文件导入导出必须代码
ExportExcel.java
/** * Copyright © 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 © 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"); } }新闻热点
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