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@ -9,15 +9,10 @@ import java.lang.reflect.Field;
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import java.lang.reflect.Method;
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import java.math.BigDecimal;
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import java.text.DecimalFormat;
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import java.util.ArrayList;
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import java.util.Arrays;
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import java.util.Comparator;
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import java.util.Date;
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import java.util.HashMap;
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import java.util.List;
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import java.util.Map;
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import java.util.UUID;
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import java.util.*;
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import java.util.stream.Collectors;
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import com.alibaba.excel.EasyExcel;
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import org.apache.poi.hssf.usermodel.HSSFDateUtil;
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import org.apache.poi.ss.usermodel.BorderStyle;
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import org.apache.poi.ss.usermodel.Cell;
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@ -38,7 +33,7 @@ import org.apache.poi.ss.usermodel.Workbook;
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import org.apache.poi.ss.usermodel.WorkbookFactory;
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import org.apache.poi.ss.util.CellRangeAddressList;
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import org.apache.poi.xssf.streaming.SXSSFWorkbook;
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import org.apache.poi.xssf.usermodel.XSSFDataValidation;
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import org.apache.poi.xssf.usermodel.*;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import com.ruoyi.common.annotation.Excel;
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@ -59,8 +54,89 @@ import com.ruoyi.common.utils.spring.SpringUtils;
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*
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* @author ruoyi
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*/
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public class ExcelUtil<T>
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{
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/**
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* src:定义下载的文件路径
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*
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* @param mapArrayList
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* @param src
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*/
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public static boolean createExcel(List<Map<String, Object>> mapArrayList, String src) {
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System.out.println("数据转成Excel...");
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//获取数据源的 key, 用于获取列数及设置标题
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Map<String, Object> map = mapArrayList.get(0);
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Set<String> stringSet = map.keySet();
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ArrayList<String> headList = new ArrayList<>(stringSet);
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// 定义一个新的工作簿
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XSSFWorkbook wb = new XSSFWorkbook();
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// 创建一个Sheet页
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XSSFSheet sheet = wb.createSheet("First sheet");
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//设置行高
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sheet.setDefaultRowHeight((short) (2 * 256));
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//设置列宽
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sheet.setColumnWidth(0, 4000);
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sheet.setColumnWidth(1, 4000);
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sheet.setColumnWidth(2, 4000);
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XSSFFont font = wb.createFont();
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font.setFontName("宋体");
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font.setFontHeightInPoints((short) 16);
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//获得表格第一行
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XSSFRow row = sheet.createRow(0);
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//chen 优化标题获取 根据数据源信息给第一行每一列设置标题
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for (int i = 0; i < headList.size(); i++) {
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XSSFCell cell = row.createCell(i);
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cell.setCellValue(headList.get(i));
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}
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XSSFRow rows;
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XSSFCell cells;
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//循环拿到的数据给所有行每一列设置对应的值
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for (int i = 0; i < mapArrayList.size(); i++) {
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// 在这个sheet页里创建一行
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rows = sheet.createRow(i + 1);
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//chen 优化值获取 给该行数据赋值
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for (int j = 0; j < headList.size(); j++) {
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String value;
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if (mapArrayList.get(i).get(headList.get(j)) != null) {
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value = mapArrayList.get(i).get(headList.get(j)).toString();
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} else {
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value = "";
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}
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cells = rows.createCell(j);
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cells.setCellValue(value);
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}
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}
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try {
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String FileName = UUID.randomUUID().toString() + "_" + src + ".xlsx";
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String downloadPath = Global.getDownloadPath() + FileName;
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File desc = new File(downloadPath);
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if (!desc.getParentFile().exists())
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{
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desc.getParentFile().mkdirs();
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}
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//File file = new File(src);
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FileOutputStream fileOutputStream = new FileOutputStream(desc);
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wb.write(fileOutputStream);
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wb.close();
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fileOutputStream.close();
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return true;
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// AjaxResult ajax = AjaxResult.success();
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// return ajax;
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} catch (IOException e) {
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e.printStackTrace();
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//return AjaxResult.error(e.getMessage());
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return false;
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}
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}
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private static final Logger log = LoggerFactory.getLogger(ExcelUtil.class);
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/**
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CaesarBao
12 months ago