExcel(File inputFile, int inputFileSheetIndex){ ArrayList<String> list = new 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 for (int colIndex = 0; colIndex < sheet.getColumns(); colIndex++) {//列 cell = sheet.getCell(colIndex, rowIndex); //System.out.println(cell.getContents()); list.add(cell.getContents()); } } book.close(); return list; } /** * 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); jxl.readDataFromExcel(new File(filePath),0); jxl.openExcel("C:/Program Files/Microsoft Office/OFFICE11/EXCEL.EXE",filePath); }}
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