文件导入导出代码,Java代码库,德仔网

代码语言
代码分类
【Java】文件导入导出
作者: / 发布于2016/4/12/ 587
/**
 * Copyright &copy; 2012-2014 <a href="https://github.com/thinkgem/jeesite">JeeSite</a> All rights reserved.
 */
package com.thinkgem.jeesite.common.utils.excel;
 
import java.io.FileNotFoundException;
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.Collections;
import java.util.Comparator;
import java.util.Date;
import java.util.HashMap;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
 
import javax.servlet.http.HttpServletResponse;
 
import org.apache.commons.lang3.StringUtils;
import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.CellStyle;
import org.apache.poi.ss.usermodel.Comment;
import org.apache.poi.ss.usermodel.DataFormat;
import org.apache.poi.ss.usermodel.Font;
import org.apache.poi.ss.usermodel.IndexedColors;
import org.apache.poi.ss.usermodel.Row;
import org.apache.poi.ss.usermodel.Sheet;
import org.apache.poi.ss.usermodel.Workbook;
import org.apache.poi.ss.util.CellRangeAddress;
import org.apache.poi.xssf.streaming.SXSSFWorkbook;
import org.apache.poi.xssf.usermodel.XSSFClientAnchor;
import org.apache.poi.xssf.usermodel.XSSFRichTextString;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
 
import com.google.common.collect.Lists;
import com.thinkgem.jeesite.common.utils.DateUtils;
import com.thinkgem.jeesite.common.utils.Encodes;
import com.thinkgem.jeesite.common.utils.Reflections;
import com.thinkgem.jeesite.common.utils.excel.annotation.ExcelField;
import com.thinkgem.jeesite.modules.sys.utils.DictUtils;
 
/**
 * 导出Excel文件（导出“XLSX”格式，支持大数据量导出   @see org.apache.poi.ss.SpreadsheetVersion）
 * @author ThinkGem
 * @version 2013-04-21
 */
public class ExportExcel {
     
    private static Logger log = LoggerFactory.getLogger(ExportExcel.class);
             
    /**
     * 工作薄对象
     */
    private SXSSFWorkbook wb;
     
    /**
     * 工作表对象
     */
    private Sheet sheet;
     
    /**
     * 样式列表
     */
    private Map<String, CellStyle> styles;
     
    /**
     * 当前行号
     */
    private int rownum;
     
    /**
     * 注解列表（Object[]{ ExcelField, Field/Method }）
     */
    List<Object[]> annotationList = Lists.newArrayList();
     
    /**
     * 字段map
     */
    LinkedHashMap<String,String> fieldMap;
     
    HashMap<String, String> dictTypes;
     
    /**
     * 构造函数
     * @param title 表格标题，传“空值”，表示无标题
     * @param cls 实体对象，通过annotation.ExportField获取标题
     */
    public ExportExcel(String title, Class<?> cls){
        this(title, cls, 1);
    }
     
    /**
     * 构造函数
     * @param title 表格标题，传“空值”，表示无标题
     * @param  fieldMap，获取要导出的字段和字段标题
     */
    public ExportExcel(String title, LinkedHashMap<String,String> fieldMap){
        this.fieldMap = fieldMap;
        dictTypes = new HashMap<String,String>();
        // Initialize
        int colunm = 0;
        List<String> headerList = Lists.newArrayList();
        for (String key : fieldMap.keySet()){
            String t = fieldMap.get(key);
            HashMap<String, String> map = com.thinkgem.jeesite.common.utils.StringUtils.toMap(t, ";", "=", false);
            if(map.get("name") != null){
                t = map.get("name");
            }
             
            if(map.get("dictType") != null){
                dictTypes.put(""+(colunm), map.get("dictType"));
            }
            colunm++;
            headerList.add(t);
        }
        initialize(title, headerList);
    }
     
