Apache POI PPT - 格式化文本

可以使用 XSLFTextRun 類的方法來格式化演示文稿中的文本。 為此，您必須通過選擇一個幻燈片布局來創(chuàng)建一個 XSLFTextRun 類對象，如下所示:

//create the empty presentation 
XMLSlideShow ppt = new XMLSlideShow();

//getting the slide master object
XSLFSlideMaster slideMaster = ppt.getSlideMasters()[0];

//select a layout from specified list
XSLFSlideLayout slidelayout = slideMaster.getLayout(SlideLayout.TITLE_AND_CONTENT);

//creating a slide with title and content layout
XSLFSlide slide = ppt.createSlide(slidelayout);

//selection of title place holder
XSLFTextShape body = slide.getPlaceholder(1);

//clear the existing text in the slide
body.clearText();

//adding new paragraph
XSLFTextParagraph paragraph=body.addNewTextParagraph();

//creating text run object
XSLFTextRun run = paragraph.addNewTextRun();

您可以使用 setFontSize()設(shè)置演示文稿中文本的字體大小。

run.setFontColor(java.awt.Color.red);
run.setFontSize(24);

以下代碼段顯示了如何對演示文稿中的文字應(yīng)用不同的格式樣式(粗體，斜體，下劃線，刪除線)。

//change the text into bold format
run.setBold(true);

//change the text it to italic format
run.setItalic(true)

// strike through the text
run.setStrikethrough(true);

//underline the text
run.setUnderline(true);

要在段落之間使用換行符，請使用 XSLFTextParagraph 類的 addLineBreak()，如下所示:

paragraph.addLineBreak();

下面給出了使用所有上述方法來格式化文本的完整程序:

import java.io.FileOutputStream;
import java.io.IOException;

import org.apache.poi.xslf.usermodel.SlideLayout;
import org.apache.poi.xslf.usermodel.XMLSlideShow;
import org.apache.poi.xslf.usermodel.XSLFSlide;
import org.apache.poi.xslf.usermodel.XSLFSlideLayout;
import org.apache.poi.xslf.usermodel.XSLFSlideMaster;
import org.apache.poi.xslf.usermodel.XSLFTextParagraph;
import org.apache.poi.xslf.usermodel.XSLFTextRun;
import org.apache.poi.xslf.usermodel.XSLFTextShape;

public class TextFormating {
   
   public static void main(String args[]) throws IOException{
      
      //creating an empty presentation
      XMLSlideShow ppt = new XMLSlideShow();
      
      //getting the slide master object
      XSLFSlideMaster slideMaster = ppt.getSlideMasters()[0];
      
      //select a layout from specified list
      XSLFSlideLayout slidelayout = slideMaster.getLayout(SlideLayout.TITLE_AND_CONTENT);
      
      //creating a slide with title and content layout
      XSLFSlide slide = ppt.createSlide(slidelayout);
      
      //selection of title place holder
      XSLFTextShape body = slide.getPlaceholder(1);
      
      //clear the existing text in the slide
      body.clearText();
      
      //adding new paragraph
      XSLFTextParagraph paragraph=body.addNewTextParagraph();
      
   //formatting line 1
      
      XSLFTextRun run1 = paragraph.addNewTextRun();
      run1.setText("This is a colored line");      
      
      //setting color to the text
      run1.setFontColor(java.awt.Color.red);      
      
      //setting font size to the text
      run1.setFontSize(24);      
      
      //moving to the next line
      paragraph.addLineBreak();
     
   //formatting line 2
      
      XSLFTextRun run2 = paragraph.addNewTextRun();
      run2.setText("This is a bold line");
      run2.setFontColor(java.awt.Color.CYAN);
      
      //making the text bold
      run2.setBold(true);
      paragraph.addLineBreak();
      
   //formatting line 3
      
      XSLFTextRun run3 = paragraph.addNewTextRun();
      run3.setText(" This is a striked line");
      run3.setFontSize(12);
      
      //making the text italic
      run3.setItalic(true);
      
      //strike through the text
      run3.setStrikethrough(true);
      paragraph.addLineBreak();
       
   //formatting line 4
      
      XSLFTextRun run4 = paragraph.addNewTextRun();
      run4.setText(" This an underlined line");
      run4.setUnderline(true);
      
      //underlining the text
      paragraph.addLineBreak();
      
      //creating a file object
      File file=new File(“TextFormat.pptx");
      FileOutputStream out = new FileOutputStream(file);
       
      //saving the changes to a file
      ppt.write(out);
      out.close();	 
   }
}

將上述代碼保存為 TextFormating.java ，然后從命令提示符處編譯并執(zhí)行，如下所示:

$javac TextFormating.java
$java TextFormating

它將編譯并執(zhí)行以生成以下輸出:

Formatting completed successfully 

帶有格式文本的幻燈片如下所示: