springboot项目导出excel 合并单元格表格

    /**
     * 导出学员学习数据统计列表
     */
    @RequiresPermissions("project:userLearningData:export")
    @PostMapping("/export")
    @ResponseBody
    public AjaxResult export(UserLearningData userLearningData)
    {
        PageHelper.startPage(1, 10, null);
        List<UserLearningData> list = userLearningDataService.selectUserLearningDataList(userLearningData);
        MyExcelUtil<UserLearningData> util = new MyExcelUtil<UserLearningData>(UserLearningData.class);
        return util.exportExcel(list, "userLearningData",true);
    }

  /**
     * 查询学员学习数据统计列表
     * 
     * @param userLearningData 学员学习数据统计信息
     * @return 学员学习数据统计集合
     */
  @Override
  public List<UserLearningData> selectUserLearningDataList(UserLearningData userLearningData)
  {
    List<UserLearningData> list = userLearningDataMapper.selectUserLearningDataList(userLearningData);
    if (CollectionUtils.isNotEmpty(list)) {
      for (UserLearningData uld : list) {
        //用户名
        AppUser appUser = appUserMapper.selectUserById(uld.getUserId());
        uld.setUserName(appUser.getUserName());
        //年份 激活日期
        UserExtend userExtend = userExtendMapper.selectUserExtendById(uld.getUserExtendId());
        uld.setActivateDate(userExtend.getActivateDate());
        uld.setYear(userExtend.getYear());
        //商品等级
        Goods goods = goodsMapper.selectGoodsById(userExtend.getGoodsId());
        uld.setGoodsLevel(goods.getGoodsLevel());
        //学习进度
        Long learningDuration = uld.getLearningDuration();
        Long totalDuration = uld.getTotalDuration();
        if (learningDuration != null && totalDuration != null && totalDuration != 0) {
          double v = learningDuration.doubleValue() / totalDuration * 100;
          BigDecimal bigDecimal = BigDecimal.valueOf(v);
          BigDecimal decimal = bigDecimal.setScale(1, BigDecimal.ROUND_HALF_UP);
          uld.setLearningRate(decimal);
        }
        //听课时长
        Long listeningDuration = uld.getListeningDuration();
        double v1 = listeningDuration.doubleValue() / 60 / 60;
        long round = Math.round(v1);
        uld.setListeningDuration(round);
        //科目成绩信息
        List<UserExaminationResults> userExaminationResults = userExaminationResultsMapper.selectUserExaminationByUserExtendId(uld.getUserExtendId());
        if (CollectionUtils.isNotEmpty(userExaminationResults)) {
          List<Map> scoreParams = new ArrayList<>();
          int size = userExaminationResults.size();
          for (int i = 0; i < size; i++) {
            UserExaminationResults uer = userExaminationResults.get(i);
            Map m = new HashMap(4);
            m.put("actualScore",uer.getActualScore());
            m.put("estimatedScore",uer.getEstimatedScore());
            m.put("accuracy",uer.getAccuracy());
            scoreParams.add(m);
          }
          uld.setScoreParams(scoreParams);
        }
        //反馈意见
        UserFeedback uf = userFeedbackMapper.selectUserFeedbackByUserExtendId(uld.getUserExtendId());
        if (uf != null) {
          // 获取意见内容
          String opinionContent = uf.getOpinionContent();
          if (StringUtil.isNotEmptyString(opinionContent)) {
            //查询指定编码的内容
            String opinion = dictMapper.selectDictByKeyCode(Convert.toStrArray(opinionContent));
            uld.setOpinionContent(opinion);
          }
          //获取 其他 的内容
          if (StringUtil.isNotEmptyString(uf.getOtherContent())) {
            uld.setOtherContent(uf.getOtherContent());
          }
        }
      }
    }
    return list;
  }

package com.dongao.project.userlearningdata.domain;
import com.dongao.project.annotation.MyExcel;
import com.dongao.project.annotation.MyExcels;
import com.ruoyi.framework.web.domain.BaseEntity;
import org.apache.commons.lang3.builder.ToStringBuilder;
import org.apache.commons.lang3.builder.ToStringStyle;
import java.math.BigDecimal;
import java.util.Date;
import java.util.List;
import java.util.Map;
/**
 * 学员学习数据统计表 qs_study_user_learning_data
 * 
 * @author dongao
 * @date 2021-05-17
 */
public class UserLearningData extends BaseEntity
{
  private static final long serialVersionUID = 1L;
  /** 主键id */
  private Long id;