    /**
     * 构造函数
     * @param title 表格标题，传“空值”，表示无标题
     * @param cls 实体对象，通过annotation.ExportField获取标题
     * @param type 导出类型（1:导出数据；2：导出模板）
     * @param groups 导入分组
     */
    public ExportExcel(String title, Class<?> cls, int type, int... groups){
        // Get annotation field 
        Field[] fs = cls.getDeclaredFields();
        for (Field f : fs){
            ExcelField ef = f.getAnnotation(ExcelField.class);
            if (ef != null && (ef.type()==0 || ef.type()==type)){
                if (groups!=null && groups.length>0){
                    boolean inGroup = false;
                    for (int g : groups){
                        if (inGroup){
                            break;
                        }
                        for (int efg : ef.groups()){
                            if (g == efg){
                                inGroup = true;
                                annotationList.add(new Object[]{ef, f});
                                break;
                            }
                        }
                    }
                }else{
                    annotationList.add(new Object[]{ef, f});
                }
            }
        }
        // Get annotation method
        Method[] ms = cls.getDeclaredMethods();
        for (Method m : ms){
            ExcelField ef = m.getAnnotation(ExcelField.class);
            if (ef != null && (ef.type()==0 || ef.type()==type)){
                if (groups!=null && groups.length>0){
                    boolean inGroup = false;
                    for (int g : groups){
                        if (inGroup){
                            break;
                        }
                        for (int efg : ef.groups()){
                            if (g == efg){
                                inGroup = true;
                                annotationList.add(new Object[]{ef, m});
                                break;
                            }
                        }
                    }
                }else{
                    annotationList.add(new Object[]{ef, m});
                }
            }
        }
        // Field sorting
        Collections.sort(annotationList, new Comparator<Object[]>() {
            public int compare(Object[] o1, Object[] o2) {
                return new Integer(((ExcelField)o1[0]).sort()).compareTo(
                        new Integer(((ExcelField)o2[0]).sort()));
            };
        });
        // Initialize
        List<String> headerList = Lists.newArrayList();
        for (Object[] os : annotationList){
            String t = ((ExcelField)os[0]).title();
            // 如果是导出，则去掉注释
            if (type==1){
                String[] ss = StringUtils.split(t, "**", 2);
                if (ss.length==2){
                    t = ss[0];
                }
            }
            headerList.add(t);
        }
        initialize(title, headerList);
    }
     
    /**
     * 构造函数
     * @param title 表格标题，传“空值”，表示无标题
     * @param headers 表头数组
     */
    public ExportExcel(String title, String[] headers) {
        initialize(title, Lists.newArrayList(headers));
    }
     
    /**
     * 构造函数
     * @param title 表格标题，传“空值”，表示无标题
     * @param headerList 表头列表
     */
    public ExportExcel(String title, List<String> headerList) {
        initialize(title, headerList);
    }
     
    /**
     * 初始化函数
     * @param title 表格标题，传“空值”，表示无标题
     * @param headerList 表头列表
     */
    private void initialize(String title, List<String> headerList) {
        this.wb = new SXSSFWorkbook(500);
        this.sheet = wb.createSheet("Export");
        this.styles = createStyles(wb);
        // Create title
        if (StringUtils.isNotBlank(title)){
            Row titleRow = sheet.createRow(rownum++);
            titleRow.setHeightInPoints(30);
            Cell titleCell = titleRow.createCell(0);
            titleCell.setCellStyle(styles.get("title"));
            titleCell.setCellValue(title);
            sheet.addMergedRegion(new CellRangeAddress(titleRow.getRowNum(),
                    titleRow.getRowNum(), titleRow.getRowNum(), headerList.size()-1));
        }
        // Create header
        if (headerList == null){
            throw new RuntimeException("headerList not null!");
        }
        Row headerRow = sheet.createRow(rownum++);
        headerRow.setHeightInPoints(16);
        for (int i = 0; i < headerList.size(); i++) {
            Cell cell = headerRow.createCell(i);
            cell.setCellStyle(styles.get("header"));
            String[] ss = StringUtils.split(headerList.get(i), "**", 2);
            if (ss.length==2){
                cell.setCellValue(ss[0]);
                Comment comment = this.sheet.createDrawingPatriarch().createCellComment(
                        new XSSFClientAnchor(0, 0, 0, 0, (short) 3, 3, (short) 5, 6));
                comment.setString(new XSSFRichTextString(ss[1]));
                cell.setCellComment(comment);
            }else{
                cell.setCellValue(headerList.get(i));
            }
            sheet.autoSizeColumn(i);
        }
        for (int i = 0; i < headerList.size(); i++) {  
            int colWidth = sheet.getColumnWidth(i)*2;
            sheet.setColumnWidth(i, colWidth < 3000 ? 3000 : colWidth);  
        }
        log.debug("Initialize success.");
    }
     
