java导出excel工具类

package com.wendu.cis.order.util.export;


import com.alibaba.fastjson.JSONArray;
import com.alibaba.fastjson.JSONObject;
import com.wendu.cis.order.common.Constant;
import org.apache.poi.hpsf.SummaryInformation;
import org.apache.poi.hssf.usermodel.*;
import org.apache.poi.ss.usermodel.*;
import org.apache.poi.ss.util.CellRangeAddress;
import org.apache.poi.xssf.streaming.SXSSFWorkbook;
import sun.misc.BASE64Encoder;

import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletResponse;
import java.io.*;
import java.math.BigDecimal;
import java.net.URLEncoder;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Iterator;
import java.util.Map;

/**
 * poi导出
 *
 * @author thresh
 * @create 2018-05-24 13:43
 **/
public class ExcelUtil {
    public static String NO_DEFINE = "no_define";//未定义的字段
    public static String DEFAULT_DATE_PATTERN="yyyy年MM月dd日";//默认日期格式
    public static int DEFAULT_COLOUMN_WIDTH = 17;
    /**
     * 导出Excel 97(.xls)格式 ，少量数据
     * @param title 标题行
     * @param headMap 属性-列名
     * @param jsonArray 数据集
     * @param datePattern 日期格式，null则用默认日期格式
     * @param colWidth 列宽 默认 至少17个字节
     * @param out 输出流
     */
    public static void exportExcel(String title,Map headMap,JSONArray jsonArray,String datePattern,int colWidth, OutputStream out) {
        if(datePattern==null) datePattern = DEFAULT_DATE_PATTERN;
        // 声明一个工作薄
        HSSFWorkbook workbook = new HSSFWorkbook();
        workbook.createInformationProperties();
        workbook.getDocumentSummaryInformation().setCompany("*****公司");
        SummaryInformation si = workbook.getSummaryInformation();
        si.setAuthor("JACK");  //填加xls文件作者信息
        si.setApplicationName("导出程序"); //填加xls文件创建程序信息
        si.setLastAuthor("最后保存者信息"); //填加xls文件最后保存者信息
        si.setComments("JACK is a programmer!"); //填加xls文件作者信息
        si.setTitle("POI导出Excel"); //填加xls文件标题信息
        si.setSubject("POI导出Excel");//填加文件主题信息
        si.setCreateDateTime(new Date());
        //表头样式
        HSSFCellStyle titleStyle = workbook.createCellStyle();
        titleStyle.setAlignment(HSSFCellStyle.ALIGN_CENTER);
        HSSFFont titleFont = workbook.createFont();
        titleFont.setFontHeightInPoints((short) 20);
        titleFont.setBoldweight((short) 700);
        titleStyle.setFont(titleFont);
        // 列头样式
        HSSFCellStyle headerStyle = workbook.createCellStyle();
        headerStyle.setFillPattern(HSSFCellStyle.SOLID_FOREGROUND);
        headerStyle.setBorderBottom(HSSFCellStyle.BORDER_THIN);
        headerStyle.setBorderLeft(HSSFCellStyle.BORDER_THIN);
        headerStyle.setBorderRight(HSSFCellStyle.BORDER_THIN);
        headerStyle.setBorderTop(HSSFCellStyle.BORDER_THIN);
        headerStyle.setAlignment(HSSFCellStyle.ALIGN_CENTER);
        HSSFFont headerFont = workbook.createFont();
        headerFont.setFontHeightInPoints((short) 12);
        headerFont.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD);
        headerStyle.setFont(headerFont);
        // 单元格样式
        HSSFCellStyle cellStyle = workbook.createCellStyle();
        cellStyle.setFillPattern(HSSFCellStyle.SOLID_FOREGROUND);
        cellStyle.setBorderBottom(HSSFCellStyle.BORDER_THIN);
        cellStyle.setBorderLeft(HSSFCellStyle.BORDER_THIN);
        cellStyle.setBorderRight(HSSFCellStyle.BORDER_THIN);
        cellStyle.setBorderTop(HSSFCellStyle.BORDER_THIN);
        cellStyle.setAlignment(HSSFCellStyle.ALIGN_CENTER);
        cellStyle.setVerticalAlignment(HSSFCellStyle.VERTICAL_CENTER);
        HSSFFont cellFont = workbook.createFont();
        cellFont.setBoldweight(HSSFFont.BOLDWEIGHT_NORMAL);
        cellStyle.setFont(cellFont);
        // 生成一个(带标题)表格
        HSSFSheet sheet = workbook.createSheet();
        // 声明一个画图的顶级管理器
        HSSFPatriarch patriarch = sheet.createDrawingPatriarch();
        // 定义注释的大小和位置,详见文档
        HSSFComment comment = patriarch.createComment(new HSSFClientAnchor(0,
                0, 0, 0, (short) 4, 2, (short) 6, 5));
        // 设置注释内容
        comment.setString(new HSSFRichTextString("可以在POI中添加注释！"));
        // 设置注释作者，当鼠标移动到单元格上是可以在状态栏中看到该内容.
        comment.setAuthor("JACK");
        //设置列宽
        int minBytes = colWidth iter = headMap.keySet().iterator(); iter
                .hasNext();) {
            String fieldName = iter.next();

