如何使用iText从PDF文件中获取所有字段和值? [英] How do I get all the fields and value from a PDF file using iText?
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问题描述
使用下面的代码,我试图获取所有字段及其值,但它只返回字段值。我需要做什么才能获得两者?
Using the code below, I'm trying to get all the fields and their values, but it's only returning the field values. What do I need to do to get both?
package PrintFiled;
/*
Usage: java TestDocument <pdf file>
*/
import java.io.File;
import java.io.FileOutputStream;
import java.util.Collection;
import java.util.HashMap;
import java.util.List;
import java.util.Iterator;
import java.util.Map;
import org.pdfbox.pdmodel.interactive.form.PDField;
import com.lowagie.text.pdf.AcroFields;
import com.lowagie.text.pdf.MultiColumnText;
import com.lowagie.text.pdf.PdfDictionary;
import com.lowagie.text.pdf.RadioCheckField;
import com.lowagie.text.pdf.PdfSignature;
import com.lowagie.text.pdf.PdfReader;
import com.lowagie.text.pdf.PdfStamper;
import com.lowagie.text.pdf.AcroFields;
import com.lowagie.text.pdf.AcroFields.*;
public class TestDocument
{
public static void main(String[] args) throws Exception
{
// get the destination
String location = "test/";
if (location != null && !location.endsWith(File.separator))
{
location = location + File.separator;
}
PdfReader reader = new PdfReader(location + "acc.pdf");
String name = "Output.pdf";
PdfStamper stamp = new PdfStamper(reader, new FileOutputStream(location + name));
AcroFields form = stamp.getAcroFields();
String last = "subform[0].LastName[0]";
String first = "subform[0].FirstName[0]";
String ProcessDate="subform[0].ProcessDate[0]";
form.setField(last, "HRISTOV");
form.setField(first, "NEDKO");
form.setField(ProcessDate, "Process");
System.out.println("last Name :"+last.toString());
Map val =new HashMap();
//val=form.getFieldCache();
//System.out.println("Value :"+val);
Iterator it = val.entrySet().iterator();
while (it.hasNext())
{
Map.Entry pairs = (Map.Entry)it.next();
System.out.println("Key :"+pairs.getKey() + " = "+"Value :" + pairs.getValue());
}
Collection fieldlist = form.getFields().keySet();
// for (Iterator i = val.iterator(); i.hasNext(); )
for (Iterator i = fieldlist.iterator(); i.hasNext(); )
{
System.out.println(i.next().toString());
System.out.println("Value :"+val);
}
/*List fields = form.getFields();
Iterator fieldsIter = fields.iterator();
System.out.println(new Integer(fields.size()).toString()
+ " top-level fields were found on the form");
while (fieldsIter.hasNext()) {
PDField field = (PDField) fieldsIter.next();
// processField(field, "|--", field.getPartialName());
System.out.println("Field :"+fieldsIter);
}
*/
System.out.println("First Name:"+form.getField(first));
System.out.println("LastName :"+form.getField(last));
System.out.println("ProcessDate :"+form.getField(ProcessDate));
// close pdf stamper
stamp.setFormFlattening(true);
stamp.close();
reader.close();
}
}
推荐答案
到使用iText获取所有字段及其值:
To get all the fields and their values with iText:
// you only need a PdfStamper if you're going to change the existing PDF.
PdfReader reader = new PdfReader( pdfPath );
AcroFields fields = reader.getAcroFields();
Set<String> fldNames = fields.getFields().keySet();
for (String fldName : fldNames) {
System.out.println( fldName + ": " + fields.getField( fldName ) );
}
除此之外,如果我们能看到给你的PDF文件,它会有所帮助麻烦。
Beyond that, it would help if we could see a PDF that is giving you trouble.
这篇关于如何使用iText从PDF文件中获取所有字段和值?的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!
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