    /**
     * 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) {
        Map<String, CellStyle> styles = new HashMap<String, CellStyle>();
         
        CellStyle style = wb.createCellStyle();
        style.setAlignment(CellStyle.ALIGN_CENTER);
        style.setVerticalAlignment(CellStyle.VERTICAL_CENTER);
        Font titleFont = wb.createFont();
        titleFont.setFontName("Arial");
        titleFont.setFontHeightInPoints((short) 16);
        titleFont.setBoldweight(Font.BOLDWEIGHT_BOLD);
        style.setFont(titleFont);
        styles.put("title", style);
 
        style = wb.createCellStyle();
        style.setVerticalAlignment(CellStyle.VERTICAL_CENTER);
        style.setBorderRight(CellStyle.BORDER_THIN);
        style.setRightBorderColor(IndexedColors.GREY_50_PERCENT.getIndex());
        style.setBorderLeft(CellStyle.BORDER_THIN);
        style.setLeftBorderColor(IndexedColors.GREY_50_PERCENT.getIndex());
        style.setBorderTop(CellStyle.BORDER_THIN);
        style.setTopBorderColor(IndexedColors.GREY_50_PERCENT.getIndex());
        style.setBorderBottom(CellStyle.BORDER_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(CellStyle.ALIGN_LEFT);
        styles.put("data1", style);
 
        style = wb.createCellStyle();
        style.cloneStyleFrom(styles.get("data"));
        style.setAlignment(CellStyle.ALIGN_CENTER);
        styles.put("data2", style);
 
        style = wb.createCellStyle();
        style.cloneStyleFrom(styles.get("data"));
        style.setAlignment(CellStyle.ALIGN_RIGHT);
        styles.put("data3", style);
         
        style = wb.createCellStyle();
        style.cloneStyleFrom(styles.get("data"));
//      style.setWrapText(true);
        style.setAlignment(CellStyle.ALIGN_CENTER);
        style.setFillForegroundColor(IndexedColors.GREY_50_PERCENT.getIndex());
        style.setFillPattern(CellStyle.SOLID_FOREGROUND);
        Font headerFont = wb.createFont();
        headerFont.setFontName("Arial");
        headerFont.setFontHeightInPoints((short) 10);
        headerFont.setBoldweight(Font.BOLDWEIGHT_BOLD);
        headerFont.setColor(IndexedColors.WHITE.getIndex());
        style.setFont(headerFont);
        styles.put("header", style);
         
        return styles;
    }
 
    /**
     * 添加一行
     * @return 行对象
     */
    public Row addRow(){
        return sheet.createRow(rownum++);
    }
     
 
    /**
     * 添加一个单元格
     * @param row 添加的行
     * @param column 添加列号
     * @param val 添加值
     * @return 单元格对象
     */
    public Cell addCell(Row row, int column, Object val){
        return this.addCell(row, column, val, 0, Class.class);
    }
     
    /**
     * 添加一个单元格
     * @param row 添加的行
     * @param column 添加列号
     * @param val 添加值
     * @param align 对齐方式（1：靠左；2：居中；3：靠右）
     * @return 单元格对象
     */
    public Cell addCell(Row row, int column, Object val, int align, Class<?> fieldType){
         
