POI导出复杂表头报表

如下图，需要做如下报表表头的导出，表头有合并行、合并列。
layui本身没有复杂表头导出的方法，所以根据POI做导出。

dao层：

public class CellModel {
/**
* 用于设置复杂表头
* @author asus
**/
private StringcellName;
private IntegerstartRow;//起始行
private IntegerstartColumn;//起始列
private IntegerendRow;//结束行
private IntegerendColumn;//结束列

public String getCellName() {

return cellName;

}

public void setCellName(String cellName) {

this.cellName = cellName;

}

public Integer getStartRow() {

return startRow;

}

public void setStartRow(Integer startRow) {

this.startRow = startRow;

}

public Integer getStartColumn() {

return startColumn;

}

public void setStartColumn(Integer startColumn) {

this.startColumn = startColumn;

}

public Integer getEndRow() {

return endRow;

}

public void setEndRow(Integer endRow) {

this.endRow = endRow;

}

public Integer getEndColumn() {

return endColumn;

}

public void setEndColumn(Integer endColumn) {

this.endColumn = endColumn;

}

}

POIUtils类：

public class ExcelUtils {

/**
* 生成表格（用于生成复杂表头）
* @param sheetName sheet名称
* @param wb 表对象
* @param cellListMap 表头数据 {key=cellRowNum-1}
* @param cellRowNum 表头总占用行数
* @param exportData 行数据
* @return
* @throws Exception
*/

@SuppressWarnings({"rawtypes","unchecked" })
public static SXSSFWorkbook createCSVUtil(String sheetName, SXSSFWorkbook wb, Map> cellListMap,Integer cellRowNum, List exportData)throws Exception {

//设置表格名称

SXSSFSheet sheet = (SXSSFSheet) wb.createSheet(sheetName);

//如果报错，把这个注释掉就

//sheet.autoSizeColumn(1, true);

XSSFCellStyle cellStyle = (XSSFCellStyle) wb.createCellStyle();

//设置单元格内容水平对齐

cellStyle.setAlignment(HorizontalAlignment.CENTER);

//cellStyle.setAlignment(HSSFCellStyle.ALIGN_CENTER);

//设置单元格内容垂直对齐

cellStyle.setVerticalAlignment(VerticalAlignment.CENTER);

//设置自动换行

cellStyle.setWrapText(true);

for(int t =0; t < cellRowNum; t++) {

SXSSFRow row = (SXSSFRow) sheet.createRow(t);

List cellNameList = cellListMap.get(String.valueOf(t));

for (CellModel cellModel : cellNameList) {

//如果有不需要合并的行，需加此判断，不然会报错

if (cellModel.getEndRow() - cellModel.getStartRow() ==0 &&

cellModel.getEndColumn() - cellModel.getStartColumn() ==0) {

continue;

}else {

sheet.addMergedRegion(new CellRangeAddress(cellModel.getStartRow(),

cellModel.getEndRow(), cellModel.getStartColumn(), cellModel.getEndColumn()));

}

}

for (int i =0; i < cellNameList.size(); i++) {

CellModel cellModel = cellNameList.get(i);

// 遍历插入表头

SXSSFCell cell = (SXSSFCell) row.createCell(cellModel.getStartColumn());

cell.setCellValue(cellModel.getCellName());

cell.setCellStyle(cellStyle);

wb.createFont().setBold(true);

}

}

for (LinkedHashMap hashMap : exportData) {

SXSSFRow rowValue = (SXSSFRow) sheet.createRow(cellRowNum);

Iterator iteratorRow = hashMap.entrySet().iterator();

while (iteratorRow.hasNext()) {

Map.Entry entryRow = iteratorRow.next();

Integer key = Integer.valueOf(entryRow.getKey().toString());

String value ="";

if (entryRow.getValue() !=null) {

value = entryRow.getValue().toString();

}else {

value ="";

}

SXSSFCell cellValue = (SXSSFCell) rowValue.createCell(key -1);

cellValue.setCellValue(value);

cellValue.setCellStyle(cellStyle);

}

cellRowNum++;

}

return wb;

}

}

设计表头，调用工具栏导出报表：

@RequestMapping(value ="/getAssistantVisitExport", method = RequestMethod.GET)

@ResponseBody

@Logsrecord(dowhat ="医助回访结果导出")

public JSONObject getAssistantVisitExport(@RequestParam Map map, HttpServletResponse response)throws Exception {

//向指定的Excel中写入数据

OutputStream out =null;

//设置最大数据行数

SXSSFWorkbook wb =new SXSSFWorkbook();

try {

String tabName ="患者随访统计表";

Map rowMap =new HashMap>();

// 设置数据

List firstRow =new ArrayList();

CellModel cellModel1 =new CellModel();

//总占用2行

Integer cellRow =2;

cellModel1.setCellName("医馆名称");

cellModel1.setStartRow(0);

cellModel1.setEndRow(1);

cellModel1.setStartColumn(0);

cellModel1.setEndColumn(0);

CellModel cellModel2 =new CellModel();

cellModel2.setCellName("看诊效果");

cellModel2.setStartRow(0);

cellModel2.setEndRow(0);

cellModel2.setStartColumn(1);

cellModel2.setEndColumn(10);

firstRow.add(cellModel1);

firstRow.add(cellModel2);

rowMap.put("0", firstRow );

