Java POI 写入Excel

最近正在做一个java的小项目，将txt中的数据读入到excel中，所以上网找了一些资料，发现这一个写的比较详细，没找到原作者，如果原作者反映侵权，可以给我说下，我马上删掉，谢谢。

Apache POI 是用Java编写的免费开源的跨平台的 Java API，Apache POI提供API给Java程式对Microsoft Office格式档案读和写的功能。

Apache POI 是创建和维护操作各种符合Office Open XML（OOXML）标准和微软的OLE 2复合文档格式（OLE2）的Java API。用它可以使用Java读取和创建,修改MS Excel文件.而且,还可以使用Java读取和创建MS Word和MSPowerPoint文件。Apache
POI 提供Java操作Excel解决方案（适用于Excel97-2008）。

如果处理.xlsx、docx、pptx的话可以试试Docx4j 。

Docx4j is a Java library for creating and manipulating Microsoft Open XML (Word docx, Powerpoint pptx, and Excel xlsx) files.

HSSF － 提供读写Microsoft Excel XLS格式档案的功能。
XSSF － 提供读写Microsoft Excel OOXML XLSX格式档案的功能。
HWPF － 提供读写Microsoft Word DOC格式档案的功能。
HSLF － 提供读写Microsoft PowerPoint格式档案的功能。
HDGF － 提供读Microsoft Visio格式档案的功能。
HPBF － 提供读Microsoft Publisher格式档案的功能。
HSMF － 提供读Microsoft Outlook格式档案的功能。

http://poi.apache.org/

Busy Developers' Guide to HSSF
and XSSF Features

版本：poi-3.8-20120326.jar

1、生成Workbook

Java代码


//生成Workbook

HSSFWorkbook wb = new HSSFWorkbook();

//添加Worksheet（不添加sheet时生成的xls文件打开时会报错）

@SuppressWarnings("unused")

Sheet sheet1 = wb.createSheet();

@SuppressWarnings("unused")

Sheet sheet2 = wb.createSheet();

@SuppressWarnings("unused")

Sheet sheet3 = wb.createSheet("new sheet");

@SuppressWarnings("unused")

Sheet sheet4 = wb.createSheet("rensanning");

//保存为Excel文件

FileOutputStream out = null;

try {

out = new FileOutputStream("c:\\text.xls");

wb.write(out);

} catch (IOException e) {

System.out.println(e.toString());

} finally {

try {

out.close();

} catch (IOException e) {

System.out.println(e.toString());

}

}

2、生成Workbook OOXML形式(.xlsx)

Java代码


//生成Workbook

XSSFWorkbook wb = new XSSFWorkbook();

//......

3、打开Workbook

Java代码


//方法一：使用WorkbookFactory

FileInputStream in = null;

Workbook wb = null;

try {

in = new FileInputStream(TEST_WORKBOOK_NAME);

wb = WorkbookFactory.create(in);

} catch (IOException e) {

System.out.println(e.toString());

} catch (InvalidFormatException e) {

System.out.println(e.toString());

} finally {

try {

in.close();

} catch (IOException e) {

System.out.println(e.toString());

}

}

System.out.println("====================Workbook====================");

System.out.println("Number of Sheets:" + wb.getNumberOfSheets());

System.out.println("Sheet3's name:" + wb.getSheetName(3));

System.out.println();

//方法二：使用POIFSFileSystem

try {

in = new FileInputStream(TEST_WORKBOOK_NAME);

POIFSFileSystem fs = new POIFSFileSystem(in);

wb = new HSSFWorkbook(fs);

} catch (IOException e) {

System.out.println(e.toString());

} finally {

try {

in.close();

} catch (IOException e) {

System.out.println(e.toString());

}

}

System.out.println("====================Workbook====================");

System.out.println("Number of Sheets:" + wb.getNumberOfSheets());

System.out.println("Sheet3's name:" + wb.getSheetName(3));

System.out.println();

4、打开加密的Workbook(读加密)

Java代码


FileInputStream input = new FileInputStream(TEST_WORKBOOK_NAME_ENCRYPTED);

BufferedInputStream binput = new BufferedInputStream(input);

POIFSFileSystem poifs = new POIFSFileSystem(binput);

Biff8EncryptionKey.setCurrentUserPassword(TEST_WORKBOOK_PASSWORD);