        Cell cell = row.createCell(column);
        CellStyle style = styles.get("data"+(align>=1&&align<=3?align:""));
        try {
            if (val == null){
                cell.setCellValue("");
            } else if (val instanceof String) {
                cell.setCellValue((String) val);
            } else if (val instanceof Integer) {
                cell.setCellValue((Integer) val);
            } else if (val instanceof Long) {
                cell.setCellValue((Long) val);
            } else if (val instanceof Double) {
                cell.setCellValue(new DecimalFormat(".#####").format(val));   
            } else if (val instanceof Float) {
                cell.setCellValue((Float) val);
            } else if (val instanceof Date) {
                DataFormat format = wb.createDataFormat();
                style.setDataFormat(format.getFormat("yyyy-MM-dd"));
                cell.setCellValue(DateUtils.formatDateTime((Date)val));
            } else {
                if (fieldType != Class.class){
                    cell.setCellValue((String)fieldType.getMethod("setValue", Object.class).invoke(null, val));
                }else{
                    cell.setCellValue((String)Class.forName(this.getClass().getName().replaceAll(this.getClass().getSimpleName(), 
                        "fieldtype."+val.getClass().getSimpleName()+"Type")).getMethod("setValue", Object.class).invoke(null, val));
                }
            }
        } catch (Exception ex) {
            log.info("Set cell value ["+row.getRowNum()+","+column+"] error: " + ex.toString());
            cell.setCellValue(val.toString());
        }
        cell.setCellStyle(style);
        return cell;
    }
    /**
     * 添加数据（通过annotation.ExportField添加数据）
     * @return list 数据列表
     */
    public <E> ExportExcel setDataList(List<E> list){
        for (E e : list){
            int colunm = 0;
            Row row = this.addRow();
            StringBuilder sb = new StringBuilder();
             
            if(e instanceof Map){
                @SuppressWarnings("unchecked")
                Map<String,Object> map = (Map<String,Object>)e;
                for(String key : fieldMap.keySet()){
                    Object value = map.get(key);
                    String columnDictType = dictTypes.get(colunm+"");
                    if (StringUtils.isNotBlank(columnDictType)){
                        value = DictUtils.getDictLabel(value==null?"":value.toString(), columnDictType, "");
                    }
                    this.addCell(row, colunm++, value == null ? "" : value.toString(), 0, String.class);
                    sb.append(value + ", ");
                }
                 
            }
            else{
                 
                for (Object[] os : annotationList){
                    ExcelField ef = (ExcelField)os[0];
                    Object val = null;
                    // Get entity value
                    try{
                        if (StringUtils.isNotBlank(ef.value())){
                            val = Reflections.invokeGetter(e, ef.value());
                        }else{
                            if (os[1] instanceof Field){
                                val = Reflections.invokeGetter(e, ((Field)os[1]).getName());
                            }else if (os[1] instanceof Method){
                                val = Reflections.invokeMethod(e, ((Method)os[1]).getName(), new Class[] {}, new Object[] {});
                            }
                        }
                        // If is dict, get dict label
                        if (StringUtils.isNotBlank(ef.dictType())){
                            val = DictUtils.getDictLabel(val==null?"":val.toString(), ef.dictType(), "");
                        }
                    }catch(Exception ex) {
                        // Failure to ignore
                        log.info(ex.toString());
                        val = "";
                    }
                    this.addCell(row, colunm++, val, ef.align(), ef.fieldType());
                    sb.append(val + ", ");
                }
                log.debug("Write success: ["+row.getRowNum()+"] "+sb.toString());
            }
             
        }
        return this;
    }
     
    /**
     * 输出数据流
     * @param os 输出数据流
     */
    public ExportExcel write(OutputStream os) throws IOException{
        wb.write(os);
        return this;
    }
     
    /**
     * 输出到客户端
     * @param fileName 输出文件名
     */
    public ExportExcel write(HttpServletResponse response, String fileName) throws IOException{
        response.reset();
        response.setContentType("application/octet-stream; charset=utf-8");
        response.setHeader("Content-Disposition", "attachment; filename="+Encodes.urlEncode(fileName));
        write(response.getOutputStream());
        return this;
    }
     
    /**
     * 输出到文件
     * @param fileName 输出文件名
     */
    public ExportExcel writeFile(String name) throws FileNotFoundException, IOException{
        FileOutputStream os = new FileOutputStream(name);
        this.write(os);
        return this;
    }
     
    /**
     * 清理临时文件
     */
    public ExportExcel dispose(){
        wb.dispose();
        return this;
    }
     