            properties[ii] = fieldName;
            headers[ii] = fieldName;

            int bytes = fieldName.getBytes().length;
            arrColWidth[ii] =  bytes < minBytes ? minBytes : bytes;
            sheet.setColumnWidth(ii,arrColWidth[ii]*256);
            ii++;
        }
        // 遍历集合数据，产生数据行
        int rowIndex = 0;
        for (Object obj : jsonArray) {
            if(rowIndex == 65535 || rowIndex == 0){
                if ( rowIndex != 0 ) sheet = workbook.createSheet();//如果数据超过了，则在第二页显示

                HSSFRow titleRow = sheet.createRow(0);//表头 rowIndex=0
                titleRow.createCell(0).setCellValue(title);
                titleRow.getCell(0).setCellStyle(titleStyle);
                sheet.addMergedRegion(new CellRangeAddress(0, 0, 0, headMap.size() - 1));

                HSSFRow headerRow = sheet.createRow(1); //列头 rowIndex =1
                for(int i=0;i headMap,JSONArray jsonArray,String datePattern,int colWidth, OutputStream out) {
        if(datePattern==null) datePattern = DEFAULT_DATE_PATTERN;
        // 声明一个工作薄
        SXSSFWorkbook workbook = new SXSSFWorkbook(1000);//缓存
        workbook.setCompressTempFiles(true);
        //表头样式
        CellStyle titleStyle = workbook.createCellStyle();
        titleStyle.setAlignment(HSSFCellStyle.ALIGN_CENTER);
        Font titleFont = workbook.createFont();
        titleFont.setFontHeightInPoints((short) 20);
        titleFont.setBoldweight((short) 700);
        titleStyle.setFont(titleFont);
        // 列头样式
        CellStyle headerStyle = workbook.createCellStyle();
        //headerStyle.setFillPattern(HSSFCellStyle.SOLID_FOREGROUND);
        headerStyle.setBorderBottom(HSSFCellStyle.BORDER_THIN);
        headerStyle.setBorderLeft(HSSFCellStyle.BORDER_THIN);
        headerStyle.setBorderRight(HSSFCellStyle.BORDER_THIN);
        headerStyle.setBorderTop(HSSFCellStyle.BORDER_THIN);
        headerStyle.setAlignment(HSSFCellStyle.ALIGN_CENTER);
        Font headerFont = workbook.createFont();
        headerFont.setFontHeightInPoints((short) 12);
        headerFont.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD);
        headerStyle.setFont(headerFont);
        // 单元格样式
        CellStyle cellStyle = workbook.createCellStyle();
        //cellStyle.setFillPattern(HSSFCellStyle.SOLID_FOREGROUND);
        cellStyle.setBorderBottom(HSSFCellStyle.BORDER_THIN);
        cellStyle.setBorderLeft(HSSFCellStyle.BORDER_THIN);
        cellStyle.setBorderRight(HSSFCellStyle.BORDER_THIN);
        cellStyle.setBorderTop(HSSFCellStyle.BORDER_THIN);
        cellStyle.setAlignment(HSSFCellStyle.ALIGN_CENTER);
        cellStyle.setVerticalAlignment(HSSFCellStyle.VERTICAL_CENTER);
        Font cellFont = workbook.createFont();
        cellFont.setBoldweight(HSSFFont.BOLDWEIGHT_NORMAL);
        cellStyle.setFont(cellFont);
        // 生成一个(带标题)表格
      Sheet sheet = workbook.createSheet();
        //设置列宽
        int minBytes = colWidth iter = headMap.keySet().iterator(); iter
                .hasNext();) {
            String fieldName = iter.next();