  /** 用户拓展id */
  private Long userExtendId;
  /** 用户id */
  private Long userId;
  /** 已学学习时长 */
  private Long learningDuration;
  /** 总学习时长 */
  private Long totalDuration;
  /** 听课次数 */
  private Integer listeningNumber;
  /** 做题多少套 */
  private Integer paperNumber;
  /** 展示的老师ids 逗号分隔 */
  private String showTeachers;
  /** 备考总的知识点 */
  private Integer allKnowledge;
  /** 已掌握的知识点数 */
  private Integer masterKnowledge;
  /** 逻辑删除0.无效1.有效 */
  private Integer isValid;
  /** 用户名 */
  @MyExcel(name="用户名")
  private String userName;
  /** 年份 */
  @MyExcel(name="年份")
  private Integer year;
  /** 商品等级 */
  @MyExcel(name="商品等级",readConverterExp="1=单老师,2=全老师")
  private Integer goodsLevel;
  /** 激活时间 */
  @MyExcel(name="激活时间",dateFormat = "yyyy-MM-dd HH:mm:ss")
  private Date activateDate;
  /**学习进度*/
  @MyExcel(name="学习进度(%)")
  private BigDecimal learningRate;
  /** 听课时长单位s */
  @MyExcel(name="听课(h)")
  private Long listeningDuration;
  /** 做题题数 */
  @MyExcel(name="刷题")
  private Integer questionNumber;
  @MyExcels({
      @MyExcel(name="实际分数",targetAttr = "0.actualScore",parentName = "初级会计实务"),
      @MyExcel(name="预估分数",targetAttr = "0.estimatedScore",parentName = "初级会计实务"),
      @MyExcel(name="正确率",targetAttr = "0.accuracy",parentName = "初级会计实务"),
      @MyExcel(name="实际分数",targetAttr = "1.actualScore",parentName = "经济法基础"),
      @MyExcel(name="预估分数",targetAttr = "1.estimatedScore",parentName = "经济法基础"),
      @MyExcel(name="正确率",targetAttr = "1.accuracy",parentName = "经济法基础")
  })
  private List<Map> scoreParams;
  /** 反馈的内容 */
  @MyExcel(name="反馈")
  private String opinionContent;
  /** 当勾选了其他之后输入的内容 */
  @MyExcel(name="其他")
  private String otherContent;
  public List<Map> getScoreParams() {
    return scoreParams;
  }
  public void setScoreParams(List<Map> scoreParams) {
    this.scoreParams = scoreParams;
  }
  public void setId(Long id)
  {
    this.id = id;
  }
  public Long getId()
  {
    return id;
  }
  public void setUserExtendId(Long userExtendId)
  {
    this.userExtendId = userExtendId;
  }
  public Long getUserExtendId()
  {
    return userExtendId;
  }
  public void setUserId(Long userId)
  {
    this.userId = userId;
  }
  public Long getUserId()
  {
    return userId;
  }
  public void setLearningDuration(Long learningDuration)
  {
    this.learningDuration = learningDuration;
  }
  public Long getLearningDuration()
  {
    return learningDuration;
  }
  public void setTotalDuration(Long totalDuration)
  {
    this.totalDuration = totalDuration;
  }
  public Long getTotalDuration()
  {
    return totalDuration;
  }
  public void setListeningDuration(Long listeningDuration)
  {
    this.listeningDuration = listeningDuration;
  }
  public Long getListeningDuration()
  {
    return listeningDuration;
  }
  public void setListeningNumber(Integer listeningNumber)
  {
    this.listeningNumber = listeningNumber;
  }
  public Integer getListeningNumber()
  {
    return listeningNumber;
  }
  public void setPaperNumber(Integer paperNumber)
  {
    this.paperNumber = paperNumber;
  }
  public Integer getPaperNumber()
  {
    return paperNumber;
  }
  public void setQuestionNumber(Integer questionNumber)
  {
    this.questionNumber = questionNumber;
  }
  public Integer getQuestionNumber()
  {
    return questionNumber;
  }
  public void setShowTeachers(String showTeachers)
  {
    this.showTeachers = showTeachers;
  }
  public String getShowTeachers()
  {
    return showTeachers;
  }
  public void setAllKnowledge(Integer allKnowledge)
  {
    this.allKnowledge = allKnowledge;
  }
  public Integer getAllKnowledge()
  {
    return allKnowledge;
  }
  public void setMasterKnowledge(Integer masterKnowledge)
  {
    this.masterKnowledge = masterKnowledge;
  }
  public Integer getMasterKnowledge()
  {
    return masterKnowledge;
  }
  public void setIsValid(Integer isValid)
  {
    this.isValid = isValid;
  }
  public Integer getIsValid()
  {
    return isValid;
  }
  public String getUserName() {
    return userName;
  }
  public void setUserName(String userName) {
    this.userName = userName;
  }
  public Integer getYear() {
    return year;
  }
  public void setYear(Integer year) {
    this.year = year;
  }
  public Date getActivateDate() {
