Apache POI PPT - 文本格式化

• 

  简述

  演示文稿中的文本可以使用 XSLFTextRun 类的方法进行格式化。 为此，您必须通过选择一种幻灯片布局来创建一个 XSLFTextRun 类对象，如下所示−

  
  
  //create the empty presentation 
  
  XMLSlideShow ppt = new XMLSlideShow();
  
  
  
  //getting the slide master object
  
  XSLFSlideMaster slideMaster = ppt.getSlideMasters().get(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() 设置演示文稿中文本的字体大小。

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

  以下代码片段显示了如何将不同的格式样式（粗体、斜体、下划线、删除线）应用于演示文稿中的文本。

  
  
  //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.setUnderlined(true);
  
  

  要在段落之间换行，请使用 XSLFTextParagraph 类的 addLineBreak() ，如下所示 -

  
  
  paragraph.addLineBreak();
  
  

  下面给出了使用上述所有方法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().get(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(24.0);      
  
        
  
        //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(12.0);
  
        
  
        //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.setUnderlined(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();    
  
     }
  
  }
  
  

  将上述代码另存为TextFormating.java，然后在命令提示符下编译并执行如下：

  
  
  $javac TextFormating.java
  
  $java TextFormating
  
  

  它将编译并执行以生成以下输出 -

  
  
  Formatting completed successfully 
  
  

  带有格式化文本的幻灯片如下所示 -