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/**
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* Copyright © 2015-2020 <a href="http://www.jeeplus.org/">JeePlus</a> All rights reserved.
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*/
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package com.ruoyi.common.utils.excel;
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import com.ruoyi.common.annotation.ExcelField;
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import org.apache.commons.compress.utils.Lists;
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import org.apache.commons.lang3.StringUtils;
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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.xssf.streaming.SXSSFWorkbook;
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import org.apache.poi.xssf.usermodel.XSSFClientAnchor;
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import org.apache.poi.xssf.usermodel.XSSFRichTextString;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import javax.servlet.http.HttpServletResponse;
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import java.io.IOException;
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import java.io.OutputStream;
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import java.lang.reflect.Field;
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import java.lang.reflect.Method;
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import java.net.URLEncoder;
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import java.util.*;
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/**
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* 导出Excel文件（导出“XLSX”格式，支持大数据量导出 @see org.apache.poi.ss.SpreadsheetVersion）
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* @author jeeplus
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* @version 2016-04-21
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*/
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public class ExportExcel {
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private static Logger log = LoggerFactory.getLogger(ExportExcel.class);
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/**
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* 工作薄对象
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*/
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private SXSSFWorkbook 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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* 当前行号
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*/
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private int rownum;
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/**
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* 注解列表（Object[]{ ExcelField, Field/Method }）
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*/
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List<Object[]> annotationList = Lists.newArrayList();
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/**
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* 构造函数
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* @param title 表格标题，传“空值”，表示无标题
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* @param cls 实体对象，通过annotation.ExportField获取标题
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*/
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public ExportExcel(String title, Class<?> cls){
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this(title, cls, 1);
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}
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/**
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* 构造函数
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* @param title 表格标题，传“空值”，表示无标题
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* @param cls 实体对象，通过annotation.ExportField获取标题
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* @param type 导出类型（1:导出数据；2：导出模板）
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* @param groups 导入分组
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*/
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public ExportExcel(String title, Class<?> cls, int type, int... groups){
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// Get annotation field
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Field[] fs = cls.getDeclaredFields();
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for (Field f : fs){
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ExcelField ef = f.getAnnotation(ExcelField.class);
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if (ef != null && (ef.type()==0 || ef.type()==type)){
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if (groups!=null && groups.length>0){
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boolean inGroup = false;
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for (int g : groups){
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if (inGroup){
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break;
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}
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for (int efg : ef.groups()){
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if (g == efg){
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inGroup = true;
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annotationList.add(new Object[]{ef, f});
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break;
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}
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}
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}
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}else{
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annotationList.add(new Object[]{ef, f});
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}
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}
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}
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// Get annotation method
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Method[] ms = cls.getDeclaredMethods();
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for (Method m : ms){
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ExcelField ef = m.getAnnotation(ExcelField.class);
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if (ef != null && (ef.type()==0 || ef.type()==type)){
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if (groups!=null && groups.length>0){
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boolean inGroup = false;
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for (int g : groups){
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if (inGroup){
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break;
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}
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for (int efg : ef.groups()){
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if (g == efg){
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inGroup = true;
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annotationList.add(new Object[]{ef, m});
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break;
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}
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}
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}
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}else{
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annotationList.add(new Object[]{ef, m});
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}
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}
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}
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// Field sorting
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Collections.sort(annotationList, new Comparator<Object[]>() {
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@Override
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public int compare(Object[] o1, Object[] o2) {
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return new Integer(((ExcelField)o1[0]).sort()).compareTo(
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new Integer(((ExcelField)o2[0]).sort()));
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}
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});
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// Initialize
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List<String> headerList = Lists.newArrayList();
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for (Object[] os : annotationList){
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String t = ((ExcelField)os[0]).title();
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// 如果是导出，则去掉注释
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if (type==1){
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String[] ss = StringUtils.split(t, "**", 2);
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if (ss.length==2){
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t = ss[0];
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}
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}
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headerList.add(t);