    return activateDate;
  }
  public void setActivateDate(Date activateDate) {
    this.activateDate = activateDate;
  }
  public Integer getGoodsLevel() {
    return goodsLevel;
  }
  public void setGoodsLevel(Integer goodsLevel) {
    this.goodsLevel = goodsLevel;
  }
  public BigDecimal getLearningRate() {
    return learningRate;
  }
  public void setLearningRate(BigDecimal learningRate) {
    this.learningRate = learningRate;
  }
  public String getOpinionContent() {
    return opinionContent;
  }
  public void setOpinionContent(String opinionContent) {
    this.opinionContent = opinionContent;
  }
  public String getOtherContent() {
    return otherContent;
  }
  public void setOtherContent(String otherContent) {
    this.otherContent = otherContent;
  }
}

package com.dongao.project.annotation;
import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;
/**
 * 自定义导出Excel数据注解
 * 
 * @author ruoyi
 */
@Retention(RetentionPolicy.RUNTIME)
@Target(ElementType.FIELD)
public @interface MyExcel
{
    /**
     * 导出到Excel中的名字.
     */
    public String name() default "";
    /**
     * 导出到Excel中的名字.
     */
    public String parentName() default "";
    /**
     * 日期格式, 如: yyyy-MM-dd
     */
    public String dateFormat() default "";
    /**
     * 读取内容转表达式 (如: 0=男,1=女,2=未知)
     */
    public String readConverterExp() default "";
    /**
     * 导出类型（0数字 1字符串）
     */
    public ColumnType cellType() default ColumnType.STRING;
    /**
     * 导出时在excel中每个列的高度 单位为字符
     */
    public double height() default 14;
    /**
     * 导出时在excel中每个列的宽 单位为字符
     */
    public double width() default 16;
    /**
     * 文字后缀,如% 90 变成90%
     */
    public String suffix() default "";
    /**
     * 当值为空时,字段的默认值
     */
    public String defaultValue() default "";
    /**
     * 提示信息
     */
    public String prompt() default "";
    /**
     * 设置只能选择不能输入的列内容.
     */
    public String[] combo() default {};
    /**
     * 是否导出数据,应对需求:有时我们需要导出一份模板,这是标题需要但内容需要用户手工填写.
     */
    public boolean isExport() default true;
    /**
     * 另一个类中的属性名称,支持多级获取,以小数点隔开
     */
    public String targetAttr() default "";
    /**
     * 字段类型（0：导出导入；1：仅导出；2：仅导入）
     */
    Type type() default Type.ALL;
    public enum Type
    {
        ALL(0), EXPORT(1), IMPORT(2);
        private final int value;
        Type(int value)
        {
            this.value = value;
        }
        public int value()
        {
            return this.value;
        }
    }
    public enum ColumnType
    {
        NUMERIC(0), STRING(1);
        private final int value;
        ColumnType(int value)
        {
            this.value = value;
        }
        public int value()
        {
            return this.value;
        }
    }
}

package com.dongao.project.annotation;
import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;
/**
 * Excel注解集
 * 
 * @author ruoyi
 */
@Target(ElementType.FIELD)
@Retention(RetentionPolicy.RUNTIME)
public @interface MyExcels
{
    MyExcel[] value();
}

package com.dongao.project.utils.poi;
import com.dongao.project.annotation.MyExcel;
import com.dongao.project.annotation.MyExcels;
import com.dongao.project.utils.StringUtil;
import com.ruoyi.common.exception.BusinessException;
import com.ruoyi.common.utils.DateUtils;
import com.ruoyi.common.utils.StringUtils;
import com.ruoyi.framework.config.RuoYiConfig;
import com.ruoyi.framework.web.domain.AjaxResult;
import org.apache.poi.hssf.usermodel.HSSFDateUtil;
import org.apache.poi.ss.usermodel.*;
import org.apache.poi.ss.util.CellRangeAddress;
import org.apache.poi.ss.util.CellRangeAddressList;
import org.apache.poi.xssf.streaming.SXSSFWorkbook;
import org.apache.poi.xssf.usermodel.XSSFDataValidation;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.lang.reflect.Field;
import java.lang.reflect.Method;
import java.text.DecimalFormat;
import java.util.*;
/**
 * Excel相关处理
 * 
 * @author ruoyi
 */
public class MyExcelUtil<T>
{
    private static final Logger log = LoggerFactory.getLogger(com.ruoyi.common.utils.poi.ExcelUtil.class);
    /**
     * Excel sheet最大行数，默认65536
     */
    public static final int sheetSize = 65536;
    /**
     * 工作表名称
     */
    private String sheetName;
    /**
