背景今天分配到任务，要导出很多表格，懒得一个个写导出代码，故准备写个工具类
工具类代码如下：
1 package com.swyx.tools.utils.poi; 2 3 import java.io.File; 4 import java.io.FileOutputStream; 5 import java.io.OutputStream; 6 import java.util.List; 7 import java.util.Map; 8 9 import org.apache.poi.hssf.usermodel.HSSFCell; 10 import org.apache.poi.hssf.usermodel.HSSFCellStyle; 11 import org.apache.poi.hssf.usermodel.HSSFPalette; 12 import org.apache.poi.hssf.usermodel.HSSFRow; 13 import org.apache.poi.hssf.usermodel.HSSFSheet; 14 import org.apache.poi.hssf.usermodel.HSSFWorkbook; 15 import org.apache.poi.ss.usermodel.BorderStyle; 16 import org.apache.poi.ss.usermodel.FillPatternType; 17 import org.apache.poi.ss.usermodel.HorizontalAlignment; 18 import org.apache.poi.ss.util.CellRangeAddress; 19 import org.apache.poi.ss.util.RegionUtil; 20 21 /** 22 * 23 * @author [email protected] 24 * @version poi version ： 4.1.0 25 */ 26 public class ExcelWriteUtil { 27 28 /** 29 * 30 * @param titleMape 标题行，为第一行标题内容与样式,参数Map<String,String>结构，字段如下： 31 * { 32 * value:内容值 33 * backgroundColor:背景色,为RGB颜色，3个色值以","隔开，默认"189,215,238" 34 * } 35 * @param titleList 表头行，为第二行表头内容与样式，参数List<Map<String,String>>结构，字段如下： 36 * [ 37 * { 38 * value:内容值 39 * backgroundColor:背景色,为RGB颜色，3个色值以","隔开，默认"189,215,238" 40 * } 41 * ] 42 * @param contentList 内容,所有取值均被转换位String类型，参数List<List<String>>结构。 43 * @param contentStyle 内容样式，参数为Map<String,String>结构，字段如下： 44 * { 45 * isZebra：内容区是否使用斑马线，枚举值：0是，1否，默认0 46 * zebraColor：斑马线颜色，为RGB颜色，3个色值以","隔开，默认"230,230,230" 47 * @param dirName 缓存文件的文件夹的绝对路径 48 * @param fileName 文件名，不要带后缀 49 * @return 50 * @throws Exception 51 */ 52 @SuppressWarnings("deprecation") 53 public static String exportXlsExcel(Map<String, String> titleMape,List<Map<String, String>> titleList,List<List<String>> contentList,Map<String, String> contentStyle,String dirName,String fileName) throws Exception { 54 //1.验证文件和文件夹名并创建Excel文件 55 if(fileName == null || fileName.trim().equals("")) { 56 throw new Exception("生成Excel文件异常：传入的文件名fileName不可为null、空字符串"); 57 } 58 File parentDir = null; 59 if(dirName == null || dirName.trim().equals("")) { 60 throw new Exception("生成Excel文件异常：传入的文件夹名dirName不可为null、空字符串"); 61 } 62 try { 63 parentDir = new File(dirName); 64 if(!parentDir.exists()) { 65 parentDir.mkdirs(); 66 } 67 } catch (Exception e) { 68 throw new Exception("生成Excel文件异常：传入的文件夹名dirName有误，dirName="+dirName); 69 }finally { 70 if(parentDir == null) { 71 throw new Exception("生成Excel文件异常：创建文件夹出错，dirName="+dirName); 72 } 73 } 74 File excelFile = null; 75 try { 76 excelFile = new File(parentDir, fileName+".xls"); 77 if(excelFile.exists()) { 78 excelFile.delete(); 79 } 80 excelFile.createNewFile(); 81 } catch (Exception e) { 82 throw new Exception("生成Excel文件异常：生成File文件出错，fileName="+fileName); 83 }finally { 84 if(excelFile == null) { 85 throw new Exception("生成Excel文件异常：生成File文件出错，fileName="+fileName); 86 } 87 } 88 89 //2创建工作簿 90 HSSFWorkbook wb=new HSSFWorkbook(); 91 HSSFSheet sheet=wb.createSheet(); 92 93 //3编辑标题 94 //3.1标题样式 95 