本文通过开源pdfbox和poi进行处理多种文件格式的文本读入
1.需要的jar的maven坐标：
<dependency>
<groupId>org.apache.pdfbox</groupId>
<artifactId>pdfbox</artifactId>
<version>2.0.2</version>
</dependency>
<!-- ppt,xls,docx,pptx,xlsx-->
<dependency>
<groupId>org.apache.poi</groupId>
<artifactId>poi</artifactId>
<version>3.14</version>
</dependency>
<dependency>
<groupId>org.apache.poi</groupId>
<artifactId>poi-ooxml</artifactId>
<version>3.14</version>
</dependency>
<dependency>
<groupId>org.apache.poi</groupId>
<artifactId>poi-ooxml-schemas</artifactId>
<version>3.14</version>
</dependency>
<dependency>
<groupId>org.apache.poi</groupId>
<artifactId>poi-scratchpad</artifactId>
<version>3.14</version>
</dependency>
<dependency>
<groupId>org.apache.xmlbeans</groupId>
<artifactId>xmlbeans</artifactId>
<version>2.6.0</version>
</dependency>
<dependency>
<groupId>dom4j</groupId>
<artifactId>dom4j</artifactId>
<version>1.6.1</version>
</dependency>
处理多种文件格式，详情见代码：
1 package cn.lcg.utils;
2
3 import java.io.File;
4 import java.io.FileInputStream;
5 import java.io.IOException;
6 import java.text.NumberFormat;
7 import java.util.List;
8
9 import org.apache.pdfbox.pdmodel.PDDocument;
10 import org.apache.pdfbox.text.PDFTextStripper;
11 import org.apache.poi.hslf.extractor.PowerPointExtractor;
12 import org.apache.poi.hssf.usermodel.HSSFCell;
13 import org.apache.poi.hssf.usermodel.HSSFRow;
14 import org.apache.poi.hssf.usermodel.HSSFSheet;
15 import org.apache.poi.hssf.usermodel.HSSFWorkbook;
16 import org.apache.poi.hwpf.HWPFDocument;
17 import org.apache.poi.hwpf.usermodel.Range;
18 import org.apache.poi.ss.usermodel.Cell;
19 import org.apache.poi.xslf.usermodel.XMLSlideShow;
20 import org.apache.poi.xslf.usermodel.XSLFSlide;
21 import org.apache.poi.xslf.usermodel.XSLFSlideShow;
22 import org.apache.poi.xssf.usermodel.XSSFCell;
23 import org.apache.poi.xssf.usermodel.XSSFRow;
24 import org.apache.poi.xssf.usermodel.XSSFSheet;
25 import org.apache.poi.xssf.usermodel.XSSFWorkbook;
26 import org.apache.poi.xwpf.extractor.XWPFWordExtractor;
27 import org.apache.poi.xwpf.usermodel.XWPFDocument;
28 import org.openxmlformats.schemas.drawingml.x2006.main.CTRegularTextRun;
29 import org.openxmlformats.schemas.drawingml.x2006.main.CTTextBody;
30 import org.openxmlformats.schemas.drawingml.x2006.main.CTTextParagraph;
31 import org.openxmlformats.schemas.presentationml.x2006.main.CTGroupShape;
32 import org.openxmlformats.schemas.presentationml.x2006.main.CTShape;
33 import org.openxmlformats.schemas.presentationml.x2006.main.CTSlide;
34
35 /**
36 *
37 * @author yujian
38 * @date 2016年10月12日
39 * @version 0.0.1
40 */
41 public class FileFormat {
42 /**
43 * 用来读取doc文件的方法
44 * @param filePath
45 * @return
46 * @throws Exception
47 */
48 public static String getTextFromDoc(String filePath) throws Exception{
49 StringBuilder sb = new StringBuilder();
50 FileInputStream fis = new FileInputStream(new File(filePath));
51 HWPFDocument doc = new HWPFDocument(fis);
52 Range rang = doc.getRange();
53 sb.append(rang.text());
54 fis.close();
55 return sb.toString();
56
57 }
58 /**
59 * 用来读取docx文件
60 * @param filePath
61 * @return
62 * @throws IOException
63 * @throws Exception
64 */
65 @SuppressWarnings("resource")
66 public static String getTextFromDocx(String filePath) throws IOException {
67 FileInputStream in = new FileInputStream(filePath);
68 XWPFDocument doc = new XWPFDocument(in);
69 XWPFWordExtractor extractor = new XWPFWordExtractor(doc);
70 String text = extractor.getText();
71 in.close();
72 return text;
73 }
74 /**
75 * 用来读取pdf文件
76 * @param filePath
77 * @return
78 * @throws IOException
79 */
80 public static String getTextFromPDF(String filePath) throws IOException{
81 File input = new File(filePath);
82 PDDocument pd = PDDocument.load(input);
83 PDFTextStripper stripper = new PDFTextStripper();
84 return stripper.getText(pd);
85 }
86 /**
87 * 用来读取ppt文件
88 * @param filePath
89 * @return
90 * @throws IOException
91 */
92 public static String getTextFromPPT( String filePath) throws IOException{
