java
首先需要一个JXL包
生成EXCEL需要手动写查询语句把ORACLE数据库中的数据查询出来，再通过操作写到EXCEL文件里面。
通过EXCEL把数据读取到ORACLE，同样需要去读取EXCEL工作薄里面的内容，再通过INSERT语句去插入数据库操作。
package common.util; import jxl.*; import jxl.format.UnderlineStyle; import jxl.write.*; import jxl.write.Number; import jxl.write.Boolean; import java.io.*; /** * Created by IntelliJ IDEA. * User: xl * Date: 2005-7-17 * Time: 9:33:22 * To change this template use File | Settings | File Templates. */ public class ExcelHandle { public ExcelHandle() { } /** * 读取Excel * * @param filePath */ public static void readExcel(String filePath) { try { InputStream is = new FileInputStream(filePath); Workbook rwb = Workbook.getWorkbook(is); //Sheet st = rwb.getSheet('0')这里有两种方法获取sheet表,1为名字，而为下标，从0开始 Sheet st = rwb.getSheet('original'); Cell c00 = st.getCell(0,0); //通用的获取cell值的方式,返回字符串 String strc00 = c00.getContents(); //获得cell具体类型值的方式 if(c00.getType() == CellType.LABEL) { LabelCell labelc00 = (LabelCell)c00; strc00 = labelc00.getString(); } //输出 System.out.println(strc00); //关闭 rwb.close(); } catch(Exception e) { e.printStackTrace(); } } /** * 输出Excel * * @param os */ public static void writeExcel(OutputStream os) { try { /** * 只能通过API提供的工厂方法来创建Workbook，而不能使用WritableWorkbook的构造函数， * 因为类WritableWorkbook的构造函数为protected类型 * method(1)直接从目标文件中读取WritableWorkbook wwb = Workbook.createWorkbook(new File(targetfile)); * method(2)如下实例所示 将WritableWorkbook直接写入到输出流 */ WritableWorkbook wwb = Workbook.createWorkbook(os); //创建Excel工作表 指定名称和位置 WritableSheet ws = wwb.createSheet('Test Sheet 1',0); //**************往工作表中添加数据***************** //1.添加Label对象 Label label = new Label(0,0,'this is a label test'); ws.addCell(label); //添加带有字型Formatting对象 WritableFont wf = new WritableFont(WritableFont.TIMES,18,WritableFont.BOLD,true); WritableCellFormat wcf = new WritableCellFormat(wf); Label labelcf = new Label(1,0,'this is a label test',wcf); ws.addCell(labelcf); //添加带有字体颜色的Formatting对象 WritableFont wfc = new WritableFont(WritableFont.ARIAL,10,WritableFont.NO_BOLD,false, UnderlineStyle.NO_UNDERLINE,jxl.format.Colour.RED); WritableCellFormat wcfFC = new WritableCellFormat(wfc); Label labelCF = new Label(1,0,'This is a Label Cell',wcfFC); ws.addCell(labelCF); //2.添加Number对象 Number labelN = new Number(0,1,3.1415926); ws.addCell(labelN); //添加带有formatting的Number对象
NumberFormat nf = new NumberFormat('#.##'); WritableCellFormat wcfN = new WritableCellFormat(nf); Number labelNF = new jxl.write.Number(1,1,3.1415926,wcfN); ws.addCell(labelNF); //3.添加Boolean对象 Boolean labelB = new jxl.write.Boolean(0,2,false); ws.addCell(labelB); //4.添加DateTime对象 jxl.write.DateTime labelDT = new jxl.write.DateTime(0,3,new java.util.Date()); ws.addCell(labelDT); //添加带有formatting的DateFormat对象 DateFormat df = new DateFormat('dd MM yyyy hh:mm:ss'); WritableCellFormat wcfDF = new WritableCellFormat(df); DateTime labelDTF = new DateTime(1,3,new java.util.Date(),wcfDF); ws.addCell(labelDTF); //添加图片对象,jxl只支持png格式图片 File image = new File('f:\\2.png'); WritableImage wimage = new WritableImage(0,1,2,2,image); ws.addImage(wimage); //写入工作表 wwb.write(); wwb.close(); } catch(Exception e) { e.printStackTrace(); } } /** * 拷贝后,进行修改,其中file1为被copy对象，file2为修改后创建的对象 * 尽单元格原有的格式化修饰是不能去掉的，我们还是可以将新的单元格修饰加上去， * 以使单元格的内容以不同的形式表现 * @param file1 * @param file2 */ public static void modifyExcel(File file1,File file2) { try { Workbook rwb = Workbook.getWorkbook(file1); WritableWorkbook wwb = Workbook.createWorkbook(file2,rwb);//copy WritableSheet ws = wwb.getSheet(0); WritableCell wc = ws.getWritableCell(0,0); //判断单元格的类型,做出相应的转换 if(wc.getType == CellType.LABEL) { Label label = (Label)wc; label.setString('The value has been modified'); } wwb.write(); wwb.close(); rwb.close(); } catch(Exception e) { e.printStackTrace(); } } //测试 public static void main(String[] args) { try { //读Excel ExcelHandle.readExcel('f:/testRead.xls'); //输出Excel File fileWrite = new File('f:/testWrite.xls'); fileWrite.createNewFile(); OutputStream os = new FileOutputStream(fileWrite); ExcelHandle.writeExcel(os); //修改Excel ExcelHandle.modifyExcel(new file(''),new File('')); } catch(Exception e) { e.printStackTrace(); } } }
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