HSSFWorkbook wb = new HSSFWorkbook(poifs);

System.out.println("====================EncryptedWorkbook====================");

System.out.println("Number of Sheets:" + wb.getNumberOfSheets());

System.out.println("Sheet0's name:" + wb.getSheetName(0));

System.out.println();

5、追加Sheet

Java代码


Sheet sheet = wb.createSheet("append sheet");

6、复制Sheet

Java代码


wb.cloneSheet(1);

7、修改Sheet名称

Java代码


wb.setSheetName(i, "SheetName new");

8、删除Sheet

Java代码


wb.removeSheetAt(1);

9、设置下部Sheet名的Tab的第一个可见Tab

Java代码


//设置下部Sheet名的Tab的第一个可见Tab（以左的Sheet看不见）

wb.setFirstVisibleTab(2);

10、调整Sheet顺序

Java代码


wb.setSheetOrder("SheetName3", 1);

wb.setSheetOrder(wb.getSheetName(4), 0);

11、设置当前Sheet

t.setActiveSheet();

Java代码


//设置当前Sheet

wb.setActiveSheet(wb.getNumberOfSheets() - 1);

//（Excel的当前Sheet被设置，需要结合setSelected使用，不然下部Sheet名的Tab还是默认为第一个）

//（需要选择多个Sheet的话，每个Sheet调用setSelected(true)即可）

wb.getSheetAt(wb.getNumberOfSheets() - 1).setSelected(true);

12、固定窗口

Java代码


wb.getSheet("SheetName4").createFreezePane(2, 2);



13、分割窗口

Java代码


wb.getSheet("SheetName5").createSplitPane(2000, 2000, 0, 0, HSSFSheet.PANE_LOWER_LEFT);



14、Sheet缩放

Java代码


//setZoom(int numerator, int denominator)

//"numerator"÷"denominator" 例如： 3÷1＝3 那就是设置为300%

//扩大(200%)

wb.getSheet("sheetname1").setZoom(2, 1);

//缩小(50%)

wb.getSheet("sheetname2").setZoom(1, 2);



15、行列分组

Java代码


wb.getSheet("sheetname3").groupColumn(4, 7);

wb.getSheet("sheetname3").groupColumn(9, 12);

wb.getSheet("sheetname3").groupColumn(10, 11);

wb.getSheet("sheetname3").groupRow(5, 14);

wb.getSheet("sheetname3").groupRow(7, 13);

wb.getSheet("sheetname3").groupRow(16, 19);



16、关闭分组

Java代码


wb.getSheet("sheetname3").setColumnGroupCollapsed(10, true);

wb.getSheet("sheetname3").setRowGroupCollapsed(7, true);

17、插入行

Java代码


Row row1 = wb.getSheet("sheetname4").createRow(1);

Cell cell1_1 = row1.createCell(1);

cell1_1.setCellValue(123);

Row row4 = wb.getSheet("sheetname4").createRow(4);

Cell cell4_3 = row4.createCell(3);

cell4_3.setCellValue("中国");

18、删除行

Java代码


Row row = wb.getSheet("sheetname4").getRow(1);

wb.getSheet("sheetname4").removeRow(row);

19、移动行

Java代码


//******移动行只移动内容，不牵扯行的删除和插入

//移动行（把第1行和第2行移到第5行之后）

wb.getSheet("sheetname5").shiftRows(0, 1, 5);

//移动行（把第3行和第4行往上移动1行）

wb.getSheet("sheetname5").shiftRows(2, 3, -1);

20、修改行高

Java代码


//设置默认行高

wb.getSheet("sheetname6").setDefaultRowHeight((short)100);

//设置行高

wb.getSheet("sheetname6").getRow(2).setHeight((short)(100 * 20));

21、修改列宽

Java代码


//设置默认列宽

wb.getSheet("sheetname7").setDefaultColumnWidth(12);

//设置列宽

wb.getSheet("sheetname7").setColumnWidth(0, 5 * 256);

22、不显示网格线

Java代码


//不显示网格线

wb.getSheet("sheetname8").setDisplayGridlines(false);



23、设置分页

Java代码


//设置第一页：3行2列 （可以多次设置）

wb.getSheet("sheetname9").setRowBreak(2);

wb.getSheet("sheetname9").setColumnBreak(1);



