java中的导出excel
定义Controller
@RequestMapping(value = "exportJxkh")
@ResponseBody
public ReturnJson exportJxkh(JxkhPerformanceAppraisalVo jxkhPerformanceAppraisalVo,
HttpServletRequest request, HttpServletResponse response){
ReturnJson ret = ReturnJson.Success;
int result = jxkhPerformanceAppraisalService.
exportJxkh(jxkhPerformanceAppraisalVo,request,response);
if(result!=1){
ret = ReturnJson.Faild;
}
return ret;
}
在serviceImpl中操作
public void exportJxkh(JxkhPerformanceAppraisalVo jxkhPerformanceAppraisalVo,
HttpServletRequest request, HttpServletResponse response) {
// 第一步,创建一个webbook,对应一个Excel文件
HSSFWorkbook wb = new HSSFWorkbook();
// 第二步,在webbook中添加一个sheet,对应Excel文件中的sheet
HSSFSheet sheet = wb.createSheet("招标");
// 第四步,创建单元格,并设置值表头 设置表头居中
HSSFCellStyle style = wb.createCellStyle();
style.setVerticalAlignment(HSSFCellStyle.VERTICAL_CENTER);// 垂直
style.setAlignment(HSSFCellStyle.ALIGN_CENTER);// 水平
// 表头标题样式
HSSFFont headfont = wb.createFont();
headfont.setFontName("宋体");
headfont.setFontHeightInPoints((short) 20);// 字体大小
HSSFCellStyle headstyle = wb.createCellStyle();
headstyle.setFont(headfont);
headstyle.setAlignment(HSSFCellStyle.ALIGN_CENTER);// 左右居中
headstyle.setVerticalAlignment(HSSFCellStyle.VERTICAL_CENTER);// 上下居中
headstyle.setLocked(true);
// 普通单元格样式(中文)
HSSFFont font2 = wb.createFont();
font2.setFontName("宋体");
font2.setFontHeightInPoints((short) 12);
HSSFCellStyle style2 = wb.createCellStyle();
style2.setBorderBottom(HSSFCellStyle.BORDER_THIN); // 下边框
style2.setBorderLeft(HSSFCellStyle.BORDER_THIN);// 左边框
style2.setBorderTop(HSSFCellStyle.BORDER_THIN);// 上边框
style2.setBorderRight(HSSFCellStyle.BORDER_THIN);// 右边框
style2.setFont(font2);
style2.setAlignment(HSSFCellStyle.ALIGN_CENTER);// 左右居中
style2.setWrapText(true); // 换行
style2.setVerticalAlignment(HSSFCellStyle.VERTICAL_CENTER);// 上下居中
// 普通单元格样式(中文) 无边框
HSSFCellStyle style3 = wb.createCellStyle();
style3.setFont(font2);
style3.setWrapText(true); // 换行
style3.setVerticalAlignment(HSSFCellStyle.VERTICAL_CENTER);// 上下居中
// 普通单元格样式(中文) 无边框
HSSFCellStyle style4 = wb.createCellStyle();
style4.setFont(font2);
style4.setWrapText(true); // 换行
style4.setVerticalAlignment(HSSFCellStyle.VERTICAL_TOP);// 顶端对齐
style4.setBorderRight(HSSFCellStyle.BORDER_THIN);// 右边框
// 下边框
HSSFCellStyle styleBottom = wb.createCellStyle();
styleBottom.setBorderBottom(HSSFCellStyle.BORDER_THIN); // 下边框
// 右边框
HSSFCellStyle styleRight = wb.createCellStyle();
styleRight.setBorderRight(HSSFCellStyle.BORDER_THIN);// 右边框
// 右——下边框
HSSFCellStyle style_RB = wb.createCellStyle();
style_RB.setBorderRight(HSSFCellStyle.BORDER_THIN);// 右边框
style_RB.setBorderBottom(HSSFCellStyle.BORDER_THIN); // 下边框
// 设置列宽 (第几列,宽度)
sheet.setColumnWidth(0, 3200);
sheet.setColumnWidth(1, 3200);
sheet.setColumnWidth(2, 3200);
sheet.setColumnWidth(3, 3200);
sheet.setColumnWidth(4, 3200);
sheet.setColumnWidth(5, 3200);
sheet.setColumnWidth(6, 3200);
sheet.setColumnWidth(7, 3800);
sheet.setDefaultRowHeight((short) 0x270);// 设置行高----貌似没有效果,所以下面每行独立设置行高
String[] head0 = new String[] { " ", "招标范围", "招标范围", "招标组织形式", "招标组织形式", "招标方式", "招标方式", "不采用招标方式" };// 在excel中的第4行每列的参数
String[] head1 = new String[] { "全部招标", "部分招标", "自行招标", "委托招标", "公开招标", "邀请招标" };// 在excel中的第5行每列(合并列)的参数
String[] headnum0 = new String[] { "3,4,0,0", "3,3,1,2", "3,3,3,4", "3,3,5,6", "3,4,7,7" };// 对应excel中的行和列,下表从0开始{"开始行,结束行,开始列,结束列"}
String[] headnum1 = new String[] { "4,4,1,1", "4,4,2,2", "4,4,3,3", "4,4,4,4", "4,4,5,5", "4,4,6,6" };
String[] column0 = new String[] { "工程1", "工程2", "工程3", "工程4", "工程5", "工程6", "工程7", "其他" };
// 第一行
HSSFRow row = sheet.createRow(0);
HSSFCell cell = row.createCell(0);
row.setHeight((short) 0x270);// 设置行高
cell.setCellValue("附件:");
cell.setCellStyle(style3);
// 第二行表头标题
sheet.addMergedRegion(new CellRangeAddress(1, 1, 0, head0.length - 1));
HSSFRow row2 = sheet.createRow(1);
row2.setHeight((short) 0x480);
cell = row2.createCell(0);
cell.setCellValue("标题");
cell.setCellStyle(headstyle);
/*
* row2.createCell(0).setCellValue("招标表");
* row2.createCell(0).setCellStyle(headstyle);
*/ // 这种写法会把value值冲掉,因为是重新create
// 第三行标题
sheet.addMergedRegion(new CellRangeAddress(2, 2, 0, head0.length - 1));
row = sheet.createRow(2);
row.setHeight((short) 0x270);
cell = row.createCell(0);
cell.setCellValue("建设项目名称:");
cell.setCellStyle(style3);
// 第四行表头列名
// String[] head0 = new String[]
// { " ", "招标范围", "招标范围", "招标组织形式", "招标组织形式", "招标方式", "招标方式", "不采用招标方式"
// };
// 在excel中的第4行每列的参数
row = sheet.createRow(3);
for (int i = 0; i < head0.length; i++) {
cell = row.createCell(i);
row.setHeight((short) 0x270);
cell.setCellValue(head0[i]);
cell.setCellStyle(style2);
}
// String[] headnum0 = new String[]
// { "3,4,0,0", "3,3,1,2", "3,3,3,4", "3,3,5,6", "3,4,7,7" };
// 对应excel中的行和列,下表从0开始{"开始行,结束行,开始列,结束列"}
// 动态合并单元格
for (int i = 0; i < headnum0.length; i++) {
String[] temp = headnum0[i].split(",");
Integer startrow = Integer.parseInt(temp[0]);
Integer overrow = Integer.parseInt(temp[1]);
Integer startcol = Integer.parseInt(temp[2]);
Integer overcol = Integer.parseInt(temp[3]);
sheet.addMergedRegion(new CellRangeAddress(startrow, overrow, startcol, overcol));
}
// 设置合并单元格的参数并初始化带边框的表头(这样做可以避免因为合并单元格后有的单元格的边框显示不出来)
row = sheet.createRow(4);// 因为下标从0开始,所以这里表示的是excel中的第五行
for (int i = 0; i < head0.length; i++) {
cell = row.createCell(i);
cell.setCellStyle(style2);// 设置excel中第五行的1、8列的边框 ,即合并单元的上下单元格都要添加边框
}
for (int j = 0; j < head1.length; j++) {
cell = row.createCell(j + 1);
row.setHeight((short) 0x270);
cell.setCellValue(head1[j]);
cell.setCellStyle(style2);
}
// 动态合并单元格
for (int i = 0; i < headnum1.length; i++) {