     * 导出类型（EXPORT:导出数据；IMPORT：导入模板）
     */
    private MyExcel.Type type;
    /**
     * 工作薄对象
     */
    private Workbook wb;
    /**
     * 工作表对象
     */
    private Sheet sheet;
    /**
     * 样式列表
     */
    private Map<String, CellStyle> styles;
    /**
     * 导入导出数据列表
     */
    private List<T> list;
    /**
     * 注解列表
     */
    private List<Object[]> fields;
    /**
     * 注解列表
     */
    private List<Object[]> parentFields;
    /**
     * 实体对象
     */
    public Class<T> clazz;
    public MyExcelUtil(Class<T> clazz)
    {
        this.clazz = clazz;
    }
    public void init(List<T> list, String sheetName, MyExcel.Type type,boolean flag)
    {
        if (list == null)
        {
            list = new ArrayList<T>();
        }
        this.list = list;
        this.sheetName = sheetName;
        this.type = type;
        if (flag) {
            createParentExcelField();
        }
        createExcelField();
        createWorkbook();
    }
    /**
     * 对list数据源将其里面的数据导入到excel表单
     * 
     * @param list 导出数据集合
     * @param sheetName 工作表的名称
     * @return 结果
     */
    public AjaxResult exportExcel(List<T> list, String sheetName,boolean flag)
    {
        this.init(list, sheetName, MyExcel.Type.EXPORT,flag);
        return exportExcel(flag);
    }
    /**
     * 对list数据源将其里面的数据导入到excel表单
     * 
     * @return 结果
     */
    public AjaxResult exportExcel(boolean flag)
    {
        OutputStream out = null;
        try
        {
            // 取出一共有多少个sheet.
            double sheetNo = Math.ceil(list.size() / sheetSize);
            for (int index = 0; index <= sheetNo; index++)
            {
                createSheet(sheetNo, index);
                Row row1 = null;
                if (flag) {
                    //头标题
                    int size = parentFields.size();
                    int start = 0;
                    Set set = new HashSet();
                    for (int i = 0; i < size; i++) {
                        CellRangeAddress cellRangeAddress = null;
                        CellRangeAddress cellRangeAddress1 = null;
                        Object[] os = parentFields.get(i);
                        MyExcel excel = (MyExcel) os[1];
                        String input = excel.parentName();
                        if (StringUtil.isNotEmptyString(input)) {
                            if (set.contains(input)) {
                            }else {
                                //开始合并科目一的
                                if (start > 0) {
                                    cellRangeAddress = new CellRangeAddress(0, 0, start, i-1);
                                }
                                start = i;
                                set.add(input);
                            }
                        }else {
                            if (set.isEmpty()) {
                                // 起始行号，结束行号，起始列号，结束列号
                                cellRangeAddress = new CellRangeAddress(0, 1, i, i);
                            }else {
                                //开始合并科目二的
                                cellRangeAddress = new CellRangeAddress(0, 0, start, i-1);
                                start = 0;
                                set.clear();
                                //科目二的合并完了同时记得合并当前列的
                                cellRangeAddress1 = new CellRangeAddress(0, 1, i, i);
                            }
                        }
                        if (cellRangeAddress != null) {
                            sheet.addMergedRegion(cellRangeAddress);
                        }
                        if (cellRangeAddress1 != null) {
                            sheet.addMergedRegion(cellRangeAddress1);
                        }
                    }
                    row1 = sheet.createRow(1);
                }
                // 产生一行
                Row row = sheet.createRow(0);
                int column = 0;
                // 写入各个字段的列头名称
                for (Object[] os : fields)
                {
                    MyExcel excel = (MyExcel) os[1];
                    this.createCell(excel, row, column);
                    if (StringUtil.isNotEmptyString(excel.parentName())) {