            properties[ii] = fieldName;
            headers[ii] = headMap.get(fieldName);

            int bytes = fieldName.getBytes().length;
            arrColWidth[ii] =  bytes < minBytes ? minBytes : bytes;
            sheet.setColumnWidth(ii,arrColWidth[ii]*256);
            ii++;
        }
        // 遍历集合数据，产生数据行
        int rowIndex = 0;
            // 不分sheet页
            if(rowIndex == 0){
                //if ( rowIndex != 0 ) sheet = workbook.createSheet();//如果数据超过了，则在第二页显示

                //Row titleRow = sheet.createRow(0);//表头 rowIndex=0
                //titleRow.createCell(0).setCellValue(title);
                //titleRow.getCell(0).setCellStyle(titleStyle);
                //sheet.addMergedRegion(new CellRangeAddress(0, 0, 0, headMap.size() - 1));

                Row headerRow = sheet.createRow(0); //列头 rowIndex =1
                for(int i=0;i headMap,JSONArray jsonArray,String datePattern,int colWidth, OutputStream out, BigDecimal totalAmount) {
        if(datePattern==null) datePattern = DEFAULT_DATE_PATTERN;
        // 声明一个工作薄
        SXSSFWorkbook workbook = new SXSSFWorkbook(1000);//缓存
        workbook.setCompressTempFiles(true);
        //表头样式
        CellStyle titleStyle = workbook.createCellStyle();
        titleStyle.setAlignment(HSSFCellStyle.ALIGN_CENTER);
        Font titleFont = workbook.createFont();
        titleFont.setFontHeightInPoints((short) 20);
        titleFont.setBoldweight((short) 700);
        titleStyle.setFont(titleFont);
        // 列头样式
        CellStyle headerStyle = workbook.createCellStyle();
        //headerStyle.setFillPattern(HSSFCellStyle.SOLID_FOREGROUND);
        headerStyle.setBorderBottom(HSSFCellStyle.BORDER_THIN);
        headerStyle.setBorderLeft(HSSFCellStyle.BORDER_THIN);
        headerStyle.setBorderRight(HSSFCellStyle.BORDER_THIN);
        headerStyle.setBorderTop(HSSFCellStyle.BORDER_THIN);
        headerStyle.setAlignment(HSSFCellStyle.ALIGN_CENTER);
        Font headerFont = workbook.createFont();
        headerFont.setFontHeightInPoints((short) 12);
        headerFont.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD);
        headerStyle.setFont(headerFont);
        // 单元格样式
        CellStyle cellStyle = workbook.createCellStyle();
        //cellStyle.setFillPattern(HSSFCellStyle.SOLID_FOREGROUND);
        cellStyle.setBorderBottom(HSSFCellStyle.BORDER_THIN);
        cellStyle.setBorderLeft(HSSFCellStyle.BORDER_THIN);
        cellStyle.setBorderRight(HSSFCellStyle.BORDER_THIN);
        cellStyle.setBorderTop(HSSFCellStyle.BORDER_THIN);
        cellStyle.setAlignment(HSSFCellStyle.ALIGN_CENTER);
        cellStyle.setVerticalAlignment(HSSFCellStyle.VERTICAL_CENTER);
        Font cellFont = workbook.createFont();
        cellFont.setBoldweight(HSSFFont.BOLDWEIGHT_NORMAL);
        cellStyle.setFont(cellFont);
        // 生成一个(带标题)表格
        Sheet sheet = workbook.createSheet();
        //设置列宽
        int minBytes = colWidth iter = headMap.keySet().iterator(); iter
                .hasNext();) {
            String fieldName = iter.next();

