221 lines
8.5 KiB
Plaintext
221 lines
8.5 KiB
Plaintext
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package com.bonus.index.controller;
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import java.io.IOException;
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import java.io.OutputStream;
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import java.io.UnsupportedEncodingException;
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import java.net.URLEncoder;
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import java.util.ArrayList;
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import java.util.List;
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import java.util.Map;
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import javax.servlet.http.HttpServletRequest;
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import javax.servlet.http.HttpServletResponse;
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import javax.servlet.http.HttpSession;
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import org.apache.poi.hssf.usermodel.*;
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import org.apache.poi.ss.usermodel.BorderStyle;
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import org.apache.poi.ss.usermodel.HorizontalAlignment;
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import org.apache.poi.ss.usermodel.VerticalAlignment;
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/**
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* 导出表格工具类
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*
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* @author lvjilong
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*/
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public class ExcelUtils {
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//excel默认宽度；
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private static int width = 256 * 14;
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//默认字体
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private static String excelfont = "微软雅黑";
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/**
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* @param excelName 导出的EXCEL名字
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* @param sheetName 导出的SHEET名字 当前sheet数目只为1
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* @param headers 导出的表格的表头
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* @param ds_titles 导出的数据 map.get(key) 对应的 key
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* @param ds_format 导出数据的样式
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* 1:String left;
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* 2:String center
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* 3:String right
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* 4 int right
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* 5:float ###,###.## right
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* 6:number: #.00% 百分比 right
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* @param widths 表格的列宽度 默认为 256*14
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* @param data 数据集 List<Map>
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* @param response
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* @throws IOException
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*/
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public static void export(String excelName, String sheetName, String[] headers, String[] ds_titles, int[] ds_format, int[] widths, List<Map<String, Object>> data, HttpServletRequest request, HttpServletResponse response) throws IOException {
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HttpSession session = request.getSession();
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session.setAttribute("state", null);
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if (widths == null) {
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widths = new int[ds_titles.length];
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for (int i = 0; i < ds_titles.length; i++) {
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widths[i] = width;
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}
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}
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if (ds_format == null) {
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ds_format = new int[ds_titles.length];
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for (int i = 0; i < ds_titles.length; i++) {
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ds_format[i] = 1;
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}
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}
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//设置文件名
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String fileName = "";
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if (isNotEmpty(excelName)) {
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fileName = excelName;
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}
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//创建一个工作薄
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HSSFWorkbook wb = new HSSFWorkbook();
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//创建一个sheet
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HSSFSheet sheet = wb.createSheet(isNotEmpty(sheetName) ? sheetName : "excel");
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//创建表头，如果没有跳过
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int headerrow = 0;
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if (headers != null) {
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HSSFRow row = sheet.createRow(headerrow);
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//表头样式
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HSSFCellStyle style = wb.createCellStyle();
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HSSFFont font = wb.createFont();
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font.setBold(true);
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font.setFontName(excelfont);
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font.setFontHeightInPoints((short) 11);
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style.setFont(font);
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// style.setVerticalAlignment(VerticalAlignment.CENTER);
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style.setWrapText(true);
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// style.setAlignment(HorizontalAlignment.CENTER);
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// style.setBorderBottom(BorderStyle.THIN);
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// style.setBorderLeft(BorderStyle.THIN);
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// style.setBorderRight(BorderStyle.THIN);
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// style.setBorderTop(BorderStyle.THIN);
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for (int i = 0; i < headers.length; i++) {
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sheet.setColumnWidth((short) i, (short) widths[i]);
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HSSFCell cell = row.createCell(i);
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cell.setCellValue(headers[i]);
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cell.setCellStyle(style);
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}
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headerrow++;
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}
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//表格主体 解析list
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if (data != null) {
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List styleList = new ArrayList();
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for (int i = 0; i < ds_titles.length; i++) { //列数
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HSSFCellStyle style = wb.createCellStyle();
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HSSFFont font = wb.createFont();
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font.setFontName(excelfont);
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font.setFontHeightInPoints((short) 10);
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style.setFont(font);
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// style.setBorderBottom(BorderStyle.THIN);
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// style.setBorderLeft(BorderStyle.THIN);