                        this.createCell1(excel, row1, column);
                    }
                    column++;
                }
                if (MyExcel.Type.EXPORT.equals(type))
                {
                    fillExcelData(index, row);
                }
            }
            String filename = encodingFilename(sheetName);
            out = new FileOutputStream(getAbsoluteFile(filename));
            wb.write(out);
            return AjaxResult.success(filename);
        }
        catch (Exception e)
        {
            e.printStackTrace();
            log.error("导出Excel异常{}", e.getMessage());
            throw new BusinessException("导出Excel失败，请联系网站管理员！");
        }
        finally
        {
            if (wb != null)
            {
                try
                {
                    wb.close();
                }
                catch (IOException e1)
                {
                    e1.printStackTrace();
                }
            }
            if (out != null)
            {
                try
                {
                    out.close();
                }
                catch (IOException e1)
                {
                    e1.printStackTrace();
                }
            }
        }
    }
    /**
     * 填充excel数据
     * 
     * @param index 序号
     * @param row 单元格行
     */
    public void fillExcelData(int index, Row row)
    {
        int startNo = index * sheetSize;
        int endNo = Math.min(startNo + sheetSize, list.size());
        for (int i = startNo; i < endNo; i++)
        {
            row = sheet.createRow(i + 2 - startNo);
            // 得到导出对象.
            T vo = (T) list.get(i);
            int column = 0;
            for (Object[] os : fields)
            {
                Field field = (Field) os[0];
                MyExcel excel = (MyExcel) os[1];
                // 设置实体类私有属性可访问
                field.setAccessible(true);
                this.addCell(excel, row, vo, field, column++);
            }
        }
    }
    /**
     * 创建表格样式
     * 
     * @param wb 工作薄对象
     * @return 样式列表
     */
    private Map<String, CellStyle> createStyles(Workbook wb)
    {
        // 写入各条记录,每条记录对应excel表中的一行
        Map<String, CellStyle> styles = new HashMap<String, CellStyle>();
        CellStyle style = wb.createCellStyle();
        style.setAlignment(HorizontalAlignment.CENTER);
        style.setVerticalAlignment(VerticalAlignment.CENTER);
        style.setBorderRight(BorderStyle.THIN);
        style.setRightBorderColor(IndexedColors.GREY_50_PERCENT.getIndex());
        style.setBorderLeft(BorderStyle.THIN);
        style.setLeftBorderColor(IndexedColors.GREY_50_PERCENT.getIndex());
        style.setBorderTop(BorderStyle.THIN);
        style.setTopBorderColor(IndexedColors.GREY_50_PERCENT.getIndex());
        style.setBorderBottom(BorderStyle.THIN);
        style.setBottomBorderColor(IndexedColors.GREY_50_PERCENT.getIndex());
        Font dataFont = wb.createFont();
        dataFont.setFontName("Arial");
        dataFont.setFontHeightInPoints((short) 10);
        style.setFont(dataFont);
        styles.put("data", style);
        style = wb.createCellStyle();
        style.cloneStyleFrom(styles.get("data"));
        style.setAlignment(HorizontalAlignment.CENTER);
        style.setVerticalAlignment(VerticalAlignment.CENTER);
        style.setFillForegroundColor(IndexedColors.GREY_50_PERCENT.getIndex());
        style.setFillPattern(FillPatternType.SOLID_FOREGROUND);
        Font headerFont = wb.createFont();
        headerFont.setFontName("Arial");
        headerFont.setFontHeightInPoints((short) 10);
        headerFont.setBold(true);
        headerFont.setColor(IndexedColors.WHITE.getIndex());
        style.setFont(headerFont);
        styles.put("header", style);
        return styles;
    }
    /**
     * 创建单元格
     */
    public Cell createCell(MyExcel attr, Row row, int column)
    {
        // 创建列
        Cell cell = row.createCell(column);
        // 写入列信息
        if (StringUtil.isNotEmptyString(attr.parentName())) {
            cell.setCellValue(attr.parentName());
        }else {
            cell.setCellValue(attr.name());
        }
        setDataValidation(attr, row, column);