//  /**
//   * 导出测试
//   */
//  public static void main(String[] args) throws Throwable {
//      
//      List<String> headerList = Lists.newArrayList();
//      for (int i = 1; i <= 10; i++) {
//          headerList.add("表头"+i);
//      }
//      
//      List<String> dataRowList = Lists.newArrayList();
//      for (int i = 1; i <= headerList.size(); i++) {
//          dataRowList.add("数据"+i);
//      }
//      
//      List<List<String>> dataList = Lists.newArrayList();
//      for (int i = 1; i <=1000000; i++) {
//          dataList.add(dataRowList);
//      }
//
//      ExportExcel ee = new ExportExcel("表格标题", headerList);
//      
//      for (int i = 0; i < dataList.size(); i++) {
//          Row row = ee.addRow();
//          for (int j = 0; j < dataList.get(i).size(); j++) {
//              ee.addCell(row, j, dataList.get(i).get(j));
//          }
//      }
//      
//      ee.writeFile("target/export.xlsx");
//
//      ee.dispose();
//      
//      log.debug("Export success.");
//      
//  }
 
}





 ImportExcel.java

/**
 * Copyright &copy; 2012-2014 <a href="https://github.com/thinkgem/jeesite">JeeSite</a> All rights reserved.
 */
package com.thinkgem.jeesite.common.utils.excel;
 
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.lang.reflect.Field;
import java.lang.reflect.Method;
import java.util.Collections;
import java.util.Comparator;
import java.util.Date;
import java.util.List;
 
import org.apache.commons.lang3.StringUtils;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.openxml4j.exceptions.InvalidFormatException;
import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.DateUtil;
import org.apache.poi.ss.usermodel.Row;
import org.apache.poi.ss.usermodel.Sheet;
import org.apache.poi.ss.usermodel.Workbook;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.web.multipart.MultipartFile;
 
import com.google.common.collect.Lists;
import com.thinkgem.jeesite.common.utils.Reflections;
import com.thinkgem.jeesite.common.utils.excel.annotation.ExcelField;
import com.thinkgem.jeesite.modules.sys.utils.DictUtils;
 
/**
 * 导入Excel文件（支持“XLS”和“XLSX”格式）
 * @author ThinkGem
 * @version 2013-03-10
 */
public class ImportExcel {
     
    private static Logger log = LoggerFactory.getLogger(ImportExcel.class);
             
    /**
     * 工作薄对象
     */
    private Workbook wb;
     
    /**
     * 工作表对象
     */
    private Sheet sheet;
     
    /**
     * 标题行号
     */
    private int headerNum;
     
    /**
     * 构造函数
     * @param path 导入文件，读取第一个工作表
     * @param headerNum 标题行号，数据行号=标题行号+1
     * @throws InvalidFormatException 
     * @throws IOException 
     */
    public ImportExcel(String fileName, int headerNum) 
            throws InvalidFormatException, IOException {
        this(new File(fileName), headerNum);
    }
     
    /**
     * 构造函数
     * @param path 导入文件对象，读取第一个工作表
     * @param headerNum 标题行号，数据行号=标题行号+1
     * @throws InvalidFormatException 
     * @throws IOException 
     */
    public ImportExcel(File file, int headerNum) 
            throws InvalidFormatException, IOException {
        this(file, headerNum, 0);
    }
 
    /**
     * 构造函数
     * @param path 导入文件
     * @param headerNum 标题行号，数据行号=标题行号+1
     * @param sheetIndex 工作表编号
     * @throws InvalidFormatException 
     * @throws IOException 
     */
    public ImportExcel(String fileName, int headerNum, int sheetIndex) 
            throws InvalidFormatException, IOException {
        this(new File(fileName), headerNum, sheetIndex);
    }
     
    /**
     * 构造函数
     * @param path 导入文件对象
     * @param headerNum 标题行号，数据行号=标题行号+1
     * @param sheetIndex 工作表编号
     * @throws InvalidFormatException 
     * @throws IOException 
     */
    public ImportExcel(File file, int headerNum, int sheetIndex) 
            throws InvalidFormatException, IOException {
        this(file.getName(), new FileInputStream(file), headerNum, sheetIndex);
    }
     
    /**
     * 构造函数
     * @param file 导入文件对象
     * @param headerNum 标题行号，数据行号=标题行号+1
     * @param sheetIndex 工作表编号
     * @throws InvalidFormatException 
     * @throws IOException 
     */
    public ImportExcel(MultipartFile multipartFile, int headerNum, int sheetIndex) 
            throws InvalidFormatException, IOException {
        this(multipartFile.getOriginalFilename(), multipartFile.getInputStream(), headerNum, sheetIndex);
    }
 