93 FileInputStream in = new FileInputStream(filePath);
94 PowerPointExtractor extractor = new PowerPointExtractor(in);
95 String content = extractor.getText();
96 extractor.close();
97 return content;
98 }
99 /**
100 * 用来读取pptx文件
101 * @param filePath
102 * @return
103 * @throws IOException
104 */
105 public static String getTextFromPPTX( String filePath) throws IOException{
106 String resultString = null;
107 StringBuilder sb = new StringBuilder();
108 FileInputStream in = new FileInputStream(filePath);
109 try {
110 XMLSlideShow xmlSlideShow = new XMLSlideShow(in);
111 List<XSLFSlide> slides = xmlSlideShow.getSlides();
112 for(XSLFSlide slide:slides){
113 CTSlide rawSlide = slide.getXmlObject();
114 CTGroupShape gs = rawSlide.getCSld().getSpTree();
115 CTShape[] shapes = gs.getSpArray();
116 for(CTShape shape:shapes){
117 CTTextBody tb = shape.getTxBody();
118 if(null==tb){
119 continue;
120 }
121 CTTextParagraph[] paras = tb.getPArray();
122 for(CTTextParagraph textParagraph:paras){
123 CTRegularTextRun[] textRuns = textParagraph.getRArray();
124 for(CTRegularTextRun textRun:textRuns){
125 sb.append(textRun.getT());
126 }
127 }
128 }
129 }
130 resultString = sb.toString();
131 xmlSlideShow.close();
132 } catch (Exception e) {
133 e.printStackTrace();
134 }
135 return resultString;
136 }
137 /**
138 * 用来读取xls
139 * @param filePath
140 * @return
141 * @throws IOException
142 */
143 public static String getTextFromxls(String filePath) throws IOException{
144 FileInputStream in = new FileInputStream(filePath);
145 StringBuilder content = new StringBuilder();
146 HSSFWorkbook workbook = new HSSFWorkbook(in);
147 for(int sheetIndex=0;sheetIndex<workbook.getNumberOfSheets();sheetIndex++){
148 HSSFSheet sheet = workbook.getSheetAt(sheetIndex);
149 for(int rowIndex=0;rowIndex<=sheet.getLastRowNum();rowIndex++){
150 HSSFRow row = sheet.getRow(rowIndex);
151 if(row==null){
152 continue;
153 }
154 for(int cellnum=0;cellnum<row.getLastCellNum();cellnum++){
155 HSSFCell cell = row.getCell(cellnum);
156 if(cell!=null){
157 content.append(cell.getRichStringCellValue().getString()+" ");
158 }
159
160 }
161 }
162
163 }
164 workbook.close();
165 return content.toString();
166
167 }
168 /**
169 * 用来读取xlsx文件
170 * @param filePath
171 * @return
172 * @throws IOException
173 */
174 public static String getTextFromxlsx(String filePath) throws IOException{
175 StringBuilder content = new StringBuilder();
176 XSSFWorkbook workbook = new XSSFWorkbook(filePath);
177 for(int sheet=0;sheet<workbook.getNumberOfSheets();sheet++){
178 if(null!=workbook.getSheetAt(sheet)){
179 XSSFSheet aSheet =workbook.getSheetAt(sheet);
180 for(int row=0;row<=aSheet.getLastRowNum();row++){
181 if(null!=aSheet.getRow(row)){
182 XSSFRow aRow = aSheet.getRow(row);
183 for(int cell=0;cell<aRow.getLastCellNum();cell++){
184 if(null!=aRow.getCell(cell)){
185 XSSFCell aCell = aRow.getCell(cell);
186 if(convertCell(aCell).length()>0){
187 content.append(convertCell(aCell));
188 }
189 }
190 content.append(" ");
191 }
192 }
193 }
194 }
195 }
196 workbook.close();
197 return content.toString();
198
199 }
200
201 private static String convertCell(Cell cell){
202 NumberFormat formater = NumberFormat.getInstance();
203 formater.setGroupingUsed(false);
204 String cellValue="";
205 if(cell==null){
206 return cellValue;
207 }
208
209 switch(cell.getCellType()){
210 case HSSFCell.CELL_TYPE_NUMERIC:
211 cellValue = formater.format(cell.getNumericCellValue());
212 break;
213 case HSSFCell.CELL_TYPE_STRING:
214 cellValue = cell.getStringCellValue();
215 break;
216 case HSSFCell.CELL_TYPE_BLANK:
217 cellValue = cell.getStringCellValue();
218 break;
219 case HSSFCell.CELL_TYPE_BOOLEAN:
220 cellValue = Boolean.valueOf(cell.getBooleanCellValue()).toString();
221 break;
222 case HSSFCell.CELL_TYPE_ERROR:
223 cellValue = String.valueOf(cell.getErrorCellValue());
224 break;
225 default:cellValue="";
226 }
227 return cellValue.trim();
228 }
229 }
解释的话就没有那么多时间，这些代码在我的项目中完全正确，所以你们可以放心使用。
时间： 2024-10-13 01:28:36