        cell.setCellStyle(styles.get("header"));
        return cell;
    }
    /**
     * 创建单元格
     */
    public Cell createCell1(MyExcel attr, Row row, int column)
    {
        // 创建列
        Cell cell = row.createCell(column);
        cell.setCellValue(attr.name());
        setDataValidation(attr, row, column);
        cell.setCellStyle(styles.get("header"));
        return cell;
    }
    /**
     * 设置单元格信息
     * 
     * @param value 单元格值
     * @param attr 注解相关
     * @param cell 单元格信息
     */
    public void setCellVo(Object value, MyExcel attr, Cell cell)
    {
        if (MyExcel.ColumnType.STRING == attr.cellType())
        {
            cell.setCellType(CellType.NUMERIC);
            cell.setCellValue(StringUtils.isNull(value) ? attr.defaultValue() : value + attr.suffix());
        }
        else if (MyExcel.ColumnType.NUMERIC == attr.cellType())
        {
            cell.setCellType(CellType.NUMERIC);
            cell.setCellValue(Integer.parseInt(value + ""));
        }
    }
    /**
     * 创建表格样式
     */
    public void setDataValidation(MyExcel attr, Row row, int column)
    {
        if (attr.name().indexOf("注：") >= 0)
        {
            sheet.setColumnWidth(column, 6000);
        }
        else
        {
            // 设置列宽
            sheet.setColumnWidth(column, (int) ((attr.width() + 0.72) * 256));
            row.setHeight((short) (attr.height() * 20));
        }
        // 如果设置了提示信息则鼠标放上去提示.
        if (StringUtils.isNotEmpty(attr.prompt()))
        {
            // 这里默认设了2-101列提示.
            setXSSFPrompt(sheet, "", attr.prompt(), 1, 100, column, column);
        }
        // 如果设置了combo属性则本列只能选择不能输入
        if (attr.combo().length > 0)
        {
            // 这里默认设了2-101列只能选择不能输入.
            setXSSFValidation(sheet, attr.combo(), 1, 100, column, column);
        }
    }
    /**
     * 添加单元格
     */
    public Cell addCell(MyExcel attr, Row row, T vo, Field field, int column)
    {
        Cell cell = null;
        try
        {
            // 设置行高
            row.setHeight((short) (attr.height() * 20));
            // 根据Excel中设置情况决定是否导出,有些情况需要保持为空,希望用户填写这一列.
            if (attr.isExport())
            {
                // 创建cell
                cell = row.createCell(column);
                cell.setCellStyle(styles.get("data"));
                // 用于读取对象中的属性
                Object value = getTargetValue(vo, field, attr);
                String dateFormat = attr.dateFormat();
                String readConverterExp = attr.readConverterExp();
                if (StringUtils.isNotEmpty(dateFormat) && StringUtils.isNotNull(value))
                {
                    cell.setCellValue(DateUtils.parseDateToStr(dateFormat, (Date) value));
                }
                else if (StringUtils.isNotEmpty(readConverterExp) && StringUtils.isNotNull(value))
                {
                    cell.setCellValue(convertByExp(String.valueOf(value), readConverterExp));
                }
                else
                {
                    // 设置列类型
                    setCellVo(value, attr, cell);
                }
            }
        }
        catch (Exception e)
        {
            log.error("导出Excel失败{}", e);
        }
        return cell;
    }
    /**
     * 设置 POI XSSFSheet 单元格提示
     * 
     * @param sheet 表单
     * @param promptTitle 提示标题
     * @param promptContent 提示内容
     * @param firstRow 开始行
     * @param endRow 结束行
     * @param firstCol 开始列
     * @param endCol 结束列
     */
    public void setXSSFPrompt(Sheet sheet, String promptTitle, String promptContent, int firstRow, int endRow,
            int firstCol, int endCol)
    {
        DataValidationHelper helper = sheet.getDataValidationHelper();
        DataValidationConstraint constraint = helper.createCustomConstraint("DD1");
        CellRangeAddressList regions = new CellRangeAddressList(firstRow, endRow, firstCol, endCol);
        DataValidation dataValidation = helper.createValidation(constraint, regions);
        dataValidation.createPromptBox(promptTitle, promptContent);
        dataValidation.setShowPromptBox(true);
        sheet.addValidationData(dataValidation);
    }
    /**
     * 设置某些列的值只能输入预制的数据,显示下拉框.