HSSFCellStyle titleStyle=wb.createCellStyle(); 96 //3.1.1标题背景色 97 HSSFPalette palette0_0 = wb.getCustomPalette(); 98 String backgroundColorStr0_0 = titleMape.get("backgroundColor"); 99 if(backgroundColorStr0_0 == null || backgroundColorStr0_0.trim().equals("")) { 100 backgroundColorStr0_0 = "189,215,238"; 101 } 102 String[] backGroundColorStr0_0Strs = backgroundColorStr0_0.split(","); 103 if(backGroundColorStr0_0Strs.length != 3) { 104 backGroundColorStr0_0Strs = "189,215,238".split(","); 105 } 106 palette0_0.setColorAtIndex((short)9 ,(byte)new Integer(backGroundColorStr0_0Strs[0]).intValue(),(byte)(new Integer(backGroundColorStr0_0Strs[1]).intValue()),(byte)(new Integer(backGroundColorStr0_0Strs[2]).intValue())); 107 titleStyle.setFillForegroundColor((short)9 ); 108 titleStyle.setFillPattern(FillPatternType.SOLID_FOREGROUND); 109 //3.1.2标题合并单元格 110 // Region region1 = new Region(0, (short) 0, 0, (short) 6);//参数1：行号 参数2：起始列号 参数3：行号 参数4：终止列号 111 CellRangeAddress rg0_0 = new CellRangeAddress(0,0,(short)0,(short)titleList.size()-1); 112 sheet.addMergedRegion(rg0_0); 113 //3.1.3标题边框 114 //TODO 此处合并单元格的边框样式没有生效，网络上一大堆复制黏贴的东西，试了很多未成功，头痛，暂时遗留该问题 115 //使用RegionUtil类为合并后的单元格添加边框 116 RegionUtil.setBorderBottom(BorderStyle.THIN, rg0_0, sheet); // 下边框 117 RegionUtil.setBorderLeft(BorderStyle.THIN, rg0_0, sheet); // 左边框 118 RegionUtil.setBorderRight(BorderStyle.THIN, rg0_0, sheet); // 有边框 119 RegionUtil.setBorderTop(BorderStyle.THIN, rg0_0, sheet); // 上边框 120 //3.1.4对齐 121 titleStyle.setAlignment(HorizontalAlignment.CENTER); //居中 122 123 //3.2写入标题 124 HSSFRow row0 = sheet.createRow(0); 125 HSSFCell cell0_0 = row0.createCell(0); 126 cell0_0.setCellValue(titleMape.get("value")); 127 cell0_0.setCellStyle(titleStyle); 128 129 //4编辑表头 130 short fi = 11; 131 HSSFRow row1 = sheet.createRow(1); 132 for(int i = 0;i < titleList.size();i ++,fi++) { 133 Map<String, String> oneTitle = titleList.get(i); 134 //4.1当前列表头样式 135 HSSFCellStyle titleStyleI = wb.createCellStyle(); 136 //4.1.1当前列表头背景色 137 HSSFPalette palette1_I = wb.getCustomPalette(); 138 String backGroundColor1_I = oneTitle.get("backgroundColor"); 139 if(backGroundColor1_I == null || backGroundColor1_I.trim().equals("")) { 140 backGroundColor1_I = "189,215,238"; 141 } 142 String[] backGroundColor1_IStrs = backGroundColor1_I.split(","); 143 if(backGroundColor1_IStrs.length != 3) { 144 backGroundColor1_IStrs = "189,215,238".split(","); 145 } 146 palette1_I.setColorAtIndex(fi,(byte)(new Integer(backGroundColor1_IStrs[0]).intValue()),(byte)(new Integer(backGroundColor1_IStrs[1]).intValue()),(byte)(new Integer(backGroundColor1_IStrs[2]).intValue())); 147 titleStyleI.setFillPattern(FillPatternType.SOLID_FOREGROUND); 148 titleStyleI.setFillForegroundColor(fi); 149 //4.1.2当前列表头边框 150 titleStyleI.setBorderBottom(BorderStyle.THIN); //下边框 151 titleStyleI.setBorderLeft(BorderStyle.THIN);//左边框 152 titleStyleI.setBorderTop(BorderStyle.THIN);//上边框 153 titleStyleI.setBorderRight(BorderStyle.THIN);//右边框 154 //4.1.3对齐 