Excel导出
Posted jmy520
tags:
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package cn.com.sparknet.jdjc.common.util; import java.net.URLEncoder; import java.util.List; import java.util.Map; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.apache.poi.hssf.usermodel.HSSFCell; import org.apache.poi.hssf.usermodel.HSSFCellStyle; import org.apache.poi.hssf.usermodel.HSSFFont; import org.apache.poi.hssf.usermodel.HSSFRichTextString; import org.apache.poi.hssf.usermodel.HSSFRow; import org.apache.poi.hssf.usermodel.HSSFSheet; import org.apache.poi.hssf.usermodel.HSSFWorkbook; import org.apache.poi.ss.usermodel.HorizontalAlignment; import org.apache.poi.xssf.streaming.SXSSFWorkbook; import org.apache.poi.xssf.usermodel.XSSFCell; import org.apache.poi.xssf.usermodel.XSSFCellStyle; import org.apache.poi.xssf.usermodel.XSSFFont; import org.apache.poi.xssf.usermodel.XSSFRichTextString; import org.apache.poi.xssf.usermodel.XSSFRow; import org.apache.poi.xssf.usermodel.XSSFSheet; import org.apache.poi.xssf.usermodel.XSSFWorkbook; import cn.com.sparknet.common.util.Base64Util; import cn.com.sparknet.common.util.StringUtil; /** * 列表数据导出为excel * @author wangwb * */ public class ExportExcelUtil /** * 导出EXCEL（.xls） * @param headers 表头title数组 * @param fields 对应dataList中字段名数组 * @param dataList 需要导出的数据list * @param fileName 导出的文件名 * @param request * @param response * @throws Exception */ public static void exportExcelXLS(String[] headers,String[] fields,List<Map<String, Object>> dataList,String fileName,HttpServletRequest request,HttpServletResponse response) throws Exception int rowNum = 1; //创建表格 HSSFWorkbook workbook = new HSSFWorkbook(); //创建sheet HSSFSheet sheet = workbook.createSheet(); //在sheet中添加表头行 HSSFRow firstRow = sheet.createRow(0); //表头设置为居中加粗 HSSFCellStyle style = workbook.createCellStyle(); HSSFFont font = workbook.createFont(); font.setBold(true); style.setAlignment(HSSFCellStyle.ALIGN_CENTER); style.setFont(font); //表头行添加内容 for(int i=0;i<headers.length;i++) //表头行添加单元格 HSSFCell cell = firstRow.createCell(i); HSSFRichTextString headerText = new HSSFRichTextString(headers[i]); //单元格添加内容 cell.setCellValue(headerText); cell.setCellStyle(style); //在数据放入对应的列 for (Map<String, Object> map : dataList) //添加行 HSSFRow dataRow = sheet.createRow(rowNum); for(int i=0;i<fields.length;i++) HSSFRichTextString dataText = new HSSFRichTextString(StringUtil.nullToEmpty(map.get(fields[i]))); dataRow.createCell(i).setCellValue(dataText); rowNum++; //设置表格默认宽度 sheet.setDefaultColumnWidth(25); String agent = request.getHeader("User-Agent"); String filenameEncoder = ""; if (agent.contains("Firefox")) // 火狐浏览器 filenameEncoder = "=?utf-8?B?" + Base64Util.encode(fileName.getBytes("utf-8")) + "?="; else // 其它浏览器 filenameEncoder = URLEncoder.encode(fileName, "utf-8"); response.setContentType("application/vnd.ms-excel"); response.setHeader("Content-disposition", "attachment;filename="+filenameEncoder); //刷新缓冲 response.flushBuffer(); //workbook写入到response的输出流中 workbook.write(response.getOutputStream()); /** * 导出EXCEL（.xlsx） * @param headers 表头title数组 * @param fields 对应dataList中字段名数组 * @param dataList 需要导出的数据list * @param fileName 导出的文件名 * @param request * @param response * @throws Exception */ public static void exportExcelXLSX(String[] headers,String[] fields,List<Map<String, Object>> dataList,String fileName,HttpServletRequest request,HttpServletResponse response) throws Exception int rowNum = 1; //创建表格 XSSFWorkbook workbook1 = new XSSFWorkbook(); SXSSFWorkbook workbook2 = new SXSSFWorkbook(); //创建sheet XSSFSheet sheet = workbook1.createSheet("Excel 2007导出"); //在sheet中添加表头行 XSSFRow firstRow = sheet.createRow(0); //表头设置为居中加粗 XSSFCellStyle style = workbook1.createCellStyle(); XSSFFont font = workbook1.createFont(); font.setBold(true); style.setAlignment(HorizontalAlignment.CENTER); style.setFont(font); //表头行添加内容 for(int i=0;i<headers.length;i++) //表头行添加单元格 XSSFCell cell = firstRow.createCell(i); // HSSFRichTextString headerText = new HSSFRichTextString(headers[i]); //富文本格式 XSSFRichTextString headerText = new XSSFRichTextString(headers[i]); //单元格添加内容 cell.setCellValue(headerText); //设置单元格样式 cell.setCellStyle(style); //在数据放入对应的列 for (Map<String, Object> map : dataList) //添加行 XSSFRow dataRow = sheet.createRow(rowNum); for(int i=0;i<fields.length;i++) XSSFRichTextString dataText = new XSSFRichTextString(StringUtil.nullToEmpty(map.get(fields[i]))); dataRow.createCell(i).setCellValue(dataText); rowNum++; //设置表格默认宽度 sheet.setDefaultColumnWidth(25); String agent = request.getHeader("User-Agent"); String filenameEncoder = ""; if (agent.contains("Firefox")) // 火狐浏览器 filenameEncoder = "=?utf-8?B?" + Base64Util.encode(fileName.getBytes("utf-8")) + "?="; else // 其它浏览器 filenameEncoder = URLEncoder.encode(fileName, "utf-8"); response.setContentType("application/vnd.ms-excel"); response.setHeader("Content-disposition", "attachment;filename="+filenameEncoder); //刷新缓冲 response.flushBuffer(); //将workbook写入到response的输出流中，供页面下载 workbook1.write(response.getOutputStream());
pom.xml(自行搜索版本):
<dependency>
<groupId>org.apache.poi</groupId>
<artifactId>poi</artifactId>
</dependency>
<dependency>
<groupId>org.apache.poi</groupId>
<artifactId>poi-excelant</artifactId>
</dependency>
<dependency>
<groupId>org.apache.poi</groupId>
<artifactId>poi-ooxml</artifactId>
</dependency>
<dependency>
<groupId>org.apache.poi</groupId>
<artifactId>poi-scratchpad</artifactId>
</dependency>
StringUtil类:
package cn.com.sparknet.common.util; import java.io.IOException; import java.io.InputStreamReader; import java.io.LineNumberReader; import java.io.UnsupportedEncodingException; import java.text.DateFormat; import java.text.SimpleDateFormat; import java.util.ArrayList; import java.util.Calendar; import java.util.Date; import java.util.GregorianCalendar; import java.util.HashMap; import java.util.Iterator; import java.util.List; import java.util.Map; import java.util.Set; import java.util.Map.Entry; import javax.servlet.http.Cookie; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.springframework.web.servlet.mvc.method.annotation.RequestResponseBodyMethodProcessor; import cn.com.sparknet.common.util.Base64Encrypt; /** * 字符工具类 * @author chenxy */ public final class StringUtil private StringUtil() /** * 判断是否不为null * @param string * @return boolean */ public static final boolean isNotEmpty(String string) return string != null &&(!string.equals(""))&& string.length() > 0; /** * 判断是否为null * @param string * @return boolean */ public static final boolean isEmpty(String string) return string == null || string.length() == 0|| "null".equals(string); /** * null转换成"" * @param string * @return String */ public static final String nullToEmpty(String str) if (str == null||"null".equals(str)) return ""; else return str.toString().trim(); /** * null转换成"" * @param string * @return String */ public static final String nullToEmpty(Object obj) if (obj == null) return ""; else return (obj + "").trim(); /** * null转换成"0" * @param string * @return String */ public static final String nullToZero(String str) if (str == null || "null".equals(str) || "".equals(str)) return "0"; else return str.toString().trim(); /** * null转换成" " * @param string * @return String */ public static final String nullToSpace(String str) if (str == null || "".equals(str)) return " "; else return str.toString().trim(); /** * null转换成"null" * @param string * @return String */ public static final String nullToNull(String str) if (str == null||"null".equals(str)||"".equals(str)) return "null"; else return str.toString().trim(); /** * 对象为null时返回其他自定义对象 * @param obj * @param replaceContent * @return */ public static Object nullToObject(Object sourceObj,Object targetObj) if(sourceObj == null) return targetObj; String str = sourceObj.toString().trim(); return str.length() == 0 ? targetObj : str; /** * * 说明：将字符串数组"str1","str2","str3"转换成‘str1‘,‘str2‘,‘str3‘ * @param string[] * @return String * */ public static final String arrToStr(String[] strings) StringBuffer buf = new StringBuffer(); buf.append("‘"); buf.append(join("‘,‘",strings)); buf.append("‘"); return buf.toString(); /** * * 说明：将字符串"str1,str2,str3"转换成"‘str1‘,‘str2‘,‘str3‘" * @param String * @return String * */ public static final String strToStr(String str) StringBuffer buf = new StringBuffer(); buf.append("‘"); buf.append(replace(str,",","‘,‘")); buf.append("‘"); return buf.toString(); public static final String join(String seperator, String[] strings) int length = strings.length; if (length == 0) return ""; StringBuffer buf = new StringBuffer(length * strings[0].length()).append(strings[0]); for ( int i = 1; i < length; i++ ) buf.append(seperator).append(strings[i]); return buf.toString(); /** * * 说明：替换字符串 * @param String * @return String * */ public static final String replace(String template, String placeholder, String replacement) return replace(template, placeholder, replacement, false ); public static final String replace(String template, String placeholder, String replacement, boolean wholeWords) int loc = template.indexOf( placeholder ); if ( loc < 0 ) return template; else final boolean actuallyReplace = !wholeWords || loc + placeholder.length() == template.length() || !Character.isJavaIdentifierPart( template.charAt( loc + placeholder.length() ) ); String actualReplacement = actuallyReplace ? replacement : placeholder; return new StringBuffer( template.substring( 0, loc ) ) .append( actualReplacement ) .append( replace( template.substring( loc + placeholder.length() ), placeholder, replacement, wholeWords ) ).toString(); /** * Map中的null处理 * @param Map * @return Map */ public static final Map nullToEmptyForMap(Map map) Map convertedMap = null; Set mapset = map.entrySet(); String EMPTYSTR = ""; Entry entry=null; if (map != null) convertedMap = new HashMap(); Iterator it=null; for (it = mapset.iterator(); it.hasNext();) entry = (Entry) it.next(); if (entry.getValue() == null) convertedMap.put(entry.getKey(), EMPTYSTR); else convertedMap.put(entry.getKey(), entry.getValue()); return convertedMap; /** * List中的null处理 * @param List * @return List */ public static final List nullToEmptyForList(List list) List convertedList = null; if (list != null && list.size() > 0) convertedList = new ArrayList(); Iterator it = list.iterator(); Map map=null; Map convertedMap=null; while (it.hasNext()) map = (Map) it.next(); convertedMap = nullToEmptyForMap(map); convertedList.add(convertedMap); return convertedList; /** * Date转为String * @return String */ public static final String dateToString(Date date,String format) SimpleDateFormat sdf = new SimpleDateFormat(format); Calendar cd = Calendar.getInstance(); cd.setTime(date); return sdf.format(cd.getTime()); /** * 获取系统日期 * @return String */ public static final String getDate() SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd"); Calendar cd = Calendar.getInstance(); cd.setTime(new Date()); return sdf.format(cd.getTime()); /** * 获取系统时间 * @return String */ public static final String getTime() SimpleDateFormat sdf = new SimpleDateFormat("hh:mm:ss"); Calendar cd = Calendar.getInstance(); cd.setTime(new Date()); return sdf.format(cd.getTime()); /** * 获取系统日期 时间 * @return String */ public static final String getDateTime() SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); Calendar cd = Calendar.getInstance(); cd.setTime(new Date()); return sdf.format(cd.getTime()); private static GregorianCalendar