345 lines
14 KiB
Plaintext
345 lines
14 KiB
Plaintext
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package com.bonus.core;
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import java.io.FileInputStream;
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import java.io.FileNotFoundException;
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import java.io.IOException;
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import java.io.InputStream;
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import java.io.OutputStream;
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import java.io.UnsupportedEncodingException;
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import java.math.BigDecimal;
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import java.net.URLEncoder;
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import java.text.SimpleDateFormat;
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import java.util.ArrayList;
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import java.util.Date;
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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.log4j.Logger;
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import org.apache.poi.hssf.usermodel.HSSFCell;
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import org.apache.poi.hssf.usermodel.HSSFCellStyle;
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import org.apache.poi.hssf.usermodel.HSSFDataFormat;
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import org.apache.poi.hssf.usermodel.HSSFFont;
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import org.apache.poi.hssf.usermodel.HSSFRow;
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import org.apache.poi.hssf.usermodel.HSSFSheet;
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import org.apache.poi.hssf.usermodel.HSSFWorkbook;
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import org.apache.poi.ss.usermodel.Cell;
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import org.apache.poi.ss.usermodel.DateUtil;
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import org.apache.poi.ss.usermodel.Row;
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import org.apache.poi.ss.usermodel.Sheet;
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import org.apache.poi.ss.usermodel.Workbook;
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import org.apache.poi.ss.usermodel.WorkbookFactory;
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/**
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* 导出表格工具类
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* @author lvjilong
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*
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*/
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public class ExcelUtils {
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private static Logger logger=Logger.getLogger(ExcelUtils.class);
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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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*
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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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@SuppressWarnings("deprecation")
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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(StringHelper.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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@SuppressWarnings("resource")
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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(StringHelper.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.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD);
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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.setAlignment(HSSFCellStyle.ALIGN_CENTER);
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style.setBorderBottom(HSSFCellStyle.BORDER_THIN);
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style.setBorderLeft(HSSFCellStyle.BORDER_THIN);
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style.setBorderRight(HSSFCellStyle.BORDER_THIN);
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style.setBorderTop(HSSFCellStyle.BORDER_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<HSSFCellStyle> styleList = new ArrayList<HSSFCellStyle>();
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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(HSSFCellStyle.BORDER_THIN);
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style.setBorderLeft(HSSFCellStyle.BORDER_THIN);
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style.setBorderRight(HSSFCellStyle.BORDER_THIN);
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style.setBorderTop(HSSFCellStyle.BORDER_THIN);
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if(ds_format[i]==1){
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style.setAlignment(HSSFCellStyle.ALIGN_LEFT);
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}else if(ds_format[i]==2){
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style.setAlignment(HSSFCellStyle.ALIGN_CENTER);
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}else if(ds_format[i]==3){
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style.setAlignment(HSSFCellStyle.ALIGN_RIGHT);
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//int类型
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}else if(ds_format[i]==4){
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style.setAlignment(HSSFCellStyle.ALIGN_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(HSSFCellStyle.ALIGN_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(HSSFCellStyle.ALIGN_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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}
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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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* @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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logger.warn("encodeChineseDownloadFileName="+agent);
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if (null != agent){
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if(StringHelper.contains(agent, "MSIE") || StringHelper.contains(agent, "like Gecko")){//IE浏览器
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logger.warn("encodeChineseDownloadFileName=IE");
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filename = URLEncoder.encode(pFileName,"UTF-8");
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} else if(StringHelper.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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public static List<List<String>> extractExcelFileInfo(String filePath) {
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List<List<String>> info =new ArrayList<List<String>>();
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List<String> list = null;
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InputStream is;
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try {
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is = new FileInputStream(filePath);
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Workbook wk = WorkbookFactory.create(is);
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Sheet st = wk.getSheetAt(0);
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int rows = st.getPhysicalNumberOfRows();
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int coloumNum=st.getRow(1).getPhysicalNumberOfCells();
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Row row = null;
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Cell cell = null;
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boolean flag = false;
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for(int i = 1;i<rows;i++) {
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list = new ArrayList<String>();
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row = st.getRow(i);
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if(row != null) {
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for(int j = 1;j<coloumNum;j++) {
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String cellValue = "";
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cell = row.getCell(j);
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cellValue = getCellValueByCell(cell);
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if(cell != null) {
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if("".equals(cell.toString())){
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flag = true;
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break;
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}
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cell.setCellValue(cellValue);
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list.add(cell.toString());
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}else {
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list.add(null);
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}
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}
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}
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// if(flag){ break; }
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info.add(list);
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}
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} catch (FileNotFoundException e) {
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e.printStackTrace();
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} catch (Exception e) {
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e.printStackTrace();
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}
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return info;
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}
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public static String getCellValueByCell(Cell cell) {
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//判断是否为null或空串
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if (cell==null || cell.toString().trim().equals("")) {
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return "";
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}
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String cellValue = "";
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int cellType=cell.getCellType();
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switch (cellType) {
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case Cell.CELL_TYPE_NUMERIC: // 数字
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short format = cell.getCellStyle().getDataFormat();
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if (DateUtil.isCellDateFormatted(cell)) {
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SimpleDateFormat sdf = null;
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if (format == 20 || format == 32) {
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sdf = new SimpleDateFormat("HH:mm");
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} else if (format == 14 || format == 31 || format == 57 || format == 58) {
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// 处理自定义日期格式：m月d日(通过判断单元格的格式id解决，id的值是58)
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sdf = new SimpleDateFormat("yyyy-MM-dd");
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double value = cell.getNumericCellValue();
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Date date = org.apache.poi.ss.usermodel.DateUtil
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.getJavaDate(value);
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cellValue = sdf.format(date);
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}else {// 日期
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sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
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}
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try {
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cellValue = sdf.format(cell.getDateCellValue());// 日期
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} catch (Exception e) {
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try {
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throw new Exception("exception on get date data !".concat(e.toString()));
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} catch (Exception e1) {
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e1.printStackTrace();
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}
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}finally{
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sdf = null;
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}
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} else {
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BigDecimal bd = new BigDecimal(cell.getNumericCellValue());
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cellValue = bd.toPlainString();// 数值 这种用BigDecimal包装再获取plainString，可以防止获取到科学计数值
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}
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break;
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case Cell.CELL_TYPE_STRING: // 字符串
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cellValue = cell.getStringCellValue();
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break;
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case Cell.CELL_TYPE_BOOLEAN: // Boolean
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cellValue = cell.getBooleanCellValue()+"";;
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break;
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case Cell.CELL_TYPE_FORMULA: // 公式
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cellValue = cell.getCellFormula();
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break;
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case Cell.CELL_TYPE_BLANK: // 空值
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cellValue = "";
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break;
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case Cell.CELL_TYPE_ERROR: // 故障
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cellValue = "ERROR VALUE";
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break;
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default:
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cellValue = "UNKNOW VALUE";
|
|||
|
|
break;
|
|||
|
|
}
|
|||
|
|
return cellValue;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
}
|