1.前端如果用xlsx格式接收表格 后台用XSSFWorkbook workbook = new XSSFWorkbook();创建工作薄
response.setContentType("application/vnd.openxmlformats-officedocument.spreadsheetml.sheet");
response.addHeader("Content-Disposition", "attachment;filename=fileName" + ".xlsx");
2.前端如果用xls格式接收表格 后台 用HSSFWorkbook workbook = new HSSFWorkbook();创建工作薄
response.setContentType("application/vnd.ms-excel");
response.addHeader("Content-Disposition", "attachment;filename=fileName"+".xls");
步骤：
1 $("#exportBtn").click(function() { 2 var start_tjsj = $('#start_tjsj').val(); 3 var end_tjsj = $('#end_tjsj').val(); 4 5 var searchCondition = $('#searchCondition option:selected').val(); 6 window.parent.location.href = "../QtAjtj/exportQtAgtj?start_tjsj=" + start_tjsj+ "&end_tjsj=" + end_tjsj; 7 8 });
1 public void exportAytj(List<Aytj> aytjlist,String titleName) { 2 ServletOutputStream out=null; 3 4 //向指定的Excel中写入数据 5 //设置最大数据行数 6 SXSSFWorkbook wb = new SXSSFWorkbook(5000); 7 8 try { 9 10 Map<String,List<CellModel>> map = new HashMap<String,List<CellModel>>(); 11 // 设置数据 12 List<CellModel> firstRow = new ArrayList<CellModel>(); 13 CellModel cellModel1 = new CellModel(); 14 //总占用2行 15 Integer cellRow = 2; 16 cellModel1.setCellName("案由"); 17 cellModel1.setStartRow(1); 18 cellModel1.setEndRow(2); 19 cellModel1.setStartColumn(0); 20 cellModel1.setEndColumn(0); 21 22 CellModel cellModel2 = new CellModel(); 23 cellModel2.setCellName("侦监"); 24 cellModel2.setStartRow(1); 25 cellModel2.setEndRow(1); 26 cellModel2.setStartColumn(1); 27 cellModel2.setEndColumn(4); 28 29 CellModel cellModel3 = new CellModel(); 30 cellModel3.setCellName("公诉"); 31 cellModel3.setStartRow(1); 32 cellModel3.setEndRow(1); 33 cellModel3.setStartColumn(5); 34 cellModel3.setEndColumn(8); 35 36 CellModel cellModel4 = new CellModel(); 37 cellModel4.setCellName("合计"); 38 cellModel4.setStartRow(1); 39 cellModel4.setEndRow(2); 40 cellModel4.setStartColumn(9); 41 cellModel4.setEndColumn(9); 42 43 firstRow.add(cellModel1); 44 firstRow.add(cellModel2); 45 firstRow.add(cellModel3); 46 firstRow.add(cellModel4); 47 map.put("0", firstRow); 48 49 List<CellModel> secondRow = new ArrayList<CellModel>(); 50 CellModel cellModel5 = new CellModel(); 51 cellModel5.setCellName("收案"); 52 cellModel5.setStartRow(2); 53 cellModel5.setEndRow(2); 54 cellModel5.setStartColumn(1); 55 cellModel5.setEndColumn(1); 56 57 CellModel cellModel6 = new CellModel(); 58 cellModel6.setCellName("分案"); 59 cellModel6.setStartRow(2); 60 cellModel6.setEndRow(2); 61 cellModel6.setStartColumn(2); 62 cellModel6.setEndColumn(2); 63 64 CellModel cellModel7 = new CellModel(); 65 cellModel7.setCellName("在办"); 66 cellModel7.setStartRow(2); 67 cellModel7.setEndRow(2); 68 cellModel7.setStartColumn(3); 69 cellModel7.setEndColumn(3); 70 71 CellModel cellModel8 = new CellModel(); 72 cellModel8.setCellName("结案"); 73 cellModel8.setStartRow(2); 74 cellModel8.setEndRow(2); 75 cellModel8.setStartColumn(4); 76 cellModel8.setEndColumn(4); 77 78 CellModel cellModel9 = new CellModel(); 79 cellModel9.setCellName("收案"); 80 cellModel9.setStartRow(2); 81 cellModel9.setEndRow(2); 82 cellModel9.setStartColumn(5); 83 cellModel9.setEndColumn(5); 84 85 CellModel cellModel10 = new CellModel(); 86 cellModel10.setCellName("分案"); 87 cellModel10.setStartRow(2); 88 cellModel10.setEndRow(2); 89 cellModel10.setStartColumn(6); 90 cellModel10.setEndColumn(6); 91 92 CellModel cellModel11 = new CellModel(); 93 cellModel11.setCellName("在办"); 94 cellModel11.setStartRow(2); 95 cellModel11.setEndRow(2); 96 cellModel11.setStartColumn(7); 