821 lines
28 KiB
Java
821 lines
28 KiB
Java
package com.muyu.resource.utils;
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import com.muyu.common.core.annotation.Excel;
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import com.muyu.common.core.annotation.Excel.ColumnType;
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import com.muyu.common.core.annotation.Excel.Type;
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import com.muyu.common.core.annotation.Excels;
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import com.muyu.common.core.exception.UtilException;
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import com.muyu.common.core.text.Convert;
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import com.muyu.common.core.utils.DateUtils;
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import com.muyu.common.core.utils.SpringUtils;
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import com.muyu.common.core.utils.StringUtils;
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import com.muyu.common.core.utils.file.FileTypeUtils;
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import com.muyu.common.core.utils.file.ImageUtils;
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import com.muyu.common.core.utils.reflect.ReflectUtils;
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import lombok.extern.log4j.Log4j2;
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import org.apache.commons.lang3.ArrayUtils;
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import org.apache.commons.lang3.RegExUtils;
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import org.apache.commons.lang3.reflect.FieldUtils;
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import org.apache.poi.hssf.usermodel.HSSFDateUtil;
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import org.apache.poi.ss.usermodel.*;
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import org.apache.poi.ss.util.CellRangeAddress;
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import org.apache.poi.ss.util.CellRangeAddressList;
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import org.apache.poi.util.IOUtils;
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import org.apache.poi.xssf.streaming.SXSSFWorkbook;
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import org.apache.poi.xssf.usermodel.XSSFClientAnchor;
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import org.apache.poi.xssf.usermodel.XSSFDataValidation;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import jakarta.servlet.http.HttpServletResponse;
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import java.io.*;
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import java.lang.reflect.Field;
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import java.lang.reflect.Method;
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import java.lang.reflect.ParameterizedType;
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import java.math.BigDecimal;
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import java.text.DecimalFormat;
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import java.time.LocalDate;
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import java.time.LocalDateTime;
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import java.util.*;
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import java.util.stream.Collectors;
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/**
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* Excel相关处理
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*
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* @author
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*/
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@Log4j2
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public class ExcelUtil<T>
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{
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/**
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* Excel sheet最大行数，默认65536
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*/
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public static final int sheetSize = 65536;
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/**
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* 工作表名称
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*/
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private String sheetName;
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/**
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* 导出类型（EXPORT:导出数据；IMPORT：导入模板）
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*/
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private Type type;
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/**
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* 工作薄对象
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*/
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private Workbook wb;
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/**
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* 工作表对象
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*/
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private Sheet sheet;
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/**
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* 样式列表
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*/
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private Map<String, CellStyle> styles;
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/**
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* 导入导出数据列表
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*/
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private List<T> list;
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/**
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* 注解列表
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*/
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private List<Object[]> fields;
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/**
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* 实体对象
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*/
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public Class<T> clazz;
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public ExcelUtil(Class<T> clazz) {
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this.clazz = clazz;
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}
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public ExcelUtil() {
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}
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public void init(List<T> list, String sheetName, Type type) {
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if (list == null) {
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list = new ArrayList<T>();
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}
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this.list = list;
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this.sheetName = sheetName;
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this.type = type;
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createExcelField();
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createWorkbook();
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}
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/**
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* 对excel表单默认第一个索引名转换成list
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*
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* @param is 输入流
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* @return 转换后集合
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*/
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public List<T> importExcel(InputStream is) throws Exception {
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return importExcel(StringUtils.EMPTY, is);
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}
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/**
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* 对excel表单指定表格索引名转换成list
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*
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* @param sheetName 表格索引名
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* @param is 输入流
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* @return 转换后集合
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*/
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public List<T> importExcel(String sheetName, InputStream is) throws Exception {
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this.type = Type.IMPORT;
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this.wb = WorkbookFactory.create(is);
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List<T> list = new ArrayList<T>();
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Sheet sheet = null;
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if (StringUtils.isNotEmpty(sheetName)) {
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// 如果指定sheet名,则取指定sheet中的内容.
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sheet = wb.getSheet(sheetName);
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} else {
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// 如果传入的sheet名不存在则默认指向第1个sheet.
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sheet = wb.getSheetAt(0);
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}
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if (sheet == null) {
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throw new IOException("文件sheet不存在");
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}
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int rows = sheet.getPhysicalNumberOfRows();
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if (rows > 0) {
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// 定义一个map用于存放excel列的序号和field.
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Map<String, Integer> cellMap = new HashMap<String, Integer>();
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// 获取表头
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Row heard = sheet.getRow(2);
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for (int i = 0; i < heard.getPhysicalNumberOfCells(); i++) {
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Cell cell = heard.getCell(i);
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if (cell != null) {
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String value = this.getCellValue(heard, i).toString();
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cellMap.put(value, i);
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}
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else {
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cellMap.put(null, i);
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}
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}
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// 有数据时才处理 得到类的所有field.