24、添加，删除，合并单元格

Java代码


//追加行

for (int i = 0; i < 10; i++) {

Row row = wb.getSheet("sheetname10").createRow(i);

for (int j = 0; j < 10; j++) {

//添加单元格

Cell cell = row.createCell(j);

cell.setCellValue(i + 1);

}

//删除单元格

row.removeCell(row.getCell(5));

}

//合并单元格

//CellRangeAddress(int firstRow, int lastRow, int firstCol, int lastCol)

wb.getSheet("sheetname10").addMergedRegion(new CellRangeAddress(1, 4, 2, 3));



25、设置Header，Footer

Java代码


//Header

Header header = wb.getSheet("sheetname11").getHeader();

header.setLeft(HSSFHeader.startUnderline() +

HSSFHeader.font("宋体", "Italic") +

"文字文字" +

HSSFHeader.endUnderline());

header.setCenter(HSSFHeader.fontSize((short)16) +

HSSFHeader.startDoubleUnderline() +

HSSFHeader.startBold() +

"汉字汉字" +

HSSFHeader.endBold() +

HSSFHeader.endDoubleUnderline());

header.setRight("打印时间:" + HSSFHeader.date() + " " + HSSFHeader.time());

//Footer

Footer footer = wb.getSheet("sheetname11").getFooter();

footer.setLeft("Copyright @ rensanning");

footer.setCenter("Page:" + HSSFFooter.page() + " / " + HSSFFooter.numPages());

footer.setRight("File:" + HSSFFooter.file());





26、设置单元格值

Java代码


//boolean

Cell cell00 = rows[0].createCell(0);

boolean val00 = true;

cell00.setCellValue(val00);

//Calendar 格式化

CellStyle styleCalendar = wb.createCellStyle();

DataFormat formatCalendar = wb.createDataFormat();

styleCalendar.setDataFormat(formatCalendar.getFormat("yyyy/mm/dd"));

Cell cell11 = rows[1].createCell(0);

Calendar val11 = Calendar.getInstance();

cell11.setCellStyle(styleCalendar);

cell11.setCellValue(val11);

//Date 格式化

CellStyle styleDate = wb.createCellStyle();

DataFormat formatDate = wb.createDataFormat();

styleDate.setDataFormat(formatDate.getFormat("yyyy/mm/dd hh:mm"));

Cell cell21 = rows[2].createCell(0);

Date val21 = new Date();

cell21.setCellStyle(styleDate);

cell21.setCellValue(val21);

//double

Cell cell30 = rows[3].createCell(0);

double val30 = 1234.56;

cell30.setCellValue(val30);

//double 格式化

CellStyle styleDouble = wb.createCellStyle();

DataFormat formatDouble = wb.createDataFormat();

styleDouble.setDataFormat(formatDouble.getFormat("#,##0.00"));

Cell cell31 = rows[3].createCell(1);

double val31 = 1234.56;

cell31.setCellStyle(styleDouble);

cell31.setCellValue(val31);

//String

Cell cell40 = rows[4].createCell(0);

HSSFRichTextString val40 = new HSSFRichTextString("Test汉字");

cell40.setCellValue(val40);



27、设置单元格边线

Java代码


wb.getSheet("sheetname2").setColumnWidth(1, 4096);

Row row1 = wb.getSheet("sheetname2").createRow(1);

row1.setHeightInPoints(70);

Cell cell1_1 = row1.createCell(1);

cell1_1.setCellValue("Sample");

CellStyle style = wb.createCellStyle();

style.setBorderTop(CellStyle.BORDER_DASHED);

style.setBorderBottom(CellStyle.BORDER_DOUBLE);

style.setBorderLeft(CellStyle.BORDER_MEDIUM_DASH_DOT);

style.setBorderRight(CellStyle.BORDER_MEDIUM);

style.setTopBorderColor(IndexedColors.MAROON.getIndex());

style.setBottomBorderColor(IndexedColors.SKY_BLUE.getIndex());

style.setLeftBorderColor(IndexedColors.ORANGE.getIndex());

style.setRightBorderColor(IndexedColors.BLUE_GREY.getIndex());

cell1_1.setCellStyle(style);