     * 
     * @param sheet 要设置的sheet.
     * @param textlist 下拉框显示的内容
     * @param firstRow 开始行
     * @param endRow 结束行
     * @param firstCol 开始列
     * @param endCol 结束列
     * @return 设置好的sheet.
     */
    public void setXSSFValidation(Sheet sheet, String[] textlist, int firstRow, int endRow, int firstCol, int endCol)
    {
        DataValidationHelper helper = sheet.getDataValidationHelper();
        // 加载下拉列表内容
        DataValidationConstraint constraint = helper.createExplicitListConstraint(textlist);
        // 设置数据有效性加载在哪个单元格上,四个参数分别是：起始行、终止行、起始列、终止列
        CellRangeAddressList regions = new CellRangeAddressList(firstRow, endRow, firstCol, endCol);
        // 数据有效性对象
        DataValidation dataValidation = helper.createValidation(constraint, regions);
        // 处理Excel兼容性问题
        if (dataValidation instanceof XSSFDataValidation)
        {
            dataValidation.setSuppressDropDownArrow(true);
            dataValidation.setShowErrorBox(true);
        }
        else
        {
            dataValidation.setSuppressDropDownArrow(false);
        }
        sheet.addValidationData(dataValidation);
    }
    /**
     * 解析导出值 0=男,1=女,2=未知
     * 
     * @param propertyValue 参数值
     * @param converterExp 翻译注解
     * @return 解析后值
     * @throws Exception
     */
    public static String convertByExp(String propertyValue, String converterExp) throws Exception
    {
        try
        {
            String[] convertSource = converterExp.split(",");
            for (String item : convertSource)
            {
                String[] itemArray = item.split("=");
                if (itemArray[0].equals(propertyValue))
                {
                    return itemArray[1];
                }
            }
        }
        catch (Exception e)
        {
            throw e;
        }
        return propertyValue;
    }
    /**
     * 反向解析值 男=0,女=1,未知=2
     * 
     * @param propertyValue 参数值
     * @param converterExp 翻译注解
     * @return 解析后值
     * @throws Exception
     */
    public static String reverseByExp(String propertyValue, String converterExp) throws Exception
    {
        try
        {
            String[] convertSource = converterExp.split(",");
            for (String item : convertSource)
            {
                String[] itemArray = item.split("=");
                if (itemArray[1].equals(propertyValue))
                {
                    return itemArray[0];
                }
            }
        }
        catch (Exception e)
        {
            throw e;
        }
        return propertyValue;
    }
    /**
     * 编码文件名
     */
    public String encodingFilename(String filename)
    {
        filename = UUID.randomUUID().toString() + "_" + filename + ".xlsx";
        return filename;
    }
    /**
     * 获取下载路径
     * 
     * @param filename 文件名称
     */
    public String getAbsoluteFile(String filename)
    {
        String downloadPath = RuoYiConfig.getDownloadPath() + filename;
        File desc = new File(downloadPath);
        if (!desc.getParentFile().exists())
        {
            desc.getParentFile().mkdirs();
        }
        return downloadPath;
    }
    /**
     * 获取bean中的属性值
     * 
     * @param vo 实体对象
     * @param field 字段
     * @param excel 注解
     * @return 最终的属性值
     * @throws Exception
     */
    private Object getTargetValue(T vo, Field field, MyExcel excel) throws Exception
    {
        Object o = field.get(vo);
        if (StringUtils.isNotEmpty(excel.targetAttr()))
        {
            String target = excel.targetAttr();
            if (target.indexOf(".") > -1)
            {
                String[] targets = target.split("[.]");
                if (o instanceof List) {
                    Map map = (Map) ((List) o).get(Integer.parseInt(targets[0]));
                    o = map.get(targets[1]);
                }else {
                    for (String name : targets)
                    {
                        o = getValue(o, name);
                    }
                }
            }
            else
            {
                o = getValue(o, target);
            }
        }
        return o;
    }
    /**
     * 以类的属性的get方法方法形式获取值
     * 
     * @param o
     * @param name
     * @return value
     * @throws Exception
     */
    private Object getValue(Object o, String name) throws Exception
    {
        if (StringUtils.isNotEmpty(name))
        {
            Class<?> clazz = o.getClass();
            String methodName = "get" + name.substring(0, 1).toUpperCase() + name.substring(1);
            Method method = clazz.getMethod(methodName);
            o = method.invoke(o);
        }
        return o;
    }
    /**
     * 得到所有定义字段
     */