calendar = new GregorianCalendar(); public static final int getYear() return calendar.get(Calendar.YEAR); public static final int getMonth() return calendar.get(Calendar.MONTH) + 1; public static final int getDay() return calendar.get(Calendar.DAY_OF_MONTH); public static final int getHours() return calendar.get(Calendar.HOUR_OF_DAY); public static final int getMinutes() return calendar.get(Calendar.MINUTE); public static final int getSeconds() return calendar.get(Calendar.SECOND); public static final int getMilliSeconds() return calendar.get(Calendar.MILLISECOND); public static final String getMorningValue() if (getHours() >= 1 && getHours() <= 12) return "上午好"; else if (getHours() >= 13 && getHours() <= 18) return "下午好"; else return "晚上好"; /** * 说明：将字符串org_id转换成orgId的形式 * @return String */ public static final String getBeanStr(String str) String beanStr=""; if(str.indexOf("_",-1)>-1) String[] strArr=str.toLowerCase().split("_"); for(int i=0;i<strArr.length;i++) if(i==0) beanStr+=strArr[0]; else beanStr+=(strArr[i]).substring(0,1).toUpperCase()+strArr[i].substring(1,strArr[i].length()); else beanStr=str.toLowerCase(); return beanStr; /** * 说明：获取Map中的所有键的集合 * @return List<String> */ public static final List<String> getMapKey(Map map) List<String> list = new ArrayList<String>(); Set set = map.entrySet(); Iterator iterator = set.iterator(); Map.Entry mapEntry=null; while(iterator.hasNext()) mapEntry = (Map.Entry) iterator.next(); list.add(mapEntry.getKey().toString()); return list; /** * 说明：将Map中的键转换成大(小)写 * @return Map */ public static final Map getUpperLowerMap(Map map,String upperOrLower) String upperOrLowerStr=nullToEmpty(upperOrLower); Map resultMap = new HashMap(); Set set = map.entrySet(); Iterator iterator = set.iterator(); Map.Entry mapEntry=null; while(iterator.hasNext()) mapEntry = (Map.Entry) iterator.next(); if(upperOrLowerStr.equalsIgnoreCase("upper")) resultMap.put(mapEntry.getKey().toString().toUpperCase(), mapEntry.getValue()); else if(upperOrLowerStr.equalsIgnoreCase("lower")) resultMap.put(mapEntry.getKey().toString().toLowerCase(), mapEntry.getValue()); else resultMap.put(mapEntry.getKey().toString(), mapEntry.getValue()); return resultMap; /** * 说明：获取项目名称 * @return String */ public static final String getContextPath(HttpServletRequest request) return request.getContextPath(); /** * 说明：获取项目URL路径 * @return String */ public static final String getUrlPath(HttpServletRequest request) return request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+getContextPath(request); /** * 说明：获取项目目录路径 * @return String */ public static final String getDirectoryPath(HttpServletRequest request,Class<?> clazz) /* String url=clazz.getClassLoader().getResource("/").toString(); if(url.indexOf("file:/")>-1) url=url.replace("file:/",""); String contextPath=getContextPath(request); url=url.split(contextPath)[0]+contextPath; return url.replaceAll("%20", " ");//处理路劲中的空格 */ String sysPath = clazz.getClassLoader().getResource("/").getPath(); if (sysPath.startsWith("/")) sysPath = sysPath.substring(1, sysPath.length()); return sysPath; /** * 说明：设置Cookie * @param response * @param key 健 * @param value 值 * @param maxAge 存活周期 单位：秒 如果设置为负值，则在内存中保存，关闭浏览器就失效 */ public static final void setCookie(HttpServletResponse response,String key,String value,int maxAge) String encodeValue=""; try encodeValue = java.net.URLEncoder.encode(value,"utf-8"); Cookie cookie = new Cookie(key,encodeValue); cookie.setMaxAge(maxAge); cookie.setValue(encodeValue); response.addCookie(cookie); catch (UnsupportedEncodingException e) throw new RuntimeException(e.getMessage(),e); /** * 说明：获取Cookie * @param request * @param key 健 * @return */ public static final String getCookie(HttpServletRequest request,String key) String value=""; try Cookie c = null; Cookie[] cookies = request.getCookies(); for (int i = 0; i < cookies.length; i++) c = cookies[i]; if(c.getName().equals(key)) value=java.net.URLDecoder.decode(c.getValue(), "UTF-8"); catch (UnsupportedEncodingException e) throw new RuntimeException(e.getMessage(),e); return value; /** * 说明：修改Cookie * @param request * @param response * @param key * @param newValue */ public static final void updCookie(HttpServletRequest request,HttpServletResponse response,String key,String newValue) try String encodeValue = java.net.URLEncoder.encode(newValue,"utf-8"); Cookie[] cookies = request.getCookies(); if(cookies.length>1) for(int i = 0;i<cookies.length;i++) if(cookies[i].getName().equals(key)) cookies[i].setValue(encodeValue); response.addCookie(cookies[i]); break; catch (UnsupportedEncodingException e) throw new RuntimeException(e.getMessage(),e); /** * 说明：删除Cookie * @param response * @param key */ public static final void delCookie(HttpServletResponse response,String key) Cookie cookie = new Cookie(key,null); cookie.setMaxAge(0); response.addCookie(cookie); /** * 获取IP地址 * @param request * @return */ public static final String getIpAddress(HttpServletRequest request) String ip = request.getHeader("x-forwarded-for"); if(ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) ip = request.getHeader("Proxy-Client-IP"); if(ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) ip = request.getHeader("WL-Proxy-Client-IP"); if(ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) ip = request.getRemoteAddr(); return ip; /** * 获取本机Mac地址 * @return */ public static final String getMacAddress() String line=""; String MacAddress=""; InputStreamReader is=null; LineNumberReader ln=null; try Process process = Runtime.getRuntime().exec("ipconfig /all"); is = new InputStreamReader(process.getInputStream()); ln = new LineNumberReader(is); while ((line = ln.readLine()) != null) if (line.indexOf("Physical Address") > 0) MacAddress = line.substring(line.indexOf("-") - 2); catch (IOException e) throw new RuntimeException(e.getMessage(),e); finally try if(is!=null) is.close(); is=null; if(ln!=null) ln.close(); ln=null; catch(Exception e) throw new RuntimeException(e.getMessage(),e); return MacAddress; /** * 根据IP获取Mac地址 * @param ip * @return * @throws IOException */ public static final String getMacAddress(String ip) if(ip.equals("localhost")||ip.equals("127.0.0.1")) return getMacAddress(); String line=""; String macAddress = ""; InputStreamReader is = null; LineNumberReader ln = null; try Process p = Runtime.getRuntime().exec("nbtstat -A " + ip); is = new InputStreamReader(p.getInputStream()); ln = new LineNumberReader(is); for (int i = 1; i < 100; i++) line = ln.readLine(); if (line != null) if (line.indexOf("MAC Address") > 1) macAddress = line.substring(line.indexOf("MAC Address") + 14, line.length()); break; catch(IOException e) throw new RuntimeException(e.getMessage(),e); finally try if(ln!=null) ln.close(); ln=null; if(is!=null) is.close(); is=null; catch(Exception e) throw new RuntimeException(e.getMessage(),e); return macAddress; /** * 判断date1是否在date2之后 */ public static boolean isAfterDate(String date1, String date2) throws Exception DateFormat format = new SimpleDateFormat("yyyy-MM-dd"); Date d1 = format.parse(date1); Date d2 = format.parse(date2); if (d1.after(d2)) return true; else return false; /** * 判断date1是否在date2之前 */ public static boolean isBeforeDate(String date1, String date2) throws Exception DateFormat format = new SimpleDateFormat("yyyy-MM-dd"); Date d1 = format.parse(date1); Date d2 = format.parse(date2); if (d1.before(d2)) return true; else return false; /** * 判断date1是否与date2相等 */ public static boolean isEqualsDate(String date1, String date2) throws Exception DateFormat format = new SimpleDateFormat("yyyy-MM-dd"); Date d1 = format.parse(date1); Date d2 = format.parse(date2); if (d1.equals(d2)) return true; else return false; /** * 获取日期区间 */ public static String[] getRangeDate(String startDateStr,String endDateStr) throws Exception SimpleDateFormat myFormatter = new SimpleDateFormat("yyyy-MM-dd"); Date tempDate=myFormatter.parse(startDateStr); Date date1= myFormatter.parse(startDateStr); Date date2= myFormatter.parse(endDateStr); long day=(date2.getTime()-date1.getTime())/(24*60*60*1000)+1; String[] date=new String[(int)day]; date[0]=startDateStr; long startDate=0; for(int i=1;i<(int)day;i++) startDate=(tempDate.getTime()/1000)+60*60*24; tempDate.setTime(startDate*1000); date[i]=myFormatter.format(tempDate); if(tempDate.getTime()==date2.getTime()) break; return date; /** * 16进制转换为二进制 * @param hexStr * @return */ public static byte[] parseHexStr2Byte(String hexStr) if (hexStr.length() < 1) return null; byte[] result = new byte[hexStr.length()/2]; for (int i = 0;i< hexStr.length()/2; i++) int high = Integer.parseInt(hexStr.substring(i*2, i*2+1), 16); int low = Integer.parseInt(hexStr.substring(i*2+1, i*2+2), 16); result[i] = (byte) (high * 16 + low); return result; /** * 二进制转换成16进制 * @param buf * @return */ public static String parseByte2HexStr(byte[] buf) StringBuffer sb = new StringBuffer(); for (int i = 0; i < buf.length; i++) String hex = Integer.toHexString(buf[i] & 0xFF); if (hex.length() == 1) hex = ‘0‘ + hex; sb.append(hex.toUpperCase()); return sb.toString(); /** * 过滤掉<>防止跨站脚本 * @param str * @return */ public static String strFiltrate(String str) if (str == null || str.equals("")) return str; str = str.replaceAll("&", "&"); str = str.replaceAll("<", "<"); str = str.replaceAll(">", ">"); str = str.replaceAll("\"", ""); str = str.replaceAll("\‘", ""); str = str.replaceAll("%", ""); str = str.replaceAll("eval", ""); str = str.replaceAll("expression", ""); str = str.replaceAll("unescape", ""); str = str.replaceAll(";", "；"); str = str.replaceAll(":", "："); str = str.replaceAll("null", ""); return str; /** * 针对企业的数据进行转换，我去年买了个表 * */ public static String baseToStr(String val) val = val.replaceAll("\\$1", "="); byte[] byteArray = null; String base = ""; try byteArray = Base64Encrypt.decryptBASE64(val); base = new String(byteArray, "UTF-8"); catch ( Exception e ) e.printStackTrace(); return base; /** * 判断字符串组是否有空值true:有空值 */ public static boolean isHaveEmpty(String[] strings) for(String aaa:strings) if(aaa.length()==0 || aaa.equals("") || aaa==null) return true; return false;
Base64Util类：
package cn.com.sparknet.common.util; import java.io.InputStream; import sun.misc.BASE64Decoder; import sun.misc.BASE64Encoder; /** * Base64加密与解密 * @author chenxy * */ @SuppressWarnings ( "restriction" ) public final class Base64Util private Base64Util() /** * 加密 * @param b * @return * @throws Exception */ public static String encode(byte[] b) throws Exception return new BASE64Encoder().encode(b); /** * 加密 * @param content * @return * @throws Exception */ public static String encode(String content) throws Exception return encode(content.getBytes()); /** * 加密 * @param content * @param charset * @return * @throws Exception */ public static String encode(String content,String charset) throws Exception return encode(content.getBytes(charset)); /** * 解密 * @param content * @param charset * @return * @throws Exception */ public static String decode(String content,String charset) throws Exception byte[] buffer = new BASE64Decoder().decodeBuffer(content); return new String(buffer, charset); /** * 解密 * @param is * @param charset * @return * @throws Exception */ public static String decode(InputStream is,String charset) throws Exception byte[] buffer = new BASE64Decoder().decodeBuffer(is); return new String(buffer, charset);
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