155 titleStyleI.setAlignment(HorizontalAlignment.CENTER); //居中 156 //4.2写入当前列表头 157 HSSFCell cell1_I = row1.createCell(i); 158 cell1_I.setCellValue(oneTitle.get("value")); 159 cell1_I.setCellStyle(titleStyleI); 160 } 161 162 //5编辑内容区 163 //5.1准备样式 164 String isZebraStr = contentStyle.get("isZebra"); 165 boolean isZebra = true; 166 if(isZebraStr != null && isZebraStr.equals("1")) { 167 isZebra = false; 168 } 169 //5.1.1斑马线行样式 170 HSSFCellStyle style1 = wb.createCellStyle(); 171 //背景色 172 HSSFPalette paletteC = wb.getCustomPalette(); 173 String backGroundColorC = contentStyle.get("zebraColor"); 174 if(backGroundColorC == null || backGroundColorC.trim().equals("")) { 175 backGroundColorC = "230,230,230"; 176 } 177 String[] backGroundColorCStrs = backGroundColorC.split(","); 178 if(backGroundColorCStrs.length != 3) { 179 backGroundColorCStrs = "230,230,230".split(","); 180 } 181 paletteC.setColorAtIndex((short)10 , (byte)(new Integer(backGroundColorCStrs[0]).intValue()),(byte)(new Integer(backGroundColorCStrs[1]).intValue()),(byte)(new Integer(backGroundColorCStrs[2]).intValue())); 182 style1.setFillPattern(FillPatternType.SOLID_FOREGROUND); 183 style1.setFillForegroundColor((short)10); 184 //边框 185 style1.setBorderBottom(BorderStyle.THIN); //下边框 186 style1.setBorderLeft(BorderStyle.THIN);//左边框 187 style1.setBorderTop(BorderStyle.THIN);//上边框 188 style1.setBorderRight(BorderStyle.THIN);//右边框 189 //5.1.2非斑马线行样式 190 HSSFCellStyle style0 = wb.createCellStyle(); 191 //背景色 192 style0.setFillPattern(FillPatternType.SOLID_FOREGROUND); 193 //边框 194 style0.setBorderBottom(BorderStyle.THIN); //下边框 195 style0.setBorderLeft(BorderStyle.THIN);//左边框 196 style0.setBorderTop(BorderStyle.THIN);//上边框 197 style0.setBorderRight(BorderStyle.THIN);//右边框 198 199 //5.2写入内容 200 for(int i = 0;i < contentList.size();i ++) { 201 List<String> contents = contentList.get(i); 202 HSSFRow rowI = sheet.createRow(i+2); 203 for(int j = 0;j < contents.size();j ++) { 204 HSSFCell cellJ = rowI.createCell(j); 205 cellJ.setCellValue(contents.get(j)); 206 if(i % 2 == 1) { 207 if(isZebra) { 208 cellJ.setCellStyle(style1); 209 }else { 210 cellJ.setCellStyle(style0); 211 } 212 }else { 213 cellJ.setCellStyle(style0); 214 } 215 } 216 } 217 218 //6将文件输出 219 OutputStream ouputStream = null; 220 try { 221 ouputStream = new FileOutputStream(excelFile); 222 wb.write(ouputStream); 223 ouputStream.flush(); 224 wb.close(); 225 } catch (Exception e) { 226 throw new Exception("生成Excel文件异常：写出Excel文件异常"); 227 }finally { 228 try { 229 if(ouputStream != null) { 230 ouputStream.close(); 231 } 232 } catch (Exception e2) { 233 } 234 } 235 236 return excelFile.getAbsolutePath(); 237 } 238 }
工具类调用：