28、设置单元格背景填充

Java代码


wb.getSheet("sheetname3").setColumnWidth(0, 4096);

wb.getSheet("sheetname3").setColumnWidth(1, 4096);

wb.getSheet("sheetname3").setColumnWidth(2, 4096);

Row row1 = wb.getSheet("sheetname3").createRow(1);

row1.setHeightInPoints(70);

Cell cell1_0 = row1.createCell(0);

Cell cell1_1 = row1.createCell(1);

Cell cell1_2 = row1.createCell(2);

cell1_0.setCellValue("THIN_VERT_BANDS");

cell1_1.setCellValue("BIG_SPOTS");

cell1_2.setCellValue("THICK_HORZ_BANDS");

CellStyle style1 = wb.createCellStyle();

style1.setFillPattern(CellStyle.THIN_VERT_BANDS);

style1.setFillForegroundColor(IndexedColors.WHITE.getIndex());

style1.setFillBackgroundColor(IndexedColors.BLUE.getIndex());

CellStyle style2 = wb.createCellStyle();

style2.setFillPattern(CellStyle.BIG_SPOTS);

style2.setFillForegroundColor(IndexedColors.RED.getIndex());

style2.setFillBackgroundColor(IndexedColors.WHITE.getIndex());

CellStyle style3 = wb.createCellStyle();

style3.setFillPattern(CellStyle.THICK_HORZ_BANDS);

style3.setFillForegroundColor(IndexedColors.PINK.getIndex());

style3.setFillBackgroundColor(IndexedColors.BROWN.getIndex());

cell1_0.setCellStyle(style1);

cell1_1.setCellStyle(style2);

cell1_2.setCellStyle(style3);



29、设置单元格注释

Java代码


HSSFCreationHelper createHelper =

(HSSFCreationHelper)wb.getCreationHelper();

Drawing patriarch = wb.getSheet("sheetname4").createDrawingPatriarch();

//注释

Row row = wb.getSheet("sheetname4").createRow(1);

Cell cell = row.createCell(1);

HSSFClientAnchor clientAnchor = new HSSFClientAnchor(0, 0, 0, 0,

(short) 4, 2, (short) 6, 5);

Comment comment = patriarch.createCellComment(clientAnchor);

comment.setString(createHelper.createRichTextString("注释注释111"));

comment.setAuthor("rensanning");

cell.setCellComment(comment);

//带字体的注释

Row row2 = wb.getSheet("sheetname4").createRow(2);

Cell cell2 = row2.createCell(1);

Font font = wb.createFont();

font.setFontName("宋体");

font.setFontHeightInPoints((short)10);

font.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD);

font.setColor(HSSFColor.RED.index);

Comment comment2 = patriarch.createCellComment(clientAnchor);

HSSFRichTextString text = new HSSFRichTextString("注释注释222");

text.applyFont(font);

comment2.setString(text);

comment2.setAuthor("rensanning");

cell2.setCellComment(comment2);

30、设置单元格字体（斜体，粗体，下线，取消线，字体，大小，背景色）

Java代码


Font font = null;

CellStyle style = null;

//斜体

font = wb.createFont();

font.setItalic(true);

style = wb.createCellStyle();

style.setFont(font);

wb.getSheet("sheetname5").getRow(1).getCell(1).setCellStyle(style);

//粗体

font = wb.createFont();

font.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD);

style = wb.createCellStyle();

style.setFont(font);

wb.getSheet("sheetname5").getRow(2).getCell(1).setCellStyle(style);

//字体名

font = wb.createFont();

font.setFontName("Courier New");

style = wb.createCellStyle();

style.setFont(font);

wb.getSheet("sheetname5").getRow(3).getCell(1).setCellStyle(style);

//字体大小

font = wb.createFont();

font.setFontHeightInPoints((short)20);

style = wb.createCellStyle();

style.setFont(font);

wb.getSheet("sheetname5").getRow(4).getCell(1).setCellStyle(style);

//文字颜色

font = wb.createFont();

font.setColor(HSSFColor.YELLOW.index);

style = wb.createCellStyle();

style.setFont(font);

wb.getSheet("sheetname5").getRow(5).getCell(1).setCellStyle(style);

//上标

font = wb.createFont();

font.setTypeOffset(HSSFFont.SS_SUPER);

style = wb.createCellStyle();

style.setFont(font);

wb.getSheet("sheetname5").getRow(6).getCell(1).setCellStyle(style);