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Field[] allFields = clazz.getDeclaredFields();
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// 定义一个map用于存放列的序号和field.
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Map<Integer, Field> fieldsMap = new HashMap<Integer, Field>();
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for (int col = 0; col < allFields.length; col++) {
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Field field = allFields[col];
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Excel attr = field.getAnnotation(Excel.class);
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if (attr != null && (attr.type() == Type.ALL || attr.type() == type)) {
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// 设置类的私有字段属性可访问.
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field.setAccessible(true);
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Integer column = cellMap.get(attr.name());
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Integer column2 = cellMap.get("*"+attr.name());
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if(column == null && column2 == null){
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System.out.println("模板错误:Excel表头和项目里面设置的表头["+attr.name()+"]不一致,请检查!");
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return new ArrayList<>();
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}
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fieldsMap.put(column, field);
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}
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}
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for (int i = 3; i < rows; i++) {
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// 从第2行开始取数据,默认第一行是表头.
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Row row = sheet.getRow(i);
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T entity = null;
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for (Map.Entry<Integer, Field> entry : fieldsMap.entrySet()) {
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if (entry.getKey() == null){
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continue;
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}
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Object val = this.getCellValue(row, entry.getKey());
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if("aaaaa".equals(val)){
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System.out.println("ddd");
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}
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// 如果不存在实例则新建.
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entity = (entity == null ? clazz.newInstance() : entity);
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// 从map中得到对应列的field.
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Field field = fieldsMap.get(entry.getKey());
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// 取得类型,并根据对象类型设置值.
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Class<?> fieldType = field.getType();
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if (String.class == fieldType) {
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String s = Convert.toStr(val);
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if (StringUtils.endsWith(s, ".0")) {
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val = StringUtils.substringBefore(s, ".0");
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} else {
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String dateFormat = field.getAnnotation(Excel.class).dateFormat();
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if (StringUtils.isNotEmpty(dateFormat)) {
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val = DateUtils.parseDateToStr(dateFormat, (Date) val);
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} else {
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val = Convert.toStr(val);
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}
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}
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} else if ((Integer.TYPE == fieldType) || (Integer.class == fieldType)) {
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val = Convert.toInt(val);
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} else if ((Long.TYPE == fieldType) || (Long.class == fieldType)) {
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val = Convert.toLong(val);
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} else if ((Double.TYPE == fieldType) || (Double.class == fieldType)) {
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val = Convert.toDouble(val);
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} else if ((Float.TYPE == fieldType) || (Float.class == fieldType)) {
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val = Convert.toFloat(val);
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} else if (BigDecimal.class == fieldType) {
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val = Convert.toBigDecimal(val);
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} else if (Date.class == fieldType) {
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if (val instanceof String) {
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val = DateUtils.parseDate(val);
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} else if (val instanceof Double) {
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val = DateUtil.getJavaDate((Double) val);
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}
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}
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if(val == null){
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System.out.println("模板错误：第"+i+"行,第"+entry.getKey()+"列，Excel的数据格式和数据库格式不一致！");
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return new ArrayList<>();
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}
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if (fieldType != null) {
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Excel attr = field.getAnnotation(Excel.class);
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String propertyName = field.getName();
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if (StringUtils.isNotEmpty(attr.targetAttr())) {
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propertyName = field.getName() + "." + attr.targetAttr();
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} else if (StringUtils.isNotEmpty(attr.readConverterExp())) {
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val = reverseByExp(String.valueOf(val), attr.readConverterExp());
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}
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ReflectUtils.invokeSetter(entity, propertyName, val);
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}
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}
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list.add(entity);
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}
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}
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return list;
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}
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/**
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* 对list数据源将其里面的数据导入到excel表单
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*
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* @param response 返回数据
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* @param list 导出数据集合
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* @param sheetName 工作表的名称
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* @return 结果
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* @throws IOException
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*/
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public void exportExcel(HttpServletResponse response, List<T> list, String sheetName){
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response.setContentType("application/vnd.openxmlformats-officedocument.spreadsheetml.sheet");
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response.setCharacterEncoding("utf-8");
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this.init(list, sheetName, Type.EXPORT);
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writeSheet();
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exportExcel(response);
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}
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/**
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* 对list数据源将其里面的数据导入到excel表单
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*
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* @return 结果
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*/
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public void exportExcel(HttpServletResponse response){
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try{
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wb.write(response.getOutputStream());
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} catch (Exception e){
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log.error("导出Excel异常{}", e.getMessage());
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} finally {
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IOUtils.closeQuietly(wb);
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}
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}
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/**
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* 对list数据源将其里面的数据导入到excel表单
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*
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* @param list 导出数据集合
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* @param sheetName 工作表的名称
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* @return 结果
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*/
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public String exportExcel(List<T> list, String sheetName) {
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this.init(list, sheetName, Type.EXPORT);
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return exportExcel();
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}
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/**
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* 对list数据源将其里面的数据导入到excel表单
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*
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* @param sheetName 工作表的名称
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* @return 结果
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*/
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public String importTemplateExcel(String sheetName) {
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this.init(null, sheetName, Type.IMPORT);
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return exportExcel();
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}
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/**
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* 写入sheet数据
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*/
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public void writeSheet(){
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// 取出一共有多少个sheet.
