package com.stylefeng.guns.core.util;
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import org.apache.poi.hssf.usermodel.*;
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import javax.servlet.http.HttpServletResponse;
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import java.io.UnsupportedEncodingException;
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public class ExcelUtil {
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public static HSSFWorkbook getHSSFWorkbook(String sheetName, String[] title, String[][] values, HSSFWorkbook wb) {
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// 第一步,创建一个webbook,对应一个Excel文件
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if (wb == null) {
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wb = new HSSFWorkbook();
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}
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// 第二步,在webbook中添加一个sheet,对应Excel文件中的sheet
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HSSFSheet sheet = wb.createSheet(sheetName);
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// 第三步,在sheet中添加表头第0行,注意老版本poi对Excel的行数列数有限制short
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HSSFRow row = sheet.createRow(0);
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// 第四步,创建单元格,并设置值表头 设置表头居中
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HSSFCellStyle style = wb.createCellStyle();
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style.setLocked(true);
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style.setAlignment(HSSFCellStyle.ALIGN_CENTER); // 创建一个居中格式
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HSSFCell cell = null;
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// 创建标题
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for (int i = 0; i < title.length; i++) {
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cell = row.createCell(i);
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cell.setCellValue(title[i]);
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cell.setCellStyle(style);
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}
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// 创建内容
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for (int i = 0; i < values.length; i++) {
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row = sheet.createRow(i + 1);
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for (int j = 0; j < values[i].length; j++) {
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// for (int k = 0; k < values[i][j].length; k++) {
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cell = row.createCell(j);
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cell.setCellValue(values[i][j]);
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cell.setCellStyle(style);
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// }
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}
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}
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return wb;
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}
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public static HSSFWorkbook getHSSFWorkbookTime(String sheetName, String[] title, String[][] values, HSSFWorkbook wb,String time) {
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// 第一步,创建一个webbook,对应一个Excel文件
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if (wb == null) {
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wb = new HSSFWorkbook();
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}
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// 第二步,在webbook中添加一个sheet,对应Excel文件中的sheet
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HSSFSheet sheet = wb.createSheet(sheetName);
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// 第三步,在sheet中添加表头第0行,注意老版本poi对Excel的行数列数有限制short
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HSSFRow row = sheet.createRow(0);
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// 第四步,创建单元格,并设置值表头 设置表头居中
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HSSFCellStyle style = wb.createCellStyle();
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style.setLocked(true);
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style.setAlignment(HSSFCellStyle.ALIGN_CENTER); // 创建一个居中格式
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HSSFCell cell = null;
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cell = row.createCell(0);
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cell.setCellValue("时间:"+time);
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cell.setCellStyle(style);
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// 创建标题
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row=sheet.createRow(1);
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for (int i = 0; i < title.length; i++) {
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cell = row.createCell(i);
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cell.setCellValue(title[i]);
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cell.setCellStyle(style);
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}
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// 创建内容
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for (int i = 0; i < values.length; i++) {
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row = sheet.createRow(i + 2);
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for (int j = 0; j < values[i].length; j++) {
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// for (int k = 0; k < values[i][j].length; k++) {
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cell = row.createCell(j);
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cell.setCellValue(values[i][j]);
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cell.setCellStyle(style);
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// }
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}
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}
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return wb;
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}
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/**
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* 设置相应头部信息
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* @param response
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* @param fileName
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* @return
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*/
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public static void setResponseHeader(HttpServletResponse response, String fileName) {
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try {
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try {
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fileName = new String(fileName.getBytes(), "ISO8859-1");
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} catch (UnsupportedEncodingException e) {
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// TODO Auto-generated catch block
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e.printStackTrace();
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}
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response.setContentType("application/octet-stream;charset=ISO8859-1");
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response.setHeader("Content-Disposition", "attachment;filename=" + fileName);
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response.addHeader("Pargam", "no-cache");
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response.addHeader("Cache-Control", "no-cache");
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} catch (Exception ex) {
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ex.printStackTrace();
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}
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}
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}
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