97 cellModel11.setEndColumn(7); 98 99 CellModel cellModel12 = new CellModel(); 100 cellModel12.setCellName("结案"); 101 cellModel12.setStartRow(2); 102 cellModel12.setEndRow(2); 103 cellModel12.setStartColumn(8); 104 cellModel12.setEndColumn(8); 105 106 secondRow.add(cellModel5); 107 secondRow.add(cellModel6); 108 secondRow.add(cellModel7); 109 secondRow.add(cellModel8); 110 secondRow.add(cellModel9); 111 secondRow.add(cellModel10); 112 secondRow.add(cellModel11); 113 secondRow.add(cellModel12); 114 map.put("1", secondRow); 115 116 117 List<LinkedHashMap> exportData = new ArrayList<LinkedHashMap>(); 118 if(aytjlist != null && !aytjlist.isEmpty()) { 119 for (int i = 0; i < aytjlist.size(); i++) { 120 121 Aytj aytj = aytjlist.get(i); 122 LinkedHashMap<String, Object> rowPut = new LinkedHashMap<String, Object>(); 123 rowPut.put("1", aytj.getAy()); 124 rowPut.put("2", aytj.getZjsacount()); 125 rowPut.put("3", aytj.getZjfacount()); 126 rowPut.put("4", aytj.getZjzbcount()); 127 rowPut.put("5", aytj.getZjbjcount()); 128 129 rowPut.put("6", aytj.getGssacount()); 130 rowPut.put("7", aytj.getGsfacount()); 131 rowPut.put("8", aytj.getGszbcount()); 132 rowPut.put("9", aytj.getGsbjcount()); 133 rowPut.put("10", aytj.getAjcount()); 134 exportData.add(rowPut); 135 } 136 } 137 Integer columnSize = 10; 138 139 140 wb = ExcelUtils.createCSVUtil("案由统计",titleName,wb, map, cellRow,columnSize, exportData,"aytj"); 141 142 SimpleDateFormat format = new SimpleDateFormat("yyyyMMddHHmmss"); 143 String fileName = "案由统计_" +format.format(new Date()) ; 144 //解决IE文件名乱码 145 String userAgent = request.getHeader("user-agent"); 146 if (userAgent != null && userAgent.indexOf("Firefox") >= 0 || userAgent.indexOf("Chrome") >= 0 147 || userAgent.indexOf("Safari") >= 0) { 148 fileName= new String(fileName.getBytes("utf-8"),"ISO8859_1"); 149 } else { 150 fileName= URLEncoder.encode(fileName,"UTF8"); //其他浏览器 151 152 } 153 response.setContentType("application/vnd.openxmlformats-officedocument.spreadsheetml.sheet"); 154 response.addHeader("Content-Disposition", "attachment;filename=" +fileName+ ".xlsx"); 155 /* response.reset(); 156 //设置response的Header 157 response.addHeader("Content-Disposition", "attachment;filename="+ fileName + ".xls"); 158 //out = new BufferedOutputStream(response.getOutputStream());*/ 159 out=response.getOutputStream(); 160 // response.setContentType("application/vnd.ms-excel;charset=utf-8"); 161 162 //创建一个输出流 163 ServletOutputStream outputStream = response.getOutputStream(); 164 //写入数据 165 wb.write(outputStream); 166 167 // 关闭 168 outputStream.close(); 169 wb.close(); 170 171 } catch (Exception e) { 172 e.printStackTrace(); 173 } finally { 174 if (out != null) { 175 try { 176 out.close(); 177 } catch (IOException e) {} 178 } 179 if (wb != null) { 180 wb.dispose();//删除保存的临时文件。 181 } 182 } 183 184 }
poi使用SXSSFWorkbook生成表格（用于生成复杂表头）
1 package com.netmarch.ajgl.common.utils.exportExcel; 2 3 import org.apache.poi.ss.usermodel.*; 4 import org.apache.poi.ss.util.CellRangeAddress; 5 import org.apache.poi.ss.util.RegionUtil; 6 import org.apache.poi.xssf.streaming.SXSSFCell; 7 import org.apache.poi.xssf.streaming.SXSSFRow; 8 import org.apache.poi.xssf.streaming.SXSSFSheet; 9 import org.apache.poi.xssf.streaming.SXSSFWorkbook; 10 import org.apache.poi.xssf.usermodel.XSSFCell; 11 12 import java.util.Iterator; 13 import java.util.LinkedHashMap; 14 import java.util.List; 15 import java.util.Map; 16 17 /** 18 * @Author: songyaru 19 * @Date: 2020/5/14 8:58 20 * @Version 1.0 21 */ 22 public class ExcelUtils { 23 24 /** 25 * 生成表格（用于生成复杂表头） 26 * 27 * @param sheetName sheet名称 28 * @param wb 表对象 29 * @param cellListMap 表头数据 {key=cellRowNum-1} 30 * @param cellRowNum 表头总占用行数 31 * @param exportData 行数据 32 * @return 33 * @throws Exception 34 */ 35 @SuppressWarnings({"rawtypes", "unchecked"}) 36 public static SXSSFWorkbook createCSVUtil(String sheetName,String titleName, SXSSFWorkbook wb, Map<String, List<CellModel>> cellListMap, 37 Integer cellRowNum,Integer columnSize, List<LinkedHashMap> exportData,String tjType) throws Exception { 38 //设置表格名称 39 SXSSFSheet sheet = (SXSSFSheet) wb.createSheet(sheetName); 40 sheet.trackAllColumnsForAutoSizing(); 41 sheet.autoSizeColumn(1, true); 42 43 //标题字体 44 Font titleFont = wb.createFont(); 45 titleFont.setFontName("宋体"); 46 titleFont.setFontHeightInPoints((short) 18); 47 // headerFont.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD);//粗体显示 48 titleFont.setBold(true);//粗体显示 49 titleFont.setColor(IndexedColors.BLACK.getIndex()); 50 51 //表头 52 Font headerFont = wb.createFont(); 53 headerFont.setFontName("宋体"); 54 headerFont.setFontHeightInPoints((short) 14); 55 // headerFont.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD);//粗体显示 56 headerFont.setBold(true);//粗体显示 57 headerFont.setColor(IndexedColors.BLACK.getIndex()); 58 59 //正文字体 60 Font contextFont = wb.createFont(); 61 contextFont.setFontName("宋体"); 62 contextFont.setFontHeightInPoints((short) 12); 63 64 contextFont.setColor(IndexedColors.BLACK.getIndex()); 65 66 //标题样式，左右上下居中 67 CellStyle titleStyle = wb.createCellStyle(); 68 titleStyle.setFont(titleFont); 69 titleStyle.setAlignment(HorizontalAlignment.CENTER);// 左右居中 70 titleStyle.setVerticalAlignment(VerticalAlignment.CENTER);// 上下居中 71 titleStyle.setLocked(true); 72 titleStyle.setBorderBottom(BorderStyle.THIN); //下边框 73 74 //表头样式，左右上下居中 75 CellStyle headerStyle = wb.createCellStyle(); 76 headerStyle.setFont(headerFont); 77 headerStyle.setAlignment(HorizontalAlignment.CENTER);// 左右居中 78 headerStyle.setVerticalAlignment(VerticalAlignment.CENTER);// 上下居中 79 headerStyle.setLocked(true); 80 headerStyle.setWrapText(false);// 自动换行 81 headerStyle.setBorderBottom(BorderStyle.THIN); //下边框 82 headerStyle.setBorderLeft(BorderStyle.THIN);//左边框 83 headerStyle.setBorderTop(BorderStyle.THIN);//上边框 84 headerStyle.setBorderRight(BorderStyle.THIN);//右边框 85 86 //单元格样式，左右上下居中 边框 87 CellStyle commonStyle = wb.createCellStyle(); 88 commonStyle.setFont(contextFont); 89 commonStyle.setAlignment(HorizontalAlignment.CENTER);// 左右居中 90 commonStyle.setVerticalAlignment(VerticalAlignment.CENTER);// 上下居中 91 commonStyle.setWrapText(false);// 自动换行 92 commonStyle.setBorderBottom(BorderStyle.THIN); //下边框 93 commonStyle.setBorderLeft(BorderStyle.THIN);//左边框 94 commonStyle.setBorderTop(BorderStyle.THIN);//上边框 95 commonStyle.setBorderRight(BorderStyle.THIN);//右边框 96 97 //单元格样式，竖向 边框 98 CellStyle verticalStyle = wb.createCellStyle(); 99 verticalStyle.setFont(contextFont); 100 verticalStyle.setAlignment(HorizontalAlignment.CENTER);// 左右居中 101 verticalStyle.setVerticalAlignment(VerticalAlignment.CENTER);// 上下居中 102 verticalStyle.setRotation((short) 255);//竖向 103 verticalStyle.setLocked(true); 104 verticalStyle.setWrapText(false);// 自动换行 105 verticalStyle.setBorderBottom(BorderStyle.THIN); //下边框 106 verticalStyle.setBorderLeft(BorderStyle.THIN);//左边框 107 verticalStyle.setBorderTop(BorderStyle.THIN);//上边框 108 verticalStyle.setBorderRight(BorderStyle.THIN);//右边框 109 110 111 // 产生表格标题行 112 Row titleRow = sheet.createRow(0); 