    private void createExcelField()
    {
        this.fields = new ArrayList<Object[]>();
        List<Field> tempFields = new ArrayList<>();
        tempFields.addAll(Arrays.asList(clazz.getSuperclass().getDeclaredFields()));
        tempFields.addAll(Arrays.asList(clazz.getDeclaredFields()));
        for (Field field : tempFields)
        {
            // 单注解
            if (field.isAnnotationPresent(MyExcel.class))
            {
                putToField(field, field.getAnnotation(MyExcel.class));
            }
            // 多注解
            if (field.isAnnotationPresent(MyExcels.class))
            {
                MyExcels attrs = field.getAnnotation(MyExcels.class);
                MyExcel[] excels = attrs.value();
                for (MyExcel excel : excels)
                {
                    putToField(field, excel);
                }
            }
        }
    }
    /**
     * 得到所有定义字段
     */
    private void createParentExcelField()
    {
        this.parentFields = new ArrayList<Object[]>();
        List<Field> tempFields = new ArrayList<>();
        tempFields.addAll(Arrays.asList(clazz.getSuperclass().getDeclaredFields()));
        tempFields.addAll(Arrays.asList(clazz.getDeclaredFields()));
        for (Field field : tempFields)
        {
            // 单注解
            if (field.isAnnotationPresent(MyExcel.class))
            {
                putToParentField(field, field.getAnnotation(MyExcel.class));
            }
            // 多注解
            if (field.isAnnotationPresent(MyExcels.class))
            {
                MyExcels attrs = field.getAnnotation(MyExcels.class);
                MyExcel[] excels = attrs.value();
                for (MyExcel excel : excels)
                {
                    putToParentField(field, excel);
                }
            }
        }
    }
    /**
     * 放到字段集合中
     */
    private void putToField(Field field, MyExcel attr)
    {
        if (attr != null && (attr.type() == MyExcel.Type.ALL || attr.type() == type))
        {
            this.fields.add(new Object[] { field, attr });
        }
    }
    /**
     * 放到字段集合中
     */
    private void putToParentField(Field field, MyExcel attr)
    {
        if (attr != null && (attr.type() == MyExcel.Type.ALL || attr.type() == type))
        {
            this.parentFields.add(new Object[] { field, attr });
        }
    }
    /**
     * 创建一个工作簿
     */
    public void createWorkbook()
    {
        this.wb = new SXSSFWorkbook(500);
    }
    /**
     * 创建工作表
     * 
     * @param sheetNo sheet数量
     * @param index 序号
     */
    public void createSheet(double sheetNo, int index)
    {
        this.sheet = wb.createSheet();
        this.styles = createStyles(wb);
        // 设置工作表的名称.
        if (sheetNo == 0)
        {
            wb.setSheetName(index, sheetName);
        }
        else
        {
            wb.setSheetName(index, sheetName + index);
        }
    }
    /**
     * 获取单元格值
     * 
     * @param row 获取的行
     * @param column 获取单元格列号
     * @return 单元格值
     */
    public Object getCellValue(Row row, int column)
    {
        if (row == null)
        {
            return row;
        }
        Object val = "";
        try
        {
            Cell cell = row.getCell(column);
            if (StringUtils.isNotNull(cell))
            {
                if (cell.getCellTypeEnum() == CellType.NUMERIC || cell.getCellTypeEnum() == CellType.FORMULA)
                {
                    val = cell.getNumericCellValue();
                    if (HSSFDateUtil.isCellDateFormatted(cell))
                    {
                        val = DateUtil.getJavaDate((Double) val); // POI Excel 日期格式转换
                    }
                    else
                    {
                        if ((Double) val % 1 > 0)
                        {
                            val = new DecimalFormat("0.00").format(val);
                        }
                        else
                        {
                            val = new DecimalFormat("0").format(val);
                        }
                    }
                }
                else if (cell.getCellTypeEnum() == CellType.STRING)
                {
                    val = cell.getStringCellValue();
                }
                else if (cell.getCellTypeEnum() == CellType.BOOLEAN)
                {
                    val = cell.getBooleanCellValue();
                }
                else if (cell.getCellTypeEnum() == CellType.ERROR)
                {
                    val = cell.getErrorCellValue();
                }
            }
        }
        catch (Exception e)
        {
            return val;
        }
        return val;
    }
}