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}
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initialize(title, headerList);
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}
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/**
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* 初始化函数
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* @param title 表格标题，传“空值”，表示无标题
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* @param headerList 表头列表
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*/
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private void initialize(String title, List<String> headerList) {
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this.wb = new SXSSFWorkbook(500);
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this.sheet = wb.createSheet("Export");
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this.styles = createStyles(wb);
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// Create title
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if (StringUtils.isNotBlank(title)){
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Row titleRow = sheet.createRow(rownum++);
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titleRow.setHeightInPoints(30);
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Cell titleCell = titleRow.createCell(0);
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titleCell.setCellStyle(styles.get("title"));
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titleCell.setCellValue(title);
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sheet.addMergedRegion(new CellRangeAddress(titleRow.getRowNum(),
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titleRow.getRowNum(), titleRow.getRowNum(), headerList.size()-1));
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}
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// Create header
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if (headerList == null){
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throw new RuntimeException("headerList not null!");
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}
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Row headerRow = sheet.createRow(rownum++);
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headerRow.setHeightInPoints(16);
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for (int i = 0; i < headerList.size(); i++) {
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Cell cell = headerRow.createCell(i);
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cell.setCellStyle(styles.get("header"));
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String[] ss = StringUtils.split(headerList.get(i), "**", 2);
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if (ss.length==2){
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cell.setCellValue(ss[0]);
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Comment comment = this.sheet.createDrawingPatriarch().createCellComment(
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new XSSFClientAnchor(0, 0, 0, 0, (short) 3, 3, (short) 5, 6));
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comment.setString(new XSSFRichTextString(ss[1]));
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cell.setCellComment(comment);
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}else{
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cell.setCellValue(headerList.get(i));
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}
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sheet.autoSizeColumn(i);
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}
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for (int i = 0; i < headerList.size(); i++) {
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int colWidth = sheet.getColumnWidth(i)*2;
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sheet.setColumnWidth(i, colWidth < 3000 ? 3000 : colWidth);
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}
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log.debug("Initialize success.");
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}
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/**
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* 创建表格样式
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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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Map<String, CellStyle> styles = new HashMap<>(16);
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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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Font titleFont = wb.createFont();
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titleFont.setFontName("Arial");
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titleFont.setFontHeightInPoints((short) 16);
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titleFont.setBold(true);
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style.setFont(titleFont);
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styles.put("title", style);
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style = wb.createCellStyle();
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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.LEFT);
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styles.put("data1", 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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styles.put("data2", style);
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|
|
style = wb.createCellStyle();
|
|
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|
|
|
|
|
style.cloneStyleFrom(styles.get("data"));
|
|
|
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|
style.setAlignment(HorizontalAlignment.RIGHT);
|
|
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|
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|
|
styles.put("data3", style);
|
|
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|
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|
style = wb.createCellStyle();
|
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|
|
style.cloneStyleFrom(styles.get("data"));
|
|
|
|
|
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|
|
// style.setWrapText(true);
|
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|
|
style.setAlignment(HorizontalAlignment.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");
|
|
|
|
|
|
|
|
headerFont.setFontHeightInPoints((short) 10);
|
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|
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headerFont.setBold(true);
|
|
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|
|
headerFont.setColor(IndexedColors.WHITE.getIndex());
|
|
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|
|
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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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|
|
|
|
|
|
|
|
|
|
|
|
/**
|
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|
|
|
|
* 添加一行
|
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|
* @return 行对象
|
|
|
|
|
|
|
|
*/
|
|
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|
|
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|
|
public Row addRow(){
|
|
|
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|
|
|
|
return sheet.createRow(rownum++);
|
|
|
|
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|
|
|
}
|
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|
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|
|
|
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|
|
/**
|
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|
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|
|
|
|
* 添加一个单元格
|
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|
|
|
|
* @param row 添加的行
|
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|
|
|
|
* @param column 添加列号
|
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|
|
* @param val 添加值
|
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|
|
* @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((Double) 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((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();
|
|
|
|
|
|
|
|
for (Object[] os : annotationList){
|
|
|
|
|
|
|
|
ExcelField ef = (ExcelField)os[0];
|
|
|
|
|
|
|
|
Object val = null;
|
|
|
|
|
|
|
|
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[] {});
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
}catch(Exception ex) {
|
|
|
|
|
|
|
|
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.setHeader("Access-Control-Allow-Origin", "*");
|
|
|
|
|
|
|
|
response.setContentType("application/octet-stream; charset=utf-8");
|
|
|
|
|
|
|
|
response.addHeader("Content-Disposition", "attachment; filename="+ URLEncoder.encode(fileName, "utf-8"));
|
|
|
|
|
|
|
|
write(response.getOutputStream());
|
|
|
|
|
|
|
|
return this;
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
|
|
|
* 清理临时文件
|
|
|
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
public ExportExcel dispose(){
|
|
|
|
|
|
|
|
wb.dispose();
|
|
|
|
|
|
|
|
return this;
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
}
|
wangxy
9 months ago