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详解JAVA POI导出EXCEL报表的操作(包括各种格式及样式的实现)【转】

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一、工具类 
/**  
* EXCEL报表工具类.  
*  
* @author caoyb  
* @version $Revision:$  
*/   
public class ExportExcel {   
  
private HSSFWorkbook wb = null;   
  
private HSSFSheet sheet = null;   
  
/**  
* @param wb  
* @param sheet  
*/   
public ExportExcel(HSSFWorkbook wb, HSSFSheet sheet) {   
super();   
this.wb = wb;   
this.sheet = sheet;   
}   
  
/**  
* @return the sheet  
*/   
public HSSFSheet getSheet() {   
return sheet;   
}   
  
/**  
* @param sheet the sheet to set  
*/   
public void setSheet(HSSFSheet sheet) {   
this.sheet = sheet;   
}   
  
/**  
* @return the wb  
*/   
public HSSFWorkbook getWb() {   
return wb;   
}   
  
/**  
* @param wb the wb to set  
*/   
public void setWb(HSSFWorkbook wb) {   
this.wb = wb;   
}   
  
/**  
* 创建通用EXCEL头部  
*  
* @param headString 头部显示的字符  
* @param colSum 该报表的列数  
*/   
public void createNormalHead(String headString, int colSum) {   
  
HSSFRow row = sheet.createRow(0);   
  
// 设置第一行   
HSSFCell cell = row.createCell(0);   
row.setHeight((short) 400);   
  
// 定义单元格为字符串类型   
cell.setCellType(HSSFCell.ENCODING_UTF_16);   
cell.setCellValue(new HSSFRichTextString("南京城区各网点进件统计报表"));   
  
// 指定合并区域   
sheet.addMergedRegion(new Region(0, (short) 0, 0, (short) colSum));   
  
HSSFCellStyle cellStyle = wb.createCellStyle();   
  
cellStyle.setAlignment(HSSFCellStyle.ALIGN_CENTER); // 指定单元格居中对齐   
cellStyle.setVerticalAlignment(HSSFCellStyle.VERTICAL_CENTER);// 指定单元格垂直居中对齐   
cellStyle.setWrapText(true);// 指定单元格自动换行   
  
// 设置单元格字体   
HSSFFont font = wb.createFont();   
font.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD);   
font.setFontName("宋体");   
font.setFontHeight((short) 300);   
cellStyle.setFont(font);   
  
cell.setCellStyle(cellStyle);   
}   
  
/**  
* 创建通用报表第二行  
*  
* @param params 统计条件数组  
* @param colSum 需要合并到的列索引  
*/   
public void createNormalTwoRow(String[] params, int colSum) {   
HSSFRow row1 = sheet.createRow(1);   
row1.setHeight((short) 300);   
  
HSSFCell cell2 = row1.createCell(0);   
  
cell2.setCellType(HSSFCell.ENCODING_UTF_16);   
cell2.setCellValue(new HSSFRichTextString("统计时间:" + params[0] + "至"   
+ params[1]));   
  
// 指定合并区域   
sheet.addMergedRegion(new Region(1, (short) 0, 1, (short) colSum));   
  
HSSFCellStyle cellStyle = wb.createCellStyle();   
cellStyle.setAlignment(HSSFCellStyle.ALIGN_CENTER); // 指定单元格居中对齐   
cellStyle.setVerticalAlignment(HSSFCellStyle.VERTICAL_CENTER);// 指定单元格垂直居中对齐   
cellStyle.setWrapText(true);// 指定单元格自动换行   
  
// 设置单元格字体   
HSSFFont font = wb.createFont();   
font.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD);   
font.setFontName("宋体");   
font.setFontHeight((short) 250);   
cellStyle.setFont(font);   
  
cell2.setCellStyle(cellStyle);   
  
}   
  
/**  
* 设置报表标题  
*  
* @param columHeader 标题字符串数组  
*/   
public void createColumHeader(String[] columHeader) {   
  
// 设置列头   
HSSFRow row2 = sheet.createRow(2);   
  
// 指定行高   
row2.setHeight((short) 600);   
  
HSSFCellStyle cellStyle = wb.createCellStyle();   
cellStyle.setAlignment(HSSFCellStyle.ALIGN_CENTER); // 指定单元格居中对齐   
cellStyle.setVerticalAlignment(HSSFCellStyle.VERTICAL_CENTER);// 指定单元格垂直居中对齐   
cellStyle.setWrapText(true);// 指定单元格自动换行   
  
// 单元格字体   
HSSFFont font = wb.createFont();   
font.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD);   
font.setFontName("宋体");   
font.setFontHeight((short) 250);   
cellStyle.setFont(font);   
  
/*cellStyle.setBorderBottom(HSSFCellStyle.BORDER_THIN); // 设置单无格的边框为粗体  
cellStyle.setBottomBorderColor(HSSFColor.BLACK.index); // 设置单元格的边框颜色.  
cellStyle.setBorderLeft(HSSFCellStyle.BORDER_THIN);  
cellStyle.setLeftBorderColor(HSSFColor.BLACK.index);  
cellStyle.setBorderRight(HSSFCellStyle.BORDER_THIN);  
cellStyle.setRightBorderColor(HSSFColor.BLACK.index);  
cellStyle.setBorderTop(HSSFCellStyle.BORDER_THIN);  
cellStyle.setTopBorderColor(HSSFColor.BLACK.index);*/   
  
// 设置单元格背景色   
cellStyle.setFillForegroundColor(HSSFColor.GREY_25_PERCENT.index);   
cellStyle.setFillPattern(HSSFCellStyle.SOLID_FOREGROUND);   
  
HSSFCell cell3 = null;   
  
for (int i = 0; i < columHeader.length; i++) {   
cell3 = row2.createCell(i);   
cell3.setCellType(HSSFCell.ENCODING_UTF_16);   
cell3.setCellStyle(cellStyle);   
cell3.setCellValue(new HSSFRichTextString(columHeader[i]));   
}   
  
}   
  
/**  
* 创建内容单元格  
*  
* @param wb HSSFWorkbook  
* @param row HSSFRow  
* @param col short型的列索引  
* @param align 对齐方式  
* @param val 列值  
*/   
public void cteateCell(HSSFWorkbook wb, HSSFRow row, int col,   
short align, String val) {   
HSSFCell cell = row.createCell(col);   
cell.setCellType(HSSFCell.ENCODING_UTF_16);   
cell.setCellValue(new HSSFRichTextString(val));   
HSSFCellStyle cellstyle = wb.createCellStyle();   
cellstyle.setAlignment(align);   
cell.setCellStyle(cellstyle);   
}   
  
/**  
* 创建合计行  
* @param colSum 需要合并到的列索引  
* @param cellValue  
*/   
public void createLastSumRow(int colSum, String[] cellValue) {   
  
HSSFCellStyle cellStyle = wb.createCellStyle();   
cellStyle.setAlignment(HSSFCellStyle.ALIGN_CENTER); // 指定单元格居中对齐   
cellStyle.setVerticalAlignment(HSSFCellStyle.VERTICAL_CENTER);// 指定单元格垂直居中对齐   
cellStyle.setWrapText(true);// 指定单元格自动换行   
  
// 单元格字体   
HSSFFont font = wb.createFont();   
font.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD);   
font.setFontName("宋体");   
font.setFontHeight((short) 250);   
cellStyle.setFont(font);   
  
HSSFRow lastRow = sheet.createRow((short) (sheet.getLastRowNum() + 1));   
HSSFCell sumCell = lastRow.createCell(0);   
  
sumCell.setCellValue(new HSSFRichTextString("合计"));   
sumCell.setCellStyle(cellStyle);   
sheet.addMergedRegion(new Region(sheet.getLastRowNum(), (short) 0,   
sheet.getLastRowNum(), (short) colSum));// 指定合并区域   
  
for (int i = 2; i < (cellValue.length + 2); i++) {   
sumCell = lastRow.createCell(i);   
sumCell.setCellStyle(cellStyle);   
sumCell.setCellValue(new HSSFRichTextString(cellValue[i-2]));   
  