String[] temp = headnum1[i].split(",");
Integer startrow = Integer.parseInt(temp[0]);
Integer overrow = Integer.parseInt(temp[1]);
Integer startcol = Integer.parseInt(temp[2]);
Integer overcol = Integer.parseInt(temp[3]);
sheet.addMergedRegion(new CellRangeAddress(startrow, overrow, startcol, overcol));
}
// 列名
for (int i = 0; i < column0.length; i++) {
row = sheet.createRow(i + 5);
row.setHeight((short) 0x270);
cell = row.createCell(0);
cell.setCellValue(column0[i]);
cell.setCellStyle(style2);
}
sheet.addMergedRegion(new CellRangeAddress(column0.length + 5, column0.length + 5, 0, head0.length - 1));
row = sheet.createRow(column0.length + 5);
row.setHeight((short) 0x820);
cell = row.createCell(0);
cell.setCellValue("意见说明:");
cell.setCellStyle(style4);
cell = row.createCell(head0.length - 1);// 最后一格加上右边框
cell.setCellStyle(styleRight);
sheet.addMergedRegion(new CellRangeAddress(column0.length + 6, column0.length + 6, 5, 6));
row = sheet.createRow(column0.length + 6);
row.setHeight((short) 0x320);
cell = row.createCell(5);
cell.setCellValue("部门盖章");
cell.setCellStyle(style3);
cell = row.createCell(head0.length - 1);// 最后一格加上右边框
cell.setCellStyle(styleRight);
// 普通单元格样式(中文) 无边框
HSSFCellStyle styleDate = wb.createCellStyle();
styleDate.setFont(font2);
styleDate.setWrapText(true); // 换行
styleDate.setVerticalAlignment(HSSFCellStyle.VERTICAL_CENTER);// 上下居中
styleDate.setAlignment(HSSFCellStyle.ALIGN_CENTER);// 左右居中
styleDate.setBorderBottom(HSSFCellStyle.BORDER_THIN); // 下边框
sheet.addMergedRegion(new CellRangeAddress(column0.length + 7, column0.length + 7, 5, 6));
row = sheet.createRow(column0.length + 7);
row.setHeight((short) 0x460);
// 表格底部添加下边框
for (int i = 0; i < head0.length; i++) {
cell = row.createCell(i);
cell.setCellStyle(styleBottom);
}
cell = row.createCell(5);
cell.setCellValue("年 月 日");
cell.setCellStyle(styleDate);
cell = row.createCell(head0.length - 1);// 最后一格加上右边框,下边框
cell.setCellStyle(style_RB);
sheet.addMergedRegion(new CellRangeAddress(column0.length + 8, column0.length + 8, 0, head0.length - 1));
row = sheet.createRow(column0.length + 8);
row.setHeight((short) 0x270);
cell = row.createCell(0);
cell.setCellValue("注:部门在空格注明“核准”或者“不予核准”。");
cell.setCellStyle(style3);
try {
// 普通文件流下载方式
/*
* FileOutputStream fout = new FileOutputStream("E:/students.xls");
* wb.write(fout); fout.close();
*/
ByteArrayOutputStream os = new ByteArrayOutputStream();
wb.write(os);
// 调用浏览器自带的下载器,要先将数据转成byte流
byte[] content = os.toByteArray();
response.setContentType("application/x-download");
response.setHeader("Content-disposition", "attachment; filename=" + "ApprovalBidding.xls");
response.getOutputStream().write(content);
response.getOutputStream().flush();
response.getOutputStream().close();
os.flush();
os.close();
} catch (Exception e) {
e.printStackTrace();
}
}
效果图: