利用POI获取Excel中图片和图片位置

利用POI获取Excel中图片和图片位置（支持excel2003or2007多sheet）

转自：http://blog.****.net/delongcpp/article/details/8833995

第三方JAR包(apache下载POI即可)：

• poi-3.9-20121203.jar
• dom4j-1.6.1.jar
• poi-ooxml-3.9-20121203.jar
• poi-ooxml-schemas-3.9-20121203.jar
• poi-scratchpad-3.9-20121203.jar
• stax-api-1.0.1.jar
• xmlbeans-2.3.0.jar

测试代码：

1. package com;
2. import java.io.File;
3. import java.io.FileInputStream;
4. import java.io.FileOutputStream;
5. import java.io.IOException;
6. import java.io.InputStream;
7. import java.util.ArrayList;
8. import java.util.HashMap;
9. import java.util.List;
10. import java.util.Map;
11. import org.apache.poi.POIXMLDocumentPart;
12. import org.apache.poi.hssf.usermodel.HSSFClientAnchor;
13. import org.apache.poi.hssf.usermodel.HSSFPicture;
14. import org.apache.poi.hssf.usermodel.HSSFPictureData;
15. import org.apache.poi.hssf.usermodel.HSSFShape;
16. import org.apache.poi.hssf.usermodel.HSSFSheet;
17. import org.apache.poi.hssf.usermodel.HSSFWorkbook;
18. import org.apache.poi.openxml4j.exceptions.InvalidFormatException;
19. import org.apache.poi.ss.usermodel.PictureData;
20. import org.apache.poi.ss.usermodel.Sheet;
21. import org.apache.poi.ss.usermodel.Workbook;
22. import org.apache.poi.ss.usermodel.WorkbookFactory;
23. import org.apache.poi.xssf.usermodel.XSSFClientAnchor;
24. import org.apache.poi.xssf.usermodel.XSSFDrawing;
25. import org.apache.poi.xssf.usermodel.XSSFPicture;
26. import org.apache.poi.xssf.usermodel.XSSFShape;
27. import org.apache.poi.xssf.usermodel.XSSFSheet;
28. import org.apache.poi.xssf.usermodel.XSSFWorkbook;
29. import org.openxmlformats.schemas.drawingml.x2006.spreadsheetDrawing.CTMarker;
30. /**
31. * @since 2013-04-22
32. * @author Gerrard
33. * 获取excel中 图片，并得到图片位置，支持03 07 多sheet
34. */
35. public class GetImgFromExcel {
36. /**
37. * @param args
38. * @throws IOException
39. * @throws InvalidFormatException
40. */
41. public static void main(String[] args) throws InvalidFormatException, IOException {
42. // 创建文件
43. File file = new File("model/test.xls");
44. // 创建流
45. InputStream input = new FileInputStream(file);
46. // 获取文件后缀名
47. String fileExt =  file.getName().substring(file.getName().lastIndexOf(".") + 1);
48. // 创建Workbook
49. Workbook wb = null;
50. // 创建sheet
51. Sheet sheet = null;
52. //根据后缀判断excel 2003 or 2007+
53. if (fileExt.equals("xls")) {
54. wb = (HSSFWorkbook) WorkbookFactory.create(input);
55. } else {
56. wb = new XSSFWorkbook(input);
57. }
58. //获取excel sheet总数
59. int sheetNumbers = wb.getNumberOfSheets();
60. // sheet list
61. List<Map<String, PictureData>> sheetList = new ArrayList<Map<String, PictureData>>();
62. // 循环sheet
63. for (int i = 0; i < sheetNumbers; i++) {
64. sheet = wb.getSheetAt(i);
65. // map等待存储excel图片
66. Map<String, PictureData> sheetIndexPicMap;
67. // 判断用07还是03的方法获取图片
68. if (fileExt.equals("xls")) {
69. sheetIndexPicMap = getSheetPictrues03(i, (HSSFSheet) sheet, (HSSFWorkbook) wb);
70. } else {
71. sheetIndexPicMap = getSheetPictrues07(i, (XSSFSheet) sheet, (XSSFWorkbook) wb);
72. }
73. // 将当前sheet图片map存入list
74. sheetList.add(sheetIndexPicMap);
75. }
76. printImg(sheetList);
77. }
78. /**
79. * 获取Excel2003图片
80. * @param sheetNum 当前sheet编号
81. * @param sheet 当前sheet对象
82. * @param workbook 工作簿对象
83. * @return Map key:图片单元格索引（0_1_1）String，value:图片流PictureData
84. * @throws IOException
85. */
86. public static Map<String, PictureData> getSheetPictrues03(int sheetNum,
87. HSSFSheet sheet, HSSFWorkbook workbook) {
88. Map<String, PictureData> sheetIndexPicMap = new HashMap<String, PictureData>();
89. List<HSSFPictureData> pictures = workbook.getAllPictures();
90. if (pictures.size() != 0) {
91. for (HSSFShape shape : sheet.getDrawingPatriarch().getChildren()) {
92. HSSFClientAnchor anchor = (HSSFClientAnchor) shape.getAnchor();
93. if (shape instanceof HSSFPicture) {
94. HSSFPicture pic = (HSSFPicture) shape;
95. int pictureIndex = pic.getPictureIndex() - 1;
96. HSSFPictureData picData = pictures.get(pictureIndex);
97. String picIndex = String.valueOf(sheetNum) + "_"
98. + String.valueOf(anchor.getRow1()) + "_"
99. + String.valueOf(anchor.getCol1());
100. sheetIndexPicMap.put(picIndex, picData);
101. }
102. }
103. return sheetIndexPicMap;
104. } else {
105. return null;
106. }
107. }
108. /**
109. * 获取Excel2007图片
110. * @param sheetNum 当前sheet编号
111. * @param sheet 当前sheet对象
112. * @param workbook 工作簿对象
113. * @return Map key:图片单元格索引（0_1_1）String，value:图片流PictureData
114. */
115. public static Map<String, PictureData> getSheetPictrues07(int sheetNum,
116. XSSFSheet sheet, XSSFWorkbook workbook) {
117. Map<String, PictureData> sheetIndexPicMap = new HashMap<String, PictureData>();
118. for (POIXMLDocumentPart dr : sheet.getRelations()) {
119. if (dr instanceof XSSFDrawing) {
120. XSSFDrawing drawing = (XSSFDrawing) dr;
121. List<XSSFShape> shapes = drawing.getShapes();
122. for (XSSFShape shape : shapes) {
123. XSSFPicture pic = (XSSFPicture) shape;
124. XSSFClientAnchor anchor = pic.getPreferredSize();
125. CTMarker ctMarker = anchor.getFrom();
126. String picIndex = String.valueOf(sheetNum) + "_"
127. + ctMarker.getRow() + "_" + ctMarker.getCol();
128. sheetIndexPicMap.put(picIndex, pic.getPictureData());
129. }
130. }
131. }
132. return sheetIndexPicMap;
133. }
134. public static void printImg(List<Map<String, PictureData>> sheetList) throws IOException {
135. for (Map<String, PictureData> map : sheetList) {
136. Object key[] = map.keySet().toArray();
137. for (int i = 0; i < map.size(); i++) {
138. // 获取图片流
139. PictureData pic = map.get(key[i]);
140. // 获取图片索引
141. String picName = key[i].toString();
142. // 获取图片格式
143. String ext = pic.suggestFileExtension();
144. byte[] data = pic.getData();
145. FileOutputStream out = new FileOutputStream("D:\\pic" + picName + "." + ext);
146. out.write(data);
147. out.close();
148. }
149. }
150. }
151. }