            properties[ii] = fieldName;
            headers[ii] = headMap.get(fieldName);

            int bytes = fieldName.getBytes().length;
            arrColWidth[ii] =  bytes < minBytes ? minBytes : bytes;
            sheet.setColumnWidth(ii,arrColWidth[ii]*256);
            ii++;
        }
        // 遍历集合数据，产生数据行
        int rowIndex = 0;
        // 不分sheet页
        if(rowIndex == 0){
            //if ( rowIndex != 0 ) sheet = workbook.createSheet();//如果数据超过了，则在第二页显示

            //Row titleRow = sheet.createRow(0);//表头 rowIndex=0
            //titleRow.createCell(0).setCellValue(title);
            //titleRow.getCell(0).setCellStyle(titleStyle);
            //sheet.addMergedRegion(new CellRangeAddress(0, 0, 0, headMap.size() - 1));

            Row headerRow = sheet.createRow(0); //列头 rowIndex =1
            for(int i=0;i headMap,JSONArray ja,HttpServletResponse response){
        try {
            ByteArrayOutputStream os = new ByteArrayOutputStream();
            ExcelUtil.exportExcelX(title,headMap,ja,null,0,os);
            // 设置response参数，可以打开下载页面
            response.reset();
            response.setContentType("application/vnd.openxmlformats-officedocument.spreadsheetml.sheet;charset=utf-8");
            response.setHeader("Content-Disposition", "attachment;filename="+ new String(("订单导出" + ".xlsx").getBytes("utf-8"), "iso-8859-1"));
            //response.setContentLength(content.length);
            byte[] content = os.toByteArray();
            InputStream is = new ByteArrayInputStream(content);
            ServletOutputStream outputStream = response.getOutputStream();
            BufferedInputStream bis = new BufferedInputStream(is);
            BufferedOutputStream bos = new BufferedOutputStream(outputStream);
            byte[] buff = new byte[2048];
            int bytesRead;
            while (-1 != (bytesRead = bis.read(buff, 0, buff.length))) {
                bos.write(buff, 0, bytesRead);
            }
            bis.close();
            bos.close();
            outputStream.flush();
            outputStream.close();
        }catch (Exception e) {
            e.printStackTrace();
        }
    }

    public static void ssf(ByteArrayOutputStream os) throws Exception{
        SXSSFWorkbook wb = new SXSSFWorkbook();
        Sheet sheet = wb.createSheet();  //创建table工作薄
        Object[][] datas = {
    {"区域", "总销售额(万元)", "总利润(万元)简单的表格"}, {"江苏省" , 9045,  2256}, {"广东省", 3000, 690}};
        Row row;
        Cell cell;
        for(int i = 0; i < datas.length; i++) {
            row = sheet.createRow(i);//创建表格行
            for(int j = 0; j < datas[i].length; j++) {
                cell = row.createCell(j);//根据表格行创建单元格
                cell.setCellValue(String.valueOf(datas[i][j]));
            }
        }
        wb.write(os);
    }
}