Java在Word中设置上、下标,可以通过POI库来实现。下面是详细的攻略:
- 导入POI库
首先需要导入POI库,可从官网下载并在项目中引用。以下是Maven依赖:
<dependency>
<groupId>org.apache.poi</groupId>
<artifactId>poi</artifactId>
<version>4.1.2</version>
</dependency>
<dependency>
<groupId>org.apache.poi</groupId>
<artifactId>poi-ooxml</artifactId>
<version>4.1.2</version>
</dependency>
- 创建Word文档
创建一个空白的Word文档:
XWPFDocument doc = new XWPFDocument();
- 添加段落
添加一个段落,设置段落文本为“Java上下标示例”:
XWPFParagraph paragraph = doc.createParagraph();
XWPFRun run = paragraph.createRun();
run.setText("Java上下标示例");
- 设置上标
使用XWPFRun的superscript方法设置上标:
run = paragraph.createRun();
run.setText("Java ");
run = paragraph.createRun();
run.setText("2").setSubscript(VerticalAlign.SUPERSCRIPT);
上面代码中,将2设置为上标,使用了setSubscript
方法,参数为VerticalAlign.SUPERSCRIPT
。
- 设置下标
使用XWPFRun的setSubscript方法设置下标:
run = paragraph.createRun();
run.setText("H");
run = paragraph.createRun();
run.setText("2").setSubscript(VerticalAlign.SUBSCRIPT);
上面代码中,将2设置为下标,使用了setSubscript
方法,参数为VerticalAlign.SUBSCRIPT
。
示例1:
完整代码如下:
import java.io.FileOutputStream;
import java.io.IOException;
import org.apache.poi.xwpf.usermodel.VerticalAlign;
import org.apache.poi.xwpf.usermodel.XWPFDocument;
import org.apache.poi.xwpf.usermodel.XWPFParagraph;
import org.apache.poi.xwpf.usermodel.XWPFRun;
public class SubSuperScriptExample {
public static void main(String[] args) throws IOException {
XWPFDocument doc = new XWPFDocument();
XWPFParagraph paragraph = doc.createParagraph();
XWPFRun run = paragraph.createRun();
run.setText("Java上下标示例");
run = paragraph.createRun();
run.setText("Java ");
run = paragraph.createRun();
run.setText("2").setSubscript(VerticalAlign.SUPERSCRIPT);
run = paragraph.createRun();
run.setText("H");
run = paragraph.createRun();
run.setText("2").setSubscript(VerticalAlign.SUBSCRIPT);
FileOutputStream out = new FileOutputStream("SubSuperScriptExample.docx");
doc.write(out);
out.close();
System.out.println("SubSuperScriptExample.docx written successfully");
}
}
执行后,生成一个包含示例上、下标的Word文档。
示例2:
通过方法实现批量设置文本上、下标:
import java.io.FileOutputStream;
import java.io.IOException;
import org.apache.poi.xwpf.usermodel.VerticalAlign;
import org.apache.poi.xwpf.usermodel.XWPFDocument;
import org.apache.poi.xwpf.usermodel.XWPFParagraph;
import org.apache.poi.xwpf.usermodel.XWPFRun;
public class SubSuperScriptExample2 {
public static void main(String[] args) throws IOException {
XWPFDocument doc = new XWPFDocument();
XWPFParagraph paragraph = doc.createParagraph();
addTextAndSubSuperScript(paragraph, "Java ", "2", VerticalAlign.SUPERSCRIPT);
paragraph = doc.createParagraph();
addTextAndSubSuperScript(paragraph, "H", "2", VerticalAlign.SUBSCRIPT);
FileOutputStream out = new FileOutputStream("SubSuperScriptExample2.docx");
doc.write(out);
out.close();
System.out.println("SubSuperScriptExample2.docx written successfully");
}
private static void addTextAndSubSuperScript(XWPFParagraph paragraph, String text, String scriptText, VerticalAlign scriptType) {
XWPFRun run = paragraph.createRun();
run.setText(text);
run = paragraph.createRun();
run.setText(scriptText).setSubscript(scriptType);
}
}
通过调用addTextAndSubSuperScript方法实现批量设置。执行后,生成一个包含示例上、下标的Word文档。
以上是Java在Word中设置上、下标的完整攻略及示例。
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