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double sheetNo = Math.ceil(list.size() / sheetSize);
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for (int index = 0; index <= sheetNo; index++) {
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createSheet(sheetNo, index);
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// 产生一行
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Row row = sheet.createRow(0);
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int column = 0;
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// 写入各个字段的列头名称
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for (Object[] os : fields) {
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Excel excel = (Excel) os[1];
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this.createCell(excel, row, column++);
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}
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if (Type.EXPORT.equals(type)) {
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fillExcelData(index, row);
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}
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}
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}
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/**
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* 对list数据源将其里面的数据导入到excel表单
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*
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* @return 结果
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*/
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public String exportExcel() {
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OutputStream out = null;
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try {
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writeSheet();
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String filename = encodingFilename(sheetName);
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out = new FileOutputStream(getAbsoluteFile(filename));
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wb.write(out);
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return filename;
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} catch (Exception e) {
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log.error("导出Excel异常{}", e.getMessage());
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} finally {
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try {
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if (wb != null) {
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wb.close();
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}
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if (out != null) {
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out.close();
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}
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} catch (IOException e1) {
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e1.printStackTrace();
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}
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}
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return null;
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}
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/**
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* 填充excel数据
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*
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* @param index 序号
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* @param row 单元格行
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*/
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public void fillExcelData(int index, Row row) {
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int startNo = index * sheetSize;
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int endNo = Math.min(startNo + sheetSize, list.size());
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for (int i = startNo; i < endNo; i++) {
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row = sheet.createRow(i + 1 - startNo);
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// 得到导出对象.
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T vo = (T) list.get(i);
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int column = 0;
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for (Object[] os : fields) {
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Field field = (Field) os[0];
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Excel excel = (Excel) os[1];
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// 设置实体类私有属性可访问
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field.setAccessible(true);
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this.addCell(excel, row, vo, field, column++);
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}
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}
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}
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/**
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* 创建表格样式
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*
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* @param wb 工作薄对象
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* @return 样式列表
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*/
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private Map<String, CellStyle> createStyles(Workbook wb) {
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// 写入各条记录,每条记录对应excel表中的一行
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Map<String, CellStyle> styles = new HashMap<String, CellStyle>();
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CellStyle style = wb.createCellStyle();
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style.setAlignment(HorizontalAlignment.CENTER);
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style.setVerticalAlignment(VerticalAlignment.CENTER);
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style.setBorderRight(BorderStyle.THIN);
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style.setRightBorderColor(IndexedColors.GREY_50_PERCENT.getIndex());
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style.setBorderLeft(BorderStyle.THIN);
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style.setLeftBorderColor(IndexedColors.GREY_50_PERCENT.getIndex());
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style.setBorderTop(BorderStyle.THIN);
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style.setTopBorderColor(IndexedColors.GREY_50_PERCENT.getIndex());
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style.setBorderBottom(BorderStyle.THIN);
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style.setBottomBorderColor(IndexedColors.GREY_50_PERCENT.getIndex());
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Font dataFont = wb.createFont();
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dataFont.setFontName("Arial");
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dataFont.setFontHeightInPoints((short) 10);
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style.setFont(dataFont);
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styles.put("data", style);
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style = wb.createCellStyle();
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style.cloneStyleFrom(styles.get("data"));