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// style.setBorderRight(BorderStyle.THIN);
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// style.setBorderTop(BorderStyle.THIN);
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// if (ds_format[i] == 1) {
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// style.setAlignment(HorizontalAlignment.LEFT);
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// } else if (ds_format[i] == 2) {
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// style.setAlignment(HorizontalAlignment.CENTER);
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// } else if (ds_format[i] == 3) {
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// style.setAlignment(HorizontalAlignment.RIGHT);
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// //int类型
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// } else if (ds_format[i] == 4) {
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// style.setAlignment(HorizontalAlignment.RIGHT);
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// //int类型
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// style.setDataFormat(HSSFDataFormat.getBuiltinFormat("0"));
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// } else if (ds_format[i] == 5) {
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// //float类型
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// style.setAlignment(HorizontalAlignment.RIGHT);
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// style.setDataFormat(HSSFDataFormat.getBuiltinFormat("#,##0.00"));
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// } else if (ds_format[i] == 6) {
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// //百分比类型
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// style.setAlignment(HorizontalAlignment.RIGHT);
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// style.setDataFormat(HSSFDataFormat.getBuiltinFormat("0.00%"));
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// }
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styleList.add(style);
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}
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for (int i = 0; i < data.size(); i++) { //行数
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HSSFRow row = sheet.createRow(headerrow);
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Map map = data.get(i);
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for (int j = 0; j < ds_titles.length; j++) { //列数
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HSSFCell cell = row.createCell(j);
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Object o = map.get(ds_titles[j]);
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if (o == null || "".equals(o)) {
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cell.setCellValue("");
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} else if (ds_format[j] == 4) {
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//int
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cell.setCellValue((Long.valueOf((map.get(ds_titles[j])) + "")).longValue());
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} else if (ds_format[j] == 5 || ds_format[j] == 6) {
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//float
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cell.setCellValue((Double.valueOf((map.get(ds_titles[j])) + "")).doubleValue());
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} else {
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cell.setCellValue(map.get(ds_titles[j]) + "");
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}
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cell.setCellStyle((HSSFCellStyle) styleList.get(j));
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}
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headerrow++;
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}
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}
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fileName = fileName + ".xls";
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String filename = "";
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try {
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filename = encodeChineseDownloadFileName(request, fileName);
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} catch (Exception e) {
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e.printStackTrace();
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}
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response.setHeader("Content-disposition", filename);
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response.setContentType("application/vnd.ms-excel");
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response.setHeader("Content-disposition", "attachment;filename=" + filename);
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response.setHeader("Pragma", "No-cache");
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OutputStream ouputStream = response.getOutputStream();
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wb.write(ouputStream);
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ouputStream.flush();
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ouputStream.close();
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wb.close();
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}
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/**
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* 对文件流输出下载的中文文件名进行编码 屏蔽各种浏览器版本的差异性
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*
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* @throws UnsupportedEncodingException
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*/
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public static String encodeChineseDownloadFileName(
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HttpServletRequest request, String pFileName) throws Exception {
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String filename = null;
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String agent = request.getHeader("USER-AGENT");
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if (null != agent) {
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if (contains(agent, "MSIE") || contains(agent, "like Gecko")) {//IE浏览器
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filename = URLEncoder.encode(pFileName, "UTF-8");
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} else if (contains(agent, "Mozilla")) {//google,火狐浏览器
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filename = new String(pFileName.getBytes(), "ISO8859-1");
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} else {//其他
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filename = URLEncoder.encode(pFileName, "UTF-8");
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}
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} else {
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filename = pFileName;
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}
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return filename;
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}
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/**
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* 判断字符串 不为空
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*/
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public static boolean isNotEmpty(String str) {
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return !isEmpty(str);
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}
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public static boolean isEmpty(String str) {
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if (str == null || "" .equals(str.trim())) {
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return true;
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}
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return false;
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}
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public static boolean contains(String s1, String s2) {
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if (isEmpty(s1)) {
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return false;
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}
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return s1.contains(s2);
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}
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}
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