List secondRow  =new ArrayList();

CellModel cellMode21 =new CellModel();

cellMode21.setCellName("有效回访条数");

cellMode21.setStartRow(1);

cellMode21.setEndRow(1);

cellMode21.setStartColumn(1);

cellMode21.setEndColumn(1);

CellModel cellMode22 =new CellModel();

cellMode22.setCellName("没有效果");

cellMode22.setStartRow(1);

cellMode22.setEndRow(1);

cellMode22.setStartColumn(2);

cellMode22.setEndColumn(2);

CellModel cellMode23 =new CellModel();

cellMode23.setCellName("一般");

cellMode23.setStartRow(1);

cellMode23.setEndRow(1);

cellMode23.setStartColumn(3);

cellMode23.setEndColumn(3);

CellModel cellMode24 =new CellModel();

cellMode24.setCellName("效果好");

cellMode24.setStartRow(1);

cellMode24.setEndRow(1);

cellMode24.setStartColumn(4);

cellMode24.setEndColumn(4);

CellModel cellMode25 =new CellModel();

cellMode25.setCellName("本周好评率");

cellMode25.setStartRow(1);

cellMode25.setEndRow(1);

cellMode25.setStartColumn(5);

cellMode25.setEndColumn(5);

CellModel cellMode26 =new CellModel();

cellMode26.setCellName("上周好评率");

cellMode26.setStartRow(1);

cellMode26.setEndRow(1);

cellMode26.setStartColumn(6);

cellMode26.setEndColumn(6);

CellModel cellMode27 =new CellModel();

cellMode27.setCellName("环比");

cellMode27.setStartRow(1);

cellMode27.setEndRow(1);

cellMode27.setStartColumn(7);

cellMode27.setEndColumn(7);

CellModel cellMode28 =new CellModel();

cellMode28.setCellName("本周差评率");

cellMode28.setStartRow(1);

cellMode28.setEndRow(1);

cellMode28.setStartColumn(8);

cellMode28.setEndColumn(8);

CellModel cellMode29 =new CellModel();

cellMode29.setCellName("上周差评率");

cellMode29.setStartRow(1);

cellMode29.setEndRow(1);

cellMode29.setStartColumn(9);

cellMode29.setEndColumn(9);

CellModel cellMode210 =new CellModel();

cellMode210.setCellName("环比");

cellMode210.setStartRow(1);

cellMode210.setEndRow(1);

cellMode210.setStartColumn(10);

cellMode210.setEndColumn(10);

secondRow .add(cellMode21);

secondRow .add(cellMode22);

secondRow .add(cellMode23);

secondRow .add(cellMode24);

secondRow .add(cellMode25);

secondRow .add(cellMode26);

secondRow .add(cellMode27);

secondRow .add(cellMode28);

secondRow .add(cellMode29);

secondRow .add(cellMode210);

rowMap.put("1", secondRow );

List> list =visitReportBiz.getAssistantVisitResult(map);

List exportData =new ArrayList();

for (int i =0; i < list.size(); i++) {

Map map1 = list.get(i);

LinkedHashMap rowPut =new LinkedHashMap();

rowPut.put("1", (String) map1.get("HOSPITAL_NAME"));

rowPut.put("2", String.valueOf(map1.get("SUCCESS_COUNT")));

rowPut.put("3", String.valueOf(map1.get("NO_EFFECT")));

rowPut.put("4", String.valueOf(map1.get("GENERAL")));

rowPut.put("5", String.valueOf(map1.get("GOOD")));

rowPut.put("6", String.valueOf(map1.get("FAVORABLE_RATING_THISWEEK")));

rowPut.put("7", String.valueOf(map1.get("FAVORABLE_RATING_LASTWEEK")));

rowPut.put("8", String.valueOf(map1.get("GOOD_SEQUENTIAL")));

rowPut.put("9", String.valueOf(map1.get("BAD_RATING_THISWEEK")));

rowPut.put("10",String.valueOf(map1.get("BAD_RATING_LASTWEEK")));

rowPut.put("11",String.valueOf(map1.get("BAD_SEQUENTIAL")));

exportData.add(rowPut);

}

// 用于写入文件

wb = ExcelUtils.createCSVUtil(tabName,wb, rowMap, cellRow, exportData);

SimpleDateFormat sdf =new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");

Date date =new Date();

String sd = sdf.format(date);

// 设置文件名，加上格式化的时间

String excelName = tabName + sd +".xlsx";

String s_attachment ="attachment; filename=" + excelName;

// 设置字符编码的格式

s_attachment =new String(s_attachment.getBytes("gb2312"),"ISO8859-1");

response.setHeader("Content-disposition", s_attachment);// 设定输出文件头

response.setContentType("application/vnd.ms-excel");// 定义输出类型

response.setContentType("text/plain;charset=UTF-8");

out = response.getOutputStream();

wb.write(out);

out.flush();

}catch (Exception e) {

e.printStackTrace();

}finally {

if (out !=null) {

try {

out.close();

return null;

}catch (Exception e) {}

}

if (wb !=null) {

wb.dispose();

}

}

return null;

}