//下标

font = wb.createFont();

font.setTypeOffset(HSSFFont.SS_SUB);

style = wb.createCellStyle();

style.setFont(font);

wb.getSheet("sheetname5").getRow(7).getCell(1).setCellStyle(style);

//删除线

font = wb.createFont();

font.setStrikeout(true);

style = wb.createCellStyle();

style.setFont(font);

wb.getSheet("sheetname5").getRow(8).getCell(1).setCellStyle(style);

//下划线

font = wb.createFont();

font.setUnderline(HSSFFont.U_SINGLE);

style = wb.createCellStyle();

style.setFont(font);

wb.getSheet("sheetname5").getRow(9).getCell(1).setCellStyle(style);

//背景色

style = wb.createCellStyle();

style.setFillForegroundColor(HSSFColor.SEA_GREEN.index);

style.setFillPattern(HSSFCellStyle.SOLID_FOREGROUND);

style.setFont(font);

wb.getSheet("sheetname5").getRow(10).getCell(1).setCellStyle(style);



31、设置超链接

Java代码


HSSFCreationHelper createHelper =

(HSSFCreationHelper)wb.getCreationHelper();

CellStyle style = wb.createCellStyle();

Font font = wb.createFont();

font.setUnderline(HSSFFont.U_SINGLE);

font.setColor(HSSFColor.BLUE.index);

style.setFont(font);

//追加行

Row[] rows = new Row[10];

for (int i = 0; i < 10; i++) {

rows[i] = wb.getSheet("sheetname6").createRow(i);

}

//URL

rows[0].createCell(0).setCellValue("URL Link");

HSSFHyperlink link1 = createHelper.createHyperlink(HSSFHyperlink.LINK_URL);

link1.setAddress("http://poi.apache.org/");

rows[0].getCell(0).setHyperlink(link1);

rows[0].getCell(0).setCellStyle(style);

//Mail

rows[1].createCell(0).setCellValue("Email Link");

HSSFHyperlink link2 = createHelper.createHyperlink(HSSFHyperlink.LINK_EMAIL);

link2.setAddress("mailto:poi@apache.org?subject=Hyperlinks");

rows[1].getCell(0).setHyperlink(link2);

rows[1].getCell(0).setCellStyle(style);

//File

rows[2].createCell(0).setCellValue("File Link");

HSSFHyperlink link3 = createHelper.createHyperlink(HSSFHyperlink.LINK_FILE);

link3.setAddress("link.xls");

rows[2].getCell(0).setHyperlink(link3);

rows[2].getCell(0).setCellStyle(style);

//Workbook内

rows[3].createCell(0).setCellValue("Worksheet Link");

HSSFHyperlink link4 = createHelper.createHyperlink(HSSFHyperlink.LINK_DOCUMENT);

link4.setAddress("sheetname1!A1");

rows[3].getCell(0).setHyperlink(link4);

rows[3].getCell(0).setCellStyle(style);

32、设置单元格横向对齐，纵向对齐

Java代码


//横向对齐

wb.getSheet("sheetname7").setColumnWidth(2, 3072);

Row[] row = new Row[7];

Cell[] cell = new Cell[7];

for (int i = 0 ; i < 7 ; i++){

row[i] = wb.getSheet("sheetname7").createRow(i + 1);

cell[i] = row[i].createCell(2);

cell[i].setCellValue("Please give me a receipt");

}

CellStyle style0 = wb.createCellStyle();

style0.setAlignment(CellStyle.ALIGN_GENERAL);

cell[0].setCellStyle(style0);

CellStyle style1 = wb.createCellStyle();

style1.setAlignment(CellStyle.ALIGN_LEFT);

cell[1].setCellStyle(style1);

CellStyle style2 = wb.createCellStyle();

style2.setAlignment(CellStyle.ALIGN_CENTER);

cell[2].setCellStyle(style2);

CellStyle style3 = wb.createCellStyle();

style3.setAlignment(CellStyle.ALIGN_RIGHT);

cell[3].setCellStyle(style3);

CellStyle style4 = wb.createCellStyle();

style4.setAlignment(CellStyle.ALIGN_FILL);

cell[4].setCellStyle(style4);

CellStyle style5 = wb.createCellStyle();

style5.setAlignment(CellStyle.ALIGN_JUSTIFY);

cell[5].setCellStyle(style5);

CellStyle style6 = wb.createCellStyle();

style6.setAlignment(CellStyle.ALIGN_CENTER_SELECTION);

cell[6].setCellStyle(style6);

//纵向对齐

Row row2 = wb.getSheet("sheetname8").createRow(1);

row2.setHeightInPoints(70);

Cell[] cell2 = new Cell[4];

for (int i = 0 ; i < 4 ; i++){

cell2[i] = row2.createCell(i + 1);

cell2[i].setCellValue("Please give me a receipt");

}

CellStyle style02 = wb.createCellStyle();

style02.setVerticalAlignment(CellStyle.VERTICAL_TOP);

cell2[0].setCellStyle(style02);

CellStyle style12 = wb.createCellStyle();

style12.setVerticalAlignment(CellStyle.VERTICAL_CENTER);

cell2[1].setCellStyle(style12);

CellStyle style22 = wb.createCellStyle();

style22.setVerticalAlignment(CellStyle.VERTICAL_BOTTOM);

cell2[2].setCellStyle(style22);

CellStyle style32 = wb.createCellStyle();

style32.setVerticalAlignment(CellStyle.VERTICAL_JUSTIFY);

cell2[3].setCellStyle(style32);



33、设置单元格旋转角度

Java代码


Row[] row = new Row[4];

Cell[] cell = new Cell[4];

for (int i = 0 ; i < 4 ; i++){

row[i] = wb.getSheet("sheetname9").createRow(i + 1);

cell[i] = row[i].createCell(2);

cell[i].setCellValue("Coffee");

}

CellStyle style0 = wb.createCellStyle();

style0.setRotation((short)45);

cell[0].setCellStyle(style0);

CellStyle style1 = wb.createCellStyle();

style1.setRotation((short)0);

cell[1].setCellStyle(style1);

CellStyle style2 = wb.createCellStyle();

style2.setRotation((short)-45);

cell[2].setCellStyle(style2);

CellStyle style3 = wb.createCellStyle();

style3.setRotation((short)-90);

cell[3].setCellStyle(style3);



34、设置单元格自动折行

Java代码


Row[] row = new Row[2];

Cell[] cell = new Cell[2];

for (int i = 0 ; i < 2 ; i++){

row[i] = wb.getSheet("sheetname10").createRow(i + 1);

cell[i] = row[i].createCell(2);

cell[i].setCellValue("Thank you very much.");

}

CellStyle style0 = wb.createCellStyle();

style0.setWrapText(true);

cell[0].setCellStyle(style0);

CellStyle style1 = wb.createCellStyle();

style1.setWrapText(false);

cell[1].setCellStyle(style1);



35、设置单元格文字缩进

Java代码


Row[] row = new Row[4];

Cell[] cell = new Cell[4];

for (int i = 0 ; i < 4 ; i++){

row[i] = wb.getSheet("sheetname11").createRow(i + 1);

cell[i] = row[i].createCell(2);

cell[i].setCellValue("Coffee");

}

CellStyle style1 = wb.createCellStyle();

style1.setIndention((short)1);

style1.setAlignment(CellStyle.ALIGN_LEFT);

cell[1].setCellStyle(style1);

CellStyle style2 = wb.createCellStyle();

style2.setIndention((short)2);

style2.setAlignment(CellStyle.ALIGN_LEFT);

cell[2].setCellStyle(style2);

CellStyle style3 = wb.createCellStyle();

style3.setIndention((short)3);

style3.setAlignment(CellStyle.ALIGN_LEFT);

cell[3].setCellStyle(style3);



36、自定义格式

Java代码


Row[] rows = new Row[2];

for (int i = 0; i < rows.length; i++) {

rows[i] = wb.getSheet("sheetname12").createRow(i + 1);

}

DataFormat format = wb.createDataFormat();

CellStyle[] styles = new CellStyle[2];

for (int i = 0; i < styles.length; i++) {

styles[i] = wb.createCellStyle();

}

styles[0].setDataFormat(format.getFormat("0.0"));

styles[1].setDataFormat(format.getFormat("#,##0.000"));

Cell[] cells = new Cell[2];

for (int i = 0; i < cells.length; i++) {

cells[i] = rows[i].createCell(1);

cells[i].setCellValue(1111.25);

cells[i].setCellStyle(styles[i]);

