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java通用的Excel文件创建方法,支持同文件多tab页创建。只需要调用静态方法,传递List<String>表头和List<Map>数据集合等,即可生成Excel文件。
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 | package com.matols.utils; import java.io.File; import java.io.FileInputStream; import java.io.FileOutputStream; import java.util.ArrayList; import java.util.HashMap; import java.util.List; import java.util.Map; 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.hssf.util.HSSFColor; import com.google.common.collect.Lists; /** * Excel工具类 */ public class ExcelUtils { public static void main(String[] args) throws Throwable { String path = "D:/tj/统计报表.xls" ; //表头 List<String> headers = Lists.newArrayList(); for ( int i = 1 ; i < 10 ; i++) { headers.add( "表头" +i); } //数据行 List<Map> datas = new ArrayList<Map>(); Map m = null ; for ( int i= 1 ;i< 10 ;i++){ m = new HashMap(); //一行数据集 for ( int j= 0 ;j<headers.size();j++){ m.put(j, "第" +i+ " 行数据:" +j); } datas.add(m); } ExpExs(path, "" , "统计报表" ,headers,datas); } /* * 通用的Excel文件创建方法 * title:首行标题: 2015年度统计报表 * sheets:sheet的tab标签页说明: 15年度报表 * headers:表头:List存放表头 编号、姓名、备注 * datas:数据行:list存放实体数据,map存放具体每一行数据,和headers对应。 * rs:HttpServletResponse响应作用域,如果不为null,会直接将文件流输出到客户端,下载文件 */ public static void ExpExs(String title,String sheets,List headers,List<Map> datas,HttpServletResponse rs){ try { if (sheets== null || "" .equals(sheets)){ sheets = "sheet" ; } HSSFWorkbook workbook = new HSSFWorkbook(); HSSFSheet sheet = workbook.createSheet(sheets); //+workbook.getNumberOfSheets() HSSFRow row; HSSFCell cell; // 设置这些样式 HSSFFont font = workbook.createFont(); font.setFontName(HSSFFont.FONT_ARIAL); //字体 font.setFontHeightInPoints(( short ) 16 ); //字号 font.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD); //加粗 //font.setColor(HSSFColor.BLUE.index);//颜色 HSSFCellStyle cellStyle= workbook.createCellStyle(); //设置单元格样式 cellStyle.setFillForegroundColor(HSSFColor.PALE_BLUE.index); cellStyle.setFillPattern(HSSFCellStyle.SOLID_FOREGROUND); cellStyle.setAlignment(HSSFCellStyle.ALIGN_CENTER ); cellStyle.setBorderBottom(HSSFCellStyle.BORDER_THIN); cellStyle.setBorderLeft(HSSFCellStyle.BORDER_THIN); cellStyle.setBorderRight(HSSFCellStyle.BORDER_THIN); cellStyle.setBorderTop(HSSFCellStyle.BORDER_THIN); cellStyle.setFont(font); //产生表格标题行 row = sheet.createRow( 0 ); row.setHeightInPoints( 20 ); for ( int i = 0 ; i < headers.size(); i++) { HSSFRichTextString text = new HSSFRichTextString(headers.get(i).toString()); cell = row.createCell(i); cell.setCellValue(text); cell.setCellStyle(cellStyle); } cellStyle= workbook.createCellStyle(); cellStyle.setAlignment(HSSFCellStyle.ALIGN_LEFT); cellStyle.setBorderBottom(HSSFCellStyle.BORDER_THIN); cellStyle.setBorderLeft(HSSFCellStyle.BORDER_THIN); cellStyle.setBorderRight(HSSFCellStyle.BORDER_THIN); cellStyle.setBorderTop(HSSFCellStyle.BORDER_THIN); cellStyle.setDataFormat(( short ) 0x31 ); //设置显示格式,避免点击后变成科学计数法了 //cellStyle.setWrapText(true);//设置自动换行 Map map; //遍历集合数据,产生数据行 for ( int i= 0 ; i <datas.size(); i++) { row=sheet.createRow((i+ 1 )); row.setHeightInPoints( 20 ); map = datas.get(i); for ( int j= 0 ;j<map.size();j++) { cell = row.createCell(j); cell.setCellStyle(cellStyle); cell.setCellType(HSSFCell.CELL_TYPE_STRING); if (map.get(j) != null ) { cell.setCellValue( new HSSFRichTextString(map.get(j).toString())); } else { cell.setCellValue( new HSSFRichTextString( "" )); } } } for ( int i = 0 ; i < headers.size(); i++) { sheet.autoSizeColumn(( short )i); } rs.reset(); rs.setContentType( "multipart/form-data" ); //自动识别 rs.setHeader( "Content-Disposition" , "attachment;filename=data.xls" ); //文件流输出到rs里 workbook.write(rs.getOutputStream()); rs.getOutputStream().flush(); rs.getOutputStream().close(); } catch (Exception e) { System.out.println( "#Error [" +e.getMessage()+ "] " ); } System.out.println( "[" +sheets+ "] 创建成功..." ); System.out.println( "" ); } /* * 通用的Excel文件创建方法 * path:保存路径: C:/xls/统计报表.xls * title:首行标题: 2015年度统计报表 * sheets:sheet的tab标签页说明: 15年度报表 * headers:表头:List存放表头 编号、姓名、备注 * datas:数据行:list存放实体数据,map存放具体每一行数据,和headers对应。 */ public static void ExpExs(String path,String title,String sheets,List headers,List<Map> datas){ try { if (sheets== null || "" .equals(sheets)){ sheets = "sheet" ; } boolean isExist = new File(path).exists(); if (!isExist){ HSSFWorkbook workbook = new HSSFWorkbook(); HSSFSheet sheet = workbook.createSheet(sheets); FileOutputStream out = new FileOutputStream( new File(path)); workbook.write(out); out.flush(); out.close(); } FileInputStream file = new FileInputStream( new File(path)); HSSFWorkbook workbook = new HSSFWorkbook(file); HSSFSheet sheet = null ; if (!isExist){ sheet = workbook.getSheetAt( 0 ); } else { if (workbook.getSheet(sheets) == null ){ sheet = workbook.createSheet(sheets); //+workbook.getNumberOfSheets() } else { System.out.println( "文件:[" +path+ "] [" +sheets+ "] 已经存在..." ); System.out.println( "" ); return ; } } HSSFRow row; HSSFCell cell; // 设置这些样式 HSSFFont font = workbook.createFont(); font.setFontName(HSSFFont.FONT_ARIAL); //字体 font.setFontHeightInPoints(( short ) 16 ); //字号 font.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD); //加粗 //font.setColor(HSSFColor.BLUE.index);//颜色 HSSFCellStyle cellStyle= workbook.createCellStyle(); //设置单元格样式 cellStyle.setFillForegroundColor(HSSFColor.PALE_BLUE.index); cellStyle.setFillPattern(HSSFCellStyle.SOLID_FOREGROUND); cellStyle.setAlignment(HSSFCellStyle.ALIGN_CENTER ); cellStyle.setBorderBottom(HSSFCellStyle.BORDER_THIN); cellStyle.setBorderLeft(HSSFCellStyle.BORDER_THIN); cellStyle.setBorderRight(HSSFCellStyle.BORDER_THIN); cellStyle.setBorderTop(HSSFCellStyle.BORDER_THIN); cellStyle.setFont(font); //产生表格标题行 row = sheet.createRow( 0 ); row.setHeightInPoints( 20 ); for ( int i = 0 ; i < headers.size(); i++) { HSSFRichTextString text = new HSSFRichTextString(headers.get(i).toString()); cell = row.createCell(i); cell.setCellValue(text); cell.setCellStyle(cellStyle); } cellStyle= workbook.createCellStyle(); cellStyle.setAlignment(HSSFCellStyle.ALIGN_LEFT); cellStyle.setBorderBottom(HSSFCellStyle.BORDER_THIN); cellStyle.setBorderLeft(HSSFCellStyle.BORDER_THIN); cellStyle.setBorderRight(HSSFCellStyle.BORDER_THIN); cellStyle.setBorderTop(HSSFCellStyle.BORDER_THIN); cellStyle.setDataFormat(( short ) 0x31 ); //设置显示格式,避免点击后变成科学计数法了 //cellStyle.setWrapText(true);//设置自动换行 Map map; //遍历集合数据,产生数据行 for ( int i= 0 ; i <datas.size(); i++) { row=sheet.createRow((i+ 1 )); row.setHeightInPoints( 20 ); map = datas.get(i); for ( int j= 0 ;j<map.size();j++) { cell = row.createCell(j); cell.setCellStyle(cellStyle); cell.setCellType(HSSFCell.CELL_TYPE_STRING); if (map.get(j) != null ) { cell.setCellValue( new HSSFRichTextString(map.get(j).toString())); } else { cell.setCellValue( new HSSFRichTextString( "" )); } } } for ( int i = 0 ; i < headers.size(); i++) { sheet.autoSizeColumn(( short )i); } FileOutputStream out = new FileOutputStream( new File(path)); workbook.write(out); out.flush(); out.close(); /* HSSFRow row = sheet.createRow(sheets); HSSFCell cell = null; cell=row.createCell(sheets); cell.setCellValue(new HSSFRichTextString("-["+sheets+"]-")); sheets=sheets+2;//中间空一行 row=sheet.createRow(sheets); */ } catch (Exception e) { System.out.println( "#Error [" +e.getMessage()+ "] " ); } System.out.println( "文件:[" +path+ "] [" +sheets+ "] 创建成功..." ); System.out.println( "" ); } } |