Directly on the bar code
/**
*
*/
package zhongdian.whh.commonclass;
import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.util.ArrayList;
import java.util.List;
import javax.servlet.http.HttpServletResponse;
import org.apache.poi.hssf.usermodel.HSSFCell;
import org.apache.poi.hssf.usermodel.HSSFCellStyle;
import org.apache.poi.hssf.usermodel.HSSFFont;
import org.apache.poi.hssf.usermodel.HSSFRow;
import org.apache.poi.hssf.usermodel.HSSFSheet;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.hssf.util.HSSFColor;
import org.apache.poi.hssf.util.Region;
/**数据导出Excel
* 2018/9/10
* @author
*
*/
public class DataToExcel {
private DataToExcel(){}
/**
* 导出Excel
* @param response 你懂的
* @param excelFile Excel文件
* @param fileName 导出的文件名
*/
public static void export(HttpServletResponse response , HSSFWorkbook excelFile , String fileName) {
//写入excel表
response.reset();
response.setContentType( "application/octet-stream;charset=GBK" );
response.setCharacterEncoding("GBK");
response.setHeader( "Content-Disposition", "attachment;filename=" + processExcelFilename(fileName) + ".xls" );
try {
excelFile.write(response.getOutputStream( ));
} catch (IOException e) {
throw new RuntimeException(e);
}
}
/**
* 导出Excel
* @param response 你懂的
* @param fileName 导出的文件名
* @param columnWidth 列宽
* @param rowName 表头
* @param dataList 数据以List<List<String>>组织
*/
public static void export(HttpServletResponse response , String fileName , int columnWidth ,
String sheetName , String[] rowName, List<List<String>> dataList){
HSSFWorkbook excelFile = null;
try {
excelFile = toExcel(excelFile, sheetName, columnWidth, rowName, dataList);
} catch (IOException e) {
; a RuntimeException the throw new new (E)
}
export(response, excelFile, fileName);
}
/ **
* stacked converted into Excel files
* @param excelFile stack Excel file, the new pass null
* @param Table the Table
* @param sheetName SheetName
* @param the columnWidth column widths
after stacking * @return Excel file
* @throws IOException
* /
public static HSSFWorkbook ToExcel (HSSFWorkbook ExcelFile, String sheetName, the columnWidth int
, String [] rowName, List <List <String >> dataList) throws IOException {
// declare a workbook
if (excelFile = null =) {
ExcelFile HSSFWorkbook new new = ();
}
// generate the title style
@SuppressWarnings ( "unused")
HSSFCellStyle TitleStyle = getTitleStyle (ExcelFile);
// generates a header line style
@SuppressWarnings ( "unused")
HSSFCellStyle titleRowStyle = getRowTitleStyle (ExcelFile);
// data pattern generating
HSSFCellStyle cellRowStyle = getCellStyle (ExcelFile);
// highlight format
HSSFCellStyle styleLight = styleLight (ExcelFile);
int sheetNum = (int) dataList.size ( ) / 60000;
IF (dataList.size () = 0% 60000) {!
sheetNum ++;
}
examples / ** merged cell
// header styling
HSSFRow ROW0 = sheet.createRow (0);
createMyCells (0,19 , ROW0, titleRowStyle);
sheet.addMergedRegion (getMyRegion (0, 2, 0, 0));
addMyTitle (ROW0, 0, "name of follow-up");
sheet.addMergedRegion (getMyRegion (0, 2,. 1,. 1));
addMyTitle (ROW1, 3," extended time / month ");
addMyTitle (ROW0,. 1, "the total amount owed the name");
sheet.addMergedRegion (getMyRegion (0, 0, 2,. 7));
addMyTitle (ROW0, 2, "extended debt");
sheet.addMergedRegion (getMyRegion (0, 0,. 8, 13 is));
addMyTitle (ROW0,. 8 "extended contract number");
sheet.addMergedRegion (getMyRegion (0, 0, 14, 18 is));
addMyTitle (ROW0, 14, "the number of contracts extended debt");
HSSFRow sheet.createRow ROW1 = (. 1);
createMyCells (0,19, ROW1, titleRowStyle);
sheet.addMergedRegion (getMyRegion (1, 2, 2, 2));
addMyTitle (ROW1, 2, "the total amount of overdue debt");
sheet.addMergedRegion (getMyRegion (1, 1 ,. 3,. 7));