}



37、设置公式

Java代码


Row row1 = wb.getSheet("sheetname13").createRow(1);

Row row2 = wb.getSheet("sheetname13").createRow(2);

Cell cell1_1 = row1.createCell(1);

Cell cell1_2 = row1.createCell(2);

Cell cell1_3 = row1.createCell(3);

Cell cell2_3 = row2.createCell(3);

cell1_1.setCellValue(30);

cell1_2.setCellValue(25);

cell1_3.setCellFormula("B2+C2");

cell2_3.setCellFormula("MOD(B2,C2)");



38、画直线，圆圈（椭圆），正方形（长方形）,Textbox

Java代码


HSSFPatriarch patriarch = ((HSSFSheet)wb.getSheet("sheetname14")).createDrawingPatriarch();

//直线

HSSFClientAnchor clientAnchor1 = new HSSFClientAnchor(0, 0, 0, 0,

(short) 4, 2, (short) 6, 5);

HSSFSimpleShape shape1 = patriarch.createSimpleShape(clientAnchor1);

shape1.setShapeType(HSSFSimpleShape.OBJECT_TYPE_LINE);

//圆圈（椭圆）

HSSFClientAnchor clientAnchor2 = new HSSFClientAnchor(0, 0, 0, 0,

(short) 8, 4, (short) 6, 5);

HSSFSimpleShape shape2 = patriarch.createSimpleShape(clientAnchor2);

shape2.setShapeType(HSSFSimpleShape.OBJECT_TYPE_OVAL);

//正方形（长方形）

HSSFClientAnchor clientAnchor3 = new HSSFClientAnchor(0, 0, 0, 0,

(short) 12, 6, (short) 6, 5);

HSSFSimpleShape shape3 = patriarch.createSimpleShape(clientAnchor3);

shape3.setShapeType(HSSFSimpleShape.OBJECT_TYPE_RECTANGLE);

//Textbox

HSSFClientAnchor clientAnchor4 = new HSSFClientAnchor(0, 0, 0, 0,

(short) 14, 8, (short) 6, 5);

HSSFTextbox textbox = patriarch.createTextbox(clientAnchor4);

textbox.setString(new HSSFRichTextString("This is a test"));

39、插入图片

Java代码


//需要commons-codec-1.6.jar

FileInputStream jpeg = new FileInputStream("resource/test.jpg");

byte[] bytes = IOUtils.toByteArray(jpeg);

int pictureIndex = wb.addPicture(bytes, HSSFWorkbook.PICTURE_TYPE_JPEG);

jpeg.close();

HSSFCreationHelper helper = (HSSFCreationHelper) wb.getCreationHelper();

HSSFPatriarch patriarch = ((HSSFSheet)wb.getSheet("sheetname15")).createDrawingPatriarch();

HSSFClientAnchor clientAnchor = helper.createClientAnchor();

clientAnchor.setCol1(3);

clientAnchor.setRow1(2);

HSSFPicture picture = patriarch.createPicture(clientAnchor, pictureIndex);

picture.resize();



40、设置可输入List

Java代码


CellRangeAddressList addressList = new CellRangeAddressList(

0,

0,

0,

0);

final String[] DATA_LIST = new String[] {

"10",

"20",

"30",

};

DVConstraint dvConstraint =

DVConstraint.createExplicitListConstraint(DATA_LIST);

HSSFDataValidation dataValidation = new HSSFDataValidation(addressList, dvConstraint);

dataValidation.setSuppressDropDownArrow(false);

wb.getSheet("sheetname16").addValidationData(dataValidation);



41、设置输入提示信息

Java代码


CellRangeAddressList addressList = new CellRangeAddressList(

0,

0,

0,

0);

final String[] DATA_LIST = new String[] {

"10",

"20",

"30",

};

DVConstraint dvConstraint = DVConstraint.createExplicitListConstraint(DATA_LIST);

HSSFDataValidation dataValidation =

new HSSFDataValidation(addressList, dvConstraint);

dataValidation.setSuppressDropDownArrow(false);

dataValidation.createPromptBox("输入提示", "请从下拉列表中选择！");

dataValidation.setShowPromptBox(true);

wb.getSheet("sheetname17").addValidationData(dataValidation);