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style.setAlignment(HorizontalAlignment.CENTER);
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style.setVerticalAlignment(VerticalAlignment.CENTER);
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style.setFillForegroundColor(IndexedColors.GREY_50_PERCENT.getIndex());
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style.setFillPattern(FillPatternType.SOLID_FOREGROUND);
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Font headerFont = wb.createFont();
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headerFont.setFontName("Arial");
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headerFont.setFontHeightInPoints((short) 10);
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headerFont.setBold(true);
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headerFont.setColor(IndexedColors.WHITE.getIndex());
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style.setFont(headerFont);
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styles.put("header", style);
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return styles;
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}
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/**
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* 创建单元格
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*/
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public Cell createCell(Excel attr, Row row, int column) {
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// 创建列
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Cell cell = row.createCell(column);
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// 写入列信息
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cell.setCellValue(attr.name());
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setDataValidation(attr, row, column);
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cell.setCellStyle(styles.get("header"));
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return cell;
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}
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/**
|
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* 设置单元格信息
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*
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* @param value 单元格值
|
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* @param attr 注解相关
|
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* @param cell 单元格信息
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*/
|
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public void setCellVo(Object value, Excel attr, Cell cell) {
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if (Excel.ColumnType.STRING == attr.cellType()) {
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cell.setCellType(CellType.NUMERIC);
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cell.setCellValue(value == null ? attr.defaultValue() : value + attr.suffix());
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} else if (Excel.ColumnType.NUMERIC == attr.cellType()) {
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cell.setCellType(CellType.NUMERIC);
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cell.setCellValue(Integer.parseInt(value + ""));
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}
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}
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/**
|
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* 创建表格样式
|
||
*/
|
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public void setDataValidation(Excel attr, Row row, int column) {
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if (attr.name().indexOf("注：") >= 0) {
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sheet.setColumnWidth(column, 6000);
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} else {
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// 设置列宽
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sheet.setColumnWidth(column, (int) ((attr.width() + 0.72) * 256));
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row.setHeight((short) (attr.height() * 20));
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}
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// 如果设置了提示信息则鼠标放上去提示.
|
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if (StringUtils.isNotEmpty(attr.prompt())) {
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// 这里默认设了2-101列提示.
|
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setXSSFPrompt(sheet, "", attr.prompt(), 1, 100, column, column);
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}
|
||
// 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(Excel 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);
|
||
//时间类型格式化
|
||
String dateFormat = attr.dateFormat();
|
||
//读取表达式
|
||
String readConverterExp = attr.readConverterExp();
|
||
//分隔符
|
||
String splitStr = attr.separator();
|
||
//反射对象
|
||
Class<?> invokeClass = attr.invokeClass();
|
||
//反射方法名称
|
||
String invokeMethod = attr.invokeMethod();
|
||
if (StringUtils.isNotEmpty(dateFormat) && value != null) {
|
||
cell.setCellValue(DateUtils.parseDateToStr(dateFormat, (Date) value));
|
||
} else if (StringUtils.isNotEmpty(readConverterExp) && value != null) {
|
||
// 判断是否有分隔符
|
||
if (StringUtils.isNotEmpty(splitStr)){
|
||
StringBuilder cellValue = new StringBuilder();
|
||
String valueStr = String.valueOf(value);
|
||
String[] valueStrSplit = valueStr.split(splitStr);
|
||
int valueStrSplitLength = valueStrSplit.length;
|
||
for (int i = 0; ; i++) {
|
||
cellValue.append(convertByExp(valueStrSplit[i], readConverterExp));
|
||
if (i == valueStrSplitLength-1){
|
||
break;
|
||
}
|
||
cellValue.append(",");
|
||
}
|
||
cell.setCellValue(cellValue.toString());
|
||
} else {
|
||
cell.setCellValue(convertByExp(String.valueOf(value), readConverterExp));
|
||
}
|
||
|
||
}
|
||
// 判断是否需要取值
|
||
else if((!invokeClass.getName().equals(String.class.getName())) && StringUtils.isNotEmpty(invokeMethod)){
|
||
Object bean = SpringUtils.getBean(invokeClass);
|
||
Method thisMethod = null;
|
||
Method[] methods = invokeClass.getMethods();
|
||
for (Method method : methods) {
|
||
if (method.getName().equals(invokeMethod)){
|
||
thisMethod = method;
|
||
continue;
|
||
}
|
||
}
|
||
cell.setCellValue(thisMethod.invoke(bean,value).toString());
|
||
} 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 = System.getProperty("user.dir") + File.separator + 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, Excel 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("[.]");
|
||
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<>();
|
||
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(Excel.class)) {
|
||
putToField(field, field.getAnnotation(Excel.class));
|
||
}
|
||
|
||
// 多注解
|
||
if (field.isAnnotationPresent(Excels.class)) {
|
||
Excels attrs = field.getAnnotation(Excels.class);
|
||
Excel[] excels = attrs.value();
|
||
for (Excel excel : excels) {
|
||
putToField(field, excel);
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
/**
|
||
* 放到字段集合中
|
||
*/
|
||
private void putToField(Field field, Excel attr) {
|
||
if (attr != null && (attr.type() == Type.ALL || attr.type() == type)) {
|
||
this.fields.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 (cell != null) {
|
||
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;
|
||
}
|
||
}
|