addMyTitle (ROW1,. 8, "the total number of contracts extended");
sheet.addMergedRegion (getMyRegion (. 1, 2,. 8,. 8));
sheet.addMergedRegion (getMyRegion (. 1,. 1,. 9, 13 is));
addMyTitle (ROW1,. 9, "extended time / month");
sheet.addMergedRegion ( getMyRegion (. 1, 2, 14, 14));
addMyTitle (ROW1, 14, ". 1 million or less");
sheet.addMergedRegion (getMyRegion (. 1, 2, 15, 15));
addMyTitle (ROW1, 15, ". 1 million to 50,000 ");
sheet.addMergedRegion (getMyRegion (. 1, 2, 16, 16));
addMyTitle (ROW1, 16," 10 million to 50,000 ");
sheet.addMergedRegion (getMyRegion (. 1, 2,. 17,. 17 ));
addMyTitle (ROW1,. 17, "10 million to 30 million");
sheet.addMergedRegion (getMyRegion (. 1, 2, 18 is, 18 is));
addMyTitle (ROW1, 18 is, "30 million or more");
*/
for (int = 0 K; K <sheetNum;++ k) {
// create a sheet
Sheet = excelFile.createSheet HSSFSheet ();
excelFile.setSheetName (excelFile.getNumberOfSheets () -. 1, sheetName + K + "", (Short). 1);
sheet.setDefaultColumnWidth ((Short) (the columnWidth));
// the Build Excel
IF (rowName = null && rowName.length> 0!) {
// set header
int = columnNum rowName.length;
HSSFRow rowRowName = sheet.createRow (0); // Create a row at index position 0
// column head is provided the sheet of cells
for (n-int = 0; n-<columnNum; n-++) {
HSSFCell cellRowName rowRowName.createCell = ((Short) n-); // creates a corresponding number of column header cells
cellRowName.setEncoding (HSSFCell.ENCODING_UTF_16);
cellRowName.setCellType (HSSFCell. CELL_TYPE_STRING);
cellRowName.setCellValue(rowName[n]);//设置列头单元格的值
cellRowName.setCellStyle(titleRowStyle);
}
}
int rowIndex = 1;
for(int index = k * 60000; index < dataList.size(); index++){
List<String> dl = dataList.get(index);
HSSFRow row = sheet.createRow(rowIndex);
HSSFCellStyle cellstyle = cellRowStyle;
if(rowIndex%2==1){
cellstyle = styleLight;
}
for(int i = 0; i < dl.size(); i++) {
addCell_whh(row, cellstyle, dl.get(i), i);
}
rowIndex++;
}
}
return excelFile;
}
private static Region getMyRegion(int rf,int rt,int cf,int ct){
Region region = new Region();
region.setRowFrom(rf);
region.setRowTo(rt);
region.setColumnFrom((short) cf);
region.setColumnTo((short) ct);
return region;
}
private static void createMyCells(int from,int to,HSSFRow rowRowName, HSSFCellStyle titleRowStyle){
for(int i = from; i < to; i++){
HSSFCell cellRowName = rowRowName.createCell((short)i);
cellRowName.setEncoding( HSSFCell.ENCODING_UTF_16 );
cellRowName.setCellType( HSSFCell.CELL_TYPE_STRING );
cellRowName.setCellStyle(titleRowStyle);
}
}
public static void addCell_whh(HSSFRow row, HSSFCellStyle cellstyle, String text, int n){
HSSFCell cell = row.createCell((short)n);
cell.setCellStyle(cellstyle);
cell.setEncoding( HSSFCell.ENCODING_UTF_16 );
cell.setCellType( HSSFCell.CELL_TYPE_STRING );
cell.setCellValue(text);
}
/**
* 生成标题样式
* @param workbook
* @return
*/
public static HSSFCellStyle getTitleStyle(HSSFWorkbook workbook){
HSSFCellStyle style = workbook.createCellStyle();
// 设置这些样式
style.setFillForegroundColor(HSSFColor.LIGHT_ORANGE.index);
style.setFillPattern(HSSFCellStyle.SOLID_FOREGROUND);
style.setBorderBottom(HSSFCellStyle.BORDER_THIN);
style.setBorderLeft(HSSFCellStyle.BORDER_THIN);
style.setBorderRight(HSSFCellStyle.BORDER_THIN);
style.setBorderTop(HSSFCellStyle.BORDER_THIN);
style.setAlignment(HSSFCellStyle.ALIGN_CENTER);
style.setBottomBorderColor(HSSFColor.GREY_50_PERCENT.index);
style.setRightBorderColor(HSSFColor.GREY_50_PERCENT.index);
style.setLeftBorderColor(HSSFColor.GREY_50_PERCENT.index);
style.setTopBorderColor(HSSFColor.GREY_50_PERCENT.index);
// 生成一个字体
HSSFFont font = workbook.createFont();
font.setColor(HSSFColor.VIOLET.index);
font.setFontHeightInPoints((short) 12);
font.setBoldweight (HSSFFont.BOLDWEIGHT_BOLD);
// font style applied to the current
style.setFont(font);
return style;
}
/ **
* generate row headers style
* @param Workbook
* @return
* /
public static HSSFCellStyle getRowTitleStyle (HSSFWorkbook Workbook) {
HSSFCellStyle style workbook.createCellStyle = ();
// set these styles
style.setFillForegroundColor (HSSFColor.LIGHT_ORANGE.index);
style.setFillPattern (HSSFCellStyle.SOLID_FOREGROUND);
style.setBorderBottom (HSSFCellStyle.BORDER_THIN);
style.setBorderLeft (HSSFCellStyle.BORDER_THIN);
style.setBorderRight (HSSFCellStyle.BORDER_THIN);
style.setBorderTop (HSSFCellStyle.BORDER_THIN);
style.setAlignment (HSSFCellStyle.ALIGN_CENTER);
style.setBottomBorderColor(HSSFColor.GREY_50_PERCENT.index);
style.setRightBorderColor (HSSFColor.GREY_50_PERCENT.index);
style.setLeftBorderColor (HSSFColor.GREY_50_PERCENT.index);
style.setTopBorderColor (HSSFColor.GREY_50_PERCENT.index);
// generate a font
HSSFFont font = workbook.createFont ();
// font.setColor (HSSFColor.VIOLET.index);
font.setFontHeightInPoints ((Short) 10);
font.setBoldweight (HSSFFont.BOLDWEIGHT_BOLD);
// font style applied to the current
style.setFont (font);
return style;
}
/ **
* generated data pattern
* @param Workbook
* @return
* /
public static HSSFCellStyle getCellStyle (HSSFWorkbook Workbook) {
HSSFCellStyle style = workbook.createCellStyle();
style.setFillForegroundColor(HSSFColor.WHITE.index);
style.setFillPattern(HSSFCellStyle.SOLID_FOREGROUND);
style.setBorderBottom(HSSFCellStyle.BORDER_THIN);
style.setBorderLeft(HSSFCellStyle.BORDER_THIN);
style.setBorderRight(HSSFCellStyle.BORDER_THIN);
style.setBorderTop(HSSFCellStyle.BORDER_THIN);
style.setAlignment(HSSFCellStyle.ALIGN_CENTER);
style.setVerticalAlignment(HSSFCellStyle.VERTICAL_CENTER);
style.setBottomBorderColor(HSSFColor.GREY_50_PERCENT.index);
style.setRightBorderColor(HSSFColor.GREY_50_PERCENT.index);
style.setLeftBorderColor(HSSFColor.GREY_50_PERCENT.index);
style.setTopBorderColor(HSSFColor.GREY_50_PERCENT.index);
// 生成另一个字体
HSSFFont font = workbook.createFont();
font.setBoldweight(HSSFFont.BOLDWEIGHT_NORMAL);
// 把字体应用到当前的样式
style.setFont(font);
return style;
}
/**
* 高亮格式
* @param workbook
* @return
*/
public static HSSFCellStyle styleLight(HSSFWorkbook workbook){
HSSFCellStyle style = workbook.createCellStyle();
style.setFillForegroundColor(HSSFColor.PALE_BLUE.index);
//HSSFColor.SKY_BLUE;
style.setFillPattern(HSSFCellStyle.SOLID_FOREGROUND);
style.setBorderBottom(HSSFCellStyle.BORDER_THIN);
style.setBorderLeft(HSSFCellStyle.BORDER_THIN);
style.setBorderRight(HSSFCellStyle.BORDER_THIN);
style.setBorderTop (HSSFCellStyle.BORDER_THIN);
style.setAlignment (HSSFCellStyle.ALIGN_CENTER);
style.setVerticalAlignment (HSSFCellStyle.VERTICAL_CENTER);
style.setBottomBorderColor (HSSFColor.GREY_50_PERCENT.index);
style.setRightBorderColor (HSSFColor.GREY_50_PERCENT.index);
style .setLeftBorderColor (HSSFColor.GREY_50_PERCENT.index);
style.setTopBorderColor (HSSFColor.GREY_50_PERCENT.index);
// generate another Font
HSSFFont font workbook.createFont = ();
font.setBoldweight (HSSFFont.BOLDWEIGHT_NORMAL);
// use the font to the current style
style.setFont (font);
return style;
}
/ **
* pre-export file name
* @param str
* @return
*/
public static String processExcelFilename(String str){
try {
return java.net.URLEncoder.encode(str, "utf-8");
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
return "No Name";
}
/**
* @param args
*/
public static void main(String[] args) {
// TODO 自动生成的方法存根
List<List<String>> dataList = new ArrayList<List<String>>();
System.out.println((int)100/6000);
}
}