替换 Apache POI 中的表列值

我正在使用 Apache POI 3.7。我正在尝试替换Word文档（docx）中表列的值。但是，我所做的是它不断附加文档中当前值的值。但如果表列值为空，则会放置该值。你能给我一些如何解决这个问题的想法吗？下面是我到目前为止所做的代码。

提前致谢。

package test.doc;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.List;

import org.apache.poi.xwpf.usermodel.XWPFDocument;
import org.apache.poi.xwpf.usermodel.XWPFParagraph;
import org.apache.poi.xwpf.usermodel.XWPFTable;
import org.apache.poi.xwpf.usermodel.XWPFTableCell;
import org.apache.poi.xwpf.usermodel.XWPFTableRow;

public class POIDocXTableTest {

    public static void main(String[] args)throws IOException {
        String fileName = "C:\\Test.docx";
        InputStream fis = new FileInputStream(fileName);
        XWPFDocument document = new XWPFDocument(fis);
        List<XWPFParagraph> paragraphs = document.getParagraphs();

        for (int x=0; x<paragraphs.size();x++)
        {
            XWPFParagraph paragraph = paragraphs.get(x);
            System.out.println(paragraph.getParagraphText());
        }
        List<XWPFTable> tables = document.getTables();
        for (int x=0; x<tables.size();x++)
        {
            XWPFTable table = tables.get(x);
            List<XWPFTableRow> tableRows = table.getRows();
            tableRows.remove(x);
            for (int r=0; r<tableRows.size();r++)
            {
                System.out.println("Row "+ (r+1)+ ":");
                XWPFTableRow tableRow = tableRows.get(r);
                List<XWPFTableCell> tableCells = tableRow.getTableCells();
                for (int c=0; c<tableCells.size();c++)
                {
                    System.out.print("Column "+ (c+1)+ ": ");
                    XWPFTableCell tableCell = tableCells.get(c);
                    //tableCell.setText("TAE");
                    String tableCellVal = tableCell.getText();
                    if ((c+1)==2){
                        if (tableCellVal!=null){
                            if (tableCellVal.length()>0){
                                 char c1 = tableCellVal.charAt(0);
                                 String s2 = "-TEST";
                                 char c2 = s2.charAt(0);
                                 String test = tableCell.getText().replace(tableCellVal,s2);
                                 tableCell.setText(test);
                            }else{
                                //tableCell.setText("NULL");
                            }
                        }
                    }
                    System.out.println("tableCell.getText(" + (c) + "):" + tableCellVal);
                }
            }
            System.out.println("\n");
        }
        OutputStream out = new FileOutputStream(fileName);
        document.write(out);
        out.close();
    }
}

防止段落中出现样式并查找具有不同样式的搜索字符串的最佳解决方案是以下方法：

  private long replaceInParagraphs(Map<String, String> replacements, List<XWPFParagraph> xwpfParagraphs) {
    long count = 0;
    for (XWPFParagraph paragraph : xwpfParagraphs) {
      List<XWPFRun> runs = paragraph.getRuns();

      for (Map.Entry<String, String> replPair : replacements.entrySet()) {    
        String find = replPair.getKey();
        String repl = replPair.getValue();
        TextSegement found = paragraph.searchText(find, new PositionInParagraph());
        if ( found != null ) {
          count++;
          if ( found.getBeginRun() == found.getEndRun() ) {
            // whole search string is in one Run
           XWPFRun run = runs.get(found.getBeginRun());
           String runText = run.getText(run.getTextPosition());
           String replaced = runText.replace(find, repl);
           run.setText(replaced, 0);
          } else {
            // The search string spans over more than one Run
            // Put the Strings together
            StringBuilder b = new StringBuilder();
            for (int runPos = found.getBeginRun(); runPos <= found.getEndRun(); runPos++) {
              XWPFRun run = runs.get(runPos);
              b.append(run.getText(run.getTextPosition()));
            }                       
            String connectedRuns = b.toString();
            String replaced = connectedRuns.replace(find, repl);

            // The first Run receives the replaced String of all connected Runs
            XWPFRun partOne = runs.get(found.getBeginRun());
            partOne.setText(replaced, 0);
            // Removing the text in the other Runs.
            for (int runPos = found.getBeginRun()+1; runPos <= found.getEndRun(); runPos++) {
              XWPFRun partNext = runs.get(runPos);
              partNext.setText("", 0);
            }                          
          }
        }
      }      
    }
    return count;
  }

此方法适用于跨越多个运行的搜索字符串。替换的部分获取第一个找到的 Run 的样式。