    /**
     * 构造函数
     * @param path 导入文件对象
     * @param headerNum 标题行号，数据行号=标题行号+1
     * @param sheetIndex 工作表编号
     * @throws InvalidFormatException 
     * @throws IOException 
     */
    public ImportExcel(String fileName, InputStream is, int headerNum, int sheetIndex) 
            throws InvalidFormatException, IOException {
        if (StringUtils.isBlank(fileName)){
            throw new RuntimeException("导入文档为空!");
        }else if(fileName.toLowerCase().endsWith("xls")){    
            this.wb = new HSSFWorkbook(is);    
        }else if(fileName.toLowerCase().endsWith("xlsx")){  
            this.wb = new XSSFWorkbook(is);
        }else{  
            throw new RuntimeException("文档格式不正确!");
        }  
        if (this.wb.getNumberOfSheets()<sheetIndex){
            throw new RuntimeException("文档中没有工作表!");
        }
        this.sheet = this.wb.getSheetAt(sheetIndex);
        this.headerNum = headerNum;
        log.debug("Initialize success.");
    }
     
    /**
     * 获取行对象
     * @param rownum
     * @return
     */
    public Row getRow(int rownum){
        return this.sheet.getRow(rownum);
    }
 
    /**
     * 获取数据行号
     * @return
     */
    public int getDataRowNum(){
        return headerNum+1;
    }
     
    /**
     * 获取最后一个数据行号
     * @return
     */
    public int getLastDataRowNum(){
        return this.sheet.getLastRowNum()+headerNum;
    }
     
    /**
     * 获取最后一个列号
     * @return
     */
    public int getLastCellNum(){
        return this.getRow(headerNum).getLastCellNum();
    }
     
    /**
     * 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){
        Object val = "";
        try{
            Cell cell = row.getCell(column);
            if (cell != null){
                if (cell.getCellType() == Cell.CELL_TYPE_NUMERIC){
                    val = cell.getNumericCellValue();
                }else if (cell.getCellType() == Cell.CELL_TYPE_STRING){
                    val = cell.getStringCellValue();
                }else if (cell.getCellType() == Cell.CELL_TYPE_FORMULA){
                    val = cell.getCellFormula();
                }else if (cell.getCellType() == Cell.CELL_TYPE_BOOLEAN){
                    val = cell.getBooleanCellValue();
                }else if (cell.getCellType() == Cell.CELL_TYPE_ERROR){
                    val = cell.getErrorCellValue();
                }
            }
        }catch (Exception e) {
            return val;
        }
        return val;
    }
     
    /**
     * 获取导入数据列表
     * @param cls 导入对象类型
     * @param groups 导入分组
     */
    public <E> List<E> getDataList(Class<E> cls, int... groups) throws InstantiationException, IllegalAccessException{
        List<Object[]> annotationList = Lists.newArrayList();
        // Get annotation field 
        Field[] fs = cls.getDeclaredFields();
        for (Field f : fs){
            ExcelField ef = f.getAnnotation(ExcelField.class);
            if (ef != null && (ef.type()==0 || ef.type()==2)){
                if (groups!=null && groups.length>0){
                    boolean inGroup = false;
                    for (int g : groups){
                        if (inGroup){
                            break;
                        }
                        for (int efg : ef.groups()){
                            if (g == efg){
                                inGroup = true;
                                annotationList.add(new Object[]{ef, f});
                                break;
                            }
                        }
                    }
                }else{
                    annotationList.add(new Object[]{ef, f});
                }
            }
        }
        // Get annotation method
        Method[] ms = cls.getDeclaredMethods();
        for (Method m : ms){
            ExcelField ef = m.getAnnotation(ExcelField.class);
            if (ef != null && (ef.type()==0 || ef.type()==2)){
                if (groups!=null && groups.length>0){
                    boolean inGroup = false;
                    for (int g : groups){
                        if (inGroup){
                            break;
                        }
                        for (int efg : ef.groups()){
                            if (g == efg){
                                inGroup = true;
                                annotationList.add(new Object[]{ef, m});
                                break;
                            }
                        }
                    }
                }else{
                    annotationList.add(new Object[]{ef, m});
                }
            }
        }
        // Field sorting
        Collections.sort(annotationList, new Comparator<Object[]>() {
            public int compare(Object[] o1, Object[] o2) {
                return new Integer(((ExcelField)o1[0]).sort()).compareTo(
                        new Integer(((ExcelField)o2[0]).sort()));
            };
        });
        //log.debug("Import column count:"+annotationList.size());
        // Get excel data
        List<E> dataList = Lists.newArrayList();
        for (int i = this.getDataRowNum(); i < this.getLastDataRowNum(); i++) {
            E e = (E)cls.newInstance();
            int column = 0;
            Row row = this.getRow(i);
            StringBuilder sb = new StringBuilder();
            for (Object[] os : annotationList){
                Object val = this.getCellValue(row, column++);
                if (val != null){
                    ExcelField ef = (ExcelField)os[0];
                    // If is dict type, get dict value
                    if (StringUtils.isNotBlank(ef.dictType())){
                        val = DictUtils.getDictValue(val.toString(), ef.dictType(), "");
                        //log.debug("Dictionary type value: ["+i+","+colunm+"] " + val);
                    }
                    // Get param type and type cast
                    Class<?> valType = Class.class;
                    if (os[1] instanceof Field){
                        valType = ((Field)os[1]).getType();
                    }else if (os[1] instanceof Method){
                        Method method = ((Method)os[1]);
                        if ("get".equals(method.getName().substring(0, 3))){
                            valType = method.getReturnType();
                        }else if("set".equals(method.getName().substring(0, 3))){
                            valType = ((Method)os[1]).getParameterTypes()[0];
                        }
                    }
                    //log.debug("Import value type: ["+i+","+column+"] " + valType);
                    try {
                        if (valType == String.class){
                            String s = String.valueOf(val.toString());
                            if(StringUtils.endsWith(s, ".0")){
                                val = StringUtils.substringBefore(s, ".0");
                            }else{
                                val = String.valueOf(val.toString());
                            }
                        }else if (valType == Integer.class){
                            val = Double.valueOf(val.toString()).intValue();
                        }else if (valType == Long.class){
                            val = Double.valueOf(val.toString()).longValue();
                        }else if (valType == Double.class){
                            val = Double.valueOf(val.toString());
                        }else if (valType == Float.class){
                            val = Float.valueOf(val.toString());
                        }else if (valType == Date.class){
                            val = DateUtil.getJavaDate((Double)val);
                        }else{
                            if (ef.fieldType() != Class.class){
                                val = ef.fieldType().getMethod("getValue", String.class).invoke(null, val.toString());
                            }else{
                                val = Class.forName(this.getClass().getName().replaceAll(this.getClass().getSimpleName(), 
                                        "fieldtype."+valType.getSimpleName()+"Type")).getMethod("getValue", String.class).invoke(null, val.toString());
                            }
                        }
                    } catch (Exception ex) {
                        log.info("Get cell value ["+i+","+column+"] error: " + ex.toString());
                        val = null;
                    }
                    // set entity value
                    if (os[1] instanceof Field){
                        Reflections.invokeSetter(e, ((Field)os[1]).getName(), val);
                    }else if (os[1] instanceof Method){
                        String mthodName = ((Method)os[1]).getName();
                        if ("get".equals(mthodName.substring(0, 3))){
                            mthodName = "set"+StringUtils.substringAfter(mthodName, "get");
                        }
                        Reflections.invokeMethod(e, mthodName, new Class[] {valType}, new Object[] {val});
                    }
                }
                sb.append(val+", ");
            }
            dataList.add(e);
            log.debug("Read success: ["+i+"] "+sb.toString());
        }
        return dataList;
    }
 
//  /**
//   * 导入测试
//   */
//  public static void main(String[] args) throws Throwable {
//      
//      ImportExcel ei = new ImportExcel("target/export.xlsx", 1);
//      
//      for (int i = ei.getDataRowNum(); i < ei.getLastDataRowNum(); i++) {
//          Row row = ei.getRow(i);
//          for (int j = 0; j < ei.getLastCellNum(); j++) {
//              Object val = ei.getCellValue(row, j);
//              System.out.print(val+", ");
//          }
//          System.out.print("\n");
//      }
//      
//  }
 
}
试试其它关键字
同语言下
可能有用的
贡献的其它代码Label