1、用到的jar包：fastjson-1.2.9、poi(poi-3.15、poi-ooxml-3.15、poi-ooxml-schemas-3.15、xmlbeans-2.6.0、commons-collections4-4.1)
很简单，直接上代码：
2、导出类，两个WrapAll类字符串数组都是excel文件名，如item.xlsx，写死的读取sheet 第 0 页
ParseJson方法导出为json，list是行，Map key-value:字段名-值
1 package com.ojcgame.warp; 2 3 import java.io.FileInputStream; 4 import java.io.FileWriter; 5 import java.io.IOException; 6 import java.io.InputStream; 7 import java.lang.reflect.InvocationTargetException; 8 import java.util.ArrayList; 9 import java.util.HashMap; 10 import java.util.List; 11 import java.util.Map; 12 13 import org.apache.poi.hssf.usermodel.HSSFCell; 14 import org.apache.poi.xssf.usermodel.XSSFCell; 15 import org.apache.poi.xssf.usermodel.XSSFRow; 16 import org.apache.poi.xssf.usermodel.XSSFSheet; 17 import org.apache.poi.xssf.usermodel.XSSFWorkbook; 18 import org.eclipse.core.runtime.IProgressMonitor; 19 import org.eclipse.jface.dialogs.ProgressMonitorDialog; 20 import org.eclipse.jface.operation.IRunnableWithProgress; 21 22 import com.alibaba.fastjson.JSON; 23 import com.ojcgame.common.EnvironmentManager; 24 import com.ojcgame.common.OJCUtils; 25 26 public class WarpDataManager { 27 String[] filesArr; 28 29 public void WarpAll(String[] files) { 30 filesArr = files; 31 ProgressMonitorDialog progress = new ProgressMonitorDialog(null); 32 IRunnableWithProgress progressTask = new IRunnableWithProgress() { 33 @Override 34 public void run(IProgressMonitor monitor) 35 throws InvocationTargetException, InterruptedException { 36 monitor.beginTask("正在导出数据", IProgressMonitor.UNKNOWN); 37 WarpAll(filesArr, monitor); 38 } 39 }; 40 41 try { 42 progress.run(true, false, progressTask); 43 } catch (InvocationTargetException e) { 44 e.printStackTrace(); 45 } catch (InterruptedException e) { 46 e.printStackTrace(); 47 } finally { 48 filesArr = null; 49 } 50 } 51 52 @SuppressWarnings("deprecation") 53 private void WarpAll(String[] files, IProgressMonitor monitor) { 54 InputStream is = null; 55 XSSFWorkbook xssfWorkbook = null; 56 List<String> titles = null; 57 Map<String, Object> oneCellData = null; 58 List<Map<String, Object>> AllDataList = null; 59 int fileIndex = 0; 60 try { 61 for (int f = 0, fLength = files.length; f < fLength; ++f) { 62 fileIndex = f; 63 // System.out.println("正在尝试导出：" + files[f]); 64 monitor.subTask("尝试导出：" + files[f]); 65 is = new FileInputStream(EnvironmentManager.getInstance() 66 .getDataSourcesFloderPath() + "\" + files[f]); 67 xssfWorkbook = new XSSFWorkbook(is); 68 // 读取sheet1 69 XSSFSheet xssfSheet = xssfWorkbook.getSheetAt(0); 70 if (xssfSheet == null) 71 continue; 72 73 titles = new ArrayList<String>(); 74 AllDataList = new ArrayList<Map<String, Object>>(); 75 // 先读取字段 76 XSSFRow titleRow = xssfSheet.getRow(0); 77 for (int rowIndex = 0, mLength = titleRow.getLastCellNum() + 1; rowIndex < mLength; ++rowIndex) { 78 if (null == titleRow.getCell(rowIndex) 79 || titleRow.getCell(rowIndex).getCellType() == HSSFCell.CELL_TYPE_BLANK) { 80 break; 81 } else { 82 try { 83 // System.out.println(titles.get(cellNum) + "---" 84 // + xssfCell.getStringCellValue()); 85 titles.add(titleRow.getCell(rowIndex) 86 .getStringCellValue()); 87 } catch (IllegalStateException e) { 88 // System.out.println("rowIndex number:" + rowIndex 89 // + " ---- " + files[f]); 90 // System.out.println(titles.get(cellNum) + "---" 91 // + xssfCell.getNumericCellValue()); 92 titles.add(titleRow.getCell(rowIndex) 93 .getNumericCellValue() + ""); 94 } 95 } 96 } 97 // System.out.println(xssfSheet 98 // .getLastRowNum() + 1); 99 // 读取行 100 for (int rowNum = 2, rLength = xssfSheet.getLastRowNum() + 1; rowNum < rLength; ++rowNum) { 101 XSSFRow xssfRow = xssfSheet.getRow(rowNum); 102 if (xssfRow == null) { 103 continue; 104 } 105 oneCellData = new HashMap<String, Object>(); 106 // 读取列 107 for (int cellNum = 0; cellNum < titles.size(); ++cellNum) { 108 XSSFCell xssfCell = xssfRow.getCell(cellNum); 109 if (null == xssfCell) 110 continue; 111 112 if (xssfCell.getCellType() == HSSFCell.CELL_TYPE_NUMERIC) { 113 // System.out.println(titles.get(cellNum) + "---" 114 // + xssfCell.getNumericCellValue()); 115 oneCellData.put(titles.get(cellNum), 116 xssfCell.getNumericCellValue()); 117 } else if (xssfCell.getCellType() == HSSFCell.CELL_TYPE_STRING) { 118 // System.out.println(titles.get(cellNum) + "---" 119 // + xssfCell.getStringCellValue()); 120 oneCellData.put(titles.get(cellNum), 121 xssfCell.getStringCellValue()); 122 } else if (xssfCell.getCellType() == HSSFCell.CELL_TYPE_BLANK) { 123 // System.out.println(cellNum + "--- kong=======" + 124 // rowNum); 125 // System.out 126 // .println(titles.get(cellNum) + "--- kong"); 127 oneCellData.put(titles.get(cellNum), ""); 128 } else if (xssfCell.getCellType() == HSSFCell.CELL_TYPE_FORMULA) { 129 try { 130 // System.out.println(titles.get(cellNum) + 131 // "---" 132 // + xssfCell.getStringCellValue()); 133 oneCellData.put(titles.get(cellNum), 134 xssfCell.getStringCellValue()); 135 } catch (IllegalStateException e) { 136 // System.out.println(titles.get(cellNum) + 137 // "---" 138 // + xssfCell.getNumericCellValue()); 139 oneCellData.put(titles.get(cellNum), 140 xssfCell.getNumericCellValue()); 141 } 142 } 143 } 144 145 AllDataList.add(oneCellData); 146 } 147 148 if (null != xssfWorkbook) 149 xssfWorkbook.close(); 150 if (null != is) 151 is.close(); 152 153 ParseJson(AllDataList, OJCUtils.GetFileName(files[f], ".xlsx")); 154 155 monitor.worked(f + 1); 156 } 157 158 } catch (Exception e) { 159 e.printStackTrace(); 160 OJCUtils.ShowDialog("导出失败：" + files[fileIndex]); 161 } finally { 162 monitor.done(); 163 try { 164 if (null != xssfWorkbook) 165 xssfWorkbook.close(); 166 } catch (IOException e) { 167 e.printStackTrace(); 168 OJCUtils.ShowDialog("导出失败：" + files[fileIndex]); 169 } finally { 170 try { 171 if (null != is) 172 is.close(); 173 } catch (Exception e) { 174 e.printStackTrace(); 175 OJCUtils.ShowDialog("导出失败：" + files[fileIndex]); 176 } 177 } 178 } 179 } 180 181 private void ParseJson(List<Map<String, Object>> pContents, String pFileName) { 182 String jsonStr = JSON.toJSONString(pContents, true); 183 if (null == jsonStr || jsonStr.isEmpty()) { 184 return; 185 } 186 FileWriter writer = null; 187 try { 188 writer = new FileWriter(EnvironmentManager.getInstance() 189 .getDataTargetFloderPath() + "\" + pFileName + ".json"); 190 writer.write(jsonStr); 191 writer.flush(); 192 } catch (Exception e) { 193 e.printStackTrace(); 194 OJCUtils.ShowDialog("导出JSON失败：" + pFileName); 195 } finally { 196 try { 197 if (null != writer) { 198 writer.flush(); 199 writer.close(); 200 } 201 } catch (Exception e) { 202 e.printStackTrace(); 203 OJCUtils.ShowDialog("导出JSON失败：" + pFileName); 204 } 205 } 206 } 207 208 // public static void main(String[] args) { 209 // ProgressMonitorDialog progress = new ProgressMonitorDialog(null); 210 // IRunnableWithProgress progressTask = new IRunnableWithProgress() { 211 // @Override 212 // public void run(IProgressMonitor monitor) 213 // throws InvocationTargetException, InterruptedException { 214 // monitor.beginTask("正在导出数据", IProgressMonitor.UNKNOWN); 215 // WarpDataManager wdMgr = new WarpDataManager(); 216 // wdMgr.WarpAll(new String[] { "skill.xlsx" }, monitor); 217 // monitor.done(); 218 // } 219 // }; 220 // 221 // try { 222 // progress.run(true, false, progressTask); 223 // } catch (InvocationTargetException e) { 224 // e.printStackTrace(); 225 // } catch (InterruptedException e) { 226 // e.printStackTrace(); 227 // } 228 // } 229 }