1 package com.swyx.tools.utils.poi; 2 3 import java.util.ArrayList; 4 import java.util.HashMap; 5 import java.util.List; 6 import java.util.Map; 7 8 public class ExcelWriteUtilTest { 9 public static void main(String[] args) throws Exception { 10 exportXlsExcel_Test(); 11 } 12 13 private static void exportXlsExcel_Test() throws Exception { 14 Map<String, String> titleMape = new HashMap<String, String>(); 15 titleMape.put("value", "生成Excel文件测试"); 16 17 List<Map<String, String>> titleList = new ArrayList<Map<String,String>>(); 18 Map<String, String> tm1 = new HashMap<String, String>(); 19 tm1.put("value", "第1列"); 20 titleList.add(tm1); 21 Map<String, String> tm2 = new HashMap<String, String>(); 22 tm2.put("value", "第2列"); 23 titleList.add(tm2); 24 Map<String, String> tm3 = new HashMap<String, String>(); 25 tm3.put("value", "第3列"); 26 titleList.add(tm3); 27 Map<String, String> tm4 = new HashMap<String, String>(); 28 tm4.put("value", "第4列"); 29 titleList.add(tm4); 30 Map<String, String> tm5 = new HashMap<String, String>(); 31 tm5.put("value", "第5列"); 32 titleList.add(tm5); 33 Map<String, String> tm6 = new HashMap<String, String>(); 34 tm6.put("value", "第6列"); 35 titleList.add(tm6); 36 37 List<List<String>> contentList = new ArrayList<List<String>>(); 38 List<String> cl1 = new ArrayList<String>(); 39 cl1.add("111111");cl1.add("111111");cl1.add("111111");cl1.add("111111");cl1.add("111111");cl1.add("111111"); 40 contentList.add(cl1); 41 42 List<String> cl2 = new ArrayList<String>(); 43 cl2.add("222222");cl2.add("222222");cl2.add("222222");cl2.add("222222");cl2.add("222222");cl2.add("222222"); 44 contentList.add(cl2); 45 46 List<String> cl3 = new ArrayList<String>(); 47 cl3.add("333333");cl3.add("333333");cl3.add("333333");cl3.add("333333");cl3.add("333333");cl3.add("333333"); 48 contentList.add(cl3); 49 50 List<String> cl4 = new ArrayList<String>(); 51 cl4.add("444444");cl4.add("444444");cl4.add("444444");cl4.add("444444");cl4.add("444444");cl4.add("444444"); 52 contentList.add(cl4); 53 54 List<String> cl5 = new ArrayList<String>(); 55 cl5.add("555555");cl5.add("555555");cl5.add("555555");cl5.add("555555");cl5.add("555555");cl5.add("555555"); 56 contentList.add(cl5); 57 58 List<String> cl6 = new ArrayList<String>(); 59 cl6.add("666666");cl6.add("666666");cl6.add("666666");cl6.add("666666");cl6.add("666666");cl6.add("666666"); 60 contentList.add(cl6); 61 62 List<String> cl7 = new ArrayList<String>(); 63 cl7.add("777777");cl7.add("777777");cl7.add("777777");cl7.add("777777");cl7.add("777777");cl7.add("777777"); 64 contentList.add(cl7); 65 66 List<String> cl8 = new ArrayList<String>(); 67 cl8.add("888888");cl8.add("888888");cl8.add("888888");cl8.add("888888");cl8.add("888888");cl8.add("888888"); 68 contentList.add(cl8); 69 70 List<String> cl9 = new ArrayList<String>(); 71 cl9.add("999999");cl9.add("999999");cl9.add("999999");cl9.add("999999");cl9.add("999999");cl9.add("999999"); 72 contentList.add(cl9); 73 74 Map<String, String> contentStyle = new HashMap<String, String>(); 75 String dirName = "C:\\WorkSpaces\\dxc"; 76 String fileName = "ExcelWriteUtil_exportXlsExcel_Test"; 77 78 String name = ExcelWriteUtil.exportXlsExcel(titleMape, titleList, contentList, contentStyle, dirName, fileName); 79 System.out.println(name); 80 } 81 }
生成Excel：