113 Cell cellTiltle = titleRow.createCell(0); 114 sheet.setDefaultColumnWidth(15); 115 CellRangeAddress titelCellRange=new CellRangeAddress(0, 0, 0, (columnSize - 1)); 116 sheet.addMergedRegion(titelCellRange); 117 RegionUtil.setBorderBottom(BorderStyle.THIN, titelCellRange, sheet);//设置合并单元格的边框 118 /*设置行高*/ 119 titleRow.setHeight((short)800); 120 121 cellTiltle.setCellStyle(titleStyle); 122 cellTiltle.setCellValue(titleName); 123 124 125 for (int t = 0; t < cellRowNum; t++) { 126 SXSSFRow row = (SXSSFRow) sheet.createRow(t+1); 127 List<CellModel> cellNameList = cellListMap.get(String.valueOf(t)); 128 129 for (CellModel cellModel : cellNameList) { 130 if (cellModel.getStartRow() == cellModel.getEndRow() && cellModel.getStartColumn() == cellModel.getEndColumn()) { 131 //【开始行和结束行在同一行】 和 【开始列和结束列在同一列】同时出现的话，那就没有合并单元格的意义了。 132 } else { 133 CellRangeAddress cellRangeAddress=new CellRangeAddress(cellModel.getStartRow(), 134 cellModel.getEndRow(), cellModel.getStartColumn(), cellModel.getEndColumn()); 135 sheet.addMergedRegion(cellRangeAddress); 136 } 137 } 138 139 for (int i = 0; i < cellNameList.size(); i++) { 140 CellModel cellModel = cellNameList.get(i); 141 // 遍历插入表头 142 SXSSFCell cell = (SXSSFCell) row.createCell(cellModel.getStartColumn()); 143 cell.setCellValue(cellModel.getCellName()); 144 cell.setCellStyle(headerStyle); 145 } 146 } 147 for (LinkedHashMap hashMap : exportData) { 148 SXSSFRow rowValue = (SXSSFRow) sheet.createRow(cellRowNum+1); 149 Iterator<Map.Entry> iteratorRow = hashMap.entrySet().iterator(); 150 while (iteratorRow.hasNext()) { 151 Map.Entry entryRow = iteratorRow.next(); 152 Integer key = Integer.valueOf(entryRow.getKey().toString()); 153 String value = ""; 154 if (entryRow.getValue() != null) { 155 value = entryRow.getValue().toString(); 156 } else { 157 value = ""; 158 } 159 SXSSFCell cellValue = (SXSSFCell) rowValue.createCell(key - 1); 160 cellValue.setCellValue(value); 161 cellValue.setCellStyle(commonStyle); 162 } 163 cellRowNum++; 164 } 165 166 167 /*设置行宽*/ 168 int columnWidth[] = {8000, 3000, 3000, 3000, 3000, 3000, 3000, 3000, 3000, 3000}; 169 for (int i = 0; i < columnSize; i++) { 170 sheet.setColumnWidth(i, columnWidth[i]); 171 } 172 //合并单元框边框有问题，需要在全部单元格合并之后调整边框,否则会覆盖的 173 CellRangeAddress cellRangeAddress = new CellRangeAddress(1, 2, 9, 9); 174 RegionUtil.setBorderRight(BorderStyle.THIN, cellRangeAddress, sheet);//设置合并单元格的右边框 175 176 177 178 /* 179 // 设置为根据内容自动调整列宽 必须在单元格设值以后进行 180 for (int k = 0; k < exportData .size(); k++) { 181 sheet.autoSizeColumn(k); 182 } 183 // 处理中文不能自动调整列宽的问题 184 setSizeColumn(sheet, exportData.size());*/ 185 186 187 return wb; 188 } 189 190 //poi设置自适应列宽 191 private static void setSizeColumn(SXSSFSheet sheet, int size) { 192 for (int columnNum = 0; columnNum < size; columnNum++) { 193 int columnWidth = sheet.getColumnWidth(columnNum) / 256; 194 for (int rowNum = 0; rowNum < sheet.getLastRowNum(); rowNum++) { 195 SXSSFRow currentRow; 196 //当前行未被使用过 197 if (sheet.getRow(rowNum) == null) { 198 currentRow = sheet.createRow(rowNum); 199 } else { 200 currentRow = sheet.getRow(rowNum); 201 } 202 203 if (currentRow.getCell(columnNum) != null) { 204 SXSSFCell currentCell = currentRow.getCell(columnNum); 205 if (currentCell.getCellType() == XSSFCell.CELL_TYPE_STRING) { 206 int length = currentCell.getStringCellValue().getBytes().length; 207 if (columnWidth < length) { 208 columnWidth = length; 209 } 210 } 211 } 212 } 213 sheet.setColumnWidth(columnNum, columnWidth * 256); 214 } 215 } 216 217 }
效果：