}   
  
}   
  
/**  
* 输入EXCEL文件  
*  
* @param fileName 文件名  
*/   
public void outputExcel(String fileName) {   
FileOutputStream fos = null;   
try {   
fos = new FileOutputStream(new File(fileName));   
wb.write(fos);   
fos.close();   
} catch (FileNotFoundException e) {   
e.printStackTrace();   
} catch (IOException e) {   
e.printStackTrace();   
}   
}   
}   
  
  
二、创建EXCEL报表的客户端   
/**  
* 拒绝件报表生成类.  
*  
* @author caoyb  
* @version $Revision:$  
*/   
public class ComplexExportExcelClient {   
  
private static HSSFWorkbook wb = new HSSFWorkbook();   
  
private static HSSFSheet sheet = wb.createSheet();   
  
public static void main(String[] args) {   
  
ExportExcel exportExcel = new ExportExcel(wb, sheet);   
  
//创建列标头LIST   
List fialList = new ArrayList();   
  
fialList.add("申请人未提供任何联系方式");   
fialList.add("无工作单位信息且未提供收入来源信息");   
fialList.add("有工作单位但未提供单位地址或电话");   
fialList.add("家庭地址缺失");   
fialList.add("客户身份证明资料缺");   
fialList.add("签名缺失或签名不符合要求");   
fialList.add("其它");   
  
List errorList = new ArrayList();   
  
errorList.add("客户主动取消");   
errorList.add("个人征信不良");   
errorList.add("欺诈申请");   
errorList.add("申请人基本条件不符");   
errorList.add("申请材料不合规");   
errorList.add("无法正常完成征信");   
errorList.add("重复申请");   
errorList.add("其他");   
  
// 计算该报表的列数   
int number = 2 + fialList.size() * 2 + errorList.size() * 2;   
  
// 给工作表列定义列宽(实际应用自己更改列数)   
for (int i = 0; i < number; i++) {   
sheet.setColumnWidth(i, 3000);   
  
}   
  
// 创建单元格样式   
HSSFCellStyle cellStyle = wb.createCellStyle();   
  
// 指定单元格居中对齐   
cellStyle.setAlignment(HSSFCellStyle.ALIGN_CENTER);   
  
// 指定单元格垂直居中对齐   
cellStyle.setVerticalAlignment(HSSFCellStyle.VERTICAL_CENTER);   
  
// 指定当单元格内容显示不下时自动换行   
cellStyle.setWrapText(true);   
  
// 设置单元格字体   
HSSFFont font = wb.createFont();   
font.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD);   
font.setFontName("宋体");   
font.setFontHeight((short) 200);   
cellStyle.setFont(font);   
  
// 创建报表头部   
exportExcel.createNormalHead("南京地区申请资料拒件分析统计", number);   
  
// 设置第二行   
String[] params = new String[] { "    年  月  日", "  年  月  日" };   
exportExcel.createNormalTwoRow(params, number);   
  
// 设置列头   
HSSFRow row2 = sheet.createRow(2);   
  
HSSFCell cell0 = row2.createCell(0);   
cell0.setCellStyle(cellStyle);   
cell0.setCellValue(new HSSFRichTextString("机构代码"));   
  
HSSFCell cell1 = row2.createCell(1);   
cell1.setCellStyle(cellStyle);   
cell1.setCellValue(new HSSFRichTextString("支行名称"));   
  
HSSFCell cell2 = row2.createCell(2);   
cell2.setCellStyle(cellStyle);   
cell2.setCellValue(new HSSFRichTextString("无效件"));   
  
HSSFCell cell3 = row2.createCell(2 * fialList.size() + 2);   
cell3.setCellStyle(cellStyle);   
cell3.setCellValue(new HSSFRichTextString("拒绝件"));   
  
HSSFRow row3 = sheet.createRow(3);   
  
// 设置行高   
row3.setHeight((short) 800);   
  
HSSFCell row3Cell = null;   
int m = 0;   
int n = 0;   
  
// 创建不同的LIST的列标题   
for (int i = 2; i < number; i = i + 2) {   
  
if (i < 2 * fialList.size() + 2) {   
row3Cell = row3.createCell(i);   
row3Cell.setCellStyle(cellStyle);   
row3Cell.setCellValue(new HSSFRichTextString(fialList.get(m)   
.toString()));   
m++;   
} else {   
row3Cell = row3.createCell(i);   
row3Cell.setCellStyle(cellStyle);   
row3Cell.setCellValue(new HSSFRichTextString(errorList.get(n)   
.toString()));   
n++;   
}   
  
}   
  
// 创建最后一列的合计列   
row3Cell = row3.createCell(number);   
row3Cell.setCellStyle(cellStyle);   
row3Cell.setCellValue(new HSSFRichTextString("合计"));   
  
// 合并单元格   
HSSFRow row4 = sheet.createRow(4);   
  
// 合并第三行到第五行的第一列   
sheet.addMergedRegion(new Region(2, (short) 0, 4, (short) 0));   
  
// 合并第三行到第五行的第二列   
sheet.addMergedRegion(new Region(2, (short) 1, 4, (short) 1));   
  
// 合并第三行的第三列到第AA指定的列   
int aa = 2 * fialList.size() + 1;   
sheet.addMergedRegion(new Region(2, (short) 2, 2, (short) aa));   
  
int start = aa + 1;   
  
sheet.addMergedRegion(new Region(2, (short) start, 2,   
(short) (number - 1)));   
  
// 循环合并第四行的行,并且是每2列合并成一列   
for (int i = 2; i < number; i = i + 2) {   
sheet.addMergedRegion(new Region(3, (short) i, 3, (short) (i + 1)));   
  
}   
  
// 根据列数奇偶数的不同创建不同的列标题   
for (int i = 2; i < number; i++) {   
if (i < 2 * fialList.size() + 2) {   
  
if (i % 2 == 0) {   
HSSFCell cell = row4.createCell(i);   
cell.setCellStyle(cellStyle);   
cell.setCellValue(new HSSFRichTextString("无效量"));   
} else {   
HSSFCell cell = row4.createCell(i);   
cell.setCellStyle(cellStyle);   
cell.setCellValue(new HSSFRichTextString("占比"));   
}   
} else {   
if (i % 2 == 0) {   
HSSFCell cell = row4.createCell(i);   
cell.setCellStyle(cellStyle);   
cell.setCellValue(new HSSFRichTextString("拒绝量"));   
} else {   
HSSFCell cell = row4.createCell(i);   
cell.setCellStyle(cellStyle);   
cell.setCellValue(new HSSFRichTextString("占比"));   
}   
}   
  
}   
  
// 循环创建中间的单元格的各项的值   
for (int i = 5; i < number; i++) {   
HSSFRow row = sheet.createRow((short) i);   
for (int j = 0; j <= number; j++) {   
exportExcel   
.cteateCell(wb, row, (short) j,   
HSSFCellStyle.ALIGN_CENTER_SELECTION, String   
.valueOf(j));   
}   
  
}   
  
// 创建最后一行的合计行   
String[] cellValue = new String[number - 1];   
for (int i = 0; i < number - 1; i++) {   
cellValue[i] = String.valueOf(i);   
  
}   
exportExcel.createLastSumRow(1, cellValue);   
  
exportExcel.outputExcel("c://拒绝件统计.xls");   
  
}   
}   


文章出处:http://blog.csdn.net/jeff06143132/article/details/5883936
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